/* ========================================
   FaithFlow Website Styles
   Matches the app's theme and design system
   ======================================== */

/* CSS Variables - Matching App Theme */
:root {
    /* Light Mode Colors */
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #EFF6FF;
    --accent: #D97706;

    --background: #F1F5F9;
    --background-secondary: #E2E8F0;
    --card: #FFFFFF;

    --text: #1E293B;
    --text-secondary: #64748B;
    --text-tertiary: #94A3B8;

    --success: #059669;
    --error: #DC2626;
    --warning: #D97706;

    --border: #E2E8F0;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-xxl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(59, 130, 246, 0.1);
    --shadow-md: 0 4px 12px rgba(59, 130, 246, 0.15);
    --shadow-lg: 0 8px 16px rgba(59, 130, 246, 0.2);
    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.08);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Colors */
.dark-mode {
    --primary: #60A5FA;
    --primary-dark: #3B82F6;
    --primary-light: #1E3A8A;
    --accent: #F59E0B;

    --background: #0F1419;
    --background-secondary: #1E293B;
    --card: #1E293B;

    --text: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-tertiary: #64748B;

    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;

    --border: #374151;

    --shadow-sm: 0 2px 8px rgba(96, 165, 250, 0.15);
    --shadow-md: 0 4px 12px rgba(96, 165, 250, 0.2);
    --shadow-lg: 0 8px 16px rgba(96, 165, 250, 0.25);
    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.3);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

/* ========================================
   Container & Utilities
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Navigation
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.light-mode .nav {
    background-color: rgba(255, 255, 255, 0.95);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--primary-light);
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    transition: var(--transition);
}

.theme-toggle:hover {
    border-color: var(--primary);
    transform: rotate(20deg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text);
    transition: var(--transition);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background-color: var(--background);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        transform: translateX(-100%);
        transition: var(--transition);
        border-bottom: 1px solid var(--border);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-secondary) 100%);
    opacity: 0.5;
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.1;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.1); opacity: 0.15; }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

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

.phone-mockup {
    perspective: 1000px;
}

.phone-frame {
    background: linear-gradient(145deg, #1e293b, #334155);
    border-radius: 2.5rem;
    padding: 0.75rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

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

.phone-screen {
    background-color: var(--background);
    border-radius: 2rem;
    overflow: hidden;
    aspect-ratio: 9/19.5;
}

.screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    animation: bounce 2s infinite;
}

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

@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* ========================================
   Features Section
   ======================================== */

.features {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xxl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

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

.feature-card {
    background-color: var(--card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   About Section
   ======================================== */

.about {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.check-icon {
    width: 24px;
    height: 24px;
    color: var(--success);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-features {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Download Section
   ======================================== */

.download {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.download-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.download .section-title,
.download .section-subtitle {
    color: white;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin: var(--spacing-xxl) 0 var(--spacing-lg);
}

.download-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: white;
    transition: var(--transition);
}

.download-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.download-icon {
    width: 40px;
    height: 40px;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.download-label {
    font-size: 0.75rem;
    opacity: 0.9;
}

.download-store {
    font-size: 1.25rem;
    font-weight: 600;
}

.download-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-btn {
        width: 100%;
        max-width: 300px;
    }
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background-color: var(--background-secondary);
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}

.footer-logo {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
}

.footer-tagline {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card);
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
}

.footer-verse {
    margin-top: var(--spacing-sm);
    font-style: italic;
    color: var(--text-tertiary);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

/* ========================================
   Animations (AOS-like)
   ======================================== */

[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(-30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }
}