/* =============== ROOT VARIABLES - BLACK & WHITE THEME =============== */
:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #111111;
    --text-primary: #ffffff;
    --text-secondary: #e5e5e5;
    --text-muted: #888888;
    --border-color: #2a2a2a;
    
    --primary: #ffffff;
    --primary-dark: #dddddd;
    --secondary: #666666;
    --secondary-dark: #444444;
    --success: #555555;
    --danger: #888888;
    --warning: #aaaaaa;
    --info: #cccccc;
    
    --gradient-primary: linear-gradient(135deg, #ffffff, #888888);
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-card: #ffffff;
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #666666;
    --border-color: #e0e0e0;
    
    --primary: #000000;
    --primary-dark: #333333;
    --secondary: #999999;
    --secondary-dark: #777777;
    --success: #444444;
    --danger: #666666;
    --warning: #888888;
    --info: #aaaaaa;
    
    --gradient-primary: linear-gradient(135deg, #000000, #666666);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background 0.2s ease, color 0.2s ease;
    overflow-x: hidden;
    font-size: 14px;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 1.8rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.75rem; }

p {
    line-height: 1.5;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0.8rem 5%;
    background: var(--bg-primary);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    background: rgba(0,0,0,0.9);
}

[data-theme="light"] .navbar {
    background: rgba(255,255,255,0.95);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo img {
    height: 34px;
    width: auto;
}

.logo span {
    font-size: 1.2rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
}

.nav-links a:hover {
    color: var(--primary);
    opacity: 0.7;
}

.nav-theme-toggle, .theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.2s;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 280px;
    height: 100vh;
    background: var(--bg-primary);
    z-index: 999;
    padding: 5rem 1.5rem 2rem;
    transition: right 0.25s ease;
    border-left: 1px solid var(--border-color);
}

.mobile-menu.active { right: 0; }

.mobile-menu a, .mobile-theme-toggle {
    display: block;
    padding: 0.8rem 0;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

.mobile-theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
}

.mobile-theme-toggle i { color: var(--primary); }

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 998;
    display: none;
}

.overlay.active { display: block; }
/* Hero Background Image */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../assets/hero-bg-dark.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    opacity: 0.15;
    pointer-events: none;
}

[data-theme="light"] .hero-bg {
    background-image: url('../assets/hero-bg-light.png');
    opacity: 0.12;
}
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 5% 4rem;
    gap: 3rem;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}

.hero-content { flex: 1; min-width: 280px; }.hero-content { 
    flex: 1; 
    min-width: 280px; 
    position: relative; 
    z-index: 2; 
}
.badge {
    display: inline-block;
    background: var(--bg-secondary);
    padding: 0.25rem 0.8rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--text-primary);
    border: 0.5px solid var(--border-color);
}

.hero-content p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.typed-text {
    color: var(--primary);
    border-right: 1.5px solid var(--primary);
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% { border-color: var(--primary); }
    50% { border-color: transparent; }
}

.cta-group {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-bottom: 1.8rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat-item h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-item p {
    font-size: 0.75rem;
    margin-top: 0.2rem;
}

.hero::after {
    content: '';
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
}

@media (max-width: 768px) {
    .hero::after {
        display: none;
    }
}

.features {
    padding: 4rem 5%;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-3px);
}

.feature-icon {
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.feature-icon i { font-size: 1.3rem; color: var(--primary); }

.how-it-works { padding: 4rem 5%; }

.steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
}

.step {
    flex: 1;
    text-align: center;
    min-width: 160px;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 auto 0.8rem;
    color: var(--text-primary);
}

.pricing-section { padding: 4rem 5%; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.pricing-card:hover {
    transform: translateY(-3px);
}

.pricing-card.popular {
    border: 1.5px solid var(--primary);
}

.popular-badge {
    background: var(--primary);
    color: var(--bg-primary);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.65rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.8rem;
}

.pricing-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    border: 1px solid var(--border-color);
}

.pricing-icon i { font-size: 1.5rem; color: var(--primary); }

.price {
    font-size: 2rem;
    font-weight: 600;
    margin: 0.8rem 0;
    color: var(--text-primary);
}

.price span {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin: 1rem 0;
}

.pricing-features li {
    font-size: 0.8rem;
    padding: 0.4rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.pricing-features li i {
    color: var(--primary);
    width: 18px;
}

.coin-info {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.8rem;
    padding: 0.8rem;
    background: var(--bg-secondary);
    border-radius: 40px;
    display: inline-block;
    width: auto;
    margin-left: auto;
    margin-right: auto;
}

.faq {
    padding: 4rem 5%;
    background: var(--bg-secondary);
}

.accordion-item {
    background: var(--bg-card);
    margin-bottom: 0.8rem;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.accordion-header {
    padding: 1rem 1.2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.accordion-header i { transition: transform 0.2s; }

