/* ABC Experience - Mobile-first responsive styles */

:root {
    --color-bg: #1a1a2e;
    --color-bg-alt: #16213e;
    --color-card: #0f3460;
    --color-accent: #e94560;
    --color-accent-hover: #d63a55;
    --color-text: #eaeaea;
    --color-text-muted: #a0a0a0;
    --color-border: #2d4a6f;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-letter: Georgia, serif;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-sm);
}

.back-to-church-btn {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    margin-bottom: var(--space-sm);
    background: var(--color-accent);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.back-to-church-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
}

.page-header {
    text-align: center;
    padding: var(--space-lg) var(--space-sm);
    margin-bottom: var(--space-md);
}

.page-header h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.subtitle {
    color: var(--color-text-muted);
    font-size: clamp(1rem, 3vw, 1.25rem);
}

.alphabet-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-xs);
    margin-bottom: var(--space-xl);
}

@media (min-width: 375px) { .alphabet-grid { grid-template-columns: repeat(6, 1fr); } }
@media (min-width: 640px) { .alphabet-grid { grid-template-columns: repeat(7, 1fr); gap: var(--space-sm); } }
@media (min-width: 1024px) { .alphabet-grid { grid-template-columns: repeat(9, 1fr); } }

.letter-tile {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-letter);
    font-size: clamp(1.5rem, 6vw, 2.5rem);
    font-weight: 600;
    color: var(--color-text);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.letter-tile:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-md);
}

.letter-tile:active { transform: translateY(0) scale(0.98); }
.letter-tile:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }

.letter-display { animation: fadeIn var(--transition-normal); }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-md);
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-btn:hover { background: var(--color-card); border-color: var(--color-accent); }
.back-btn svg { width: 20px; height: 20px; }

.letter-card {
    background: var(--color-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.letter-giant {
    display: block;
    font-family: var(--font-letter);
    font-size: clamp(5rem, 25vw, 12rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.word-examples {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.word-tag {
    background: var(--color-bg-alt);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 1rem;
}

.word-tag span { color: var(--color-accent); font-weight: 600; }

.audio-hint {
    margin: var(--space-sm) auto 0;
    color: var(--color-text-muted);
    max-width: 32rem;
    font-size: 0.95rem;
}

.audio-status {
    margin-top: var(--space-xs);
    min-height: 1.25rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.audio-controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 320px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .audio-controls { flex-direction: row; justify-content: center; max-width: none; }
}

.audio-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    -webkit-tap-highlight-color: transparent;
}

.audio-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.audio-btn:active { transform: translateY(0); }
.audio-btn:focus-visible { outline: 3px solid white; outline-offset: -3px; }
.audio-btn svg { width: 24px; height: 24px; flex-shrink: 0; }
.audio-btn.playing { animation: pulse 1s infinite; }

.word-audio-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin: 0.75rem 0;
}

.word-audio-btn {
    font-size: 0.85rem;
    padding: 0.4rem 0.75rem;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 2rem;
    color: var(--color-text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: background 0.15s;
}
.word-audio-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.word-audio-btn:hover { background: var(--color-accent); border-color: var(--color-accent); }
.word-audio-btn:active { transform: scale(0.96); }
.word-audio-btn.playing { animation: pulse 1s infinite; }

@keyframes pulse {
    0%, 100% { background: var(--color-accent); }
    50% { background: var(--color-accent-hover); }
}

.word-image-container {
    display: none;
    justify-content: center;
    margin: var(--space-md) 0;
    animation: fadeIn var(--transition-normal);
}

.word-image {
    max-width: 280px;
    max-height: 280px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    object-fit: contain;
}

.word-tag.active-word {
    background: var(--color-accent);
    color: white;
    transform: scale(1.05);
}

.word-tag {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.word-tag:hover {
    background: var(--color-border);
}

.page-footer {
    text-align: center;
    padding: var(--space-lg) var(--space-sm);
    margin-top: var(--space-xl);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--color-border);
}

.hidden { display: none !important; }

/* ===== Hub Page ===== */

.hub-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

@media (min-width: 640px) { .hub-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .hub-grid { grid-template-columns: repeat(2, 1fr); max-width: 700px; margin-left: auto; margin-right: auto; } }

.hub-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.hub-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.hub-card:active { transform: translateY(0) scale(0.99); }

.hub-card-icon {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
}

.hub-card h2 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.hub-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.4;
}

.hub-card--abc:hover { border-color: #4ec9f5; }
.hub-card--name:hover { border-color: #f5a623; }
.hub-card--phonics:hover { border-color: #7ed321; }
.hub-card--words:hover { border-color: #e94560; }

.hub-card--words-text:hover { border-color: #9b59b6; }
.hub-card--ipa:hover { border-color: #1abc9c; }
.hub-card--spelling:hover { border-color: #e67e22; }

/* ===== Game Page ===== */

.game-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.mode-toggle {
    display: inline-flex;
    background: var(--color-bg-alt);
    border: 2px solid var(--color-border);
    border-radius: 2rem;
    padding: 3px;
}

.mode-btn {
    padding: 0.4rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mode-btn.active {
    background: var(--color-accent);
    color: white;
}

