/* =====================================================================
   KNSApp Admin — Modern Theme
   Bảng màu: Indigo primary + Slate neutrals. Áp toàn cục cho mọi trang.
   ===================================================================== */

:root {
    /* Palette — Xanh lá chủ đạo */
    --kns-primary: #16a34a;          /* green-600 */
    --kns-primary-hover: #15803d;    /* green-700 */
    --kns-primary-dark: #166534;     /* green-800 */
    --kns-primary-soft: #dcfce7;     /* green-100 */
    --kns-primary-softer: #f0fdf4;   /* green-50 */
    --kns-bg: #ffffff;                 /* content trắng tinh — vùng làm việc chính */
    --kns-surface: #ffffff;
    --kns-border: #e2e8f0;
    --kns-border-strong: #cbd5e1;
    --kns-text: #1e293b;
    --kns-text-muted: #64748b;
    --kns-success: #16a34a;
    --kns-danger: #dc2626;
    --kns-warning: #d97706;
    --kns-info: #0891b2;
    --kns-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --kns-shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --kns-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);
    --kns-radius: 10px;
    --kns-radius-sm: 7px;

    /* Map vào biến Bootstrap 5.3 để component built-in cũng đổi theo */
    --bs-primary: #16a34a;
    --bs-primary-rgb: 22, 163, 74;
    --bs-link-color: #15803d;
    --bs-link-hover-color: #166534;
    --bs-border-color: #e2e8f0;
    --bs-body-color: #1e293b;
}

/* ===== Base ===== */
html, body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Inter', Roboto, Helvetica, Arial, sans-serif;
    color: var(--kns-text);
    background-color: var(--kns-bg);
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: rgba(22, 163, 74, 0.12);
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}
@media (max-width: 991.98px) {
    html, body { overscroll-behavior-y: contain; }
}
/* Khi drawer mở thì khoá scroll body — KHÔNG dùng touch-action: none vì sẽ chặn tap iOS */
body.drawer-open { overflow: hidden !important; }

a, .btn-link {
    color: var(--kns-primary);
    text-decoration: none;
}
a:hover, .btn-link:hover { color: var(--kns-primary-hover); }

/* ===== Typography ===== */
h1, .h1 { font-size: 1.6rem; font-weight: 700; color: var(--kns-text); }
h2, .h2 { font-size: 1.35rem; font-weight: 700; color: var(--kns-text); }
h3, .h3 { font-size: 1.15rem; font-weight: 600; color: var(--kns-text); }
h4, h5, h6 { font-weight: 600; color: var(--kns-text); }
.text-muted { color: var(--kns-text-muted) !important; }

h1:focus { outline: none; }

/* ===== Layout helpers (giữ từ bản cũ) ===== */
.content {
    padding-top: 1.25rem;
    min-width: 0;
    overflow-x: hidden;
}
main { min-width: 0; overflow-x: hidden; }

.row > [class*="col-"] { min-width: 0; }

/* ===== Cards ===== */
.card {
    background: var(--kns-surface);
    border: 1px solid var(--kns-border);
    border-radius: var(--kns-radius);
    box-shadow: var(--kns-shadow-sm);
}
.card-header {
    background: #f8fafc;
    border-bottom: 1px solid var(--kns-border);
    font-weight: 600;
    border-radius: var(--kns-radius) var(--kns-radius) 0 0 !important;
}
.card-footer {
    background: #f8fafc;
    border-top: 1px solid var(--kns-border);
}

/* ===== Buttons ===== */
.btn {
    border-radius: var(--kns-radius-sm);
    font-weight: 500;
    transition: background-color .13s ease, border-color .13s ease, box-shadow .13s ease, transform .04s ease;
}
.btn:active { transform: translateY(1px); }
.btn-sm { border-radius: 6px; }

.btn-primary {
    color: #fff;
    background-color: var(--kns-primary);
    border-color: var(--kns-primary);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--kns-primary-hover);
    border-color: var(--kns-primary-hover);
    color: #fff;
}
.btn-outline-primary {
    color: var(--kns-primary);
    border-color: var(--kns-primary);
}
.btn-outline-primary:hover {
    background-color: var(--kns-primary);
    border-color: var(--kns-primary);
    color: #fff;
}

.btn:focus, .btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus, .form-select:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(22, 163, 74, 0.18);
}

