:root {
  /* Palet inti */
  --ink: #071b30;
  --ink-2: #0d2b47;
  --primary: #1d4ed8;
  --primary-600: #2563eb;
  --primary-400: #60a5fa;
  --accent: #22d3ee;
  --accent-600: #06b6d4;
  --bg: #eef2f7;
  --bg-2: #e6ecf4;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --muted: #64748b;
  --muted-2: #94a3b8;

  --waiting: #f59e0b;
  --called: #2563eb;
  --completed: #16a34a;
  --cancelled: #dc2626;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(7, 27, 48, 0.06);
  --shadow:
    0 1px 2px rgba(7, 27, 48, 0.05), 0 10px 30px -12px rgba(7, 27, 48, 0.18);
  --shadow-lg: 0 24px 60px -20px rgba(7, 27, 48, 0.35);
  --ring: 0 0 0 3px rgba(37, 99, 235, 0.35);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* Latar bertekstur titik-titik: kesan topologi jaringan terdistribusi. */
  background-color: var(--bg);
  background-image:
    radial-gradient(
      circle at 12% -10%,
      rgba(34, 211, 238, 0.12),
      transparent 42%
    ),
    radial-gradient(circle at 100% 0%, rgba(37, 99, 235, 0.1), transparent 40%),
    radial-gradient(rgba(13, 43, 71, 0.06) 1px, transparent 1px);
  background-size:
    auto,
    auto,
    22px 22px;
  min-height: 100vh;
}

a {
  color: var(--primary-600);
  text-underline-offset: 3px;
}

:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: 8px;
}

/* ---------- Navbar ---------- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 24px;
  background: rgba(7, 27, 48, 0.85);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(34, 211, 238, 0.18);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  backdrop-filter: saturate(140%) blur(10px);
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 11px;
  color: #fff;
  text-decoration: none;
  flex-shrink: 0;
}
.brand .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);
  animation: pulse 2.4s infinite;
}
.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar {
  display: none;
}
.nav-links a {
  color: #b9c6d6;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 8px;
  white-space: nowrap;
  transition:
    color 0.15s ease,
    background 0.15s ease;
}
.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
}
.nav-links a.active {
  color: #fff;
  background: rgba(34, 211, 238, 0.16);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55);
  }
  70% {
    box-shadow: 0 0 0 9px rgba(34, 211, 238, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0);
  }
}

/* ---------- Layout ---------- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}
.container-wide {
  max-width: 1180px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent-600);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin: 0 0 12px;
}
h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: -0.2px;
  margin: 0 0 16px;
}
.lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 58ch;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  padding: 44px 36px;
  color: #fff;
  background:
    radial-gradient(
      circle at 85% 20%,
      rgba(34, 211, 238, 0.22),
      transparent 45%
    ),
    linear-gradient(150deg, var(--ink), var(--ink-2) 70%, #123456);
  box-shadow: var(--shadow-lg);
}
.hero .eyebrow {
  color: var(--accent);
}
.hero .lead {
  color: #a9c4e0;
}
/* Grid topologi halus di dalam hero */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(circle at 80% 30%, #000, transparent 70%);
  mask-image: radial-gradient(circle at 80% 30%, #000, transparent 70%);
  pointer-events: none;
}
.hero > * {
  position: relative;
  z-index: 1;
}

/* ---------- Cards ---------- */
.grid {
  display: grid;
  gap: 18px;
}
.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
}
.card h2 {
  margin-top: 0;
}
.card-hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.stat {
  position: relative;
}
.stat .num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -1px;
  font-variant-numeric: tabular-nums;
}
.stat .label {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 8px;
  font-weight: 500;
}
.stat.accent-waiting .num {
  color: var(--waiting);
}
.stat.accent-called .num {
  color: var(--called);
}
.stat.accent-completed .num {
  color: var(--completed);
}
.stat.accent-cancelled .num {
  color: var(--cancelled);
}

/* ---------- Tiket / nomor besar ---------- */
.ticket {
  position: relative;
  text-align: center;
  background:
    radial-gradient(
      circle at 50% 0%,
      rgba(34, 211, 238, 0.18),
      transparent 60%
    ),
    linear-gradient(160deg, var(--ink), var(--ink-2));
  color: #fff;
  border-radius: var(--radius);
  padding: 30px 24px;
  overflow: hidden;
}
/* Takik tiket kiri-kanan seperti tiket fisik */
.ticket::before,
.ticket::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 22px;
  height: 22px;
  background: var(--bg);
  border-radius: 50%;
  transform: translateY(-50%);
}
.ticket::before {
  left: -11px;
}
.ticket::after {
  right: -11px;
}
.ticket .num {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 12vw, 4.4rem);
  font-weight: 700;
  letter-spacing: 5px;
  line-height: 1.05;
  text-shadow: 0 0 26px rgba(34, 211, 238, 0.45);
  font-variant-numeric: tabular-nums;
}
.ticket .sub {
  color: #9fc3e8;
  font-size: 0.88rem;
  letter-spacing: 0.3px;
}
.ticket .divider {
  border: none;
  border-top: 1.5px dashed rgba(255, 255, 255, 0.25);
  margin: 18px -8px;
}

