/* =============================================
   HVTC POSTGRADUATE - MAIN STYLESHEET
   Modern, modular CSS architecture
============================================= */

/* ========== IMPORT FOUNDATION ========== */
@import url('./foundation/variables.css');
@import url('./foundation/typography.css');

/* ========== IMPORT COMPONENTS ========== */
@import url('./components/buttons.css');
@import url('./components/cards.css');
@import url('./components/forms.css');
@import url('./components/toast.css');
@import url('./components/badges-progress.css');

/* ================================
   GLOBAL RESETS & BASE
================================ */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--hvtc-bg-body);
    min-height: 100vh;
}

/* ================================
   LEGACY COMPATIBILITY
   Keep existing selectors for backward compatibility
================================ */

/* ================================
   GLOBAL FONTS
================================ */
:root, html, body,
h1, h2, h3, h4, h5, h6,
p, a, span, div,
label, input, button, select, textarea,
.form-control, .btn, .login-box-msg,
.card, .card-body, .card-header, .nav-link,
.input-group-text {
    font-family: 'Source Sans Pro', sans-serif !important;
}

/* ================================
   SIDEBAR MENU DYNAMIC
   Enhanced parent-child hierarchy and active states
================================ */

/* Color Variables for Menu */
:root {
    --menu-active-color: #20c997;           /* Teal/Green - phù hợp với theme */
    --menu-active-bg: rgba(32, 201, 151, 0.15);
    --menu-hover-bg: rgba(255, 255, 255, 0.1);
    --menu-parent-bg: rgba(0, 0, 0, 0.2);
    --menu-child-bg: rgba(0, 0, 0, 0.25);
}

/* Sidebar menu must be vertical (DON'T override sidebar position - let AdminLTE handle it) */
.sidebar-menu {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
}

/* Each nav-item in sidebar */
.sidebar-menu .nav-item {
    width: 100% !important;
}

/* ===== MENU CHA (PARENT) ===== */
/* Menu cha có background đậm hơn */
.sidebar-menu > .nav-item > .nav-link {
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    cursor: pointer !important;
    font-weight: 600 !important;
    background-color: var(--menu-parent-bg) !important;
    border-left: 3px solid transparent !important;
    transition: all 0.3s ease !important;
}

/* Menu cha hover */
.sidebar-menu > .nav-item > .nav-link:hover {
    background-color: var(--menu-hover-bg) !important;
    border-left-color: rgba(255, 255, 255, 0.5) !important;
}

/* Menu cha active/open */
.sidebar-menu > .nav-item.menu-open > .nav-link,
.sidebar-menu > .nav-item > .nav-link.active {
    background-color: var(--menu-hover-bg) !important;
    border-left-color: var(--menu-active-color) !important;
}

/* Icon menu cha lớn hơn */
.sidebar-menu > .nav-item > .nav-link .nav-icon {
    font-size: 1.1rem !important;
    margin-right: 0.75rem !important;
    min-width: 1.5rem !important;
}

/* ===== MENU CON (CHILD) ===== */
/* Submenu container - thụt vào và có background khác */
.nav-treeview {
    display: none;
    padding-left: 0 !important;
    background: var(--menu-child-bg) !important;
    border-left: 2px solid rgba(255, 255, 255, 0.1) !important;
    margin-left: 1rem !important;
}

/* When menu-open, show submenu */
.nav-item.menu-open > .nav-treeview {
    display: block !important;
}

/* Menu con styling */
.nav-treeview .nav-item .nav-link {
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    padding: 0.5rem 1rem 0.5rem 1.5rem !important;
    cursor: pointer !important;
    font-weight: 400 !important;
    font-size: 0.9rem !important;
    border-left: 3px solid transparent !important;
    transition: all 0.2s ease !important;
}

/* Icon menu con nhỏ hơn */
.nav-treeview .nav-item .nav-link .nav-icon {
    font-size: 0.85rem !important;
    margin-right: 0.5rem !important;
    min-width: 1.2rem !important;
    opacity: 0.7 !important;
}

/* Menu con hover */
.nav-treeview .nav-item .nav-link:hover {
    background-color: var(--menu-hover-bg) !important;
    border-left-color: rgba(255, 255, 255, 0.3) !important;
    padding-left: 1.75rem !important;
}

/* Menu con ACTIVE - Nổi bật với màu xanh */
.nav-treeview .nav-item .nav-link.active {
    background: linear-gradient(90deg, var(--menu-active-bg) 0%, transparent 100%) !important;
    border-left-color: var(--menu-active-color) !important;
    font-weight: 600 !important;
    color: #ffffff !important;
    box-shadow: inset 0 0 10px rgba(32, 201, 151, 0.15) !important;
}

