:root {
    --bg: #000000;
    --surface: #0c0c0c;
    --border: #222222;
    --accent: #c8f04a;
    --accent-dim: #8aaa2e;
    --text: #e8e8e0;
    --muted: #666660;
    --correct: #4af09a;
    --wrong: #f04a4a;
    --warm: #f0c44a;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: "DM Mono", monospace;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* noise overlay */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

#app {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 720px;
    padding: 0 20px 80px;
}

/* HEADER */
header {
    padding: 48px 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}

.logo {
    font-family: "Bebas Neue", sans-serif;
    font-size: 52px;
    letter-spacing: 2px;
    line-height: 1;
    color: var(--accent);
}

.logo span {
    color: var(--muted);
    font-size: 14px;
    display: block;
    font-family: "DM Mono", monospace;
    letter-spacing: 0;
    margin-top: 4px;
}

.header-stats {
    text-align: right;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.5px;
}

.header-stats .big {
    font-family: "Bebas Neue", sans-serif;
    font-size: 36px;
    color: var(--text);
    display: block;
    line-height: 1;
}

/* MODE TABS */
.mode-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
}

.mode-tab {
    flex: 1;
    padding: 10px 0;
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    font-family: "DM Mono", monospace;
    font-size: 11px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.15s;
    text-transform: uppercase;
}

.mode-tab:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.mode-tab.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
    font-weight: 500;
}

/* CARD */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 40px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    min-height: 240px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    animation: fadeUp 0.25s ease;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.card.revealed::after {
    transform: scaleX(1);
}

.card-number {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.dino-name {
    font-family: "Bebas Neue", sans-serif;
    font-size: clamp(36px, 6vw, 64px);
    letter-spacing: 2px;
    line-height: 1.1;
    margin-bottom: 8px;
    word-break: break-word;
}

.pronunciation {
    font-size: 18px;
    color: var(--accent);
    letter-spacing: 0.5px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    opacity: 0;
    transform: translateY(6px);
    transition: all 0.3s ease;
}

.pronunciation.show {
    opacity: 1;
    transform: translateY(0);
}

.pronunciation-label {
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

/* BUTTONS */
.btn-row {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.btn {
    flex: 1;
    padding: 14px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text);
    font-family: "DM Mono", monospace;
    font-size: 12px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.15s;
    text-transform: uppercase;
}

.btn:hover {
    border-color: var(--text);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
    font-weight: 500;
}

.btn-primary:hover {
    background: #d8ff5a;
    border-color: #d8ff5a;
}

.btn-correct {
    border-color: var(--correct);
    color: var(--correct);
}
.btn-correct:hover {
    background: var(--correct);
    color: var(--bg);
}

.btn-wrong {
    border-color: var(--wrong);
    color: var(--wrong);
}
.btn-wrong:hover {
    background: var(--wrong);
    color: var(--bg);
}

/* QUIZ MODE */
.quiz-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.quiz-option {
    padding: 16px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text);
    font-family: "DM Mono", monospace;
    font-size: 12px;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.15s;
    text-align: left;
    line-height: 1.5;
}

.quiz-option:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}
.quiz-option.correct {
    border-color: var(--correct);
    color: var(--correct);
    background: rgba(74, 240, 154, 0.06);
}
.quiz-option.wrong {
    border-color: var(--wrong);
    color: var(--wrong);
    background: rgba(240, 74, 74, 0.06);
}
.quiz-option:disabled {
    cursor: default;
}

/* FILL MODE */
.fill-input-wrap {
    margin: 20px 0 16px;
}

.fill-input {
    width: 100%;
    background: none;
    border: none;
    border-bottom: 2px solid var(--border);
    padding: 10px 0;
    color: var(--accent);
    font-family: "DM Mono", monospace;
    font-size: 20px;
    letter-spacing: 1px;
    outline: none;
    transition: border-color 0.2s;
}

.fill-input:focus {
    border-color: var(--accent);
}
.fill-input.correct-input {
    border-color: var(--correct);
    color: var(--correct);
}
.fill-input.wrong-input {
    border-color: var(--wrong);
    color: var(--wrong);
}

/* PROGRESS */
.progress-bar {
    height: 2px;
    background: var(--border);
    margin-bottom: 32px;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    transition: width 0.4s ease;
}

/* STATS ROW */
.stats-row {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.stat-chip {
    padding: 6px 12px;
    border: 1px solid var(--border);
    font-size: 11px;
    letter-spacing: 0.5px;
    color: var(--muted);
}

.stat-chip span {
    color: var(--text);
}

/* BROWSE */
.browse-search {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 14px 16px;
    color: var(--text);
    font-family: "DM Mono", monospace;
    font-size: 13px;
    outline: none;
    margin-bottom: 16px;
    transition: border-color 0.2s;
}

.browse-search:focus {
    border-color: var(--accent);
}

.browse-grid {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.browse-item {
    display: grid;
    grid-template-columns: 32px 1fr 1fr;
    align-items: center;
    padding: 10px 16px;
    border: 1px solid transparent;
    transition: all 0.1s;
    cursor: default;
}

