/* CSS Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary-color: #1976D2;
    --primary-dark: #1565C0;
    --primary-light: #2196F3;
    --primary-gradient: linear-gradient(135deg, #1976D2 0%, #2196F3 100%);
    --secondary-color: #4CAF50;
    --accent-color: #FFB74D;
    --success-color: #4CAF50;
    --warning-color: #FFA726;
    --error-color: #D32F2F;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(25, 118, 210, 0.15);
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

.highlight {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(25, 118, 210, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 118, 210, 0.35);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-light);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.btn-large {
    padding: 1rem 2.25rem;
    font-size: 1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.logo-icon {
    font-size: 1.875rem;
    filter: drop-shadow(0 2px 4px rgba(124, 58, 237, 0.3));
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 28px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 4px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 10rem 0 6rem;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #E3F2FD 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 100%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 620px;
}

.hero h1 {
    margin-bottom: 1.75rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    gap: 3.5rem;
}

.stat {
    display: flex;
    flex-direction: column;
    position: relative;
}

.stat::after {
    content: '';
    position: absolute;
    right: -1.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, transparent, var(--border-color), transparent);
}

.stat:last-child::after {
    display: none;
}

.stat-number {
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: var(--primary-gradient);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.2;
    z-index: -1;
}

.phone-mockup {
    width: 300px;
    height: 620px;
    background: linear-gradient(145deg, #1e1e2e, #2d2d44);
    border-radius: 50px;
    padding: 14px;
    box-shadow:
        var(--shadow-xl),
        0 0 0 1px rgba(255,255,255,0.1) inset,
        0 0 60px rgba(25, 118, 210, 0.15);
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s ease;
}

.phone-mockup:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: #000;
    border-radius: 20px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #f8fafc !important;
    background-color: #f8fafc !important;
    border-radius: 38px;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.app-preview {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: #f8fafc !important;
    background-color: #f8fafc !important;
    color: #1e293b;
    font-size: 11px;
    position: relative;
    z-index: 2;
}

.app-preview.dashboard-screen,
.app-preview.medications-screen,
.app-preview.checkin-screen,
.app-preview.emergency-screen,
.app-preview.appointments-screen,
.app-preview.circle-screen {
    background: #f8fafc !important;
    background-color: #f8fafc !important;
}

/* App Status Bar */
.app-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px 8px;
    font-size: 12px;
    font-weight: 600;
    color: #1e293b;
}

.status-icons {
    display: flex;
    gap: 4px;
    font-size: 10px;
}

/* App Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: linear-gradient(135deg, #1976D2 0%, #2196F3 100%);
    background-color: #1976D2;
    color: white;
    margin: 0 8px;
    border-radius: 16px;
    position: relative;
    z-index: 3;
}

.app-header-content {
    display: flex;
    flex-direction: column;
}

.greeting {
    font-size: 10px;
    opacity: 0.9;
}

.user-name {
    font-size: 16px;
    font-weight: 700;
}

.app-avatar {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

/* Care Recipient */
.app-care-recipient {
    display: flex;
    flex-direction: column;
    padding: 12px 16px;
    text-align: center;
}

.care-label {
    font-size: 10px;
    color: #64748b;
}

.care-name {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
}

/* Summary Cards */
.app-summary-cards {
    display: flex;
    gap: 8px;
    padding: 0 12px;
    margin-bottom: 12px;
    position: relative;
    z-index: 3;
}

.summary-card {
    flex: 1;
    background-color: #ffffff;
    border-radius: 12px;
    padding: 12px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.summary-card.medications {
    border-left: 3px solid #1976D2;
}

.summary-card.checkins {
    border-left: 3px solid #4CAF50;
}

.summary-icon {
    font-size: 16px;
    display: block;
    margin-bottom: 4px;
}

.summary-value {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    display: block;
}

.summary-label {
    font-size: 9px;
    color: #64748b;
}

/* Section Title */
.app-section-title {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    padding: 8px 16px 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Medication Items */
.app-med-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin: 0 12px 6px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    position: relative;
    z-index: 3;
}

