/* Generator Page Styles */

/* ── Tooltip ── */
.tooltip-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    margin-left: 5px;
}

.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: #FFD700;
    color: #7a5c00;
    font-size: 10px;
    font-weight: bold;
    font-family: Arial, sans-serif;
    cursor: default;
    line-height: 1;
    flex-shrink: 0;
    border: 1px solid #e6c200;
}

.tooltip-box {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #FFF9E6;
    color: #555;
    font-size: 12px;
    font-weight: normal;
    line-height: 1.6;
    padding: 8px 12px;
    border-radius: 8px;
    white-space: nowrap;
    pointer-events: none;
    z-index: 100;
    border: 1px solid #FFE082;
    box-shadow: 0 3px 10px rgba(0,0,0,0.10);
}

.tooltip-box::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #FFE082;
}

.tooltip-box::before {
    content: '';
    position: absolute;
    top: calc(100% - 1px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #FFF9E6;
    z-index: 1;
}

.tooltip-wrap:hover .tooltip-box {
    display: block;
}
/* ── / Tooltip ── */
:root {
    --border-color: #e0e0e0;
    --background-light: #fff9e6;
    --primary-color: #ffd700;
    --text-color: #333;
}

body {
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.generator-container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 20px;
}

.generator-container h1 {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 3rem;
    font-size: 2.5rem;
    font-weight: 600;
}

.generator-content {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    overflow: visible;
    justify-content: center;
}

/* Input Section */
.input-section {
    flex: 0 0 400px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-section h2 {
    color: var(--text-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

/* Title Input */
.title-input {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-bottom: 1rem;
    text-align: center;
}

.title-input h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 1rem;
}

.title-input input[type="text"] {
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    display: block;
    width: 100%;
    max-width: 400px;
}

.title-input .option-group {
    margin-top: 0.75rem;
    margin-bottom: 0;
    text-align: left;
}

.title-input input {
    width: calc(100% - 2rem);
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.title-input input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

/* Word Input */
.word-input {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    box-sizing: border-box;
}

.word-input h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 1rem;
}

.word-input .section-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.word-input .section-header h2 {
    margin: 0;
}

.reset-btn {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 0.3rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.reset-btn:hover {
    color: #4a90d9;
    transform: scale(1.2);
}

.vocab-item {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.english-word {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s ease;
    width: calc(100% - 60px);
    box-sizing: border-box;
}

.english-word:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.remove-word {
    background: #ff4444;
    color: white;
    border: none;
    border-radius: 8px;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.remove-word:hover {
    background: #ff2222;
    transform: translateY(-1px);
}

.vocab-textarea {
    width: 100%;
    height: 150px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    line-height: 1.5;
    resize: none;
    margin-bottom: 1rem;
    font-family: inherit;
    box-sizing: border-box;
}

.vocab-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.add-word-btn {
    width: 100%;
    background: var(--background-light);
    border: none;
    padding: 1rem;
    border-radius: 8px;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.add-word-btn:hover {
    background: #fff5d6;
    transform: translateY(-1px);
}

/* Options */
.options {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.option-group {
    margin-bottom: 1.2rem;
}

.option-group:first-child {
    display: flex;
    gap: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.option-group label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.5rem 0;
}

.option-group input[type="radio"],
.option-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--primary-color);
}

/* Case Options */
.case-options {
    display: flex;
    gap: 1.5rem;
}

.case-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.case-option input[type="radio"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--primary-color);
}

.case-option label {
    font-size: 0.9rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.case-icon {
    font-size: 1.1rem;
    font-weight: bold;
}

/* Preview Section */
.preview-section {
    flex: 1;
    max-width: 700px;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    box-sizing: border-box;
    overflow: visible;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 1070px;
    position: relative;
}

.preview-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    position: relative;
    overflow: visible;
    padding-top: 0.5rem;
}

#puzzle-preview {
    width: 210mm;
    height: 297mm;  /* A4 height */
    background: white;
    position: relative;
    transform: scale(0.73);
    transform-origin: top center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1), 0 0 8px rgba(0, 0, 0, 0.06);
    padding: 20mm;
    box-sizing: border-box;
    border-radius: 4px;
    margin: 0;
    display: block;
    min-height: 297mm;
}

