/* VSCHOOL Theme & Design System - Compact High-Density Scale (75%-80%) */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* Brand Primary Colors (VSCHOOL SUNKIDS) */
    --vs-gold-light: #E2CA4F;
    --vs-gold-mid: #B59439;
    --vs-gold-dark: #9C7528;
    --vs-dark-brown: #4A2B0F;
    --vs-dark: #2A180B;
    --vs-dark-sidebar: #221207;
    --vs-dark-active: #382010;
    --vs-dark-hover: #311B0C;
    
    /* Typography Fonts */
    --vs-font-primary: 'UTM Aptima', 'Plus Jakarta Sans', sans-serif;
    --vs-font-ui: 'Neue Einstellung', 'Plus Jakarta Sans', system-ui, sans-serif;
    
    /* Backgrounds & Text */
    --vs-bg-main: #F7F5F0;
    --vs-card-bg: #FFFFFF;
    --vs-text-dark: #2A2118;
    --vs-text-muted: #7A7067;
    --vs-border-color: #EAE5DC;

    /* Badges & Status */
    --vs-danger-bg: #FEE2E2;
    --vs-danger-text: #DC2626;
    --vs-info-bg: #E0F2FE;
    --vs-info-text: #0284C7;
    --vs-success-bg: #DCFCE7;
    --vs-success-text: #16A34A;
}

/* Overall UI Compact Scale */
html,
body {
    min-height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

html {
    font-size: 85%;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--vs-bg-main);
    color: var(--vs-text-dark);
    line-height: 1.4;
    min-height: 100vh;
}

/* Remove default link underlines globally */
a,
a:hover,
a:focus,
.grade-tab-btn,
.vs-sub-tab-btn,
.nav-link,
.btn {
    text-decoration: none !important;
}

.vschool-app-layout {
    min-height: 100vh;
    display: flex;
    width: 100%;
    position: relative;
}

/* Sidebar Custom Styling - Fixed Position Anchored on Left */
.vschool-sidebar {
    background-color: var(--vs-dark-sidebar) !important;
    color: #FFFFFF;
    position: fixed !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    height: 100vh !important;
    height: 100dvh !important;
    width: 270px !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    overflow: hidden !important;
    z-index: 1040 !important;
    display: flex !important;
    flex-direction: column !important;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15) !important;
}

.vschool-sidebar.collapsed {
    transform: translateX(-100%) !important;
}

/* Main Content Area next to Fixed Sidebar */
.vschool-app-layout > main {
    margin-left: 270px;
    width: calc(100% - 270px);
    min-width: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.vschool-sidebar.collapsed ~ main,
.vschool-app-layout.no-sidebar > main,
.vschool-app-layout:not(:has(.vschool-sidebar)) > main {
    margin-left: 0 !important;
    width: 100% !important;
}

.vschool-sidebar .sidebar-brand {
    background: linear-gradient(180deg, rgba(226, 202, 79, 0.15) 0%, rgba(0, 0, 0, 0) 100%);
    border-bottom: 1px solid rgba(226, 202, 79, 0.2);
    padding: 0.85rem 1rem !important;
    white-space: nowrap;
    flex-shrink: 0;
}

.vschool-sidebar .sidebar-nav-container {
    flex-grow: 1;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    scrollbar-width: thin;
    scrollbar-color: rgba(226, 202, 79, 0.3) transparent;
}

.vschool-sidebar .sidebar-nav-container::-webkit-scrollbar {
    width: 5px;
}

.vschool-sidebar .sidebar-nav-container::-webkit-scrollbar-thumb {
    background: rgba(226, 202, 79, 0.3);
    border-radius: 4px;
}

.vschool-sidebar .sidebar-footer {
    flex-shrink: 0;
}

.vs-brand-logo {
    height: 58px;
    width: auto;
    max-width: 75px;
    object-fit: contain;
    filter: drop-shadow(0 2px 5px rgba(0,0,0,0.4));
    transition: transform 0.2s ease;
}