.med-time {
    font-size: 10px;
    font-weight: 600;
    color: #1976D2;
    min-width: 50px;
}

.med-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.med-name {
    font-size: 11px;
    font-weight: 600;
    color: #1e293b;
}

.med-instruction {
    font-size: 9px;
    color: #64748b;
}

.med-status {
    font-size: 9px;
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.med-status.taken {
    background: #dcfce7;
    color: #166534;
}

.med-status.pending {
    background: #fef3c7;
    color: #92400e;
}

/* Bottom Navigation */
.app-bottom-nav {
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    background-color: #ffffff;
    border-top: 1px solid #e2e8f0;
    margin-top: auto;
    position: relative;
    z-index: 3;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 8px;
    color: #94a3b8;
    gap: 2px;
}

.nav-item span:first-child {
    font-size: 16px;
}

.nav-item.active {
    color: #1976D2;
}

/* Screenshots Section */
.screenshots {
    padding: 6rem 0;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.screenshot-item {
    text-align: center;
}

.screenshot-item h4 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.screenshot-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.phone-mockup.small {
    width: 220px;
    height: 460px;
    border-radius: 36px;
    padding: 10px;
    margin: 0 auto;
    transform: none;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.1) inset;
}

.phone-mockup.small:hover {
    transform: translateY(-8px);
}

.phone-mockup.small::before {
    top: 16px;
    width: 70px;
    height: 20px;
}

.phone-mockup.small .phone-screen {
    border-radius: 28px;
}

.phone-mockup.small .app-status-bar {
    padding: 8px 12px 4px;
    font-size: 10px;
}

.phone-mockup.small .app-bottom-nav {
    padding: 6px 0;
}

.phone-mockup.small .nav-item span:first-child {
    font-size: 14px;
}

/* Screen Header */
.screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 14px;
    background: linear-gradient(135deg, #1976D2 0%, #2196F3 100%);
    background-color: #1976D2;
    color: white;
    margin: 0 6px 8px;
    border-radius: 12px;
    position: relative;
    z-index: 3;
}

.screen-header h3 {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
}

.screen-header.emergency {
    background: linear-gradient(135deg, #C62828 0%, #D32F2F 100%);
}

.add-btn {
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

/* Medications Screen */
.med-list {
    padding: 0 8px;
    flex: 1;
    overflow: hidden;
}

.med-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 8px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    position: relative;
}

.med-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.med-icon {
    font-size: 18px;
}

.med-info {
    display: flex;
    flex-direction: column;
}

.med-title {
    font-size: 12px;
    font-weight: 600;
    color: #1e293b;
}

.med-dose {
    font-size: 9px;
    color: #64748b;
}

.med-schedule {
    font-size: 9px;
    color: #1976D2;
    margin-bottom: 6px;
}

.med-stock {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stock-bar {
    height: 4px;
    background: #4CAF50;
    border-radius: 2px;
    flex-shrink: 0;
}

.stock-bar.low {
    background: #FFA726;
}

.stock-text {
    font-size: 8px;
    color: #64748b;
}

.stock-text.low {
    color: #FFA726;
    font-weight: 600;
}

/* Check-in Screen */
.checkin-content {
    padding: 8px;
    flex: 1;
}

.screen-header-simple {
    padding: 8px 14px;
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
}

.screen-header-simple h3 {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}

.checkin-question {
    text-align: center;
    padding: 12px 8px;
}

.checkin-title {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    display: block;
    margin-bottom: 4px;
}

.checkin-subtitle {
    font-size: 10px;
    color: #64748b;
}

.checkin-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkin-card {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: #ffffff;
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.checkin-card-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.checkin-card-icon.home {
    background: #E8F5E9;
}

.checkin-card-icon.okay {
    background: #E8F5E9;
}

.checkin-card-icon.help {
    background: #FFF3E0;
}

.checkin-card-text {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 11px;
    font-weight: 600;
    color: #1e293b;
}

.card-desc {
    font-size: 9px;
    color: #64748b;
}

.card-arrow {
    font-size: 16px;
    color: #4CAF50;
    font-weight: 600;
}

.app-bottom-nav.five {
    justify-content: space-between;
    padding: 8px 12px;
}

