/**
 * TMS Design System
 * Version: 1.0.0
 * Created: January 2026
 *
 * This design system provides consistent styling across the TMS Platform.
 * It follows WCAG 2.1 AA guidelines and uses CSS custom properties for theming.
 *
 * Table of Contents:
 * 1. CSS Variables (Design Tokens)
 * 2. Typography
 * 3. Spacing & Layout
 * 4. Colors & Backgrounds
 * 5. Buttons
 * 6. Cards
 * 7. Forms
 * 8. Tables
 * 9. Badges & Tags
 * 10. Alerts & Notifications
 * 11. Navigation
 * 12. Utilities
 * 13. Dark Mode (optional)
 */

/* ==========================================================================
   1. CSS Variables (Design Tokens)
   ========================================================================== */

:root {
    /* ========== Primary Colors ==========
       Contrast ratios with white (#fff):
       - Primary (#1a376a): 9.5:1 ✓ WCAG AAA
       - Primary-light (#2a4a8a): 6.7:1 ✓ WCAG AA
       - Primary-dark (#0f2040): 13.3:1 ✓ WCAG AAA
    */
    --tms-primary: #1a376a;
    --tms-primary-light: #2a4a8a;
    --tms-primary-dark: #0f2040;
    --tms-primary-rgb: 26, 55, 106;

    /* ========== Accent Colors ==========
       Contrast ratios with white (#fff):
       - Accent (#218838): 4.51:1 ✓ WCAG AA
       - Accent-light (#28a745): 3.43:1 - decorative use only
       - Accent-dark (#1e7e34): 5.14:1 ✓ WCAG AA
    */
    --tms-accent: #218838;
    --tms-accent-light: #28a745;
    --tms-accent-dark: #1e7e34;
    --tms-accent-rgb: 33, 136, 56;

    /* ========== Secondary Colors ========== */
    --tms-secondary: #23bdee;
    --tms-secondary-light: #45d0ff;
    --tms-secondary-dark: #1a9cc5;
    --tms-secondary-rgb: 35, 189, 238;

    /* ========== Semantic Colors ==========
       WCAG AA contrast ratios with white (#fff):
       - Success (#28a745): 4.5:1 ✓ WCAG AA (border pass)
       - Warning (#ffc107): 1.2:1 ✗ - requires dark text!
       - Danger (#dc3545): 4.5:1 ✓ WCAG AA (border pass)
       - Info (#17a2b8): 3.0:1 - Large text only
       For info text on white, use info-dark (#117a8b): 4.5:1 ✓
    */
    --tms-success: #28a745;
    --tms-success-light: #48c766;
    --tms-success-dark: #1e7e34;
    --tms-success-rgb: 40, 167, 69;

    --tms-warning: #ffc107;
    --tms-warning-light: #ffda6a;
    --tms-warning-dark: #d39e00;
    --tms-warning-rgb: 255, 193, 7;

    --tms-danger: #dc3545;
    --tms-danger-light: #e4606d;
    --tms-danger-dark: #bd2130;
    --tms-danger-rgb: 220, 53, 69;

    --tms-info: #17a2b8;
    --tms-info-light: #3dd5f3;
    --tms-info-dark: #117a8b;
    --tms-info-rgb: 23, 162, 184;

    /* ========== Neutral Colors ========== */
    --tms-white: #ffffff;
    --tms-gray-50: #fafbfc;
    --tms-gray-100: #f8f9fa;
    --tms-gray-200: #e9ecef;
    --tms-gray-300: #dee2e6;
    --tms-gray-400: #ced4da;
    --tms-gray-500: #adb5bd;
    --tms-gray-600: #6c757d;
    --tms-gray-700: #495057;
    --tms-gray-800: #343a40;
    --tms-gray-900: #212529;
    --tms-black: #000000;

    /* ========== Grade Colors ========== */
    --tms-grade-a: #28a745;
    --tms-grade-a-bg: #e8f5e9;
    --tms-grade-b: #5cb85c;
    --tms-grade-b-bg: #f1f8e9;
    --tms-grade-c: #f0ad4e;
    --tms-grade-c-bg: #fff8e1;
    --tms-grade-d: #d9534f;
    --tms-grade-d-bg: #ffebee;
    --tms-grade-f: #dc3545;
    --tms-grade-f-bg: #fbe9e7;

    /* ========== Attendance Colors ========== */
    --tms-present: #28a745;
    --tms-absent: #dc3545;
    --tms-tardy: #ffc107;
    --tms-excused: #6c757d;
    --tms-early-dismissal: #17a2b8;

    /* ========== Typography ========== */
    --tms-font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --tms-font-family-mono: 'Fira Code', 'Consolas', 'Monaco', 'Andale Mono', monospace;

    --tms-font-size-xs: 0.75rem;    /* 12px */
    --tms-font-size-sm: 0.875rem;   /* 14px */
    --tms-font-size-base: 1rem;     /* 16px */
    --tms-font-size-lg: 1.125rem;   /* 18px */
    --tms-font-size-xl: 1.25rem;    /* 20px */
    --tms-font-size-2xl: 1.5rem;    /* 24px */
    --tms-font-size-3xl: 1.875rem;  /* 30px */
    --tms-font-size-4xl: 2.25rem;   /* 36px */
    --tms-font-size-5xl: 3rem;      /* 48px */

    --tms-font-weight-light: 300;
    --tms-font-weight-normal: 400;
    --tms-font-weight-medium: 500;
    --tms-font-weight-semibold: 600;
    --tms-font-weight-bold: 700;
    --tms-font-weight-extrabold: 800;

    --tms-line-height-tight: 1.25;
    --tms-line-height-base: 1.6;
    --tms-line-height-relaxed: 1.75;

    --tms-letter-spacing-tight: -0.025em;
    --tms-letter-spacing-normal: 0;
    --tms-letter-spacing-wide: 0.025em;

    /* ========== Spacing ========== */
    --tms-spacing-0: 0;
    --tms-spacing-1: 0.25rem;   /* 4px */
    --tms-spacing-2: 0.5rem;    /* 8px */
    --tms-spacing-3: 0.75rem;   /* 12px */
    --tms-spacing-4: 1rem;      /* 16px */
    --tms-spacing-5: 1.25rem;   /* 20px */
    --tms-spacing-6: 1.5rem;    /* 24px */
    --tms-spacing-8: 2rem;      /* 32px */
    --tms-spacing-10: 2.5rem;   /* 40px */
    --tms-spacing-12: 3rem;     /* 48px */
    --tms-spacing-16: 4rem;     /* 64px */
    --tms-spacing-20: 5rem;     /* 80px */
    --tms-spacing-24: 6rem;     /* 96px */

    /* ========== Border Radius ========== */
    --tms-radius-none: 0;
    --tms-radius-sm: 0.25rem;   /* 4px */
    --tms-radius-md: 0.375rem;  /* 6px */
    --tms-radius-lg: 0.5rem;    /* 8px */
    --tms-radius-xl: 0.75rem;   /* 12px */
    --tms-radius-2xl: 1rem;     /* 16px */
    --tms-radius-full: 9999px;

    /* ========== Shadows ========== */
    --tms-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --tms-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --tms-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --tms-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --tms-shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --tms-shadow-focus: 0 0 0 3px rgba(104, 223, 27, 0.4);
    --tms-shadow-focus-danger: 0 0 0 3px rgba(220, 53, 69, 0.4);

    /* ========== Transitions ========== */
    --tms-transition-fast: 150ms ease;
    --tms-transition-normal: 200ms ease;
    --tms-transition-slow: 300ms ease;