/* Preview Header */
.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.preview-header h2 {
    color: var(--text-color);
    font-size: 1.3rem;
    margin: 0;
    font-weight: 500;
}

.preview-actions {
    width: 100%;
    display: flex;
    gap: 1rem;
    margin-top: auto;
    padding-top: 2rem;
    align-items: center;
    justify-content: center;
    position: absolute;
    bottom: 5rem;
    left: 0;
    z-index: 10;
}

.print-btn, .answer-btn {
    background: var(--primary-color);
    border: none;
    border-radius: 12px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.print-btn:hover, .answer-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.answer-btn.active {
    background: var(--background-light);
    border: 1px solid #ff4444;
    color: #ff4444;
    box-shadow: none;
    transform: none;
}

.puzzle-cell {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    border: 1px solid var(--border-color);
}

/* Word highlight styles */
.puzzle-grid {
    margin: 0 auto 8mm auto;
    border: 1px solid #000;
    display: table;
    width: 165mm;
    height: 165mm;
    position: relative;
    transform: none;
}

.puzzle-grid .puzzle-row {
    display: flex;
    justify-content: center;
    width: fit-content;
}

.puzzle-cell {
    border: 1px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14pt;
    font-weight: bold;
    box-sizing: border-box;
}

/* Grid Sizes for Different Levels */
.puzzle-grid.level-1 .puzzle-cell {
    width: calc(165mm / 8);
    height: calc(165mm / 8);
    font-size: 24pt;
}

.puzzle-grid.level-2 .puzzle-cell {
    width: calc(165mm / 11);
    height: calc(165mm / 11);
    font-size: 18pt;
}

.puzzle-grid.level-3 .puzzle-cell {
    width: calc(165mm / 15);
    height: calc(165mm / 15);
    font-size: 14pt;
}

/* Word List */
.word-list {
    margin-top: 6mm;
    padding-bottom: 0;
    text-align: center;
}

.word-list h3 {
    margin-bottom: 3mm;
    font-size: 14pt;
    color: var(--text-color);
    text-align: center;
}

.word-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0 2mm;
}

.word-list li {
    font-size: 12pt;
    display: inline;
}

.word-list li::before {
    content: "• ";
}

.word-list li:not(:last-child) {
    margin-right: 6mm;
}

/* Level 2: slightly smaller on screen */
.puzzle-grid.level-2 ~ .word-list li,
.puzzle-grid.level-2 ~ .word-list h3 + ul li {
    font-size: 10pt;
}

/* Level 3: compact on screen to match print */
#puzzle-preview:has(.puzzle-grid.level-3) .word-list li {
    font-size: 9pt;
}
#puzzle-preview:has(.puzzle-grid.level-3) .word-list h3 {
    font-size: 9pt;
    margin-bottom: 1mm;
}
#puzzle-preview:has(.puzzle-grid.level-3) .word-list li:not(:last-child) {
    margin-right: 3mm;
}

/* Action Buttons */
.action-buttons {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.action-button {
    background: white;
    border: 1px solid var(--primary-color);
    color: var(--text-color);
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.action-button:hover {
    background: var(--background-light);
}

.action-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Navigation styles moved to style.css */

/* Print Styles */
@page {
    size: A4;
    margin: 0;
}

@media print {
    /* Hide elements that should not be printed */
    .navbar,
    .utility-nav,
    .main-header,
    .top-menu,
    .generator-container > h1,
    .input-section,
    .preview-header,
    .description-section,
    .action-buttons,
    .print-btn,
    .preview-actions,
    footer {
        display: none !important;
    }

    /* Reset styles for the print containers */
    body,
    .generator-container,
    .generator-content,
    .preview-section,
    .preview-wrapper {
        background: white !important;
        width: auto !important;
        height: auto !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
        box-shadow: none !important;
        display: block !important;
        overflow: visible !important;
    }

