/* =========================================================================
   Kandan Alloys ERP - application theme
   Brand: deep red (#C8102E) + antique gold (#C9922B)
   Supports Bootstrap 5.3 colour modes (light / dark) via [data-bs-theme].
   ========================================================================= */

:root {
    --ka-red: #c8102e;
    --ka-red-dark: #9d0c24;
    --ka-red-light: #e8465f;
    --ka-gold: #c9922b;
    --ka-gold-light: #e8b959;
    --ka-sidebar-w: 258px;
    --ka-sidebar-w-collapsed: 68px;
    --ka-topbar-h: 58px;
    --ka-radius: 10px;

    --ka-body-bg: #f2f4f8;
    --ka-surface: #ffffff;
    --ka-border: #e3e7ef;
    --ka-muted: #6b7488;
    --ka-heading: #1d2433;
    --ka-sidebar-bg: #17202f;
    --ka-sidebar-fg: #aab4c6;
    --ka-sidebar-hover: #212c3f;
}

[data-bs-theme="dark"] {
    --ka-body-bg: #10151f;
    --ka-surface: #19202e;
    --ka-border: #2a3346;
    --ka-muted: #8f9ab1;
    --ka-heading: #e8ecf4;
    --ka-sidebar-bg: #0c111a;
    --ka-sidebar-fg: #97a2b8;
    --ka-sidebar-hover: #1a2231;
}

* { scrollbar-width: thin; }

body {
    background: var(--ka-body-bg);
    color: var(--ka-heading);
    font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 0.875rem;
    min-height: 100vh;
}

a { text-decoration: none; }

/* ---------------------------------------------------------------- Layout */

.ka-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--ka-sidebar-w);
    background: var(--ka-sidebar-bg);
    color: var(--ka-sidebar-fg);
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: width .18s ease, transform .18s ease;
}

.ka-sidebar__brand {
    height: var(--ka-topbar-h);
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: 0 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    flex: 0 0 auto;
}

.ka-sidebar__brand img { height: 32px; width: auto; }

.ka-sidebar__brand span {
    color: #fff;
    font-weight: 700;
    font-size: .98rem;
    letter-spacing: .3px;
    white-space: nowrap;
}

.ka-sidebar__nav {
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1 1 auto;
    padding: .65rem 0 2rem;
}

.ka-sidebar__nav::-webkit-scrollbar { width: 5px; }
.ka-sidebar__nav::-webkit-scrollbar-thumb { background: #33405a; border-radius: 4px; }

.ka-nav-heading {
    padding: 1rem 1.15rem .4rem;
    font-size: .66rem;
    font-weight: 700;
    letter-spacing: .09em;
    text-transform: uppercase;
    color: #5d6a83;
    white-space: nowrap;
}

.ka-nav-link {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .53rem 1.15rem;
    color: var(--ka-sidebar-fg);
    font-size: .845rem;
    border-left: 3px solid transparent;
    white-space: nowrap;
    transition: background .12s, color .12s;
}

.ka-nav-link i { font-size: 1.02rem; width: 1.15rem; text-align: center; flex: 0 0 auto; }

.ka-nav-link:hover { background: var(--ka-sidebar-hover); color: #fff; }

.ka-nav-link.active {
    background: linear-gradient(90deg, rgba(200, 16, 46, .22), transparent);
    border-left-color: var(--ka-red);
    color: #fff;
    font-weight: 600;
}

.ka-nav-link .badge { margin-left: auto; font-size: .64rem; }

.ka-nav-group > .ka-nav-link::after {
    content: "\F282";
    font-family: "bootstrap-icons";
    margin-left: auto;
    font-size: .7rem;
    transition: transform .18s;
}

.ka-nav-group.open > .ka-nav-link::after { transform: rotate(180deg); }

.ka-nav-sub { display: none; padding: .1rem 0 .25rem; background: rgba(0, 0, 0, .16); }
.ka-nav-group.open > .ka-nav-sub { display: block; }
.ka-nav-sub .ka-nav-link { padding-left: 3.05rem; font-size: .81rem; }

/* Collapsed rail */
body.ka-collapsed .ka-sidebar { width: var(--ka-sidebar-w-collapsed); }
body.ka-collapsed .ka-sidebar .ka-nav-heading,
body.ka-collapsed .ka-sidebar .ka-nav-link span,
body.ka-collapsed .ka-sidebar__brand span,
body.ka-collapsed .ka-nav-group > .ka-nav-link::after { display: none; }
body.ka-collapsed .ka-sidebar .ka-nav-link { justify-content: center; padding: .6rem 0; }
body.ka-collapsed .ka-main { margin-left: var(--ka-sidebar-w-collapsed); }
body.ka-collapsed .ka-topbar { left: var(--ka-sidebar-w-collapsed); }

