:root {
    --bg-dark: #050505;
    --neon-green: #0fa;
    --neon-green-dim: rgba(0, 255, 170, 0.25);
    --neon-green-glow: rgba(0, 255, 170, 0.08);
    --neon-red: #f03;
    --neon-cyan: #0ff;
    --terminal-bg: rgba(8, 14, 10, 0.92);
    --font-mono: 'Share Tech Mono', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--neon-green);
    font-family: var(--font-mono);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* ── Background effects ─────────────────────────────────────────────── */

.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background:
        linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.22) 50%),
        linear-gradient(90deg, rgba(255, 0, 0, 0.04), rgba(0, 255, 0, 0.015), rgba(0, 0, 255, 0.04));
    background-size: 100% 2px, 3px 100%;
    z-index: 100;
    pointer-events: none;
    opacity: 0.7;
}

/* ── Noise overlay ──────────────────────────────────────────────────── */

.noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 99;
    pointer-events: none;
    opacity: 0.3;
    background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='0.06'/></svg>");
    animation: noise-shift 0.2s steps(2) infinite;
}

@keyframes noise-shift {
    0%   { background-position: 0 0; }
    50%  { background-position: -80px -40px; }
    100% { background-position: 40px -80px; }
}

/* ── Layout ─────────────────────────────────────────────────────────── */

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 20px 60px;
    position: relative;
    z-index: 10;
}

/* ── Header ─────────────────────────────────────────────────────────── */

header {
    text-align: center;
    margin-bottom: 30px;
}

.glitch {
    font-size: 5rem;
    font-weight: bold;
    text-transform: uppercase;
    position: relative;
    text-shadow:
        0.05em 0 0 var(--neon-red),
        -0.025em -0.05em 0 var(--neon-green),
        0.025em 0.05em 0 #00f;
    animation: glitch 500ms infinite;
    letter-spacing: 5px;
}

@keyframes glitch {
    0% {
        text-shadow: 0.05em 0 0 var(--neon-red), -0.05em -0.025em 0 var(--neon-green), -0.025em 0.05em 0 #00f;
    }

    14% {
        text-shadow: 0.05em 0 0 var(--neon-red), -0.05em -0.025em 0 var(--neon-green), -0.025em 0.05em 0 #00f;
    }

    15% {
        text-shadow: -0.05em -0.025em 0 var(--neon-red), 0.025em 0.025em 0 var(--neon-green), -0.05em -0.05em 0 #00f;
    }

    49% {
        text-shadow: -0.05em -0.025em 0 var(--neon-red), 0.025em 0.025em 0 var(--neon-green), -0.05em -0.05em 0 #00f;
    }

    50% {
        text-shadow: 0.025em 0.05em 0 var(--neon-red), 0.05em 0 0 var(--neon-green), 0 -0.05em 0 #00f;
    }

    99% {
        text-shadow: 0.025em 0.05em 0 var(--neon-red), 0.05em 0 0 var(--neon-green), 0 -0.05em 0 #00f;
    }

    100% {
        text-shadow: -0.025em 0 0 var(--neon-red), -0.025em -0.025em 0 var(--neon-green), -0.025em -0.05em 0 #00f;
    }
}

.tagline {
    font-size: 1.1rem;
    color: #ccc;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.status-bar {
    font-size: 0.85rem;
    padding: 8px 18px;
    border: 1px solid var(--neon-green-dim);
    display: inline-block;
    background: var(--neon-green-glow);
    color: #aaa;
}

.status-indicator {
    height: 9px;
    width: 9px;
    background-color: var(--neon-green);
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
    box-shadow: 0 0 8px var(--neon-green);
    animation: blink 2s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

/* ── Feature cards ──────────────────────────────────────────────────── */

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 40px;
    margin-bottom: 5px;
}

.feature-card {
    border: 1px solid var(--neon-green-dim);
    background: var(--neon-green-glow);
    padding: 22px 18px;
    transition: border-color 0.3s, box-shadow 0.3s;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.feature-card:hover {
    border-color: var(--neon-green);
    box-shadow: 0 0 18px var(--neon-green-dim);
}

.feature-icon {
    font-size: 1.6rem;
    color: var(--neon-green);
    margin-bottom: 10px;
    animation: spin-hex 8s linear infinite;
    display: inline-block;
}

@keyframes spin-hex {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.feature-card h3 {
    font-size: 0.95rem;
    color: var(--neon-green);
    margin-bottom: 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.feature-card p {
    font-size: 0.9rem;
    color: #dfdfdf;
    /* Brighter white-gray */
    line-height: 1.6;
    font-weight: 300;
}

/* ── Terminal window ────────────────────────────────────────────────── */

.terminal-window {
    background: var(--terminal-bg);
    border: 0.5px solid var(--neon-green);
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 0 0 30px var(--neon-green-dim), inset 0 0 30px rgba(0, 0, 0, 0.8);
}

.terminal-header {
    background: #0d0d0d;
    padding: 10px 14px;
    border-bottom: 1px solid var(--neon-green-dim);
    display: flex;
    align-items: center;
    gap: 0;
}

.btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

.close {
    background: #ff5f56;
}

.min {
    background: #ffbd2e;
}

.max {
    background: #27c93f;
}

.title {
    margin-left: 12px;
    color: #555;
    font-size: 0.85rem;
}

.terminal-body {
    padding: 20px 24px;
    min-height: 80px;
    overflow-y: auto;
    font-size: 1rem;
}

