/* ========================================
   MATERIAL 3 EXPRESSIVE DESIGN SYSTEM
   Dark Emerald Theme
   ======================================== */

:root {
    /* Material 3 Primary - Emerald Palette */
    --md-primary: #6BFFB8;
    --md-primary-container: #005234;
    --md-on-primary: #003822;
    --md-on-primary-container: #89FFD0;
    
    /* Secondary - Complementary Teal */
    --md-secondary: #83D9C9;
    --md-secondary-container: #003B32;
    --md-on-secondary: #003830;
    --md-on-secondary-container: #9FF5E5;
    
    /* Tertiary - Accent Gold */
    --md-tertiary: #FFDB70;
    --md-tertiary-container: #4C3D00;
    --md-on-tertiary: #3E3100;
    --md-on-tertiary-container: #FFF0C6;
    
    /* Error States */
    --md-error: #FFB4AB;
    --md-error-container: #93000A;
    --md-on-error: #690005;
    --md-on-error-container: #FFDAD6;
    
    /* Surface Levels - Dark Emerald Theme */
    --md-surface-dim: #080F0B;
    --md-surface: #0A1612;
    --md-surface-bright: #12231C;
    --md-surface-container-lowest: #050907;
    --md-surface-container-low: #0C1A14;
    --md-surface-container: #101F18;
    --md-surface-container-high: #1A2B23;
    --md-surface-container-highest: #243A30;
    
    /* On Surface */
    --md-on-surface: #E0F2EC;
    --md-on-surface-variant: #B8CCC3;
    --md-outline: #82978E;
    --md-outline-variant: #3D4C45;
    
    /* Inverse */
    --md-inverse-surface: #E0F2EC;
    --md-inverse-on-surface: #1A2B23;
    --md-inverse-primary: #006B44;
    
    /* Expressive Accent Colors */
    --md-success: #6BFFB8;
    --md-warning: #FFDB70;
    --md-info: #83D9C9;
    --md-danger: #FFB4AB;
    
    /* Glassmorphism for Expressive Design */
    --glass-bg: rgba(16, 31, 24, 0.85);
    --glass-border: rgba(107, 255, 184, 0.15);
    --glass-highlight: rgba(107, 255, 184, 0.08);
    
    /* Shadows - Material 3 Elevation Tokens */
    --md-elevation-0: none;
    --md-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --md-elevation-2: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
    --md-elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);
    --md-elevation-4: 0 6px 10px 4px rgba(0, 0, 0, 0.15), 0 2px 3px rgba(0, 0, 0, 0.3);
    --md-elevation-5: 0 8px 12px 6px rgba(0, 0, 0, 0.15), 0 4px 4px rgba(0, 0, 0, 0.3);
    
    /* Glow Effects for Expressive Design */
    --glow-primary: 0 0 20px rgba(107, 255, 184, 0.3), 0 0 40px rgba(107, 255, 184, 0.15);
    --glow-secondary: 0 0 20px rgba(131, 217, 201, 0.3), 0 0 40px rgba(131, 217, 201, 0.15);
    --glow-tertiary: 0 0 20px rgba(255, 219, 112, 0.3), 0 0 40px rgba(255, 219, 112, 0.15);
    
    /* Material 3 Shape Tokens */
    --md-shape-corner-none: 0px;
    --md-shape-corner-extra-small: 4px;
    --md-shape-corner-small: 8px;
    --md-shape-corner-medium: 12px;
    --md-shape-corner-large: 16px;
    --md-shape-corner-extra-large: 28px;
    --md-shape-corner-full: 9999px;
    
    /* Material 3 Motion Tokens */
    --md-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
    --md-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
    --md-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
    --md-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
    --md-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
    --md-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
    
    --md-motion-duration-short1: 50ms;
    --md-motion-duration-short2: 100ms;
    --md-motion-duration-short3: 150ms;
    --md-motion-duration-short4: 200ms;
    --md-motion-duration-medium1: 250ms;
    --md-motion-duration-medium2: 300ms;
    --md-motion-duration-medium3: 350ms;
    --md-motion-duration-medium4: 400ms;
    --md-motion-duration-long1: 450ms;
    --md-motion-duration-long2: 500ms;
    
    /* Typography Scale - Material 3 */
    --md-typescale-display-large: 57px;
    --md-typescale-display-medium: 45px;
    --md-typescale-display-small: 36px;
    --md-typescale-headline-large: 32px;
    --md-typescale-headline-medium: 28px;
    --md-typescale-headline-small: 24px;
    --md-typescale-title-large: 22px;
    --md-typescale-title-medium: 16px;
    --md-typescale-title-small: 14px;
    --md-typescale-body-large: 16px;
    --md-typescale-body-medium: 14px;
    --md-typescale-body-small: 12px;
    --md-typescale-label-large: 14px;
    --md-typescale-label-medium: 12px;
    --md-typescale-label-small: 11px;
    