.ka-main {
    margin-left: var(--ka-sidebar-w);
    padding-top: var(--ka-topbar-h);
    min-height: 100vh;
    transition: margin-left .18s ease;
}

.ka-topbar {
    position: fixed;
    top: 0;
    left: var(--ka-sidebar-w);
    right: 0;
    height: var(--ka-topbar-h);
    background: var(--ka-surface);
    border-bottom: 1px solid var(--ka-border);
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: 0 1rem;
    z-index: 1030;
    transition: left .18s ease;
}

.ka-topbar__search { max-width: 420px; flex: 1 1 auto; }

.ka-content { padding: 1.1rem 1.25rem 2.5rem; }

/* ------------------------------------------------------------- Page head */

.ka-page-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    margin-bottom: 1rem;
}

.ka-page-head h1 {
    font-size: 1.18rem;
    font-weight: 700;
    margin: 0;
    color: var(--ka-heading);
}

.ka-page-head .breadcrumb { margin: .18rem 0 0; font-size: .765rem; }
.ka-page-head .breadcrumb-item + .breadcrumb-item::before { content: "\203A"; }

/* ---------------------------------------------------------------- Cards */

.card {
    background: var(--ka-surface);
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius);
    box-shadow: 0 1px 2px rgba(16, 24, 40, .04);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--ka-border);
    padding: .72rem 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
}

.card-header h2, .card-header h3, .card-header h6 { font-size: .93rem; margin: 0; font-weight: 700; }
.card-body { padding: 1rem; }

/* Statistic tiles */
.ka-stat {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .95rem 1rem;
    height: 100%;
}

.ka-stat__icon {
    width: 44px;
    height: 44px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    font-size: 1.28rem;
    flex: 0 0 auto;
}

.ka-stat__value { font-size: 1.4rem; font-weight: 700; line-height: 1.1; color: var(--ka-heading); }
.ka-stat__label { font-size: .755rem; color: var(--ka-muted); text-transform: uppercase; letter-spacing: .045em; font-weight: 600; }

/* ---------------------------------------------------------------- Tables */

table.dataTable { font-size: .82rem; border-collapse: collapse !important; }

table.dataTable thead th {
    background: var(--ka-body-bg);
    border-bottom: 2px solid var(--ka-border) !important;
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--ka-muted);
    font-weight: 700;
    white-space: nowrap;
    padding: .6rem .55rem;
}

table.dataTable tbody td { padding: .5rem .55rem; vertical-align: middle; }
table.dataTable tbody tr:hover > td { background: rgba(200, 16, 46, .035); }

.dt-container .dt-length select,
.dt-container .dt-search input { font-size: .82rem; padding: .25rem .5rem; }
.dt-container .dt-paging .page-link { font-size: .8rem; padding: .3rem .6rem; }
.dt-container .dt-info { font-size: .78rem; color: var(--ka-muted); }

/* Item grid used on quotation / PO / Form 10 forms */
.ka-items-table { font-size: .8rem; }
.ka-items-table th {
    background: var(--ka-body-bg);
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--ka-muted);
    white-space: nowrap;
    padding: .45rem .4rem;
    vertical-align: middle;
}
.ka-items-table td { padding: .28rem .3rem; vertical-align: middle; }
.ka-items-table .form-control,
.ka-items-table .form-select { font-size: .8rem; padding: .28rem .45rem; min-width: 70px; }
.ka-items-table input[readonly] { background: var(--ka-body-bg); font-weight: 600; }
.ka-items-table .ka-col-sl { width: 42px; text-align: center; }
.ka-items-table .ka-col-act { width: 44px; text-align: center; }

/* ---------------------------------------------------------------- Forms */

.form-label { font-size: .78rem; font-weight: 600; margin-bottom: .22rem; color: var(--ka-heading); }
.form-label .req { color: var(--ka-red); }
.form-control, .form-select { font-size: .845rem; }
.form-control:focus, .form-select:focus {
    border-color: var(--ka-red-light);
    box-shadow: 0 0 0 .18rem rgba(200, 16, 46, .12);
}
.form-text { font-size: .74rem; }
.input-group-text { font-size: .8rem; background: var(--ka-body-bg); }

.select2-container--bootstrap-5 .select2-selection { font-size: .845rem; min-height: calc(1.5em + .75rem + 2px); }
.select2-container { width: 100% !important; }