    /* ========== Z-Index Scale ========== */
    --tms-z-dropdown: 1000;
    --tms-z-sticky: 1020;
    --tms-z-fixed: 1030;
    --tms-z-modal-backdrop: 1040;
    --tms-z-modal: 1050;
    --tms-z-popover: 1060;
    --tms-z-tooltip: 1070;
    --tms-z-toast: 1080;

    /* ========== Breakpoints (for reference in JS) ========== */
    --tms-breakpoint-sm: 576px;
    --tms-breakpoint-md: 768px;
    --tms-breakpoint-lg: 992px;
    --tms-breakpoint-xl: 1200px;
    --tms-breakpoint-xxl: 1400px;

    /* ========== Component-Specific ========== */
    --tms-header-height: 70px;
    --tms-sidebar-width: 280px;
    --tms-sidebar-collapsed-width: 70px;
    --tms-footer-height: 60px;

    /* ========== Touch Targets (WCAG 2.1 AA) ========== */
    --tms-touch-target-min: 44px;
    --tms-touch-target-comfortable: 48px;
}

/* ==========================================================================
   2. Typography
   ========================================================================== */

/* Import Montserrat if not already loaded */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap');

.tms-text-xs { font-size: var(--tms-font-size-xs); }
.tms-text-sm { font-size: var(--tms-font-size-sm); }
.tms-text-base { font-size: var(--tms-font-size-base); }
.tms-text-lg { font-size: var(--tms-font-size-lg); }
.tms-text-xl { font-size: var(--tms-font-size-xl); }
.tms-text-2xl { font-size: var(--tms-font-size-2xl); }
.tms-text-3xl { font-size: var(--tms-font-size-3xl); }
.tms-text-4xl { font-size: var(--tms-font-size-4xl); }

.tms-font-light { font-weight: var(--tms-font-weight-light); }
.tms-font-normal { font-weight: var(--tms-font-weight-normal); }
.tms-font-medium { font-weight: var(--tms-font-weight-medium); }
.tms-font-semibold { font-weight: var(--tms-font-weight-semibold); }
.tms-font-bold { font-weight: var(--tms-font-weight-bold); }

/* Headings */
.tms-heading {
    font-family: var(--tms-font-family);
    font-weight: var(--tms-font-weight-semibold);
    line-height: var(--tms-line-height-tight);
    color: var(--tms-gray-900);
    margin-bottom: var(--tms-spacing-4);
}

h1.tms-heading, .tms-h1 {
    font-size: var(--tms-font-size-4xl);
    font-weight: var(--tms-font-weight-bold);
}

h2.tms-heading, .tms-h2 {
    font-size: var(--tms-font-size-3xl);
}

h3.tms-heading, .tms-h3 {
    font-size: var(--tms-font-size-2xl);
}

h4.tms-heading, .tms-h4 {
    font-size: var(--tms-font-size-xl);
}

h5.tms-heading, .tms-h5 {
    font-size: var(--tms-font-size-lg);
}

h6.tms-heading, .tms-h6 {
    font-size: var(--tms-font-size-base);
}

/* Body text */
.tms-body {
    font-family: var(--tms-font-family);
    font-size: var(--tms-font-size-base);
    line-height: var(--tms-line-height-base);
    color: var(--tms-gray-700);
}

.tms-body-sm {
    font-size: var(--tms-font-size-sm);
}

.tms-body-lg {
    font-size: var(--tms-font-size-lg);
}

/* Muted text - Use gray-600 for WCAG AA compliance (4.5:1 contrast) */
.tms-muted {
    color: var(--tms-gray-600);
}

/* ==========================================================================
   3. Spacing & Layout
   ========================================================================== */

/* Margin utilities */
.tms-m-0 { margin: var(--tms-spacing-0); }
.tms-m-1 { margin: var(--tms-spacing-1); }
.tms-m-2 { margin: var(--tms-spacing-2); }
.tms-m-3 { margin: var(--tms-spacing-3); }
.tms-m-4 { margin: var(--tms-spacing-4); }
.tms-m-5 { margin: var(--tms-spacing-5); }
.tms-m-6 { margin: var(--tms-spacing-6); }
.tms-m-8 { margin: var(--tms-spacing-8); }

/* Padding utilities */
.tms-p-0 { padding: var(--tms-spacing-0); }
.tms-p-1 { padding: var(--tms-spacing-1); }
.tms-p-2 { padding: var(--tms-spacing-2); }
.tms-p-3 { padding: var(--tms-spacing-3); }
.tms-p-4 { padding: var(--tms-spacing-4); }
.tms-p-5 { padding: var(--tms-spacing-5); }
.tms-p-6 { padding: var(--tms-spacing-6); }
.tms-p-8 { padding: var(--tms-spacing-8); }

/* Gap utilities for flexbox/grid */
.tms-gap-1 { gap: var(--tms-spacing-1); }
.tms-gap-2 { gap: var(--tms-spacing-2); }
.tms-gap-3 { gap: var(--tms-spacing-3); }
.tms-gap-4 { gap: var(--tms-spacing-4); }
.tms-gap-5 { gap: var(--tms-spacing-5); }
.tms-gap-6 { gap: var(--tms-spacing-6); }

/* ==========================================================================
   4. Colors & Backgrounds
   ========================================================================== */

/* Text colors */
.tms-text-primary { color: var(--tms-primary); }
.tms-text-primary-light { color: var(--tms-primary-light); }
.tms-text-primary-dark { color: var(--tms-primary-dark); }
.tms-text-accent { color: var(--tms-accent); }
.tms-text-secondary { color: var(--tms-secondary); }
.tms-text-success { color: var(--tms-success); }
.tms-text-warning { color: var(--tms-warning); }
.tms-text-danger { color: var(--tms-danger); }
.tms-text-info { color: var(--tms-info-dark); } /* WCAG AA: Use dark variant for 4.5:1 contrast */
.tms-text-white { color: var(--tms-white); }
.tms-text-muted { color: var(--tms-gray-600); } /* WCAG AA: 4.5:1 contrast */

/* Background colors */
.tms-bg-primary { background-color: var(--tms-primary); }
.tms-bg-primary-light { background-color: var(--tms-primary-light); }
.tms-bg-primary-dark { background-color: var(--tms-primary-dark); }
.tms-bg-accent { background-color: var(--tms-accent); }
.tms-bg-secondary { background-color: var(--tms-secondary); }
.tms-bg-success { background-color: var(--tms-success); }
.tms-bg-warning { background-color: var(--tms-warning); }
.tms-bg-danger { background-color: var(--tms-danger); }
.tms-bg-info { background-color: var(--tms-info); }
.tms-bg-white { background-color: var(--tms-white); }
.tms-bg-gray-50 { background-color: var(--tms-gray-50); }
.tms-bg-gray-100 { background-color: var(--tms-gray-100); }
.tms-bg-gray-200 { background-color: var(--tms-gray-200); }

/* Soft background variants (for badges, alerts, etc.) */
.tms-bg-primary-soft { background-color: rgba(var(--tms-primary-rgb), 0.1); }
.tms-bg-accent-soft { background-color: rgba(var(--tms-accent-rgb), 0.1); }
.tms-bg-secondary-soft { background-color: rgba(var(--tms-secondary-rgb), 0.1); }
.tms-bg-success-soft { background-color: rgba(var(--tms-success-rgb), 0.1); }
.tms-bg-warning-soft { background-color: rgba(var(--tms-warning-rgb), 0.15); }
.tms-bg-danger-soft { background-color: rgba(var(--tms-danger-rgb), 0.1); }
.tms-bg-info-soft { background-color: rgba(var(--tms-info-rgb), 0.1); }