.nav-treeview .nav-item .nav-link.active .nav-icon {
    color: var(--menu-active-color) !important;
    opacity: 1 !important;
}

/* ===== ARROW ICON ===== */
/* Arrow icon rotation và vị trí */
.nav-arrow {
    margin-left: auto !important;
    transition: transform 0.3s ease !important;
    font-size: 0.8rem !important;
}

.nav-item.menu-open > .nav-link .nav-arrow {
    transform: rotate(90deg) !important;
    color: var(--menu-active-color) !important;
}

/* ===== SPACING & BORDERS ===== */
/* Khoảng cách giữa menu cha */
.sidebar-menu > .nav-item {
    margin-bottom: 2px !important;
}

/* Khoảng cách giữa menu con */
.nav-treeview .nav-item {
    margin-bottom: 1px !important;
}

/* ===== TEXT STYLING ===== */
/* Text menu cha */
.sidebar-menu > .nav-item > .nav-link p {
    margin: 0 !important;
    flex: 1 !important;
    font-size: 0.95rem !important;
}

/* Text menu con */
.nav-treeview .nav-item .nav-link p {
    margin: 0 !important;
    flex: 1 !important;
    line-height: 1.4 !important;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar-menu > .nav-item > .nav-link {
        padding: 0.6rem 0.8rem !important;
    }

    .nav-treeview .nav-item .nav-link {
        padding: 0.4rem 0.8rem 0.4rem 1.2rem !important;
    }
}

/* ====== GLASS CARD – PREMIUM VERSION ====== */
.glass-card {
    background: rgba(255, 255, 255, 0.7) !important;
    backdrop-filter: blur(var(--blur-lg)) !important;
    -webkit-backdrop-filter: blur(var(--blur-lg)) !important;
    border: 1px solid rgba(255, 255, 255, 0.4) !important;
    border-radius: var(--radius-xl) !important;
    box-shadow: var(--shadow-md), 0 2px 8px rgba(0, 108, 110, 0.08) !important;
    padding: var(--space-lg) !important;
    transition: all var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 4px 16px rgba(0, 108, 110, 0.12) !important;
}

/* ================================
   SIDEBAR (HVTC - GREEN THEME)
================================ */
.app-sidebar[data-bs-theme="dark"] {
    background: linear-gradient(180deg, var(--hvtc-primary) 0%, var(--hvtc-primary-dark) 100%) !important;
    color: var(--hvtc-white) !important;
}

.app-sidebar[data-bs-theme="dark"] .nav-link,
.app-sidebar[data-bs-theme="dark"] .nav-header,
.app-sidebar[data-bs-theme="dark"] .brand-text,
.app-sidebar[data-bs-theme="dark"] .nav-icon {
    color: var(--hvtc-white) !important;
}

.app-sidebar[data-bs-theme="dark"] .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.15) !important;
    transform: translateX(4px);
    transition: all var(--transition-base);
}

.app-sidebar[data-bs-theme="dark"] .nav-link.active {
    background-color: rgba(255, 255, 255, 0.25) !important;
    position: relative;
}

.app-sidebar[data-bs-theme="dark"] .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--hvtc-accent);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: scaleY(0);
    }
    to {
        transform: scaleY(1);
    }
}

/* SIDEBAR BRAND LOGO */
.app-sidebar .sidebar-brand,
.app-sidebar .sidebar-brand .brand-link,
.app-sidebar .brand-link {
    height: 90px !important;
    min-height: 90px !important;
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: transparent !important;
}

.app-sidebar .brand-link > img.brand-image,
.app-sidebar .sidebar-brand img.brand-image,
.brand-link img.brand-image {
    width: 72px !important;
    height: 72px !important;
    max-width: 72px !important;
    max-height: 72px !important;
    padding: 6px !important;
    border-radius: 50% !important;
    background: var(--hvtc-white) !important;
    object-fit: contain !important;
    box-shadow: var(--shadow-md) !important;
    display: inline-block !important;
    vertical-align: middle !important;
    transition: all var(--transition-base);
}

.app-sidebar .brand-link > img.brand-image:hover {
    transform: rotate(360deg) scale(1.05);
    transition: transform 0.6s ease;
}

/* ================================
   NAVBAR USER SECTION - ENHANCED
================================ */
.user-toggle {
    display: flex !important;
    align-items: center !important;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.user-toggle:hover {
    background: rgba(0, 108, 110, 0.08);
}

.user-icon-wrapper {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--hvtc-primary) 0%, var(--hvtc-primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-primary-sm);
    transition: all var(--transition-base);
}

