Improve styling of app

app/__init__.py

@@ -33,7 +33,7 @@ def create_app():
     # Set up the user_loader function
     @login_manager.user_loader
     def load_user(user_id):
-        return User.query.get(int(user_id))  # Query the User model by ID
+        return db.session.get(User, int(user_id))
 
     # Register blueprints
     from app.routes.auth import auth

app/config.py

@@ -1,10 +1,16 @@
 import os
 
+from datetime import timedelta
+
 class Config:
     """Base configuration."""
     SECRET_KEY = os.environ.get('SECRET_KEY', '234234sdfsdfsdfsdf345345')
     SQLALCHEMY_TRACK_MODIFICATIONS = False
     
+    # Session and Remember Me configurations to keep user logged in almost indefinitely (10 years)
+    PERMANENT_SESSION_LIFETIME = timedelta(days=3650)
+    REMEMBER_COOKIE_DURATION = timedelta(days=3650)
+
 class DevelopmentConfig(Config):
     """Development configuration."""
     DEBUG = True

app/models.py

@@ -7,7 +7,7 @@ class User(UserMixin, db.Model):
     id = db.Column(db.Integer, primary_key=True)
     username = db.Column(db.String(255), nullable=False, unique=True)
     password_hash = db.Column(db.Text, nullable=False)
-    profile = db.relationship('Profile', backref='user', uselist=False)
+    profile = db.relationship('Profile', backref='user', uselist=False, lazy='joined')
 
 class Profile(db.Model):
     id = db.Column(db.Integer, primary_key=True)
@@ -19,8 +19,13 @@ class Profile(db.Model):
     diastolic_threshold = db.Column(db.Integer, default=90)
     dark_mode = db.Column(db.Boolean, default=False)
     timezone = db.Column(db.String(50), default='UTC')  # e.g., 'Australia/Sydney'
+    updated_at = db.Column(db.DateTime, default=db.func.now(), onupdate=db.func.now())
 
 class Reading(db.Model):
+    __table_args__ = (
+        db.Index('ix_reading_user_timestamp', 'user_id', 'timestamp'),
+    )
+
     id = db.Column(db.Integer, primary_key=True)
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     timestamp = db.Column(db.DateTime, nullable=False)

app/routes/auth.py

@@ -1,6 +1,6 @@
 from flask import Blueprint, render_template, redirect, url_for, flash
 from werkzeug.security import generate_password_hash, check_password_hash
-from app.models import db, User
+from app.models import db, User, Profile
 from app.forms import LoginForm, SignupForm
 from flask_login import login_user, login_required, logout_user
 
@@ -11,7 +11,8 @@ def signup():
     form = SignupForm()
     if form.validate_on_submit():
         hashed_password = generate_password_hash(form.password.data)
-        new_user = User(username=form.username.data, password_hash=hashed_password)
+        new_profile = Profile()
+        new_user = User(username=form.username.data, password_hash=hashed_password, profile=new_profile)
         db.session.add(new_user)
         db.session.commit()
         flash("Account created successfully. Please log in.", "success")
@@ -24,7 +25,9 @@ def login():
     if form.validate_on_submit():
         user = User.query.filter_by(username=form.username.data).first()
         if user and check_password_hash(user.password_hash, form.password.data):
-            login_user(user)
+            from flask import session
+            session.permanent = True
+            login_user(user, remember=True)
             flash("Logged in successfully.", "success")
             return redirect(url_for('main.dashboard'))
         flash("Invalid username or password.", "danger")

app/routes/data.py

@@ -41,15 +41,23 @@ def manage_data():
 @login_required
 def export_data():
     import io
+    from flask import Response
 
+    def generate_csv():
+        """Stream CSV rows to avoid loading all readings into memory."""
+        # Write header
         output = io.StringIO()
         writer = csv.writer(output)
-
-    # Write CSV header
         writer.writerow(['Timestamp', 'Systolic', 'Diastolic', 'Heart Rate'])
+        yield output.getvalue()
+        output.seek(0)
+        output.truncate(0)
+
+        # Stream readings in chunks using yield_per
+        readings = Reading.query.filter_by(user_id=current_user.id).order_by(
+            Reading.timestamp
+        ).yield_per(500)
 
-    # Write user readings to the CSV
-    readings = Reading.query.filter_by(user_id=current_user.id).all()
         for reading in readings:
             writer.writerow([
                 reading.timestamp.strftime('%Y-%m-%d %H:%M:%S'),
@@ -57,15 +65,12 @@ def export_data():
                 reading.diastolic,
                 reading.heart_rate,
             ])
-
-    # Convert text to bytes for `send_file`
+            yield output.getvalue()
             output.seek(0)
-    response = io.BytesIO(output.getvalue().encode('utf-8'))
-    output.close()
+            output.truncate(0)
 
-    return send_file(
-        response,
+    return Response(
+        generate_csv(),
         mimetype='text/csv',
-        as_attachment=True,
-        download_name='readings.csv'
+        headers={'Content-Disposition': 'attachment; filename=readings.csv'}
     )

app/routes/main.py

@@ -10,6 +10,9 @@ from datetime import date, datetime, timedelta
 
 main = Blueprint('main', __name__)
 
+# Number of readings to show per page in list view
+PAGE_SIZE = 50
+
 @main.route('/', methods=['GET'])
 def landing():
     return redirect(url_for('main.dashboard')) if current_user.is_authenticated else render_template('landing.html')
@@ -29,26 +32,42 @@ def dashboard():
     start_date = request.form.get('start_date') or (first_reading and first_reading.strftime('%Y-%m-%d'))
     end_date = request.form.get('end_date') or (last_reading and last_reading.strftime('%Y-%m-%d'))
 
-    # Fetch filtered readings
-    readings = fetch_readings(current_user.id, start_date, end_date, user_tz)
+    # Pagination for list view
+    page = request.args.get('page', 1, type=int)
 
-    # Annotate readings with relative and localized timestamps
-    annotate_readings(readings, user_tz)
+    # Fetch paginated readings for the list view
+    paginated = fetch_readings_paginated(current_user.id, start_date, end_date, user_tz, page, PAGE_SIZE)
 
-    # Generate calendar view
-    week_view = generate_weekly_calendar(readings, datetime.now(user_tz), user_tz)
-    month_view = generate_monthly_calendar(readings, datetime.now(user_tz), user_tz)
+    # For calendar/graph/badges, fetch only current month + week readings (much smaller set)
+    now = datetime.now(user_tz)
+    month_start = now.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
+    month_start_utc = month_start.astimezone(utc)
+    calendar_readings = fetch_readings_for_range(current_user.id, month_start_utc)
 
-    # Calculate stats and badges
-    systolic_avg, diastolic_avg, heart_rate_avg = calculate_weekly_summary(readings)
-    badges = calculate_progress_badges(readings)
+    # Annotate all readings with relative and localized timestamps
+    annotate_readings(paginated.items, user_tz)
+    annotate_readings(calendar_readings, user_tz)
 
-    # Prepare graph data
-    graph_data = prepare_graph_data(readings)
+    # Build shared lookup for calendar views (single pass)
+    readings_by_day = build_readings_by_day(calendar_readings, user_tz)
+
+    # Generate calendar views from the shared lookup
+    week_view = generate_weekly_calendar(readings_by_day, now, user_tz)
+    month_view = generate_monthly_calendar(readings_by_day, now, user_tz)
+
+    # Calculate weekly averages via SQL (much faster than Python)
+    systolic_avg, diastolic_avg, heart_rate_avg = calculate_weekly_summary_sql(current_user.id)
+
+    # Badges from the paginated readings (or full set if needed)
+    badges = calculate_progress_badges(paginated.items)
+
+    # Prepare graph data from calendar readings (current month)
+    graph_data = prepare_graph_data(calendar_readings)
 
     return render_template(
         'dashboard.html',
-        readings=readings,
+        readings=paginated.items,
+        pagination=paginated,
         profile=current_user.profile,
         badges=badges,
         systolic_avg=systolic_avg,
@@ -58,7 +77,7 @@ def dashboard():
         start_date=start_date,
         end_date=end_date,
         month=month_view,
-        week = week_view,
+        week=week_view,
         date=date,
         **graph_data
     )
@@ -75,22 +94,32 @@ def get_reading_date_range(user_id, user_tz):
     return first, last
 
 
-def fetch_readings(user_id, start_date, end_date, user_tz):
-    """Retrieve readings filtered by date range."""
+def fetch_readings_paginated(user_id, start_date, end_date, user_tz, page, per_page):
+    """Retrieve paginated readings filtered by date range."""
     query = Reading.query.filter_by(user_id=user_id)
 
     if start_date and end_date:
-        # Convert dates to the user's timezone
         start_dt = user_tz.localize(datetime.strptime(start_date, '%Y-%m-%d')).astimezone(utc)
         end_dt = user_tz.localize(datetime.strptime(end_date, '%Y-%m-%d')).astimezone(utc) + timedelta(days=1) - timedelta(seconds=1)
-
         query = query.filter(
             Reading.timestamp >= start_dt,
             Reading.timestamp <= end_dt
         )
 