    /* Layout */
    --sidebar-width: 300px;
    --topbar-height: 72px;
    
    /* Legacy variables for compatibility */
    --primary-color: var(--md-primary);
    --primary-dark: var(--md-primary-container);
    --primary-light: var(--md-on-primary-container);
    --secondary-color: var(--md-success);
    --danger-color: var(--md-error);
    --warning-color: var(--md-warning);
    --info-color: var(--md-info);
    --bg-primary: var(--md-surface);
    --bg-secondary: var(--md-surface-container);
    --bg-tertiary: var(--md-surface-container-high);
    --bg-card: var(--md-surface-container);
    --bg-glass: var(--glass-highlight);
    --text-primary: var(--md-on-surface);
    --text-secondary: var(--md-on-surface-variant);
    --text-muted: var(--md-outline);
    --border-color: var(--md-outline-variant);
    --border-glass: var(--glass-border);
    --shadow: var(--md-elevation-1);
    --shadow-lg: var(--md-elevation-3);
    --shadow-glass: var(--md-elevation-2);
    --transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized);
}

/* ========================================
   BASE STYLES - Material 3
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Google Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--md-surface-dim);
    background-image: 
        radial-gradient(ellipse at 0% 0%, rgba(107, 255, 184, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 100%, rgba(131, 217, 201, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 82, 52, 0.1) 0%, transparent 70%);
    background-attachment: fixed;
    color: var(--md-on-surface);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.25px;
}

/* ========================================
   LOADING SCREEN - Material 3 Expressive
   ======================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--md-surface-dim);
    background-image: 
        radial-gradient(ellipse at 30% 30%, rgba(107, 255, 184, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(131, 217, 201, 0.08) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loader {
    width: 64px;
    height: 64px;
    border: 4px solid var(--md-outline-variant);
    border-top-color: var(--md-primary);
    border-radius: var(--md-shape-corner-full);
    animation: spin 0.8s var(--md-motion-easing-standard) infinite;
    box-shadow: var(--glow-primary);
}

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

.loading-screen p {
    margin-top: 24px;
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-large);
    font-weight: 500;
    letter-spacing: 0.15px;
}

/* ========================================
   LOGIN SCREEN - Material 3 Expressive
   ======================================== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--md-surface-dim);
    background-image: 
        radial-gradient(ellipse at 20% 0%, rgba(107, 255, 184, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(131, 217, 201, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 107, 68, 0.08) 0%, transparent 60%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9998;
    padding: 24px;
}

.login-container {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(150%);
    -webkit-backdrop-filter: blur(24px) saturate(150%);
    padding: 48px 40px;
    border-radius: var(--md-shape-corner-extra-large);
    border: 1px solid var(--glass-border);
    box-shadow: var(--md-elevation-3), var(--glow-primary);
    text-align: center;
    max-width: 440px;
    width: 100%;
    animation: materialFadeInUp var(--md-motion-duration-long2) var(--md-motion-easing-emphasized-decelerate);
}

.login-header i {
    font-size: 72px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    filter: drop-shadow(0 4px 16px rgba(107, 255, 184, 0.3));
}

.login-header h1 {
    font-size: var(--md-typescale-headline-large);
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.login-header p {
    color: var(--md-on-surface-variant);
    margin-bottom: 32px;
    font-size: var(--md-typescale-body-large);
    letter-spacing: 0.5px;
}

.login-btn {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border: none;
    padding: 18px 40px;
    font-size: var(--md-typescale-label-large);
    font-weight: 600;
    border-radius: var(--md-shape-corner-full);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
    text-transform: none;
    letter-spacing: 0.1px;
    box-shadow: var(--md-elevation-2);
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.1) 100%);
    opacity: 0;
    transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.login-btn:hover {
    box-shadow: var(--md-elevation-4), var(--glow-primary);
    transform: translateY(-2px);
}

.login-btn:hover::before {
    opacity: 1;
}

.login-btn:active {
    transform: translateY(0);
    box-shadow: var(--md-elevation-1);
}

.login-info {
    margin-top: 24px;
    color: var(--md-outline);
    font-size: var(--md-typescale-body-small);
    letter-spacing: 0.4px;
}