/* ===== Forms ===== */
.form-control, .form-select {
    border-radius: var(--kns-radius-sm);
    border-color: var(--kns-border-strong);
    color: var(--kns-text);
}
.form-control:focus, .form-select:focus {
    border-color: var(--kns-primary);
}
.form-label { font-weight: 500; color: #334155; }
.input-group-text {
    background: #f8fafc;
    border-color: var(--kns-border-strong);
    color: var(--kns-text-muted);
    border-radius: var(--kns-radius-sm);
}

/* ===== Tables ===== */
.table {
    --bs-table-bg: transparent;
    color: var(--kns-text);
    border-color: var(--kns-border);
    margin-bottom: 0;
}
.table > thead > tr > th {
    background: #f8fafc;
    color: var(--kns-text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-bottom: 2px solid var(--kns-border);
    padding: 0.7rem 0.75rem;
    white-space: nowrap;
}
.table > tbody > tr > td {
    padding: 0.7rem 0.75rem;
    border-bottom: 1px solid var(--kns-border);
    vertical-align: middle;
}
.table > tbody > tr:hover > td {
    background: #f8fafc;
}
.table-striped > tbody > tr:nth-of-type(odd) > td {
    background: #fbfcfe;
}
/* Bảng đặt trong card → bo góc đẹp */
.card > .table:last-child,
.card-body > .table:last-child { margin-bottom: 0; }

.table-responsive-wrap { overflow-x: auto; }
table { table-layout: auto; max-width: 100%; }

/* ===== Badges ===== */
.badge {
    font-weight: 600;
    padding: 0.35em 0.6em;
    border-radius: 6px;
    letter-spacing: 0.01em;
}

/* ===== Nav tabs (mặc định, dùng chung) ===== */
/* LUÔN 1 DÒNG — màn hẹp thì cuộn ngang thay vì rớt dòng xấu */
.nav-tabs {
    border-bottom: 2px solid var(--kns-border);
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}
.nav-tabs::-webkit-scrollbar { height: 4px; }
.nav-tabs::-webkit-scrollbar-thumb { background: var(--kns-border-strong); border-radius: 2px; }

.nav-tabs .nav-link {
    color: var(--kns-text-muted);
    font-weight: 500;
    white-space: nowrap;
    border: none;
    border-bottom: 3px solid transparent;
    border-radius: 6px 6px 0 0;
    margin-bottom: -2px;
    padding: 0.55rem 0.9rem;
}
.nav-tabs .nav-link:hover {
    background: #f1f5f9;
    color: var(--kns-text);
    border-color: transparent;
}
.nav-tabs .nav-link.active {
    color: var(--kns-primary);
    font-weight: 600;
    background: transparent;
    border-color: transparent;
    border-bottom-color: var(--kns-primary);
}

/* ===== Modal ===== */
.modal-content {
    border: none;
    border-radius: 14px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}
.modal-header {
    border-bottom: 1px solid var(--kns-border);
    border-radius: 14px 14px 0 0;
}
.modal-footer {
    border-top: 1px solid var(--kns-border);
}
.modal-lg, .modal-xl { max-width: min(900px, 95vw); }

/* ===== Alerts ===== */
.alert {
    border-radius: var(--kns-radius);
    border: 1px solid transparent;
}
.alert-success { background: #f0fdf4; border-color: #bbf7d0; color: #15803d; }
.alert-danger  { background: #fef2f2; border-color: #fecaca; color: #b91c1c; }
.alert-warning { background: #fffbeb; border-color: #fde68a; color: #b45309; }
.alert-info    { background: #ecfeff; border-color: #a5f3fc; color: #0e7490; }
.alert-light   { background: #f8fafc; border-color: var(--kns-border); color: #475569; }

/* ===== Dropdown ===== */
.dropdown-menu {
    border: 1px solid var(--kns-border);
    border-radius: var(--kns-radius);
    box-shadow: var(--kns-shadow-md);
}

/* ===== Code / JSON block ===== */
pre, code {
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
}
pre {
    max-width: 100%;
    overflow-x: auto;
    background: #f8fafc;
    border: 1px solid var(--kns-border);
    border-radius: var(--kns-radius-sm);
}
code { color: #be185d; }