.terminal-body p {
    margin-bottom: 8px;
    color: #bbb;
}

.terminal-body .user-input {
    color: var(--neon-green);
}

/* ── Actions ────────────────────────────────────────────────────────── */

.action-container {
    padding: 22px;
    border-top: 1px dashed var(--neon-green-dim);
    text-align: center;
}

.cyber-button {
    background: transparent;
    border: 2px solid var(--neon-green);
    color: var(--neon-green);
    padding: 14px 44px;
    font-size: 1.1rem;
    font-family: var(--font-mono);
    cursor: pointer;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    transition: all 0.25s;
    letter-spacing: 2px;
    font-weight: bold;
}

.cyber-button:hover {
    background: var(--neon-green);
    color: var(--bg-dark);
    box-shadow: 0 0 30px var(--neon-green);
}

.hidden {
    display: none !important;
}

.cyber-input {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--neon-green-dim);
    color: var(--neon-green);
    font-family: var(--font-mono);
    padding: 12px 18px;
    width: 100%;
    max-width: 400px;
    margin-bottom: 20px;
    outline: none;
    transition: all 0.3s;
    text-align: center;
    letter-spacing: 1px;
}

.cyber-input:focus {
    border-color: var(--neon-green);
    box-shadow: 0 0 15px var(--neon-green-dim);
    background: rgba(0, 255, 170, 0.05);
}

.cyber-input::placeholder {
    color: #444;
}

.success-msg {
    color: var(--neon-green);
    margin-bottom: 18px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.sub-action {
    font-size: 1rem;
    padding: 12px 28px;
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.sub-action:hover {
    background: var(--neon-cyan);
    color: var(--bg-dark);
    box-shadow: 0 0 24px var(--neon-cyan);
}

/* ── Instructions ───────────────────────────────────────────────────── */

.code-container {
    position: relative;
    margin-top: 10px;
}

code.block {
    display: block;
    background: #000;
    padding: 14px 20px;
    padding-right: 65px;
    color: #eee;
    border: 1px solid var(--neon-green);
    box-shadow: inset 0 0 15px rgba(0, 255, 170, 0.1), 0 0 10px rgba(0, 255, 170, 0.05);
    line-height: 2;
    margin-top: 6px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--neon-green-glow);
    border: 1px solid var(--neon-green-dim);
    color: var(--neon-green);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 4px 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    opacity: 0.6;
}

.copy-btn:hover {
    opacity: 1;
    border-color: var(--neon-green);
    background: var(--neon-green-dim);
}

.copy-btn.copied {
    background: var(--neon-green);
    color: var(--bg-dark);
    border-color: var(--neon-green);
    opacity: 1;
}

.instructions-panel {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--neon-green-dim);
    border-left: 3px solid var(--neon-green);
    padding: 22px;
    text-align: left;
    margin-top: 10px;
    font-size: 0.88rem;
}

.instructions-panel h3 {
    color: var(--neon-green);
    margin-bottom: 20px;
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 22px;
}

.step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-num {
    color: var(--neon-green);
    font-size: 1.4rem;
    line-height: 1;
    opacity: 0.4;
    flex-shrink: 0;
    width: 28px;
}

.step-body p {
    color: #999;
    margin-bottom: 8px;
    line-height: 1.5;
}

.step-body strong {
    color: #ddd;
}

code.inline {
    background: rgba(0, 255, 170, 0.08);
    color: var(--neon-green);
    padding: 1px 6px;
    border: 1px solid var(--neon-green-dim);
    font-family: var(--font-mono);
}

.protocol-note {
    border-top: 1px dashed var(--neon-green-dim);
    padding-top: 16px;
    color: #666;
    font-size: 0.82rem;
    line-height: 1.7;
}

.note-label {
    display: block;
    color: var(--neon-green);
    margin-bottom: 6px;
    font-size: 0.8rem;
    opacity: 0.7;
    letter-spacing: 2px;
}

/* ── Lang toggle ─────────────────────────────────────────────────────────── */

.lang-toggle {
    position: absolute;
    top: 24px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 20;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--neon-green-dim);
    color: #555;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 3px 8px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.2s;
}

.lang-btn:hover {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.lang-btn.active {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.lang-sep {
    color: #333;
    font-size: 0.75rem;
}

/* ── Footer ─────────────────────────────────────────────────────────── */

footer {
    text-align: center;
    margin-top: 20px;
    color: var(--neon-green-dim);
    font-size: 0.85rem;
}

.author-credits {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #444;
}

.author-credits span {
    color: var(--neon-green);
    font-weight: bold;
    letter-spacing: 1px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    color: #444;
    margin-left: 10px;
    vertical-align: middle;
    transition: color 0.2s ease;
    text-decoration: none;
}

.social-icon:hover {
    color: var(--neon-green);
}

.disclaimer {
    color: rgba(121, 121, 121, 0.50);
    text-align: center;
}

/* ── Responsive ─────────────────────────────────────────────────────── */

@media (max-width: 640px) {
    .glitch {
        font-size: 2.2rem;
        letter-spacing: 2px;
    }

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

    .cyber-button {
        padding: 12px 24px;
        font-size: 1rem;
    }

    .lang-toggle {
        position: static;
        justify-content: flex-end;
        margin-bottom: 8px;
    }
}