:root {
    --bg-color: #0b0f19;
    --primary: #00e5ff;
    --primary-glow: rgba(0, 229, 255, 0.5);
    --secondary: #1a2235;
    --text: #f0f4f8;
    --text-muted: #94a3b8;
    --glass-bg: rgba(26, 34, 53, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Tajawal', 'Cairo', sans-serif;
    background-color: var(--bg-color);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for depth */
.blob {
    position: absolute;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.5;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.blob-2 {
    top: 40%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
    animation-delay: -5s;
}

.blob-3 {
    bottom: -10%;
    left: 20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Utility Classes */
.text-cyan { color: var(--primary); }
.text-center { text-align: center; }
.glow-text {
    text-shadow: 0 0 20px var(--primary-glow);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 15px var(--primary-glow);
    border-color: rgba(0, 229, 255, 0.3);
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), #00b4d8);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.6);
    color: #000;
}

/* Typography */
h1, h2, h3, h4 { font-family: 'Cairo', sans-serif; }
h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
h2 { font-size: 2.5rem; font-weight: 700; margin-bottom: 1.5rem; }
h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; color: var(--primary); }
p { color: var(--text-muted); font-size: 1.1rem; }

/* Section Base */
section {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: transparent;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.5rem 5%;
}

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

.header nav a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}
.header nav a:not(.btn-primary):hover { color: var(--primary); }

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 8rem;
}

.hero .badge {
    background: rgba(0, 229, 255, 0.1);
    color: var(--primary);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
    border: 1px solid rgba(0, 229, 255, 0.2);
    display: inline-block;
    margin-bottom: 1.5rem;
}

.hero .subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 3rem auto;
}

.hero-stats {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.stat-glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stat-glass .icon { font-size: 1.5rem; }

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.full-width { grid-column: 1 / -1; }

.stats-row {
    display: flex;
    justify-content: space-around;
    text-align: center;
    padding: 2.5rem !important;
}

.stats-row h4 {
    font-size: 3rem;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px var(--primary-glow);
}

/* Cards Grid (Problem, Marketing) */
.cards-grid, .marketing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.warning { border-top: 4px solid #f59e0b; }
.big-icon { font-size: 3rem; display: block; margin-bottom: 1rem; }

/* Solution Section */
.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.icon-circle {
    width: 60px;
    height: 60px;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: 0 0 15px var(--primary-glow) inset;
}

/* Tracks Section */
.tracks-container {
    padding: 0 !important;
    overflow: hidden;
}

.tracks-nav {
    display: flex;
    background: rgba(0,0,0,0.2);
    border-bottom: 1px solid var(--glass-border);
    overflow-x: auto;
}

.track-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 1.5rem 1rem;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.track-tab:hover { color: var(--text); background: rgba(255,255,255,0.02); }
.track-tab.active {
    color: var(--primary);
    background: rgba(0, 229, 255, 0.05);
    border-bottom: 3px solid var(--primary);
}

.tracks-content { padding: 3rem; }
.track-pane { display: none; animation: fadeIn 0.5s; }
.track-pane.active { display: block; }
.track-hours { margin-bottom: 2rem; font-weight: 600; color: #fff; }

.track-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.detail-box h4 { margin-bottom: 0.5rem; font-size: 1.2rem; }
.detail-box ul { padding-right: 1.5rem; color: var(--text-muted); }
.detail-box li { margin-bottom: 0.25rem; }

/* Sponsors Section */
.sponsor-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.styled-list { list-style: none; padding: 0; }
.styled-list li {
    position: relative;
    padding-right: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}
.styled-list li::before {
    content: '■';
    position: absolute;
    right: 0;
    color: var(--primary);
    font-size: 0.8rem;
    top: 5px;
}

.benefits-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}
.benefit {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255,255,255,0.03);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.05);
}
.benefit .check {
    color: #10b981;
    font-size: 1.2rem;
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Marketing Section */
.marketing-grid .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

/* Animations */
.slide {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 2rem; }
    .hero .subtitle { font-size: 1.1rem; }
    .header nav { display: none; }
    .sponsor-layout { grid-template-columns: 1fr; }
    .tracks-content { padding: 1.5rem; }
    section { padding: 4rem 1rem; }
    .stats-row { flex-direction: column; gap: 1.5rem; padding: 1.5rem !important; }
    .hero-stats { flex-direction: column; width: 100%; }
    .stat-glass { justify-content: center; }
    .tracks-nav { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .track-tab { padding: 1rem; font-size: 1rem; }
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-right: 40px;
}
.timeline::after {
    content: "";
    position: absolute;
    width: 2px;
    background: var(--primary);
    top: 0;
    bottom: 0;
    right: 15px;
}
.timeline-item {
    padding: 10px 0 20px 0;
    position: relative;
    width: 100%;
}
.timeline-item::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    right: -34px;
    background: var(--bg-color);
    border: 4px solid var(--primary);
    top: 20px;
    border-radius: 50%;
    z-index: 1;
}
.timeline-item.right { left: auto; }
.timeline-item.left { left: auto; text-align: right; }
.timeline-item.right::after { left: auto; }
.timeline-content {
    padding: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

@media (max-width: 768px) {
    .timeline::after { right: 15px; }
    .timeline-item { padding-right: 0; padding-left: 0; width: 100%; }
    .timeline-item::after { right: -34px; }
    .timeline-item.left { text-align: right; }
    .timeline-item.right { text-align: right; }
}

/* Calendar */
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; margin-top: 1rem; }
.calendar-day { background: rgba(255,255,255,0.05); border-radius: 8px; padding: 10px; text-align: center; border: 1px solid rgba(255,255,255,0.1); }
.calendar-day.active-day { background: rgba(0, 229, 255, 0.2); border-color: var(--primary); color: #fff; font-weight: bold; }
.calendar-header { font-weight: bold; color: var(--text-muted); }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2rem; }
.price-tag { font-size: 3rem; color: var(--primary); font-weight: 800; margin: 1rem 0; }
.price-tag span { font-size: 1.2rem; color: var(--text-muted); }

/* FAQ */
.faq-item { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 12px; margin-bottom: 1rem; overflow: hidden; }
.faq-question { padding: 1.5rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: bold; font-size: 1.1rem; }
.faq-answer { padding: 0 1.5rem; max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; color: var(--text-muted); }
.faq-item.active .faq-answer { padding: 0 1.5rem 1.5rem 1.5rem; max-height: 500px; }
.faq-icon { color: var(--primary); font-size: 1.5rem; }