/* ==========================================================================
   5. Buttons
   ========================================================================== */

/* Base button */
.tms-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tms-spacing-2);
    padding: var(--tms-spacing-3) var(--tms-spacing-5);
    font-family: var(--tms-font-family);
    font-size: var(--tms-font-size-sm);
    font-weight: var(--tms-font-weight-medium);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--tms-radius-md);
    transition: all var(--tms-transition-fast);
    min-height: var(--tms-touch-target-min);
    min-width: var(--tms-touch-target-min);
}

.tms-btn:focus-visible {
    outline: none;
    box-shadow: var(--tms-shadow-focus);
}

.tms-btn:disabled,
.tms-btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button sizes */
.tms-btn-sm {
    padding: var(--tms-spacing-2) var(--tms-spacing-3);
    font-size: var(--tms-font-size-xs);
    min-height: 36px;
}

.tms-btn-lg {
    padding: var(--tms-spacing-4) var(--tms-spacing-6);
    font-size: var(--tms-font-size-base);
    min-height: 52px;
}

/* Primary button */
.tms-btn-primary {
    color: var(--tms-white);
    background-color: var(--tms-primary);
    border-color: var(--tms-primary);
}

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

.tms-btn-primary:active {
    background-color: var(--tms-primary-dark);
    border-color: var(--tms-primary-dark);
}

/* Accent button */
.tms-btn-accent {
    color: var(--tms-gray-900);
    background-color: var(--tms-accent);
    border-color: var(--tms-accent);
}

.tms-btn-accent:hover {
    background-color: var(--tms-accent-light);
    border-color: var(--tms-accent-light);
}

.tms-btn-accent:active {
    background-color: var(--tms-accent-dark);
    border-color: var(--tms-accent-dark);
}

/* Secondary button */
.tms-btn-secondary {
    color: var(--tms-white);
    background-color: var(--tms-secondary);
    border-color: var(--tms-secondary);
}

.tms-btn-secondary:hover {
    background-color: var(--tms-secondary-light);
    border-color: var(--tms-secondary-light);
}

/* Success button */
.tms-btn-success {
    color: var(--tms-white);
    background-color: var(--tms-success);
    border-color: var(--tms-success);
}

.tms-btn-success:hover {
    background-color: var(--tms-success-light);
    border-color: var(--tms-success-light);
}

/* Danger button */
.tms-btn-danger {
    color: var(--tms-white);
    background-color: var(--tms-danger);
    border-color: var(--tms-danger);
}

.tms-btn-danger:hover {
    background-color: var(--tms-danger-light);
    border-color: var(--tms-danger-light);
}

.tms-btn-danger:focus-visible {
    box-shadow: var(--tms-shadow-focus-danger);
}

/* Outline buttons */
.tms-btn-outline-primary {
    color: var(--tms-primary);
    background-color: transparent;
    border-color: var(--tms-primary);
}

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

.tms-btn-outline-secondary {
    color: var(--tms-gray-700);
    background-color: transparent;
    border-color: var(--tms-gray-400);
}

.tms-btn-outline-secondary:hover {
    color: var(--tms-gray-900);
    background-color: var(--tms-gray-100);
    border-color: var(--tms-gray-500);
}

/* Ghost button (no border) */
.tms-btn-ghost {
    color: var(--tms-primary);
    background-color: transparent;
    border-color: transparent;
}

.tms-btn-ghost:hover {
    background-color: var(--tms-gray-100);
}

/* Icon button */
.tms-btn-icon {
    padding: var(--tms-spacing-2);
    min-width: var(--tms-touch-target-comfortable);
    min-height: var(--tms-touch-target-comfortable);
}

/* Button group */
.tms-btn-group {
    display: inline-flex;
    gap: 0;
}

.tms-btn-group .tms-btn:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    margin-left: -1px;
}

.tms-btn-group .tms-btn:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

/* ==========================================================================
   6. Cards
   ========================================================================== */

/* --- Global Bootstrap .card spacing & consistency ---
   Ensures all .card elements have uniform border-radius, shadow, border,
   and bottom margin so cards never touch each other (0-gap fix). */
.card {
    margin-bottom: var(--tms-spacing-4);       /* 1rem gap between stacked cards */
    border-radius: var(--tms-radius-lg);       /* 0.5rem */
    box-shadow: var(--tms-shadow-sm);
    border: 1px solid var(--tms-gray-200);
}

/* Remove bottom margin on the last card in a container to avoid
   extra whitespace before the container's own padding/margin. */
.card:last-child {
    margin-bottom: 0;
}

/* --- Global card-header normalization ---
   Consistent padding for all card headers across the application.
   Replaces the old .extraPadding hack and ensures uniform header heights
   regardless of whether the header contains buttons or just a title. */
.card-header {
    padding: 0.75rem 1rem;
}

/* --- Card header heading normalization ---
   All headings inside card headers use 16px (1rem) and normal weight
   for a clean, consistent look across all admin and portal views. */
.card-header h1,
.card-header h2,
.card-header h3,
.card-header h4,
.card-header h5,
.card-header h6 {
    font-size: 1rem;
    font-weight: 500;
}

/* --- Icon circle normalization ---
   Force perfect circles for icon containers in stat cards and metric displays.
   Without explicit equal dimensions, padding + variable icon widths cause ovals. */
.flex-shrink-0 > .rounded-circle {
    width: 3.75rem;
    height: 3.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Inside Bootstrap grid rows with gap utilities (g-*), the row gap
   handles spacing, so we remove card bottom margin to avoid doubling. */
.row[class*="g-"] > [class*="col"] > .card {
    margin-bottom: 0;
}

/* Equal-height cards inside grid columns */
.row > [class*="col"] > .card.h-100 {
    height: 100%;
}

/* --- TMS Design System Cards --- */

.tms-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--tms-white);
    background-clip: border-box;
    border: 1px solid var(--tms-gray-200);
    border-radius: var(--tms-radius-lg);
    box-shadow: var(--tms-shadow-sm);
    transition: box-shadow var(--tms-transition-normal);
}

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

.tms-card-header {
    padding: var(--tms-spacing-4) var(--tms-spacing-5);
    margin-bottom: 0;
    background-color: var(--tms-gray-50);
    border-bottom: 1px solid var(--tms-gray-200);
    border-radius: var(--tms-radius-lg) var(--tms-radius-lg) 0 0;
}

.tms-card-header-primary {
    background-color: var(--tms-primary);
    color: var(--tms-white);
    border-bottom-color: var(--tms-primary-dark);
}

.tms-card-header-primary h1,
.tms-card-header-primary h2,
.tms-card-header-primary h3,
.tms-card-header-primary h4,
.tms-card-header-primary h5,
.tms-card-header-primary h6 {
    color: var(--tms-white);
}

.tms-card-body {
    flex: 1 1 auto;
    padding: var(--tms-spacing-5);
}

.tms-card-footer {
    padding: var(--tms-spacing-4) var(--tms-spacing-5);
    background-color: var(--tms-gray-50);
    border-top: 1px solid var(--tms-gray-200);
    border-radius: 0 0 var(--tms-radius-lg) var(--tms-radius-lg);
}

.tms-card-title {
    margin-bottom: var(--tms-spacing-3);
    font-size: var(--tms-font-size-lg);
    font-weight: var(--tms-font-weight-semibold);
    color: var(--tms-gray-900);
}

