/* ===================
   Base Styles
   =================== */
* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: white;
    min-height: 100vh;
    min-height: 100dvh;
}

#app {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
    min-height: 100vh;
    min-height: 100dvh;
}

.screen {
    min-height: calc(100vh - 32px);
    min-height: calc(100dvh - 32px);
}

.hidden {
    display: none !important;
}

/* ===================
   Typography
   =================== */
h1 {
    font-size: 2rem;
    margin: 0 0 10px 0;
    text-align: center;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    color: #fff;
}

h2 {
    font-size: 1.5rem;
    margin: 0;
    color: #fff;
}

h3 {
    font-size: 1rem;
    margin: 0;
    color: #fff;
}

.subtitle {
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 25px 0;
    font-size: 1.1rem;
    text-align: center;
}

/* ===================
   Buttons
   =================== */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: transform 0.1s, box-shadow 0.2s, background-color 0.2s;
}

button:hover {
    filter: brightness(1.1);
}

button:active {
    transform: scale(0.97);
}

.btn-primary {
    width: 100%;
    padding: 16px;
    margin-top: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 12px;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.4);
}

.btn-secondary {
    width: 100%;
    padding: 14px;
    margin-top: 15px;
    font-size: 1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
}

.btn-link {
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    padding: 15px;
    margin-top: 20px;
    width: 100%;
}

.btn-link:hover {
    color: rgba(255, 255, 255, 0.9);
}

.btn-switch {
    width: 48px;
    height: 48px;
    padding: 0;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-switch:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-back {
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    font-size: 0.95rem;
    color: white;
    font-weight: 500;
}

/* ===================
   Profile Select Screen
   =================== */
#profileSelectScreen {
    padding-top: 40px;
    text-align: center;
}

.profile-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.profile-hint {
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 12px 0;
    font-size: 1rem;
}

.profile-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.profile-item:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-1px);
}

.profile-avatar {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
}

.profile-info {
    flex: 1;
    text-align: left;
}

.profile-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
}

.profile-score {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 2px;
}

.name-input-section {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 20px;
}

input {
    width: 100%;
    padding: 14px 18px;
    font-size: 1.1rem;
    border-radius: 12px;
    border: 2px solid transparent;
    background: white;
    color: #1e1b4b;
    outline: none;
}

input:focus {
    border-color: #22c55e;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
}

input::placeholder {
    color: #94a3b8;
}

.no-profiles {
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    padding: 20px;
}

/* ===================
   Mode Select Screen
   =================== */
#modeSelectScreen {
    padding-top: 10px;
}

.mode-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 15px;
    padding: 10px 0;
}

.mode-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
}

.mode-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    text-align: left;
    transition: background-color 0.2s, transform 0.1s;
    color: white;
}

.mode-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-2px);
}

.mode-btn:active {
    transform: scale(0.98);
}

.mode-btn.adventure {
    border-left: 4px solid #22c55e;
}

.mode-btn.skill {
    border-left: 4px solid #8b5cf6;
}

.mode-btn.quick {
    border-left: 4px solid #f59e0b;
}

.mode-icon {
    font-size: 1.8rem;
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mode-content {
    flex: 1;
    min-width: 0;
}

.mode-title {
    font-size: 1.15rem;
    font-weight: 600;
    display: block;
    color: #fff;
    margin-bottom: 4px;
}

.mode-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
    display: block;
    line-height: 1.4;
}

.mode-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    padding: 24px 20px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 16px;
}

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

.stat-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: #fbbf24;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}

/* Profile switch section */
.profile-switch-section {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn-switch-user,
.btn-new-user {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-switch-user:hover,
.btn-new-user:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-switch-user span,
.btn-new-user span {
    font-size: 1.1rem;
}

/* ===================
   Skill Select Screen
   =================== */
#skillSelectScreen {
    padding-top: 10px;
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 10px 0;
}

.skill-header h2 {
    flex: 1;
    font-size: 1.3rem;
}

.skill-categories {
    max-height: calc(100vh - 150px);
    max-height: calc(100dvh - 150px);
    overflow-y: auto;
    padding-right: 5px;
}

.skill-category {
    margin-bottom: 24px;
}

.category-title {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    padding-left: 4px;
}

.skill-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.skill-item:hover {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-1px);
}

.skill-item:active {
    transform: scale(0.98);
}

.skill-icon {
    font-size: 1.4rem;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.skill-info {
    flex: 1;
    min-width: 0;
}

.skill-name {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

.skill-level {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

.skill-stars {
    font-size: 1rem;
    color: #fbbf24;
    letter-spacing: 2px;
}

/* ===================
   Level Select Screen
   =================== */
#levelSelectScreen {
    padding-top: 10px;
}

.level-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
    padding: 10px 0;
}

.level-header h2 {
    font-size: 1.3rem;
}

.level-list {
    max-height: calc(100vh - 150px);
    max-height: calc(100dvh - 150px);
    overflow-y: auto;
    padding-right: 5px;
}

.phase-section {
    margin-bottom: 24px;
}

.phase-title {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-left: 4px;
}

.level-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.level-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.level-item:hover:not(.locked) {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-1px);
}