.app-bottom-nav.five .nav-item {
    font-size: 7px;
}

.app-bottom-nav.five .nav-item span:first-child {
    font-size: 14px;
}

/* Emergency Screen */
.emergency-content {
    padding: 8px;
    flex: 1;
}

.emergency-row {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
}

.emergency-section {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 8px;
    margin-bottom: 6px;
}

.emergency-section.compact {
    flex: 1;
    margin-bottom: 0;
    padding: 8px;
}

.emergency-label {
    font-size: 8px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 2px;
}

.emergency-value {
    font-size: 12px;
    font-weight: 600;
    color: #1e293b;
    display: block;
}

.emergency-value.blood {
    font-size: 18px;
    color: #D32F2F;
    font-weight: 700;
}

.emergency-value.large {
    font-size: 24px;
    color: #D32F2F;
}

.emergency-tag {
    display: inline-block;
    background: #FFEBEE;
    color: #D32F2F;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    margin-right: 4px;
}

.emergency-condition {
    display: block;
    font-size: 11px;
    color: #1e293b;
    padding: 2px 0;
}

.emergency-contact {
    display: flex;
    flex-direction: column;
}

.emergency-contact span:first-child {
    font-size: 12px;
    font-weight: 600;
    color: #1e293b;
}

.contact-phone {
    font-size: 11px;
    color: #1976D2;
}

/* Care Circle Screen */
.circle-content {
    padding: 8px;
    flex: 1;
}

.circle-member {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: #ffffff;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 8px;
}

.circle-member.primary {
    border-left: 3px solid #1976D2;
}

.member-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #1976D2, #2196F3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 11px;
    font-weight: 600;
}

.member-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.member-name {
    font-size: 11px;
    font-weight: 600;
    color: #1e293b;
}

.member-role {
    font-size: 9px;
    color: #64748b;
}

.member-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.member-status.online {
    background: #4CAF50;
}

.member-status.offline {
    background: #cbd5e1;
}

.circle-activity {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 10px;
    margin: 0 8px;
}

.activity-title {
    font-size: 10px;
    font-weight: 600;
    color: #64748b;
    display: block;
    margin-bottom: 6px;
}

.activity-item {
    display: flex;
    justify-content: space-between;
    font-size: 9px;
    color: #1e293b;
}

.activity-time {
    color: #64748b;
}

/* Dashboard Screen (Small) */
.dashboard-content {
    padding: 8px;
    flex: 1;
    overflow: hidden;
}

.dashboard-greeting {
    padding: 8px 4px;
}

.greeting-text {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    display: block;
    margin-bottom: 4px;
}

.caring-for-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    color: #64748b;
}

.care-dropdown {
    color: #1976D2;
    font-weight: 500;
}

.overview-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 10px;
    margin-bottom: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.overview-header {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.overview-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    font-size: 10px;
    color: #1e293b;
}

.ov-icon {
    font-size: 12px;
}

.ov-icon.check {
    color: #4CAF50;
}

.ov-icon.clock {
    color: #FFA726;
}

.ov-icon.heart {
    color: #4CAF50;
}

.meds-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.meds-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 10px;
    font-weight: 600;
    color: #1e293b;
}

.view-all {
    color: #1976D2;
    font-weight: 500;
}

.med-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-top: 1px solid #f1f5f9;
}

.med-info-col {
    display: flex;
    flex-direction: column;
}

.med-name-sm {
    font-size: 10px;
    font-weight: 600;
    color: #1e293b;
}

.med-time-sm {
    font-size: 8px;
    color: #64748b;
}

.mark-taken-btn {
    background: #1976D2;
    color: white;
    font-size: 7px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
}

/* Appointments Screen */
.appointments-content {
    padding: 8px;
    flex: 1;
}

.appointment-card {
    display: flex;
    gap: 10px;
    background-color: #ffffff;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 8px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.appointment-card.upcoming-apt {
    border-left: 3px solid #1976D2;
    background-color: #E3F2FD;
}