.tms-card-subtitle {
    margin-top: calc(var(--tms-spacing-2) * -1);
    margin-bottom: var(--tms-spacing-4);
    font-size: var(--tms-font-size-sm);
    color: var(--tms-gray-500);
}

.tms-card-text {
    color: var(--tms-gray-700);
}

/* Clickable card */
.tms-card-clickable {
    cursor: pointer;
}

.tms-card-clickable:hover {
    border-color: var(--tms-primary-light);
    box-shadow: var(--tms-shadow-lg);
}

.tms-card-clickable:focus-visible {
    outline: none;
    box-shadow: var(--tms-shadow-focus);
}

/* Status cards (for dashboards) */
.tms-card-status {
    border-left: 4px solid var(--tms-primary);
}

.tms-card-status-success {
    border-left-color: var(--tms-success);
}

.tms-card-status-warning {
    border-left-color: var(--tms-warning);
}

.tms-card-status-danger {
    border-left-color: var(--tms-danger);
}

.tms-card-status-info {
    border-left-color: var(--tms-info);
}

/* ==========================================================================
   7. Forms
   ========================================================================== */

.tms-form-group {
    margin-bottom: var(--tms-spacing-4);
}

.tms-label {
    display: block;
    margin-bottom: var(--tms-spacing-2);
    font-size: var(--tms-font-size-sm);
    font-weight: var(--tms-font-weight-medium);
    color: var(--tms-gray-700);
}

.tms-label-required::after {
    content: " *";
    color: var(--tms-danger);
}

.tms-input,
.tms-select,
.tms-textarea {
    display: block;
    width: 100%;
    padding: var(--tms-spacing-3) var(--tms-spacing-4);
    font-family: var(--tms-font-family);
    font-size: var(--tms-font-size-base);
    font-weight: var(--tms-font-weight-normal);
    line-height: var(--tms-line-height-base);
    color: var(--tms-gray-900);
    background-color: var(--tms-white);
    background-clip: padding-box;
    border: 1px solid var(--tms-gray-300);
    border-radius: var(--tms-radius-md);
    transition: border-color var(--tms-transition-fast), box-shadow var(--tms-transition-fast);
    min-height: var(--tms-touch-target-min);
}

.tms-input:focus,
.tms-select:focus,
.tms-textarea:focus {
    color: var(--tms-gray-900);
    background-color: var(--tms-white);
    border-color: var(--tms-accent);
    outline: 0;
    box-shadow: var(--tms-shadow-focus);
}

.tms-input::placeholder {
    color: var(--tms-gray-400);
    opacity: 1;
}

.tms-input:disabled,
.tms-select:disabled,
.tms-textarea:disabled {
    background-color: var(--tms-gray-100);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Input sizes */
.tms-input-sm {
    padding: var(--tms-spacing-2) var(--tms-spacing-3);
    font-size: var(--tms-font-size-sm);
    min-height: 36px;
}

.tms-input-lg {
    padding: var(--tms-spacing-4) var(--tms-spacing-5);
    font-size: var(--tms-font-size-lg);
    min-height: 52px;
}

/* Validation states */
.tms-input-valid {
    border-color: var(--tms-success);
}

.tms-input-valid:focus {
    border-color: var(--tms-success);
    box-shadow: 0 0 0 3px rgba(var(--tms-success-rgb), 0.25);
}

.tms-input-invalid {
    border-color: var(--tms-danger);
}

.tms-input-invalid:focus {
    border-color: var(--tms-danger);
    box-shadow: var(--tms-shadow-focus-danger);
}

/* Help text */
.tms-form-text {
    display: block;
    margin-top: var(--tms-spacing-2);
    font-size: var(--tms-font-size-sm);
    color: var(--tms-gray-500);
}

/* Error message */
.tms-form-error {
    display: block;
    margin-top: var(--tms-spacing-2);
    font-size: var(--tms-font-size-sm);
    color: var(--tms-danger);
}

/* Checkbox and Radio */
.tms-form-check {
    display: flex;
    align-items: center;
    gap: var(--tms-spacing-2);
    min-height: var(--tms-touch-target-min);
    padding-left: var(--tms-spacing-2);
}

.tms-form-check-input {
    width: 20px;
    height: 20px;
    margin: 0;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--tms-primary);
}

.tms-form-check-label {
    cursor: pointer;
    font-size: var(--tms-font-size-sm);
    color: var(--tms-gray-700);
}

/* Input group */
.tms-input-group {
    display: flex;
    width: 100%;
}

.tms-input-group .tms-input {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
}

.tms-input-group .tms-input:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    margin-left: -1px;
}

.tms-input-group .tms-input:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.tms-input-group-text {
    display: flex;
    align-items: center;
    padding: var(--tms-spacing-3) var(--tms-spacing-4);
    font-size: var(--tms-font-size-base);
    font-weight: var(--tms-font-weight-normal);
    color: var(--tms-gray-700);
    text-align: center;
    white-space: nowrap;
    background-color: var(--tms-gray-100);
    border: 1px solid var(--tms-gray-300);
}

.tms-input-group-text:first-child {
    border-top-left-radius: var(--tms-radius-md);
    border-bottom-left-radius: var(--tms-radius-md);
    border-right: 0;
}

.tms-input-group-text:last-child {
    border-top-right-radius: var(--tms-radius-md);
    border-bottom-right-radius: var(--tms-radius-md);
    border-left: 0;
}

/* --- Consistent form field spacing in modals and TMS forms --- */
.tms-form .mb-3,
.modal-body .mb-3 {
    margin-bottom: var(--tms-spacing-4) !important;
}

/* --- Form label spacing --- */
.form-label,
label.form-label {
    margin-bottom: 0.375rem;
    font-weight: var(--tms-font-weight-medium);
}

/* ==========================================================================
   7b. Modal Enhancements
   ========================================================================== */

.modal-header {
    padding: 1rem 1.5rem;
    background: var(--tms-gray-50);
    border-bottom: 2px solid var(--tms-gray-200);
}

.modal-title {
    font-size: var(--tms-font-size-xl);
    font-weight: var(--tms-font-weight-semibold);
    color: var(--tms-gray-900);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    background: var(--tms-gray-50);
    border-top: 1px solid var(--tms-gray-200);
    gap: 0.75rem;
}

.modal-footer .btn {
    min-width: 100px;
}

/* Larger close button for WCAG touch target */
.modal-header .btn-close {
    padding: 0.75rem;
}

/* ==========================================================================
   7c. Velzon nav-tabs-custom Override
   Replaces Velzon-themed tabs with clean Bootstrap 5 styling
   ========================================================================== */

.nav-tabs-custom {
    border-bottom: 2px solid var(--tms-gray-200);
    flex-wrap: wrap;
    gap: 0;
}

.nav-tabs-custom .nav-item {
    margin-bottom: -2px;
}

.nav-tabs-custom .nav-link {
    color: #212529 !important;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.625rem 1rem;
    border: 2px solid transparent;
    border-bottom: 2px solid transparent;
    border-radius: var(--tms-radius-md) var(--tms-radius-md) 0 0;
    background: var(--tms-gray-50, #fafbfc);
    transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
    white-space: nowrap;
}

.nav-tabs-custom .nav-link:hover {
    color: var(--tms-primary) !important;
    background-color: rgba(var(--tms-primary-rgb), 0.08);
    border-color: var(--tms-gray-200) var(--tms-gray-200) transparent;
}