.vs-brand-logo:hover {
    transform: scale(1.05);
}

.vschool-sidebar .nav-section-title {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--vs-gold-light);
    opacity: 0.85;
    text-transform: uppercase;
    margin-top: 1rem;
    margin-bottom: 0.35rem;
    padding-left: 0.6rem;
    white-space: nowrap;
}

.vschool-sidebar .nav-link {
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
    font-size: 0.82rem;
    padding: 0.5rem 0.7rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.vschool-sidebar .nav-link:hover {
    color: #FFFFFF;
    background-color: var(--vs-dark-hover);
}

.vschool-sidebar .nav-link.active {
    color: #FFFFFF;
    background: linear-gradient(90deg, var(--vs-dark-active) 0%, rgba(181, 148, 57, 0.25) 100%);
    border-left: 3px solid var(--vs-gold-light);
    font-weight: 600;
}

.vschool-sidebar .nav-link i {
    width: 18px;
    font-size: 0.9rem;
    margin-right: 0.5rem;
    color: rgba(226, 202, 79, 0.85);
}

.vschool-sidebar .nav-link.active i {
    color: var(--vs-gold-light);
}

.vschool-sidebar .nav-link .transition-icon,
.vschool-sidebar .nav-section-title .transition-icon {
    transition: transform 0.2s ease;
    width: auto !important;
    margin-right: 0 !important;
}

.vschool-sidebar .nav-link[aria-expanded="true"] .transition-icon {
    transform: rotate(180deg);
}

.vschool-sidebar .nav-section-title[aria-expanded="false"] .transition-icon {
    transform: rotate(-90deg);
}

.vschool-sidebar .nav-section-title[aria-expanded="true"] .transition-icon {
    transform: rotate(0deg);
}

/* Header & Top Bar - Compact */
.vschool-topbar {
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--vs-border-color);
    padding: 0.6rem 1.25rem;
}

.btn-sidebar-toggle {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background-color: #FFFFFF;
    border: 1px solid var(--vs-border-color);
    color: var(--vs-dark);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

.btn-sidebar-toggle:hover {
    background-color: var(--vs-dark);
    color: var(--vs-gold-light);
    border-color: var(--vs-dark);
}

.vschool-header-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--vs-dark) 0%, var(--vs-dark-hover) 100%);
    color: var(--vs-gold-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 3px 10px rgba(42, 24, 11, 0.15);
}

.badge-nien-khoa {
    background-color: #FFF9E6;
    color: var(--vs-gold-dark);
    border: 1px solid rgba(181, 148, 57, 0.3);
    font-weight: 600;
    font-size: 0.72rem;
    padding: 0.25rem 0.55rem;
    border-radius: 16px;
}

/* Button Custom Styles - Compact */
.btn-vs-primary {
    background: linear-gradient(135deg, var(--vs-gold-mid) 0%, var(--vs-gold-dark) 100%);
    color: #FFFFFF;
    font-weight: 600;
    font-size: 0.8rem;
    border: none;
    border-radius: 8px;
    padding: 0.4rem 1rem;
    box-shadow: 0 3px 10px rgba(156, 117, 40, 0.22);
    transition: all 0.2s ease;
}

.btn-vs-primary:hover {
    background: linear-gradient(135deg, var(--vs-gold-light) 0%, var(--vs-gold-mid) 100%);
    color: var(--vs-dark);
    box-shadow: 0 4px 14px rgba(226, 202, 79, 0.32);
}

.btn-vs-dark {
    background-color: var(--vs-dark);
    color: var(--vs-gold-light);
    font-weight: 600;
    font-size: 0.8rem;
    border: 1px solid rgba(226, 202, 79, 0.3);
    border-radius: 8px;
    padding: 0.4rem 0.9rem;
    transition: all 0.2s ease;
}

.btn-vs-dark:hover {
    background-color: var(--vs-dark-hover);
    color: #FFFFFF;
}