+    return query.order_by(Reading.timestamp.desc()).paginate(page=page, per_page=per_page, error_out=False)
+
+
+def fetch_readings_for_range(user_id, start_utc, end_utc=None):
+    """Fetch readings from a UTC start time onwards (for calendar/graph views)."""
+    query = Reading.query.filter(
+        Reading.user_id == user_id,
+        Reading.timestamp >= start_utc
+    )
+    if end_utc:
+        query = query.filter(Reading.timestamp <= end_utc)
     return query.order_by(Reading.timestamp.desc()).all()
 
+
 def annotate_readings(readings, user_tz):
     """Add relative and localized timestamps to readings."""
     now = datetime.utcnow()
@@ -98,30 +127,40 @@ def annotate_readings(readings, user_tz):
         reading.relative_timestamp = humanize.naturaltime(now - reading.timestamp)
         reading.local_timestamp = utc.localize(reading.timestamp).astimezone(user_tz)
 
-def calculate_weekly_summary(readings):
-    """Calculate averages for the past week."""
+
+def build_readings_by_day(readings, user_tz):
+    """Build a dict mapping dates to readings (single pass, shared by calendar views)."""
+    readings_by_day = defaultdict(list)
+    for reading in readings:
+        local_date = reading.local_timestamp.date() if hasattr(reading, 'local_timestamp') else utc.localize(reading.timestamp).astimezone(user_tz).date()
+        readings_by_day[local_date].append(reading)
+    return readings_by_day
+
+
+def calculate_weekly_summary_sql(user_id):
+    """Calculate weekly averages using SQL aggregation (single DB query)."""
     one_week_ago = datetime.utcnow() - timedelta(days=7)
-    weekly_readings = [r for r in readings if r.timestamp >= one_week_ago]
-    if weekly_readings:
-        return (
-            round(sum(r.systolic for r in weekly_readings) / len(weekly_readings), 1),
-            round(sum(r.diastolic for r in weekly_readings) / len(weekly_readings), 1),
-            round(sum(r.heart_rate for r in weekly_readings) / len(weekly_readings), 1),
-        )
+    result = db.session.query(
+        func.round(func.avg(Reading.systolic), 1).label('sys_avg'),
+        func.round(func.avg(Reading.diastolic), 1).label('dia_avg'),
+        func.round(func.avg(Reading.heart_rate), 1).label('hr_avg'),
+    ).filter(
+        Reading.user_id == user_id,
+        Reading.timestamp >= one_week_ago
+    ).first()
+
+    if result and result.sys_avg is not None:
+        return float(result.sys_avg), float(result.dia_avg), float(result.hr_avg)
     return 0, 0, 0
 
-def generate_monthly_calendar(readings, selected_date, local_tz):
-    """Generate a monthly calendar view."""
+
+def generate_monthly_calendar(readings_by_day, selected_date, local_tz):
+    """Generate a monthly calendar view from pre-built readings_by_day."""
     today = datetime.now(local_tz).date()
     first_day = selected_date.replace(day=1)
     start_date = first_day - timedelta(days=(first_day.weekday() + 1) % 7)
     end_date = start_date + timedelta(days=41)
 
-    readings_by_day = defaultdict(list)
-    for reading in readings:
-        local_date = reading.timestamp.astimezone(local_tz).date()
-        readings_by_day[local_date].append(reading)
-
     return [
         {
             'day': current_date.day,
@@ -132,23 +171,14 @@ def generate_monthly_calendar(readings, selected_date, local_tz):
         for current_date in (start_date + timedelta(days=i) for i in range((end_date - start_date).days + 1))
     ]
 
-def generate_weekly_calendar(readings, selected_date, local_tz):
-    """Generate a weekly calendar view."""
-    # Get the start of the week (Monday) and the end of the week (Sunday)
+def generate_weekly_calendar(readings_by_day, selected_date, local_tz):
+    """Generate a weekly calendar view from pre-built readings_by_day."""
     today = datetime.now(local_tz).date()
     start_of_week = selected_date - timedelta(days=selected_date.weekday())
-    end_of_week = start_of_week + timedelta(days=6)
 
-    # Group readings by day
-    readings_by_day = defaultdict(list)
-    for reading in readings:
-        local_date = reading.timestamp.astimezone(local_tz).date()
-        readings_by_day[local_date].append(reading)
-
-    # Build the weekly calendar view
     return [
         {
-            'date': current_date.strftime('%a, %b %d') ,
+            'date': current_date.strftime('%a, %b %d'),
             'is_today': current_date == today,
             'readings': readings_by_day.get(current_date.date(), []),
         }
@@ -167,22 +197,21 @@ def prepare_graph_data(readings):
 def calculate_progress_badges(readings):
     """Generate badges based on user activity and milestones."""
     now = datetime.utcnow().date()
-    streak_count, badges = 1, []
+    badges = []
 
     if not readings:
         return badges
 
-    sorted_readings = sorted(readings, key=lambda r: r.timestamp.date())
+    # Use reversed() instead of re-sorting — readings come in desc order from DB
+    sorted_readings = list(reversed(readings))
     streak_count = 1
     daily_streak = True
 
-    # Start with the first reading
     previous_date = sorted_readings[0].timestamp.date()
 
     for reading in sorted_readings[1:]:
         current_date = reading.timestamp.date()
 
-        # Check for consecutive daily streaks
         if (current_date - previous_date).days == 1:
             streak_count += 1
         elif (current_date - previous_date).days > 1:
@@ -190,7 +219,6 @@ def calculate_progress_badges(readings):
 
         previous_date = current_date
 
-    # Add streak badges
     if daily_streak and streak_count >= 1:
         badges.append(f"Current Streak: {streak_count} Days")
     if daily_streak and streak_count >= 7:

app/routes/user.py

@@ -67,7 +67,9 @@ def profile_image(user_id):
         response.headers.set('Content-Type', 'image/jpeg')
         response.headers.set('Cache-Control', 'public, max-age=86400')  # Cache for 1 day
         response.headers.set('ETag', str(hash(profile.profile_pic)))  # Unique ETag for the image
-        response.headers.set('Last-Modified', http_date(datetime.utcnow().timestamp()))
+        # Use actual profile update time instead of utcnow() which defeats caching
+        last_modified = profile.updated_at or datetime.utcnow()
+        response.headers.set('Last-Modified', http_date(last_modified.timestamp()))
 
         return response
     else:

app/static/css/tailwind.css

@@ -154,7 +154,7 @@ html,
   -o-tab-size: 4;
      tab-size: 4;
   /* 3 */
-  font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  font-family: Inter, sans-serif;
   /* 4 */
   font-feature-settings: normal;
   /* 5 */
@@ -588,6 +588,10 @@ video {
   }
 }
 
+.pointer-events-none {
+  pointer-events: none;
+}
+
 .visible {
   visibility: visible;
 }
@@ -608,6 +612,15 @@ video {
   position: relative;
 }
 
+.inset-0 {
+  inset: 0px;
+}
+
+.inset-y-0 {
+  top: 0px;
+  bottom: 0px;
+}
+
 .bottom-0 {
   bottom: 0px;
 }
@@ -644,10 +657,22 @@ video {
   top: 1.25rem;
 }
 
+.top-24 {
+  top: 6rem;
+}
+
+.left-0 {
+  left: 0px;
+}
+
 .z-10 {
   z-index: 10;
 }
 
+.z-50 {
+  z-index: 50;
+}
+
 .col-span-full {
   grid-column: 1 / -1;
 }
@@ -657,6 +682,10 @@ video {
   margin-right: auto;
 }
 
+.-mb-px {
+  margin-bottom: -1px;
+}
+
 .mb-2 {
   margin-bottom: 0.5rem;
 }
@@ -681,10 +710,6 @@ video {
   margin-right: 0.25rem;
 }
 
-.mr-2 {
-  margin-right: 0.5rem;
-}
-
 .mr-3 {
   margin-right: 0.75rem;
 }
@@ -717,12 +742,36 @@ video {
   margin-top: 1.5rem;
 }
 
-.-mb-px {
-  margin-bottom: -1px;
+.ml-4 {
+  margin-left: 1rem;
 }
 
-.ml-0 {
-  margin-left: 0px;
+.mb-12 {
+  margin-bottom: 3rem;
+}
+
+.mb-16 {
+  margin-bottom: 4rem;
+}
+
+.mb-3 {
+  margin-bottom: 0.75rem;
+}
+
+.mb-20 {
+  margin-bottom: 5rem;
+}
+
+.mb-5 {
+  margin-bottom: 1.25rem;
+}
+
+.mt-12 {
+  margin-top: 3rem;
+}
+
+.mt-8 {
+  margin-top: 2rem;
 }
 
 .block {
@@ -750,10 +799,18 @@ video {
   height: 1.5rem;
 }
 
+.h-10 {
+  height: 2.5rem;
+}
+
 .h-16 {
   height: 4rem;
 }
 
+.h-36 {
+  height: 9rem;
+}
+
 .h-4 {
   height: 1rem;
 }
@@ -774,12 +831,12 @@ video {
   height: 2rem;
 }
 
