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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f6f0;
    background-image: radial-gradient(#dcdcdc 0.5px, transparent 0.5px);
    background-size: 15px 15px;
    /* Fill the full dynamic viewport — 100dvh accounts for iOS Safari's
       collapsing address bar so the canvas is never clipped */
    height: 100vh;
    height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: stretch;
    padding: 12px;
    overflow: hidden;
    touch-action: none;
    overscroll-behavior: none;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

.branding-section {
    position: absolute;
    left: 0;
    top: 0;
}

.brand-logo {
    max-width: 150px;
    height: auto;
    display: block;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
    opacity: 0.8;
}

.container {
    width: 100%;
    max-width: 900px;
    /* Take up the full available height so the canvas can flex into it */
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 0 auto;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
    /* Tighter for compact look */
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 12px 30px;
    /* Slimmer height */
    border-radius: 20px;
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.04),
        0 2px 4px rgba(0, 0, 0, 0.02),
        inset 0 0 0 1px rgba(255, 255, 255, 0.8);
    position: relative;
    max-width: 950px;
    width: 95%;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.controls-row {
    display: flex;
    width: 100%;
    align-items: center;
}

.top-row {
    justify-content: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    padding-bottom: 10px;
    margin-bottom: 4px;
}

.settings-group {
    display: flex;
    gap: 24px;
    align-items: center;
}

.middle-row {
    justify-content: center;
    position: relative;
    padding-bottom: 2px;
}

.print-group {
    display: flex;
    gap: 15px;
}

.status-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-top: 4px;
    padding-left: 24px;
    /* Align with bulb edge */
}

.meta-info {
    font-size: 8px;
    /* Very subtle */
    color: #ccc;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.meta-info span {
    margin-left: 12px;
}

.progress-label {
    font-size: 10px;
    font-weight: 800;
    color: #bbb;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-left: 24px;
    /* Offset to align with tube edge */
    transition: all 0.3s ease;
}

.bottom-row {
    display: flex;
    /* Force flex in all environments */
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    margin-top: 10px;
    width: 100%;
}

.action-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.clear-button {
    background: linear-gradient(135deg, #536dfe 0%, #3d5afe 100%);
    color: white;
    border: none;
    padding: 10px 22px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(83, 109, 254, 0.2);
}

.clear-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(83, 109, 254, 0.3);
}

.new-word-button {
    background: linear-gradient(135deg, #ffb300 0%, #ffa000 100%);
    color: white;
    border: none;
    padding: 10px 22px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(255, 179, 0, 0.2);
}

.new-word-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(255, 179, 0, 0.3);
}

.new-word-button:active {
    transform: translateY(0);
}

.print-button {
    background: linear-gradient(135deg, #16a085 0%, #1abc9c 100%);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(22, 160, 133, 0.3);
}

.print-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(22, 160, 133, 0.5);
}

.draw-print {
    background: linear-gradient(135deg, #8e44ad 0%, #9b59b6 100%);
    box-shadow: 0 4px 15px rgba(142, 68, 173, 0.3);
}

.draw-print:hover {
    box-shadow: 0 6px 20px rgba(142, 68, 173, 0.5);
}

.vocab-print {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.vocab-print:hover {
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.5);
}

.independent-print:hover {
    box-shadow: 0 6px 20px rgba(44, 62, 80, 0.5);
}

.reversal-print {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.reversal-print:hover {
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.5);
}

.reversal-group {
    display: flex;
    align-items: center;
    background: #fdfdfd;
    padding: 3px;
    border: 1.5px solid #eee;
    border-radius: 12px;
}

.reversal-group input {
    border: none;
    background: transparent;
    padding: 4px 10px;
    width: 70px;
    font-size: 14px;
    font-weight: 700;
    color: #e74c3c;
    text-align: center;
    outline: none;
}

.reversal-group button {
    margin: 0 !important;
}

.word-display {
    display: none;
    /* Hidden used for internal logic or debug if needed */
}

.header-meta {
    position: absolute;
    right: 30px;
    top: 25px;
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.level-indicator,
.mode-indicator {
    font-size: 0.7rem;
    font-weight: 800;
    color: #2c3e50;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.2;
    opacity: 0.8;
}

