/* ==========================================================================
   CSS Variables & Tokens (Design System)
   ========================================================================== */
:root {
    /* Colors - Dark Premium Theme */
    --bg-main: #08080A;
    --bg-secondary: #121217;
    --bg-card: rgba(255, 255, 255, 0.03);
    
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    
    --accent-primary: #10B981; /* Emerald Green */
    --accent-glow: rgba(16, 185, 129, 0.4);
    --accent-secondary: #047857; /* Darker Emerald */
    
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(18, 18, 23, 0.7);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --nav-height: 80px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Global
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.dot {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.nav-btn-primary):not(.nav-btn-secondary) {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:not(.nav-btn-primary):not(.nav-btn-secondary):hover {
    color: var(--text-primary);
}

.nav-btn-primary {
    background: var(--text-primary);
    color: var(--bg-main);
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.nav-btn-primary:hover {
    background: var(--text-secondary);
}

.nav-btn-secondary {
    color: var(--accent-primary) !important;
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: var(--nav-height);
    text-align: center;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

.hero-title {
    font-size: 5rem;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

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

.hero-subtitle {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.typing-container {
    display: inline-block;
    color: var(--text-primary);
    font-weight: 700;
    position: relative;
}

.cursor {
    display: inline-block;
    width: 3px;
    animation: blink 1s step-end infinite;
    color: var(--accent-primary);
    margin-left: 5px;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Background Glows */
.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: 0;
    opacity: 0.5;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
    top: -100px;
    left: -100px;
    opacity: 0.3;
}

.glow-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: -100px;
    right: -100px;
    opacity: 0.2;
}

/* ==========================================================================
   Modules Section
   ========================================================================== */
.modules {
    padding: 8rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 5;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.module-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.module-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.module-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.module-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing {
    padding: 8rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: center;
}

.price-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.price-card.recommended {
    background: linear-gradient(to bottom, rgba(16, 185, 129, 0.1), rgba(0, 0, 0, 0));
    border-color: var(--accent-primary);
    transform: scale(1.05);
    box-shadow: 0 0 40px rgba(16, 185, 129, 0.15);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 3.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.features {
    margin-bottom: 3rem;
    flex-grow: 1;
}

.features li {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.features li::before {
    content: '✓';
    color: var(--accent-primary);
    font-weight: bold;
}

.features li strong {
    color: var(--text-primary);
}

.price-card .btn {
    width: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 2rem;
    margin-top: 4rem;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

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

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

.copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-title {
        font-size: 3.5rem;
    }
    .hero-subtitle {
        font-size: 1.5rem;
    }
    .price-card.recommended {
        transform: scale(1);
    }
}