/**
 * Landing Page CSS
 * Styles for the public landing page (home/index.html)
 */

/* Navbar */
.landing-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

/* Navbar when scrolled */
.landing-navbar.scrolled {
    background: var(--md-sys-color-surface-container);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom-color: var(--md-sys-color-outline-variant);
}

[data-theme="dark"] .landing-navbar.scrolled {
    background: rgba(26, 26, 26, 0.9);
}

/* Navbar brand/links styling when transparent */
.landing-navbar:not(.scrolled) .landing-navbar-brand,
.landing-navbar:not(.scrolled) .landing-nav-link {
    color: #ffffff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.landing-navbar:not(.scrolled) .landing-navbar-brand md-icon {
    color: #ffffff;
}

.landing-navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-weight: 500;
    font-size: 20px;
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
}

.landing-nav-links {
    display: flex;
    gap: 16px;
    align-items: center;
}

.landing-nav-link {
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: var(--md-sys-shape-corner-small);
    transition: background-color var(--transition-fast);
}

.landing-nav-link:hover {
    background: var(--hover-overlay);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
}

/* Hero Section */
.hero-section {
    padding: 160px 24px 80px 24px;
    text-align: center;
    background: 
        linear-gradient(135deg, rgba(111, 119, 165, 0.55) 0%, rgba(175, 138, 183, 0.45) 50%, rgba(195, 177, 206, 0.35) 100%),
        url('/static/images/hero-bg.jpg') center/cover no-repeat;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

[data-theme="dark"] .hero-section {
    background: 
        linear-gradient(135deg, rgba(90, 98, 144, 0.6) 0%, rgba(109, 72, 117, 0.55) 50%, rgba(67, 49, 78, 0.5) 100%),
        url('/static/images/hero-bg.jpg') center/cover no-repeat;
}

.hero-title {
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-size: 56px;
    line-height: 64px;
    margin-bottom: 24px;
    color: #ffffff;
    font-weight: 500;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 22px;
    line-height: 32px;
    color: rgba(255, 255, 255, 0.95);
    max-width: 700px;
    margin: 0 auto 48px auto;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.25);
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-actions md-filled-button,
.hero-actions md-outlined-button {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-actions md-outlined-button {
    --md-outlined-button-outline-color: rgba(255, 255, 255, 0.7);
    --md-outlined-button-label-text-color: #ffffff;
    --md-outlined-button-hover-label-text-color: #ffffff;
    --md-outlined-button-focus-label-text-color: #ffffff;
    --md-outlined-button-pressed-label-text-color: #ffffff;
    --md-outlined-button-hover-state-layer-color: rgba(255, 255, 255, 0.1);
}

/* Features Section */
.features-section {
    padding: 80px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-size: 32px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 18px;
    color: var(--md-sys-color-on-surface-variant);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--md-sys-color-surface-container);
    padding: 32px;
    border-radius: var(--md-sys-shape-corner-extra-large);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    box-shadow: var(--elevation-1);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--elevation-3);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--md-sys-shape-corner-large);
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon md-icon {
    font-size: 32px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--md-sys-color-on-surface-variant);
    line-height: 1.6;
}

/* Stats Section */
.stats-section {
    background-color: var(--md-sys-color-inverse-surface);
    color: var(--md-sys-color-inverse-on-surface);
    padding: 80px 24px;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-item {
    padding: 24px;
}

.stat-number {
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--md-sys-color-inverse-primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* About Section */
.about-section {
    padding: 80px 24px;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--md-sys-color-surface-container);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h2 {
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-size: 32px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 16px;
}

.about-text > p {
    font-size: 18px;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 24px;
    line-height: 1.6;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-feature-item {
    display: flex;
    gap: 12px;
    align-items: center;
    color: var(--md-sys-color-on-surface);
}

.about-feature-item md-icon {
    color: var(--md-sys-color-primary);
}

.about-visual {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.about-visual md-icon {
    font-size: 240px;
    color: var(--md-sys-color-primary);
    opacity: 0.1;
}

/* CTA Section */
.cta-section {
    padding: 120px 24px;
    text-align: center;
    background: 
        linear-gradient(135deg, rgba(111, 119, 165, 0.08) 0%, rgba(175, 138, 183, 0.12) 50%, rgba(195, 177, 206, 0.08) 100%),
        var(--md-sys-color-surface);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--md-sys-color-primary-container) 0%, transparent 70%);
    opacity: 0.4;
    pointer-events: none;
}

[data-theme="dark"] .cta-section {
    background: 
        linear-gradient(135deg, rgba(90, 98, 144, 0.15) 0%, rgba(109, 72, 117, 0.2) 50%, rgba(67, 49, 78, 0.15) 100%),
        var(--md-sys-color-surface);
}

[data-theme="dark"] .cta-section::before {
    background: radial-gradient(circle, var(--md-sys-color-primary) 0%, transparent 70%);
    opacity: 0.1;
}

.cta-section h2 {
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-size: 42px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.cta-section > p {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.cta-section md-filled-button {
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 16px rgba(111, 119, 165, 0.4), 0 2px 6px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-section md-filled-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(111, 119, 165, 0.5), 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Footer */
.landing-footer {
    background: var(--md-sys-color-surface-container);
    padding: 64px 24px;
    border-top: 1px solid var(--md-sys-color-outline-variant);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    font-family: 'Google Sans', 'Roboto', sans-serif;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
}

.footer-brand md-icon {
    color: var(--md-sys-color-primary);
}

.footer-tagline {
    color: var(--md-sys-color-on-surface-variant);
}

.footer-links {
    display: flex;
    gap: 24px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--md-sys-color-on-surface-variant);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--md-sys-color-primary);
}

.footer-copyright {
    color: var(--md-sys-color-outline);
    font-size: 14px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .landing-navbar {
        padding: 0 16px;
    }
    
    .landing-nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--md-sys-color-surface-container);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--md-sys-color-outline-variant);
        box-shadow: var(--elevation-2);
    }
    
    .landing-nav-links.open {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-section {
        padding: 120px 16px 60px 16px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 36px;
        line-height: 44px;
    }
    
    .hero-subtitle {
        font-size: 18px;
        line-height: 26px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }
    
    .hero-actions md-filled-button,
    .hero-actions md-outlined-button {
        width: 100%;
    }
    
    .features-section,
    .about-section,
    .cta-section {
        padding: 48px 16px;
    }
    
    .section-header h2,
    .about-text h2,
    .cta-section h2 {
        font-size: 28px;
    }
    
    .stats-section {
        padding: 48px 16px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .about-visual {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
        line-height: 36px;
    }
    
    .feature-card {
        padding: 24px;
    }
}