-.h-10 {
-  height: 2.5rem;
+.h-20 {
+  height: 5rem;
 }
 
-.h-36 {
-  height: 9rem;
+.h-2 {
+  height: 0.5rem;
 }
 
 .w-16 {
@@ -810,6 +867,18 @@ video {
   width: 100%;
 }
 
+.w-10 {
+  width: 2.5rem;
+}
+
+.w-20 {
+  width: 5rem;
+}
+
+.min-w-\[300px\] {
+  min-width: 300px;
+}
+
 .max-w-4xl {
   max-width: 56rem;
 }
@@ -826,6 +895,10 @@ video {
   max-width: 28rem;
 }
 
+.max-w-2xl {
+  max-width: 42rem;
+}
+
 .flex-1 {
   flex: 1 1 0%;
 }
@@ -862,10 +935,6 @@ video {
   flex-wrap: wrap;
 }
 
-.items-start {
-  align-items: flex-start;
-}
-
 .items-center {
   align-items: center;
 }
@@ -898,6 +967,10 @@ video {
   gap: 2rem;
 }
 
+.gap-10 {
+  gap: 2.5rem;
+}
+
 .space-x-2 > :not([hidden]) ~ :not([hidden]) {
   --tw-space-x-reverse: 0;
   margin-right: calc(0.5rem * var(--tw-space-x-reverse));
@@ -932,12 +1005,6 @@ video {
   overflow: hidden;
 }
 
-.truncate {
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
 .rounded {
   border-radius: 0.25rem;
 }
@@ -954,6 +1021,23 @@ video {
   border-radius: 0.375rem;
 }
 
+.rounded-xl {
+  border-radius: 0.75rem;
+}
+
+.rounded-2xl {
+  border-radius: 1rem;
+}
+
+.rounded-3xl {
+  border-radius: 1.5rem;
+}
+
+.rounded-b-3xl {
+  border-bottom-right-radius: 1.5rem;
+  border-bottom-left-radius: 1.5rem;
+}
+
 .border {
   border-width: 1px;
 }
@@ -979,19 +1063,39 @@ video {
   border-color: rgb(37 99 235 / var(--tw-border-opacity, 1));
 }
 
+.border-gray-200 {
+  --tw-border-opacity: 1;
+  border-color: rgb(229 231 235 / var(--tw-border-opacity, 1));
+}
+
 .border-gray-300 {
   --tw-border-opacity: 1;
   border-color: rgb(209 213 219 / var(--tw-border-opacity, 1));
 }
 
+.border-green-50 {
+  --tw-border-opacity: 1;
+  border-color: rgb(240 253 244 / var(--tw-border-opacity, 1));
+}
+
 .border-white {
   --tw-border-opacity: 1;
   border-color: rgb(255 255 255 / var(--tw-border-opacity, 1));
 }
 
-.border-green-50 {
+.border-gray-100 {
   --tw-border-opacity: 1;
-  border-color: rgb(240 253 244 / var(--tw-border-opacity, 1));
+  border-color: rgb(243 244 246 / var(--tw-border-opacity, 1));
+}
+
+.border-primary-500 {
+  --tw-border-opacity: 1;
+  border-color: rgb(20 184 166 / var(--tw-border-opacity, 1));
+}
+
+.border-primary-600 {
+  --tw-border-opacity: 1;
+  border-color: rgb(13 148 136 / var(--tw-border-opacity, 1));
 }
 
 .bg-blue-600 {
@@ -1009,6 +1113,11 @@ video {
   background-color: rgb(243 244 246 / var(--tw-bg-opacity, 1));
 }
 
+.bg-gray-200 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(229 231 235 / var(--tw-bg-opacity, 1));
+}
+
 .bg-gray-300 {
   --tw-bg-opacity: 1;
   background-color: rgb(209 213 219 / var(--tw-bg-opacity, 1));
@@ -1049,20 +1158,88 @@ video {
   background-color: rgb(255 255 255 / var(--tw-bg-opacity, 1));
 }
 
+.bg-primary-800 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(17 94 89 / var(--tw-bg-opacity, 1));
+}
+
+.bg-primary-900 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(19 78 74 / var(--tw-bg-opacity, 1));
+}
+
+.bg-primary-50 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(240 253 250 / var(--tw-bg-opacity, 1));
+}
+
+.bg-primary-700 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(15 118 110 / var(--tw-bg-opacity, 1));
+}
+
+.bg-white\/5 {
+  background-color: rgb(255 255 255 / 0.05);
+}
+
+.bg-primary-600 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(13 148 136 / var(--tw-bg-opacity, 1));
+}
+
+.bg-primary-100 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(204 251 241 / var(--tw-bg-opacity, 1));
+}
+
 .bg-gradient-to-r {
   background-image: linear-gradient(to right, var(--tw-gradient-stops));
 }
 
+.bg-gradient-to-br {
+  background-image: linear-gradient(to bottom right, var(--tw-gradient-stops));
+}
+
 .from-blue-500 {
   --tw-gradient-from: #3b82f6 var(--tw-gradient-from-position);
   --tw-gradient-to: rgb(59 130 246 / 0) var(--tw-gradient-to-position);
   --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to);
 }
 
+.from-primary-600 {
+  --tw-gradient-from: #0d9488 var(--tw-gradient-from-position);
+  --tw-gradient-to: rgb(13 148 136 / 0) var(--tw-gradient-to-position);
+  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to);
+}
+
+.from-primary-400 {
+  --tw-gradient-from: #2dd4bf var(--tw-gradient-from-position);
+  --tw-gradient-to: rgb(45 212 191 / 0) var(--tw-gradient-to-position);
+  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to);
+}
+
+.from-primary-500 {
+  --tw-gradient-from: #14b8a6 var(--tw-gradient-from-position);
+  --tw-gradient-to: rgb(20 184 166 / 0) var(--tw-gradient-to-position);
+  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to);
+}
+
 .to-blue-700 {
   --tw-gradient-to: #1d4ed8 var(--tw-gradient-to-position);
 }
 
+.to-primary-800 {
+  --tw-gradient-to: #115e59 var(--tw-gradient-to-position);
+}
+
+.to-primary-600 {
+  --tw-gradient-to: #0d9488 var(--tw-gradient-to-position);
+}
+
+.to-primary-700 {
+  --tw-gradient-to: #0f766e var(--tw-gradient-to-position);
+}
+
 .fill-current {
   fill: currentColor;
 }
@@ -1100,11 +1277,20 @@ video {
   padding: 2rem;
 }
 
+.p-10 {
+  padding: 2.5rem;
+}
+
 .px-2 {
   padding-left: 0.5rem;
   padding-right: 0.5rem;
 }
 
+.px-3 {
+  padding-left: 0.75rem;
+  padding-right: 0.75rem;
+}
+
 .px-4 {
   padding-left: 1rem;
   padding-right: 1rem;
@@ -1120,6 +1306,11 @@ video {
   padding-right: 2rem;
 }
 
+.py-1 {
+  padding-top: 0.25rem;
+  padding-bottom: 0.25rem;
+}
+
 .py-16 {
   padding-top: 4rem;
   padding-bottom: 4rem;
@@ -1145,28 +1336,19 @@ video {
   padding-bottom: 1rem;
 }
 
-.px-0 {
-  padding-left: 0px;
-  padding-right: 0px;
-}
-
-.py-1 {
-  padding-top: 0.25rem;
-  padding-bottom: 0.25rem;
-}
-
-.pl-2 {
-  padding-left: 0.5rem;
-}
-
-.pt-6 {
-  padding-top: 1.5rem;
+.py-24 {
+  padding-top: 6rem;
+  padding-bottom: 6rem;
 }
 
 .pl-1 {
   padding-left: 0.25rem;
 }
 
+.pl-2 {
+  padding-left: 0.5rem;
+}
+
 .pr-2 {
   padding-right: 0.5rem;
 }
@@ -1175,14 +1357,34 @@ video {
   padding-top: 0.5rem;
 }
 
-.text-left {
-  text-align: left;
+.pt-6 {
+  padding-top: 1.5rem;
+}
+
+.pb-20 {
+  padding-bottom: 5rem;
+}
+
+.pt-24 {
+  padding-top: 6rem;
+}
+
+.pl-11 {
+  padding-left: 2.75rem;
+}
+
+.pl-4 {
+  padding-left: 1rem;
 }
 
 .text-center {
   text-align: center;
 }
 
+.font-sans {
+  font-family: Inter, sans-serif;
+}
+
 .text-2xl {
   font-size: 1.5rem;
   line-height: 2rem;
@@ -1223,6 +1425,11 @@ video {
   line-height: 1rem;
 }
 
+.text-5xl {
+  font-size: 3rem;
+  line-height: 1;
+}
+
 .font-bold {
   font-weight: 700;
 }
@@ -1235,12 +1442,24 @@ video {
   font-weight: 600;
 }
 
-.font-light {
-  font-weight: 300;
+.font-extrabold {
+  font-weight: 800;
 }
 
-.leading-none {
-  line-height: 1;
+.uppercase {
+  text-transform: uppercase;
+}
+
+.leading-relaxed {
+  line-height: 1.625;
+}
+
+.tracking-tight {
+  letter-spacing: -0.025em;
+}
+
+.tracking-wider {
+  letter-spacing: 0.05em;
 }
 