.user-toggle:hover .user-icon-wrapper {
    transform: scale(1.1);
}

.user-icon {
    color: var(--hvtc-white) !important;
    font-size: 18px !important;
}

.user-name {
    color: var(--hvtc-text-primary) !important;
    font-weight: var(--font-semibold);
}

/* User dropdown - Enhanced */
.user-dropdown-menu {
    min-width: 240px !important;
    padding: var(--space-sm) 0 !important;
    border-radius: var(--radius-lg) !important;
    border: 1px solid var(--hvtc-border-light) !important;
    background: var(--hvtc-white) !important;
    box-shadow: var(--shadow-xl) !important;
    animation: dropdownFadeIn 0.2s ease-out;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-dropdown-menu .dropdown-item {
    padding: var(--space-md) var(--space-lg) !important;
    font-size: var(--text-md) !important;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transition: all var(--transition-fast);
}

.user-dropdown-menu .dropdown-item:hover {
    background: rgba(0, 108, 110, 0.08) !important;
    transform: translateX(4px);
}

.user-menu .dropdown-menu.user-dropdown-menu {
    position: absolute !important;
    inset: unset !important;
    top: calc(100% + 8px) !important;
    right: 0 !important;
    z-index: var(--z-dropdown) !important;
}

/* ================================
   SECTION TITLE - ENHANCED
================================ */
.section-title {
    font-weight: var(--font-bold);
    font-size: var(--text-2xl);
    border-left: 4px solid var(--hvtc-primary);
    padding-left: var(--space-md);
    margin-bottom: var(--space-lg);
    margin-top: var(--space-md);
    color: var(--hvtc-text-primary);
    position: relative;
    animation: fadeInLeft 0.5s ease-out;
}

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

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 60px;
    height: 2px;
    background: var(--hvtc-accent);
}

/* ================================
   REUSABLE ELEMENTS (GLOBAL)
================================ */

/* Universal fade animation */
.fade-animation {
    animation: fadeIn .25s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section title (dùng cho form block) */
.section-title {
    font-weight: 700;
    font-size: 18px;
    border-left: 4px solid #006C6E;
    padding-left: 10px;
    margin-bottom: 15px;
    margin-top: 10px;
}

/* Reusable list-style for tab/menu */
.list-item-selectable {
    cursor: pointer;
    padding: 14px 18px;
    font-size: 15px;
    border: none !important;
    transition: 0.2s ease;
}

    .list-item-selectable:hover {
        background: rgba(0, 108, 110, 0.1) !important;
        color: #006C6E !important;
    }

.list-item-active {
    background: #006C6E !important;
    color: #fff !important;
    font-weight: 600 !important;
}


/* ============================
   FORM CONTROL TỐI ƯU UI
============================ */
.form-control,
.form-select {
    height: 44px !important;
    padding: 10px 14px !important;
    font-size: var(--text-md) !important;
    border-radius: var(--radius-lg) !important;
    border: 2px solid var(--hvtc-border-light) !important;
    transition: all var(--transition-base);
    background-color: var(--hvtc-white) !important;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--hvtc-primary) !important;
    box-shadow: 0 0 0 4px rgba(0, 108, 110, 0.1) !important;
    transform: translateY(-1px);
}

/* Input placeholder – nhìn dịu */
::placeholder {
    color: var(--hvtc-text-tertiary) !important;
    opacity: 1;
}

/* Select arrow không bị lệch */
.form-select {
    background-position: right 14px center !important;
}


/* BUTTON – nhỏ gọn, thanh thoát */
.btn {
    border-radius: var(--radius-lg) !important;
    padding: 6px 14px !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    min-height: 40px !important;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Primary */
.btn-primary {
    background: #0c7378 !important;
    border-color: #0c7378 !important;
}

    .btn-primary:hover {
        background: #095d61 !important;
        border-color: #095d61 !important;
    }

/* Outline */
.btn-outline-primary {
    border-color: #0c7378 !important;
    color: #0c7378 !important;
}

    .btn-outline-primary:hover {
        background: #0c7378 !important;
        color: #fff !important;
    }



/* =====================================
   CUSTOM TABLE - ENHANCED
===================================== */
.custom-table {
    width: 100%;
    border-collapse: collapse !important;
    background: var(--hvtc-white);
    font-size: var(--text-sm);
    border: 1px solid var(--hvtc-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.custom-table thead th {
    background: linear-gradient(135deg, var(--hvtc-primary) 0%, var(--hvtc-primary-light) 100%) !important;
    color: var(--hvtc-white) !important;
    padding: 12px 16px;
    text-align: center;
    font-weight: var(--font-semibold);
    border: none !important;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.custom-table tbody td {
    padding: 12px 16px;
    border: 1px solid var(--hvtc-border-light) !important;
    vertical-align: middle;
    transition: all var(--transition-fast);
}