    /* Style the actual printable area */
    #puzzle-preview {
        transform: none !important;
        width: 210mm !important;
        height: 297mm !important;
        padding: 20mm !important;
        margin: 0 !important;
        box-shadow: none !important;
        border: none !important;
        box-sizing: border-box !important;
        background: white !important;
        display: block !important;
        position: relative !important;
        overflow: visible !important;
    }

    .us-page-break {
        page-break-before: always !important;
        break-before: page !important;
        width: 210mm !important;
        min-height: 297mm !important;
        padding: 20mm !important;
        box-sizing: border-box !important;
        position: relative !important;
        margin-left: -20mm !important;
        margin-right: -20mm !important;
        margin-top: 0 !important;
        margin-bottom: 0 !important;
    }

    #puzzle-preview .student-header {
        display: flex !important;
        justify-content: space-between !important;
        align-items: flex-start !important;
        margin-bottom: 10mm !important;
        width: 100% !important;
    }

    #puzzle-preview .preview-logo {
        height: 12mm !important;
        width: auto !important;
        object-fit: contain !important;
    }

    #puzzle-preview .puzzle-title {
        text-align: center !important;
        font-size: 24pt !important;
        font-weight: bold !important;
        margin: 8mm 0 !important;
        display: block !important;
    }

    #puzzle-preview .puzzle-grid {
        margin: 0 auto 8mm auto !important;
        border: 1px solid #000 !important;
        display: table !important;
        width: 165mm !important;
        height: 165mm !important;
        position: relative !important;
        left: 0 !important;
        transform: none !important;
        border-collapse: collapse !important;
    }

    #puzzle-preview .puzzle-grid .puzzle-row {
        display: flex !important;
        justify-content: center !important;
        width: fit-content !important;
    }

    #puzzle-preview .puzzle-cell {
        border: 1px solid #000 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        font-size: 14pt !important;
        font-weight: bold !important;
        box-sizing: border-box !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    #puzzle-preview .puzzle-grid.level-1 .puzzle-cell {
        width: calc(165mm / 8) !important;
        height: calc(165mm / 8) !important;
        font-size: 24pt !important;
    }

    #puzzle-preview .puzzle-grid.level-2 .puzzle-cell {
        width: calc(165mm / 11) !important;
        height: calc(165mm / 11) !important;
        font-size: 18pt !important;
    }

    #puzzle-preview .puzzle-grid.level-3 .puzzle-cell {
        width: calc(165mm / 15) !important;
        height: calc(165mm / 15) !important;
        font-size: 14pt !important;
    }

    #puzzle-preview .word-list {
        margin-top: 6mm !important;
        padding-bottom: 0 !important;
        text-align: center !important;
        columns: none !important;
    }

    #puzzle-preview .word-list ul {
        list-style: none !important;
        padding: 0 !important;
        margin: 0 !important;
        text-align: center !important;
        display: flex !important;
        flex-wrap: wrap !important;
        justify-content: center !important;
        gap: 0 2mm !important;
    }

    #puzzle-preview .word-list li {
        font-size: 12pt !important;
        display: inline !important;
        margin: 0 !important;
    }

    #puzzle-preview .word-list li::before {
        content: "• " !important;
    }

    #puzzle-preview .word-list li:not(:last-child) {
        margin-right: 6mm !important;
    }

    /* Level 2 (15 words): slightly compact */
    #puzzle-preview:has(.puzzle-grid.level-2) .word-list {
        margin-top: 4mm !important;
    }
    #puzzle-preview:has(.puzzle-grid.level-2) .word-list li {
        font-size: 10pt !important;
    }
    #puzzle-preview:has(.puzzle-grid.level-2) .word-list li:not(:last-child) {
        margin-right: 4mm !important;
    }