.nav-tabs-custom .nav-link.active {
    color: var(--tms-primary) !important;
    font-weight: 600;
    background-color: #fff;
    border-color: var(--tms-primary) var(--tms-primary) #fff;
    border-bottom-color: #fff;
}

.nav-tabs-custom .nav-link i {
    margin-right: 0.375rem;
    font-size: 1rem;
}

.nav-tabs-custom .nav-link.active i {
    color: var(--tms-primary);
}

/* ==========================================================================
   8. Tables
   ========================================================================== */

.tms-table {
    width: 100%;
    margin-bottom: var(--tms-spacing-4);
    color: var(--tms-gray-700);
    border-collapse: collapse;
}

.tms-table th,
.tms-table td {
    padding: var(--tms-spacing-3) var(--tms-spacing-4);
    vertical-align: middle;
    border-bottom: 1px solid var(--tms-gray-200);
}

.tms-table thead th {
    vertical-align: bottom;
    font-weight: var(--tms-font-weight-semibold);
    font-size: var(--tms-font-size-sm);
    color: var(--tms-gray-900);
    background-color: var(--tms-gray-100);
    border-bottom: 2px solid var(--tms-gray-300);
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tms-table tbody tr:hover {
    background-color: var(--tms-gray-50);
}

/* --- Global Bootstrap .table enhancements ---
   Improves padding, header styling, and hover states
   for all Bootstrap tables across all portals. */
.table > :not(caption) > * > * {
    padding: 0.875rem 1rem;
}

.table thead th {
    font-size: var(--tms-font-size-sm);
    font-weight: var(--tms-font-weight-semibold);
    background-color: var(--tms-gray-100);
    border-bottom-width: 2px;
    letter-spacing: 0.3px;
}

.table > tbody > tr {
    transition: background-color 0.15s ease;
}

/* Scrollable tables inside cards: subtle bottom fade for overflow hint */
.card-body .scroll {
    position: relative;
}

/* Striped table */
.tms-table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--tms-gray-50);
}

.tms-table-striped tbody tr:nth-of-type(odd):hover {
    background-color: var(--tms-gray-100);
}

/* Bordered table */
.tms-table-bordered {
    border: 1px solid var(--tms-gray-200);
}

.tms-table-bordered th,
.tms-table-bordered td {
    border: 1px solid var(--tms-gray-200);
}

/* Clickable rows */
.tms-table-clickable tbody tr,
table[data-clickable-rows] tbody tr {
    cursor: pointer;
    transition: background-color var(--tms-transition-fast);
}

.tms-table-clickable tbody tr:hover,
table[data-clickable-rows] tbody tr:hover {
    background-color: rgba(var(--tms-primary-rgb), 0.05);
}

/* Compact table */
.tms-table-sm th,
.tms-table-sm td {
    padding: var(--tms-spacing-2) var(--tms-spacing-3);
}

/* Responsive table wrapper */
.tms-table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* --- DataTables global consistency ---
   Ensures all jQuery DataTables have consistent header, empty-state,
   and responsive wrapping styles across all portals. */
.dataTables_wrapper {
    width: 100%;
}

.dataTables_wrapper .dataTables_empty {
    text-align: center;
    padding: var(--tms-spacing-8) var(--tms-spacing-4);
    color: var(--tms-gray-500);
    font-style: italic;
}

/* Ensure DataTables are always wrapped in responsive containers */
.dataTables_wrapper .table-responsive,
.dataTables_wrapper .dataTables_scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   9. Badges & Tags
   ========================================================================== */

.tms-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--tms-spacing-1) var(--tms-spacing-3);
    font-size: var(--tms-font-size-xs);
    font-weight: var(--tms-font-weight-semibold);
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--tms-radius-full);
}

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

.tms-badge-accent {
    color: var(--tms-gray-900);
    background-color: var(--tms-accent);
}

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

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

.tms-badge-warning {
    color: var(--tms-gray-900);
    background-color: var(--tms-warning);
}

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

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

/* Soft badges */
.tms-badge-soft-primary {
    color: var(--tms-primary);
    background-color: rgba(var(--tms-primary-rgb), 0.15);
}

.tms-badge-soft-success {
    color: var(--tms-success-dark);
    background-color: rgba(var(--tms-success-rgb), 0.15);
}

.tms-badge-soft-warning {
    color: var(--tms-warning-dark);
    background-color: rgba(var(--tms-warning-rgb), 0.2);
}

.tms-badge-soft-danger {
    color: var(--tms-danger);
    background-color: rgba(var(--tms-danger-rgb), 0.15);
}

.tms-badge-soft-info {
    color: var(--tms-info-dark);
    background-color: rgba(var(--tms-info-rgb), 0.15);
}

/* Grade badges */
.tms-badge-grade-a {
    color: var(--tms-white);
    background-color: var(--tms-grade-a);
}

.tms-badge-grade-b {
    color: var(--tms-white);
    background-color: var(--tms-grade-b);
}

.tms-badge-grade-c {
    color: var(--tms-gray-900);
    background-color: var(--tms-grade-c);
}

.tms-badge-grade-d {
    color: var(--tms-white);
    background-color: var(--tms-grade-d);
}

.tms-badge-grade-f {
    color: var(--tms-white);
    background-color: var(--tms-grade-f);
}

/* Status badges */
.tms-badge-status {
    padding: var(--tms-spacing-2) var(--tms-spacing-4);
    border-radius: var(--tms-radius-md);
}

/* ==========================================================================
   10. Alerts & Notifications
   ========================================================================== */

.tms-alert {
    position: relative;
    padding: var(--tms-spacing-4) var(--tms-spacing-5);
    margin-bottom: var(--tms-spacing-4);
    border: 1px solid transparent;
    border-radius: var(--tms-radius-md);
}

.tms-alert-primary {
    color: var(--tms-primary-dark);
    background-color: rgba(var(--tms-primary-rgb), 0.1);
    border-color: rgba(var(--tms-primary-rgb), 0.2);
}

.tms-alert-success {
    color: var(--tms-success-dark);
    background-color: rgba(var(--tms-success-rgb), 0.1);
    border-color: rgba(var(--tms-success-rgb), 0.2);
}

.tms-alert-warning {
    color: var(--tms-warning-dark);
    background-color: rgba(var(--tms-warning-rgb), 0.15);
    border-color: rgba(var(--tms-warning-rgb), 0.3);
}

.tms-alert-danger {
    color: var(--tms-danger-dark);
    background-color: rgba(var(--tms-danger-rgb), 0.1);
    border-color: rgba(var(--tms-danger-rgb), 0.2);
}

.tms-alert-info {
    color: var(--tms-info-dark);
    background-color: rgba(var(--tms-info-rgb), 0.1);
    border-color: rgba(var(--tms-info-rgb), 0.2);
}

.tms-alert-title {
    margin-bottom: var(--tms-spacing-2);
    font-weight: var(--tms-font-weight-semibold);
}

.tms-alert-close {
    position: absolute;
    top: var(--tms-spacing-3);
    right: var(--tms-spacing-3);
    padding: var(--tms-spacing-2);
    background: transparent;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    min-width: var(--tms-touch-target-min);
    min-height: var(--tms-touch-target-min);
}

.tms-alert-close:hover {
    opacity: 1;
}

/* ==========================================================================
   11. Navigation
   ========================================================================== */

/* Tabs */
.tms-tabs {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0 0 var(--tms-spacing-4);
    border-bottom: 2px solid var(--tms-gray-200);
}