.custom-table tbody tr:nth-child(even) {
    background: var(--hvtc-gray-50);
}

.custom-table tbody tr:hover {
    background: rgba(0, 108, 110, 0.05) !important;
    transform: scale(1.001);
}

/* ========================= */
/* DATATABLES - ENHANCED */
/* ========================= */
table.dataTable thead th {
    background: linear-gradient(135deg, var(--hvtc-primary) 0%, var(--hvtc-primary-light) 100%) !important;
    color: var(--hvtc-white) !important;
    font-weight: var(--font-semibold);
    text-align: center;
    vertical-align: middle;
    border: none !important;
    padding: 12px 10px !important;
}

table.dataTable thead th:first-child {
    border-top-left-radius: var(--radius-md);
}

table.dataTable thead th:last-child {
    border-top-right-radius: var(--radius-md);
}

table.dataTable tbody tr {
    transition: all var(--transition-fast);
}

table.dataTable tbody tr:hover {
    background-color: rgba(0, 108, 110, 0.06) !important;
    cursor: pointer;
}

table.dataTable tbody tr:hover td {
    color: var(--hvtc-primary-dark);
    font-weight: var(--font-medium);
}

/* ========================= */
/* PAGINATION - MODERN */
/* ========================= */
.dataTables_wrapper .dataTables_paginate {
    margin-top: var(--space-md);
    display: flex !important;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-xs);
    flex-wrap: nowrap;
    font-size: var(--text-sm);
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    min-width: 36px !important;
    height: 36px !important;
    line-height: normal !important;
    border-radius: var(--radius-md) !important;
    border: 2px solid var(--hvtc-border-light) !important;
    padding: 6px 12px !important;
    margin: 0 !important;
    background: var(--hvtc-white) !important;
    color: var(--hvtc-text-primary) !important;
    font-weight: var(--font-medium);
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--hvtc-primary) !important;
    color: var(--hvtc-white) !important;
    border-color: var(--hvtc-primary) !important;
    transform: translateY(-1px);
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--hvtc-primary) !important;
    color: var(--hvtc-white) !important;
    border-color: var(--hvtc-primary) !important;
    font-weight: var(--font-bold);
    box-shadow: var(--shadow-primary-sm);
}

.dataTables_wrapper .dataTables_paginate .paginate_button.disabled {
    color: var(--hvtc-text-tertiary) !important;
    background: var(--hvtc-gray-100) !important;
    border-color: var(--hvtc-border-light) !important;
    cursor: not-allowed !important;
    opacity: 0.5;
}

/* ===================================== */
/* FIX TRIỆT ĐỂ CURRENT PAGE – KHÔNG CÒN XANH DƯƠNG */
/* Target đúng Bootstrap 5 */
/* ===================================== */

.dataTables_wrapper .pagination .page-item.active .page-link,
.dataTables_wrapper .pagination .page-item.active .page-link:hover,
.dataTables_wrapper .pagination .page-item.active .page-link:focus,
.dataTables_wrapper .pagination .page-item.active .page-link:active {
    background-color: #0b6e6b !important; /* ✅ xanh nav đậm */
    border-color: #0b6e6b !important;
    color: #ffffff !important;
    font-weight: 700 !important;
    box-shadow: 0 2px 6px rgba(11, 110, 107, 0.45) !important;
}
/*Breadcrumb*/
.page-header {
    background: #ffffff;
    padding: 16px 18px;
    border-radius: 10px;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.06);
    border-left: 4px solid #0d6efd;
}

.page-title {
    font-weight: 600;
    font-size: 18px;
    color: #0d6efd;
}

.page-header .breadcrumb {
    margin-bottom: 0;
    background: transparent;
    font-size: 14px;
}

    .page-header .breadcrumb a {
        text-decoration: none;
    }
.ts-card {
    background: #ffffff;
    border-radius: 18px;
    padding: 28px;
    border: 1px solid rgba(2,125,130,0.25);
    box-shadow: 0 18px 40px rgba(2,125,130,0.12);
}


/* Select2 — đồng bộ với form-select Bootstrap */
.select2-container--default .select2-selection--single,
.select2-container--default .select2-selection--multiple {
    min-height: 44px !important;
    border-radius: var(--radius-lg) !important;
    border: 2px solid var(--hvtc-border-light) !important;
    background: var(--hvtc-white) !important;
    padding: 8px 12px !important;
    display: flex !important;
    align-items: center !important;
}