    /* Level 3 (20 words): small & tight so all words fit on one page */
    #puzzle-preview:has(.puzzle-grid.level-3) .word-list {
        margin-top: 3mm !important;
    }
    #puzzle-preview:has(.puzzle-grid.level-3) .word-list h3 {
        font-size: 9pt !important;
        margin: 0 0 1mm !important;
    }
    #puzzle-preview:has(.puzzle-grid.level-3) .word-list ul {
        gap: 0 1mm !important;
        line-height: 1.6 !important;
    }
    #puzzle-preview:has(.puzzle-grid.level-3) .word-list li {
        font-size: 9pt !important;
    }
    #puzzle-preview:has(.puzzle-grid.level-3) .word-list li:not(:last-child) {
        margin-right: 3mm !important;
    }

    .answer-btn {
        display: none !important;
    }

    .puzzle-cell.answer-highlight::before {
        display: none !important;
    }

    .copyright-footer {
        display: block !important;
        position: absolute !important;
        bottom: 8mm !important;
        left: 0 !important;
        right: 0 !important;
        text-align: center !important;
        font-size: 8pt !important;
        color: #888 !important;
    }

    .bingo-page {
        padding-bottom: 15mm !important;
    }
}

/* Hide copyright footer on screen */
.copyright-footer {
    display: none;
}

/* Description Section */
.description-section {
    margin-top: 4rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.description-section h2 {
    color: var(--text-color);
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 2rem;
    text-align: center;
}

.description-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.instruction-block {
    padding: 1.5rem;
    background: var(--background-light);
    border-radius: 8px;
}

.instruction-block h3 {
    color: var(--text-color);
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.instruction-block ol,
.instruction-block ul {
    padding-left: 1.5rem;
    margin: 0;
}

.instruction-block li {
    color: var(--text-color);
    line-height: 1.6;
    margin-bottom: 0.8rem;
}

.instruction-block ol li {
    list-style-type: decimal;
}

.instruction-block ul li {
    list-style-type: disc;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .generator-content {
        grid-template-columns: 1fr;
    }

    .preview-wrapper {
        padding: 1rem;
        min-height: calc(297mm * 0.3);
    }

    .puzzle-preview {
        transform: scale(0.25);
    }

    .description-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    /* 제너레이터 레이아웃: 세로 스택 */
    .generator-content {
        flex-direction: column;
    }

    .input-section {
        flex: none;
        width: 100%;
    }

    .generator-container {
        margin: 1rem auto;
        padding: 0 12px;
    }

    .generator-container h1 {
        font-size: 1.6rem;
        margin-bottom: 1.5rem;
    }

    /* 미리보기 영역 */
    .preview-wrapper {
        padding: 0.75rem;
        min-height: 200px;
        overflow-x: auto;
    }

    .puzzle-preview {
        transform: scale(0.18);
        transform-origin: top left;
    }

    /* 버튼 전체 너비 */
    .generate-btn,
    .download-btn,
    .print-btn,
    .action-btn {
        width: 100%;
        font-size: 1rem;
        padding: 0.85rem 1rem;
    }

    /* 폼 요소 */
    .input-group {
        flex-direction: column;
    }

    .option-group {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    /* 헤더 여백 (fixed header 보정) */
    .generator-container {
        padding-top: 0.5rem;
    }
}

/* Logo Input */
.logo-input {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    box-sizing: border-box;
}

.logo-options {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.logo-option h3 {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.8rem;
    font-weight: 500;
}

.logo-controls {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.logo-text {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.logo-text:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.logo-upload {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: white;
}

.logo-upload:hover {
    border-color: var(--primary-color);
    background: var(--background-light);
}

.logo-upload i {
    font-size: 1.2rem;
    color: var(--text-color);
}

/* Preview Logo Styles */
.puzzle-header,
.puzzle-footer {
    position: relative;
    text-align: center;
    margin-bottom: 10mm;
}

.puzzle-header img,
.puzzle-footer img {
    max-height: 15mm;
    max-width: 80%;
    object-fit: contain;
}

.puzzle-header .logo-text,
.puzzle-footer .logo-text {
    font-size: 14pt;
    color: var(--text-color);
}

.preview-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1.5rem;
}

.puzzle-header {
    text-align: left;
    padding: 0;
    margin-bottom: 5mm;
}

@media print {
    .preview-logo {
        height: 12mm;
    }
    
    .puzzle-header {
        padding: 0;
        margin-bottom: 5mm;
    }
}

.clear-btn {
    width: 100%;
    background: #ff6b6b;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 12px;
}