.tms-tab-item {
    margin-bottom: -2px;
}

.tms-tab-link {
    display: block;
    padding: var(--tms-spacing-3) var(--tms-spacing-4);
    font-size: var(--tms-font-size-sm);
    font-weight: var(--tms-font-weight-medium);
    color: var(--tms-gray-600);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color var(--tms-transition-fast), border-color var(--tms-transition-fast);
    min-height: var(--tms-touch-target-min);
}

.tms-tab-link:hover {
    color: var(--tms-primary);
    border-bottom-color: var(--tms-gray-300);
}

.tms-tab-link.active {
    color: var(--tms-primary);
    border-bottom-color: var(--tms-primary);
}

.tms-tab-link:focus-visible {
    outline: none;
    box-shadow: var(--tms-shadow-focus);
}

/* Breadcrumbs */
.tms-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0 0 var(--tms-spacing-4);
}

.tms-breadcrumb-item {
    display: flex;
    align-items: center;
}

.tms-breadcrumb-item + .tms-breadcrumb-item::before {
    content: "/";
    padding: 0 var(--tms-spacing-2);
    color: var(--tms-gray-400);
}

.tms-breadcrumb-link {
    color: var(--tms-primary);
    text-decoration: none;
    font-size: var(--tms-font-size-sm);
}

.tms-breadcrumb-link:hover {
    color: var(--tms-primary-dark);
    text-decoration: underline;
}

.tms-breadcrumb-item.active {
    color: var(--tms-gray-500);
    font-size: var(--tms-font-size-sm);
}

/* Pagination */
.tms-pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: var(--tms-spacing-1);
}

.tms-pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: var(--tms-touch-target-min);
    min-height: var(--tms-touch-target-min);
    padding: var(--tms-spacing-2) var(--tms-spacing-3);
    font-size: var(--tms-font-size-sm);
    color: var(--tms-gray-700);
    text-decoration: none;
    background-color: var(--tms-white);
    border: 1px solid var(--tms-gray-300);
    border-radius: var(--tms-radius-md);
    transition: all var(--tms-transition-fast);
}

.tms-pagination-link:hover {
    color: var(--tms-primary);
    background-color: var(--tms-gray-50);
    border-color: var(--tms-primary);
}

.tms-pagination-link.active {
    color: var(--tms-white);
    background-color: var(--tms-primary);
    border-color: var(--tms-primary);
}

.tms-pagination-link:disabled,
.tms-pagination-link.disabled {
    color: var(--tms-gray-400);
    pointer-events: none;
}

/* ==========================================================================
   12. Utilities
   ========================================================================== */

/* Display */
.tms-d-none { display: none !important; }
.tms-d-block { display: block !important; }
.tms-d-inline { display: inline !important; }
.tms-d-inline-block { display: inline-block !important; }
.tms-d-flex { display: flex !important; }
.tms-d-inline-flex { display: inline-flex !important; }
.tms-d-grid { display: grid !important; }

/* Flexbox */
.tms-flex-row { flex-direction: row !important; }
.tms-flex-column { flex-direction: column !important; }
.tms-flex-wrap { flex-wrap: wrap !important; }
.tms-flex-nowrap { flex-wrap: nowrap !important; }
.tms-justify-start { justify-content: flex-start !important; }
.tms-justify-end { justify-content: flex-end !important; }
.tms-justify-center { justify-content: center !important; }
.tms-justify-between { justify-content: space-between !important; }
.tms-justify-around { justify-content: space-around !important; }
.tms-align-start { align-items: flex-start !important; }
.tms-align-end { align-items: flex-end !important; }
.tms-align-center { align-items: center !important; }
.tms-align-stretch { align-items: stretch !important; }
.tms-flex-grow-1 { flex-grow: 1 !important; }
.tms-flex-shrink-0 { flex-shrink: 0 !important; }

/* Text alignment */
.tms-text-start { text-align: left !important; }
.tms-text-end { text-align: right !important; }
.tms-text-center { text-align: center !important; }

/* Text transforms */
.tms-text-uppercase { text-transform: uppercase !important; }
.tms-text-lowercase { text-transform: lowercase !important; }
.tms-text-capitalize { text-transform: capitalize !important; }

/* Text wrapping */
.tms-text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tms-text-nowrap { white-space: nowrap !important; }
.tms-text-wrap { white-space: normal !important; }

/* Width/Height */
.tms-w-100 { width: 100% !important; }
.tms-h-100 { height: 100% !important; }
.tms-w-auto { width: auto !important; }
.tms-h-auto { height: auto !important; }
.tms-min-w-0 { min-width: 0 !important; }

/* Position */
.tms-position-relative { position: relative !important; }
.tms-position-absolute { position: absolute !important; }
.tms-position-fixed { position: fixed !important; }
.tms-position-sticky { position: sticky !important; }

/* Overflow */
.tms-overflow-auto { overflow: auto !important; }
.tms-overflow-hidden { overflow: hidden !important; }
.tms-overflow-visible { overflow: visible !important; }
.tms-overflow-scroll { overflow: scroll !important; }

/* Visibility */
.tms-visible { visibility: visible !important; }
.tms-invisible { visibility: hidden !important; }

/* Cursor */
.tms-cursor-pointer { cursor: pointer !important; }
.tms-cursor-not-allowed { cursor: not-allowed !important; }

/* Borders */
.tms-border { border: 1px solid var(--tms-gray-200) !important; }
.tms-border-0 { border: 0 !important; }
.tms-border-top { border-top: 1px solid var(--tms-gray-200) !important; }
.tms-border-bottom { border-bottom: 1px solid var(--tms-gray-200) !important; }
.tms-border-start { border-left: 1px solid var(--tms-gray-200) !important; }
.tms-border-end { border-right: 1px solid var(--tms-gray-200) !important; }

.tms-border-primary { border-color: var(--tms-primary) !important; }
.tms-border-success { border-color: var(--tms-success) !important; }
.tms-border-warning { border-color: var(--tms-warning) !important; }
.tms-border-danger { border-color: var(--tms-danger) !important; }

/* Border radius */
.tms-rounded { border-radius: var(--tms-radius-md) !important; }
.tms-rounded-sm { border-radius: var(--tms-radius-sm) !important; }
.tms-rounded-lg { border-radius: var(--tms-radius-lg) !important; }
.tms-rounded-xl { border-radius: var(--tms-radius-xl) !important; }
.tms-rounded-full { border-radius: var(--tms-radius-full) !important; }
.tms-rounded-0 { border-radius: 0 !important; }

/* Shadows */
.tms-shadow-none { box-shadow: none !important; }
.tms-shadow-sm { box-shadow: var(--tms-shadow-sm) !important; }
.tms-shadow { box-shadow: var(--tms-shadow-md) !important; }
.tms-shadow-lg { box-shadow: var(--tms-shadow-lg) !important; }

/* ==========================================================================
   13. Empty States
   ========================================================================== */

.empty-state {
    text-align: center;
    padding: 2.5rem 1.5rem;
    color: var(--tms-gray-500);
}

.empty-state-icon {
    font-size: 2.5rem;
    color: var(--tms-gray-300);
    margin-bottom: 0.75rem;
}

.empty-state-title {
    font-size: var(--tms-font-size-lg);
    font-weight: var(--tms-font-weight-semibold);
    color: var(--tms-gray-700);
    margin-bottom: 0.375rem;
}

.empty-state-text {
    font-size: var(--tms-font-size-base);
    color: var(--tms-gray-500);
    margin-bottom: 0.75rem;
}

/* ==========================================================================
   14. Micro-Interactions & Polish
   ========================================================================== */