.browse-item:hover {
    border-color: var(--border);
    background: var(--surface);
}

.browse-dino {
    font-size: 13px;
    color: var(--text);
}
.browse-pron {
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 0.5px;
    text-align: right;
}

.browse-num {
    font-size: 11px;
    color: var(--muted);
}

/* RESULTS */
.results-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 48px 40px;
    text-align: center;
    animation: fadeUp 0.3s ease;
}

.results-score {
    font-family: "Bebas Neue", sans-serif;
    font-size: 96px;
    line-height: 1;
    color: var(--accent);
    margin-bottom: 8px;
}

.results-label {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 1px;
    margin-bottom: 32px;
}

/* RECALL MODE */
.recall-wrap {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.recall-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.recall-counter {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.5px;
}

.recall-counter span {
    color: var(--accent);
}

.recall-input-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
    align-items: flex-end;
}

.recall-big-input {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 14px 16px;
    color: var(--text);
    font-family: "DM Mono", monospace;
    font-size: 15px;
    outline: none;
    transition: border-color 0.15s;
    letter-spacing: 0.5px;
}

.recall-big-input:focus {
    border-color: var(--accent);
}

.recall-submit {
    padding: 14px 20px;
    background: var(--accent);
    border: 1px solid var(--accent);
    color: var(--bg);
    font-family: "DM Mono", monospace;
    font-size: 12px;
    letter-spacing: 1px;
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
    transition: background 0.15s;
}

.recall-submit:hover {
    background: #d8ff5a;
}

.recall-feedback {
    font-size: 12px;
    min-height: 18px;
    margin-bottom: 20px;
    letter-spacing: 0.3px;
}

.recall-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.recall-row {
    display: grid;
    grid-template-columns: 28px 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border: 1px solid transparent;
    transition: border-color 0.1s;
    animation: fadeUp 0.2s ease;
}

.recall-row:hover {
    border-color: var(--border);
}

.recall-row-num {
    font-size: 11px;
    color: var(--muted);
}

.recall-row-name {
    font-family: "Bebas Neue", sans-serif;
    font-size: 20px;
    letter-spacing: 1px;
}

.recall-row-name.hit {
    color: var(--correct);
}
.recall-row-name.miss {
    color: var(--muted);
}

.recall-row-pron {
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.3px;
    text-align: right;
}

.recall-hint-toggle {
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    font-family: "DM Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    cursor: pointer;
    transition: all 0.1s;
    margin-bottom: 16px;
}

.recall-hint-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.recall-closest {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 12px 16px;
    margin-bottom: 16px;
    animation: fadeUp 0.2s ease;
}

.recall-closest-label {
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.recall-close-item {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
}

.recall-close-item:last-child {
    border-bottom: none;
}
.recall-close-item span:first-child {
    color: var(--text);
}
.recall-close-item span:last-child {
    color: var(--muted);
    font-size: 11px;
}

.recall-progress-ring {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    margin-bottom: 20px;
}

.recall-pct {
    font-family: "Bebas Neue", sans-serif;
    font-size: 40px;
    color: var(--accent);
    line-height: 1;
}

.recall-pct-label {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.5px;
}

.recall-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

.recall-stat {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.3px;
}
.recall-stat span {
    color: var(--text);
    display: block;
    font-size: 18px;
    font-family: "Bebas Neue", sans-serif;
}

.recall-submode-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 20px;
}

.recall-sub-tab {
    padding: 7px 14px;
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    font-family: "DM Mono", monospace;
    font-size: 10px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.12s;
    text-transform: uppercase;
}

.recall-sub-tab:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.recall-sub-tab.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
    font-weight: 500;
}

/* number prompt */
.num-prompt-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 36px 40px;
    margin-bottom: 16px;
    animation: fadeUp 0.2s ease;
}

.num-prompt-label {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.num-prompt-number {
    font-family: "Bebas Neue", sans-serif;
    font-size: 88px;
    line-height: 1;
    color: var(--accent);
    margin-bottom: 4px;
}

.num-prompt-meta {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.5px;
}

/* grid */
.recall-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    margin-bottom: 20px;
}

.recall-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Bebas Neue", sans-serif;
    font-size: 14px;
    border: 1px solid var(--border);
    cursor: default;
    transition: background 0.15s;
    position: relative;
}

.recall-cell.found {
    background: rgba(74, 240, 154, 0.12);
    border-color: var(--correct);
    color: var(--correct);
}
.recall-cell.empty {
    color: var(--border);
}
.recall-cell.found:hover::after {
    content: attr(data-name);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 4px 8px;
    font-family: "DM Mono", monospace;
    font-size: 10px;
    color: var(--text);
    white-space: nowrap;
    z-index: 10;
    letter-spacing: 0;
    font-weight: 400;
    pointer-events: none;
}

/* TOOLTIP HINT */
.hint {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

/* SHUFFLE BADGE */
.badge {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(200, 240, 74, 0.1);
    color: var(--accent-dim);
    font-size: 10px;
    letter-spacing: 1px;
    margin-left: 8px;
    vertical-align: middle;
}