/* Pattern Matching Puzzle Styles */

.patterns-page {
    min-height: calc(100vh - 200px);
    background: linear-gradient(135deg, #EDE9FE 0%, #CCFBF1 50%, #FFEDD5 100%);
}

.page-header {
    padding: 3rem 0 2rem;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
}

.patterns-container {
    padding: 2rem 0 4rem;
}

.patterns-grid-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
    align-items: start;
}

/* Control Panel */
.control-panel {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 100px;
}

.control-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.control-section:last-of-type {
    border-bottom: none;
    margin-bottom: 1.5rem;
}

.control-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.select-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s;
    background: white;
}

.select-input:focus {
    outline: none;
    border-color: var(--primary);
}

.select-input[multiple] {
    height: auto;
}

.help-text {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.instructions-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    resize: vertical;
    transition: border-color 0.3s;
}

.instructions-input:focus {
    outline: none;
    border-color: var(--primary);
}

.input-group {
    flex: 1;
}

.input-group input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 0.5rem;
    cursor: pointer;
}

.control-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.control-actions button {
    width: 100%;
    text-align: center;
}

.share-message {
    margin-top: 1rem;
    padding: 0.75rem;
    background: #10B981;
    color: white;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    animation: fadeIn 0.3s;
}

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

/* Puzzle Display */
.puzzle-display {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    min-height: 600px;
}

.puzzle-content {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.empty-state p {
    margin-bottom: 1rem;
}

.example-words {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #F7FAFC;
    border-radius: 10px;
    font-size: 0.875rem;
}

.example-words strong {
    color: var(--text);
}

/* Puzzle Instructions */
.puzzle-instructions {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 2rem;
    padding: 1rem 1.5rem;
    background: #EFF6FF;
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    line-height: 1.6;
}

/* Pattern Display */
.patterns-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

.pattern-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.pattern-item:last-child {
    border-bottom: none;
}

.pattern-number {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
    min-width: 28px;
    flex-shrink: 0;
}

.pattern-sequence {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 10px;
}

.pattern-element {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 28px;
    font-weight: 700;
    border: 2px solid #ddd;
    background: white;
    transition: all 0.3s;
}

.pattern-element.blank {
    background: repeating-linear-gradient(
        45deg,
        #f0f0f0,
        #f0f0f0 6px,
        #ffffff 6px,
        #ffffff 12px
    );
    border: 2px dashed #999;
    font-size: 20px;
    color: #999;
}

/* Color patterns */
.pattern-element.color-red { background-color: #ff6b6b; color: transparent; border-color: #ff6b6b; }
.pattern-element.color-blue { background-color: #4ecdc4; color: transparent; border-color: #4ecdc4; }
.pattern-element.color-green { background-color: #95e1d3; color: transparent; border-color: #95e1d3; }
.pattern-element.color-yellow { background-color: #ffe66d; color: transparent; border-color: #ffe66d; }
.pattern-element.color-orange { background-color: #ffa07a; color: transparent; border-color: #ffa07a; }
.pattern-element.color-purple { background-color: #9b59b6; color: transparent; border-color: #9b59b6; }
.pattern-element.color-pink { background-color: #ff69b4; color: transparent; border-color: #ff69b4; }

/* Shape patterns */
.pattern-element.shape {
    background: white;
    border: 2px solid #333;
    font-size: 0;
    position: relative;
}

.pattern-element.shape-circle {
    border-radius: 50%;
}

.pattern-element.shape-square {
    border-radius: 4px;
}

.pattern-element.shape-triangle {
    border: none;
    background: transparent;
}

.pattern-element.shape-triangle::before {
    content: '';
    width: 0;
    height: 0;
    border-left: 22px solid transparent;
    border-right: 22px solid transparent;
    border-bottom: 38px solid #333;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -40%);
}

.pattern-element.shape-star {
    background: transparent;
    border: none;
    font-size: 36px;
    color: #333;
}

.pattern-element.shape-diamond {
    transform: rotate(45deg);
}

/* Number patterns */
.pattern-element.number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 28px;
    border-color: #667eea;
}

/* Fill patterns */
.pattern-element.fill {
    background: white;
    border: 3px solid #333;
    position: relative;
    overflow: hidden;
}

.pattern-element.fill-horizontal {
    background: repeating-linear-gradient(
        0deg,
        #333,
        #333 2px,
        white 2px,
        white 6px
    );
}

.pattern-element.fill-vertical {
    background: repeating-linear-gradient(
        90deg,
        #333,
        #333 2px,
        white 2px,
        white 6px
    );
}

.pattern-element.fill-diagonal-right {
    background: repeating-linear-gradient(
        45deg,
        #333,
        #333 2px,
        white 2px,
        white 6px
    );
}

.pattern-element.fill-diagonal-left {
    background: repeating-linear-gradient(
        -45deg,
        #333,
        #333 2px,
        white 2px,
        white 6px
    );
}

.pattern-element.fill-grid {
    background: 
        repeating-linear-gradient(0deg, #333 0, #333 2px, transparent 2px, transparent 6px),
        repeating-linear-gradient(90deg, #333 0, #333 2px, transparent 2px, transparent 6px);
    background-color: white;
}

.pattern-element.fill-dots {
    background-image: radial-gradient(circle, #333 2px, transparent 2px);
    background-size: 8px 8px;
    background-color: white;
}

.pattern-element.fill-solid {
    background: #333;
    border-color: #333;
}

.print-only {
    display: none;
}

/* Print Styles */
@media print {
    @page {
        size: A4;
        margin: 1cm;
    }

    body {
        background: white;
    }

    .no-print {
        display: none !important;
    }
    
    /* Show print-only elements */
    .print-only {
        display: block !important;
    }
    
    /* Homework header styles for print */
    .homework-header {
        display: flex !important;
        justify-content: space-between;
        align-items: flex-start;
        padding: 1rem;
        margin-bottom: 1.5rem;
        border: 2px solid #333;
        border-radius: 8px;
        background: #f8f9fa;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .homework-branding h2 {
        margin: 0 0 0.25rem 0;
        font-size: 1.25rem;
        color: #1a1a1a;
    }
    
    .homework-source {
        margin: 0;
        font-size: 0.75rem;
        color: #666;
    }
    
    .homework-fields {
        display: flex;
        gap: 2rem;
        align-items: center;
    }
    
    .homework-field {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .homework-field label {
        font-weight: 600;
        font-size: 0.9rem;
        color: #333;
        white-space: nowrap;
    }
    
    .homework-field .field-line {
        display: inline-block;
        width: 150px;
        border-bottom: 1px solid #333;
        height: 1px;
    }

    .patterns-page {
        background: white;
    }

    .page-header {
        padding: 0.5rem 0;
    }

    .page-title {
        font-size: 1.25rem;
        color: #000;
        background: none;
        -webkit-text-fill-color: initial;
        margin-bottom: 0.25rem;
    }

    .page-subtitle {
        font-size: 0.75rem;
        color: #666;
    }

    .patterns-container {
        padding: 0;
    }

    .puzzle-display {
        box-shadow: none;
        padding: 0.5rem;
    }

    .puzzle-instructions {
        font-size: 0.8rem;
        background: none;
        border: none;
        padding: 0.25rem 0;
        margin-bottom: 0.75rem;
    }

    .patterns-grid {
        gap: 0.5rem;
    }

    .pattern-item {
        page-break-inside: avoid;
        border-bottom: 1px solid #ddd;
        padding: 0.4rem 0;
        gap: 0.5rem;
    }

    .pattern-item:last-child {
        border-bottom: none;
    }

    .pattern-number {
        font-size: 0.9rem;
        color: #000;
        min-width: 22px;
    }

    .pattern-sequence {
        gap: 6px;
    }

    .pattern-element {
        width: 35px;
        height: 35px;
        font-size: 20px;
        border-width: 2px !important;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }

    .pattern-element.blank {
        background: white;
        border: 2px dashed #000 !important;
        font-size: 14px;
    }

    .pattern-element.number {
        font-size: 20px;
    }

    .pattern-element.shape-triangle::before {
        border-left-width: 15px;
        border-right-width: 15px;
        border-bottom-width: 26px;
        border-bottom-color: #000 !important;
    }

    .pattern-element.shape-star {
        font-size: 24px;
        color: #000 !important;
    }

    .puzzle-content::before {
        content: "puzzlegenerator.com";
        display: block;
        text-align: center;
        font-size: 8px;
        color: #999;
        margin-bottom: 0.5rem;
        padding-bottom: 0.25rem;
        border-bottom: 1px solid #eee;
    }

    /* Ensure colors print */
    .pattern-element.color-red,
    .pattern-element.color-blue,
    .pattern-element.color-green,
    .pattern-element.color-yellow,
    .pattern-element.color-orange,
    .pattern-element.color-purple,
    .pattern-element.color-pink {
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }

    /* Ensure fill patterns print */
    .pattern-element.fill-horizontal,
    .pattern-element.fill-vertical,
    .pattern-element.fill-diagonal-right,
    .pattern-element.fill-diagonal-left,
    .pattern-element.fill-grid,
    .pattern-element.fill-dots,
    .pattern-element.fill-solid {
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }
}

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

    .control-panel {
        position: static;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }

    .puzzle-display {
        padding: 1.5rem;
    }

    .pattern-item {
        gap: 0.5rem;
    }

    .pattern-number {
        font-size: 1rem;
        min-width: 25px;
    }

    .pattern-element {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .pattern-element.shape-star {
        font-size: 32px;
    }

    .pattern-element.shape-triangle::before {
        border-left-width: 22px;
        border-right-width: 22px;
        border-bottom-width: 38px;
    }
}