:root {
    --k-orange: #F26522;
    --k-orange-dark: #D2541A;
    --k-orange-tint: #FFF3EB;
    --k-ink: #1F2937;
    --k-muted: #6B7280;
    --k-surface: #F9FAFB;
    --k-border: #E5E7EB;
    --k-success: #16A34A;
    --k-warning: #F59E0B;
    --k-danger: #DC2626;
    --k-info: #378ADD;
    --k-sidebar-w: 248px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, system-ui, -apple-system, sans-serif;
    background: var(--k-surface);
    color: var(--k-ink);
    font-size: 14px;
}

a { color: var(--k-orange-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.k-sidebar {
    width: var(--k-sidebar-w);
    background: #fff;
    border-right: 1px solid var(--k-border);
    position: fixed; top: 0; bottom: 0; left: 0;
    display: flex; flex-direction: column;
    z-index: 30;
}
.k-brand {
    display: flex; align-items: center; gap: 10px;
    padding: 18px 20px; border-bottom: 1px solid var(--k-border);
}
.k-brand .k-logo {
    width: 38px; height: 38px; border-radius: 9px;
    background: var(--k-orange); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 20px;
}
.k-brand .k-name { font-weight: 700; font-size: 17px; color: var(--k-ink); line-height: 1.1; }
.k-brand .k-sub { font-size: 11px; color: var(--k-muted); }

.k-nav { padding: 12px 10px; overflow-y: auto; flex: 1; }
.k-nav .k-nav-label { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--k-muted); padding: 14px 12px 6px; }
.k-nav a {
    display: flex; align-items: center; gap: 11px;
    padding: 10px 12px; margin: 2px 0; border-radius: 9px;
    color: var(--k-ink); font-weight: 500; text-decoration: none;
}
.k-nav a .ico { width: 18px; text-align: center; opacity: .8; }
.k-nav a:hover { background: var(--k-orange-tint); color: var(--k-orange-dark); text-decoration: none; }
.k-nav a.active { background: var(--k-orange); color: #fff; }
.k-nav a.active .ico { opacity: 1; }

.k-main { flex: 1; margin-left: var(--k-sidebar-w); display: flex; flex-direction: column; min-width: 0; }
.k-topbar {
    height: 60px; background: #fff; border-bottom: 1px solid var(--k-border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px; position: sticky; top: 0; z-index: 20;
}
.k-topbar h1 { font-size: 18px; margin: 0; font-weight: 600; }
.k-topbar .k-user { display: flex; align-items: center; gap: 10px; color: var(--k-muted); }
.k-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--k-orange-tint); color: var(--k-orange-dark); display: flex; align-items: center; justify-content: center; font-weight: 700; }

.k-content { padding: 24px; }

/* ---------- Cards ---------- */
.k-card { background: #fff; border: 1px solid var(--k-border); border-radius: 14px; padding: 20px; }
.k-card + .k-card { margin-top: 16px; }
.k-card h2 { font-size: 15px; margin: 0 0 14px; font-weight: 600; }

.k-grid { display: grid; gap: 16px; }
.k-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.k-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.k-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1100px) { .k-grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px)  { .k-grid.cols-4, .k-grid.cols-3, .k-grid.cols-2 { grid-template-columns: 1fr; } }

/* ---------- KPI tiles ---------- */
.k-kpi { background: #fff; border: 1px solid var(--k-border); border-radius: 14px; padding: 16px 18px; }
.k-kpi .label { font-size: 12px; color: var(--k-muted); display: flex; align-items: center; gap: 6px; }
.k-kpi .value { font-size: 28px; font-weight: 700; margin-top: 6px; color: var(--k-ink); }
.k-kpi .value.accent { color: var(--k-orange); }
.k-kpi .sub { font-size: 12px; color: var(--k-muted); margin-top: 2px; }