.apt-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 36px;
}

.apt-day {
    font-size: 16px;
    font-weight: 700;
    color: #1976D2;
    line-height: 1;
}

.apt-month {
    font-size: 9px;
    color: #64748b;
    text-transform: uppercase;
}

.apt-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.apt-title {
    font-size: 11px;
    font-weight: 600;
    color: #1e293b;
}

.apt-type {
    font-size: 9px;
    color: #64748b;
}

.apt-time {
    font-size: 9px;
    color: #1976D2;
    margin-top: 2px;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-top: 1.25rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features Section */
.features {
    padding: 8rem 0;
    background: var(--bg-primary);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--primary-light);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Who It's For Section */
.who-its-for {
    padding: 8rem 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, #E3F2FD 100%);
    position: relative;
}

.personas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.persona-card {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.persona-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.persona-image {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.75rem;
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.25);
}

.persona-emoji {
    font-size: 2.25rem;
}

.persona-card h3 {
    margin-bottom: 1rem;
}

.persona-card > p {
    color: var(--text-secondary);
    margin-bottom: 1.75rem;
    line-height: 1.7;
}

.persona-benefits {
    list-style: none;
}

.persona-benefits li {
    padding: 0.625rem 0;
    padding-left: 1.75rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.persona-benefits li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.persona-benefits li::after {
    content: '✓';
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    font-size: 0.75rem;
    font-weight: bold;
}

/* How It Works Section */
.how-it-works {
    padding: 8rem 0;
    background: var(--bg-primary);
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 3.5rem;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 32px;
    top: 80px;
    bottom: -35px;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--primary-light));
    border-radius: 3px;
}

.step-number {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(25, 118, 210, 0.3);
}

.step-content {
    padding-top: 0.5rem;
}

.step-content h3 {
    margin-bottom: 0.75rem;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Download Section */
.download {
    padding: 8rem 0;
    background: linear-gradient(135deg, #0f172a 0%, #0D47A1 50%, #1565C0 100%);
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(25, 118, 210, 0.2) 0%, transparent 60%);
    pointer-events: none;
}

.download-content {
    text-align: center;
    max-width: 650px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.download-content h2 {
    color: white;
    margin-bottom: 1.25rem;
}

.download-content .highlight {
    background: linear-gradient(135deg, #64B5F6, #42A5F5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-content p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2.5rem;
    font-size: 1.125rem;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.store-badge-wrapper {
    position: relative;
    display: inline-block;
}

.store-badge {
    height: 54px;
    width: auto;
    filter: brightness(0.95);
    opacity: 0.9;
    transition: all 0.3s ease;
    border-radius: var(--radius-md);
}

.store-badge-wrapper:hover .store-badge {
    filter: brightness(1);
    opacity: 1;
    transform: translateY(-3px);
}

.coming-soon-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    background: linear-gradient(135deg, #FFA726, #FF7043);
    color: white;
    font-size: 0.6875rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(255, 167, 38, 0.4);
}

/* Coming Soon Alert */
.coming-soon-alert {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: 1.25rem 1.5rem;
    margin-bottom: 2.5rem;
    text-align: left;
}

.alert-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.alert-text {
    flex: 1;
}

.alert-text strong {
    color: #FFB74D;
    font-size: 1.125rem;
    display: block;
    margin-bottom: 0.25rem;
}

.alert-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9375rem;
    margin: 0;
    line-height: 1.5;
}

.store-badge-wrapper.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.store-badge-wrapper.disabled:hover .store-badge {
    transform: none;
    filter: brightness(0.95);
    opacity: 0.9;
}

/* Footer */
.footer {
    background: #0f172a;
    color: white;
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-light);
    margin-top: 1.25rem;
    line-height: 1.7;
}

.footer-brand .logo-text {
    background: linear-gradient(135deg, #a855f7, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.875rem;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9375rem;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive Styles */

/* Extra Large Screens (1400px+) */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }

    .hero .container {
        gap: 6rem;
    }

    .phone-mockup {
        width: 340px;
        height: 700px;
    }

    .features-grid {
        gap: 2.5rem;
    }
}

/* Large Screens / Small Laptops (1024px - 1200px) */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 3rem;
    }