.mode-indicator {
    opacity: 0.6;
}

.canvas-wrapper {
    display: flex;
    /* Grow to fill all remaining vertical space after controls */
    flex: 1;
    min-height: 0; /* Critical: allows flex child to shrink below content size */
    background: #f5f1e8;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    /* Parchment texture using CSS */
    background-image:
        repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(139, 119, 101, 0.03) 2px,
            rgba(139, 119, 101, 0.03) 4px),
        repeating-linear-gradient(90deg,
            transparent,
            transparent 2px,
            rgba(139, 119, 101, 0.03) 2px,
            rgba(139, 119, 101, 0.03) 4px);
}

.guides-column {
    width: 60px;
    flex-shrink: 0;
    /* Prevent column from being squashed in portrait */
    background: rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 0;
    position: relative;
    pointer-events: none;
    transition: width 0.3s ease, border-color 0.3s ease;
}

/* Hard / Expert: hide the emoji landmark column — it's for young learners */
.guides-column.guides-hidden {
    width: 0;
    border-right-color: transparent;
    overflow: hidden;
}

.guide-icon {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    opacity: 0.6;
    filter: grayscale(0.2);
}

#drawingCanvas {
    display: block;
    width: 100%;
    /* Flex: fill the full canvas-wrapper height — no fixed pixels */
    flex: 1;
    min-height: 0;
    height: 100%;
    cursor: crosshair;
    touch-action: none;
}

/* ─── Mobile optimizations (≤ 768px) ─────────────────────────────────────── */

/* ─── Hamburger only shows on mobile ─────────────────────────────────────── */
@media (min-width: 769px) {
    .hamburger-btn {
        display: none;
    }
}

/* ─── iPad / tablet (768–1024px) ─────────────────────────────────────────── */
/* No fixed canvas height — flex:1 handles it for all tablet sizes too */
@media (min-width: 768px) and (max-width: 1024px) {
    body {
        padding: 10px;
    }
    .controls {
        padding: 12px 20px;
        flex-shrink: 0;
    }
}



.settings-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.settings-item label {
    font-size: 14px;
    font-weight: bold;
    color: #2c3e50;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Setting Buttons */
.setting-val {
    background: #fff;
    border: 1.5px solid rgba(44, 62, 80, 0.2);
    color: #2c3e50;
    font-size: 1.2rem;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 12px;
    cursor: pointer;
    min-width: 80px;
    transition: all 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.setting-val:active {
    background: #2c3e50;
    color: #fff;
    transform: scale(0.95);
}

/* Settings Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    transition: opacity 0.3s;
}

.overlay.hidden {
    display: none !important;
    opacity: 0;
    pointer-events: none;
}

.overlay-content {
    background: white;
    padding: 2.5rem;
    border-radius: 25px;
    text-align: center;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.4);
}

#overlayTitle {
    margin-bottom: 2rem;
    color: #2c3e50;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
    margin-bottom: 2rem;
}

.option-btn {
    background: #f8f9ff;
    border: 2px solid #b5c1fb;
    color: #333;
    padding: 20px 10px;
    border-radius: 15px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.option-btn:active {
    background: #2c3e50;
    border-color: #2c3e50;
    color: white;
    transform: scale(0.9);
}

.option-btn.active {
    background: #2c3e50;
    color: white;
    border-color: #2c3e50;
}

.close-overlay {
    background: #eee;
    border: none;
    color: #666;
    padding: 12px 30px;
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
}

.version-tag {
    position: fixed;
    bottom: 10px;
    right: 15px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    font-family: monospace;
    pointer-events: none;
}

/* Game Progression - Mercurial Thermometer */
.progress-section {
    flex: 1;
    /* Aggressive growth */
    display: flex;
    flex-direction: column;
    align-items: stretch;
    /* Force children to match parent width */
    gap: 4px;
    min-width: 0;
    /* Webkit fix for overgrowing children */
}

.thermometer-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 20px;
    height: 24px;
    flex-grow: 1;
    width: 100%;
}

.thermometer-bulb {
    width: 32px;
    height: 32px;
    background: radial-gradient(circle at 35% 35%, #fff 0%, #d1d1d1 50%, #8a8a8a 100%);
    border: 2px solid #fff;
    border-radius: 50%;
    position: absolute;
    left: 0;
    transform: translate(-50%, 0);
    /* Center on the leading edge */
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: left 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.thermometer-tube {
    flex: 1;
    /* Allow full fill */
    height: 18px;
    background: rgba(0, 0, 0, 0.05);
    /* Slightly darker for better contrast */
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 9px;
    /* Pill shape */
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(4px);
}