.level-item:active:not(.locked) {
    transform: scale(0.98);
}

.level-item.locked {
    opacity: 0.5;
    cursor: not-allowed;
}

.level-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
}

.level-item.locked .level-number {
    background: rgba(255, 255, 255, 0.15);
}

.level-info {
    flex: 1;
    min-width: 0;
}

.level-name {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.level-desc {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

.level-stars {
    font-size: 1rem;
    color: #fbbf24;
    letter-spacing: 2px;
}

.level-locked {
    font-size: 1.2rem;
}

.level-mastery {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    min-width: 40px;
    text-align: right;
    font-weight: 500;
}

.btn-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px;
    margin-top: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-timer .btn-icon {
    font-size: 1.3rem;
}

/* ===================
   Code Screen
   =================== */
.code-section {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 15px;
    text-align: center;
}

.code-hint {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    margin: 0 0 15px 0;
}

textarea {
    width: 100%;
    padding: 14px;
    font-size: 0.9rem;
    font-family: 'SF Mono', 'Consolas', monospace;
    border-radius: 12px;
    border: 2px solid transparent;
    background: white;
    color: #1e1b4b;
    resize: none;
    outline: none;
}

textarea:focus {
    border-color: #8b5cf6;
}

.code-display {
    background: rgba(0, 0, 0, 0.25);
    padding: 15px;
    border-radius: 12px;
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.75rem;
    word-break: break-all;
    line-height: 1.5;
    margin-bottom: 15px;
    max-height: 100px;
    overflow-y: auto;
    text-align: left;
    color: rgba(255, 255, 255, 0.9);
}

.code-result {
    margin-top: 12px;
    padding: 12px;
    border-radius: 10px;
    font-weight: 500;
}

.code-result:empty {
    display: none;
}

.code-result.success {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.code-result.error {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* ===================
   Game Screen
   =================== */
#game {
    padding-top: 10px;
    text-align: center;
}

#topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 14px;
}

#score {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
}

#levelTitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

#questionCount {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

#timer {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
}

#timer.warning {
    color: #ef4444;
    animation: pulse 0.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Progress Bar */
.progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    margin-bottom: 15px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #22c55e, #4ade80);
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

/* Question Display */
#question {
    font-size: 2.8rem;
    font-weight: 700;
    margin: 15px 0;
    padding: 15px;
    min-height: 85px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, color 0.2s;
    color: #fff;
}

#question.correct {
    color: #4ade80;
    transform: scale(1.05);
}

#question.wrong {
    color: #f87171;
    animation: shake 0.3s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Hint Area */
.hint-area {
    background: rgba(251, 191, 36, 0.12);
    border: 2px solid rgba(251, 191, 36, 0.4);
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 12px;
    text-align: left;
    animation: fadeIn 0.3s ease;
}

.hint-area.hint-level-1 {
    border-color: rgba(251, 191, 36, 0.4);
}

.hint-area.hint-level-2 {
    border-color: rgba(251, 191, 36, 0.6);
}

.hint-area.hint-level-3 {
    border-color: rgba(251, 191, 36, 0.8);
}

.hint-area.hint-level-4 {
    border-color: #fbbf24;
    background: rgba(251, 191, 36, 0.2);
}

.hint-text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.95);
}

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

/* Answer Box */
#answerBox {
    font-size: 2.2rem;
    font-weight: 600;
    background: white;
    color: #1e1b4b;
    padding: 15px 20px;
    border-radius: 16px;
    margin-bottom: 12px;
    min-height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s, transform 0.2s;
}

#answerBox.correct {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    transform: scale(1.05);
}

#answerBox.wrong {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    animation: shake 0.3s;
}

#answerBox.trying {
    /* Gentle "oops" feedback - not aggressive */
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    animation: gentleShake 0.25s;
}

@keyframes gentleShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

#answerBox.showing-correct {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    font-size: 1.6rem;
}

#answerBox .correct-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-right: 8px;
    font-weight: 400;
}

/* Feedback */
.feedback {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    font-size: 5rem;
    opacity: 0;
    transition: transform 0.2s, opacity 0.2s;
    pointer-events: none;
    z-index: 100;
}

.feedback.show {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.feedback.correct {
    color: #22c55e;
    text-shadow: 0 0 30px rgba(34, 197, 94, 0.8);
}

.feedback.tryagain {
    /* Subtle, non-punishing feedback */
    color: rgba(255, 255, 255, 0.4);
    font-size: 3rem;
    text-shadow: none;
}

.feedback.wrong {
    /* Keep for backwards compatibility but make it gentler */
    color: #fbbf24;
    text-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
}

/* Keypad */
#keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

#keypad button {
    padding: 16px;
    font-size: 1.5rem;
    font-weight: 600;
    border-radius: 14px;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: white;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

#keypad .btn-hint {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    font-size: 1.3rem;
}

#keypad .btn-ok {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

/* Game Actions */
.game-actions {
    display: flex;
    gap: 10px;
}

.btn-delete-wide {
    flex: 1;
    padding: 12px;
    font-size: 1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    font-weight: 500;
}

