/* ==========================================================================
   Spelling Stars — Game Styles
   Mobile-first, child-friendly, fun
   ========================================================================== */

:root {
    --ss-bg: #121212;
    --ss-card: #1c1c1c;
    --ss-surface: #2a2a2a;
    --ss-border: #3a3a3a;
    --ss-green: #39B54A;
    --ss-gold: #D4A017;
    --ss-red: #C62828;
    --ss-red-light: #e74c3c;
    --ss-blue: #3498db;
    --ss-white: #ffffff;
    --ss-grey: #adb5bd;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--ss-bg);
    color: var(--ss-white);
    min-height: 100vh;
}

/* Prevent accidental text selection on interactive game UI */
.ss-nav,
.ss-nav *,
.ss-screen,
.ss-screen *,
.ss-keyboard,
.ss-keyboard *,
.mode-card,
.mode-card * {
    -webkit-user-select: none;
    user-select: none;
}

/* Allow selection on text inputs */
.ss-input,
input[type="text"],
input[type="password"],
textarea {
    -webkit-user-select: auto;
    user-select: auto;
}

#spelling-app {
    max-width: 600px;
    margin: 0 auto;
    padding: 1rem;
    min-height: 100vh;
}

/* ---------- Screen Container ---------- */
.ss-screen {
    animation: fadeIn 0.3s ease-out;
}

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

/* ---------- Header ---------- */
.ss-header {
    text-align: center;
    padding: 1.5rem 0;
}

.ss-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
}

.ss-header .star-icon {
    color: var(--ss-gold);
    font-size: 2rem;
}

.ss-back-link {
    color: var(--ss-grey);
    text-decoration: none;
    font-size: 0.875rem;
}

.ss-back-link:hover {
    color: var(--ss-white);
}

/* ---------- Cards ---------- */
.ss-card {
    background-color: var(--ss-card);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

/* ---------- Inputs ---------- */
.ss-input {
    background-color: var(--ss-surface);
    border: 2px solid var(--ss-border);
    color: var(--ss-white);
    border-radius: 0.75rem;
    padding: 0.875rem 1rem;
    font-size: 1.125rem;
    width: 100%;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
}

.ss-input:focus {
    outline: none;
    border-color: var(--ss-red);
    box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.25);
}

.ss-input::placeholder {
    color: #666;
}

/* ---------- Buttons ---------- */
.ss-btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.2s;
    text-align: center;
    text-decoration: none;
    min-height: 48px;
    min-width: 48px;
}

.ss-btn:active {
    transform: scale(0.97);
}

.ss-btn-primary {
    background-color: var(--ss-red);
    color: var(--ss-white);
}

.ss-btn-primary:hover {
    background-color: #B71C1C;
    box-shadow: 0 4px 15px rgba(198, 40, 40, 0.4);
}

.ss-btn-secondary {
    background-color: var(--ss-border);
    color: var(--ss-white);
}

.ss-btn-gold {
    background-color: var(--ss-gold);
    color: #333;
}

.ss-btn-danger {
    background-color: var(--ss-red-light);
    color: var(--ss-white);
}

.ss-btn-block {
    display: block;
    width: 100%;
}

/* ---------- Mode Select Cards ---------- */
.mode-card {
    background-color: var(--ss-card);
    border: 2px solid var(--ss-border);
    border-radius: 1rem;
    padding: 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, transform 0.1s;
    min-height: 48px;
}

.mode-card:hover {
    border-color: var(--ss-red);
    transform: scale(1.02);
}

.mode-card i {
    font-size: 2rem;
    color: var(--ss-red);
    margin-bottom: 0.5rem;
}

.mode-card h3 {
    font-size: 1rem;
    margin: 0;
}

.mode-card p {
    font-size: 0.8rem;
    color: var(--ss-grey);
    margin: 0.25rem 0 0;
}

/* ---------- Game Area ---------- */
.word-display {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.15em;
    padding: 2rem 0;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.word-hidden {
    color: transparent;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
}

/* ---------- Fill in the Blank ---------- */
.blank-letter {
    display: inline-block;
    width: 2rem;
    height: 3rem;
    line-height: 3rem;
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0.15rem;
    border-bottom: 3px solid var(--ss-grey);
}

.blank-letter.missing {
    border-bottom-color: var(--ss-gold);
    color: var(--ss-gold);
}