 .text-blue-600 {
@@ -1298,10 +1517,40 @@ video {
   color: rgb(255 255 255 / var(--tw-text-opacity, 1));
 }
 
+.text-gray-900 {
+  --tw-text-opacity: 1;
+  color: rgb(17 24 39 / var(--tw-text-opacity, 1));
+}
+
+.text-primary-50 {
+  --tw-text-opacity: 1;
+  color: rgb(240 253 250 / var(--tw-text-opacity, 1));
+}
+
+.text-primary-600 {
+  --tw-text-opacity: 1;
+  color: rgb(13 148 136 / var(--tw-text-opacity, 1));
+}
+
+.text-primary-700 {
+  --tw-text-opacity: 1;
+  color: rgb(15 118 110 / var(--tw-text-opacity, 1));
+}
+
+.text-primary-200 {
+  --tw-text-opacity: 1;
+  color: rgb(153 246 228 / var(--tw-text-opacity, 1));
+}
+
 .no-underline {
   text-decoration-line: none;
 }
 
+.antialiased {
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
 .shadow {
   --tw-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
   --tw-shadow-colored: 0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);
@@ -1326,6 +1575,24 @@ video {
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
 }
 
+.shadow-xl {
+  --tw-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.shadow-inner {
+  --tw-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
+  --tw-shadow-colored: inset 0 2px 4px 0 var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.shadow-2xl {
+  --tw-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
+  --tw-shadow-colored: 0 25px 50px -12px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
 .transition {
   transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, -webkit-backdrop-filter;
   transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter;
@@ -1340,6 +1607,37 @@ video {
   transition-duration: 150ms;
 }
 
+.transition-colors {
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  transition-duration: 150ms;
+}
+
+.transition-all {
+  transition-property: all;
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  transition-duration: 150ms;
+}
+
+.duration-300 {
+  transition-duration: 300ms;
+}
+
+.hover\:-translate-y-1:hover {
+  --tw-translate-y: -0.25rem;
+  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
+}
+
+.hover\:-translate-y-2:hover {
+  --tw-translate-y: -0.5rem;
+  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
+}
+
+.hover\:-translate-y-0\.5:hover {
+  --tw-translate-y: -0.125rem;
+  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
+}
+
 .hover\:bg-blue-700:hover {
   --tw-bg-opacity: 1;
   background-color: rgb(29 78 216 / var(--tw-bg-opacity, 1));
@@ -1355,6 +1653,11 @@ video {
   background-color: rgb(229 231 235 / var(--tw-bg-opacity, 1));
 }
 
+.hover\:bg-gray-300:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(209 213 219 / var(--tw-bg-opacity, 1));
+}
+
 .hover\:bg-gray-400:hover {
   --tw-bg-opacity: 1;
   background-color: rgb(156 163 175 / var(--tw-bg-opacity, 1));
@@ -1375,6 +1678,21 @@ video {
   background-color: rgb(185 28 28 / var(--tw-bg-opacity, 1));
 }
 
+.hover\:bg-gray-50:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(249 250 251 / var(--tw-bg-opacity, 1));
+}
+
+.hover\:bg-primary-600:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(13 148 136 / var(--tw-bg-opacity, 1));
+}
+
+.hover\:bg-primary-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(15 118 110 / var(--tw-bg-opacity, 1));
+}
+
 .hover\:text-gray-200:hover {
   --tw-text-opacity: 1;
   color: rgb(229 231 235 / var(--tw-text-opacity, 1));
@@ -1405,6 +1723,11 @@ video {
   color: rgb(255 255 255 / var(--tw-text-opacity, 1));
 }
 
+.hover\:text-primary-800:hover {
+  --tw-text-opacity: 1;
+  color: rgb(17 94 89 / var(--tw-text-opacity, 1));
+}
+
 .hover\:underline:hover {
   text-decoration-line: underline;
 }
@@ -1419,11 +1742,33 @@ video {
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
 }
 
+.hover\:shadow-2xl:hover {
+  --tw-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
+  --tw-shadow-colored: 0 25px 50px -12px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.hover\:shadow-xl:hover {
+  --tw-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
 .focus\:border-blue-500:focus {
   --tw-border-opacity: 1;
   border-color: rgb(59 130 246 / var(--tw-border-opacity, 1));
 }
 
+.focus\:border-primary-500:focus {
+  --tw-border-opacity: 1;
+  border-color: rgb(20 184 166 / var(--tw-border-opacity, 1));
+}
+
+.focus\:bg-white:focus {
+  --tw-bg-opacity: 1;
+  background-color: rgb(255 255 255 / var(--tw-bg-opacity, 1));
+}
+
 .focus\:text-white:focus {
   --tw-text-opacity: 1;
   color: rgb(255 255 255 / var(--tw-text-opacity, 1));
@@ -1450,6 +1795,11 @@ video {
   --tw-ring-color: rgb(34 197 94 / var(--tw-ring-opacity, 1));
 }
 
+.focus\:ring-primary-500:focus {
+  --tw-ring-opacity: 1;
+  --tw-ring-color: rgb(20 184 166 / var(--tw-ring-opacity, 1));
+}
+
 .group:hover .group-hover\:scale-105 {
   --tw-scale-x: 1.05;
   --tw-scale-y: 1.05;
@@ -1461,10 +1811,6 @@ video {
 }
 
 @media (min-width: 640px) {
-  .sm\:ml-0\.5 {
-    margin-left: 0.125rem;
-  }
-
   .sm\:block {
     display: block;
   }
@@ -1477,17 +1823,24 @@ video {
     height: 10rem;
   }
 
-  .sm\:px-0\.5 {
-    padding-left: 0.125rem;
-    padding-right: 0.125rem;
+  .sm\:flex-row {
+    flex-direction: row;
+  }
+
+  .sm\:space-x-6 > :not([hidden]) ~ :not([hidden]) {
+    --tw-space-x-reverse: 0;
+    margin-right: calc(1.5rem * var(--tw-space-x-reverse));
+    margin-left: calc(1.5rem * calc(1 - var(--tw-space-x-reverse)));
+  }
+
+  .sm\:space-y-0 > :not([hidden]) ~ :not([hidden]) {
+    --tw-space-y-reverse: 0;
+    margin-top: calc(0px * calc(1 - var(--tw-space-y-reverse)));
+    margin-bottom: calc(0px * var(--tw-space-y-reverse));
   }
 }
 
 @media (min-width: 768px) {
-  .md\:ml-2 {
-    margin-left: 0.5rem;
-  }
-
   .md\:block {
     display: block;
   }
@@ -1496,8 +1849,8 @@ video {
     display: none;
   }
 
-  .md\:w-auto {
-    width: auto;
+  .md\:w-1\/3 {
+    width: 33.333333%;
   }
 
   .md\:grid-cols-2 {
@@ -1516,17 +1869,18 @@ video {
     padding: 1rem;
   }
 
-  .md\:px-0\.5 {
-    padding-left: 0.125rem;
-    padding-right: 0.125rem;
+  .md\:text-2xl {
+    font-size: 1.5rem;
+    line-height: 2rem;
+  }
+
+  .md\:text-6xl {
+    font-size: 3.75rem;
+    line-height: 1;
   }
 }
 
 @media (min-width: 1024px) {
-  .lg\:ml-2 {
-    margin-left: 0.5rem;
-  }
-
   .lg\:block {
     display: block;
   }
@@ -1551,11 +1905,6 @@ video {
     align-items: center;
   }
 
-  .lg\:px-0\.5 {
-    padding-left: 0.125rem;
-    padding-right: 0.125rem;
-  }
-
   .lg\:pt-0 {
     padding-top: 0px;
   }
@@ -1569,8 +1918,4 @@ video {
   .xl\:hidden {
     display: none;
   }
-
-  .xl\:flex-row {
-    flex-direction: row;
-  }
 }

app/static/images/favicon.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="#14b8a6">
+  <path d="M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z" />
+</svg>

app/templates/_layout.html

@@ -5,17 +5,17 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}BP Tracker{% endblock %}</title>
-    <link rel="icon" type="image/png" sizes="32x32" href="{{ url_for('static', filename='images/favicon-32x32.png') }}">
-    <link rel="icon" type="image/png" sizes="16x16" href="{{ url_for('static', filename='images/favicon-32x32.png') }}">
+    <link rel="icon" type="image/svg+xml" sizes="any" href="{{ url_for('static', filename='images/favicon.svg') }}">
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
     <link href="/static/css/tailwind.css" rel="stylesheet">
     <script src="/static/js/alpine.min.js" defer></script>
     <script src="/static/js/turbolinks.min.js"></script>
 </head>
 
