:root {
    --bg-primary: #0c0f14;
    --bg-secondary: #151e26;
    --bg-tertiary: #1f2a33;
    --bg-panel: #1a232c;
    --surface-dark: #212d38;
    --surface-mid: #2f3d4a;
    --border-subtle: #314351;
    --border-strong: #405b6b;
    --accent-primary: #3cbef2;
    --accent-glow: rgba(60, 190, 242, 0.2);
    --accent-secondary: #64dcff;
    --text-primary: #e8f0fe;
    --text-secondary: #c0d4e6;
    --text-tertiary: #9ab3cc;
    --text-muted: #6f8ca3;
    --success: #2ecc71;
    --warning: #f39c12;
    --error: #ff6b6b;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.6;
    letter-spacing: 0.02em;
    padding: 24px;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(60, 190, 242, 0.03) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(100, 220, 255, 0.03) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    background: rgba(12, 15, 20, 0.92);
    backdrop-filter: blur(4px);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(60, 190, 242, 0.1) inset;
}

.retro-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
}

.retro-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), transparent);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.pixel-logo {
    width: 165px;
    height: 60px;
    object-fit: contain;
    image-rendering: crisp-edges;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
    background: var(--bg-secondary);
    padding: 6px;
    border-radius: 8px;
    border: 1px solid var(--border-strong);
    transition: border-color 0.2s;
}

.pixel-logo:hover {
    border-color: var(--accent-primary);
}

.badge-container {
    display: flex;
    gap: 10px;
}

.badge {
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 20px;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    transition: all 0.15s;
}

.badge.verified {
    border-color: var(--success);
    color: var(--success);
    background: rgba(46, 204, 113, 0.05);
}

.badge.secure {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(60, 190, 242, 0.05);
}

.status-panel {
    display: flex;
    gap: 20px;
    background: var(--bg-panel);
    padding: 10px 20px;
    border-radius: 30px;
    border: 1px solid var(--border-subtle);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.stat-item {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-label {
    color: var(--text-tertiary);
}

.stat-value {
    color: var(--accent-secondary);
    font-weight: 600;
}

.marquee-container {
    background: var(--bg-secondary);
    border-radius: 40px;
    padding: 12px 20px;
    margin-bottom: 28px;
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    position: relative;
}

.marquee-container::before,
.marquee-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 60px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.marquee-container::before {
    left: 0;
    background: linear-gradient(90deg, var(--bg-secondary), transparent);
}

.marquee-container::after {
    right: 0;
    background: linear-gradient(270deg, var(--bg-secondary), transparent);
}

.marquee {
    white-space: nowrap;
    animation: scroll 28s linear infinite;
    font-size: 14px;
    color: var(--accent-secondary);
    letter-spacing: 2px;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.main-nav {
    display: flex;
    gap: 4px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    background: var(--bg-secondary);
    padding: 6px;
    border-radius: 40px;
    border: 1px solid var(--border-subtle);
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 20px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-radius: 30px;
    transition: all 0.2s cubic-bezier(0.2, 0.9, 0.3, 1);
    flex: 0 1 auto;
}

.nav-btn.active {
    background: var(--surface-mid);
    color: var(--accent-primary);
    box-shadow: 0 2px 8px rgba(60, 190, 242, 0.3);
}

.nav-btn:hover:not(.active) {
    color: var(--text-primary);
    background: var(--surface-dark);
}

.tab-pane {
    display: none;
    animation: fadeSlide 0.25s ease;
}

@keyframes fadeSlide {
    from { opacity: 0.6; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-pane.active {
    display: block;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-subtle);
}

.section-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 2.5px;
}

.title-accent {
    color: var(--accent-primary);
    font-size: 22px;
    line-height: 1;
}

.title-badge {
    background: var(--bg-tertiary);
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 11px;
    color: var(--text-tertiary);
    border: 1px solid var(--border-subtle);
    margin-left: auto;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.link-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 18px;
    transition: all 0.2s;
    animation: cardFade 0.4s forwards;
    opacity: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

@keyframes cardFade {
    to { opacity: 1; }
}

.link-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 22px -8px rgba(60, 190, 242, 0.3);
    background: var(--surface-dark);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    padding-bottom: 8px;
    border-bottom: 1px dotted var(--border-subtle);
}

.mirror-badge {
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: 20px;
    color: var(--accent-secondary);
    font-weight: 600;
}

.ping {
    background: rgba(46, 204, 113, 0.1);
    padding: 4px 8px;
    border-radius: 20px;
    color: var(--success);
    font-size: 11px;
}

.link-url {
    word-break: break-all;
    font-size: 14px;
    cursor: pointer;
    padding: 10px 0;
    color: var(--text-primary);
    font-weight: 500;
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 12px;
    border: 1px solid var(--border-subtle);
    transition: all 0.15s;
    font-family: 'Courier New', monospace;
}

.link-url:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(60, 190, 242, 0.05);
}

.copy-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    color: var(--accent-primary);
    font-family: var(--font-mono);
    padding: 10px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.15s;
}

.copy-btn:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
}

.card-footer {
    display: flex;
    gap: 10px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.feature-tag {
    background: var(--bg-secondary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 10px;
    color: var(--text-tertiary);
    border: 1px solid var(--border-subtle);
}

.disclaimer-panel {
    background: rgba(255, 107, 107, 0.03);
    border-left: 3px solid var(--error);
    padding: 18px 24px;
    border-radius: 12px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-top: 24px;
    border: 1px solid rgba(255, 107, 107, 0.2);
}

