:root {
    --bg-dark: #030712;
    --bg-surface: #0a0f1d;
    --bg-card: rgba(17, 24, 39, 0.7);
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --cyan: #22d3ee;
    --emerald: #10b981;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-dim: #64748b;
    --border-light: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(99, 102, 241, 0.4);
    --radius-main: 24px;
    --font-main: 'Cairo', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

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

/* Background Effects */
.mesh-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(34, 211, 238, 0.1) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(99, 102, 241, 0.05) 0px, transparent 50%);
    z-index: -3;
    filter: blur(100px);
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
    mask-image: radial-gradient(circle at 50% 50%, black, transparent 90%);
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 1200px;
    background: rgba(10, 15, 29, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: 24px;
    z-index: 1000;
    padding: 12px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.site-header.scrolled {
    top: 12px;
    padding: 10px 32px;
    background: rgba(10, 15, 29, 0.95);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.logo {
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: 1.4rem;
    color: #fff;
    text-decoration: none;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

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

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
}

.text-gradient {
    background: linear-gradient(135deg, #fff 0%, var(--accent) 50%, var(--cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    padding: 14px 32px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    border: 1px solid transparent;
}

.btn-primary {
    background: #fff;
    color: #030712;
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    transform: translateY(-3px);
    background: var(--accent);
    color: #fff;
    box-shadow: 0 15px 30px var(--accent-glow);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    color: #fff;
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent);
    transform: translateY(-3px);
}

/* Cards & Elements */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-main);
    padding: 40px;
    backdrop-filter: blur(12px);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: var(--border-accent);
    background: rgba(17, 24, 39, 0.8);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
footer {
    padding: 100px 0 60px;
    background: rgba(3, 7, 18, 0.8);
    border-top: 1px solid var(--border-light);
    margin-top: 100px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
}

.footer-logo {
    margin-bottom: 24px;
}

.footer-desc {
    color: var(--text-secondary);
    max-width: 300px;
    font-size: 0.95rem;
}

.footer-links-col h4 {
    margin-bottom: 24px;
    font-size: 1.1rem;
}

.footer-link {
    display: block;
    color: var(--text-dim);
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent);
    transform: translateX(-5px);
}

.footer-bottom {
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
}

@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}