@keyframes materialFadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ========================================
   DASHBOARD LAYOUT - Material 3
   ======================================== */
.dashboard {
    display: flex;
    min-height: 100vh;
    position: relative;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    transition: opacity var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* ========================================
   NAVIGATION RAIL / DRAWER - Material 3
   ======================================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--md-surface-container);
    border-right: 1px solid var(--md-outline-variant);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 999;
    transition: transform var(--md-motion-duration-medium4) var(--md-motion-easing-emphasized);
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--md-outline-variant);
    position: sticky;
    top: 0;
    background: var(--md-surface-container);
    z-index: 10;
}

.sidebar-logo {
    box-shadow: var(--md-elevation-2), 0 0 16px rgba(107, 255, 184, 0.25);
    border: 2px solid var(--md-primary) !important;
}

.sidebar-header h2 {
    font-size: var(--md-typescale-headline-small);
    font-weight: 500;
    letter-spacing: 0;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    color: var(--md-on-surface-variant);
    text-decoration: none;
    transition: var(--transition);
    border-radius: var(--md-shape-corner-extra-large);
    margin-bottom: 4px;
    position: relative;
    font-size: var(--md-typescale-label-large);
    font-weight: 500;
    letter-spacing: 0.1px;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
    border-radius: inherit;
}

.nav-item:hover {
    color: var(--md-on-surface);
}

.nav-item:hover::before {
    opacity: 0.08;
}

.nav-item.active {
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
    box-shadow: var(--md-elevation-1);
}

.nav-item.active::before {
    opacity: 0;
}

.nav-item.active i {
    color: var(--md-primary);
}

.nav-item i {
    font-size: 22px;
    width: 24px;
    transition: color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--md-outline-variant);
    position: sticky;
    bottom: 0;
    background: var(--md-surface-container);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding: 12px;
    background: var(--md-surface-container-high);
    border-radius: var(--md-shape-corner-large);
}

.user-info img {
    width: 48px;
    height: 48px;
    border-radius: var(--md-shape-corner-full);
    border: 2px solid var(--md-primary);
    object-fit: cover;
    box-shadow: 0 0 12px rgba(107, 255, 184, 0.2);
}

.user-details {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.user-details span:first-child {
    font-weight: 500;
    font-size: var(--md-typescale-body-medium);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--md-on-surface);
}

.user-role {
    font-size: var(--md-typescale-label-small);
    color: var(--md-primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.logout-btn {
    width: 100%;
    padding: 12px 16px;
    background: var(--md-error-container);
    color: var(--md-on-error-container);
    border: none;
    border-radius: var(--md-shape-corner-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    font-weight: 500;
    font-size: var(--md-typescale-label-large);
    letter-spacing: 0.1px;
}

.logout-btn:hover {
    background: var(--md-error);
    color: var(--md-on-error);
    box-shadow: var(--md-elevation-2);
    transform: translateY(-2px);
}

.logout-btn:active {
    transform: translateY(0);
}

/* ========================================
   MAIN CONTENT AREA - Material 3
   ======================================== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    background: transparent;
}

/* ========================================
   TOP APP BAR - Material 3
   ======================================== */
.topbar {
    height: var(--topbar-height);
    background: var(--md-surface-container);
    border-bottom: 1px solid var(--md-outline-variant);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 997;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
    flex: 1;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--md-on-surface);
    font-size: 24px;
    cursor: pointer;
    padding: 12px;
    border-radius: var(--md-shape-corner-full);
    transition: var(--transition);
    position: relative;
}

.menu-toggle::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-surface);
    opacity: 0;
    border-radius: inherit;
    transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.menu-toggle:hover::before {
    opacity: 0.08;
}

.menu-toggle:active::before {
    opacity: 0.12;
}

#pageTitle {
    font-size: var(--md-typescale-headline-medium);
    font-weight: 400;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.bot-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--md-primary-container);
    border: none;
    border-radius: var(--md-shape-corner-full);
    white-space: nowrap;
    color: var(--md-on-primary-container);
    font-size: var(--md-typescale-label-medium);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--md-shape-corner-full);
    background: var(--md-primary);
    animation: materialPulse 2s var(--md-motion-easing-standard) infinite;
    box-shadow: 0 0 8px var(--md-primary);
}

@keyframes materialPulse {
    0%, 100% { 
        opacity: 1; 
        transform: scale(1);
        box-shadow: 0 0 8px var(--md-primary);
    }
    50% { 
        opacity: 0.7; 
        transform: scale(1.1);
        box-shadow: 0 0 16px var(--md-primary);
    }
}

.notification-bell {
    position: relative;
    cursor: pointer;
    font-size: 22px;
    color: var(--md-on-surface-variant);
    transition: var(--transition);
    padding: 12px;
    border-radius: var(--md-shape-corner-full);
    background: transparent;
}

