:root {
    --bg-dark: #0f172a; /* Slate 900 */
    --bg-darker: #020617; /* Slate 950 */
    --bg-card: rgba(30, 41, 59, 0.7); /* Slate 800 with opacity for glassmorphism */
    --bg-card-hover: rgba(51, 65, 85, 0.9); /* Slate 700 with opacity */
    
    --text-main: #f8fafc; /* Slate 50 */
    --text-muted: #94a3b8; /* Slate 400 */
    
    --primary: #06b6d4; /* Cyan 500 */
    --primary-hover: #0891b2; /* Cyan 600 */
    
    --accent: #10b981; /* Emerald 500 */
    --accent-hover: #059669; /* Emerald 600 */

    --border: rgba(255, 255, 255, 0.1);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-top: 0;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-main), var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 50px auto;
}

/* Utils */
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(6, 182, 212, 0.39);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.23);
}

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

.btn-outline:hover {
    background-color: var(--primary);
    color: #fff;
}

/* Glassmorphism Classes */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    will-change: transform, backdrop-filter;
    transform: translateZ(0);
    -webkit-transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.appear {
    opacity: 1;
    transform: translateY(0);
}