.btn-vs-outline {
    background-color: #FFFFFF;
    color: var(--vs-text-dark);
    border: 1px solid var(--vs-border-color);
    font-weight: 600;
    font-size: 0.8rem;
    border-radius: 8px;
    padding: 0.4rem 0.85rem;
    transition: all 0.2s ease;
}

.btn-vs-outline:hover {
    background-color: #F3EFE6;
    border-color: var(--vs-gold-mid);
}

/* Grade Filter Tabs - Compact */
.grade-tab-btn {
    border: none;
    text-decoration: none !important;
    background-color: #FFFFFF;
    color: var(--vs-text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    padding: 0.4rem 0.9rem;
    border-radius: 18px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.grade-tab-btn:hover {
    color: var(--vs-dark);
    background-color: #F3EFE6;
}

.grade-tab-btn.active {
    background-color: var(--vs-dark);
    color: var(--vs-gold-light);
    box-shadow: 0 3px 8px rgba(42, 24, 11, 0.18);
}

/* Premium VSCHOOL Main Subtabs Pills */
.vs-main-subtabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    border: 1px solid var(--vs-border-color);
    background-color: #FFFFFF;
    padding: 0.35rem;
    border-radius: 20px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.03);
    margin-bottom: 1.5rem;
}

.vs-main-subtabs .nav-item {
    margin-bottom: 0;
}

.vs-main-subtabs .nav-link {
    border: none !important;
    border-radius: 16px !important;
    padding: 0.55rem 1.1rem !important;
    color: var(--vs-text-muted) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    background: transparent !important;
}

.vs-main-subtabs .nav-link:hover {
    color: var(--vs-dark) !important;
    background-color: #F7F4EC !important;
}

.vs-main-subtabs .nav-link.active {
    background: linear-gradient(135deg, var(--vs-dark-sidebar) 0%, var(--vs-dark) 100%) !important;
    color: var(--vs-gold-light) !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 14px rgba(34, 18, 7, 0.25) !important;
    border: 1px solid rgba(226, 202, 79, 0.35) !important;
}

/* Class Card UI - Compact */
.class-card {
    background-color: #FFFFFF;
    border-radius: 14px;
    border: 1px solid var(--vs-border-color);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.03);
    transition: all 0.2 ease;
    overflow: hidden;
}

.class-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(42, 24, 11, 0.08);
    border-color: rgba(181, 148, 57, 0.4);
}

.class-card-header {
    padding: 1rem 1rem 0.6rem 1rem;
}

.tag-khoi {
    background-color: #F3EFE6;
    color: var(--vs-gold-dark);
    font-weight: 700;
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
}

.tag-phong {
    color: var(--vs-text-muted);
    font-size: 0.72rem;
    font-weight: 500;
}

.tag-do-tuoi {
    background-color: #FAF5E8;
    color: var(--vs-gold-mid);
    font-weight: 600;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 6px;
}

.class-card-title {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--vs-dark);
    margin-top: 0.4rem;
    margin-bottom: 0.6rem;
}

/* Teacher Avatar Box */
.teacher-info-box {
    background-color: #FAF8F5;
    border: 1px solid #F0EBE1;
    border-radius: 10px;
    padding: 0.6rem;
}

.teacher-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--vs-gold-light);
}

.btn-phone-call {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: #FFFFFF;
    border: 1px solid #E5E0D5;
    color: var(--vs-gold-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

.btn-phone-call:hover {
    background-color: var(--vs-gold-light);
    color: var(--vs-dark);
}

/* Progress bar & Badges */
.progress-siso {
    height: 6px;
    border-radius: 3px;
    background-color: #EFECE6;
    overflow: hidden;
}

.progress-siso-bar {
    background: linear-gradient(90deg, var(--vs-gold-mid) 0%, var(--vs-dark) 100%);
    border-radius: 3px;
}

.status-badge-medical {
    background-color: var(--vs-danger-bg);
    color: var(--vs-danger-text);
    font-weight: 600;
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.status-badge-bus {
    background-color: var(--vs-info-bg);
    color: var(--vs-info-text);
    font-weight: 600;
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.status-badge-present {
    background-color: var(--vs-success-bg);
    color: var(--vs-success-text);
    font-weight: 600;
    font-size: 0.72rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

/* ==========================================================================
   VSCHOOL STANDARD CLASS DETAIL & TABLE FORM SYSTEM (COMPACT SCALE 75-80%)
   ========================================================================== */

/* Dark Luxury Header Banner for Detail Pages - Compact */
.vs-detail-header-banner {
    background: linear-gradient(135deg, var(--vs-dark) 0%, #3B2312 100%);
    color: #FFFFFF;
    border-radius: 16px;
    padding: 1.1rem 1.35rem;
    box-shadow: 0 6px 18px rgba(42, 24, 11, 0.18);
    border: 1px solid rgba(226, 202, 79, 0.25);
}

.vs-detail-header-banner .badge-pill-header {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--vs-gold-light);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 16px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(226, 202, 79, 0.3);
}

.vs-detail-header-banner .stat-box {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(226, 202, 79, 0.2);
    border-radius: 10px;
    padding: 0.35rem 0.75rem;
    text-align: center;
    backdrop-filter: blur(4px);
}

.vs-detail-header-banner .stat-box-title {
    font-size: 0.58rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--vs-gold-light);
}

.vs-detail-header-banner .stat-box-value {
    font-size: 0.95rem;
    font-weight: 800;
    color: #FFFFFF;
}

/* Navigation Sub-Tabs - Compact */
.vs-sub-tab-btn {
    border: none;
    background-color: #FFFFFF;
    color: var(--vs-text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    padding: 0.45rem 0.95rem;
    border-radius: 24px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.vs-sub-tab-btn:hover {
    color: var(--vs-dark);
    background-color: #F3EFE6;
}

.vs-sub-tab-btn.active {
    background-color: var(--vs-dark);
    color: var(--vs-gold-light);
    box-shadow: 0 3px 10px rgba(42, 24, 11, 0.22);
}

/* Bulk Action Dark Banner - Compact */
.vs-bulk-banner {
    background: linear-gradient(90deg, var(--vs-dark-sidebar) 0%, var(--vs-dark) 100%);
    color: #FFFFFF;
    border-radius: 12px;
    padding: 0.6rem 1rem;
    box-shadow: 0 4px 14px rgba(34, 18, 7, 0.2);
    border: 1px solid rgba(226, 202, 79, 0.2);
}

.vs-bulk-banner .btn-bulk-accent {
    background: linear-gradient(135deg, #059669 0%, #10B981 100%);
    color: #FFFFFF;
    font-weight: 600;
    font-size: 0.75rem;
    border: none;
    border-radius: 16px;
    padding: 0.3rem 0.8rem;
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

.vs-bulk-banner .btn-bulk-secondary {
    background-color: var(--vs-gold-dark);
    color: #FFFFFF;
    font-weight: 600;
    font-size: 0.75rem;
    border: none;
    border-radius: 16px;
    padding: 0.3rem 0.8rem;
}

/* VSCHOOL Standard Data Table - Compact Dense Layout */
.vs-table-container {
    background-color: #FFFFFF;
    border-radius: 14px;
    border: 1px solid var(--vs-border-color);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.03);
    overflow-x: auto !important;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

.vs-table {
    width: 100%;
    min-width: 650px;
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
    white-space: nowrap;
}

.vs-table th {
    background-color: #FAF8F5;
    color: var(--vs-text-muted);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--vs-border-color);
    white-space: nowrap;
}

.vs-table td {
    padding: 0.65rem 0.85rem;
    vertical-align: middle;
    border-bottom: 1px solid #F5F1EA;
    font-size: 0.8rem;
    background-color: #FFFFFF;
    transition: background-color 0.15s ease;
    white-space: nowrap;
}

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

.vs-table tr:hover td {
    background-color: #FAF6EE;
}

/* Sticky Last Column for Table Actions / Summary */
.vs-table th:last-child,
.vs-table td:last-child,
.table-responsive .table th:last-child,
.table-responsive .table td:last-child,
.table-responsive .vs-table th:last-child,
.table-responsive .vs-table td:last-child,
.vs-table-container table th:last-child,
.vs-table-container table td:last-child {
    position: sticky !important;
    right: 0 !important;
    z-index: 5 !important;
    box-shadow: -3px 0 8px rgba(0, 0, 0, 0.06) !important;
}

.vs-table thead th:last-child,
.table-responsive .table thead th:last-child,
.table-responsive .vs-table thead th:last-child,
.vs-table-container table thead th:last-child {
    position: sticky !important;
    right: 0 !important;
    top: 0 !important;
    background-color: inherit !important;
    color: inherit !important;
    z-index: 12 !important;
}

.vs-table td:last-child,
.table-responsive .table tbody td:last-child,
.table-responsive .vs-table tbody td:last-child,
.vs-table-container table tbody td:last-child {
    background-color: #FFFFFF !important;
}

.vs-table tr:hover td:last-child,
.table-responsive .table tr:hover td:last-child,
.table-responsive .vs-table tr:hover td:last-child,
.vs-table-container table tr:hover td:last-child {
    background-color: #FAF6EE !important;
}

/* Modal Fee Tables - Pure Vertical Sticky Without Right Collision */
.modal-fee-table th:last-child,
.modal-fee-table td:last-child {
    position: static !important;
    box-shadow: none !important;
}

.modal-fee-table thead th {
    position: sticky !important;
    top: 0 !important;
    z-index: 10 !important;
    background-color: #f8f9fa !important;
}

/* Table Specific Badges - Compact */
.vs-student-code-badge {
    background-color: #F3EFE6;
    color: var(--vs-dark);
    font-family: monospace;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.4rem;
    border-radius: 5px;
    margin-right: 0.4rem;
    border: 1px solid #E5DFD3;
}

.vs-class-badge {
    background-color: #FAF5E8;
    color: var(--vs-gold-dark);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 14px;
    border: 1px solid rgba(181, 148, 57, 0.25);
    display: inline-block;
}

.vs-allergy-badge {
    background-color: #FEE2E2;
    color: #DC2626;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    border: 1px solid #FCA5A5;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.vs-status-active {
    background-color: #DCFCE7;
    color: #15803D;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 16px;
}

.vs-action-icon-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: #FAF8F5;
    border: 1px solid var(--vs-border-color);
    color: var(--vs-text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: all 0.2s ease;
    text-decoration: none;
}

.vs-action-icon-btn:hover {
    background-color: var(--vs-dark);
    color: var(--vs-gold-light);
    border-color: var(--vs-dark);
}

/* ==========================================================================
   VSCHOOL CUSTOM PAGINATION SYSTEM
   ========================================================================== */
.vs-pagination-container {
    padding: 0.85rem 1.1rem;
    background-color: #FFFFFF;
    border-top: 1px solid var(--vs-border-color);
}

.pagination {
    margin-bottom: 0;
    gap: 0.25rem;
}

.pagination .page-item .page-link {
    color: var(--vs-dark);
    background-color: #FFFFFF;
    border: 1px solid var(--vs-border-color);
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.pagination .page-item .page-link:hover {
    background-color: #F3EFE6;
    color: var(--vs-dark);
    border-color: var(--vs-gold-mid);
}

.pagination .page-item.active .page-link {
    background-color: var(--vs-dark);
    border-color: var(--vs-dark);
    color: var(--vs-gold-light);
    box-shadow: 0 3px 8px rgba(42, 24, 11, 0.22);
}

.pagination .page-item.disabled .page-link {
    color: var(--vs-text-muted);
    opacity: 0.5;
    background-color: #FAF8F5;
    border-color: var(--vs-border-color);
}