.notification-bell::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-surface);
    opacity: 0;
    border-radius: inherit;
    transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.notification-bell:hover {
    color: var(--md-on-surface);
}

.notification-bell:hover::before {
    opacity: 0.08;
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--md-error);
    color: var(--md-on-error);
    font-size: var(--md-typescale-label-small);
    padding: 2px 6px;
    border-radius: var(--md-shape-corner-full);
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

/* ========================================
   CONTENT AREA - Material 3
   ======================================== */
.content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    overflow-x: hidden;
}

.section {
    display: none;
    animation: materialFadeIn var(--md-motion-duration-medium4) var(--md-motion-easing-emphasized-decelerate);
}

.section.active {
    display: block;
}

@keyframes materialFadeIn {
    from { 
        opacity: 0; 
        transform: translateY(16px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-header h2 {
    font-size: var(--md-typescale-headline-small);
    font-weight: 400;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

/* ========================================
   STATS GRID - Material 3 Expressive Cards
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--md-surface-container);
    padding: 24px;
    border-radius: var(--md-shape-corner-extra-large);
    display: flex;
    align-items: center;
    gap: 20px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    opacity: 0;
    transition: opacity var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-elevation-3);
    border-color: var(--md-primary);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--md-shape-corner-large);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    transition: var(--transition);
}

.stat-icon.blue { 
    background: var(--md-primary-container); 
    color: var(--md-primary);
    box-shadow: 0 0 20px rgba(107, 255, 184, 0.15);
}
.stat-icon.green { 
    background: var(--md-secondary-container); 
    color: var(--md-secondary);
    box-shadow: 0 0 20px rgba(131, 217, 201, 0.15);
}
.stat-icon.red { 
    background: var(--md-error-container); 
    color: var(--md-error);
    box-shadow: 0 0 20px rgba(255, 180, 171, 0.15);
}
.stat-icon.orange { 
    background: var(--md-tertiary-container); 
    color: var(--md-tertiary);
    box-shadow: 0 0 20px rgba(255, 219, 112, 0.15);
}

.stat-card:hover .stat-icon {
    transform: scale(1.1);
}

.stat-info h3 {
    font-size: var(--md-typescale-display-small);
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.stat-info p {
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.25px;
}

/* ========================================
   CARDS - Material 3 Surface Containers
   ======================================== */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.card {
    background: var(--md-surface-container);
    border-radius: var(--md-shape-corner-extra-large);
    border: 1px solid var(--md-outline-variant);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--md-elevation-2);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--md-outline-variant);
    background: var(--md-surface-container-low);
}

.card-header h3 {
    font-size: var(--md-typescale-title-large);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.card-header h3 i {
    color: var(--md-primary);
}

.card-header p {
    color: var(--md-on-surface-variant);
    margin-top: 4px;
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.25px;
}

.card-body {
    padding: 24px;
}

.status-item {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--md-outline-variant);
}

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

.status-item span {
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-medium);
}

.status-item strong {
    color: var(--md-on-surface);
    font-weight: 500;
}

/* ========================================
   SEARCH BAR - Material 3 Text Field
   ======================================== */
.search-bar {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.search-bar i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--md-on-surface-variant);
    pointer-events: none;
    transition: color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.search-bar input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: var(--md-surface-container-high);
    border: 1px solid transparent;
    border-radius: var(--md-shape-corner-full);
    color: var(--md-on-surface);
    font-size: var(--md-typescale-body-large);
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.search-bar input:focus {
    outline: none;
    background: var(--md-surface-container-highest);
    border-color: var(--md-primary);
    box-shadow: 0 0 0 2px rgba(107, 255, 184, 0.2);
}

.search-bar input:focus + i,
.search-bar:focus-within i {
    color: var(--md-primary);
}

.search-bar input::placeholder {
    color: var(--md-on-surface-variant);
}

/* ========================================
   TABS - Material 3 Segmented Buttons
   ======================================== */
.tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border: 1px solid var(--md-outline);
    border-radius: var(--md-shape-corner-full);
    overflow: hidden;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: fit-content;
}

.tabs::-webkit-scrollbar {
    height: 0;
}

.tab {
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-right: 1px solid var(--md-outline);
    color: var(--md-on-surface);
    cursor: pointer;
    font-size: var(--md-typescale-label-large);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.1px;
}

.tab:last-child {
    border-right: none;
}

.tab:hover {
    background: var(--glass-highlight);
}

.tab.active {
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

.tab.active::after {
    display: none;
}

.tab-content {
    display: none;
    animation: materialFadeIn var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized-decelerate);
}

