:root {
    --bg-black: #000000;
    --card-dark: #0a0e14;
    --card-hover: #121822;
    --dedsec-cyan: #00f0ff;
    --glitch-red: #ff0055;
    --matrix-green: #00ff66;
    --cyber-amber: #ffb800;
    --text-white: #f0f6fc;
    --text-gray: #8b949e;
    --border-cyan: rgba(0, 240, 255, 0.25);
    --border-red: rgba(255, 0, 85, 0.35);
}

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

body {
    background-color: var(--bg-black);
    color: var(--text-white);
    font-family: 'Consolas', 'Courier New', monospace;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

/* Matrix Background Canvas */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    opacity: 0.28;
}

/* Subtle CRT Scanlines */
.cyber-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
                linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    background-size: 100% 3px, 6px 100%;
    pointer-events: none;
    z-index: -1;
}

/* Header */
.cyber-header {
    background: rgba(0, 0, 0, 0.85);
    border-bottom: 1px solid var(--border-cyan);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-box {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-tag {
    font-size: 11px;
    color: var(--dedsec-cyan);
    border: 1px solid var(--border-cyan);
    padding: 2px 6px;
    background: rgba(0, 240, 255, 0.08);
}

.logo-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--text-white);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

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

.nav-cta {
    color: var(--dedsec-cyan) !important;
    border: 1px solid var(--dedsec-cyan);
    padding: 6px 12px;
    background: rgba(0, 240, 255, 0.1);
}

.lang-switch {
    background: #111620;
    color: var(--dedsec-cyan);
    border: 1px solid var(--border-cyan);
    padding: 4px 8px;
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    font-weight: bold;
}

/* Hero Section */
.hero-section {
    padding: 80px 20px 60px;
    text-align: center;
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
}

.terminal-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 102, 0.1);
    border: 1px solid rgba(0, 255, 102, 0.4);
    padding: 4px 12px;
    font-size: 12px;
    color: var(--matrix-green);
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--matrix-green);
    border-radius: 50%;
    animation: blink 1.2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-size: clamp(40px, 8vw, 76px);
    font-weight: 900;
    letter-spacing: 4px;
    color: var(--text-white);
    margin-bottom: 20px;
    position: relative;
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-gray);
    max-width: 720px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* Cyber Buttons */
.cyber-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 26px;
    font-family: inherit;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
    transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.cyber-btn:hover {
    transform: translateY(-2px);
}

.primary-btn {
    background: var(--dedsec-cyan);
    color: var(--bg-black);
    border: none;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

.primary-btn:hover {
    background: #33f3ff;
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
}

.secondary-btn {
    background: rgba(255, 0, 85, 0.15);
    color: var(--glitch-red);
    border: 1px solid var(--glitch-red);
}

.secondary-btn:hover {
    background: rgba(255, 0, 85, 0.25);
    box-shadow: 0 0 20px rgba(255, 0, 85, 0.4);
}

/* Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.stat-card {
    background: var(--card-dark);
    border: 1px solid var(--border-cyan);
    padding: 20px;
    text-align: center;
}

.stat-val {
    font-size: 26px;
    font-weight: bold;
    color: var(--dedsec-cyan);
    margin-bottom: 6px;
}

.stat-lbl {
    font-size: 11px;
    color: var(--text-gray);
    letter-spacing: 1px;
}

/* Sections */
section {
    padding: 80px 20px;
}

.section-container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-tag {
    font-size: 12px;
    color: var(--dedsec-cyan);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.section-title {
    font-size: 32px;
    font-weight: bold;
    letter-spacing: 2px;
    margin-bottom: 14px;
    color: var(--text-white);
}

.section-desc {
    color: var(--text-gray);
    max-width: 680px;
    margin-bottom: 40px;
}

/* 3 Rules Grid */
.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.rule-card {
    background: var(--card-dark);
    border: 1px solid var(--border-cyan);
    padding: 30px;
    position: relative;
    clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.rule-card:hover {
    border-color: var(--dedsec-cyan);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
}