/* Hide redundant Laravel default "Showing X to Y results" text in pagination nav */
.vs-pagination-container nav > div:first-child,
.vs-pagination-container nav p,
.vs-pagination-box nav > div:first-child,
.vs-pagination-box nav p {
    display: none !important;
}

/* Bootstrap Modal Backdrop */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1040;
}

#sidebar-backdrop {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100% !important;
    height: 100dvh !important;
    background: rgba(0, 0, 0, 0.65) !important;
    backdrop-filter: blur(4px) !important;
    z-index: 1045 !important;
    transition: opacity 0.25s ease !important;
}

@media (max-width: 767.98px) {
    html {
        font-size: 85% !important;
    }

    /* ── Sidebar: off-canvas overlay ── */
    .vschool-sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        right: auto !important;
        height: 100% !important;
        height: 100dvh !important;
        height: 100vh !important;
        max-height: none !important;
        width: 285px !important;
        max-width: 85vw !important;
        z-index: 1050 !important;
        transform: translateX(-105%) !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s linear !important;
        box-shadow: none !important;
        visibility: hidden !important;
        border-right: none !important;
    }
    
    .vschool-sidebar.mobile-show {
        transform: translateX(0) !important;
        box-shadow: 6px 0 30px rgba(0, 0, 0, 0.6) !important;
        visibility: visible !important;
    }

    /* ── Topbar ── */
    .vschool-topbar {
        padding: 0.5rem 0.75rem !important;
        gap: 0.5rem;
    }

    .vschool-topbar .input-group {
        max-width: 200px !important;
    }

    .vschool-topbar .input-group .input-group-text {
        display: none !important;
    }

    .vschool-topbar .input-group .form-select {
        border-radius: 20px !important;
        font-size: 0.75rem !important;
    }

    /* ── Main content area: prevent horizontal overflow ── */
    .vschool-app-layout {
        flex-direction: column !important;
    }

    main.flex-grow-1,
    .vschool-app-layout > main {
        margin-left: 0 !important;
        width: 100% !important;
        min-width: 0 !important;
    }

    .container-fluid {
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
        max-width: 100vw !important;
        overflow-x: hidden !important;
    }

    /* ── Page headers: stack title and actions vertically ── */
    .d-flex.flex-wrap.align-items-center.justify-content-between {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.75rem !important;
    }

    /* ── Stat cards row: 2-column grid on mobile ── */
    .row.g-3.mb-4 > [class*="col-xl-3"],
    .row.g-3.mb-4 > [class*="col-xl-4"] {
        flex: 0 0 50% !important;
        max-width: 50% !important;
    }

    .row.g-3.mb-4 > [class*="col-xl-3"] .card,
    .row.g-3.mb-4 > [class*="col-xl-4"] .card {
        padding: 0.65rem !important;
    }

    .row.g-3.mb-4 > [class*="col-xl-3"] .fs-4,
    .row.g-3.mb-4 > [class*="col-xl-4"] .fs-4 {
        font-size: 1.1rem !important;
    }

    .row.g-3.mb-4 > [class*="col-xl-3"] .wh-48,
    .row.g-3.mb-4 > [class*="col-xl-4"] .wh-48 {
        width: 36px !important;
        height: 36px !important;
        font-size: 1rem !important;
    }

    /* ── Tables: force horizontal scroll, remove sticky last-column ── */
    .table-responsive,
    .vs-table-container {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        max-width: 100% !important;
    }

    .vs-table th:last-child,
    .vs-table td:last-child,
    .table-responsive .table th:last-child,
    .table-responsive .table td:last-child,
    .vs-table-container table th:last-child,
    .vs-table-container table td:last-child {
        position: relative !important;
        box-shadow: none !important;
    }

    /* ── Search bar / filter bar: stack & full width ── */
    form[style*="min-width: 3"],
    form[style*="min-width: 2"],
    .input-group[style*="min-width"] {
        min-width: 0 !important;
        width: 100% !important;
    }