.tab-content.active {
    display: block;
}

/* ========================================
   TABLES - Material 3 Data Tables
   ======================================== */
.table-container {
    background: var(--md-surface-container);
    border-radius: var(--md-shape-corner-large);
    border: 1px solid var(--md-outline-variant);
    overflow: hidden;
}

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

.data-table thead {
    background: var(--md-surface-container-low);
}

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--md-outline-variant);
}

.data-table th {
    font-weight: 500;
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-label-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tbody tr {
    transition: background-color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.data-table tbody tr:hover {
    background: var(--glass-highlight);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table td.loading {
    text-align: center;
    padding: 48px;
    color: var(--md-on-surface-variant);
}

/* ========================================
   BUTTONS - Material 3 Filled & Outlined
   ======================================== */
button, .btn {
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    letter-spacing: 0.1px;
}

/* Filled Button (Primary) */
.btn-primary {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border: none;
    padding: 14px 28px;
    border-radius: var(--md-shape-corner-full);
    font-size: var(--md-typescale-label-large);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--md-elevation-1);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.1);
    opacity: 0;
    transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.btn-primary:hover {
    box-shadow: var(--md-elevation-2), var(--glow-primary);
    transform: translateY(-2px);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--md-elevation-1);
}

/* Tonal Button (Secondary) */
.btn-secondary {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
    border: 1px solid var(--md-outline);
    padding: 14px 28px;
    border-radius: var(--md-shape-corner-full);
    font-size: var(--md-typescale-label-large);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-surface);
    opacity: 0;
    transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.btn-secondary:hover {
    border-color: var(--md-primary);
    color: var(--md-primary);
}

.btn-secondary:hover::before {
    opacity: 0.08;
}

/* Success Button */
.btn-success {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    border: none;
    padding: 14px 28px;
    border-radius: var(--md-shape-corner-full);
    font-size: var(--md-typescale-label-large);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--md-elevation-1);
}

.btn-success:hover {
    background: var(--md-secondary);
    color: var(--md-on-secondary);
    box-shadow: var(--md-elevation-2), var(--glow-secondary);
    transform: translateY(-2px);
}

/* Danger Button */
.btn-danger {
    background: var(--md-error-container);
    color: var(--md-on-error-container);
    border: none;
    padding: 14px 28px;
    border-radius: var(--md-shape-corner-full);
    font-size: var(--md-typescale-label-large);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--md-elevation-1);
}

.btn-danger:hover {
    background: var(--md-error);
    color: var(--md-on-error);
    box-shadow: var(--md-elevation-2);
    transform: translateY(-2px);
}

/* Warning Button */
.btn-warning {
    background: var(--md-tertiary-container);
    color: var(--md-on-tertiary-container);
    border: none;
    padding: 14px 28px;
    border-radius: var(--md-shape-corner-full);
    font-size: var(--md-typescale-label-large);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--md-elevation-1);
}

.btn-warning:hover {
    background: var(--md-tertiary);
    color: var(--md-on-tertiary);
    box-shadow: var(--md-elevation-2), var(--glow-tertiary);
    transform: translateY(-2px);
}

.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 10px 20px;
    font-size: var(--md-typescale-label-medium);
}

/* Delete Button for Tables */
.btn-delete {
    background: var(--md-error-container);
    color: var(--md-on-error-container);
    border: none;
    padding: 8px 16px;
    border-radius: var(--md-shape-corner-small);
    font-size: var(--md-typescale-label-medium);
    cursor: pointer;
    transition: var(--transition);
}

.btn-delete:hover {
    background: var(--md-error);
    color: var(--md-on-error);
}

/* ========================================
   FORMS - Material 3 Text Fields
   ======================================== */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 16px 20px;
    background: var(--md-surface-container-high);
    border: 1px solid var(--md-outline);
    border-radius: var(--md-shape-corner-medium);
    color: var(--md-on-surface);
    font-size: var(--md-typescale-body-large);
    font-family: inherit;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.form-control:focus {
    outline: none;
    border-color: var(--md-primary);
    background: var(--md-surface-container-highest);
    box-shadow: 0 0 0 2px rgba(107, 255, 184, 0.2);
}

.form-control:hover:not(:focus) {
    border-color: var(--md-on-surface);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2382978E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 20px;
    padding-right: 48px;
}

.code-editor {
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: var(--md-typescale-body-medium);
    line-height: 1.7;
    tab-size: 4;
}

.form-group small {
    display: block;
    margin-top: 8px;
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-small);
    letter-spacing: 0.4px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: var(--md-typescale-body-medium);
    color: var(--md-on-surface);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--md-primary);
}