-<body class="bg-gray-100 text-gray-800">
-    <nav class="flex items-center justify-between flex-wrap p-6 fixed w-full z-10 top-0" x-data="{ isOpen: false }"
-        @keydown.escape="isOpen = false" @click.away="isOpen = false"
-        :class="{ 'shadow-lg bg-indigo-900' : isOpen , 'bg-gray-800' : !isOpen}">
+<body class="bg-gray-50 text-gray-800 font-sans antialiased">
+    <nav class="flex items-center justify-between flex-wrap p-6 fixed w-full z-10 top-0 transition-colors duration-300 shadow-md"
+        x-data="{ isOpen: false }" @keydown.escape="isOpen = false" @click.away="isOpen = false"
+        :class="{ 'bg-primary-900' : isOpen , 'bg-primary-800' : !isOpen}">
         <!--Logo etc-->
         <div class="flex items-center flex-shrink-0 text-white mr-6">
             <a class="text-white no-underline hover:text-white hover:no-underline" href="/">
@@ -45,7 +45,7 @@
                     {% if request.path == url_for('main.dashboard') %}
                         text-white
                     {% else %}
-                        text-gray-600 hover:text-gray-200 hover:text-underline
+                        text-primary-200 hover:text-white font-medium transition-colors
                     {% endif %}" href="{{ url_for('main.dashboard') }}">Dashboard
                     </a>
                 </li>
@@ -54,12 +54,12 @@
                     {% if request.path == url_for('data.manage_data') %}
                         text-white
                     {% else %}
-                        text-gray-600 hover:text-gray-200 hover:text-underline
+                        text-primary-200 hover:text-white font-medium transition-colors
                     {% endif %}" href="{{ url_for('data.manage_data') }}">Data
                     </a>
                 </li>
                 <li class="mr-3">
-                    <a class="flex items-center gap-2 text-gray-600 no-underline hover:text-gray-200 hover:text-underline py-2 px-4"
+                    <a class="flex items-center gap-2 text-primary-200 no-underline hover:text-white font-medium transition-colors py-2 px-4"
                         href="{{ url_for('user.profile') }}">
                         {% if current_user.profile and current_user.profile.profile_pic %}
                         <img src="{{ url_for('user.profile_image', user_id=current_user.id) }}" alt="Profile Picture"
@@ -67,7 +67,7 @@
                         {% else %}
                         <!-- Default SVG Icon -->
                         <div
-                            class="w-8 h-8 bg-gray-300 rounded-full flex items-center justify-center border-2 border-white">
+                            class="w-8 h-8 bg-primary-100 rounded-full flex items-center justify-center border-2 border-white">
                             <svg xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="w-5 h-5 text-gray-600"
                                 viewBox="0 0 24 24">
                                 <path
@@ -79,7 +79,7 @@
                         {% if request.path == url_for('user.profile') %}
                             text-white
                         {% else %}
-                            text-gray-600 hover:text-gray-200 hover:text-underline
+                            text-primary-200 hover:text-white font-medium transition-colors
                         {% endif %}">Profile</span>
                     </a>
                 </li>
@@ -88,7 +88,7 @@
                     {% if request.path == url_for('auth.logout') %}
                         text-white
                     {% else %}
-                        text-gray-600 hover:text-gray-200 hover:text-underline
+                        text-primary-200 hover:text-white font-medium transition-colors
                     {% endif %}" href="{{ url_for('auth.logout') }}">Logout
                     </a>
                 </li>
@@ -98,7 +98,7 @@
                     {% if request.path == url_for('auth.login') %}
                         text-white
                     {% else %}
-                        text-gray-600 hover:text-gray-200 hover:text-underline
+                        text-primary-200 hover:text-white font-medium transition-colors
                     {% endif %}" href="{{ url_for('auth.login') }}">Login
                     </a>
                 </li>
@@ -107,7 +107,7 @@
                     {% if request.path == url_for('auth.signup') %}
                         text-white
                     {% else %}
-                        text-gray-600 hover:text-gray-200 hover:text-underline
+                        text-primary-200 hover:text-white font-medium transition-colors
                     {% endif %}" href="{{ url_for('auth.signup') }}">Signup
                     </a>
                 </li>
@@ -118,12 +118,13 @@
 
     {% with messages = get_flashed_messages(with_categories=True) %}
     {% if messages %}
-    <div class="container mx-auto mt-4 space-y-4">
+    <div class="fixed top-24 right-4 z-50 space-y-4">
         {% for category, message in messages %}
-        <div class="flex items-center justify-between p-4 rounded-lg shadow text-white bg-{{ 'red' if category == 'danger' else 'green' }}-500"
+        <div class="flex items-center justify-between p-4 rounded-xl shadow-xl text-white bg-{{ 'red' if category == 'danger' else 'primary' }}-500 min-w-[300px]"
             x-data="{ visible: true }" x-show="visible" x-transition.duration.300ms>
-            <span>{{ message }}</span>
-            <button @click="visible = false" class="text-xl font-bold">&times;</button>
+            <span class="font-medium">{{ message }}</span>
+            <button @click="visible = false"
+                class="text-2xl font-bold ml-4 hover:text-gray-200 transition-colors">&times;</button>
         </div>
         {% endfor %}
     </div>

app/templates/auth/login.html

@@ -1,32 +1,88 @@
 {% extends "_layout.html" %}
 {% block content %}
-<div class="max-w-md mx-auto bg-white p-6 rounded-lg shadow-md">
-    <h1 class="text-2xl font-bold text-center mb-4">Login</h1>
+<div class="max-w-md mx-auto mt-12 mb-20">
+    <div class="bg-white p-10 rounded-3xl shadow-2xl border border-gray-100 relative overflow-hidden">
+        <!-- Decorative background element -->
+        <div class="absolute top-0 left-0 w-full h-2 bg-gradient-to-r from-primary-400 to-primary-600"></div>
+
+        <h1 class="text-3xl font-extrabold text-center mb-2 text-gray-900">Welcome Back</h1>
+        <p class="text-center text-gray-500 mb-8">Please enter your details to sign in.</p>
+
         <form method="POST" action="{{ url_for('auth.login') }}" novalidate>
             {{ form.hidden_tag() }}
 
             <!-- Username Field -->
-        <div class="mb-4">
-            {{ form.username.label(class="block text-sm font-medium text-gray-700") }}
-            {{ form.username(class="w-full p-2 border rounded focus:outline-none focus:ring-2 focus:ring-blue-500") }}
+            <div class="mb-5">
+                {{ form.username.label(class="block text-sm font-semibold text-gray-700 mb-2") }}
+                <div class="relative">
+                    <div class="absolute inset-y-0 left-0 pl-4 flex items-center pointer-events-none">
+                        <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-gray-400" viewBox="0 0 20 20"
+                            fill="currentColor">
+                            <path fill-rule="evenodd" d="M10 9a3 3 0 100-6 3 3 0 000 6zm-7 9a7 7 0 1114 0H3z"
+                                clip-rule="evenodd" />
+                        </svg>
+                    </div>
+                    {{ form.username(class="w-full pl-11 p-3 border border-gray-300 rounded-xl focus:outline-none
+                    focus:ring-2 focus:ring-primary-500 focus:border-primary-500 transition-all shadow-sm bg-gray-50
+                    focus:bg-white") }}
+                </div>
                 {% for error in form.username.errors %}
-            <p class="text-sm text-red-600 mt-1">{{ error }}</p>
+                <p class="text-sm text-red-500 mt-2 font-medium flex items-center">
+                    <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
+                        <path fill-rule="evenodd"
+                            d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7 4a1 1 0 11-2 0 1 1 0 012 0zm-1-9a1 1 0 00-1 1v4a1 1 0 102 0V6a1 1 0 00-1-1z"
+                            clip-rule="evenodd"></path>
+                    </svg>
+                    {{ error }}
+                </p>
                 {% endfor %}
             </div>
 
             <!-- Password Field -->
-        <div class="mb-4">
-            {{ form.password.label(class="block text-sm font-medium text-gray-700") }}
-            {{ form.password(class="w-full p-2 border rounded focus:outline-none focus:ring-2 focus:ring-blue-500") }}
+            <div class="mb-5">
+                <div class="flex justify-between items-center mb-2">
+                    {{ form.password.label(class="block text-sm font-semibold text-gray-700") }}
+                    <a href="#"
+                        class="text-sm text-primary-600 hover:text-primary-800 hover:underline font-medium">Forgot
+                        Password?</a>
+                </div>
+                <div class="relative">
+                    <div class="absolute inset-y-0 left-0 pl-4 flex items-center pointer-events-none">
+                        <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-gray-400" viewBox="0 0 20 20"
+                            fill="currentColor">
+                            <path fill-rule="evenodd"
+                                d="M3 3a1 1 0 011 1v12a1 1 0 11-2 0V4a1 1 0 011-1zm7.707 3.293a1 1 0 010 1.414L9.414 9H17a1 1 0 110 2H9.414l1.293 1.293a1 1 0 01-1.414 1.414l-3-3a1 1 0 010-1.414l3-3a1 1 0 011.414 0z"
+                                clip-rule="evenodd" />
+                        </svg>
+                    </div>
+                    {{ form.password(class="w-full pl-11 p-3 border border-gray-300 rounded-xl focus:outline-none
+                    focus:ring-2 focus:ring-primary-500 focus:border-primary-500 transition-all shadow-sm bg-gray-50
+                    focus:bg-white") }}
+                </div>
                 {% for error in form.password.errors %}
-            <p class="text-sm text-red-600 mt-1">{{ error }}</p>
+                <p class="text-sm text-red-500 mt-2 font-medium flex items-center">
+                    <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
+                        <path fill-rule="evenodd"
+                            d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7 4a1 1 0 11-2 0 1 1 0 012 0zm-1-9a1 1 0 00-1 1v4a1 1 0 102 0V6a1 1 0 00-1-1z"
+                            clip-rule="evenodd"></path>
+                    </svg>
+                    {{ error }}
+                </p>
                 {% endfor %}
             </div>
 