.thermometer-mercury {
    height: 100%;
    width: 0%;
    /* Dynamic */
    background: linear-gradient(to right, #6c5ce7, #a29bfe);
    border-radius: 20px;
    transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    box-shadow: 0 0 10px rgba(108, 92, 231, 0.3);
}

/* Splash Animation */
.thermometer-mercury.splash {
    animation: mercury-splash 0.5s ease-out;
}

@keyframes mercury-splash {
    0% {
        filter: brightness(1) contrast(1);
    }

    50% {
        filter: brightness(1.4) contrast(1.2);
        transform: scaleY(1.1);
    }

    100% {
        filter: brightness(1) contrast(1);
        transform: scaleY(1);
    }
}

/* Metallic Shine / Mercury Highlight */
.thermometer-mercury::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 2px;
}

.progress-label {
    font-family: 'Segoe UI', sans-serif;
    font-size: 0.7rem;
    font-weight: 800;
    color: #2c3e50;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.5;
}

/* Re-adjusting mobile spacing for the new section */
@media (max-width: 768px) {
    .bottom-row {
        flex-direction: column;
        gap: 20px;
    }

    .action-group {
        justify-content: center;
        width: 100%;
    }
}

/* Constraints removed to allow full widescreen expansion */

/* Modal Overlay */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex !important;
    /* Force flex */
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    transition: opacity 0.3s;
}

.modal.hidden {
    display: none !important;
    visibility: hidden !important;
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    font-family: sans-serif;
    max-width: 90%;
    width: 400px;
    animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-content h2 {
    color: #1a1a2e;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.modal-content p {
    font-size: 1.2rem;
    color: #4a4a4a;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

#playAgainBtn {
    background: linear-gradient(135deg, #1a1a2e 0%, #2c3e50 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
    transition: transform 0.2s;
}

#playAgainBtn:hover {
    transform: scale(1.05);
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

#vocabModal {
    /* Using default modal styles (centered, dark overlay) */
    align-items: center !important;
}

#vocabModal .vocab-content {
    border: 5px solid #2c3e50;
    padding: 2.5rem;
    width: 600px;
    max-width: 95%;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

#vocabModal h2 {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
    color: #2c3e50;
}

.vocab-target-word {
    font-size: 3.5rem;
    font-weight: 800;
    color: #2c3e50;
    letter-spacing: 5px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    font-family: 'Segoe UI', sans-serif;
}

.vocab-grid {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.vocab-option {
    background: #f8f9ff;
    border: 4px solid #b5c1fb;
    border-radius: 20px;
    width: 150px;
    height: 150px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
}

.vocab-option svg,
.vocab-option img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.vocab-option:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.vocab-option.correct {
    border-color: #a8e063;
    background: #e8f5e9;
    transform: scale(1.1);
}

.vocab-option.incorrect {
    border-color: #ff6b6b;
    background: #ffebee;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px);
    }

    50% {
        transform: translateX(10px);
    }

    75% {
        transform: translateX(-10px);
    }
}

.missing-asset {
    font-family: inherit;
    font-weight: 800;
    color: #b5c1fb;
    font-size: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

@media print {
    body {
        background: white !important;
        background-image: none !important;
        margin: 0;
        padding: 0;
    }

    .container,
    .modal,
    .overlay,
    .version-tag,
    .branding-section {
        display: none !important;
    }

    #printableWorksheet {
        display: block !important;
        padding: 40px;
        width: 100%;
        color: #000;
    }

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

    .worksheet-logo {
        max-width: 180px;
    }

    .header-right {
        text-align: right;
        font-family: 'Segoe UI', sans-serif;
        font-size: 16px;
    }

    .meta-item {
        margin-bottom: 5px;
    }

    .worksheet-divider {
        border: 0;
        border-top: 2px solid #333;
        margin-bottom: 40px;
    }

    .worksheet-title {
        text-align: center;
        font-size: 24px;
        font-weight: bold;
        margin-bottom: 60px;
        text-transform: uppercase;
        letter-spacing: 2px;
    }

    .trace-row {
        position: relative;
        height: 120px;
        margin-bottom: 80px;
        width: 100%;
    }

    .trace-guide {
        position: absolute;
        left: 0;
        right: 0;
        border-top: 1px solid #ccc;
    }

    .trace-guide.sky {
        top: 0;
        border-color: rgba(74, 144, 226, 0.4);
    }

    .trace-guide.plane {
        top: 33.3%;
        border-style: dashed;
        border-color: rgba(0, 0, 0, 0.2);
    }