/* ---------- Tables ---------- */
.k-table { width: 100%; border-collapse: collapse; }
.k-table th, .k-table td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--k-border); }
.k-table th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--k-muted); font-weight: 600; }
.k-table tbody tr:hover { background: var(--k-surface); }
.k-table .muted { color: var(--k-muted); font-size: 13px; }

/* ---------- Badges ---------- */
.k-badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.k-badge.pending  { background: #FEF3C7; color: #92400E; }
.k-badge.approved { background: #DCFCE7; color: #166534; }
.k-badge.rejected { background: #FEE2E2; color: #991B1B; }
.k-badge.muted    { background: #F1F5F9; color: #475569; }

/* ---------- Buttons ---------- */
.k-btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 9px 16px; border-radius: 9px; border: 1px solid transparent;
    font-size: 14px; font-weight: 600; cursor: pointer; background: var(--k-surface); color: var(--k-ink);
}
.k-btn:hover { text-decoration: none; }
.k-btn-primary { background: var(--k-orange); color: #fff; }
.k-btn-primary:hover { background: var(--k-orange-dark); color: #fff; }
.k-btn-outline { background: #fff; border-color: var(--k-border); color: var(--k-ink); }
.k-btn-outline:hover { background: var(--k-surface); }
.k-btn-success { background: var(--k-success); color: #fff; }
.k-btn-danger  { background: var(--k-danger); color: #fff; }
.k-btn-sm { padding: 6px 11px; font-size: 13px; }

/* ---------- Forms ---------- */
.k-field { margin-bottom: 14px; }
.k-field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: var(--k-ink); }
.k-field .hint { font-size: 12px; color: var(--k-muted); margin-top: 3px; }
.k-input, .k-select, .k-textarea {
    width: 100%; padding: 10px 12px; border: 1px solid var(--k-border); border-radius: 9px;
    font-size: 14px; font-family: inherit; background: #fff; color: var(--k-ink);
}
.k-input:focus, .k-select:focus, .k-textarea:focus {
    outline: none; border-color: var(--k-orange); box-shadow: 0 0 0 3px rgba(242,101,34,.15);
}
.k-textarea { min-height: 90px; resize: vertical; }
.k-form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 640px) { .k-form-row { grid-template-columns: 1fr; } }

/* ---------- Alerts ---------- */
.k-alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 14px; }
.k-alert-success { background: #DCFCE7; color: #166534; }
.k-alert-error { background: #FEE2E2; color: #991B1B; }
.k-alert-info { background: var(--k-orange-tint); color: var(--k-orange-dark); }

/* ---------- Login ---------- */
.k-login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--k-orange) 0%, var(--k-orange-dark) 100%); padding: 20px; }
.k-login-card { background: #fff; border-radius: 18px; padding: 36px; width: 100%; max-width: 400px; box-shadow: 0 20px 60px rgba(0,0,0,.2); }
.k-login-card .k-logo-lg { width: 60px; height: 60px; border-radius: 14px; background: var(--k-orange); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 30px; margin: 0 auto 14px; }
.k-login-card h1 { text-align: center; font-size: 20px; margin: 0 0 4px; }
.k-login-card .sub { text-align: center; color: var(--k-muted); font-size: 13px; margin-bottom: 24px; }

/* ---------- Misc ---------- */
.k-pager { display: flex; gap: 6px; margin-top: 16px; align-items: center; }
.k-pager a, .k-pager span { padding: 6px 12px; border-radius: 8px; border: 1px solid var(--k-border); background: #fff; color: var(--k-ink); }
.k-pager .current { background: var(--k-orange); color: #fff; border-color: var(--k-orange); }
.k-thumb { width: 54px; height: 54px; border-radius: 8px; object-fit: cover; background: var(--k-surface); border: 1px solid var(--k-border); }
.k-empty { text-align: center; padding: 50px 20px; color: var(--k-muted); }
.k-flex { display: flex; align-items: center; gap: 10px; }
.k-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.text-muted { color: var(--k-muted); }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }