:root {
    --tkl-ink: #131a26;
    --tkl-muted: #6b7280;
    --tkl-accent: #b6883c;         /* brass */
    --tkl-accent-2: #d9a75e;
    --tkl-accent-dark: #96702f;
    --tkl-sidebar-1: #141a26;
    --tkl-sidebar-2: #1d2536;
    --tkl-sidebar-ink: #aab3c5;
    --tkl-bg: #f2f4f8;
    --tkl-surface: #ffffff;
    --tkl-border: #e6e9f0;
    --tkl-radius: 14px;
    --tkl-shadow: 0 1px 2px rgba(16,24,40,.04), 0 4px 16px rgba(16,24,40,.06);
    --tkl-shadow-lg: 0 8px 30px rgba(16,24,40,.12);
}

html { font-size: 15px; }
body {
    background: var(--tkl-bg);
    color: var(--tkl-ink);
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    letter-spacing: .01em;
}
h1,h2,h3,h4,h5,h6 { font-weight: 700; letter-spacing: -.015em; }

/* ---------- Login ---------- */
.login-body {
    background:
        radial-gradient(1000px 500px at 85% -10%, rgba(182,136,60,.28), transparent 60%),
        radial-gradient(800px 500px at -10% 110%, rgba(182,136,60,.14), transparent 55%),
        linear-gradient(150deg, #141a26 0%, #232c40 100%);
}
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.login-card {
    background: rgba(255,255,255,.97); width: 100%; max-width: 400px; padding: 2.4rem 2.2rem;
    border-radius: 20px; box-shadow: 0 24px 70px rgba(0,0,0,.4);
    border: 1px solid rgba(255,255,255,.4);
}
.login-brand { text-align: center; margin-bottom: 1.6rem; }
.login-brand h1 { font-size: 1.3rem; margin: .7rem 0 0; }
.login-logo {
    display: inline-grid; place-items: center; width: 56px; height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--tkl-accent-2), var(--tkl-accent-dark));
    color: #fff; font-weight: 800; letter-spacing: .5px;
    box-shadow: 0 8px 20px rgba(182,136,60,.4);
}

/* ---------- App shell ---------- */
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
    width: 250px; flex-shrink: 0;
    background: linear-gradient(180deg, var(--tkl-sidebar-1), var(--tkl-sidebar-2));
    color: var(--tkl-sidebar-ink); display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar-brand {
    display: flex; align-items: center; gap: .65rem; padding: 1.1rem 1rem;
    font-weight: 700; color: #fff; font-size: .98rem;
    border-bottom: 1px solid rgba(255,255,255,.07);
}
.sidebar-brand .login-logo { width: 38px; height: 38px; border-radius: 11px; font-size: .8rem; }
.sidebar-nav { padding: .7rem .65rem 1.2rem; display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav a {
    display: flex; align-items: center; gap: .6rem;
    color: var(--tkl-sidebar-ink); text-decoration: none;
    padding: .5rem .7rem; font-size: .9rem; font-weight: 500;
    border-radius: 9px; border-left: 3px solid transparent;
    transition: background .15s, color .15s;
}
.sidebar-nav a svg { width: 17px; height: 17px; opacity: .75; flex-shrink: 0; }
.sidebar-nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.sidebar-nav a.active {
    background: linear-gradient(90deg, rgba(182,136,60,.22), rgba(182,136,60,.05));
    color: #f2d8a7; border-left-color: var(--tkl-accent);
}
.sidebar-nav a.active svg { opacity: 1; }
.nav-group {
    padding: 1rem .8rem .35rem; font-size: .66rem; text-transform: uppercase;
    letter-spacing: .12em; color: #64708a; font-weight: 700;
}

.app-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.app-topbar {
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(255,255,255,.85); backdrop-filter: blur(8px);
    padding: .8rem 1.6rem; border-bottom: 1px solid var(--tkl-border);
    position: sticky; top: 0; z-index: 100;
}
.topbar-title { font-weight: 700; font-size: 1.02rem; letter-spacing: -.01em; }
.topbar-user { display: flex; align-items: center; font-size: .88rem; color: var(--tkl-muted); }
.app-content { padding: 1.6rem; max-width: 1500px; width: 100%; }

/* ---------- Cards ---------- */
.stat-card {
    background: var(--tkl-surface); border-radius: var(--tkl-radius);
    padding: 1.25rem; box-shadow: var(--tkl-shadow);
    border: 1px solid var(--tkl-border);
}
.stat-card .stat-value { font-size: 1.9rem; font-weight: 800; letter-spacing: -.02em; }
.stat-card .stat-label { color: var(--tkl-muted); font-size: .82rem; font-weight: 500; margin-top: .1rem; }
a .stat-card { transition: transform .15s, box-shadow .15s; }
a .stat-card:hover { transform: translateY(-2px); box-shadow: var(--tkl-shadow-lg); }

/* ---------- Tables ---------- */
.table { --bs-table-hover-bg: #faf7f0; margin-bottom: 0; }
.table thead th {
    font-size: .72rem; text-transform: uppercase; letter-spacing: .06em;
    color: var(--tkl-muted); font-weight: 600; border-bottom-width: 1px;
    background: #f8f9fc !important; padding-top: .65rem; padding-bottom: .65rem;
}
.table td { padding-top: .6rem; padding-bottom: .6rem; border-color: #eef0f5; }
.stat-card.p-0 { overflow: hidden; }

/* ---------- Buttons ---------- */
.btn { border-radius: 9px; font-weight: 600; letter-spacing: .01em; }
.btn-primary {
    background: linear-gradient(135deg, var(--tkl-accent-2), var(--tkl-accent));
    border: none; box-shadow: 0 2px 8px rgba(182,136,60,.35);
}
.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(135deg, var(--tkl-accent), var(--tkl-accent-dark));
    box-shadow: 0 4px 14px rgba(182,136,60,.45);
}
.btn-outline-primary { color: var(--tkl-accent-dark); border-color: var(--tkl-accent); }
.btn-outline-primary:hover { background: var(--tkl-accent); border-color: var(--tkl-accent); }
.btn-success { border-radius: 9px; }

/* ---------- Forms ---------- */
.form-control, .form-select {
    border-radius: 9px; border-color: #dde1ea; padding: .45rem .75rem;
}
.form-control:focus, .form-select:focus {
    border-color: var(--tkl-accent); box-shadow: 0 0 0 .2rem rgba(182,136,60,.18);
}
.form-label { font-weight: 600; font-size: .84rem; color: #3d4453; margin-bottom: .3rem; }

/* ---------- Badges & alerts ---------- */
.badge { border-radius: 999px; font-weight: 600; padding: .38em .7em; letter-spacing: .02em; }
.alert { border-radius: 12px; border: none; box-shadow: var(--tkl-shadow); }

/* ---------- Builder zones ---------- */
.zone .bg-light { background: #f8f9fc !important; }
.zone table input.form-control-sm, .zone table select.form-select-sm { border-color: transparent; background: transparent; }
.zone table input.form-control-sm:hover, .zone table select.form-select-sm:hover { border-color: #dde1ea; background: #fff; }
.zone table input.form-control-sm:focus, .zone table select.form-select-sm:focus { border-color: var(--tkl-accent); background: #fff; }

/* ---------- Modal ---------- */
.modal-content { border-radius: 16px; border: none; box-shadow: var(--tkl-shadow-lg); }
.list-group-item-action:hover { background: #faf7f0; }

/* ---------- Misc ---------- */
details summary::-webkit-details-marker { color: var(--tkl-accent); }
::selection { background: rgba(182,136,60,.25); }