@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --bg: #0f172a;
    --panel: #152238;
    --panel-dark: #10182b;
    --text: #f8fafc;
    --muted: #94a3b8;
    --accent: #a855f7;
    --accent-dark: #7c3aed;
    --present: #f97316;
    --correct: #38bdf8;
    --gray: #3a3a3c;
    --tile-size: clamp(48px, 10vw, 64px);
    font-family: 'Space Grotesk', sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top, #1c2c4b, #0b1220 60%);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
}

.page-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 20px 64px;
}

.hero {
    text-align: center;
    margin-bottom: 32px;
}

.hero h1 {
    margin: 0 0 12px;
    font-size: clamp(2rem, 4vw, 3rem);
}

.hero p {
    margin: 0 auto;
    max-width: 700px;
    color: var(--muted);
}

.layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card {
    background: linear-gradient(145deg, var(--panel), var(--panel-dark));
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card h2 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 1.3rem;
}

label {
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: 6px;
}

.guess-row {
    display: flex;
    gap: 12px;
}

input[type="text"] {
    flex: 1;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 14px;
    background: rgba(15, 27, 45, 0.8);
    color: var(--text);
    font-size: 1.1rem;
    text-transform: uppercase;
}

input[type="text"]:focus {
    outline: 2px solid var(--accent);
}

button {
    border: none;
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

button.accent {
    background: var(--accent);
    color: #f8fafc;
    box-shadow: 0 8px 18px rgba(168, 85, 247, 0.45);
}

button.accent:hover:enabled {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

button.ghost {
    background: transparent;
    color: var(--muted);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hint {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--muted);
}

.legend {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.tile {
    width: var(--tile-size);
    height: var(--tile-size);
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #f8fafc;
    background: var(--gray);
    box-shadow: inset 0 -4px rgba(0, 0, 0, 0.45);
    border: none;
}

.tile.sample {
    font-size: 1rem;
    width: 42px;
    height: 42px;
}

.tile.yellow {
    background: var(--present);
}

.tile.green {
    background: var(--correct);
}

.board-header,
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.board {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}


.board-row {
    display: grid;
    grid-template-columns: repeat(5, minmax(48px, 1fr)) auto;
    gap: 12px;
    align-items: center;
}

.board-row .tile {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    font-size: clamp(1.1rem, 3.5vw, 1.6rem);
}

.board-row button.remove {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(248, 250, 252, 0.1);
    color: var(--text);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: 8px;
    margin-top: 18px;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 4px;
}

.results-grid .result-word {
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    background: rgba(148, 163, 184, 0.12);
    color: var(--text);
    text-align: center;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid transparent;
    box-shadow: none;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}

.results-grid .result-word:hover,
.results-grid .result-word:focus-visible {
    background: rgba(148, 163, 184, 0.25);
    border-color: rgba(168, 85, 247, 0.4);
    transform: translateY(-1px);
    outline: none;
}

.footer {
    margin-top: 48px;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

.footer .attribution {
    margin-top: 8px;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

@media (max-width: 680px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .tile {
        --tile-size: 54px;
    }
}