    .d-flex.align-items-center.gap-2 > form,
    .d-flex.align-items-center.gap-3 > form {
        width: 100% !important;
    }

    /* ── Buttons & action bars: wrap on mobile ── */
    .d-flex.gap-2,
    .d-flex.gap-3 {
        flex-wrap: wrap !important;
    }

    .btn {
        white-space: nowrap !important;
    }

    /* ── Grade filter tab pills: horizontal scroll ── */
    .d-flex.gap-1.flex-wrap,
    .d-flex.gap-2.flex-wrap {
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        padding-bottom: 4px !important;
        scrollbar-width: none !important;
    }

    .d-flex.gap-1.flex-wrap::-webkit-scrollbar,
    .d-flex.gap-2.flex-wrap::-webkit-scrollbar {
        display: none !important;
    }

    .grade-tab-btn,
    .vs-sub-tab-btn {
        flex-shrink: 0 !important;
        font-size: 0.72rem !important;
        padding: 0.35rem 0.65rem !important;
    }

    /* ── Sub-tab pills bar: scrollable ── */
    .vs-main-subtabs {
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: none !important;
        padding: 0.25rem !important;
    }

    .vs-main-subtabs::-webkit-scrollbar {
        display: none !important;
    }

    .vs-main-subtabs .nav-link {
        flex-shrink: 0 !important;
        font-size: 0.75rem !important;
        padding: 0.4rem 0.75rem !important;
    }

    /* ── Modals: nearly full-screen on mobile ── */
    .modal-dialog {
        margin: 0.5rem !important;
        max-width: calc(100vw - 1rem) !important;
    }

    .modal-dialog.modal-lg,
    .modal-dialog.modal-xl {
        max-width: calc(100vw - 1rem) !important;
    }

    .modal-body {
        padding: 1rem !important;
        max-height: 70vh !important;
        overflow-y: auto !important;
    }

    .modal-body .row.g-3 > [class*="col-md-"] {
        flex: 0 0 100% !important;
        max-width: 100% !important;
    }

    .modal-body .row.g-3 > .col-md-3,
    .modal-body .row.g-3 > .col-md-4 {
        flex: 0 0 50% !important;
        max-width: 50% !important;
    }

    .modal-header {
        padding: 0.75rem 1rem !important;
    }

    .modal-footer {
        padding: 0.5rem 1rem !important;
    }

    /* ── Detail header banner: compact ── */
    .vs-detail-header-banner {
        padding: 0.85rem 0.85rem !important;
        border-radius: 12px !important;
    }

    .vs-detail-header-banner .stat-box {
        padding: 0.25rem 0.45rem !important;
    }

    /* ── Card grids ── */
    .class-card {
        border-radius: 10px !important;
    }

    /* ── Parent Portal specific: stats row ── */
    .row.g-3.mb-3 > [class*="col-6"] {
        padding-left: 4px !important;
        padding-right: 4px !important;
    }

    /* ── Dashboard: calendar & chart cards ── */
    .card.rounded-4 {
        border-radius: 12px !important;
    }

    /* ── Text scaling ── */
    h3, .h3 {
        font-size: 1.15rem !important;
    }

    h4, .h4 {
        font-size: 1rem !important;
    }

    h5, .h5 {
        font-size: 0.9rem !important;
    }

    /* ── Attendance segmented buttons ── */
    .vs-att-group {
        flex-wrap: wrap !important;
        gap: 0.25rem !important;
    }

    .vs-att-btn {
        font-size: 0.68rem !important;
        padding: 0.25rem 0.5rem !important;
    }

    .vs-att-row {
        padding: 0.6rem 0.75rem !important;
    }

    /* ── Bulk banner ── */
    .vs-bulk-banner {
        flex-direction: column !important;
        gap: 0.5rem !important;
        text-align: center !important;
        padding: 0.75rem !important;
    }

