/* ============================================================
   Bharat Automate HRMS — Design System
   Modern SaaS admin theme (built on Bootstrap 5.3)
   ============================================================ */

:root {
    --ba-primary: #0D47A1;
    --ba-primary-2: #1565C0;
    --ba-primary-soft: #E8F0FB;
    --ba-success: #0F9D58;
    --ba-accent: #FF6B00;
    --ba-sidebar: #0A2540;
    --ba-sidebar-2: #0F3057;
    --ba-ink: #333333;
    --ba-muted: #64748b;
    --ba-line: #e2e8f0;
    --ba-bg: #f1f5f9;
    --ba-radius: 14px;
    --ba-shadow: 0 6px 24px rgba(13, 71, 161, .07);
    --ba-shadow-lg: 0 18px 40px rgba(13, 71, 161, .14);
    --sidebar-w: 264px;
}

* { font-family: 'Montserrat', 'Segoe UI', system-ui, -apple-system, sans-serif; }

body {
    background: var(--ba-bg);
    color: var(--ba-ink);
    font-size: 14.5px;
}

/* ---------------- Auth screen ---------------- */
.auth-wrap {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
}
.auth-hero {
    background: linear-gradient(140deg, var(--ba-primary), var(--ba-primary-2));
    color: #fff;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.auth-hero::after {
    content: "";
    position: absolute;
    width: 480px; height: 480px;
    background: rgba(255, 255, 255, .08);
    border-radius: 50%;
    right: -160px; bottom: -160px;
}
.auth-hero h1 { font-weight: 800; font-size: 2.2rem; line-height: 1.15; }
.auth-hero .feature { display: flex; gap: 12px; align-items: center; margin-top: 14px; opacity: .95; }
.auth-hero .feature i { font-size: 1.15rem; }
.auth-form {
    display: flex; align-items: center; justify-content: center;
    padding: 40px;
}
.auth-card { width: 100%; max-width: 400px; }
@media (max-width: 860px) {
    .auth-wrap { grid-template-columns: 1fr; }
    .auth-hero { display: none; }
}

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

.sidebar {
    width: var(--sidebar-w);
    background: var(--ba-sidebar);
    color: #cbd5e1;
    position: fixed;
    inset: 0 auto 0 0;
    display: flex;
    flex-direction: column;
    z-index: 1040;
    transition: transform .25s ease;
}
.sidebar .brand {
    padding: 20px 22px;
    display: flex; align-items: center; gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.sidebar .brand .logo {
    width: 38px; height: 38px; border-radius: 10px;
    background: linear-gradient(135deg, var(--ba-primary), var(--ba-primary-2));
    display: grid; place-items: center; color: #fff; font-weight: 800;
    box-shadow: 0 4px 14px rgba(124, 58, 237, .45);
}
.sidebar .brand b { color: #fff; font-size: 1.02rem; letter-spacing: .2px; }
.sidebar .brand span { font-size: .72rem; color: #94a3b8; display: block; }

.side-nav { padding: 14px 12px; overflow-y: auto; flex: 1; }
.side-nav .nav-label {
    font-size: .68rem; text-transform: uppercase; letter-spacing: .12em;
    color: #64748b; padding: 14px 12px 6px;
}
.side-nav a {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; border-radius: 10px;
    color: #cbd5e1; text-decoration: none; font-weight: 500;
    margin-bottom: 2px; transition: all .15s; position: relative;
}
.side-nav a i { font-size: 1.05rem; width: 20px; text-align: center; }
.side-nav a:hover { background: rgba(255, 255, 255, .06); color: #fff; }
.side-nav a.active {
    background: linear-gradient(135deg, var(--ba-primary), var(--ba-primary-2));
    color: #fff; box-shadow: 0 6px 18px rgba(13, 71, 161, .45); font-weight: 600;
}
.side-nav a.active::before {
    content: ""; position: absolute; left: -12px; top: 8px; bottom: 8px; width: 4px;
    border-radius: 0 4px 4px 0; background: var(--ba-accent);
}
.side-nav a .badge { margin-left: auto; }

.main { flex: 1; margin-left: var(--sidebar-w); min-width: 0; }

.topbar {
    height: 66px; background: #fff; border-bottom: 1px solid var(--ba-line);
    display: flex; align-items: center; gap: 16px;
    padding: 0 24px; position: sticky; top: 0; z-index: 1030;
}
.topbar .page-title { font-weight: 700; font-size: 1.05rem; }
.topbar .search {
    background: var(--ba-bg); border: 1px solid transparent; border-radius: 10px;
    padding: 8px 14px; width: 320px; max-width: 40vw;
}
.topbar .search:focus { border-color: var(--ba-primary); background: #fff; outline: none; }

.avatar {
    width: 38px; height: 38px; border-radius: 50%;
    background: linear-gradient(135deg, var(--ba-primary), var(--ba-primary-2));
    color: #fff; display: grid; place-items: center; font-weight: 700; font-size: .82rem;
    object-fit: cover;
}
.avatar-sm { width: 30px; height: 30px; font-size: .7rem; }
.avatar-lg { width: 84px; height: 84px; font-size: 1.6rem; border-radius: 20px; }

.content { padding: 26px 24px; }

/* ---------------- Cards & stats ---------------- */
.card {
    border: 1px solid var(--ba-line); border-radius: var(--ba-radius);
    box-shadow: var(--ba-shadow); background: #fff;
}
.card-header {
    background: #fff; border-bottom: 1px solid var(--ba-line);
    font-weight: 700; padding: 16px 20px;
}

.stat-card {
    padding: 20px; display: flex; align-items: center; gap: 16px;
    position: relative; overflow: hidden;
    transition: transform .18s ease, box-shadow .18s ease;
}
.stat-card::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
    background: var(--ba-primary); opacity: 0; transition: opacity .18s ease;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--ba-shadow-lg); }
.stat-card:hover::before { opacity: 1; }
.stat-icon {
    width: 50px; height: 50px; border-radius: 14px;
    display: grid; place-items: center; font-size: 1.35rem;
    flex-shrink: 0;
}
.stat-card .num { font-size: 1.8rem; font-weight: 800; line-height: 1; letter-spacing: -.02em; }
.stat-card .lbl { color: var(--ba-muted); font-size: .8rem; margin-top: 5px; font-weight: 500; }
/* Soft-tinted metric chips — bold brand glyph on a light wash */
.bg-grad-indigo  { background: var(--ba-primary-soft); color: var(--ba-primary); }
.bg-grad-emerald { background: #E6F7EF; color: var(--ba-success); }
.bg-grad-amber   { background: #FFF0E5; color: var(--ba-accent); }
.bg-grad-rose    { background: #FDECEC; color: #DC2626; }
.bg-grad-sky     { background: #E6F5FB; color: #0E7FB8; }
.bg-grad-violet  { background: #EAF0FB; color: var(--ba-primary-2); }

/* ---------------- Tables ---------------- */
.table { --bs-table-hover-bg: var(--ba-primary-soft); margin: 0; }
.table thead th {
    background: #f8fafc; color: var(--ba-muted); font-weight: 600;
    font-size: .74rem; text-transform: uppercase; letter-spacing: .05em;
    border-bottom: 1px solid var(--ba-line); padding: 12px 16px; white-space: nowrap;
}
.table tbody td { padding: 12px 16px; vertical-align: middle; border-color: #f1f5f9; }

.badge-soft {
    padding: 5px 10px; border-radius: 8px; font-weight: 600; font-size: .72rem;
}
.badge-soft.text-bg-success { background: #dcfce7 !important; color: #15803d !important; }
.badge-soft.text-bg-warning { background: #fef3c7 !important; color: #b45309 !important; }
.badge-soft.text-bg-danger  { background: #fee2e2 !important; color: #b91c1c !important; }
.badge-soft.text-bg-info    { background: #e0f2fe !important; color: #0369a1 !important; }
.badge-soft.text-bg-secondary { background: #f1f5f9 !important; color: #475569 !important; }

/* ---------------- Buttons & forms ---------------- */
.btn-primary {
    background: linear-gradient(135deg, var(--ba-primary), var(--ba-primary-2));
    border: none; box-shadow: 0 6px 16px rgba(13, 71, 161, .28);
}
.btn-primary:hover { filter: brightness(1.05); }
.btn { border-radius: 10px; font-weight: 600; padding: 8px 16px; }
.btn-sm { padding: 5px 11px; }
.form-control, .form-select {
    border-radius: 10px; border-color: var(--ba-line); padding: 10px 13px;
}
.form-control:focus, .form-select:focus {
    border-color: var(--ba-primary); box-shadow: 0 0 0 3px rgba(13, 71, 161, .12);
}
.form-label { font-weight: 600; font-size: .82rem; margin-bottom: 5px; color: #334155; }
.section-title {
    font-size: .78rem; text-transform: uppercase; letter-spacing: .08em;
    color: var(--ba-primary); font-weight: 700; margin: 8px 0 14px;
}

.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; gap: 12px; flex-wrap: wrap; }
.page-head h4 { font-weight: 800; margin: 0; }
.page-head .crumb { color: var(--ba-muted); font-size: .82rem; }

.empty-state { text-align: center; padding: 50px 20px; color: var(--ba-muted); }
.empty-state i { font-size: 2.4rem; opacity: .4; }

/* profile page */
.profile-cover {
    height: 120px; border-radius: var(--ba-radius) var(--ba-radius) 0 0;
    background: linear-gradient(135deg, var(--ba-primary), var(--ba-primary-2));
}
.info-row { display: flex; padding: 10px 0; border-bottom: 1px dashed var(--ba-line); }
.info-row .k { width: 42%; color: var(--ba-muted); font-size: .84rem; }
.info-row .v { width: 58%; font-weight: 600; font-size: .88rem; }