    .trace-guide.grass {
        bottom: 33.3%;
        border-top-width: 2px;
        border-color: rgba(126, 211, 33, 0.6);
    }

    .trace-guide.worm {
        bottom: 0;
        border-color: rgba(139, 119, 101, 0.3);
    }

    .trace-text {
        position: absolute;
        top: 0;
        left: 0;
        height: 80px;
        /* Exact height from Sky to Grass line (120px * 0.666) */
        width: 100%;
        display: flex;
        align-items: flex-end;
        /* Aligns text baseline to the bottom of this box (the Grass line) */
        font-family: 'Courier New', Courier, monospace;
        font-size: 78px;
        /* High enough to hit Sky line, but adjusted for font metrics */
        line-height: 0.8;
        letter-spacing: 12px;
        color: rgba(0, 0, 0, 0.1);
        padding-left: 10px;
        white-space: nowrap;
    }

    /* Draw & Write Specifics */
    .large-name-field {
        font-family: 'Segoe UI', Arial, sans-serif;
        font-size: 32px;
        font-weight: 600;
        margin-bottom: 50px;
        width: 100%;
    }

    .large-name-field span {
        border-bottom: 2px solid #000;
        display: inline-block;
        width: 400px;
        margin-left: 10px;
    }

    .draw-box {
        width: 100%;
        height: 500px;
        border: 3px solid #000;
        margin-bottom: 60px;
    }

    .guides-container {
        margin-top: 40px;
    }

    .trace-row.no-text {
        height: 60px;
        margin-bottom: 40px;
    }

    .guide-icons-print {
        position: absolute;
        left: -40px;
        top: -6px;
        /* Offset to center emojis on lines */
        bottom: -14px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        font-size: 20px;
        line-height: 1;
    }

    .short-row {
        margin-left: 60px;
        width: calc(100% - 60px) !important;
    }
}

#printableWorksheet {
    display: none;
}

@media print {
    @page {
        size: portrait;
        margin: 1cm;
    }

    .vocab-quiz-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 0;
        border-bottom: 1.5px dashed #ccc;
        min-height: 160px;
        page-break-inside: avoid;
    }

    .vocab-quiz-mini-guides {
        flex: 0 0 25px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        height: 120px;
        font-size: 14px;
        margin-right: 10px;
    }

    .vocab-quiz-word-box {
        flex: 0 0 40%;
        position: relative;
        height: 120px;
        margin-right: 20px;
    }

    .quiz-word-trace {
        font-family: 'Courier New', Courier, monospace;
        font-size: 68px;
        color: rgba(0, 0, 0, 0.15);
        /* More pronounced but still good for tracing */
        letter-spacing: 5px;
        position: absolute;
        width: 100%;
        top: 0;
        height: 80px;
        /* Height from Sky to Grass line in 120px box (66%) */
        display: flex;
        align-items: flex-end;
        line-height: 0.8;
        z-index: 2;
        /* Guidelines and letters only - decoration removed per request */
    }

    .vocab-quiz-options {
        flex: 1;
        display: flex;
        justify-content: space-around;
        align-items: center;
        gap: 10px;
    }

    .vocab-quiz-option {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .quiz-image {
        width: 85px;
        height: 85px;
        object-fit: contain;
        border: 1px solid #eee;
        padding: 4px;
        border-radius: 10px;
        background: #fff;
    }

    .quiz-checkbox {
        width: 18px;
        height: 18px;
        border: 2px solid #444;
        border-radius: 4px;
        background: #fff;
    }

    /* Reversal Worksheet Styles */
    .reversal-row {
        display: flex;
        align-items: center;
        gap: 25px;
        margin-bottom: 25px;
        /* Reduced from 50px */
        page-break-inside: avoid;
    }

    .reversal-commander {
        font-size: 75px;
        /* Sized down slightly */
        font-family: 'Courier New', Courier, monospace;
        font-weight: bold;
        border: 4px solid #000;
        width: 100px;
        height: 100px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 12px;
        flex-shrink: 0;
    }

    .reversal-targets {
        display: flex;
        gap: 15px;
        flex: 1;
        justify-content: space-between;
    }

    .reversal-char {
        font-size: 70px;
        /* Sized down slightly */
        font-family: 'Courier New', Courier, monospace;
        color: rgba(0, 0, 0, 0.1);
        /* Traceable */
        width: 80px;
        height: 80px;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
    }