.featured-rule {
    border-color: var(--glitch-red);
    background: linear-gradient(180deg, rgba(255, 0, 85, 0.08) 0%, var(--card-dark) 100%);
}

.rule-num {
    display: inline-block;
    font-size: 11px;
    color: var(--matrix-green);
    background: rgba(0, 255, 102, 0.1);
    border: 1px solid rgba(0, 255, 102, 0.3);
    padding: 2px 8px;
    margin-bottom: 16px;
}

.rule-card h3 {
    font-size: 18px;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.rule-card p {
    color: var(--text-gray);
    font-size: 13px;
    line-height: 1.8;
}

/* Interactive Terminal Demo */
.terminal-box {
    background: #05080c;
    border: 1px solid var(--border-cyan);
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
}

.terminal-top {
    background: #0d121a;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-cyan);
    display: flex;
    align-items: center;
    gap: 8px;
}

.term-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.term-dot.red { background: #ff5f56; }
.term-dot.yellow { background: #ffbd2e; }
.term-dot.green { background: #27c93f; }

.term-title {
    font-size: 12px;
    color: var(--text-gray);
    margin-left: 8px;
}

.terminal-body {
    padding: 24px;
}

.prompt-line {
    font-size: 13px;
    color: var(--dedsec-cyan);
    margin-bottom: 12px;
}

.term-input-field {
    width: 100%;
    background: #000;
    border: 1px solid var(--dedsec-cyan);
    color: #fff;
    padding: 14px;
    font-family: inherit;
    font-size: 15px;
    margin-bottom: 16px;
    outline: none;
}

.term-input-field:focus {
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

.term-output {
    margin-top: 20px;
    padding: 16px;
    background: rgba(0, 255, 102, 0.08);
    border: 1px solid var(--matrix-green);
    font-size: 13px;
}

.term-output.hidden {
    display: none;
}

.out-log {
    color: var(--matrix-green);
    font-weight: bold;
    margin-bottom: 8px;
}

.out-target {
    color: #fff;
    font-size: 15px;
    margin-bottom: 8px;
}

.out-rules {
    color: var(--text-gray);
    font-size: 12px;
}

/* 40 Days Grid Preview */
.tracker-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    gap: 10px;
    max-width: 700px;
    margin: 0 auto;
}

.preview-cell {
    background: var(--card-dark);
    border: 1px solid var(--border-cyan);
    padding: 16px 8px;
    text-align: center;
    font-size: 13px;
    font-weight: bold;
}

.preview-cell.done {
    background: rgba(0, 255, 102, 0.15);
    border-color: var(--matrix-green);
    color: var(--matrix-green);
}

.preview-cell.active {
    background: rgba(0, 240, 255, 0.25);
    border-color: var(--dedsec-cyan);
    color: var(--dedsec-cyan);
    animation: pulseBorder 1.5s infinite;
}

@keyframes pulseBorder {
    0%, 100% { box-shadow: 0 0 5px var(--dedsec-cyan); }
    50% { box-shadow: 0 0 15px var(--dedsec-cyan); }
}

.preview-cell.target {
    border-color: var(--glitch-red);
    color: var(--glitch-red);
}

/* Download Card */
.dl-card {
    background: linear-gradient(180deg, #070a10 0%, #000 100%);
    border: 1px solid var(--dedsec-cyan);
    padding: 60px 30px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}

.dl-badge {
    color: var(--matrix-green);
    font-size: 12px;
    margin-bottom: 14px;
}

.dl-card h2 {
    font-size: 28px;
    margin-bottom: 16px;
}

.dl-card p {
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 14px;
}

.large-btn {
    font-size: 16px;
    padding: 18px 36px;
}

/* Footer */
.cyber-footer {
    border-top: 1px solid var(--border-cyan);
    padding: 30px 20px;
    background: #000;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 12px;
    color: var(--text-gray);
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sub-muted {
    color: #484f58;
}

.footer-right a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-right a:hover {
    color: var(--dedsec-cyan);
}

.sep {
    margin: 0 8px;
    color: #30363d;
}

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