/* Glucore Shared Theme - Light/Dark Mode Support with Glass Morphism */

:root {
    /* Light Theme (default) */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-sidebar: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    --sidebar-text: #0f172a;
    --sidebar-text-muted: #64748b;
    --sidebar-border: rgba(0, 0, 0, 0.08);
    --sidebar-hover: rgba(99, 102, 241, 0.08);
    --sidebar-active: rgba(99, 102, 241, 0.15);
    
    /* Glass Morphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-bg-strong: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-border-subtle: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    --glass-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    --glass-blur: blur(20px) saturate(180%);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    --border-color: rgba(226, 232, 240, 0.8);
    --border-light: rgba(0, 0, 0, 0.04);
    
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: rgba(99, 102, 241, 0.1);
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --info-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    
    /* Glucose Range Colors */
    --glucose-low: #ef4444;
    --glucose-in-range: #10b981;
    --glucose-high: #f59e0b;
    --glucose-very-high: #f97316;
    --glucose-target-low: #22c55e;
    --glucose-target-high: #84cc16;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    
    color-scheme: light;
}

[data-theme="dark"] {
    --bg-primary: #0a0f1a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-sidebar: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    --sidebar-text: #f8fafc;
    --sidebar-text-muted: #94a3b8;
    --sidebar-border: rgba(255, 255, 255, 0.08);
    --sidebar-hover: rgba(255, 255, 255, 0.05);
    --sidebar-active: rgba(99, 102, 241, 0.3);
    
    /* Glass Morphism - Dark */
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-bg-strong: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-subtle: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2);
    --glass-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --text-inverse: #0f172a;
    
    --border-color: rgba(51, 65, 85, 0.8);
    --border-light: rgba(255, 255, 255, 0.04);
    
    --accent-light: rgba(99, 102, 241, 0.2);
    --success-bg: rgba(16, 185, 129, 0.15);
    --warning-bg: rgba(245, 158, 11, 0.15);
    --danger-bg: rgba(239, 68, 68, 0.15);
    --info-bg: rgba(59, 130, 246, 0.15);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    
    color-scheme: dark;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2rem; letter-spacing: -0.025em; }
h2 { font-size: 1.5rem; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }

p { color: var(--text-secondary); }

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-hover);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--accent);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* Cards */
.card {
    background: var(--glass-bg-strong);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: var(--transition);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--glass-border), transparent 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.card:hover {
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-2px);
}

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.card-solid {
    background: var(--bg-card);
    backdrop-filter: none;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-tertiary);
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

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

.form-help {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-error {
    font-size: 12px;
    color: var(--danger);
    margin-top: 4px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

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

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

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

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

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-warning {
    background: var(--warning-bg);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.alert-danger {
    background: var(--danger-bg);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.alert-info {
    background: var(--info-bg);
    border: 1px solid var(--info);
    color: var(--info);
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--border-color);
}

.theme-toggle-icon {
    font-size: 18px;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    background: var(--bg-sidebar);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: var(--transition-slow);
    border-right: 1px solid var(--sidebar-border);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.08);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.sidebar-logo h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--sidebar-text);
}

.sidebar-logo span {
    font-size: 12px;
    color: var(--sidebar-text-muted);
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--sidebar-text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--sidebar-text-muted);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    margin-bottom: 4px;
    cursor: pointer;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: var(--sidebar-text);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    color: white;
}

.nav-item-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--sidebar-border);
}

/* Main Content */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
    padding: 32px 40px;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(at 20% 20%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
        radial-gradient(at 80% 80%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
}

[data-theme="dark"] .main-content {
    background-image: 
        radial-gradient(at 20% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
        radial-gradient(at 80% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
}

/* Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 24px;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-5 { grid-column: span 5; }
.col-span-6 { grid-column: span 6; }
.col-span-7 { grid-column: span 7; }
.col-span-8 { grid-column: span 8; }
.col-span-12 { grid-column: span 12; }

/* Stat Cards */
.stat-card {
    background: var(--glass-bg-strong);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: var(--accent-gradient);
    opacity: 0.05;
    border-radius: 50%;
    transform: translate(30%, -30%);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow-hover);
}

.stat-card:hover::before {
    opacity: 0.1;
    transform: translate(20%, -20%) scale(1.2);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 600;
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}

/* Glucose Display */
.glucose-card {
    background: var(--accent-gradient);
    color: white;
    border-radius: var(--radius-xl);
    padding: 36px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.glucose-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 28px 50px rgba(99, 102, 241, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.glucose-card.in-range {
    background: var(--success-gradient);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.glucose-card.in-range:hover {
    box-shadow: 0 28px 50px rgba(16, 185, 129, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.glucose-card.high {
    background: var(--warning-gradient);
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.glucose-card.high:hover {
    box-shadow: 0 28px 50px rgba(245, 158, 11, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.glucose-card.low {
    background: var(--danger-gradient);
    box-shadow: 0 20px 40px rgba(239, 68, 68, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.glucose-card.low:hover {
    box-shadow: 0 28px 50px rgba(239, 68, 68, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.glucose-card::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -20%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 4s ease-in-out infinite;
}

.glucose-card::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.glucose-value {
    font-size: 80px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -4px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.glucose-unit {
    font-size: 20px;
    font-weight: 600;
    opacity: 0.9;
    margin-left: 4px;
}

.glucose-trend {
    font-size: 40px;
    margin-left: 12px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.glucose-status {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 18px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Tables */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.table th {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-tertiary);
}

.table tr:hover {
    background: var(--bg-tertiary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 40px;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.empty-text {
    color: var(--text-muted);
    margin-bottom: 24px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive */
@media (max-width: 1200px) {
    .col-span-5, .col-span-7 { grid-column: span 6; }
    .col-span-4, .col-span-8 { grid-column: span 12; }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .col-span-5, .col-span-6, .col-span-7 { grid-column: span 12; }
}

@media (max-width: 768px) {
    .main-content {
        padding: 16px;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .grid-cols-2, .grid-cols-3, .grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .glucose-value {
        font-size: 56px;
    }
}

@media (max-width: 480px) {
    .header-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    
    .btn {
        width: 100%;
    }
}

/* Utility Classes */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

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

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

.slide-in {
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow-hover);
    pointer-events: auto;
    animation: toastSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 300px;
    max-width: 450px;
}

.toast.toast-exit {
    animation: toastSlideOut 0.3s ease forwards;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.toast-message {
    font-size: 13px;
    color: var(--text-secondary);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: var(--transition);
    font-size: 16px;
}

.toast-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.toast.toast-success {
    border-left: 4px solid var(--success);
}

.toast.toast-error {
    border-left: 4px solid var(--danger);
}

.toast.toast-info {
    border-left: 4px solid var(--info);
}

.toast.toast-warning {
    border-left: 4px solid var(--warning);
}

@keyframes toastSlideIn {
    from { 
        opacity: 0; 
        transform: translateX(100px) scale(0.9); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0) scale(1); 
    }
}

@keyframes toastSlideOut {
    to { 
        opacity: 0; 
        transform: translateX(100px) scale(0.9); 
    }
}

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow: auto;
    transform: scale(0.95) translateY(20px);
    transition: var(--transition-spring);
}

.modal-backdrop.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--danger-bg);
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 0 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Health Status Cards */
.health-status-banner {
    padding: 32px;
    border-radius: var(--radius-xl);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.health-status-banner.status-up {
    background: var(--success-gradient);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.3);
}

.health-status-banner.status-down {
    background: var(--danger-gradient);
    box-shadow: 0 20px 40px rgba(239, 68, 68, 0.3);
}

.health-status-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.health-status-title {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 4px;
}

.health-status-subtitle {
    font-size: 14px;
    opacity: 0.9;
}

.health-check-card {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.health-check-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.health-check-icon.status-up {
    background: var(--success-bg);
}

.health-check-icon.status-down {
    background: var(--danger-bg);
}

.health-check-info {
    flex: 1;
}

.health-check-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.health-check-detail {
    font-size: 13px;
    color: var(--text-muted);
}

.health-check-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.health-pulse {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    position: relative;
}

.health-pulse.status-up {
    background: var(--success);
}

.health-pulse.status-down {
    background: var(--danger);
}

.health-pulse::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid currentColor;
    opacity: 0;
    animation: pulse-ring 2s ease-out infinite;
}

.health-pulse.status-up::before {
    border-color: var(--success);
}

.health-pulse.status-down::before {
    border-color: var(--danger);
}

@keyframes pulse-ring {
    0% { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(2); opacity: 0; }
}

/* Settings Panel */
.settings-panel {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
    padding: 16px;
    margin-top: 12px;
}

.settings-panel .form-input,
.settings-panel .form-select {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
    color: white;
}

.settings-panel .form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.settings-panel .form-input:focus,
.settings-panel .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

.settings-panel .form-label {
    color: rgba(255, 255, 255, 0.7);
}

.settings-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 8px;
}

.settings-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.settings-toggle-icon {
    transition: var(--transition);
}

.settings-toggle.expanded .settings-toggle-icon {
    transform: rotate(180deg);
}

/* Flex wrap */
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }