/* Blocklistly - Consolidated CSS Design System */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Brand Colors */
    --primary: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-hover: #2563eb;
    --primary-hover-dark: #1e40af;
    --primary-rgb: 59, 130, 246;
    
    /* Neutral Colors */
    --dark: #1e293b;
    --dark-light: #0f172a;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --light: #f8fafc;
    --white: #ffffff;
    
    /* Status Colors */
    --success: #10b981;
    --success-bg: #d1fae5;
    --success-text: #065f46;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --danger-text: #991b1b;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --warning-text: #92400e;
    --info: #3b82f6;
    --info-bg: #dbeafe;
    --info-text: #1e40af;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
    --gradient-primary-hover: linear-gradient(135deg, var(--primary-hover), var(--primary-hover-dark));
    --gradient-dark: linear-gradient(135deg, var(--dark), var(--dark-light));
    --gradient-auth-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 70px;
    --content-max-width: 1200px;
    --form-max-width: 400px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(59, 130, 246, 0.3);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* ===== BASE STYLES ===== */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* ===== LAYOUT COMPONENTS ===== */

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: var(--gradient-dark);
    color: var(--white);
    z-index: 1000;
    overflow-y: auto;
    transition: transform var(--transition-slow);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.sidebar-brand:hover {
    color: var(--white);
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
}

/* Navigation */
.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: #cbd5e1;
    text-decoration: none;
    transition: all var(--transition-normal);
    border-radius: 0;
    position: relative;
}

.nav-link:hover {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--white);
}

.nav-link.active {
    background: rgba(var(--primary-rgb), 0.2);
    color: var(--white);
    border-right: 3px solid var(--primary);
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: var(--font-size-lg);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-slow);
}

.auth-main-content {
    margin-left: 0;
}

.top-header {
    height: var(--header-height);
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-dark);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

/* ===== CARDS & COMPONENTS ===== */

.content-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    overflow: hidden;
}

/* Tab Components */
.nav-tabs-custom .nav-link {
    color: var(--text-muted);
    border: 1px solid transparent;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: var(--transition-fast);
}

.nav-tabs-custom .nav-link:hover {
    color: var(--text-dark);
    border-color: var(--border) var(--border) var(--border);
    background-color: var(--light);
}

.nav-tabs-custom .nav-link.active {
    color: var(--text-dark);
    background-color: var(--white);
    border-color: var(--border) var(--border) var(--white);
    font-weight: 600;
}

.tab-content {
    min-height: 400px;
}

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

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

/* ===== BUTTONS ===== */

.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.btn-primary:hover {
    background: var(--gradient-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.btn-lg {
    padding: var(--spacing-sm) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* ===== FORMS ===== */

.form-control {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-rgb), 0.1);
}

/* ===== ALERTS ===== */

.alert {
    border-radius: var(--radius-md);
    border: none;
    font-weight: 500;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
}

.alert-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.alert-info {
    background: var(--info-bg);
    color: var(--info-text);
}

/* ===== UTILITIES ===== */

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
}

.loading {
    opacity: 0.6;
    pointer-events: none;
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

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

/* ===== FOOTER ===== */

.footer {
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: var(--spacing-lg) var(--spacing-xl);
    margin-top: auto;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ===== CODE & SYNTAX HIGHLIGHTING ===== */

pre {
    background-color: var(--light);
    border: 1px solid #e9ecef;
    border-radius: var(--radius-sm);
    padding: var(--spacing-lg);
    font-size: 0.9rem;
}

code {
    background-color: var(--light);
    padding: 2px var(--spacing-sm);
    border-radius: 4px;
    font-size: 0.9em;
}

.language-regex {
    color: #d63384;
}

.language-python {
    color: var(--primary);
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-toggle {
        display: block !important;
    }
    
    .display-4 {
        font-size: var(--font-size-3xl);
    }
    
    .card-body {
        padding: var(--spacing-md);
    }
}

/* ===== COMMON COMPONENTS ===== */

/* Step Number Circles */
.step-circle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

.step-circle-primary {
    background: var(--primary);
}

.step-circle-success {
    background: var(--success);
}

.step-circle-warning {
    background: var(--warning);
}

.step-circle-info {
    background: var(--info);
}

/* Purple Button Variant */
.btn-purple {
    border-color: #6f42c1;
    color: #6f42c1;
}

.btn-purple:hover {
    background-color: #6f42c1;
    border-color: #6f42c1;
    color: white;
}

/* Scrollable Containers */
.scrollable-container {
    max-height: 150px;
    overflow-y: auto;
}

.scrollable-container-lg {
    max-height: 200px;
    overflow-y: auto;
}

.scrollable-container-xl {
    max-height: 300px;
    overflow-y: auto;
}

/* Gradient Backgrounds */
.gradient-primary {
    background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
}

.gradient-auth {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Inline Form Elements */
.form-inline {
    display: inline;
}

/* Trust Indicators Gradient */
.trust-indicators-gradient {
    background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
}

/* ===== LEGACY COMPATIBILITY ===== */

/* Keep existing class names for backward compatibility */
.navbar-brand {
    font-weight: 700;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    border-bottom: 1px solid rgba(0,0,0,0.125);
}

.badge {
    font-size: var(--font-size-xs);
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

.btn-success {
    transition: all var(--transition-slow);
}

#test-result-* {
    min-height: 50px;
}

/* ===== GLOBAL AJAX SPINNER ===== */
#global-ajax-spinner {
    animation: fadeIn 0.2s ease-in;
}

#global-ajax-spinner .spinner-border {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== AUTH PAGES ===== */
/* Import auth styles if needed */
@import url('auth.css');