/* ========================================
   SWITCH TOGGLE - Material 3
   ======================================== */
.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 32px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-surface-container-highest);
    border: 2px solid var(--md-outline);
    transition: var(--transition);
    border-radius: var(--md-shape-corner-full);
}

.slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 2px;
    bottom: 2px;
    background-color: var(--md-outline);
    transition: var(--transition);
    border-radius: var(--md-shape-corner-full);
}

input:checked + .slider {
    background-color: var(--md-primary);
    border-color: var(--md-primary);
}

input:checked + .slider:before {
    transform: translateX(20px);
    background-color: var(--md-on-primary);
}

input:focus + .slider {
    box-shadow: 0 0 0 3px rgba(107, 255, 184, 0.2);
}

/* ========================================
   MODAL / DIALOG - Material 3
   ======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: materialFadeIn var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized);
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--md-surface-container-high);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--md-shape-corner-extra-large);
    width: 90%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--md-elevation-5);
    animation: materialSlideUp var(--md-motion-duration-medium4) var(--md-motion-easing-emphasized-decelerate);
}

@keyframes materialSlideUp {
    from { 
        transform: translateY(48px) scale(0.95); 
        opacity: 0; 
    }
    to { 
        transform: translateY(0) scale(1); 
        opacity: 1; 
    }
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--md-outline-variant);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--md-surface-container);
    border-radius: var(--md-shape-corner-extra-large) var(--md-shape-corner-extra-large) 0 0;
}

.modal-header h3 {
    font-size: var(--md-typescale-headline-small);
    font-weight: 400;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.close-modal {
    background: transparent;
    border: none;
    font-size: 28px;
    color: var(--md-on-surface-variant);
    cursor: pointer;
    transition: var(--transition);
    padding: 8px;
    border-radius: var(--md-shape-corner-full);
    line-height: 1;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-modal:hover {
    background: var(--glass-highlight);
    color: var(--md-on-surface);
}

.modal-body {
    padding: 24px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--md-outline-variant);
}

/* ========================================
   SETTINGS & ACTIONS - Material 3
   ======================================== */
.settings-grid {
    display: grid;
    gap: 16px;
}

.setting-card {
    background: var(--md-surface-container);
    padding: 24px;
    border-radius: var(--md-shape-corner-extra-large);
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
}

.setting-card:hover {
    border-color: var(--md-primary);
    box-shadow: var(--md-elevation-1);
}

.setting-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.setting-header h3 {
    font-size: var(--md-typescale-title-medium);
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--md-on-surface);
    letter-spacing: 0.15px;
}

.setting-header p {
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.25px;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.action-card {
    background: var(--md-surface-container);
    padding: 32px;
    border-radius: var(--md-shape-corner-extra-large);
    border: 1px solid var(--md-outline-variant);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    opacity: 0;
    transition: opacity var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.action-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-elevation-3);
    border-color: var(--md-primary);
}

.action-card:hover::before {
    opacity: 1;
}

.action-card:nth-child(1)::before { background: var(--md-error); }
.action-card:nth-child(2)::before { background: var(--md-tertiary); }
.action-card:nth-child(3)::before { background: var(--md-primary); }

.action-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 24px;
    border-radius: var(--md-shape-corner-extra-large);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    transition: var(--transition);
}

.action-icon.red { 
    background: var(--md-error-container); 
    color: var(--md-error);
}
.action-icon.orange { 
    background: var(--md-tertiary-container); 
    color: var(--md-tertiary);
}
.action-icon.blue { 
    background: var(--md-primary-container); 
    color: var(--md-primary);
}

.action-card:hover .action-icon {
    transform: scale(1.1);
}

.action-card h3 {
    font-size: var(--md-typescale-title-large);
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.action-card p {
    color: var(--md-on-surface-variant);
    margin-bottom: 24px;
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.25px;
}

.action-card button {
    width: 100%;
}

/* ========================================
   ANNOUNCEMENTS - Material 3
   ======================================== */
.announcements-grid {
    display: grid;
    gap: 16px;
}

.announcement-item {
    background: var(--md-surface-container);
    padding: 24px;
    border-radius: var(--md-shape-corner-extra-large);
    border: 1px solid var(--md-outline-variant);
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 24px;
    transition: var(--transition);
    position: relative;
}

.announcement-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 24px;
    bottom: 24px;
    width: 4px;
    background: linear-gradient(180deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    border-radius: var(--md-shape-corner-full);
    opacity: 0;
    transition: opacity var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.announcement-item:hover {
    transform: translateX(8px);
    border-color: var(--md-primary);
    box-shadow: var(--md-elevation-2);
}

.announcement-item:hover::before {
    opacity: 1;
}

.announcement-content h3 {
    font-size: var(--md-typescale-title-large);
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.announcement-content p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    font-size: var(--md-typescale-body-medium);
    letter-spacing: 0.25px;
}

.announcement-date {
    color: var(--md-outline);
    font-size: var(--md-typescale-label-medium);
    margin-top: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.announcement-date::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--md-primary);
    border-radius: var(--md-shape-corner-full);
}

.announcement-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

/* ========================================
   MAINTENANCE STATUS - Material 3
   ======================================== */
.maintenance-status {
    margin-bottom: 24px;
    padding: 24px;
    background: var(--md-surface-container);
    border-radius: var(--md-shape-corner-extra-large);
    border: 2px solid var(--md-outline-variant);
    transition: var(--transition);
}

.maintenance-status.active {
    border-color: var(--md-tertiary);
    background: var(--md-tertiary-container);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 16px;
}

.status-indicator i {
    font-size: 36px;
    color: var(--md-primary);
}

.maintenance-status.active .status-indicator i {
    color: var(--md-tertiary);
    animation: materialPulse 2s var(--md-motion-easing-standard) infinite;
}

.status-indicator h3 {
    font-size: var(--md-typescale-title-large);
    font-weight: 500;
    color: var(--md-on-surface);
    letter-spacing: 0;
}

.maintenance-status.active .status-indicator h3 {
    color: var(--md-on-tertiary-container);
}

/* ========================================
   EVAL OUTPUT - Material 3
   ======================================== */
.eval-output {
    margin-top: 24px;
    padding: 20px;
    background: var(--md-surface-container-low);
    border-radius: var(--md-shape-corner-large);
    border: 1px solid var(--md-outline-variant);
}

.eval-output h4 {
    margin-bottom: 16px;
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-label-large);
    font-weight: 500;
    letter-spacing: 0.1px;
}

.eval-output pre {
    background: var(--md-surface-dim);
    padding: 20px;
    border-radius: var(--md-shape-corner-medium);
    overflow-x: auto;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: var(--md-typescale-body-small);
    color: var(--md-primary);
    border: 1px solid var(--md-outline-variant);
    line-height: 1.7;
}

/* ========================================
   DANGER ZONE - Material 3
   ======================================== */
.danger-zone {
    border: 2px solid var(--md-error);
    background: var(--md-surface-container);
}

.danger-zone .card-header {
    background: var(--md-error-container);
    border-bottom-color: var(--md-error);
}

.danger-zone .card-header h3 {
    color: var(--md-on-error-container);
}

.danger-zone .card-header h3 i {
    color: var(--md-error);
}

.danger-zone .card-header p {
    color: var(--md-on-error-container);
}

/* ========================================
   PAGINATION - Material 3
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
}

.pagination span {
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-medium);
    font-weight: 500;
}

.pagination button:disabled {
    opacity: 0.38;
    cursor: not-allowed;
    transform: none !important;
}

/* ========================================
   EMPTY STATE - Material 3
   ======================================== */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-large);
    letter-spacing: 0.5px;
}

.results-grid {
    display: grid;
    gap: 16px;
}

.user-result-card {
    background: var(--md-surface-container);
    padding: 20px;
    border-radius: var(--md-shape-corner-extra-large);
    border: 1px solid var(--md-outline-variant);
    display: flex;
    align-items: center;
    gap: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.user-result-card:hover {
    border-color: var(--md-primary);
    transform: translateX(8px);
    box-shadow: var(--md-elevation-2);
}

.user-result-card img {
    width: 64px;
    height: 64px;
    border-radius: var(--md-shape-corner-full);
    border: 2px solid var(--md-primary);
    box-shadow: 0 0 16px rgba(107, 255, 184, 0.2);
}

.user-result-info {
    flex: 1;
}

.user-result-info h4 {
    font-size: var(--md-typescale-title-medium);
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--md-on-surface);
    letter-spacing: 0.15px;
}

.user-result-info p {
    color: var(--md-on-surface-variant);
    font-size: var(--md-typescale-body-small);
    letter-spacing: 0.4px;
}

/* ========================================
   TOAST NOTIFICATIONS - Material 3 Snackbar
   ======================================== */
.toast-container {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.toast {
    background: var(--md-inverse-surface);
    color: var(--md-inverse-on-surface);
    padding: 16px 24px;
    border-radius: var(--md-shape-corner-medium);
    box-shadow: var(--md-elevation-3);
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 320px;
    max-width: 480px;
    animation: materialSlideInUp var(--md-motion-duration-medium4) var(--md-motion-easing-emphasized-decelerate);
}

