/* Simple Component Library */

/* ========== Variables ========== */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #64748b;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --light: #f8fafc;
    --dark: #0f172a;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 150ms ease;
    text-decoration: none;
}

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

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #475569;
}

.btn-outline {
    background-color: transparent;
    border-color: currentColor;
    color: var(--dark);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--light);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* ========== Cards ========== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid #e2e8f0;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid #e2e8f0;
    background-color: var(--light);
}

/* ========== Forms ========== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--dark);
    background-color: white;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-md);
    transition: border-color 150ms ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--secondary);
}

/* ========== Alerts ========== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--primary);
}

.alert-success {
    background-color: #dcfce7;
    color: #166534;
    border-left: 4px solid var(--success);
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

/* ========== Badges ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-md);
}

.badge-primary {
    background-color: #dbeafe;
    color: #1e40af;
}

.badge-success {
    background-color: #dcfce7;
    color: #166534;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

/* ========== Grid System ========== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(-1 * var(--spacing-md));
}

.col {
    flex: 1;
    padding: 0 var(--spacing-md);
}

.col-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
    padding: 0 var(--spacing-md);
}

.col-3 {
    flex: 0 0 25%;
    max-width: 25%;
    padding: 0 var(--spacing-md);
}

.col-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 var(--spacing-md);
}

.col-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0 var(--spacing-md);
}

.col-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
    padding: 0 var(--spacing-md);
}

.col-12 {
    flex: 0 0 100%;
    max-width: 100%;
    padding: 0 var(--spacing-md);
}

/* ========== Utilities ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }