/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors - Based on app icon (deep blue/purple) */
    --primary-color: #4A5568;
    --primary-light: #718096;
    --primary-dark: #2D3748;
    
    /* Secondary Colors - White-based */
    --secondary-color: #F7FAFC;
    --secondary-light: #FFFFFF;
    --secondary-dark: #EDF2F7;
    
    /* Accent Colors */
    --accent-color: #667EEA;
    --accent-light: #9F7AEA;
    --accent-dark: #553C9A;
    
    /* Neutral Colors */
    --text-primary: #2D3748;
    --text-secondary: #4A5568;
    --text-muted: #718096;
    --text-light: #A0AEC0;
    
    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F7FAFC;
    --bg-accent: #EDF2F7;
    
    /* Border Colors */
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    
    /* Shadow Colors */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    text-decoration: none;
}

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

.logo-text {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-8);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-fast);
    border-radius: var(--radius-sm);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-20);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

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

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-8);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-preview {
    width: 300px;
    height: 300px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-slow);
}

.app-preview:hover {
    transform: scale(1.05);
}

/* Section Styles */
section {
    padding: var(--spacing-20) 0;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-16);
    line-height: 1.6;
}

/* Features Section */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-8);
}

.feature-card {
    background: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
}

.feature-icon i {
    font-size: var(--font-size-2xl);
    color: white;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Prayer Segments Section */
.prayer-segments {
    background: var(--bg-primary);
}

.segments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-4);
    max-width: 800px;
    margin: 0 auto;
}

.segment-item {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--radius-lg);
    text-align: center;
    font-weight: 600;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.segment-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Download Section */
.download {
    background: var(--bg-secondary);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.download-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
}

.download-list {
    list-style: none;
}

.download-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
    color: var(--text-secondary);
}

.download-list i {
    color: var(--accent-color);
    font-size: var(--font-size-lg);
}

.download-buttons {
    text-align: center;
}

.download-btn {
    display: inline-block;
    margin-bottom: var(--spacing-4);
}

.app-store-badge {
    height: 60px;
    transition: var(--transition-normal);
}

.app-store-badge:hover {
    transform: scale(1.05);
}

.download-note {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Contact Section */
.contact {
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
}

.contact-item i {
    font-size: var(--font-size-xl);
    color: var(--accent-color);
    margin-top: var(--spacing-1);
}

.contact-item h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-secondary);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Policy Sections */
.policy {
    background: var(--bg-secondary);
}

.policy-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: var(--spacing-12);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.policy-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-8) 0 var(--spacing-4);
}

.policy-content h3:first-child {
    margin-top: 0;
}

.policy-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-4);
}

.policy-content strong {
    color: var(--text-primary);
}

.policy-content a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.policy-content a:hover {
    color: var(--accent-dark);
    text-decoration: underline;
}

.policy-content ul {
    margin: var(--spacing-4) 0;
    padding-left: var(--spacing-6);
}

.policy-content li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-12) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-6);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
}

.footer-links {
    display: flex;
    gap: var(--spacing-6);
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-social p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-8) 0;
        gap: var(--spacing-6);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-12);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .app-preview {
        width: 250px;
        height: 250px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .segments-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-3);
    }
    
    .hero {
        padding: 100px 0 var(--spacing-16);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .btn {
        padding: var(--spacing-3) var(--spacing-5);
        font-size: var(--font-size-sm);
    }
    
    .feature-card {
        padding: var(--spacing-6);
    }
    
    .contact-form {
        padding: var(--spacing-6);
    }
    
    .policy-content {
        padding: var(--spacing-8);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus Styles for Accessibility */
.btn:focus,
.nav-link:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000000;
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}