@keyframes materialSlideInUp {
    from { 
        transform: translateY(100px); 
        opacity: 0; 
    }
    to { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

@keyframes materialSlideOutDown {
    from { 
        transform: translateY(0); 
        opacity: 1; 
    }
    to { 
        transform: translateY(100px); 
        opacity: 0; 
    }
}

.toast.success { 
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
}
.toast.error { 
    background: var(--md-error-container);
    color: var(--md-on-error-container);
}
.toast.warning { 
    background: var(--md-tertiary-container);
    color: var(--md-on-tertiary-container);
}
.toast.info { 
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

.toast i {
    font-size: 22px;
}

.toast.success i { color: var(--md-primary); }
.toast.error i { color: var(--md-error); }
.toast.warning i { color: var(--md-tertiary); }
.toast.info i { color: var(--md-secondary); }

.toast-message {
    flex: 1;
    font-size: var(--md-typescale-body-medium);
    font-weight: 500;
    letter-spacing: 0.25px;
}

/* ========================================
   UTILITY CLASSES - Material 3
   ======================================== */
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }

.text-success { color: var(--md-primary) !important; }
.text-danger { color: var(--md-error) !important; }
.text-warning { color: var(--md-tertiary) !important; }
.text-info { color: var(--md-secondary) !important; }

/* ========================================
   RESPONSIVE - Material 3 Breakpoints
   ======================================== */
@media (max-width: 1200px) {
    :root {
        --sidebar-width: 280px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .search-bar {
        max-width: 300px;
    }
    
    .actions-grid,
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .login-container {
        padding: 32px 24px;
    }
    
    .content {
        padding: 16px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .search-bar {
        max-width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .topbar {
        padding: 0 16px;
    }
    
    .topbar-right {
        gap: 12px;
    }
    
    .bot-status span {
        display: none;
    }
    
    .modal-content {
        width: 95%;
        max-width: 95%;
        border-radius: var(--md-shape-corner-large);
    }
    
    .announcement-item {
        flex-direction: column;
    }
    
    .announcement-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    
    .announcement-actions button {
        flex: 1;
        min-width: 100px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group button {
        width: 100%;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .data-table {
        font-size: var(--md-typescale-body-small);
    }
    
    .data-table th,
    .data-table td {
        padding: 12px;
    }
    
    .tabs {
        width: 100%;
        border-radius: var(--md-shape-corner-large);
    }
    
    .toast-container {
        left: 16px;
        right: 16px;
        transform: none;
    }
    
    .toast {
        min-width: auto;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    :root {
        --topbar-height: 64px;
        --sidebar-width: 100%;
    }
    
    .login-container {
        padding: 24px 20px;
        border-radius: var(--md-shape-corner-large);
    }
    
    .login-header i {
        font-size: 56px;
    }
    
    .content {
        padding: 12px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    
    .stat-info h3 {
        font-size: var(--md-typescale-headline-small);
    }
    
    .card-body,
    .card-header {
        padding: 16px;
    }
    
    .form-control {
        font-size: var(--md-typescale-body-large);
        padding: 14px 16px;
    }
    
    .modal-content {
        border-radius: var(--md-shape-corner-large);
        max-height: 100vh;
        width: 100%;
    }
    
    .modal-header,
    .modal-body {
        padding: 20px;
    }
    
    .data-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .tabs {
        flex-wrap: wrap;
        border-radius: var(--md-shape-corner-medium);
    }
    
    .tab {
        flex: 1;
        text-align: center;
        padding: 12px 16px;
    }
}

/* ========================================
   SCROLLBAR - Material 3
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--md-surface-container-low);
}

::-webkit-scrollbar-thumb {
    background: var(--md-outline-variant);
    border-radius: var(--md-shape-corner-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--md-outline);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--md-outline-variant) var(--md-surface-container-low);
}

/* ========================================
   TABS CONTAINER - Material 3
   ======================================== */
.tabs-container {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border: 1px solid var(--md-outline);
    border-radius: var(--md-shape-corner-full);
    overflow: hidden;
    width: fit-content;
}

.tabs-container .tab {
    padding: 12px 24px;
    background: transparent;
    color: var(--md-on-surface);
    border: none;
    border-right: 1px solid var(--md-outline);
    cursor: pointer;
    font-size: var(--md-typescale-label-large);
    font-weight: 500;
    transition: var(--transition);
    letter-spacing: 0.1px;
}

.tabs-container .tab:last-child {
    border-right: none;
}

.tabs-container .tab:hover {
    color: var(--md-primary);
    background: var(--glass-highlight);
}

.tabs-container .tab.active {
    color: var(--md-on-primary-container);
    background: var(--md-primary-container);
}