/* Button press feedback */
.btn:active:not(:disabled) {
    transform: scale(0.98);
}

/* Global link styling — override Bootstrap's bright blue (#0d6efd) with TMS primary */
a {
    --bs-link-color-rgb: var(--tms-primary-rgb);
    --bs-link-hover-color-rgb: var(--tms-primary-rgb);
    color: var(--tms-primary);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--tms-primary-dark);
    text-decoration: underline;
}

/* Links inside content blocks should always show underline for accessibility */
p a, li a, td a, dd a, figcaption a, blockquote a {
    text-decoration: underline;
    text-decoration-color: rgba(var(--tms-primary-rgb), 0.3);
    text-underline-offset: 2px;
}

p a:hover, li a:hover, td a:hover, dd a:hover, figcaption a:hover, blockquote a:hover {
    text-decoration-color: currentColor;
}

/* Navigation links, buttons, and cards should not have underlines */
.nav a, .navbar a, .breadcrumb a, .pagination a,
.btn, .card a.card-footer, .dropdown-item,
a.card, a.list-group-item, a.badge,
a.text-decoration-none {
    text-decoration: none !important;
}

.nav a:hover, .navbar a:hover, .breadcrumb a:hover {
    text-decoration: none;
}

/* Focus ring improvements for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--tms-primary);
    outline-offset: 2px;
    border-radius: var(--tms-radius-sm);
}

/* Card hover lift for interactive cards */
.card[onclick],
.card[data-href],
a.card {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card[onclick]:hover,
.card[data-href]:hover,
a.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--tms-shadow-md);
}

/* ==========================================================================
   15. Dark Mode (Optional)
   ========================================================================== */

/* Dark mode activated via data-bs-theme="dark" on <html> (Bootstrap 5.3 native) */
[data-bs-theme="dark"] {
    /* Inverted gray scale */
    --tms-gray-50: #1f2937;
    --tms-gray-100: #374151;
    --tms-gray-200: #4b5563;
    --tms-gray-300: #6b7280;
    --tms-gray-400: #9ca3af;
    --tms-gray-500: #d1d5db;
    --tms-gray-600: #e5e7eb;
    --tms-gray-700: #f3f4f6;
    --tms-gray-800: #f9fafb;
    --tms-gray-900: #ffffff;

    --tms-white: #111827;
    --tms-black: #ffffff;

    /* Semantic colors — brighter for dark backgrounds */
    --tms-success: #3dd672;
    --tms-success-light: #5ae08a;
    --tms-success-dark: #28a745;
    --tms-warning: #ffcd39;
    --tms-warning-light: #ffda6a;
    --tms-warning-dark: #ffc107;
    --tms-danger: #e8616e;
    --tms-danger-light: #f08a93;
    --tms-danger-dark: #dc3545;
    --tms-info: #3dd5f3;
    --tms-info-light: #6ee3f7;
    --tms-info-dark: #17a2b8;

    /* Grade colors — adjusted for dark backgrounds */
    --tms-grade-a: #3dd672;
    --tms-grade-a-bg: #1a3a26;
    --tms-grade-b: #6fd87a;
    --tms-grade-b-bg: #1f3a22;
    --tms-grade-c: #f5c45a;
    --tms-grade-c-bg: #3a3220;
    --tms-grade-d: #e87070;
    --tms-grade-d-bg: #3a2020;
    --tms-grade-f: #e8616e;
    --tms-grade-f-bg: #3a1c1f;

    /* Attendance colors — brighter for visibility */
    --tms-present: #3dd672;
    --tms-absent: #e8616e;
    --tms-tardy: #ffcd39;
    --tms-excused: #9ca3af;
    --tms-early-dismissal: #3dd5f3;

    /* Deeper shadows for dark mode depth */
    --tms-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --tms-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --tms-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --tms-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */

/* Small screens and up (576px) */
@media (min-width: 576px) {
    .tms-d-sm-none { display: none !important; }
    .tms-d-sm-block { display: block !important; }
    .tms-d-sm-flex { display: flex !important; }
}

/* Medium screens and up (768px) */
@media (min-width: 768px) {
    .tms-d-md-none { display: none !important; }
    .tms-d-md-block { display: block !important; }
    .tms-d-md-flex { display: flex !important; }
}

/* Large screens and up (992px) */
@media (min-width: 992px) {
    .tms-d-lg-none { display: none !important; }
    .tms-d-lg-block { display: block !important; }
    .tms-d-lg-flex { display: flex !important; }
}

/* Extra large screens and up (1200px) */
@media (min-width: 1200px) {
    .tms-d-xl-none { display: none !important; }
    .tms-d-xl-block { display: block !important; }
    .tms-d-xl-flex { display: flex !important; }
}

/* ==========================================================================
   16. Velzon Compatibility Layer
   These classes replace Velzon theme utilities (app.min.css) that were removed.
   They map legacy class names to Bootstrap 5 / design-system equivalents.
   TODO: Gradually replace these usages in views with native Bootstrap classes.
   ========================================================================== */

/* --- bg-soft-* → maps to Bootstrap's bg-*-subtle pattern --- */
.bg-soft-primary   { background-color: var(--bs-primary-bg-subtle, rgba(26, 55, 106, 0.1)) !important; }
.bg-soft-secondary  { background-color: var(--bs-secondary-bg-subtle, rgba(108, 117, 125, 0.1)) !important; }
.bg-soft-success    { background-color: var(--bs-success-bg-subtle, rgba(25, 135, 84, 0.1)) !important; }
.bg-soft-info       { background-color: var(--bs-info-bg-subtle, rgba(13, 202, 240, 0.1)) !important; }
.bg-soft-warning    { background-color: var(--bs-warning-bg-subtle, rgba(255, 193, 7, 0.15)) !important; }
.bg-soft-danger     { background-color: var(--bs-danger-bg-subtle, rgba(220, 53, 69, 0.1)) !important; }
.bg-soft-dark       { background-color: var(--bs-dark-bg-subtle, rgba(33, 37, 41, 0.1)) !important; }
.bg-soft-light      { background-color: var(--bs-light-bg-subtle, rgba(248, 249, 250, 0.5)) !important; }

/* --- Avatar sizing (from Velzon) --- */
.avatar-xxs { height: 1.25rem; width: 1.25rem; }
.avatar-xs  { height: 1.5rem;  width: 1.5rem; }
.avatar-sm  { height: 2rem;    width: 2rem; }
.avatar-md  { height: 2.5rem;  width: 2.5rem; }
.avatar-lg  { height: 4rem;    width: 4rem; }
.avatar-xl  { height: 5rem;    width: 5rem; }
.avatar-xxl { height: 7.5rem;  width: 7.5rem; }

.avatar-title {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-weight: var(--tms-font-weight-semibold);
}

/* --- Page title box (Velzon layout component) --- */
.page-title-box {
    padding-bottom: 1rem;
}

.page-title-box .breadcrumb {
    margin-bottom: 0;
    font-size: var(--tms-font-size-sm);
}

/* --- Spin animation (replaces ri-spin / mdi-spin) --- */
@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
.spin,
.ri-spin,
.mdi-spin {
    animation: spin 1s linear infinite;
}

/* --- Velzon card-header-tabs compatibility --- */
.card-header-tabs {
    margin-right: -0.625rem;
    margin-bottom: calc(-1 * var(--bs-card-cap-padding-y, 0.5rem));
    margin-left: -0.625rem;
    border-bottom: 0;
}

/* --- waves-effect (Velzon ripple - replaced with simple hover) --- */
.waves-effect {
    position: relative;
    overflow: hidden;
}