             <!-- Submit Button -->
-        <div>
-            {{ form.submit(class="w-full bg-blue-600 text-white py-2 rounded hover:bg-blue-700") }}
+            <div class="mt-8">
+                {{ form.submit(class="w-full bg-primary-600 hover:bg-primary-700 text-white font-bold py-3 rounded-xl
+                shadow-lg hover:shadow-xl transition-all duration-300 transform hover:-translate-y-0.5 cursor-pointer")
+                }}
             </div>
+
+            <p class="text-center mt-6 text-gray-600">
+                Don't have an account? <a href="{{ url_for('auth.signup') }}"
+                    class="text-primary-600 hover:text-primary-800 font-bold hover:underline">Sign up</a>
+            </p>
         </form>
+    </div>
 </div>
 {% endblock %}

app/templates/auth/signup.html

@@ -1,42 +1,111 @@
 {% extends "_layout.html" %}
 {% block content %}
-<div class="max-w-md mx-auto bg-white p-6 rounded-lg shadow-md">
-    <h1 class="text-2xl font-bold text-center mb-4">Sign Up</h1>
+<div class="max-w-md mx-auto mt-12 mb-20">
+    <div class="bg-white p-10 rounded-3xl shadow-2xl border border-gray-100 relative overflow-hidden">
+        <!-- Decorative background element -->
+        <div class="absolute top-0 left-0 w-full h-2 bg-gradient-to-r from-primary-400 to-primary-600"></div>
+
+        <h1 class="text-3xl font-extrabold text-center mb-2 text-gray-900">Create Account</h1>
+        <p class="text-center text-gray-500 mb-8">Join us to start tracking your health.</p>
+
         <form method="POST" action="{{ url_for('auth.signup') }}" novalidate>
             {{ form.hidden_tag() }}
 
             <!-- Username Field -->
-        <div class="mb-4">
-            {{ form.username.label(class="block text-sm font-medium text-gray-700") }}
-            {{ form.username(class="w-full p-2 border rounded focus:outline-none focus:ring-2 focus:ring-blue-500") }}
+            <div class="mb-5">
+                {{ form.username.label(class="block text-sm font-semibold text-gray-700 mb-2") }}
+                <div class="relative">
+                    <div class="absolute inset-y-0 left-0 pl-4 flex items-center pointer-events-none">
+                        <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-gray-400" viewBox="0 0 20 20"
+                            fill="currentColor">
+                            <path fill-rule="evenodd" d="M10 9a3 3 0 100-6 3 3 0 000 6zm-7 9a7 7 0 1114 0H3z"
+                                clip-rule="evenodd" />
+                        </svg>
+                    </div>
+                    {{ form.username(class="w-full pl-11 p-3 border border-gray-300 rounded-xl focus:outline-none
+                    focus:ring-2 focus:ring-primary-500 focus:border-primary-500 transition-all shadow-sm bg-gray-50
+                    focus:bg-white") }}
+                </div>
                 {% for error in form.username.errors %}
-            <p class="text-sm text-red-600 mt-1">{{ error }}</p>
+                <p class="text-sm text-red-500 mt-2 font-medium flex items-center">
+                    <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
+                        <path fill-rule="evenodd"
+                            d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7 4a1 1 0 11-2 0 1 1 0 012 0zm-1-9a1 1 0 00-1 1v4a1 1 0 102 0V6a1 1 0 00-1-1z"
+                            clip-rule="evenodd"></path>
+                    </svg>
+                    {{ error }}
+                </p>
                 {% endfor %}
             </div>
 
             <!-- Password Field -->
-        <div class="mb-4">
-            {{ form.password.label(class="block text-sm font-medium text-gray-700") }}
-            {{ form.password(class="w-full p-2 border rounded focus:outline-none focus:ring-2 focus:ring-blue-500") }}
+            <div class="mb-5">
+                {{ form.password.label(class="block text-sm font-semibold text-gray-700 mb-2") }}
+                <div class="relative">
+                    <div class="absolute inset-y-0 left-0 pl-4 flex items-center pointer-events-none">
+                        <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-gray-400" viewBox="0 0 20 20"
+                            fill="currentColor">
+                            <path fill-rule="evenodd"
+                                d="M3 3a1 1 0 011 1v12a1 1 0 11-2 0V4a1 1 0 011-1zm7.707 3.293a1 1 0 010 1.414L9.414 9H17a1 1 0 110 2H9.414l1.293 1.293a1 1 0 01-1.414 1.414l-3-3a1 1 0 010-1.414l3-3a1 1 0 011.414 0z"
+                                clip-rule="evenodd" />
+                        </svg>
+                    </div>
+                    {{ form.password(class="w-full pl-11 p-3 border border-gray-300 rounded-xl focus:outline-none
+                    focus:ring-2 focus:ring-primary-500 focus:border-primary-500 transition-all shadow-sm bg-gray-50
+                    focus:bg-white") }}
+                </div>
                 {% for error in form.password.errors %}
-            <p class="text-sm text-red-600 mt-1">{{ error }}</p>
+                <p class="text-sm text-red-500 mt-2 font-medium flex items-center">
+                    <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
+                        <path fill-rule="evenodd"
+                            d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7 4a1 1 0 11-2 0 1 1 0 012 0zm-1-9a1 1 0 00-1 1v4a1 1 0 102 0V6a1 1 0 00-1-1z"
+                            clip-rule="evenodd"></path>
+                    </svg>
+                    {{ error }}
+                </p>
                 {% endfor %}
             </div>
 
             <!-- Confirm Password Field -->
-        <div class="mb-4">
-            {{ form.confirm_password.label(class="block text-sm font-medium text-gray-700") }}
-            {{ form.confirm_password(class="w-full p-2 border rounded focus:outline-none focus:ring-2
-            focus:ring-blue-500") }}
+            <div class="mb-6">
+                {{ form.confirm_password.label(class="block text-sm font-semibold text-gray-700 mb-2") }}
+                <div class="relative">
+                    <div class="absolute inset-y-0 left-0 pl-4 flex items-center pointer-events-none">
+                        <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-gray-400" viewBox="0 0 20 20"
+                            fill="currentColor">
+                            <path fill-rule="evenodd"
+                                d="M3 3a1 1 0 011 1v12a1 1 0 11-2 0V4a1 1 0 011-1zm7.707 3.293a1 1 0 010 1.414L9.414 9H17a1 1 0 110 2H9.414l1.293 1.293a1 1 0 01-1.414 1.414l-3-3a1 1 0 010-1.414l3-3a1 1 0 011.414 0z"
+                                clip-rule="evenodd" />
+                        </svg>
+                    </div>
+                    {{ form.confirm_password(class="w-full pl-11 p-3 border border-gray-300 rounded-xl
+                    focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-primary-500 transition-all
+                    shadow-sm bg-gray-50 focus:bg-white") }}
+                </div>
                 {% for error in form.confirm_password.errors %}
-            <p class="text-sm text-red-600 mt-1">{{ error }}</p>
+                <p class="text-sm text-red-500 mt-2 font-medium flex items-center">
+                    <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
+                        <path fill-rule="evenodd"
+                            d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7 4a1 1 0 11-2 0 1 1 0 012 0zm-1-9a1 1 0 00-1 1v4a1 1 0 102 0V6a1 1 0 00-1-1z"
+                            clip-rule="evenodd"></path>
+                    </svg>
+                    {{ error }}
+                </p>
                 {% endfor %}
             </div>
 
             <!-- Submit Button -->
-        <div>
-            {{ form.submit(class="w-full bg-blue-600 text-white py-2 rounded hover:bg-blue-700") }}
+            <div class="mt-8">
+                {{ form.submit(class="w-full bg-primary-600 hover:bg-primary-700 text-white font-bold py-3 rounded-xl
+                shadow-lg hover:shadow-xl transition-all duration-300 transform hover:-translate-y-0.5 cursor-pointer")
+                }}
             </div>
+
+            <p class="text-center mt-6 text-gray-600">
+                Already have an account? <a href="{{ url_for('auth.login') }}"
+                    class="text-primary-600 hover:text-primary-800 font-bold hover:underline">Log in</a>
+            </p>
         </form>
+    </div>
 </div>
 {% endblock %}

app/templates/dashboard.html

@@ -1,18 +1,17 @@
 {% extends "_layout.html" %}
 {% block content %}
 <div class="max-w-5xl mx-auto p-4 space-y-6">
-
     <!-- Header Section with "Add New Reading" Button -->
     <div class="flex justify-between items-center">
         <h1 class="text-2xl font-bold text-gray-800">Dashboard</h1>
         <a rel="prefetch" href="{{ url_for('reading.add_reading') }}"
-            class="bg-blue-600 text-white px-4 py-2 rounded shadow hover:bg-blue-700">
+            class="bg-primary-600 text-white px-4 py-2 rounded shadow hover:bg-primary-700">
             + Add New Reading
         </a>
     </div>
 
