:root {
    --bg-0: #f7f8fb;
    --bg-1: #eef2f7;
    --bg-2: #e2e8f0;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --surface-3: #f1f5f9;
    --text: #0f172a;
    --muted: #475569;
    --accent: #0ea5e9;
    --accent-strong: #0284c7;
    --accent-warm: #f97316;
    --success: #16a34a;
    --danger: #ef4444;
    --border: rgba(15, 23, 42, 0.12);
    --shadow-1: 0 12px 28px rgba(15, 23, 42, 0.08);
    --shadow-2: 0 20px 50px rgba(15, 23, 42, 0.12);
    --ring: 0 0 0 1px rgba(14, 165, 233, 0.25), 0 0 18px rgba(14, 165, 233, 0.18);
    --radius-lg: 18px;
    --radius-md: 14px;
}

:root {
    --bs-body-bg: var(--bg-0);
    --bs-body-color: var(--text);
    --bs-border-color: var(--border);
    --bs-primary: #0ea5e9;
    --bs-secondary: #64748b;
    --bs-success: #16a34a;
    --bs-danger: #ef4444;
    --bs-warning: #f97316;
    --bs-info: #38bdf8;
    --bs-light: #f8fafc;
    --bs-dark: #0f172a;
    --bs-body-font-family: "Fira Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
    background: var(--bg-0);
    color: var(--text);
    font-family: var(--bs-body-font-family);
    text-rendering: optimizeLegibility;
    letter-spacing: 0.1px;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(900px 520px at 12% -5%, rgba(56, 189, 248, 0.18), transparent 60%),
        radial-gradient(860px 520px at 100% 0%, rgba(249, 115, 22, 0.12), transparent 60%),
        linear-gradient(145deg, #f7f8fb, #eef2f7);
    z-index: -2;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background:
        linear-gradient(rgba(15, 23, 42, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.35;
    z-index: -1;
}

a { color: inherit; text-decoration: none; }
+a, button, .nav-link, .quick-card, .filter-chip { cursor: pointer; }

code, pre, .code-font {
    font-family: "Fira Code", "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

+code {
+    background: rgba(226, 232, 240, 0.65);
+    border: 1px solid rgba(148, 163, 184, 0.35);
+    padding: 2px 6px;
+    border-radius: 6px;
+    color: #0f172a;
+}
+
.app-shell { min-height: 100vh; padding-left: 0; padding-right: 0; }
.layout-row { min-height: 100vh; }

.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 1.7;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}
.icon-lg { width: 22px; height: 22px; }
.icon-xl { width: 28px; height: 28px; }

.sidebar {
    width: 280px;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.9);
    border-right: 1px solid var(--border);
    box-shadow: 10px 0 30px rgba(15, 23, 42, 0.06);
    backdrop-filter: blur(16px);
}

.brand {
    font-weight: 700;
    letter-spacing: 0.6px;
    font-family: "Fira Sans", "Segoe UI", sans-serif;
}

.nav-pills .nav-link {
    border-radius: 14px;
    color: var(--text);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.18s ease;
}

.nav-icon { color: var(--muted); }

.nav-pills .nav-link:hover {
    background: rgba(14, 165, 233, 0.12);
    color: #0f172a;
    box-shadow: var(--ring);
}

.nav-pills .nav-link:hover .nav-icon { color: #0f172a; }

.nav-pills .nav-link.active {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(249, 115, 22, 0.12));
    border: 1px solid rgba(14, 165, 233, 0.3);
    box-shadow: var(--ring);
}

.nav-pills .nav-link.active .nav-icon { color: #0f172a; }

.nav-link.disabled { opacity: 0.45; }

.topbar-sticky {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(18px);
}

.hero-block {
    min-height: 176px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.page-title {
    font-family: "Fira Sans", "Segoe UI", sans-serif;
    letter-spacing: 0.4px;
}

.surface-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-1);
}

.card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-1);
}

.stat-card {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 165, 233, 0.2);
    background: linear-gradient(140deg, rgba(14, 165, 233, 0.12), rgba(255, 255, 255, 0.95));
    box-shadow: var(--shadow-1);
}

.stat-value {
    font-size: 30px;
    font-weight: 700;
    font-family: "Fira Sans", "Segoe UI", sans-serif;
    letter-spacing: 1px;
}

.pill {
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: #f8fafc;
    color: #334155;
}

.pill.accent {
    background: rgba(14, 165, 233, 0.12);
    border-color: rgba(14, 165, 233, 0.3);
    color: #0369a1;
}