    .hero .container {
        gap: 3rem;
    }

    .phone-mockup {
        width: 280px;
        height: 580px;
    }

    .features-grid,
    .personas-grid {
        gap: 1.5rem;
    }

    .feature-card,
    .persona-card {
        padding: 2rem;
    }
}

/* Tablets / Medium Screens (768px - 1024px) */
@media (max-width: 1024px) {
    .container {
        padding: 0 2rem;
    }

    h1 { font-size: 2.75rem; }
    h2 { font-size: 2.25rem; }

    .hero {
        padding: 8rem 0 5rem;
        min-height: auto;
    }

    .hero .container {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-buttons {
        margin-bottom: 3rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .phone-mockup {
        width: 240px;
        height: 500px;
        border-radius: 40px;
    }

    .phone-mockup::before {
        width: 80px;
        height: 22px;
        top: 18px;
    }

    .phone-screen {
        border-radius: 32px;
    }

    .app-preview {
        padding: 55px 18px 18px;
    }

    .preview-header span:first-child {
        font-size: 1.5rem;
    }

    .preview-card {
        padding: 14px 16px;
        font-size: 0.875rem;
    }

    .features-grid,
    .personas-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }

    .section-header {
        margin-bottom: 3.5rem;
    }

    .features,
    .who-its-for,
    .how-it-works,
    .download {
        padding: 6rem 0;
    }
}

/* Small Tablets / Large Phones (600px - 768px) */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.25rem; }

    .navbar .container {
        height: 70px;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 7rem 0 4rem;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .hero-image {
        order: -1;
    }

    .hero-image::before {
        width: 300px;
        height: 300px;
    }

    .phone-mockup {
        width: 220px;
        height: 460px;
        border-radius: 36px;
        padding: 10px;
        transform: none !important;
    }

    .phone-mockup::before {
        width: 70px;
        height: 20px;
        top: 16px;
    }

    .phone-screen {
        border-radius: 28px;
    }

    .app-preview {
        padding: 50px 16px 16px;
    }

    .preview-header {
        margin-bottom: 25px;
    }

    .preview-header span:first-child {
        font-size: 1.25rem;
    }

    .preview-date {
        font-size: 0.8125rem;
    }

    .preview-card {
        padding: 12px 14px;
        margin-bottom: 10px;
        border-radius: 12px;
        font-size: 0.8125rem;
        gap: 10px;
    }

    .card-icon {
        font-size: 1.125rem;
    }

    .hero-subtitle {
        font-size: 1.0625rem;
        margin-bottom: 2rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
        margin-bottom: 2.5rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }

    .btn-large {
        padding: 0.875rem 1.75rem;
        font-size: 0.9375rem;
    }

    .hero-stats {
        justify-content: center;
        gap: 2.5rem;
    }

    .stat-number {
        font-size: 1.125rem;
    }

    .stat-label {
        font-size: 0.8125rem;
    }

    .stat::after {
        right: -1.25rem;
        height: 30px;
    }

    .features-grid,
    .personas-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .screenshot-item h4 {
        font-size: 1rem;
        margin-top: 1rem;
    }

    .screenshot-item p {
        font-size: 0.8125rem;
    }

    .phone-mockup.small {
        width: 180px;
        height: 380px;
    }

    .screenshots {
        padding: 4rem 0;
    }

    .feature-card,
    .persona-card {
        padding: 1.75rem;
    }

    .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 1.25rem;
    }

    .feature-card p,
    .persona-card > p {
        font-size: 0.9375rem;
    }

    .persona-image {
        width: 70px;
        height: 70px;
        margin-bottom: 1.5rem;
    }

    .persona-emoji {
        font-size: 2rem;
    }

    .step {
        gap: 1.75rem;
        margin-bottom: 2.5rem;
    }

    .step:not(:last-child)::after {
        left: 28px;
        top: 70px;
        bottom: -25px;
    }

    .step-number {
        width: 56px;
        height: 56px;
        font-size: 1.25rem;
    }

    .step-content h3 {
        font-size: 1.125rem;
    }

    .step-content p {
        font-size: 0.9375rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .footer-brand {
        margin-bottom: 1rem;
    }

    .footer-links h4 {
        margin-bottom: 1rem;
    }

    .footer-links li {
        margin-bottom: 0.625rem;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .store-badge {
        height: 48px;
    }

    .coming-soon-badge {
        font-size: 0.625rem;
        padding: 5px 10px;
        top: -10px;
        right: -8px;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .section-header p {
        font-size: 1.0625rem;
    }

    .features,
    .who-its-for,
    .how-it-works,
    .download {
        padding: 4rem 0;
    }

    .footer {
        padding: 3.5rem 0 1.5rem;
    }

    .footer-bottom {
        padding-top: 1.5rem;
        font-size: 0.8125rem;
    }
}

/* Mobile Phones (480px - 600px) */
@media (max-width: 600px) {
    .container {
        padding: 0 1.25rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.625rem; }

    .hero {
        padding: 6.5rem 0 3rem;
    }

    .phone-mockup {
        width: 200px;
        height: 420px;
        border-radius: 32px;
        padding: 8px;
    }

    .phone-mockup::before {
        width: 60px;
        height: 18px;
        top: 14px;
    }

    .phone-screen {
        border-radius: 26px;
    }

    .app-preview {
        padding: 45px 14px 14px;
    }

    .preview-header span:first-child {
        font-size: 1.125rem;
    }

    .preview-card {
        padding: 10px 12px;
        font-size: 0.75rem;
        gap: 8px;
    }

    .hero-stats {
        gap: 2rem;
    }

    .feature-card,
    .persona-card {
        padding: 1.5rem;
    }

    .persona-benefits li {
        font-size: 0.875rem;
        padding-left: 1.5rem;
    }

    .persona-benefits li::before {
        width: 18px;
        height: 18px;
    }

    .persona-benefits li::after {
        left: 3px;
        font-size: 0.6875rem;
    }

    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .phone-mockup.small {
        width: 160px;
        height: 340px;
    }

    .screen-header h3 {
        font-size: 12px;
    }
}

/* Small Mobile Phones (under 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.125rem; }

    .navbar .container {
        height: 64px;
    }

    .logo-icon {
        font-size: 1.5rem;
    }

    .logo-text {
        font-size: 1.125rem;
    }

    .hero {
        padding: 6rem 0 2.5rem;
    }

    .hero-image::before {
        width: 250px;
        height: 250px;
    }

    .phone-mockup {
        width: 180px;
        height: 380px;
        border-radius: 28px;
        padding: 6px;
    }

    .phone-mockup::before {
        width: 50px;
        height: 16px;
        top: 12px;
        border-radius: 10px;
    }

    .phone-screen {
        border-radius: 24px;
    }

    .app-preview {
        padding: 40px 12px 12px;
    }

    .preview-header {
        margin-bottom: 20px;
    }

    .preview-header span:first-child {
        font-size: 1rem;
    }

    .preview-date {
        font-size: 0.75rem;
    }

    .preview-card {
        padding: 10px;
        margin-bottom: 8px;
        border-radius: 10px;
        font-size: 0.6875rem;
        gap: 6px;
    }

    .card-icon {
        font-size: 1rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.75rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 0.875rem;
        margin-bottom: 2rem;
    }

    .btn-large {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.25rem;
        align-items: center;
    }

    .stat {
        text-align: center;
    }

    .stat::after {
        display: none;
    }

    .section-header p {
        font-size: 1rem;
    }

    .feature-card,
    .persona-card {
        padding: 1.25rem;
    }

    .feature-icon {
        font-size: 2.25rem;
        margin-bottom: 1rem;
    }

    .feature-card h3,
    .persona-card h3 {
        font-size: 1.0625rem;
        margin-bottom: 0.75rem;
    }

    .feature-card p,
    .persona-card > p {
        font-size: 0.875rem;
        line-height: 1.6;
    }

    .persona-image {
        width: 60px;
        height: 60px;
        margin-bottom: 1.25rem;
        border-radius: 1rem;
    }

