:root {
    --bg: #000;
    --green: #33ff66;
    --green-dim: #1aa844;
    --green-glow: rgba(51, 255, 102, 0.55);
    --green-soft: rgba(51, 255, 102, 0.12);
}

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

html, body {
    height: 100%;
    width: 100%;
    background: var(--bg);
    color: var(--green);
    font-family: 'PT Mono', 'Courier New', 'Courier', monospace;
    overflow: hidden;
    text-rendering: geometricPrecision;
}

.crt {
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, #021006 0%, #000 75%);
    overflow: hidden;
}

.life-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.22;
    pointer-events: none;
    mix-blend-mode: screen;
}

.pong {
    position: fixed;
    left: clamp(14px, 2.4vw, 28px);
    bottom: clamp(14px, 2.4vw, 28px);
    z-index: 9;
    width: 248px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid var(--green-dim);
    box-shadow: 0 0 10px rgba(51, 255, 102, 0.18), inset 0 0 8px rgba(51, 255, 102, 0.08);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    backdrop-filter: blur(2px);
}

.pong.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.pong__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    padding: 4px 8px;
    color: var(--green-dim);
    border-bottom: 1px solid rgba(51, 255, 102, 0.2);
    letter-spacing: 1px;
}

.pong__title {
    color: var(--green);
    text-shadow: 0 0 4px var(--green-glow);
}

.pong__score {
    font-variant-numeric: tabular-nums;
}

.pong__canvas {
    display: block;
    width: 240px;
    height: 120px;
    margin: 4px auto;
    image-rendering: pixelated;
}

@media (max-width: 520px) {
    .pong {
        display: none;
    }
    .life-canvas {
        opacity: 0.15;
    }
}

.scanlines {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0px,
        rgba(0, 0, 0, 0) 2px,
        rgba(0, 0, 0, 0.28) 3px,
        rgba(0, 0, 0, 0.28) 4px
    );
    pointer-events: none;
    z-index: 5;
    mix-blend-mode: multiply;
}

.flicker {
    position: absolute;
    inset: 0;
    background: rgba(51, 255, 102, 0.02);
    pointer-events: none;
    z-index: 6;
    animation: flicker 4s infinite;
}

@keyframes flicker {
    0%, 100% { opacity: 0.2; }
    5% { opacity: 0.4; }
    10% { opacity: 0.15; }
    15% { opacity: 0.5; }
    20% { opacity: 0.2; }
    50% { opacity: 0.3; }
    80% { opacity: 0.2; }
}

.vignette {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.85) 100%);
    pointer-events: none;
    z-index: 7;
}

.screen {
    position: relative;
    z-index: 2;
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 4vw, 60px);
}

.terminal {
    font-family: inherit;
    font-size: clamp(12px, 1.5vw, 18px);
    line-height: 1.3;
    color: var(--green);
    text-shadow:
        0 0 1px var(--green-glow),
        0 0 6px var(--green-glow),
        0 0 14px rgba(51, 255, 102, 0.2);
    white-space: pre;
    letter-spacing: 0;
    max-width: 100%;
    font-variant-ligatures: none;
}

.terminal .dim {
    color: var(--green-dim);
    text-shadow: 0 0 2px rgba(26, 168, 68, 0.5);
}

.terminal .bright {
    color: #b6ffce;
    text-shadow:
        0 0 4px #fff,
        0 0 14px var(--green-glow);
}

.terminal .hero {
    color: #d6ffe2;
    text-shadow:
        0 0 4px #fff,
        0 0 16px var(--green-glow),
        0 0 28px var(--green-glow);
}

.terminal .boxed {
    display: inline-block;
    font-size: 1.6em;
    line-height: 1.1;
}

@media (max-width: 520px) {
    .terminal .boxed {
        font-size: 1.2em;
    }
}

.cursor {
    display: inline-block;
    width: 0.6em;
    height: 1em;
    background: var(--green);
    box-shadow: 0 0 8px var(--green-glow), 0 0 18px var(--green-glow);
    vertical-align: text-bottom;
    margin-left: 2px;
    animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
    to { visibility: hidden; }
}

.tg {
    position: fixed;
    bottom: clamp(14px, 2.4vw, 28px);
    right: clamp(14px, 2.4vw, 28px);
    z-index: 10;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    color: var(--green);
    background: var(--green-soft);
    border: 1px solid var(--green-dim);
    font-family: inherit;
    font-size: clamp(15px, 1.6vw, 20px);
    text-decoration: none;
    letter-spacing: 1px;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.6s ease, transform 0.6s ease, background 0.2s ease, box-shadow 0.2s ease;
    text-shadow: 0 0 4px var(--green-glow);
    backdrop-filter: blur(2px);
}

.tg.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.tg:hover {
    background: rgba(51, 255, 102, 0.22);
    box-shadow: 0 0 12px var(--green-glow), inset 0 0 8px rgba(51, 255, 102, 0.25);
}

.tg__icon {
    width: 1.2em;
    height: 1.2em;
    fill: currentColor;
    filter: drop-shadow(0 0 4px var(--green-glow));
}

.tg__handle {
    white-space: nowrap;
}

.skip {
    position: fixed;
    top: clamp(12px, 2vw, 24px);
    right: clamp(12px, 2vw, 24px);
    z-index: 10;
    background: transparent;
    border: 1px solid var(--green-dim);
    color: var(--green-dim);
    font-family: inherit;
    font-size: clamp(12px, 1.2vw, 16px);
    padding: 4px 10px;
    cursor: pointer;
    letter-spacing: 1px;
    opacity: 0.5;
    transition: opacity 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.skip:hover {
    opacity: 1;
    color: var(--green);
    border-color: var(--green);
}

.skip.is-hidden {
    display: none;
}

@media (max-width: 520px) {
    .terminal {
        font-size: 10px;
    }
    .tg__handle {
        display: none;
    }
    .tg {
        padding: 10px 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .flicker, .cursor {
        animation: none;
    }
}