/* mobile */
.sidebar-backdrop {
    display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, .5); z-index: 1039;
}
@media (max-width: 992px) {
    .sidebar { transform: translateX(-100%); }
    .app-shell.nav-open .sidebar { transform: translateX(0); }
    .app-shell.nav-open .sidebar-backdrop { display: block; }
    .main { margin-left: 0; }
    .topbar .search { display: none; }
}

/* ---------------- Premium polish ---------------- */
.card { transition: box-shadow .18s ease; }
.topbar { box-shadow: 0 1px 0 var(--ba-line), 0 4px 20px rgba(13, 71, 161, .03); }
.topbar .page-title { letter-spacing: -.01em; }
.page-head h4 { letter-spacing: -.02em; font-size: 1.5rem; }
.card-header { font-size: .95rem; letter-spacing: -.01em; }
.btn-primary { letter-spacing: .01em; }
.btn-primary:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 8px 22px rgba(13, 71, 161, .34); }
.btn-light { background: #fff; border: 1px solid var(--ba-line); color: var(--ba-ink); }
.btn-light:hover { background: var(--ba-primary-soft); border-color: var(--ba-primary); color: var(--ba-primary); }
/* Accent (orange) button variant for standout CTAs */
.btn-accent { background: var(--ba-accent); border: none; color: #fff; box-shadow: 0 6px 16px rgba(255,107,0,.28); }
.btn-accent:hover { filter: brightness(1.05); color: #fff; transform: translateY(-1px); }
/* Sidebar scroll aesthetics */
.side-nav::-webkit-scrollbar { width: 6px; }
.side-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 6px; }
/* Links use brand primary */
a { color: var(--ba-primary); }
a:hover { color: var(--ba-primary-2); }
/* Progress bars pick up brand by default */
.progress { background: #eef2f7; border-radius: 20px; }
.progress-bar { background: var(--ba-primary); }
/* Section dividers / labels echo the circuit-line brand motif */
.nav-label { position: relative; }

/* ---------------- Collapsible sidebar ---------------- */
.sidebar .brand .brand-chip {
    background: #fff; border-radius: 11px; padding: 7px 10px; flex: 1; text-align: center;
    min-width: 0; display: flex; align-items: center; justify-content: center;
}
.brand .brand-full { height: 26px; max-width: 100%; display: inline-block; vertical-align: middle; }
.brand .brand-mark { height: 30px; width: 30px; object-fit: contain; display: none; }
.brand .brand-tag {
    background: var(--ba-accent); color: #fff; letter-spacing: 1.5px; font-size: .62rem;
    font-weight: 700; padding: 4px 8px; border-radius: 14px;
}
.sidebar-collapse-btn {
    margin: 6px 12px 14px; padding: 9px 12px; border-radius: 10px;
    background: rgba(255,255,255,.05); border: none; color: #94a3b8;
    display: flex; align-items: center; gap: 12px; font-weight: 500; font-size: .82rem;
    transition: all .15s;
}
.sidebar-collapse-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.sidebar-collapse-btn i { font-size: 1.05rem; width: 20px; text-align: center; }

/* Collapsed state — icons only */
.app-shell.sidebar-collapsed { --sidebar-w: 78px; }
.app-shell.sidebar-collapsed .nav-text,
.app-shell.sidebar-collapsed .nav-label,
.app-shell.sidebar-collapsed .brand-tag,
.app-shell.sidebar-collapsed .brand-full { display: none; }
.app-shell.sidebar-collapsed .brand-mark { display: inline-block; }
.app-shell.sidebar-collapsed .sidebar .brand { justify-content: center; padding: 18px 0; }
.app-shell.sidebar-collapsed .sidebar .brand .brand-chip { flex: 0 0 auto; padding: 6px; }
.app-shell.sidebar-collapsed .side-nav a { justify-content: center; padding: 11px 0; }
.app-shell.sidebar-collapsed .side-nav a i { width: auto; }
.app-shell.sidebar-collapsed .side-nav a.active::before { left: 0; }
.app-shell.sidebar-collapsed .sidebar-collapse-btn { justify-content: center; }
.app-shell.sidebar-collapsed .sidebar-collapse-btn i { transform: rotate(180deg); }
/* Tooltip label on hover when collapsed */
.app-shell.sidebar-collapsed .side-nav a { position: relative; }
.app-shell.sidebar-collapsed .side-nav a:hover::after {
    content: attr(data-label); position: absolute; left: calc(100% + 8px); top: 50%;
    transform: translateY(-50%); background: var(--ba-sidebar-2); color: #fff;
    padding: 6px 10px; border-radius: 8px; font-size: .78rem; white-space: nowrap;
    z-index: 1050; box-shadow: var(--ba-shadow-lg); font-weight: 500;
}
.topbar-toggle { display: none; }
@media (min-width: 993px) { .topbar-toggle { display: inline-flex; } }