.blank-letter.filled {
    color: var(--ss-gold);
}

/* ---------- Multiple Choice ---------- */
.mc-option {
    display: block;
    width: 100%;
    padding: 1rem;
    margin-bottom: 0.75rem;
    background-color: var(--ss-surface);
    border: 2px solid var(--ss-border);
    border-radius: 0.75rem;
    color: var(--ss-white);
    font-size: 1.25rem;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    text-align: center;
    min-height: 48px;
}

.mc-option:hover {
    border-color: var(--ss-gold);
}

.mc-option.correct {
    background-color: rgba(57, 181, 74, 0.3);
    border-color: var(--ss-green);
}

.mc-option.wrong {
    background-color: rgba(198, 40, 40, 0.3);
    border-color: var(--ss-red-light);
}

/* ---------- Unscramble Tiles ---------- */
.tile-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 0;
}

.letter-tile {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--ss-blue);
    color: var(--ss-white);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: transform 0.15s, opacity 0.15s;
    user-select: none;
    min-height: 48px;
    min-width: 48px;
}

.letter-tile:hover {
    transform: scale(1.1);
}

.letter-tile.used {
    opacity: 0.3;
    pointer-events: none;
}

.answer-slots {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    padding: 1rem 0;
    min-height: 60px;
}

.answer-slot {
    width: 2.5rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 3px solid var(--ss-border);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ss-gold);
}

.answer-slot.filled {
    border-bottom-color: var(--ss-gold);
}

/* ---------- Progress Bar ---------- */
.ss-progress {
    background-color: var(--ss-surface);
    border-radius: 1rem;
    height: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.ss-progress-bar {
    background-color: var(--ss-red);
    height: 100%;
    border-radius: 1rem;
    transition: width 0.3s ease;
}

.ss-progress-text {
    font-size: 0.8rem;
    color: var(--ss-grey);
    text-align: center;
    margin-bottom: 0.5rem;
}

/* ---------- Feedback Overlay ---------- */
.feedback-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.2s ease-out;
}

.feedback-card {
    background-color: var(--ss-card);
    border-radius: 1.5rem;
    padding: 2rem;
    text-align: center;
    max-width: 350px;
    width: 90%;
}

.feedback-card.correct {
    border: 3px solid var(--ss-green);
}

.feedback-card.wrong {
    border: 3px solid var(--ss-red-light);
}

.feedback-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
}

.feedback-card.correct .feedback-icon {
    color: var(--ss-green);
}

.feedback-card.wrong .feedback-icon {
    color: var(--ss-red-light);
}

.feedback-message {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feedback-detail {
    color: var(--ss-grey);
    font-size: 0.9rem;
}

.correct-word {
    color: var(--ss-green);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

/* ---------- Star Animation ---------- */
.star-burst {
    position: fixed;
    pointer-events: none;
    z-index: 2000;
}

.star-particle {
    position: absolute;
    color: var(--ss-gold);
    font-size: 1.5rem;
    animation: starBurst 0.8s ease-out forwards;
}

@keyframes starBurst {
    0% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(var(--tx), var(--ty)) scale(0);
    }
}

/* ---------- Confetti ---------- */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 3000;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    top: -10px;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    animation: confettiFall var(--duration) linear forwards;
}

@keyframes confettiFall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ---------- Results Screen ---------- */
.results-score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--ss-gold);
}

.results-label {
    font-size: 1.25rem;
    color: var(--ss-grey);
}

.badge-earned {
    display: inline-block;
    background-color: var(--ss-surface);
    border: 2px solid var(--ss-gold);
    border-radius: 1rem;
    padding: 0.75rem 1rem;
    margin: 0.25rem;
    text-align: center;
}

.badge-earned i {
    color: var(--ss-gold);
    font-size: 1.5rem;
}

.badge-earned .badge-name {
    display: block;
    font-size: 0.75rem;
    color: var(--ss-grey);
    margin-top: 0.25rem;
}

/* ---------- Leaderboard ---------- */
.lb-row {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    background-color: var(--ss-surface);
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
}

.lb-rank {
    width: 2.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    text-align: center;
}

.lb-rank.gold { color: var(--ss-gold); }
.lb-rank.silver { color: #c0c0c0; }
.lb-rank.bronze { color: #cd7f32; }

.lb-name {
    flex-grow: 1;
    padding: 0 0.75rem;
}

.lb-score {
    font-weight: 700;
    color: var(--ss-gold);
}

/* ---------- Error Message ---------- */
.ss-error {
    background-color: rgba(198, 40, 40, 0.2);
    border: 1px solid var(--ss-red-light);
    border-radius: 0.5rem;
    padding: 0.75rem;
    color: var(--ss-red-light);
    text-align: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* ---------- Wizard Join Screen ---------- */
.wizard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 0.5rem 0;
}

