/* CSS Custom Properties (Variables) */
:root {
    /* Colors - Updated to match logo */
    --primary-color: #22c55e;
    --primary-dark: #16a34a;
    --primary-light: #4ade80;
    --secondary-color: #2563eb;
    --secondary-dark: #1d4ed8;
    --secondary-light: #3b82f6;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f1f5f9;
    --gray: #64748b;
    --dark-gray: #1e293b;
    --black: #000000;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #1e293b;
    --bg-gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --bg-gradient-light: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
    
    /* Typography */
    --font-family-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-heading: 'Arial', 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;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    transition: opacity var(--transition-normal);
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    text-align: center;
}

.loading-spinner p {
    margin-top: var(--spacing-md);
    color: var(--gray);
}

/* SSL Badge */
.ssl-badge {
    background: var(--success-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
    margin-left: var(--spacing-md);
}

.ssl-icon {
    font-size: var(--font-size-sm);
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

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

.logo-image {
    height: 120px;
    width: auto;
    transition: all var(--transition-fast);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo-image:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
}

.logo h1 {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    margin: 0;
}

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

.nav-link:hover,
.nav-link.active {
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: var(--spacing-xs);
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    background: var(--bg-gradient);
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

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

.hero-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    color: var(--white);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

/* Search Container */
.search-container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-box {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.search-input {
    flex: 1;
    padding: var(--spacing-lg);
    font-size: var(--font-size-lg);
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    background: var(--white);
    color: var(--dark-gray);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.search-btn {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-btn:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 300px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
    display: none;
}

/* Promo Banner */
.promo-banner {
    background: linear-gradient(45deg, #f0fdf4, #dcfce7);
    border: 2px solid var(--primary-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.promo-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.promo-icon {
    font-size: var(--font-size-2xl);
}

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

/* Sections */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--dark-gray);
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.feature-title {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--gray);
    margin: 0;
}

/* Video Section */
.video-section {
    padding: var(--spacing-3xl) 0;
}

.video-player-container {
    max-width: 800px;
    margin: 0 auto;
}

.video-player {
    position: relative;
    background: var(--black);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.video-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

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

.about-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    color: var(--gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
}

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

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--gray);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

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

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

.footer-section a {
    color: #cbd5e0;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid #4a5568;
    color: #a0aec0;
}

/* Buttons */
.btn, .action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px; /* Touch target size */
}

.btn.primary, .action-btn.primary {
    background: var(--primary-color);
    color: var(--white);
}

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

.btn.secondary, .action-btn.secondary {
    background: var(--gray);
    color: var(--white);
}

.btn.secondary:hover, .action-btn.secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

/* Responsive Design - Mobile First */

/* Small devices (576px and up) */
@media (min-width: 576px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .search-box {
        flex-direction: row;
    }
    
    .promo-content {
        flex-wrap: nowrap;
    }
}

/* Medium devices (768px and up) */
@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .ssl-badge {
        top: var(--spacing-lg);
        right: var(--spacing-lg);
    }
}

/* Large devices (992px and up) */
@media (min-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .nav-menu {
        display: flex;
    }
    
    .hamburger {
        display: none;
    }
}

/* Extra large devices (1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    
    .hero {
        padding: var(--spacing-3xl) 0 4rem;
    }
    
    .hero-title {
        font-size: 4rem;
    }
}

/* Mobile Navigation */
@media (max-width: 991px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg) 0;
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-btn {
        justify-content: center;
    }
    
    .video-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .action-btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Logo Responsive Sizing */
@media (max-width: 575px) {
    .logo-image {
        height: 100px;
    }
}

@media (min-width: 576px) and (max-width: 767px) {
    .logo-image {
        height: 100px;
    }
}

@media (min-width: 768px) {
    .logo-image {
        height: 100px;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

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

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a202c;
        --bg-secondary: #2d3748;
        --bg-dark: #171923;
        --dark-gray: #e2e8f0;
        --gray: #a0aec0;
        --white: #1a202c;
    }
    
    .search-input {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .feature-card {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .header {
        background: #2d3748;
    }
}

/* Print styles */
@media print {
    .ssl-badge,
    .hamburger,
    .search-container,
    .video-section,
    .modal {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}