:root {
    --bg: #0f0f0f;
    --surface: #1a1a1a;
    --border: #2e2e2e;
    --text: #f0f0f0;
    --muted: #666;
    --correct: #4ade80;
    --present: #facc15;
    --absent: #3f3f3f;
    --absent-text: #888;
    --key-bg: #2a2a2a;
    --key-text: #e0e0e0;
    --accent: #4ade80;
}

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

html, body {
    height: 100%;
    height: 100dvh;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Mono', monospace;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    width: 100%;
}

/* HEADER */
header {
    width: 100%;
    max-width: 600px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px 8px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2rem;
    letter-spacing: 4px;
    color: var(--accent);
    text-shadow: 0 0 30px rgba(74,222,128,0.3);
}

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

.header-btns { display: flex; gap: 8px; }

.icon-btn {
    background: var(--key-bg);
    border: 1px solid var(--border);
    color: var(--text);
    width: 34px; height: 34px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s, border-color 0.2s;
}
.icon-btn:hover { background: #333; border-color: #444; }

/* WORD NUMBER */
.word-meta {
    text-align: center;
    padding: 6px 0 2px;
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    flex-shrink: 0;
}

/* GRID */
#grid-container {
    flex: 1;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    overflow: hidden;
    width: 100%;
    max-width: 600px;
}

#grid {
    display: grid;
    gap: 4px;
}

.tile {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Bebas Neue', sans-serif;
    letter-spacing: 1px;
    border: 2px solid var(--border);
    border-radius: 4px;
    background: var(--surface);
    color: var(--text);
    transition: border-color 0.1s;
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    width: 100%;
    font-size: clamp(0.9rem, 4vw, 1.8rem);
}

.tile.filled { border-color: #555; }

.tile.correct {
    background: var(--correct);
    color: #000;
    border-color: var(--correct);
    animation: pop 0.2s ease;
}
.tile.present {
    background: var(--present);
    color: #000;
    border-color: var(--present);
    animation: pop 0.2s ease;
}
.tile.absent {
    background: var(--absent);
    color: var(--absent-text);
    border-color: var(--absent);
    animation: pop 0.2s ease;
}

.tile.shake { animation: shake 0.4s ease; }
.tile.bounce { animation: bounce 0.5s ease; }

@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes shake {
    0%,100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

@keyframes bounce {
    0%,100% { transform: translateY(0); }
    40% { transform: translateY(-12px); }
    70% { transform: translateY(-6px); }
}

@keyframes flipIn {
    0% { transform: rotateX(0); }
    50% { transform: rotateX(-90deg); background: var(--surface); border-color: var(--border); }
    100% { transform: rotateX(0); }
}

/* TOAST */
#toast {
    position: fixed;
    top: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--text);
    color: var(--bg);
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 8px 16px;
    border-radius: 6px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
    z-index: 100;
    text-align: center;
    max-width: 260px;
    white-space: nowrap;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* KEYBOARD */
#keyboard {
    width: 100%;
    max-width: 500px;
    padding: 4px 4px 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-shrink: 0;
}

.key-row {
    display: flex;
    justify-content: center;
    gap: 3px;
    width: 100%;
}

.key {
    height: 46px;
    flex: 1;
    min-width: 0;
    max-width: 42px;
    padding: 0;
    background: var(--key-bg);
    color: var(--key-text);
    border: 1px solid var(--border);
    border-radius: 5px;
    font-family: 'DM Mono', monospace;
    font-size: 0.7rem;
    font-weight: 500;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    text-transform: uppercase;
    letter-spacing: 0;
    transition: background 0.15s, color 0.15s, transform 0.1s, border-color 0.15s;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.key:active { transform: scale(0.94); }
.key.wide { flex: 1.5; max-width: 65px; font-size: 0.6rem; }

.key.correct { background: var(--correct); color: #000; border-color: var(--correct); }
.key.present { background: var(--present); color: #000; border-color: var(--present); }
.key.absent  { background: var(--absent); color: var(--absent-text); border-color: var(--absent); }

/* MODAL BASE */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.75);
    display: flex; align-items: center; justify-content: center;
    z-index: 200;
    opacity: 0; pointer-events: none;
    transition: opacity 0.25s;
    backdrop-filter: blur(4px);
    padding: 16px;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 20px 20px;
    max-width: 380px;
    width: 100%;
    position: relative;
    transform: translateY(10px);
    transition: transform 0.25s;
    max-height: 90vh;
    max-height: 90dvh;
    overflow-y: auto;
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-close {
    position: absolute; top: 12px; right: 12px;
    background: none; border: none; color: var(--muted);
    font-size: 1.2rem; cursor: pointer;
}

.modal h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 3px;
    margin-bottom: 16px;
    color: var(--accent);
}

/* STATS MODAL */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 18px;
}

.stat-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 4px;
    text-align: center;
}

.stat-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.55rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.guess-dist { margin-bottom: 18px; }
.guess-dist h3 {
    font-size: 0.6rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.dist-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.dist-label {
    font-size: 0.7rem;
    width: 14px;
    text-align: right;
    color: var(--muted);
}

.dist-bar-bg {
    flex: 1;
    height: 20px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
}

.dist-bar {
    height: 100%;
    background: var(--absent);
    border-radius: 4px;
    display: flex; align-items: center;
    padding-right: 8px;
    justify-content: flex-end;
    font-size: 0.65rem;
    color: var(--key-text);
    transition: width 0.6s ease;
    min-width: 22px;
}
.dist-bar.highlight { background: var(--correct); color: #000; }

/* HOW TO PLAY */
.how-section p {
    font-size: 0.72rem;
    color: #aaa;
    line-height: 1.7;
    margin-bottom: 10px;
}

.example-tiles {
    display: flex;
    gap: 4px;
    margin: 8px 0;
}

.ex-tile {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1rem;
    border-radius: 4px;
    border: 2px solid var(--border);
}
.ex-tile.correct { background: var(--correct); color: #000; border-color: var(--correct); }
.ex-tile.present { background: var(--present); color: #000; border-color: var(--present); }
.ex-tile.absent  { background: var(--absent); color: var(--absent-text); border-color: var(--absent); }
.ex-tile.blank   { background: var(--surface); color: var(--text); }

/* RESULT SECTION */
.result-section {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}
.result-section.show { display: flex; }

.result-label {
    font-size: 0.6rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
}

.result-word {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    letter-spacing: 4px;
    color: var(--accent);
}

.share-btn {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
    cursor: pointer;
    text-transform: uppercase;
    transition: opacity 0.2s, transform 0.15s;
}
.share-btn:hover { opacity: 0.85; }
.share-btn:active { transform: scale(0.97); }

/* NEXT WORD COUNTDOWN */
.next-word {
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 1px;
}

/* SCROLLABLE MODAL */
.modal-body { max-height: 60vh; overflow-y: auto; }
.modal-body::-webkit-scrollbar { width: 4px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* ---- RESPONSIVE ---- */

/* Small phones (SE, mini, etc) */
@media (max-height: 600px) {
    header { padding: 6px 12px 4px; }
    .logo { font-size: 1.6rem; }
    .icon-btn { width: 30px; height: 30px; font-size: 0.85rem; }
    .word-meta { padding: 4px 0 0; font-size: 0.55rem; }
    #grid-container { padding: 2px 6px; }
    #grid { gap: 3px; }
    #keyboard { padding: 2px 3px 6px; gap: 3px; }
    .key-row { gap: 2px; }
    .key { height: 36px; font-size: 0.6rem; border-radius: 4px; }
    .key.wide { font-size: 0.5rem; }
}

/* Medium phones */
@media (min-height: 601px) and (max-height: 750px) {
    header { padding: 8px 14px 6px; }
    .logo { font-size: 1.8rem; }
    .icon-btn { width: 32px; height: 32px; font-size: 0.9rem; }
    .word-meta { padding: 4px 0 2px; font-size: 0.6rem; }
    #grid-container { padding: 4px 8px; }
    #grid { gap: 3px; }
    #keyboard { padding: 3px 4px 8px; gap: 3px; }
    .key { height: 42px; font-size: 0.65rem; }
}

/* Larger screens */
@media (min-height: 751px) {
    .logo { font-size: 2.2rem; }
    header { padding: 12px 20px 10px; }
    .key { height: 50px; }
    #grid { gap: 5px; }
}