/* ===================================
   TORNADO CASH - Official Style
   Dark theme with green accent
   =================================== */

   :root {
    --bg-primary: #161616;
    --bg-secondary: #1f1f1f;
    --bg-card: #242424;
    --bg-card-hover: #2a2a2a;
    
    --accent-green: #94febf;
    --accent-purple: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #94febf 0%, #6ee7b7 100%);
    
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(22, 22, 22, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #000;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
}

.btn-launch {
    background: var(--accent-gradient);
    color: #000;
    padding: 10px 20px;
    font-size: 13px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 0%, rgba(148, 254, 191, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(167, 139, 250, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
}

.hero-content h1 {
    margin-bottom: 24px;
    background: linear-gradient(135deg, #fff 0%, #94febf 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text {
    color: var(--text-secondary);
    font-size: 17px;
    margin-bottom: 16px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-img {
    width: 100%;
    max-width: 450px;
    height: auto;
    filter: drop-shadow(0 0 60px rgba(148, 254, 191, 0.2));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===== SECTION COMMON ===== */
.section-title {
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
}

/* ===== FEATURES ===== */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 20px;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
    padding: 100px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.step {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.step:hover {
    border-color: rgba(148, 254, 191, 0.3);
}

.step-number {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    color: #000;
    font-weight: 700;
    font-size: 18px;
    border-radius: var(--radius-sm);
}

.step-content h3 {
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* ===== CEREMONY ===== */
.ceremony {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.ceremony-container {
    max-width: 800px;
}

.ceremony-content {
    text-align: center;
    padding: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.ceremony-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
}

.ceremony-content h2 {
    margin-bottom: 16px;
}

.ceremony-content p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

/* ===== FAQ ===== */
.faq {
    padding: 100px 0;
    background: var(--bg-primary);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.faq-item {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(148, 254, 191, 0.3);
}

.faq-item h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.faq-item h3::before {
    content: "?";
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: var(--accent-gradient);
    color: #000;
    font-weight: 700;
    font-size: 14px;
    border-radius: var(--radius-sm);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.faq-item strong {
    color: var(--text-primary);
}

.faq-item em {
    color: var(--accent-green);
    font-style: normal;
}

/* ===== COMMUNITY ===== */
.community {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.community-card {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.community-card:hover {
    border-color: var(--border-light);
}

.community-card img {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
}

.community-card h3 {
    margin-bottom: 12px;
}

.community-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* ===== TECH ===== */
.tech {
    padding: 100px 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.tech-item {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
}

.tech-label {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(148, 254, 191, 0.1);
    color: var(--accent-green);
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.tech-item p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ===== CTA ===== */
.cta {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, #1a1a1a 100%);
}

.cta-container {
    text-align: center;
    max-width: 600px;
}

.cta h2 {
    margin-bottom: 16px;
}

.cta p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 17px;
}

/* ===== FOOTER ===== */
.footer {
    padding: 60px 0 40px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.footer-logo {
    height: 36px;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
}

.footer-nav {
    display: flex;
    justify-content: flex-end;
    gap: 80px;
}

.footer-col h4 {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent-green);
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-img {
        max-width: 300px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-nav {
        justify-content: center;
        flex-wrap: wrap;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        padding: 20px;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .btn-launch {
        display: none;
    }
    
    .features-grid,
    .steps,
    .community-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .feature-card,
    .step,
    .community-card {
        padding: 24px;
    }
}