/* 
 * Bingo Creator - CSS Styles
 * Built with inspiration from the homepage design
 */

/* CSS Variables */
:root {
    --color-bg: #0f0f1a;
    --color-surface: #1a1a2e;
    --color-surface-hover: #252542;
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-secondary: #64748b;
    --color-success: #22c55e;
    --color-success-hover: #16a34a;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-border: #334155;
    --color-error: #ef4444;
    
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.app-header {
    padding: 2rem 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.app-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Main Content */
.app-main {
    padding: 1rem 0 3rem;
}

/* Controls */
.controls {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.form-input,
.form-select,
.form-textarea {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-textarea {
    min-height: 200px;
    resize: vertical;
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    color: var(--color-text);
}

.checkbox-label input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    accent-color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-surface-hover);
}

.btn-success {
    background-color: var(--color-success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-hover);
    transform: translateY(-1px);
}

.btn-back {
    background-color: transparent;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
}

.btn-back:hover {
    color: var(--color-text);
}

/* Grid Preview */
.grid-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    background-color: var(--color-surface);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    color: var(--color-text-muted);
}

.bingo-grid {
    display: grid;
    gap: 2px;
    background-color: var(--color-border);
    padding: 2px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.grid-row {
    display: contents;
}

.grid-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    padding: 0.75rem;
    background-color: var(--color-surface);
    text-align: center;
    aspect-ratio: 1;
    position: relative;
}

.cell-text {
    font-size: 0.875rem;
    font-weight: 500;
    word-break: break-word;
    overflow-wrap: break-word;
}

.free-space {
    background-color: var(--color-primary);
    color: white;
}

.free-space .cell-text {
    font-weight: 700;
    font-size: 1rem;
}

/* Toolbar */
.toolbar {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

/* Footer */
.app-footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Suggestions Page */
.suggestions-main {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.suggestions-placeholder {
    text-align: center;
    padding: 3rem;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.suggestions-placeholder h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.suggestions-placeholder p {
    color: var(--color-text-muted);
    max-width: 400px;
}

/* Error Container */
.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    text-align: center;
}

.error-container h1 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-error);
}

.error-details {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
}

/* Responsive */
@media (max-width: 768px) {
    .app-title {
        font-size: 2rem;
    }
    
    .controls {
        padding: 1rem;
    }
    
    .grid-cell {
        min-height: 60px;
        padding: 0.5rem;
    }
    
    .cell-text {
        font-size: 0.75rem;
    }
    
    .toolbar {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .app-header {
        padding: 1.5rem 0;
    }
    
    .app-title {
        font-size: 1.75rem;
    }
}

/* Print styles for bingo cards */
@media print {
    body {
        background-color: white;
        color: black;
    }
    
    .controls,
    .toolbar,
    .app-header,
    .app-footer {
        display: none !important;
    }
    
    .bingo-grid {
        border: 2px solid black;
    }
    
    .grid-cell {
        background-color: white;
        color: black;
    }
    
    .free-space {
        background-color: #f0f0f0;
        color: black;
    }
}