.wizard-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background-color: var(--ss-card);
    border: 2px solid var(--ss-border);
    border-radius: 1rem;
    padding: 1.5rem 1rem;
    color: var(--ss-white);
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.2s, transform 0.1s;
    min-height: 120px;
}

.wizard-btn i {
    font-size: 2.5rem;
    color: var(--ss-red);
}

.wizard-btn:hover {
    border-color: var(--ss-red);
    transform: scale(1.03);
}

.wizard-btn:active {
    transform: scale(0.97);
}

.wizard-btn-wide {
    grid-column: 1 / -1;
}

.wizard-back {
    color: var(--ss-grey);
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0.25rem 0;
    margin-bottom: 0.5rem;
}

.wizard-back:hover {
    color: var(--ss-white);
}

/* ---------- Join Step 2 Cards ---------- */
.join-path-card {
    text-align: center;
}

.join-path-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.join-path-icon {
    font-size: 2rem;
    color: var(--ss-red);
    margin-bottom: 0.5rem;
}

/* ---------- Grade Picker ---------- */
.grade-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.grade-btn {
    background-color: var(--ss-surface);
    border: 2px solid var(--ss-border);
    color: var(--ss-white);
    border-radius: 0.75rem;
    padding: 0.625rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    min-height: 44px;
    min-width: 44px;
    flex: 1 1 calc(33.333% - 0.5rem);
    max-width: calc(33.333% - 0.5rem);
}

.grade-btn:hover {
    border-color: var(--ss-red);
}

.grade-btn.active {
    background-color: var(--ss-red);
    border-color: var(--ss-red);
    color: var(--ss-white);
}

/* ---------- Week Selector ---------- */
.week-selector-wrap {
    text-align: center;
    margin-bottom: 1rem;
}

.week-selector-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--ss-grey);
    font-size: 0.875rem;
    cursor: pointer;
}

.week-selector-label i {
    color: var(--ss-gold);
}

.week-selector {
    background-color: var(--ss-surface);
    border: 2px solid var(--ss-border);
    color: var(--ss-white);
    border-radius: 0.5rem;
    padding: 0.375rem 0.625rem;
    font-size: 0.875rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    cursor: pointer;
    appearance: auto;
    -webkit-appearance: auto;
}

.week-selector:focus {
    outline: none;
    border-color: var(--ss-red);
    box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.25);
}

/* ---------- Countdown (Unscramble word reveal) ---------- */
.ss-countdown {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ss-grey);
    margin-top: 0.5rem;
}

/* ---------- On-Screen Keyboard ---------- */
.ss-keyboard {
    margin-top: 1rem;
    user-select: none;
}

.kb-row {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 4px;
}

.kb-key {
    background-color: var(--ss-border);
    color: var(--ss-white);
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    min-height: 44px;
    min-width: 30px;
    flex: 1;
    max-width: 44px;
    cursor: pointer;
    transition: background-color 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
}

.kb-key:active {
    background-color: var(--ss-red);
}

.kb-key-action {
    flex: 4;
    max-width: 160px;
    font-size: 0.75rem;
    gap: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
}

.kb-enter {
    background-color: var(--ss-green);
}

.kb-enter:active {
    background-color: #2d8f40;
}

.kb-key-back {
    flex: 1.5;
    max-width: 56px;
    font-size: 1.125rem;
}

/* ---------- Nav Bar ---------- */
.ss-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--ss-border);
}

.ss-nav-left {
    color: var(--ss-grey);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
}

.ss-nav-left:hover {
    color: var(--ss-white);
}

.ss-nav-center {
    color: var(--ss-gold);
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.ss-nav-right {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.ss-nav-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    padding: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: var(--ss-grey);
    text-decoration: none;
    min-height: 44px;
    min-width: 44px;
}

.ss-nav-icon:hover {
    color: var(--ss-white);
}

.ss-nav-logout:hover {
    color: var(--ss-red-light);
}

/* ---------- Bonus Round ---------- */
.ss-progress-bar.bonus {
    background-color: var(--ss-gold);
}

.bonus-badge {
    display: inline-block;
    background-color: var(--ss-gold);
    color: #333;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 1rem;
    margin-left: 0.5rem;
    vertical-align: middle;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bonus-badge i {
    font-size: 0.6rem;
    margin-right: 0.15rem;
}

.bonus-transition {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.85);
    animation: fadeIn 0.3s ease-out;
}

.bonus-transition-inner {
    text-align: center;
    animation: bonusPulse 0.6s ease-out;
}