.accordion-item.active .accordion-header i { transform: rotate(180deg); }

.accordion-content {
    max-height: 0;
    padding: 0 1.2rem;
    overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s;
}

.accordion-item.active .accordion-content {
    max-height: 200px;
    padding: 0 1.2rem 1rem;
}

.cta-section {
    padding: 4rem 5%;
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-section h2, .cta-section p { color: var(--text-primary); }

.cta-section .btn-outline {
    border-color: var(--primary);
    color: var(--primary);
}

.cta-section .btn-outline:hover {
    background: var(--primary);
    color: var(--bg-primary);
}

.footer {
    padding: 3rem 5% 2rem;
    background: var(--bg-primary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.footer-section { flex: 1; min-width: 160px; }

.footer-section h4 {
    margin-bottom: 0.8rem;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.footer-section a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.4rem;
    font-size: 0.75rem;
}

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

.social-links {
    display: flex;
    gap: 0.8rem;
    margin-top: 0.8rem;
}

.social-links a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.copyright {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.7rem;
}

.btn {
    padding: 0.5rem 1.2rem;
    border-radius: 40px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-size: 0.8rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s;
}
.btn-primary {
    background: var(--primary);
    color: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--bg-primary);
}

.theme-toggle {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem !important; }
    h2 { font-size: 1.4rem !important; margin-bottom: 1rem !important; }
    h3 { font-size: 1.1rem !important; }
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .hero { flex-direction: column; text-align: center; padding-top: 5rem !important; }
    .hero-content { text-align: center; }
    .cta-group { justify-content: center; }
    .hero-stats { justify-content: center; gap: 1.5rem !important; }
    .steps { flex-direction: column; align-items: center; }
    .features-grid { grid-template-columns: 1fr !important; }
    .footer-content { flex-direction: column; text-align: center; }
    .social-links { justify-content: center; }
    .features, .how-it-works, .faq, .pricing-section { padding: 2.5rem 1rem !important; }
    .section-header { margin-bottom: 1.5rem !important; }
}

@media (max-width: 480px) {
    h1 { font-size: 1.6rem !important; }
    h2 { font-size: 1.2rem !important; }
    .stat-item h4 { font-size: 1.1rem !important; }
    .btn { padding: 0.4rem 1rem !important; font-size: 0.75rem !important; }
    .hero-stats { gap: 1rem !important; }
}

/* Notification Styles */
.notification-slide {
    position: fixed;
    top: 20px;
    right: -400px;
    z-index: 10000;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: right 0.25s ease-in-out;
    max-width: 320px;
    min-width: 220px;
}

.notification-success {
    background: #222222;
    color: white;
    border-left: 3px solid #ffffff;
}
.notification-error {
    background: #222222;
    color: white;
    border-left: 3px solid #aaaaaa;
}
.notification-info {
    background: #222222;
    color: white;
    border-left: 3px solid #cccccc;
}
[data-theme="light"] .notification-success,
[data-theme="light"] .notification-error,
[data-theme="light"] .notification-info {
    background: #f5f5f5;
    color: #000000;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 8px;
}
.notification-content i { font-size: 14px; }

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

@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(-20px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes modalSlideOut {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to { opacity: 0; transform: translateY(20px) scale(0.96); }
}

/* Background - no glow, just subtle */
body {
    background: var(--bg-primary);
    position: relative;
}

/* Glass effect for cards */
.detail-card, .card {
    backdrop-filter: blur(10px);
    background: var(--bg-secondary);
    transition: all 0.2s;
}
/* Fix for Get Started button visibility */
.btn-primary {
    background: var(--primary) !important;
    color: var(--bg-primary) !important;
    border: 1px solid var(--border-color) !important;
}

.nav-links .btn-primary {
    background: var(--primary) !important;
    color: var(--bg-primary) !important;
}

[data-theme="light"] .btn-primary {
    background: var(--primary) !important;
    color: var(--bg-primary) !important;
    border: 1px solid var(--border-color) !important;
}

/* Floating particles background */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.05;
    animation: float-particle linear infinite;
    pointer-events: none;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.05;
    }
    90% {
        opacity: 0.05;
    }
    100% {
        transform: translateY(-100vh) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

@keyframes float-particle-alt {
    0% {
        transform: translateY(100vh) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.03;
    }
    90% {
        opacity: 0.03;
    }
    100% {
        transform: translateY(-100vh) translateX(-100px) rotate(-360deg);
        opacity: 0;
    }
}

.floating-shape {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.02) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: float-shape 20s ease-in-out infinite;
}

@keyframes float-shape {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.95);
    }
}

.floating-shape-2 {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.01) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: float-shape-2 25s ease-in-out infinite;
}

@keyframes float-shape-2 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(-80px, -80px) scale(1.15);
    }
}