     <!-- Weekly Summary -->
-    <div class="bg-gradient-to-r from-blue-500 to-blue-700 text-white p-6 rounded-lg shadow-md">
+    <div class="bg-gradient-to-r from-primary-500 to-primary-700 text-white p-6 rounded-xl shadow-md">
         <h3 class="text-lg font-bold">Weekly Summary</h3>
         <div class="flex justify-between mt-4">
             <div>
@@ -32,7 +31,6 @@
 
     <!-- Progress Badges -->
     <div>
-        <h3 class="text-lg font-bold text-gray-800 mb-2">Progress Badges</h3>
         <div class="flex flex-wrap gap-4">
             {% for badge in badges %}
             <div class="bg-green-100 text-green-800 px-4 py-2 rounded shadow text-sm font-medium">
@@ -42,56 +40,63 @@
         </div>
     </div>
 
-    <div x-data="{ open: {{ 'true' if request.method == 'POST' else 'false' }} }"
-        class="p-4 bg-white rounded-lg shadow-md">
-        <!-- Collapsible Header -->
-        <div class="flex justify-between items-center">
-            <h3 class="text-lg font-bold text-gray-800">Filter Readings</h3>
-            <button @click="open = !open" class="text-blue-600 hover:underline flex items-center">
+    <div x-data="{ open: {{ 'true' if request.method == 'POST' else 'false' }} }" class="relative">
+        <!-- Compact Icon -->
+        <button @click="open = !open"
+            class="bg-primary-600 text-white p-3 rounded-full shadow-lg focus:outline-none hover:bg-primary-700">
             <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2"
-                    stroke="currentColor" class="w-4 h-4 mr-2">
+                stroke="currentColor" class="w-6 h-6">
                 <path x-show="!open" stroke-linecap="round" stroke-linejoin="round" d="M6 9l6 6 6-6" />
                 <path x-show="open" x-cloak stroke-linecap="round" stroke-linejoin="round" d="M18 15l-6-6-6 6" />
             </svg>
-                <span x-show="!open">Show Filters</span>
-                <span x-show="open" x-cloak>Hide Filters</span>
         </button>
-        </div>
 
-        <!-- Collapsible Content -->
-        <form method="POST" action="{{ url_for('main.dashboard') }}" x-show="open" x-transition.duration.50ms
-            class="mt-4">
-            <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+        <!-- Collapsible Filter Form -->
+        <div x-show="open" x-transition.duration.300ms
+            class="w-full md:w-1/3 bg-white p-6 rounded-xl shadow-lg border border-gray-200">
+            <div class="flex justify-between items-center mb-4">
+                <h3 class="text-lg font-bold text-gray-800">Filter Readings</h3>
+            </div>
+            <form method="POST" action="{{ url_for('main.dashboard') }}" class="space-y-4">
+                <!-- Start Date -->
                 <div>
                     <label for="start_date" class="block text-sm font-medium text-gray-700">Start Date</label>
-                    <input type="date" name="start_date" id="start_date" value="{{ start_date or '' }}"
-                        class="w-full p-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                    <input type="date" name="start_date" id="start_date"
+                        class="w-full p-3 border border-gray-300 rounded-xl shadow-sm focus:outline-none focus:ring-2 focus:ring-primary-500">
                 </div>
+
+                <!-- End Date -->
                 <div>
                     <label for="end_date" class="block text-sm font-medium text-gray-700">End Date</label>
-                    <input type="date" name="end_date" id="end_date" value="{{ end_date or '' }}"
-                        class="w-full p-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                    <input type="date" name="end_date" id="end_date"
+                        class="w-full p-3 border border-gray-300 rounded-xl shadow-sm focus:outline-none focus:ring-2 focus:ring-primary-500">
                 </div>
-            </div>
-            <div class="mt-4">
+
+                <!-- Apply Button -->
+                <div>
                     <button type="submit"
-                    class="w-full md:w-auto bg-blue-600 text-white px-6 py-3 rounded-lg font-semibold shadow-md hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500">
+                        class="w-full bg-primary-600 text-white py-2 rounded-xl font-semibold shadow-md hover:bg-primary-700 focus:outline-none">
                         Apply Filters
                     </button>
                 </div>
             </form>
         </div>
+    </div>
+
 
     <div class="max-w-5xl mx-auto" x-data="{ activeView: 'list' }">
         <!-- Tabs -->
         <div class="flex border-b mb-4">
-            <button @click="activeView = 'list'" :class="{'border-blue-600 text-blue-600': activeView === 'list'}"
+            <button @click="activeView = 'list'" :class="{'border-primary-600 text-primary-600': activeView === 'list'}"
                 class="px-4 py-2 text-sm font-medium border-b-2">List View</button>
-            <button @click="activeView = 'weekly'" :class="{'border-blue-600 text-blue-600': activeView === 'weekly'}"
+            <button @click="activeView = 'weekly'"
+                :class="{'border-primary-600 text-primary-600': activeView === 'weekly'}"
                 class="px-4 py-2 text-sm font-medium border-b-2">Weekly View</button>
-            <button @click="activeView = 'monthly'" :class="{'border-blue-600 text-blue-600': activeView === 'monthly'}"
+            <button @click="activeView = 'monthly'"
+                :class="{'border-primary-600 text-primary-600': activeView === 'monthly'}"
                 class="px-4 py-2 text-sm font-medium border-b-2">Monthly View</button>
-            <button @click="activeView = 'graph'" :class="{'border-blue-600 text-blue-600': activeView === 'graph'}"
+            <button @click="activeView = 'graph'"
+                :class="{'border-primary-600 text-primary-600': activeView === 'graph'}"
                 class="px-4 py-2 text-sm font-medium border-b-2">Graph View</button>
         </div>
 
@@ -99,7 +104,7 @@
         <div x-show="activeView === 'list'" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
             {% for reading in readings %}
             <a href="{{ url_for('reading.edit_reading', reading_id=reading.id) }}"
-                class="bg-white shadow-md rounded-lg p-4 flex flex-col justify-between relative hover:shadow-lg transition-shadow">
+                class="bg-white shadow-md rounded-xl p-4 flex flex-col justify-between relative hover:shadow-lg transition-shadow">
                 <!-- Timestamp -->
                 <div class="absolute top-2 right-2 flex items-center text-gray-400 text-xs">
                     <svg xmlns="http://www.w3.org/2000/svg" class="w-4 h-4 mr-1" fill="none" viewBox="0 0 24 24"
@@ -115,7 +120,7 @@
                 <!-- Blood Pressure -->
                 <div class="text-sm text-gray-600 mb-2">
                     <span class="block text-lg font-semibold text-gray-800">Blood Pressure</span>
-                    <span class="text-2xl font-bold text-blue-600">{{ reading.systolic }}</span>
+                    <span class="text-2xl font-bold text-primary-600">{{ reading.systolic }}</span>
                     <span class="text-lg text-gray-500">/</span>
                     <span class="text-xl font-bold text-red-600">{{ reading.diastolic }}</span>
                     <span class="text-sm text-gray-500">mmHg</span>
@@ -146,6 +151,32 @@
             {% endfor %}
         </div>
 
+        <!-- Pagination Controls -->
+        {% if pagination.pages > 1 %}
+        <div x-show="activeView === 'list'" class="flex justify-center items-center gap-2 mt-6">
+            {% if pagination.has_prev %}
+            <a href="{{ url_for('main.dashboard', page=pagination.prev_num) }}"
+                class="px-3 py-1 rounded bg-gray-200 hover:bg-gray-300 text-sm">&laquo; Prev</a>
+            {% endif %}
+
+            {% for page_num in pagination.iter_pages(left_edge=1, right_edge=1, left_current=2, right_current=2) %}
+            {% if page_num %}
+            <a href="{{ url_for('main.dashboard', page=page_num) }}"
+                class="px-3 py-1 rounded text-sm {% if page_num == pagination.page %}bg-primary-600 text-white{% else %}bg-gray-200 hover:bg-gray-300{% endif %}">
+                {{ page_num }}
+            </a>
+            {% else %}
+            <span class="text-gray-400">…</span>
+            {% endif %}
+            {% endfor %}
+
+            {% if pagination.has_next %}
+            <a href="{{ url_for('main.dashboard', page=pagination.next_num) }}"
+                class="px-3 py-1 rounded bg-gray-200 hover:bg-gray-300 text-sm">Next &raquo;</a>
+            {% endif %}
+        </div>
+        {% endif %}
+
         <!-- Weekly View -->
         <div x-show="activeView === 'weekly'" class="grid grid-cols-7 text-center">
             {% for day in week %}
@@ -154,7 +185,7 @@
                 {% if day.readings %}
                 {% for reading in day.readings %}
                 <a href="{{ url_for('reading.edit_reading', reading_id=reading.id) }}"
-                    class="block mt-2 p-0 md:p-2 bg-green-100 rounded-lg shadow hover:bg-green-200 transition">
+                    class="block mt-2 p-0 md:p-2 bg-green-100 rounded-xl shadow hover:bg-green-200 transition">
                     <p class="text-xs font-medium text-green-800">
                         {{ reading.systolic }}/{{ reading.diastolic }} mmHg
                     </p>
@@ -222,7 +253,7 @@
                     </div>
                     {% for reading in day.readings %}
                     <a href="{{ url_for('reading.edit_reading', reading_id=reading.id) }}"
-                        class="block mt-2 p-0 md:p-2 bg-green-100 rounded-lg shadow hover:bg-green-200 transition">
+                        class="block mt-2 p-0 md:p-2 bg-green-100 rounded-xl shadow hover:bg-green-200 transition">
                         <p class="text-xs font-medium text-green-800">
                             {{ reading.systolic }}/{{ reading.diastolic }} mmHg
                         </p>