.bonus-transition-stars {
    color: var(--ss-gold);
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.bonus-transition-stars i {
    margin: 0 0.25rem;
}

.bonus-transition h2 {
    color: var(--ss-gold);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.bonus-transition p {
    color: var(--ss-grey);
    font-size: 1rem;
}

@keyframes bonusPulse {
    0% { transform: scale(0.5); opacity: 0; }
    60% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

/* ---------- Bonus Results ---------- */
.bonus-results {
    border-top: 1px solid var(--ss-border);
    padding-top: 0.75rem;
}

.bonus-results-label {
    color: var(--ss-gold);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.bonus-results-score {
    color: var(--ss-gold);
    font-size: 1.5rem;
    font-weight: 700;
}

.bonus-results-detail {
    color: var(--ss-grey);
    font-size: 0.85rem;
}

/* ---------- Word Toolbar (Peek + Audio) ---------- */
.word-toolbar {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.word-toolbar-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1.5px solid var(--ss-border);
    background-color: var(--ss-surface);
    color: var(--ss-grey);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, border-color 0.15s;
}

.word-toolbar-btn.peek-btn {
    width: auto;
    border-radius: 1.25rem;
    padding: 0 0.75rem;
    gap: 0.35rem;
}

.peek-cost {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--ss-red);
}

.peek-deduct-float {
    position: absolute;
    top: -0.25rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1rem;
    font-weight: 700;
    color: var(--ss-red);
    pointer-events: none;
    animation: peekDeductFloat 0.8s ease-out forwards;
}

@keyframes peekDeductFloat {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(-2rem); }
}

.word-toolbar-btn:hover {
    color: var(--ss-white);
    border-color: var(--ss-white);
}

.word-toolbar-btn.speaking {
    color: var(--ss-gold);
    border-color: var(--ss-gold);
    animation: audioPulse 0.6s ease-in-out infinite alternate;
}

@keyframes audioPulse {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

/* ---------- Flip Card ---------- */
.flip-card {
    perspective: 800px;
    min-height: 120px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    min-height: 120px;
    transition: transform 0.5s ease;
    transform-style: preserve-3d;
}

.flip-card-inner.flipped {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.flip-card-front {
    position: relative;
}

.flip-card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--ss-surface);
    border-radius: 0.75rem;
    padding: 1rem;
}

.flip-card-back .peek-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ss-gold);
    margin-bottom: 0.25rem;
}

.flip-card-back .peek-word {
    font-size: 2rem;
    font-weight: 700;
    color: var(--ss-gold);
    letter-spacing: 0.1em;
}

/* ---------- Sound Toggle ---------- */
.ss-sound-toggle {
    background: none;
    border: 1px solid var(--ss-border);
    color: var(--ss-grey);
    border-radius: 2rem;
    padding: 0.35rem 0.9rem;
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.ss-sound-toggle:hover {
    color: var(--ss-white);
    border-color: var(--ss-white);
}

/* ---------- Responsive ---------- */
@media (max-width: 767.98px) {
    #spelling-app {
        padding: 0.5rem;
        min-height: auto;
        height: 100dvh;
        display: flex;
        flex-direction: column;
    }

    .ss-screen {
        display: flex;
        flex-direction: column;
        flex: 1;
        min-height: 0;
        overflow: hidden;
    }

    .ss-screen .ss-header {
        padding: 0.5rem 0;
    }

    .ss-screen .ss-header h1 {
        font-size: 1.25rem;
    }

    .ss-screen .ss-card {
        flex: 1;
        min-height: 0;
        overflow-y: auto;
        padding: 0.75rem;
        margin-bottom: 0.5rem;
    }

    .ss-screen .word-display {
        padding: 0.75rem 0;
        min-height: 60px;
        font-size: 2rem;
    }

    .ss-screen .flip-card {
        min-height: 60px;
    }

    .ss-screen .flip-card-inner {
        min-height: 60px;
    }

    .ss-keyboard {
        margin-top: auto;
        flex-shrink: 0;
        padding-bottom: 0.25rem;
    }

    .word-toolbar {
        margin-bottom: 0.25rem;
        gap: 0.5rem;
    }

    .word-toolbar-btn {
        width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }

    .ss-progress {
        margin-bottom: 0.5rem;
    }

    .ss-nav {
        padding: 0.4rem 0.75rem;
    }
}

@media (min-width: 768px) {
    .word-display {
        font-size: 3.5rem;
    }

    .letter-tile {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1.75rem;
    }
}