.badge-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.quick-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface-2);
    padding: 16px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.quick-card:hover {
    transform: translateY(-4px);
    border-color: rgba(14, 165, 233, 0.35);
    box-shadow: var(--shadow-2);
}

.hero-panel {
    border-radius: 22px;
    padding: 26px;
    border: 1px solid rgba(14, 165, 233, 0.22);
    background: radial-gradient(120% 120% at 0% 0%, rgba(14, 165, 233, 0.16), transparent 55%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.98));
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-2);
}

.hero-panel::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.12);
    top: -80px;
    right: -60px;
    filter: blur(2px);
}

.text-secondary { color: var(--muted) !important; }

.btn {
    border-radius: 12px;
    font-weight: 600;
    letter-spacing: 0.2px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-outline-primary {
    border-color: rgba(14, 165, 233, 0.45);
    color: #0284c7;
    background: #ffffff;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.9), rgba(56, 189, 248, 0.9));
    border-color: rgba(14, 165, 233, 0.9);
    color: #ffffff;
    box-shadow: var(--ring);
}

.btn-outline-secondary,
.btn-outline-dark {
    border-color: rgba(148, 163, 184, 0.5) !important;
    color: var(--text);
    background: #ffffff;
}

.btn-outline-secondary:hover,
.btn-outline-dark:hover {
    border-color: rgba(14, 165, 233, 0.4) !important;
    background: rgba(14, 165, 233, 0.08);
    color: #0f172a;
}

.btn-outline-light {
    border-color: rgba(148, 163, 184, 0.45);
    color: var(--text);
    background: #ffffff;
}

.btn-sm {
    padding: 6px 10px;
    font-size: 12px;
}

.form-control,
.form-select {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.45);
    color: var(--text);
}

.form-control::placeholder { color: rgba(100, 116, 139, 0.8); }

.form-control:focus,
.form-select:focus {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.7);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.18);
    color: var(--text);
}

.input-group-text {
    background: #ffffff;
    border-color: rgba(148, 163, 184, 0.45);
    color: var(--muted);
}

.form-check-input {
    background-color: #ffffff;
    border-color: rgba(148, 163, 184, 0.5);
}

.form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

.badge {
    font-weight: 600;
    border-radius: 999px;
    letter-spacing: 0.3px;
}

.text-bg-light {
    background: rgba(226, 232, 240, 0.7) !important;
    color: #0f172a !important;
}

.text-bg-dark {
    background: #0f172a !important;
    color: #ffffff !important;
}

.text-bg-primary-subtle {
    background: rgba(14, 165, 233, 0.15) !important;
    color: #0284c7 !important;
    border-color: rgba(14, 165, 233, 0.35) !important;
}

.bg-primary-subtle { background: rgba(14, 165, 233, 0.15) !important; }
.text-primary { color: #0284c7 !important; }
.border-primary-subtle { border-color: rgba(14, 165, 233, 0.35) !important; }

.text-bg-success-subtle {
    background: rgba(34, 197, 94, 0.16) !important;
    color: #15803d !important;
    border-color: rgba(34, 197, 94, 0.35) !important;
}

.bg-success-subtle { background: rgba(34, 197, 94, 0.16) !important; }
.text-success { color: #15803d !important; }
.border-success-subtle { border-color: rgba(34, 197, 94, 0.35) !important; }

.text-bg-danger-subtle {
    background: rgba(239, 68, 68, 0.16) !important;
    color: #b91c1c !important;
    border-color: rgba(239, 68, 68, 0.35) !important;
}

.bg-danger-subtle { background: rgba(239, 68, 68, 0.16) !important; }
.text-danger { color: #b91c1c !important; }
.border-danger-subtle { border-color: rgba(239, 68, 68, 0.35) !important; }

.toast {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: var(--shadow-1);
}

.modal-content {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.35);
    color: var(--text);
    box-shadow: var(--shadow-2);
}

.modal-header,
.modal-footer {
    border-color: rgba(148, 163, 184, 0.25);
}

.btn-close {
    filter: none;
    opacity: 0.6;
}

.btn-close:hover { opacity: 1; }

.fade-up {
    animation: fadeUp 0.6s ease both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes glowPulse {
    0% { box-shadow: 0 0 0 rgba(14, 165, 233, 0.0); }
    50% { box-shadow: 0 0 18px rgba(14, 165, 233, 0.35); }
    100% { box-shadow: 0 0 0 rgba(14, 165, 233, 0.0); }
}

@media (max-width: 991px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .layout-row { flex-direction: column; }
}

@media (max-width: 767px) {
    .hero-panel { padding: 20px; }
    .stat-value { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}