app/templates/landing.html

@@ -1,22 +1,24 @@
 {% extends "_layout.html" %}
 {% block content %}
-<div class="bg-gray-50">
+<div class="bg-gray-50 pb-20">
     <!-- Hero Section -->
-    <section class="bg-blue-600 text-white">
-        <div class="container mx-auto px-4 py-20 text-center">
-            <h1 class="text-4xl font-bold mb-6">
+    <section
+        class="bg-gradient-to-br from-primary-600 to-primary-800 text-white rounded-b-3xl shadow-xl overflow-hidden relative">
+        <div class="absolute inset-0 bg-white/5 pattern-dots pointer-events-none"></div>
+        <div class="container mx-auto px-4 py-24 text-center relative z-10">
+            <h1 class="text-5xl md:text-6xl font-extrabold mb-6 tracking-tight">
                 Welcome to BP Tracker
             </h1>
-            <p class="text-lg mb-8">
+            <p class="text-xl md:text-2xl mb-12 max-w-2xl mx-auto font-medium text-primary-50 leading-relaxed">
                 Track your blood pressure and heart rate effortlessly. Take control of your health today!
             </p>
-            <div class="flex justify-center space-x-4">
+            <div class="flex flex-col sm:flex-row justify-center space-y-4 sm:space-y-0 sm:space-x-6">
                 <a href="{{ url_for('auth.signup') }}"
-                    class="px-8 py-3 bg-white text-blue-600 font-semibold rounded-lg shadow hover:bg-gray-200">
+                    class="px-8 py-4 bg-white text-primary-700 font-bold text-lg rounded-xl shadow-xl hover:shadow-2xl hover:bg-gray-50 transition-all duration-300 transform hover:-translate-y-1">
                     Get Started
                 </a>
                 <a href="{{ url_for('auth.login') }}"
-                    class="px-8 py-3 bg-blue-700 text-white font-semibold rounded-lg shadow hover:bg-blue-800">
+                    class="px-8 py-4 bg-primary-700 text-white border border-primary-500 font-bold text-lg rounded-xl shadow-lg hover:shadow-xl hover:bg-primary-600 transition-all duration-300 transform hover:-translate-y-1">
                     Login
                 </a>
             </div>
@@ -24,35 +26,56 @@
     </section>
 
     <!-- Features Section -->
-    <section class="container mx-auto px-4 py-16">
-        <h2 class="text-3xl font-bold text-center mb-8">Why Choose BP Tracker?</h2>
-        <div class="grid md:grid-cols-3 gap-8">
-            <div class="text-center bg-white p-6 rounded-lg shadow">
-                <svg xmlns="http://www.w3.org/2000/svg" class="w-16 h-16 text-blue-600 mx-auto mb-4" fill="none"
-                    viewBox="0 0 24 24" stroke="currentColor">
+    <section class="container mx-auto px-4 pt-24">
+        <div class="text-center mb-16">
+            <span class="text-primary-600 font-bold tracking-wider uppercase text-sm mb-2 block">Why Track With
+                Us</span>
+            <h2 class="text-4xl font-extrabold text-gray-900 tracking-tight">Why Choose BP Tracker?</h2>
+        </div>
+        <div class="grid md:grid-cols-3 gap-10">
+            <div
+                class="text-center bg-white p-10 rounded-3xl shadow-lg border border-gray-100 hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
+                <div
+                    class="w-20 h-20 mx-auto bg-primary-50 rounded-2xl flex items-center justify-center mb-6 shadow-inner text-primary-600">
+                    <svg xmlns="http://www.w3.org/2000/svg" class="w-10 h-10" fill="none" viewBox="0 0 24 24"
+                        stroke="currentColor">
                         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                             d="M12 8c2.21 0 4 1.79 4 4s-1.79 4-4 4-4-1.79-4-4 1.79-4 4-4z"></path>
                     </svg>
-                <h3 class="text-lg font-semibold mb-2">Accurate Tracking</h3>
-                <p>Keep a detailed log of your blood pressure and heart rate over time.</p>
                 </div>
-            <div class="text-center bg-white p-6 rounded-lg shadow">
-                <svg xmlns="http://www.w3.org/2000/svg" class="w-16 h-16 text-blue-600 mx-auto mb-4" fill="none"
-                    viewBox="0 0 24 24" stroke="currentColor">
+                <h3 class="text-xl font-bold text-gray-900 mb-3">Accurate Tracking</h3>
+                <p class="text-gray-600 leading-relaxed">Keep a detailed log of your blood pressure and heart rate over
+                    time to share with your doctor.</p>
+            </div>
+
+            <div
+                class="text-center bg-white p-10 rounded-3xl shadow-lg border border-gray-100 hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
+                <div
+                    class="w-20 h-20 mx-auto bg-primary-50 rounded-2xl flex items-center justify-center mb-6 shadow-inner text-primary-600">
+                    <svg xmlns="http://www.w3.org/2000/svg" class="w-10 h-10" fill="none" viewBox="0 0 24 24"
+                        stroke="currentColor">
                         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                             d="M9.75 16.5L15 12m0 0l-5.25-4.5m5.25 4.5H3"></path>
                     </svg>
-                <h3 class="text-lg font-semibold mb-2">Insightful Graphs</h3>
-                <p>Visualize your progress and identify trends with intuitive charts.</p>
                 </div>
-            <div class="text-center bg-white p-6 rounded-lg shadow">
-                <svg xmlns="http://www.w3.org/2000/svg" class="w-16 h-16 text-blue-600 mx-auto mb-4" fill="none"
-                    viewBox="0 0 24 24" stroke="currentColor">
+                <h3 class="text-xl font-bold text-gray-900 mb-3">Insightful Graphs</h3>
+                <p class="text-gray-600 leading-relaxed">Visualize your progress and identify health trends with our
+                    intuitive, easy-to-read charts.</p>
+            </div>
+
+            <div
+                class="text-center bg-white p-10 rounded-3xl shadow-lg border border-gray-100 hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
+                <div
+                    class="w-20 h-20 mx-auto bg-primary-50 rounded-2xl flex items-center justify-center mb-6 shadow-inner text-primary-600">
+                    <svg xmlns="http://www.w3.org/2000/svg" class="w-10 h-10" fill="none" viewBox="0 0 24 24"
+                        stroke="currentColor">
                         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                             d="M9 20l-5.5-5.5M9 20V9m0 11h11"></path>
                     </svg>
-                <h3 class="text-lg font-semibold mb-2">Secure and Private</h3>
-                <p>Your data is protected with state-of-the-art security measures.</p>
+                </div>
+                <h3 class="text-xl font-bold text-gray-900 mb-3">Secure and Private</h3>
+                <p class="text-gray-600 leading-relaxed">Your medical data is protected with state-of-the-art security
+                    measures. Your privacy is paramount.</p>
             </div>
         </div>
     </section>

migrations/versions/8cfe56a1e597_add_reading_index_and_profile_updated_at.py

@@ -0,0 +1,38 @@
+"""Add reading index and profile updated_at
+
+Revision ID: 8cfe56a1e597
+Revises: 5e5a1b78b966
+Create Date: 2026-03-09 21:21:44.291659
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '8cfe56a1e597'
+down_revision = '5e5a1b78b966'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('profile', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('updated_at', sa.DateTime(), nullable=True))
+
+    with op.batch_alter_table('reading', schema=None) as batch_op:
+        batch_op.create_index('ix_reading_user_timestamp', ['user_id', 'timestamp'], unique=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('reading', schema=None) as batch_op:
+        batch_op.drop_index('ix_reading_user_timestamp')
+
+    with op.batch_alter_table('profile', schema=None) as batch_op:
+        batch_op.drop_column('updated_at')
+
+    # ### end Alembic commands ###

tailwind.config.js

@@ -2,7 +2,25 @@
 module.exports = {
   content: ["./app/templates/**/*.html"],
   theme: {
-    extend: {},
+    extend: {
+      fontFamily: {
+        sans: ['Inter', 'sans-serif'],
+      },
+      colors: {
+        primary: {
+          50: '#f0fdfa',
+          100: '#ccfbf1',
+          200: '#99f6e4',
+          300: '#5eead4',
+          400: '#2dd4bf',
+          500: '#14b8a6', // Teal MedTech feeling
+          600: '#0d9488',
+          700: '#0f766e',
+          800: '#115e59',
+          900: '#134e4a',
+        },
+      },
+    },
   },
   plugins: [],
 };