/* ===== Validation ===== */
.valid.modified:not([type=checkbox]) { outline: 1px solid #26b050; }
.invalid { outline: 1px solid #e50000; }
.validation-message { color: #e50000; }

.darker-border-checkbox.form-check-input { border-color: #929292; }

/* =====================================================================
   PAGE HEADER chung — page-title + page-icon gradient + page-sub
   Dùng ở hầu hết các trang admin để đồng nhất visual
   ===================================================================== */
.page-header { display: flex; gap: 1rem; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.page-title {
    display: flex; align-items: center; gap: 0.6rem;
    margin: 0; font-size: 1.5rem; font-weight: 700;
    color: var(--kns-text, #0f172a);
}
.page-icon {
    width: 2.4rem; height: 2.4rem;
    border-radius: 10px;
    background: linear-gradient(135deg, #22c55e, #15803d);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px rgba(22, 163, 74, 0.3);
    flex-shrink: 0;
}
.page-sub {
    margin-top: 0.25rem;
    font-size: 0.85rem;
    color: var(--kns-text-muted, #64748b);
}
@media (max-width: 575.98px) {
    .page-title { font-size: 1.25rem; }
    .page-icon { width: 2rem; height: 2rem; font-size: 1rem; }
}

/* =====================================================================
   MOBILE TWEAKS — gộp cuối file, áp toàn site
   ===================================================================== */
@media (max-width: 991.98px) {
    /* Heading nhỏ hơn chút để không tràn trên mobile */
    h1, .h1 { font-size: 1.35rem; }
    h2, .h2 { font-size: 1.18rem; }
    h3, .h3 { font-size: 1.05rem; }

    /* Card padding rộng rãi vừa phải, bo góc đẹp */
    .card { border-radius: 9px; }
    .card-body { padding: 0.9rem; }
    .card-header { padding: 0.7rem 0.9rem; font-size: 0.95rem; }

    /* Button — touch target tối thiểu ~40px chiều dọc */
    .btn:not(.btn-sm):not(.btn-xs) {
        min-height: 2.4rem;
        padding-left: 0.85rem;
        padding-right: 0.85rem;
    }
    .btn-sm { min-height: 2rem; }

    /* Form control — không cho iOS zoom (font >= 16px) */
    .form-control, .form-select {
        font-size: 16px;
        min-height: 2.4rem;
    }
    .form-control-sm, .form-select-sm {
        font-size: 14px;
        min-height: 2rem;
    }

    /* Bảng — luôn cho cuộn ngang khi đặt trong .table-responsive */
    .table-responsive { -webkit-overflow-scrolling: touch; }
    .table > thead > tr > th,
    .table > tbody > tr > td {
        padding: 0.55rem 0.6rem;
        font-size: 0.85rem;
    }

    /* Modal — gần như fullscreen ở phone, dễ thao tác */
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100vw - 1rem);
    }
    .modal-content { border-radius: 12px; }
    .modal-body { padding: 0.9rem; }
    .modal-header, .modal-footer { padding: 0.75rem 0.9rem; }
    .modal-lg, .modal-xl, .modal-fullscreen-lg-down {
        max-width: calc(100vw - 1rem);
    }

    /* Container fluid — bỏ padding thừa */
    .container, .container-fluid { padding-left: 0.75rem; padding-right: 0.75rem; }

    /* Pagination — touch lớn hơn */
    .page-link { padding: 0.5rem 0.7rem; }

    /* Tabs trên mobile — chữ nhỏ hơn 1 chút, padding gọn */
    .nav-tabs .nav-link { padding: 0.5rem 0.7rem; font-size: 0.88rem; }
}

@media (max-width: 575.98px) {
    /* Cực hẹp: card sát mép, padding tối thiểu */
    .card-body { padding: 0.75rem; }
    .table > thead > tr > th,
    .table > tbody > tr > td {
        padding: 0.45rem 0.5rem;
        font-size: 0.8rem;
    }
    .modal-dialog {
        margin: 0.25rem;
        max-width: calc(100vw - 0.5rem);
    }
    /* Khoảng cách giữa các row form */
    .row { --bs-gutter-x: 0.75rem; }
}

/* ===== Blazor error ===== */
.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: var(--kns-radius-sm);
}
.blazor-error-boundary::after { content: "Đã xảy ra lỗi."; }