.mode-btn:hover:not(.active) {
    color: var(--color-text);
}

.replay-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: var(--color-card);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.replay-btn:hover {
    border-color: var(--color-accent);
    background: var(--color-accent);
}

.replay-btn svg { width: 24px; height: 24px; }

.game-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
}

.stat-item {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.game-area {
    text-align: center;
}

.game-prompt {
    margin-bottom: var(--space-lg);
}

.big-play-btn {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid var(--color-border);
    background: var(--color-card);
    color: var(--color-accent);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.big-play-btn:hover {
    border-color: var(--color-accent);
    transform: scale(1.08);
    box-shadow: var(--shadow-lg);
}

.big-play-btn:active { transform: scale(0.95); }
.big-play-btn.playing { animation: pulse 1s infinite; }
.big-play-btn svg { width: 48px; height: 48px; }

.prompt-text {
    margin-top: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.choices-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    max-width: 500px;
    margin: 0 auto var(--space-md);
}

@media (min-width: 640px) {
    .choices-grid { grid-template-columns: repeat(4, 1fr); }
}

.choice-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: var(--space-md) var(--space-sm);
    background: var(--color-card);
    border: 3px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-letter);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 80px;
    -webkit-tap-highlight-color: transparent;
}

.choice-btn:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.choice-btn:active { transform: translateY(0) scale(0.97); }

.choice-btn.correct {
    border-color: #4caf50;
    background: rgba(76, 175, 80, 0.2);
    animation: correctFlash 0.5s;
}

.choice-btn.wrong {
    border-color: #f44336;
    background: rgba(244, 67, 54, 0.2);
    animation: wrongShake 0.4s;
}

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

@keyframes wrongShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.choice-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.choice-btn span {
    font-size: 1rem;
    font-weight: 600;
}

.game-feedback {
    margin: var(--space-md) auto;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    font-weight: 600;
    max-width: 400px;
    animation: fadeIn var(--transition-normal);
}

.feedback-correct {
    background: rgba(76, 175, 80, 0.15);
    border: 2px solid #4caf50;
    color: #81c784;
}

.feedback-wrong {
    background: rgba(244, 67, 54, 0.15);
    border: 2px solid #f44336;
    color: #ef9a9a;
}

.game-next {
    text-align: center;
    margin-top: var(--space-md);
}

.next-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.next-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.next-btn:active { transform: translateY(0); }

.game-over {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    animation: fadeIn var(--transition-normal);
}

.game-over h2 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.final-score, .final-streak {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.final-score span, .final-streak span {
    color: var(--color-accent);
    font-weight: 700;
}

.game-over-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
    margin-top: var(--space-lg);
}

@media (min-width: 480px) {
    .game-over-buttons { flex-direction: row; justify-content: center; }
}

.play-again-btn {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.play-again-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
}

/* IPA choices */
.choice-ipa {
    font-family: Georgia, 'Charis SIL', 'Doulos SIL', serif;
    font-size: 2.25rem !important;
}

/* ===== Hangman / Spelling Game ===== */

.hangman-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.hangman-image-area {
    margin-bottom: var(--space-md);
}

.hangman-word-img {
    display: block;
    margin: 0 auto var(--space-sm);
    max-width: 200px;
    max-height: 200px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    object-fit: contain;
}

.hangman-slots {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin: var(--space-md) 0;
}

.hangman-slot {
    width: 48px;
    height: 56px;
    border-bottom: 4px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-letter);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.hangman-slot.filled {
    border-bottom-color: var(--color-accent);
    animation: slotPop 0.3s;
}

.hangman-slot.revealed {
    border-bottom-color: #f44336;
    color: #ef9a9a;
}

@keyframes slotPop {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.hangman-keyboard {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.4rem;
    max-width: 500px;
    margin: 0 auto var(--space-md);
}

@media (min-width: 480px) {
    .hangman-keyboard { grid-template-columns: repeat(9, 1fr); }
}

@media (min-width: 640px) {
    .hangman-keyboard { grid-template-columns: repeat(13, 1fr); }
}

.hangman-key {
    aspect-ratio: 1;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.hangman-key:hover:not(:disabled) {
    border-color: var(--color-accent);
    background: var(--color-accent);
    transform: translateY(-1px);
}

.hangman-key:active:not(:disabled) { transform: scale(0.95); }

.hangman-key.correct {
    background: rgba(76, 175, 80, 0.3);
    border-color: #4caf50;
    color: #81c784;
}

.hangman-key.wrong {
    background: rgba(244, 67, 54, 0.2);
    border-color: #f44336;
    color: #ef9a9a;
    text-decoration: line-through;
}

.hangman-key:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.hangman-lives {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.hangman-lives .heart-lost {
    opacity: 0.2;
}

.hangman-feedback {
    margin: var(--space-sm) auto;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    animation: fadeIn var(--transition-normal);
}

.hangman-feedback.win {
    background: rgba(76, 175, 80, 0.15);
    border: 2px solid #4caf50;
    color: #81c784;
}

.hangman-feedback.lose {
    background: rgba(244, 67, 54, 0.15);
    border: 2px solid #f44336;
    color: #ef9a9a;
}