    .mirror {
        transform: scaleX(-1);
        display: inline-block;
    }

    .reversal-instructions {
        text-align: center;
        margin-bottom: 25px;
        /* Reduced from 40px */
        padding: 12px;
        background: #fdfdfd;
        border: 2px solid #eee;
        border-radius: 10px;
    }
}@media (max-width: 768px) {
    body {
        padding: 8px;
    }

    /* Canvas fills remaining height — no fixed pixels needed */
    #drawingCanvas {
        flex: 1;
        height: 100%;
    }

    .guides-column {
        width: 45px;
    }

    .guide-icon {
        font-size: 18px;
    }

    .controls {
        padding: 10px 16px;
        /* Compact the controls so the canvas gets maximum space */
        flex-shrink: 0;
    }

    .clear-button {
        padding: 10px 25px;
        font-size: 14px;
    }

    .top-row {
        position: relative !important;
        min-height: 50px;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        padding-top: 5px;
        padding-bottom: 5px;
    }

    .branding-section {
        position: relative !important;
        display: block;
        margin-bottom: 5px;
        z-index: 10;
    }

    .brand-logo {
        max-width: 100px;
    }

    .meta-info {
        position: relative !important;
        right: auto !important;
        top: auto !important;
        transform: none !important;
        text-align: left;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }

    .level-indicator {
        font-size: 14px;
        line-height: 1.2;
    }

    .mode-indicator {
        font-size: 11px;
        line-height: 1.2;
    }

    .hamburger-btn {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        position: absolute;
        right: 15px;
        top: 15px;
        transform: none;
        width: 44px;
        height: 44px;
        background: white;
        border: 1px solid rgba(0,0,0,0.1);
        border-radius: 12px;
        cursor: pointer;
        z-index: 2100; /* Above the overlay */
        box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }

    .controls.mobile-open .hamburger-btn {
        background: #fdfdfd;
        border-color: #eee;
    }

    .hamburger-btn span {
        display: block;
        width: 24px;
        height: 3px;
        background-color: #2c3e50;
        border-radius: 3px;
        transition: all 0.3s ease;
        transform-origin: center;
    }

    /* Animate to X when open */
    .controls.mobile-open .hamburger-btn span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .controls.mobile-open .hamburger-btn span:nth-child(2) {
        opacity: 0;
    }
    .controls.mobile-open .hamburger-btn span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Mobile settings/menu as a full overlay */
    .controls.mobile-open {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        max-width: none;
        margin: 0;
        border-radius: 0;
        z-index: 2000;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        overflow-y: auto;
        padding-top: 80px; /* Space for branding and X */
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .settings-group {
        display: none !important;
        width: 100%;
        max-width: 400px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 20px;
        padding: 20px;
        gap: 15px;
    }

    .controls.mobile-open .settings-group {
        display: flex !important;
    }

    .settings-item label {
        font-size: 10px;
    }

    .setting-val {
        padding: 6px 10px;
        font-size: 12px;
        min-width: 60px;
    }

    /* Hide the print panel by default on mobile, can be toggled via JS */
    #mobileMenuPanel {
        display: none !important;
        flex-direction: column;
        align-items: center;
        width: 100%;
        max-width: 400px;
        margin-top: 10px;
        padding: 20px;
    }

    .controls.mobile-open #mobileMenuPanel {
        display: flex !important;
    }

    .print-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        width: 100%;
    }

    .print-button {
        padding: 8px 5px;
        font-size: 11px;
    }

    .reversal-group {
        grid-column: 1 / -1;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 5px;
        background: transparent;
        border: none;
        padding: 0;
    }

    .reversal-group input {
        border: 1px solid #eee;
        background: #fdfdfd;
        flex: 1;
        width: 50%;
        border-radius: 6px;
    }

    .reversal-group button {
        flex: 1;
    }

    /* Compact Modals for Mobile */
    .modal-content {
        padding: 1.5rem;
        width: 95%;
    }

    .modal-content h2 {
        font-size: 1.5rem;
    }

    #vocabModal .vocab-content {
        padding: 0.8rem;
        max-height: 98vh;
        overflow-y: auto;
    }

    .vocab-target-word {
        font-size: 2.2rem;
        letter-spacing: 2px;
        margin-bottom: 0.8rem;
    }

    .vocab-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .vocab-option {
        width: 100%;
        aspect-ratio: 1 / 1;
        height: auto;
        padding: 8px;
        border-width: 3px;
        border-radius: 12px;
    }

    #vocabModal h2 {
        font-size: 1.2rem;
    }
}