:root {
    --primary-accent: #00d9ff;
    --secondary-accent: #ff006e;
    --tertiary-accent: #8338ec;
    --dark-base: #0a0a0f;
    --dark-surface: #141420;
    --dark-elevated: #1e1e2e;
    --dark-border: #2a2a3a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    --success-glow: #00ff88;
    --warning-glow: #ffaa00;
    --danger-glow: #ff3366;
}

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

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: var(--dark-base);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    font-size: 16px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.98) 0%, rgba(20, 20, 32, 0.95) 100%);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--dark-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo-wrapper a {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-accent);
    text-decoration: none;
    letter-spacing: -0.5px;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--primary-accent), var(--tertiary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.logo-wrapper a:hover {
    filter: brightness(1.2);
}

.main-navigation {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.75rem;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-accent);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.menu-close-btn {
    display: none;
}

/* Hero Section */
.hero-zone {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, rgba(0, 217, 255, 0.08) 0%, transparent 70%),
                linear-gradient(180deg, var(--dark-base) 0%, var(--dark-surface) 100%);
    overflow: hidden;
    padding: 4rem 0;
}

.hero-zone::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(131, 56, 236, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
}

.hero-title-main {
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--primary-accent) 0%, var(--tertiary-accent) 50%, var(--secondary-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGlow 3s ease-in-out infinite alternate;
}

@keyframes textGlow {
    0% { filter: drop-shadow(0 0 20px rgba(0, 217, 255, 0.3)); }
    100% { filter: drop-shadow(0 0 40px rgba(131, 56, 236, 0.5)); }
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.125rem 2.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-primary {
    background: linear-gradient(135deg, var(--primary-accent), var(--tertiary-accent));
    color: var(--dark-base);
    border-color: var(--primary-accent);
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 217, 255, 0.4);
}

.cta-secondary {
    background: transparent;
    color: var(--primary-accent);
    border-color: var(--primary-accent);
}

.cta-secondary:hover {
    background: rgba(0, 217, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 217, 255, 0.2);
}

.cta-tertiary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--dark-border);
}

.cta-tertiary:hover {
    border-color: var(--secondary-accent);
    color: var(--secondary-accent);
    transform: translateY(-3px);
}

/* Section Styles */
.content-section {
    padding: 6rem 0;
    position: relative;
}

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

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Vertical Card Deck */
.vertical-deck {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.deck-item {
    background: var(--dark-elevated);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.deck-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-accent), var(--tertiary-accent));
    transform: scaleY(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.deck-item:hover {
    transform: translateX(8px);
    border-color: var(--primary-accent);
    box-shadow: -8px 0 24px rgba(0, 217, 255, 0.15);
}

.deck-item:hover::before {
    transform: scaleY(1);
}

.deck-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--primary-accent);
}

.deck-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Labeled List */
.labeled-list {
    display: grid;
    gap: 1.25rem;
    max-width: 900px;
    margin: 0 auto;
}

.list-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--dark-elevated);
    border-radius: 10px;
    border-left: 3px solid var(--tertiary-accent);
    transition: all 0.3s ease;
}

.list-item:hover {
    background: var(--dark-surface);
    transform: translateX(4px);
    border-left-color: var(--primary-accent);
}

.item-label {
    min-width: 120px;
    font-weight: 700;
    color: var(--primary-accent);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.item-content {
    flex: 1;
    color: var(--text-secondary);
}

/* Q&A Blocks */
.qa-container {
    max-width: 850px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.qa-block {
    background: var(--dark-elevated);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
    transition: all 0.3s ease;
}

.qa-block:hover {
    border-color: var(--secondary-accent);
    box-shadow: 0 8px 24px rgba(255, 0, 110, 0.1);
}

.qa-question {
    padding: 1.75rem;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(131, 56, 236, 0.05));
    border-bottom: 1px solid var(--dark-border);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.qa-answer {
    padding: 1.75rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Slider */
.slider-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 12px;
}

.slider-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slider-item {
    min-width: 100%;
    padding: 3rem 2rem;
    background: var(--dark-elevated);
    border: 1px solid var(--dark-border);
    text-align: center;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--primary-accent);
    background: transparent;
    color: var(--primary-accent);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.slider-btn:hover {
    background: var(--primary-accent);
    color: var(--dark-base);
    transform: scale(1.1);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.stat-box {
    text-align: center;
    padding: 2rem;
    background: var(--dark-elevated);
    border-radius: 12px;
    border: 1px solid var(--dark-border);
    transition: all 0.3s ease;
}