.clear-btn:hover {
    background: #ff5252;
    transform: translateY(-1px);
}

.clear-btn i {
    font-size: 1.1rem;
}

/* Level Selection Styles */
.level-options {
    display: flex;
    gap: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.level-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.level-option input[type="radio"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--primary-color);
}

.level-option label {
    font-size: 0.9rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Preview Logo Styles */
.puzzle-header,
.puzzle-footer {
    position: relative;
    text-align: center;
    margin-bottom: 10mm;
}

.puzzle-header img,
.puzzle-footer img {
    max-height: 15mm;
    max-width: 80%;
    object-fit: contain;
}

.puzzle-header .logo-text,
.puzzle-footer .logo-text {
    font-size: 14pt;
    color: var(--text-color);
}

.preview-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1.5rem;
}

.puzzle-header {
    text-align: left;
    padding: 0;
    margin-bottom: 5mm;
}

@media print {
    .preview-logo {
        height: 12mm;
    }
    
    .puzzle-header {
        padding: 0;
        margin-bottom: 5mm;
    }
}

/* Add container for buttons */
.button-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    width: 100%;
}

.preview-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.preview {
    margin: 0 auto;  /* Center horizontally */
    position: relative;
    top: 50%;       /* Move down by 50% of container height */
    transform: translateY(-50%);  /* Move up by 50% of element height */
}

/* Remove the unnecessary styles */
.preview-container, .preview {
    display: none;
}

/* Generate Button */
.generate-btn {
    background: var(--primary-color);
    color: var(--text-color);
    border: none;
    padding: 1.2rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    width: 48%;
    margin: 0.5rem;
    display: inline-flex;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.student-header {
    display: flex;
    justify-content: space-between;  /* Changed to space-between to put logo left and info right */
    align-items: flex-start;
    margin-bottom: 10mm;
}

.header-left {
    display: flex;
    align-items: flex-start;
}

.info-group {
    display: flex;
    flex-direction: column;
    gap: 5mm;
    text-align: right;
}

.info-line {
    display: flex;
    align-items: baseline;
    font-size: 12pt;
    gap: 3mm;
    justify-content: flex-end;
}

.info-line label {
    font-weight: normal;
    min-width: 15mm;
}

.info-line .input-field {
    min-width: 50mm;
    height: 5mm;
    border-bottom: 0.2mm solid #999;
}

/* Puzzle Title */
.puzzle-title {
    text-align: center;
    font-size: 24pt;
    font-weight: bold;
    margin: 8mm 0;
}

/* Preview Label */
.preview-label {
    font-size: 2.1rem;
    color: var(--text-color);
    font-weight: bold;
    margin-bottom: 1.5rem;
    text-align: center;
    opacity: 0.8;
    letter-spacing: 0.5px;
}

@media print {
    .preview-label {
        display: none !important;
    }
}

.puzzle-cell.answer-highlight {
    color: #ff4444;
    font-weight: bold;
    position: relative;
}

/* Unscramble Worksheet Styles */
.worksheet-instructions {
    text-align: center;
    font-size: 12pt;
    margin: 8mm 0;
    color: var(--text-color);
}

.sentence-list {
    padding: 0;
    margin-top: 10mm;
}

.sentence-item {
    display: flex;
    flex-direction: column;
    margin-bottom: 8mm;
}

.sentence-line {
    display: flex;
    align-items: baseline;
    gap: 2mm;
    margin-bottom: 4mm;
}

.sentence-number {
    font-size: 12pt;
    font-weight: bold;
    min-width: 15pt;
}

.scrambled-words {
    font-size: 12pt;
    line-height: 1.5;
}

/* Clean single answer line */
.answer-line {
    border-bottom: 1px solid #000;
    height: 2em;
    margin: 2mm 0;
    position: relative;
    display: flex;
    align-items: center;
    min-height: 30px;
    box-sizing: border-box;
}

