/* CSS Reset & Variable Design System */
:root {
    --bg-dark: #0a0d14;
    --bg-card: rgba(20, 28, 46, 0.7);
    --bg-card-hover: rgba(26, 36, 60, 0.85);
    --border-color: rgba(0, 242, 254, 0.15);
    --border-hover: rgba(0, 242, 254, 0.4);
    
    --primary-cyan: #00f2fe;
    --primary-cyan-subtle: #00d2ff;
    --accent-purple: #7f00ff;
    --accent-purple-deep: #581c87;
    
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --text-silver: #e0e6ed;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

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

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
}

body {
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

/* Background Glow Effects */
.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: -1;
}

.bg-glow-1 {
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(circle, rgba(0,242,254,0.18) 0%, rgba(127,0,255,0.12) 100%);
}

.bg-glow-2 {
    top: 50%;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(127,0,255,0.15) 0%, rgba(0,242,254,0.05) 100%);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography & Utilities */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: var(--transition);
}

.glass-panel:hover {
    border-color: var(--border-hover);
}

/* Navigation Header */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 13, 20, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 1px;
    color: var(--text-main);
}

.brand-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--primary-cyan-subtle);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-cyan);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, #00a8ff 100%);
    color: #040914;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 242, 254, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-cyan);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

.icon-arrow {
    width: 18px;
    height: 18px;
}

/* Hero Section */
.hero-section {
    padding: 80px 0 60px 0;
    text-align: center;
}

.badge-hud {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 20px;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary-cyan);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(0, 242, 254, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary-cyan-subtle);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-subtitle {
    max-width: 780px;
    margin: 0 auto 36px auto;
    font-size: 1.15rem;
    color: var(--text-muted);
}

.hero-cta-group {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 50px;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
}

.metric-card {
    padding: 24px;
    text-align: center;
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Section Shared */
.section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 50px;
}

.section-header.center {
    text-align: center;
}

.section-tag {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--primary-cyan);
    margin-bottom: 8px;
    display: block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto;
}

/* Curriculum Accordion */
.modules-accordion {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.module-card {
    overflow: hidden;
}

.module-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    cursor: pointer;
}

.module-number {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-cyan);
}

.module-info {
    flex: 1;
}

.module-info h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.module-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.accordion-icon {
    background: none;
    border: none;
    color: var(--primary-cyan);
    font-size: 1.5rem;
    font-weight: 600;
    cursor: pointer;
}

.module-body {
    padding: 0 24px 24px 64px;
    display: none;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 10px;
    padding-top: 16px;
}

.module-card.active .module-body {
    display: block;
}

.module-card.active .accordion-icon {
    transform: rotate(45deg);
}

.module-body ul {
    list-style: none;
}

.module-body li {
    font-size: 0.95rem;
    color: var(--text-silver);
    margin-bottom: 10px;
    position: relative;
    padding-left: 20px;
}

.module-body li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--primary-cyan);
}

/* Deliverables Grid */
.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.deliverable-card {
    padding: 32px;
    text-align: left;
}

.deliverable-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.deliverable-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}

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

/* Waitlist CTA Section */
.waitlist-cta-section {
    padding: 40px 0 80px 0;
}

.waitlist-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 32px;
}

/* FAQ Grid */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

.faq-card {
    padding: 24px;
}

.faq-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--primary-cyan-subtle);
}

.faq-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    margin-top: 60px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
}

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

/* Modal Google Sheets */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 13, 0.85);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal-card {
    max-width: 520px;
    width: 100%;
    padding: 36px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.75rem;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--primary-cyan);
}

.modal-header {
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.modal-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-silver);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(10, 13, 20, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.form-feedback {
    margin-bottom: 16px;
    font-size: 0.85rem;
    display: none;
}

.form-feedback.success {
    display: block;
    color: #4ade80;
}

.form-feedback.error {
    display: block;
    color: #f87171;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-title { font-size: 2.25rem; }
    .hero-cta-group { flex-direction: column; }
    .module-body { padding-left: 24px; }
    .faq-grid { grid-template-columns: 1fr; }
}