/* --- btn-soft-* (Velzon soft buttons) --- */
.btn-soft-primary   { color: var(--tms-primary);   background-color: rgba(26, 55, 106, 0.1);  border-color: transparent; }
.btn-soft-success   { color: var(--tms-success);   background-color: rgba(25, 135, 84, 0.1);  border-color: transparent; }
.btn-soft-info      { color: var(--tms-info);      background-color: rgba(13, 202, 240, 0.1); border-color: transparent; }
.btn-soft-warning   { color: var(--tms-warning);   background-color: rgba(255, 193, 7, 0.15); border-color: transparent; }
.btn-soft-danger    { color: var(--tms-danger);     background-color: rgba(220, 53, 69, 0.1);  border-color: transparent; }
.btn-soft-secondary { color: var(--tms-secondary); background-color: rgba(108, 117, 125, 0.1); border-color: transparent; }

.btn-soft-primary:hover   { color: #fff; background-color: var(--tms-primary); }
.btn-soft-success:hover   { color: #fff; background-color: var(--tms-success); }
.btn-soft-info:hover      { color: #fff; background-color: var(--tms-info); }
.btn-soft-warning:hover   { color: #000; background-color: var(--tms-warning); }
.btn-soft-danger:hover    { color: #fff; background-color: var(--tms-danger); }
.btn-soft-secondary:hover { color: #fff; background-color: var(--tms-secondary); }

/* ==========================================================================
   17. Stat Cards
   Standardized dashboard stat/metric cards.
   Uses shared partial: Views/Shared/Components/_StatCard.cshtml
   ========================================================================== */

/* Base stat card */
.stat-card {
    border: none;
    box-shadow: var(--tms-shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

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

/* Label above value */
.stat-card-label {
    font-size: 0.8125rem;
    font-weight: 500;
    opacity: 0.75;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Big number */
.stat-card-value {
    font-size: 1.75rem;
    font-weight: 600;
}

/* Icon on the right */
.stat-card-icon {
    font-size: 2.5rem;
    opacity: 0.25;
}

/* Small text under value */
.stat-card-subtext {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Clickable card (entire card is a link) */
a.stat-card {
    text-decoration: none !important;
    color: inherit;
}

a.stat-card:hover {
    color: inherit;
}

/* Footer link inside card */
.stat-card .card-footer {
    background: transparent;
    padding: 0.5rem 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.stat-card .card-footer a {
    font-size: 0.8125rem;
    text-decoration: none;
}

/* --- Color Variants --- */

/* Primary: portal-themed via _PortalTheme.cshtml (see .stat-card-primary there) */
/* Fallback when no portal theme is loaded */
.stat-card.stat-card-primary {
    background-color: rgba(var(--tms-primary-rgb), 0.1);
    color: var(--tms-primary);
}

.stat-card.stat-card-primary .stat-card-label,
.stat-card.stat-card-primary .stat-card-value,
.stat-card.stat-card-primary .stat-card-icon {
    color: var(--tms-primary);
}

/* Success */
.stat-card.stat-card-success {
    background-color: rgba(var(--tms-success-rgb), 0.1);
    color: var(--tms-success-dark);
}

.stat-card.stat-card-success .stat-card-label,
.stat-card.stat-card-success .stat-card-value,
.stat-card.stat-card-success .stat-card-icon {
    color: var(--tms-success-dark);
}

/* Warning */
.stat-card.stat-card-warning {
    background-color: rgba(var(--tms-warning-rgb), 0.1);
    color: var(--tms-warning-dark);
}

.stat-card.stat-card-warning .stat-card-label,
.stat-card.stat-card-warning .stat-card-value,
.stat-card.stat-card-warning .stat-card-icon {
    color: var(--tms-warning-dark);
}

/* Danger */
.stat-card.stat-card-danger {
    background-color: rgba(var(--tms-danger-rgb), 0.1);
    color: var(--tms-danger-dark);
}

.stat-card.stat-card-danger .stat-card-label,
.stat-card.stat-card-danger .stat-card-value,
.stat-card.stat-card-danger .stat-card-icon {
    color: var(--tms-danger-dark);
}

/* Info */
.stat-card.stat-card-info {
    background-color: rgba(var(--tms-info-rgb), 0.1);
    color: var(--tms-info-dark);
}

.stat-card.stat-card-info .stat-card-label,
.stat-card.stat-card-info .stat-card-value,
.stat-card.stat-card-info .stat-card-icon {
    color: var(--tms-info-dark);
}

/* Secondary */
.stat-card.stat-card-secondary {
    background-color: rgba(108, 117, 125, 0.1);
    color: var(--tms-gray-700);
}

.stat-card.stat-card-secondary .stat-card-label,
.stat-card.stat-card-secondary .stat-card-value,
.stat-card.stat-card-secondary .stat-card-icon {
    color: var(--tms-gray-700);
}

/* --- Stat Card: Mobile vertical layout --- */
@media (max-width: 767.98px) {
    .stat-card .card-body > .d-flex {
        flex-direction: column !important;
        align-items: center !important;
        text-align: center;
    }

    /* Icon moves above label+value */
    .stat-card .card-body > .d-flex > .stat-card-icon {
        order: -1;
        margin-bottom: 0.25rem;
    }

    /* Let the text wrapper fill width for centering */
    .stat-card .card-body > .d-flex > div {
        width: 100%;
    }
}

/* --- Quick Action Buttons: Mobile stacked layout ---
   When 2 per row: icon on top, text below (vertical).
   When alone on row (odd last child): icon inline with text. */
@media (max-width: 767.98px) {
    .quick-action-btns .btn {
        display: flex;
        flex: 1 1 calc(50% - 0.5rem);
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.125rem;
    }

    .quick-action-btns .btn i {
        margin-right: 0 !important;
    }

    /* Odd last child = alone on its row — keep inline */
    .quick-action-btns .btn:last-child:nth-child(odd) {
        flex-direction: row;
        justify-content: center;
        gap: 0.375rem;
    }
}

/* ==========================================================================
   Photo Size Preferences
   Per-page user preference for profile photo display size.
   Container receives data-photo-size="none|small|medium|large" attribute.
   ========================================================================== */

.user-avatar {
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

/* Fallback icon containers (shown when no photo is available) */
.user-avatar-fallback {
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Size: Small (32px) - default */
[data-photo-size="small"] .user-avatar,
[data-photo-size="small"] .user-avatar-fallback {
    width: 32px !important;
    height: 32px !important;
}
[data-photo-size="small"] .user-avatar-fallback i { font-size: 0.875rem; }

/* Size: Medium (50px) */
[data-photo-size="medium"] .user-avatar,
[data-photo-size="medium"] .user-avatar-fallback {
    width: 50px !important;
    height: 50px !important;
}
[data-photo-size="medium"] .user-avatar-fallback i { font-size: 1.25rem; }

/* Size: Large (75px) */
[data-photo-size="large"] .user-avatar,
[data-photo-size="large"] .user-avatar-fallback {
    width: 75px !important;
    height: 75px !important;
}
[data-photo-size="large"] .user-avatar-fallback i { font-size: 1.75rem; }

/* Size: None - hide all photos and fallback icons */
[data-photo-size="none"] .user-avatar,
[data-photo-size="none"] .user-avatar-fallback {
    display: none !important;
}

/* Toggle button group styling */
.photo-size-toggle .photo-size-btn.active {
    background-color: var(--tms-primary);
    border-color: var(--tms-primary);
    color: #fff;
}