.answer-line.answer-shown {
    border-bottom: none;
    height: 2em;
    min-height: 30px;
    margin: 2mm 0;
    padding: 0;
    font-size: 14px;
    color: #ff4444;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    overflow: hidden;
}

.page-break {
    page-break-before: always;
}

.answer-key {
    padding: 15mm;
}

.answer-key h2 {
    text-align: center;
    font-size: 16pt;
    margin-bottom: 10mm;
}

.answer-list {
    display: flex;
    flex-direction: column;
    gap: 6mm;
}

.answer-item {
    font-size: 12pt;
    display: flex;
    gap: 4mm;
}

.answer-number {
    font-weight: bold;
}

.empty-state {
    text-align: center;
    color: #666;
    font-size: 12pt;
    margin-top: 20mm;
}

@media print {
    .worksheet-instructions {
        margin: 8mm 0 !important;
    }

    .sentence-list {
        padding: 0 !important;
    }

    .sentence-item {
        page-break-inside: avoid !important;
    }

    .spacing-compact .sentence-item {
        margin-bottom: 4mm !important;
    }

    .spacing-normal .sentence-item {
        margin-bottom: 8mm !important;
    }

    .spacing-wide .sentence-item {
        margin-bottom: 12mm !important;
    }

    .answer-key {
        padding: 0 !important;
    }

    .answer-key h2 {
        margin-bottom: 10mm !important;
    }

    .answer-line.answer-shown {
        border-bottom: none;
        height: 2em;
        min-height: 30px;
        margin: 2mm 0;
        padding: 0;
        font-size: 14px;
        color: #ff4444;
        overflow: hidden;
    }
}

/* Add specific button color overrides */
#random-generate-btn {
    background: #fff3b0;  /* Light yellow tone */
}

.answer-btn {
    background: #ffcdd2;  /* Light red/muted pink-red tone */
}

.answer-btn.active {
    background: var(--background-light);
    border: 1px solid #ff4444;
    color: #ff4444;
    box-shadow: none;
    transform: none;
}

/* Two-column layout */
.two-column-layout {
    width: 48%;
    float: left;
    padding-right: 2%;
    border-right: 1px solid #ccc;
}

.column-right {
    float: right;
    padding-right: 0;
    padding-left: 2%;
    border-right: none;
}

/* Clear floats */
.puzzle-preview::after {
    content: "";
    display: table;
    clear: both;
}

/* Adjust spacing between questions */
.sentence-item {
    margin-bottom: 8mm;
}

/* Clean single answer line */
.answer-line {
    border-bottom: 1px solid #000;
    height: 2em;
    margin: 2mm 0;
    position: relative;
    display: flex;
    align-items: center;
    min-height: 30px;
    box-sizing: border-box;
}

.answer-line:last-child {
    margin-bottom: 0;
}

.answer-line.answer-shown {
    border-bottom: none;
    height: 2em;
    min-height: 30px;
    margin: 2mm 0;
    padding: 0;
    font-size: 14px;
    color: #ff4444;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    overflow: hidden;
}

@media print {
    .answer-line.answer-shown {
        border-bottom: none;
        height: 2em;
        min-height: 30px;
        margin: 2mm 0;
        padding: 0;
        font-size: 14px;
        color: #ff4444;
        overflow: hidden;
    }
}

/* Two-column layout container */
.sentence-container {
    display: flex;
    justify-content: space-between;
    gap: 4%;
    width: 100%;
    margin-top: 10mm;
}

/* Column styles */
.sentence-list {
    padding: 0;
}

.sentence-container .sentence-list {
    flex: 0 0 48%;
    position: relative;
}

/* Add vertical line between columns */
.sentence-container .column-left {
    padding-right: 2%;
    border-right: 0.5mm solid #ccc;
}

.sentence-container .column-right {
    padding-left: 2%;
}

/* Ensure consistent spacing in both layouts */
.sentence-item {
    margin-bottom: 8mm;
    break-inside: avoid;
    width: 100%;
}

.sentence-line {
    display: flex;
    align-items: flex-start;
    gap: 2mm;
    margin-bottom: 4mm;
    width: 100%;
}