/* Sticky form action bar */
.ka-sticky-actions {
    position: sticky;
    bottom: 0;
    z-index: 20;
    background: var(--ka-surface);
    border-top: 1px solid var(--ka-border);
    padding: .7rem 1rem;
    margin: 1rem -1rem -1rem;
    display: flex;
    gap: .5rem;
    justify-content: flex-end;
    border-radius: 0 0 var(--ka-radius) var(--ka-radius);
    box-shadow: 0 -2px 8px rgba(16, 24, 40, .05);
}

/* ---------------------------------------------------------------- Misc */

.btn { font-size: .83rem; border-radius: 7px; }
.btn-sm { font-size: .78rem; }
.btn-primary { background: var(--ka-red); border-color: var(--ka-red); }
.btn-primary:hover, .btn-primary:focus { background: var(--ka-red-dark); border-color: var(--ka-red-dark); }
.btn-outline-primary { color: var(--ka-red); border-color: var(--ka-red); }
.btn-outline-primary:hover { background: var(--ka-red); border-color: var(--ka-red); }
.text-brand { color: var(--ka-red) !important; }
.bg-brand { background: var(--ka-red) !important; }
.bg-gold { background: var(--ka-gold) !important; }

.badge { font-weight: 600; letter-spacing: .015em; }

.ka-timeline { position: relative; padding-left: 1.6rem; }
.ka-timeline::before {
    content: "";
    position: absolute;
    left: .42rem;
    top: .3rem;
    bottom: .3rem;
    width: 2px;
    background: var(--ka-border);
}
.ka-timeline__item { position: relative; padding-bottom: 1rem; }
.ka-timeline__item::before {
    content: "";
    position: absolute;
    left: -1.35rem;
    top: .34rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--ka-red);
    box-shadow: 0 0 0 3px var(--ka-surface);
}

/* Workflow progress strip on document views */
.ka-flow { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; font-size: .78rem; }
.ka-flow__step {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .3rem .7rem;
    border-radius: 20px;
    border: 1px solid var(--ka-border);
    color: var(--ka-muted);
    background: var(--ka-surface);
}
.ka-flow__step.done { border-color: #198754; color: #198754; background: rgba(25, 135, 84, .07); }
.ka-flow__step.current { border-color: var(--ka-red); color: var(--ka-red); background: rgba(200, 16, 46, .07); font-weight: 600; }
.ka-flow__sep { color: var(--ka-muted); }

.ka-empty { text-align: center; padding: 2.4rem 1rem; color: var(--ka-muted); }
.ka-empty i { font-size: 2.4rem; opacity: .35; display: block; margin-bottom: .5rem; }

.ka-kv { display: grid; grid-template-columns: minmax(120px, 34%) 1fr; gap: .3rem .8rem; font-size: .82rem; }
.ka-kv dt { color: var(--ka-muted); font-weight: 600; }
.ka-kv dd { margin: 0; word-break: break-word; }

.ka-notif-item { display: flex; gap: .6rem; padding: .6rem .85rem; border-bottom: 1px solid var(--ka-border); }
.ka-notif-item.unread { background: rgba(200, 16, 46, .045); }
.ka-notif-item:last-child { border-bottom: 0; }

.ka-search-result { padding: .5rem .85rem; border-bottom: 1px solid var(--ka-border); display: block; color: inherit; }
.ka-search-result:hover { background: var(--ka-body-bg); }

/* Read-only revision banner */
.ka-locked-banner {
    background: rgba(255, 193, 7, .14);
    border: 1px solid rgba(255, 193, 7, .4);
    color: #7a5b00;
    border-radius: var(--ka-radius);
    padding: .6rem .9rem;
    font-size: .82rem;
    margin-bottom: 1rem;
}
[data-bs-theme="dark"] .ka-locked-banner { color: #ffd76a; }

/* ---------------------------------------------------------------- Mobile */

@media (max-width: 991.98px) {
    .ka-sidebar { transform: translateX(-100%); }
    body.ka-sidebar-open .ka-sidebar { transform: translateX(0); }
    .ka-main, body.ka-collapsed .ka-main { margin-left: 0; }
    .ka-topbar, body.ka-collapsed .ka-topbar { left: 0; }
    .ka-topbar__search { display: none; }
    .ka-content { padding: .85rem .8rem 2rem; }
    .ka-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, .45);
        z-index: 1035;
        display: none;
    }
    body.ka-sidebar-open .ka-backdrop { display: block; }
}

/* ---------------------------------------------------------------- Print */

@media print {
    .ka-sidebar, .ka-topbar, .ka-page-head, .ka-sticky-actions, .no-print { display: none !important; }
    .ka-main { margin: 0; padding: 0; }
    .card { border: 0; box-shadow: none; }
    body { background: #fff; }
}