/* Placeholder */
.select2-container--default .select2-selection__placeholder {
    color: #94a5a5 !important;
}

/* Focus */
.select2-container--default.select2-container--focus .select2-selection--single,
.select2-container--default.select2-container--focus .select2-selection--multiple {
    border-color: var(--hvtc-primary) !important;
    box-shadow: 0 0 0 4px rgba(2,125,130,0.15) !important;
}

/* Text & tags */
.select2-container--default .select2-selection__rendered {
    color: #073e3e !important;
    font-size: 14px !important;
}

/* Tag style — multiple */
.select2-container--default .select2-selection__choice {
    background: #0c7378 !important;
    color: white !important;
    border: none !important;
    padding: 4px 6px !important;
    border-radius: 6px !important;
}

/* Dropdown */
.select2-dropdown {
    border-radius: var(--radius-lg) !important;
    border: 2px solid var(--hvtc-border-light) !important;
    box-shadow: var(--shadow-xl) !important;
    animation: dropdownFadeIn 0.2s ease-out;
}

/* Option hover */
.select2-results__option--highlighted {
    background: rgba(0, 108, 110, 0.08) !important;
    color: var(--hvtc-primary) !important;
}

/* ===== Breadcrumb Container ===== */
.app-breadcrumb {
    background: #f8f9fa;
    padding: 10px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

    /* ===== Breadcrumb List ===== */
    .app-breadcrumb ol {
        display: flex;
        flex-wrap: wrap;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    /* ===== Breadcrumb Item ===== */
    .app-breadcrumb li {
        display: flex;
        align-items: center;
        color: #6c757d;
    }

        /* ===== Separator ===== */
        .app-breadcrumb li + li::before {
            content: "›";
            margin: 0 10px;
            color: #adb5bd;
            font-size: 16px;
        }

    /* ===== Link ===== */
    .app-breadcrumb a {
        color: #0d6efd;
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }

        .app-breadcrumb a:hover {
            text-decoration: underline;
        }

    /* ===== Active Item ===== */
    .app-breadcrumb .active {
        color: #212529;
        font-weight: 600;
        pointer-events: none;
    }

/* ===== Mobile ===== */
@media (max-width: 576px) {
    .app-breadcrumb {
        font-size: 13px;
        padding: 8px 12px;
    }

        .app-breadcrumb li + li::before {
            margin: 0 6px;
        }
}
/* ===== Breadcrumb link - bỏ màu xanh ===== */
.app-breadcrumb a {
    color: #495057; /* xám đậm, giống text */
    text-decoration: none;
    font-weight: 500;
}

    /* Hover */
    .app-breadcrumb a:hover {
        color: #0d6efd; /* xanh bootstrap khi hover */
        text-decoration: underline;
    }

/* Active / current */
.app-breadcrumb .active {
    color: #212529;
    font-weight: 600;
    pointer-events: none;
}

/* ================================
   LOADING SPINNER OVERLAY
================================ */

/* Overlay */
#loading {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(var(--blur-sm));
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

#loading.active {
    display: flex;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--hvtc-border-light);
    border-top: 4px solid var(--hvtc-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================
   CUSTOM MODAL - ENHANCED
============================ */
.custom-modal .modal-content {
    border-radius: var(--radius-xl) !important;
    border: none !important;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease-out;
    box-shadow: var(--shadow-2xl);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.custom-modal .modal-header {
    background: linear-gradient(135deg, var(--hvtc-primary) 0%, var(--hvtc-primary-light) 100%);
    color: var(--hvtc-white) !important;
    padding: var(--space-lg) var(--space-xl) !important;
    border-bottom: none;
    position: relative;
    overflow: hidden;
}

.custom-modal .modal-header::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
}

.custom-modal .modal-header .modal-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    position: relative;
    z-index: 1;
}

.custom-modal .modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.custom-modal .modal-body {
    padding: var(--space-xl) !important;
}

.custom-modal .modal-footer {
    padding: var(--space-lg) var(--space-xl) !important;
    background: var(--hvtc-gray-50);
    border-top: 1px solid var(--hvtc-border-light);
}

/* Error input viền đỏ rõ */
input.error, select.error,
.form-control.is-invalid, .form-select.is-invalid {
    border-color: var(--hvtc-danger) !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1) !important;
}

/* Error text */
.invalid-feedback {
    font-size: var(--text-sm);
    color: var(--hvtc-danger) !important;
    margin-top: var(--space-xs);
}