.scrambled-words {
    font-size: 12pt;
    line-height: 1.5;
    flex: 1;
}

/* Spacing Classes */
.spacing-compact .sentence-item {
    margin-bottom: 4mm;
}

.spacing-normal .sentence-item {
    margin-bottom: 8mm;
}

.spacing-wide .sentence-item {
    margin-bottom: 12mm;
}

@media print {
    .answer-line {
        border-bottom: 1px solid #000 !important;
        height: 2em !important;
        margin: 2mm 0 !important;
        position: relative !important;
        display: flex !important;
        align-items: center !important;
        min-height: 30px !important;
        box-sizing: border-box !important;
    }

    .answer-line:last-child {
        margin-bottom: 0 !important;
    }

    .answer-line.answer-shown {
        border-bottom: none !important;
        height: 2em !important;
        min-height: 30px !important;
        margin: 2mm 0 !important;
        padding: 0 !important;
        font-size: 14px !important;
        color: #ff4444 !important;
        overflow: hidden !important;
    }

    .sentence-container {
        display: flex !important;
        gap: 4% !important;
        width: 100% !important;
        margin-top: 10mm !important;
    }

    .sentence-container .sentence-list {
        flex: 0 0 48% !important;
        position: relative !important;
    }

    .sentence-container .column-left {
        padding-right: 2% !important;
        border-right: 0.5mm solid #ccc !important;
    }

    .sentence-container .column-right {
        padding-left: 2% !important;
    }
}

/* Extra print pages for unscramble auto page-split */
.us-page-break {
    display: none;
}

@media print {
    .us-page-break {
        display: block;
    }
}

.sentence-limit-warning {
    color: #ff4444;
    font-size: 14px;
    margin: 12px auto;
    padding: 4px 0;
    font-weight: 500;
    transition: opacity 0.3s ease;
    text-align: center;
    width: 100%;
}

.word-search-warning {
    color: #ff4444;
    font-size: 14px;
    margin: 12px auto;
    padding: 4px 0;
    font-weight: 500;
    transition: opacity 0.3s ease;
    text-align: center;
    width: 100%;
}

/* Sudoku multi-page print */
#sudoku-print-pages {
    display: none;
}

@media print {
    #sudoku-print-pages {
        display: block;
    }

    .sudoku-print-page {
        break-before: page;
        width: 210mm;
        height: 297mm;
        padding: 20mm;
        box-sizing: border-box;
        background: white;
        position: relative;
    }
}

/* Word count display */
#word-count-display {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.6;
}

.word-count-label {
    color: #666;
    margin-bottom: 4px;
}

.word-over-limit-msg {
    color: #e74c3c;
    font-weight: 500;
}

.word-count-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.word-ok {
    background: #eaf6ea;
    color: #2e7d32;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.word-over-limit {
    background: #fdecea;
    color: #e74c3c;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 13px;
    text-decoration: line-through;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.word-ok:hover {
    color: rgba(46,125,50,0.15);
    background: #d6f0d6;
}

.word-over-limit:hover {
    color: rgba(231,76,60,0.15);
    background: #fad7d4;
}

.word-ok .word-delete,
.word-over-limit .word-delete {
    display: none;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    line-height: 1;
    font-style: normal;
    color: #e74c3c;
    font-weight: 900;
    font-size: 18px;
    -webkit-text-stroke: 1px #e74c3c;
}

.word-ok:hover .word-delete,
.word-over-limit:hover .word-delete {
    display: inline;
} 
/* Related Tools Section */
.related-tools-section {
    margin-top: 3rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.related-tools-section h2 {
    color: var(--text-color);
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    text-align: center;
}

.related-tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.related-tool-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: white;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-align: center;
    overflow: hidden;
}

.related-tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.related-tool-card img {
    width: 72%;
    height: auto;
    display: block;
    margin: 0.8rem auto 0;
    border-radius: 6px;
}

.related-tool-card span {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.3;
    padding: 0.6rem 0.5rem 0.9rem;
}

@media (max-width: 768px) {
    .related-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media print {
    .related-tools-section {
        display: none !important;
    }
}