    /* ── Pagination: compact ── */
    .vs-pagination-container {
        padding: 0.5rem 0.75rem !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
        text-align: center !important;
    }

    .pagination .page-item .page-link {
        padding: 0.25rem 0.5rem !important;
        font-size: 0.72rem !important;
    }

    /* ── Modal backdrop fix for mobile (no zoom scaling) ── */
    .modal-backdrop {
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100% !important;
    }

    /* ── Fixed width utility helpers on mobile ── */
    [style*="min-width: 320px"],
    [style*="min-width: 300px"],
    [style*="min-width: 280px"],
    [style*="min-width: 260px"],
    [style*="min-width: 250px"],
    [style*="min-width: 240px"],
    [style*="min-width: 220px"],
    [style*="min-width: 180px"] {
        min-width: 0 !important;
        width: 100% !important;
    }

    /* ── Map containers in modals ── */
    .campus-map-container {
        height: 180px !important;
    }

    /* ── Finance: collectable items in collect-tuition modal ── */
    .fee-checkbox-group .d-flex.align-items-center.justify-content-between {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.35rem !important;
    }

    /* ── Notification dropdown ── */
    .dropdown-menu[style*="width: 320px"] {
        width: calc(100vw - 2rem) !important;
        max-width: 320px !important;
    }

    /* ── Classes/show detail: sub-tabs ── */
    .d-flex.flex-wrap.gap-2.mb-3 {
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        padding-bottom: 4px !important;
    }
}

/* Small phones (< 400px) - extra compact */
@media (max-width: 399.98px) {
    html {
        font-size: 81.25% !important;
    }

    .row.g-3.mb-4 > [class*="col-xl-3"],
    .row.g-3.mb-4 > [class*="col-xl-4"] {
        flex: 0 0 100% !important;
        max-width: 100% !important;
    }

    .modal-body .row.g-3 > .col-md-3,
    .modal-body .row.g-3 > .col-md-4 {
        flex: 0 0 100% !important;
        max-width: 100% !important;
    }

    .vs-detail-header-banner .d-flex.gap-2 {
        flex-direction: column !important;
    }
}

/* ==========================================================================
   VSCHOOL ATTENDANCE SEGMENTED BUTTON SYSTEM
   ========================================================================== */
.vs-att-group {
    display: inline-flex;
    gap: 0.35rem;
    background-color: #F7F5F0;
    padding: 0.25rem;
    border-radius: 24px;
    border: 1px solid var(--vs-border-color);
}

.vs-att-btn {
    border: none;
    background: transparent;
    color: var(--vs-text-muted);
    font-weight: 600;
    font-size: 0.76rem;
    padding: 0.35rem 0.8rem;
    border-radius: 18px;
    transition: all 0.2s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.vs-att-btn:hover {
    color: var(--vs-dark);
    background-color: rgba(255,255,255,0.6);
}

.vs-att-btn-present.active {
    background-color: #10B981 !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.vs-att-btn-excused.active {
    background-color: #F59E0B !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.vs-att-btn-unexcused.active {
    background-color: #EF4444 !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.vs-att-row {
    padding: 0.85rem 1.1rem;
    border-bottom: 1px solid #F5F1EA;
    transition: background-color 0.15s ease;
}

.vs-att-row:last-child {
    border-bottom: none;
}

.vs-att-row:hover {
    background-color: #FAF6EE;
}

/* Fix Tom-Select dropdown z-index inside Bootstrap Modal */
.ts-dropdown {
    z-index: 1060 !important;
}

.ts-wrapper .ts-control {
    border-radius: 8px !important;
    padding: 0.45rem 0.75rem !important;
}

/* ==========================================================================
   GLOBAL FLOATING TOAST NOTIFICATION SYSTEM
   ========================================================================== */
@keyframes slideDownToast {
    0% {
        opacity: 0;
        transform: translate(-50%, -40px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
    }
}

@keyframes toastProgress {
    0% {
        width: 100%;
    }
    100% {
        width: 0%;
    }
}