.stat-box:hover {
    border-color: var(--primary-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 217, 255, 0.2);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-accent), var(--tertiary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Content Blocks */
.content-block {
    margin-bottom: 3.5rem;
}

.content-block h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--primary-accent);
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--dark-border);
}

.content-block h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.content-block p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.content-block ul,
.content-block ol {
    color: var(--text-secondary);
    margin-left: 2rem;
    margin-bottom: 1.5rem;
    line-height: 2;
    padding-left: 1rem;
}

.content-block ul {
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}

.content-block ul li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
}

.content-block ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-accent);
    font-weight: bold;
    font-size: 1.2rem;
}

.content-block ol {
    counter-reset: item;
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}

.content-block ol li {
    counter-increment: item;
    margin-bottom: 1rem;
    padding-left: 2.5rem;
    position: relative;
}

.content-block ol li::before {
    content: counter(item) '.';
    position: absolute;
    left: 0;
    color: var(--primary-accent);
    font-weight: 700;
    font-size: 1.1rem;
}

.content-block li {
    margin-bottom: 1rem;
}

.content-block strong {
    color: var(--text-primary);
    font-weight: 600;
}

.content-image {
    margin: 2rem 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
}

.content-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.content-image:hover img {
    transform: scale(1.02);
}

/* Page Header */
.page-header {
    padding: 5rem 0 3rem;
    text-align: center;
    background: linear-gradient(180deg, var(--dark-base) 0%, transparent 100%);
    border-bottom: 1px solid var(--dark-border);
}

.page-header h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-accent), var(--tertiary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

/* Contact Info */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.contact-card {
    background: var(--dark-elevated);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: var(--primary-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 217, 255, 0.15);
}

.contact-card h3 {
    color: var(--primary-accent);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-card a {
    color: var(--secondary-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-card a:hover {
    color: var(--primary-accent);
}

/* Forms */
.contact-form {
    max-width: 650px;
    margin: 3rem auto;
    background: var(--dark-elevated);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 160px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: normal;
    line-height: 1.6;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    margin-top: 0.25rem;
    cursor: pointer;
    width: 20px;
    height: 20px;
    min-width: 20px;
    accent-color: var(--primary-accent);
}

.checkbox-label span {
    flex: 1;
}

.btn-submit {
    width: 100%;
    padding: 1.125rem;
    background: linear-gradient(135deg, var(--primary-accent), var(--tertiary-accent));
    color: var(--dark-base);
    border: none;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 217, 255, 0.3);
}

/* Footer */
.site-footer {
    background: var(--dark-surface);
    border-top: 1px solid var(--dark-border);
    padding: 4rem 0 2rem;
    margin-top: 6rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: var(--primary-accent);
    margin-bottom: 1.25rem;
    font-size: 1.25rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--dark-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-navigation {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: var(--dark-surface);
        transition: left 0.3s ease;
        z-index: 9999;
        overflow-y: auto;
    }

    .main-navigation.active {
        left: 0;
    }

    .menu-close-btn {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        width: 44px;
        height: 44px;
        background: transparent;
        border: 2px solid var(--primary-accent);
        border-radius: 8px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 10000;
        transition: all 0.3s ease;
    }

    .menu-close-btn:hover {
        background: var(--primary-accent);
        transform: rotate(90deg);
    }

    .menu-close-btn::before,
    .menu-close-btn::after {
        content: '';
        position: absolute;
        width: 24px;
        height: 2px;
        background: var(--primary-accent);
        border-radius: 1px;
        transition: all 0.3s ease;
    }

    .menu-close-btn::before {
        transform: rotate(45deg);
    }

    .menu-close-btn::after {
        transform: rotate(-45deg);
    }

    .menu-close-btn:hover::before,
    .menu-close-btn:hover::after {
        background: var(--dark-base);
    }

    .nav-list {
        flex-direction: column;
        padding: 5rem 2rem 3rem;
        gap: 0;
        height: 100%;
    }

    .nav-list li {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: 1.5rem 1.5rem;
        border-bottom: 1px solid var(--dark-border);
        font-size: 1.15rem;
        font-weight: 500;
    }

    .hero-zone {
        min-height: 70vh;
        padding: 3rem 0;
    }

    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
    }

    .content-section {
        padding: 4rem 0;
    }

    .section-header {
        margin-bottom: 3rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}