.verify-panel {
    background: var(--bg-panel);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-subtle);
}

.verify-prompt {
    color: var(--text-tertiary);
    margin-bottom: 24px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.verify-prompt::before {
    content: '>';
    color: var(--accent-primary);
    font-size: 18px;
    font-weight: bold;
}

.input-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.input-prefix {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    padding: 14px 18px;
    border-radius: 40px;
    border: 1px solid var(--border-subtle);
    font-weight: 600;
}

.verify-input {
    flex: 1;
    min-width: 250px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 40px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    padding: 14px 22px;
    font-size: 14px;
    transition: all 0.2s;
}

.verify-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.verify-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-family: var(--font-mono);
    padding: 14px 28px;
    border-radius: 40px;
    cursor: pointer;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.15s;
}

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

.validation-result {
    margin: 24px 0;
    padding: 16px 24px;
    border-radius: 40px;
    font-weight: 600;
    display: none;
    animation: resultPop 0.2s;
}

@keyframes resultPop {
    0% { transform: scale(0.96); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.validation-result.success {
    display: block;
    background: rgba(46, 204, 113, 0.08);
    border: 1px solid var(--success);
    color: var(--success);
}

.validation-result.error {
    display: block;
    background: rgba(255, 107, 107, 0.08);
    border: 1px solid var(--error);
    color: var(--error);
}

.hash-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 15px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-subtle);
}

.hash-label {
    color: var(--text-tertiary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hash-item {
    background: var(--bg-secondary);
    padding: 6px 14px;
    border-radius: 30px;
    font-family: monospace;
    font-size: 12px;
    border: 1px solid var(--border-subtle);
    color: var(--accent-secondary);
}

.review-container {
    background: var(--bg-panel);
    border-radius: 20px;
    padding: 28px;
    border: 1px solid var(--border-subtle);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
    background: var(--bg-secondary);
    padding: 22px;
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
}

.info-cell {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.info-label {
    font-size: 11px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 500;
}

.review-block {
    margin-bottom: 28px;
}

.review-block h3 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.review-block h3::before {
    content: '◆';
    color: var(--accent-primary);
    font-size: 14px;
}

.review-block p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 24px 0;
}

.pros-box, .cons-box {
    background: var(--bg-secondary);
    padding: 22px;
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
}

.pros-title, .cons-title {
    display: block;
    margin-bottom: 16px;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 1px;
}

.pros-title { color: var(--success); }
.cons-title { color: var(--error); }

.pros-list, .cons-list {
    list-style: none;
    padding: 0;
}

.pros-list li, .cons-list li {
    padding: 6px 0 6px 24px;
    position: relative;
    font-size: 14px;
}

.pros-list li::before {
    content: '+';
    color: var(--success);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.cons-list li::before {
    content: '−';
    color: var(--error);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.guide-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.guide-step {
    display: flex;
    gap: 24px;
    background: var(--bg-panel);
    padding: 24px;
    border-radius: 20px;
    border: 1px solid var(--border-subtle);
    transition: border-color 0.2s;
}

.guide-step:hover {
    border-color: var(--accent-primary);
}

.step-marker {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-primary);
    opacity: 0.5;
    line-height: 1;
    min-width: 60px;
}

.step-content h4 {
    color: var(--accent-secondary);
    margin-bottom: 12px;
    font-size: 18px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

.faq-card {
    background: var(--bg-panel);
    padding: 24px;
    border-radius: 20px;
    border: 1px solid var(--border-subtle);
    transition: border-color 0.2s;
}

.faq-card:hover {
    border-color: var(--accent-primary);
}

.faq-question {
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 16px;
    font-size: 16px;
    padding-bottom: 12px;
    border-bottom: 1px dotted var(--border-subtle);
}

.faq-answer {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
}

.site-footer {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--border-subtle);
}

.footer-keywords {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px 24px;
    margin-bottom: 20px;
}

.keyword-item {
    color: var(--text-tertiary);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 0;
    border-bottom: 1px dotted transparent;
    transition: border-color 0.2s;
}

.keyword-item:hover {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.footer-copyright {
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.notification {
    position: fixed;
    top: 24px;
    right: 24px;
    background: var(--surface-dark);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    border-radius: 40px;
    padding: 14px 28px;
    z-index: 10000;
    transform: translateX(120%);
    transition: transform 0.25s cubic-bezier(0.2, 0.9, 0.3, 1);
    font-family: var(--font-mono);
    font-weight: 500;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
}

.notification.show {
    transform: translateX(0);
}

@media (max-width: 800px) {
    body { padding: 12px; }
    .container { padding: 18px; }
    .main-nav { border-radius: 20px; }
    .nav-btn { font-size: 12px; padding: 8px 14px; }
    .info-grid { grid-template-columns: 1fr; }
    .comparison-grid { grid-template-columns: 1fr; }
    .guide-step { flex-direction: column; gap: 12px; }
    .step-marker { font-size: 24px; }
    .faq-grid { grid-template-columns: 1fr; }
    .status-panel { flex-wrap: wrap; }
}

@media (max-width: 500px) {
    .logo-area { flex-direction: column; align-items: flex-start; }
    .badge-container { width: 100%; }
    .section-header { flex-wrap: wrap; }
    .title-badge { margin-left: 0; }
    .input-group { flex-direction: column; }
    .input-prefix { text-align: center; }
    .verify-btn { width: 100%; }
}