.btn-menu {
    flex: 1;
    padding: 12px;
    font-size: 1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    font-weight: 500;
}

/* ===================
   Modal
   =================== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 200;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: linear-gradient(135deg, #312e81 0%, #1e1b4b 100%);
    border-radius: 20px;
    padding: 32px 28px;
    max-width: 380px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-content h2 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: #fff;
}

.end-stats {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.9);
}

.end-stats strong {
    color: #4ade80;
}

.end-stars {
    font-size: 2.5rem;
    margin: 15px 0;
    letter-spacing: 8px;
}

.end-message {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
}

.end-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.end-actions .btn-secondary {
    margin-top: 0;
}

.end-actions .btn-primary {
    margin-top: 0;
}

/* ===================
   Responsive - Small phones
   =================== */
@media (max-height: 700px) {
    #question {
        font-size: 2.2rem;
        margin: 8px 0;
        min-height: 65px;
    }
    
    #answerBox {
        font-size: 1.8rem;
        padding: 12px 15px;
        min-height: 55px;
    }
    
    #keypad button {
        padding: 12px;
        font-size: 1.3rem;
    }
    
    .level-list,
    .skill-categories {
        max-height: calc(100vh - 130px);
    }
    
    .hint-area {
        padding: 10px 12px;
    }
    
    .hint-text {
        font-size: 0.85rem;
    }
}

/* ===================
   Responsive - Tablet (768px+)
   =================== */
@media (min-width: 550px) {
    body {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }
    
    #app {
        max-width: 480px;
        background: rgba(0, 0, 0, 0.2);
        border-radius: 24px;
        min-height: auto;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
        padding: 24px;
    }
    
    .screen {
        min-height: auto;
    }
    
    .level-list,
    .skill-categories {
        max-height: 450px;
    }
    
    .mode-btn {
        padding: 20px 22px;
    }
    
    #keypad button {
        padding: 18px;
        font-size: 1.6rem;
    }
    
    #question {
        font-size: 3rem;
    }
    
    #answerBox {
        font-size: 2.4rem;
    }
}

/* ===================
   Responsive - Tablet landscape / Small desktop (900px+)
   =================== */
@media (min-width: 900px) {
    #app {
        max-width: 520px;
        padding: 28px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .mode-header h2 {
        font-size: 1.8rem;
    }
    
    .mode-btn {
        padding: 22px 24px;
    }
    
    .mode-icon {
        width: 56px;
        height: 56px;
        font-size: 2rem;
    }
    
    .mode-title {
        font-size: 1.2rem;
    }
    
    .mode-desc {
        font-size: 0.95rem;
    }
    
    .stat-value {
        font-size: 2.5rem;
    }
    
    .skill-item,
    .level-item {
        padding: 16px 18px;
    }
    
    .profile-item {
        padding: 18px 20px;
    }
    
    #keypad button {
        padding: 20px;
        font-size: 1.7rem;
        border-radius: 16px;
    }
    
    #keypad {
        gap: 10px;
    }
    
    #question {
        font-size: 3.2rem;
        min-height: 100px;
    }
    
    #answerBox {
        font-size: 2.6rem;
        min-height: 75px;
        border-radius: 18px;
    }
    
    .level-list,
    .skill-categories {
        max-height: 500px;
    }
}

/* ===================
   Responsive - Desktop (1200px+)
   =================== */
@media (min-width: 1200px) {
    #app {
        max-width: 560px;
        padding: 32px;
    }
    
    .mode-options {
        gap: 14px;
    }
    
    .skill-grid,
    .level-grid {
        gap: 10px;
    }
    
    #keypad button {
        padding: 22px;
        font-size: 1.8rem;
    }
    
    #question {
        font-size: 3.5rem;
    }
    
    #answerBox {
        font-size: 2.8rem;
    }
    
    .modal-content {
        max-width: 420px;
        padding: 36px 32px;
    }
}

/* ===================
   Hover states for desktop
   =================== */
@media (hover: hover) {
    .profile-item:hover,
    .mode-btn:hover,
    .skill-item:hover,
    .level-item:hover:not(.locked) {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }
    
    #keypad button:hover {
        filter: brightness(1.1);
        transform: translateY(-2px);
    }
    
    .btn-primary:hover {
        box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
        transform: translateY(-2px);
    }
    
    .btn-timer:hover {
        box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        transform: translateY(-2px);
    }
}

/* ===================
   Custom scrollbar
   =================== */
.level-list::-webkit-scrollbar,
.skill-categories::-webkit-scrollbar {
    width: 6px;
}

.level-list::-webkit-scrollbar-track,
.skill-categories::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
}

.level-list::-webkit-scrollbar-thumb,
.skill-categories::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.25);
    border-radius: 3px;
}

.level-list::-webkit-scrollbar-thumb:hover,
.skill-categories::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.35);
}

/* ===================
   Focus states for accessibility
   =================== */
button:focus-visible,
input:focus-visible {
    outline: 2px solid #8b5cf6;
    outline-offset: 2px;
}

/* ===================
   Print styles
   =================== */
@media print {
    body {
        background: white;
        color: black;
    }
    
    #app {
        box-shadow: none;
    }
}