* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: 'Press Start 2P', VT323, ui-monospace, monospace, system-ui;
    color: #f7f1de;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
    background: radial-gradient(circle at top, #5c0cf6 0%, #1a0845 35%, #12041f 100%);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 50% 12%, rgba(255, 255, 255, 0.12), transparent 20%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 40%);
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: repeating-linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.05) 0 2px,
        rgba(0, 0, 0, 0.04) 2px 4px
    );
    mix-blend-mode: screen;
    opacity: 0.55;
}

.page-shell {
    width: min(100%, 460px);
    position: relative;
    z-index: 1;
    padding: 24px;
    border: 3px solid rgba(255, 109, 199, 0.7);
    border-radius: 32px;
    background: rgba(11, 4, 34, 0.85);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 24px 80px rgba(0, 0, 0, 0.5);
}

.page-shell::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 32px;
    pointer-events: none;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 30%);
}

.hero {
    margin-bottom: 24px;
    padding: 16px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(244, 120, 255, 0.18), rgba(75, 133, 255, 0.18));
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero h1 {
    margin: 0;
    font-size: clamp(2rem, 6vw, 3rem);
    letter-spacing: 0.12em;
    color: #ffe381;
    text-shadow: 0 0 0.4rem rgba(255, 82, 188, 0.85);
}

.hero p {
    margin: 18px auto 0;
    max-width: 34rem;
    color: #c4d6ff;
    line-height: 1.7;
    font-size: 0.92rem;
}

#container {
    position: relative;
    background: linear-gradient(180deg, rgba(20, 9, 45, 0.95), rgba(10, 5, 24, 0.95));
    border: 2px solid rgba(132, 73, 255, 0.65);
    border-radius: 30px;
    padding: 28px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05), 0 16px 40px rgba(101, 60, 255, 0.18);
    overflow: hidden;
}

#container::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 20%, rgba(249, 145, 255, 0.12), transparent 18%),
        radial-gradient(circle at 80% 30%, rgba(74, 234, 255, 0.12), transparent 18%);
    pointer-events: none;
}

.panel {
    display: grid;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.status-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.status-pill {
    padding: 12px 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(255, 140, 233, 0.2), rgba(44, 161, 255, 0.18));
    color: #f9f6ff;
    font-size: 0.88rem;
    min-width: 140px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.primary-btn {
    background: linear-gradient(180deg, #ff6de7 0%, #5f9dff 100%);
    border: 2px solid #a36cff;
    border-radius: 12px;
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 14px 22px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
    box-shadow: 0 10px 0 #2d1b5b;
    text-transform: uppercase;
    letter-spacing: 0.18em;
}

.primary-btn:hover,
.primary-btn:focus-visible {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 16px 26px rgba(255, 127, 230, 0.35);
    filter: saturate(1.2);
}

.primary-btn:disabled {
    background: rgba(120, 90, 225, 0.4);
    cursor: not-allowed;
    box-shadow: none;
}

#box {
    width: min(270px, 85vw);
    height: min(270px, 85vw);
    max-width: 300px;
    max-height: 300px;
    margin: 0 auto;
    border-radius: 22px;
    border: 3px solid rgba(149, 44, 255, 0.8);
    background: radial-gradient(circle at 50% 25%, rgba(95, 229, 255, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(18, 6, 64, 0.98), rgba(4, 2, 21, 0.98));
    display: grid;
    place-items: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    will-change: transform, box-shadow, background;
}

#box::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at center, rgba(255, 255, 255, 0.08), transparent 40%),
        repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0 4px, transparent 4px 8px);
    opacity: 0.12;
}

#box.waiting {
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), inset 0 0 0 1px rgba(186, 113, 255, 0.3);
}

#box.go {
    background: radial-gradient(circle at 50% 40%, #7cff8a 0%, #219f51 45%, #081a09 100%);
    box-shadow: 0 0 60px rgba(110, 255, 177, 0.45), inset 0 0 50px rgba(119, 255, 138, 0.25);
    transform: scale(1.04);
}

#box.go::after {
    content: "GO";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #0b1a0c;
    font-size: clamp(2rem, 5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: 0.22em;
    text-shadow: 0 0 0.25rem rgba(255, 255, 255, 0.55);
}

#box.early {
    background: radial-gradient(circle at 50% 40%, #ff6075 0%, #9c0818 48%, #2f0b10 100%);
    box-shadow: 0 0 60px rgba(255, 95, 113, 0.45), inset 0 0 50px rgba(255, 120, 130, 0.24);
    transform: scale(1.04);
}

#box.early::after {
    content: "TOO SOON";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #ffeee8;
    font-size: clamp(1.1rem, 3vw, 1.8rem);
    font-weight: 800;
    letter-spacing: 0.18em;
    text-shadow: 0 0 0.24rem rgba(0, 0, 0, 0.45);
}

#result {
    margin: 0;
    color: #cfdcff;
    font-size: 1.05rem;
    min-height: 1.5em;
}

@media (max-width: 420px) {
    .page-shell {
        padding: 18px;
        border-radius: 24px;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .status-pill {
        min-width: 120px;
    }

    .primary-btn {
        width: 100%;
    }
}