@import url('https://fonts.googleapis.com/css2?family=Kantumruy+Pro:ital,wght@0,100..700;1,100..700&family=Kantumruy:wght@400;700&display=swap');

:root {
    --ink: #a52a2a;
    --paper: #f8fafc;
    --panel: #ffffff;
    --line: #e2e8f0;
    --line-strong: #a52a2a;
    --muted: #64748b;
    --soft: #fdf8f8;

    /* Unified Border Radius Design Tokens */
    --radius-lg: 14px;      /* Cards, Modals, Large Containers */
    --radius-md: 10px;      /* Dropdowns, Inner Boxes, Thumbnails */
    --radius-sm: 8px;       /* Buttons, Form Controls, Inputs */
    --radius-pill: 9999px;  /* Badges, Filter Tabs, Avatars */
}

*, ::before, ::after {
    box-sizing: border-box;
}

html, body,
h1, h2, h3, h4, h5, h6, p,
a, span, label, input, button, select, textarea, optgroup, option,
table, th, td, div,
.form-control, .form-select, .btn, .badge, .card, .dropdown-item, .modal-title, .display-font, .brand-title {
    font-family: 'Kantumruy Pro', 'Kantumruy', sans-serif !important;
}

body {
    background: var(--paper);
    color: #1e293b;
    min-height: 100vh;
    line-height: 1.6;
}

/* Maintain icon fonts */
.bi, [class^="bi-"], [class*=" bi-"] {
    font-family: 'bootstrap-icons' !important;
}

/* Maintain code & monospaced invoice IDs */
code, kbd, pre, samp, .font-monospace {
    font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !important;
}

/* Global Uniformity: Cards, Modals, Dropdowns */
.card {
    border-radius: var(--radius-lg) !important;
    border-color: var(--line) !important;
}

.modal-content {
    border-radius: var(--radius-lg) !important;
    border: 1px solid var(--line) !important;
    overflow: hidden;
}

.dropdown-menu {
    border-radius: var(--radius-md) !important;
    border: 1px solid var(--line) !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08) !important;
    z-index: 1060 !important;
}

.btn {
    border-radius: var(--radius-sm);
}

.btn-group > .btn {
    border-radius: 0;
}
.btn-group > .btn:first-child,
.btn-group > form:first-child > .btn {
    border-top-left-radius: var(--radius-sm);
    border-bottom-left-radius: var(--radius-sm);
}
.btn-group > .btn:last-child,
.btn-group > form:last-child > .btn {
    border-top-right-radius: var(--radius-sm);
    border-bottom-right-radius: var(--radius-sm);
}

.form-control, .form-select, .input-group-text {
    border-radius: var(--radius-sm);
    border-color: var(--line);
}

.input-group > :not(:first-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) {
    border-top-right-radius: var(--radius-sm) !important;
    border-bottom-right-radius: var(--radius-sm) !important;
}
.input-group > :not(:last-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) {
    border-top-left-radius: var(--radius-sm) !important;
    border-bottom-left-radius: var(--radius-sm) !important;
}

/* Layout Shell */
.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    flex-shrink: 0;
    background: #ffffff;
    border-right: 1px solid var(--line);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    padding: 1.4rem 1rem;
    display: flex;
    flex-direction: column;
    z-index: 1040;
    transition: transform .2s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: 0 .4rem;
    margin-bottom: 1.6rem;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    background: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
}

.brand-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -.01em;
    line-height: 1.1;
}

.brand-sub {
    font-size: .66rem;
    color: var(--muted);
    letter-spacing: .1em;
    text-transform: uppercase;
}

.nav-group-label {
    font-size: .68rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .09em;
    font-weight: 600;
    padding: 0 .6rem;
    margin: 1.1rem 0 .4rem;
}

.sidebar-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-nav .nav-link-item {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .55rem .65rem;
    border-radius: var(--radius-sm);
    color: var(--ink);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 500;
    margin-bottom: .15rem;
    transition: background-color .15s ease, color .15s ease;
}