    .persona-emoji {
        font-size: 1.75rem;
    }

    .persona-card > p {
        margin-bottom: 1.25rem;
    }

    .persona-benefits li {
        padding: 0.5rem 0;
        font-size: 0.8125rem;
    }

    .step {
        flex-direction: column;
        text-align: center;
        gap: 1.25rem;
        margin-bottom: 2rem;
    }

    .step:not(:last-child)::after {
        display: none;
    }

    .step-number {
        margin: 0 auto;
        width: 50px;
        height: 50px;
        font-size: 1.125rem;
    }

    .step-content h3 {
        font-size: 1.0625rem;
    }

    .step-content p {
        font-size: 0.875rem;
    }

    .download-content h2 {
        font-size: 1.5rem;
    }

    .download-content p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .store-badge {
        height: 44px;
    }

    .coming-soon-badge {
        font-size: 0.5625rem;
        padding: 4px 8px;
        top: -8px;
        right: -6px;
    }

    .features,
    .who-its-for,
    .how-it-works,
    .download {
        padding: 3rem 0;
    }

    .footer {
        padding: 3rem 0 1.25rem;
    }

    .footer-grid {
        gap: 1.75rem;
    }

    .footer-brand p {
        font-size: 0.875rem;
    }

    .footer-links h4 {
        font-size: 0.9375rem;
        margin-bottom: 0.875rem;
    }

    .footer-links a {
        font-size: 0.875rem;
    }

    .footer-bottom {
        padding-top: 1.25rem;
        font-size: 0.75rem;
    }
}

/* Extra Small Phones (under 360px) */
@media (max-width: 360px) {
    .container {
        padding: 0 0.875rem;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.375rem; }

    .phone-mockup {
        width: 160px;
        height: 340px;
    }

    .hero-subtitle {
        font-size: 0.9375rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }

    .feature-card,
    .persona-card {
        padding: 1rem;
    }

    .store-badge {
        height: 40px;
    }
}

/* Landscape Mode for Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 5rem 0 3rem;
    }

    .hero .container {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }

    .hero-image {
        order: 0;
    }

    .phone-mockup {
        width: 160px;
        height: 340px;
    }

    .hero-buttons {
        justify-content: flex-start;
    }

    .hero-stats {
        justify-content: flex-start;
    }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .phone-mockup {
        box-shadow:
            0 25px 50px -12px rgba(0, 0, 0, 0.15),
            0 0 0 0.5px rgba(255,255,255,0.1) inset,
            0 0 60px rgba(124, 58, 237, 0.15);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .phone-mockup {
        transform: none !important;
    }

    .feature-card:hover,
    .persona-card:hover {
        transform: none;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-card,
.persona-card,
.step,
.screenshot-item {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.15s; }
.feature-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(4) { animation-delay: 0.25s; }
.feature-card:nth-child(5) { animation-delay: 0.3s; }
.feature-card:nth-child(6) { animation-delay: 0.35s; }
.feature-card:nth-child(7) { animation-delay: 0.4s; }

.persona-card:nth-child(1) { animation-delay: 0.1s; }
.persona-card:nth-child(2) { animation-delay: 0.15s; }
.persona-card:nth-child(3) { animation-delay: 0.2s; }
.persona-card:nth-child(4) { animation-delay: 0.25s; }
.persona-card:nth-child(5) { animation-delay: 0.3s; }
.persona-card:nth-child(6) { animation-delay: 0.35s; }

.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.2s; }
.step:nth-child(3) { animation-delay: 0.3s; }
.step:nth-child(4) { animation-delay: 0.4s; }

.screenshot-item:nth-child(1) { animation-delay: 0.1s; }
.screenshot-item:nth-child(2) { animation-delay: 0.15s; }
.screenshot-item:nth-child(3) { animation-delay: 0.2s; }
.screenshot-item:nth-child(4) { animation-delay: 0.25s; }
.screenshot-item:nth-child(5) { animation-delay: 0.3s; }
.screenshot-item:nth-child(6) { animation-delay: 0.35s; }

/* Smooth scroll offset for fixed header */
section[id] {
    scroll-margin-top: 100px;
}