.sidebar-nav .nav-link-item i {
    font-size: 1rem;
    width: 18px;
    text-align: center;
    color: var(--muted);
}

.sidebar-nav .nav-link-item:hover {
    background: var(--soft);
}

.sidebar-nav .nav-link-item.active {
    background: var(--ink);
    color: #fff;
}

.sidebar-nav .nav-link-item.active i {
    color: #fff;
}

.sidebar-foot {
    margin-top: auto;
    border-top: 1px solid var(--line);
    padding-top: .9rem;
    display: flex;
    align-items: center;
    gap: .6rem;
}

.sidebar-foot .avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-pill);
    background: var(--soft);
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: .8rem;
}

.main-content {
    margin-left: 250px;
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.topbar {
    background: #ffffff;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
}

.sidebar-toggle {
    display: none;
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
        box-shadow: 8px 0 24px rgba(0, 0, 0, .08);
    }
    .main-content {
        margin-left: 0;
    }
    .sidebar-toggle {
        display: inline-flex;
    }
    .sidebar-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(17, 17, 17, .35);
        z-index: 1030;
    }
    .sidebar-backdrop.show {
        display: block;
    }
}

/* Theme Buttons and Form Controls */
.btn-ink {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

.btn-ink:hover, .btn-ink:focus {
    background: #8b2323;
    border-color: #8b2323;
    color: #fff;
}

.btn-ink:disabled {
    background: #cfcfcf;
    border-color: #cfcfcf;
}

.btn-outline-ink {
    border-color: var(--ink);
    color: var(--ink);
    background: transparent;
}

.btn-outline-ink:hover {
    background: var(--ink);
    color: #fff;
}

.form-control:focus, .form-select:focus {
    border-color: var(--ink);
    box-shadow: 0 0 0 .2rem rgba(165, 42, 42, .12);
}

/* Theme DataTables Customization */
div.dt-container {
    font-size: 0.88rem;
}

div.dt-container div.dt-layout-row {
    padding: 0.75rem 1.25rem;
    align-items: center;
}

div.dt-container div.dt-length select.dt-input,
div.dt-container div.dt-search input.dt-input {
    border-radius: var(--radius-sm) !important;
    border: 1px solid var(--line) !important;
    padding: 0.35rem 0.65rem !important;
    font-size: 0.85rem !important;
    color: var(--ink);
}

div.dt-container div.dt-search input.dt-input:focus,
div.dt-container div.dt-length select.dt-input:focus {
    border-color: var(--ink) !important;
    outline: none;
    box-shadow: 0 0 0 2px rgba(165, 42, 42, 0.15);
}

div.dt-container .dt-info {
    color: var(--muted);
    font-size: 0.82rem;
    padding: 0.6rem 0;
}

div.dt-container .dt-paging .pagination {
    margin-bottom: 0;
    gap: 3px;
}

div.dt-container .dt-paging .page-link {
    border-radius: var(--radius-sm) !important;
    color: var(--ink);
    border-color: var(--line);
    padding: 0.35rem 0.75rem;
    font-size: 0.82rem;
    font-weight: 500;
}

div.dt-container .dt-paging .page-link:hover {
    background-color: var(--soft);
    border-color: var(--line);
    color: var(--ink);
}

div.dt-container .dt-paging .page-item.active .page-link {
    background-color: var(--ink) !important;
    border-color: var(--ink) !important;
    color: #ffffff !important;
}

div.dt-container .dt-paging .page-item.disabled .page-link {
    color: #cbd5e1;
    background-color: transparent;
    border-color: var(--line);
}

table.dataTable thead th {
    font-size: 0.78rem !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    border-bottom: 2px solid var(--line) !important;
}

footer.foot {
    color: var(--muted);
    font-size: .8rem;
    background: #ffffff;
}