/* ---------- Badge instance (SIGNATURE) ---------- */
.served-by {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  background: rgba(34, 211, 238, 0.12);
  color: #0e7490;
  border: 1px solid rgba(34, 211, 238, 0.4);
  padding: 6px 13px;
  border-radius: 999px;
  transition: background 0.2s ease;
}
.served-by .node {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-600);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);
  animation: pulse 2s infinite;
}
/* Versi terang untuk di atas latar gelap */
.served-by.on-dark {
  background: rgba(34, 211, 238, 0.14);
  color: #7ee8f7;
  border-color: rgba(34, 211, 238, 0.45);
}

/* ---------- Status badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
}
.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.badge.waiting {
  background: #fef3c7;
  color: #92400e;
}
.badge.called {
  background: #dbeafe;
  color: #1e40af;
}
.badge.completed {
  background: #dcfce7;
  color: #166534;
}
.badge.cancelled {
  background: #fee2e2;
  color: #991b1b;
}

/* ---------- Form ---------- */
label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  margin: 16px 0 7px;
  color: var(--ink);
}
input,
select {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--surface);
  color: var(--ink);
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}
input::placeholder {
  color: var(--muted-2);
}
input:focus,
select:focus {
  outline: none;
  border-color: var(--primary-600);
  box-shadow: var(--ring);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  min-height: 44px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 0.06s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    opacity 0.2s ease;
}
.btn:active {
  transform: translateY(1px);
}
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn-primary {
  background: linear-gradient(180deg, var(--primary-600), var(--primary));
  color: #fff;
  box-shadow: 0 8px 18px -8px rgba(37, 99, 235, 0.7);
}
.btn-primary:hover {
  box-shadow: 0 12px 22px -8px rgba(37, 99, 235, 0.8);
}
.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  background: var(--surface-2);
}
.btn-block {
  width: 100%;
}
.btn-sm {
  padding: 7px 13px;
  min-height: 34px;
  font-size: 0.8rem;
}
.btn-call {
  background: var(--called);
  color: #fff;
}
.btn-finish {
  background: var(--completed);
  color: #fff;
}
.btn-cancel {
  background: var(--cancelled);
  color: #fff;
}

/* ---------- Table ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th,
td {
  text-align: left;
  padding: 13px 14px;
  border-bottom: 1px solid var(--border);
}
thead th {
  position: sticky;
  top: 0;
  background: var(--surface-2);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  z-index: 1;
}
tbody tr {
  transition: background 0.12s ease;
}
tbody tr:hover {
  background: var(--surface-2);
}
tbody tr:last-child td {
  border-bottom: none;
}
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- Chips layanan ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 500;
}
.chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-600);
}

/* ---------- Skeleton loader ---------- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: #e9eef4;
  border-radius: 8px;
  color: transparent !important;
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.6),
    transparent
  );
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

/* ---------- Toast ---------- */
.toast-wrap {
  position: fixed;
  bottom: 22px;
  right: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
  max-width: min(92vw, 360px);
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--ink);
  color: #fff;
  padding: 13px 16px;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  animation: slidein 0.22s ease;
  border-left: 4px solid var(--accent);
}
.toast::before {
  content: "i";
  flex: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  display: grid;
  place-items: center;
}
.toast.success {
  border-left-color: var(--completed);
}
.toast.success::before {
  content: "\2713";
  background: var(--completed);
  color: #fff;
}
.toast.error {
  border-left-color: var(--cancelled);
}
.toast.error::before {
  content: "!";
  background: var(--cancelled);
  color: #fff;
}
@keyframes slidein {
  from {
    transform: translateX(20px);
    opacity: 0;
  }
  to {
    transform: none;
    opacity: 1;
  }
}

/* ---------- Monitoring: cluster node ---------- */
.node-card {
  text-align: center;
  position: relative;
}
.node-card .led {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.node-card .led::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.node-card .name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 6px 0 2px;
  letter-spacing: -0.3px;
}
.node-card.online {
  border-top: 3px solid var(--completed);
}
.node-card.online .led {
  color: var(--completed);
}
.node-card.online .led::before {
  background: var(--completed);
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.5);
  animation: pulse-green 2s infinite;
}
.node-card.offline {
  border-top: 3px solid var(--cancelled);
  opacity: 0.65;
}
.node-card.offline .led {
  color: var(--cancelled);
}
.node-card.offline .led::before {
  background: var(--cancelled);
}
@keyframes pulse-green {
  0% {
    box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.5);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(22, 163, 74, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(22, 163, 74, 0);
  }
}
.node-meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  margin-top: 12px;
  line-height: 1.8;
  text-align: left;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}
.node-meta b {
  color: var(--ink);
  font-weight: 600;
}
.node-hits {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-600);
  font-variant-numeric: tabular-nums;
}
.node-hits span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--muted);
}

.log-stream {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: #06121f;
  color: #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  max-height: 340px;
  overflow-y: auto;
  border: 1px solid rgba(34, 211, 238, 0.15);
}
.log-stream div {
  padding: 3px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.log-stream .m {
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Empty state ---------- */
.empty {
  text-align: center;
  color: var(--muted);
  padding: 32px 16px;
  font-size: 0.9rem;
}

/* ---------- Utilities ---------- */
.muted {
  color: var(--muted);
}
.mt {
  margin-top: 24px;
}
.mt-sm {
  margin-top: 12px;
}
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.row-end {
  align-items: flex-end;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hidden {
  display: none !important;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  padding: 36px 20px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}
footer .mono {
  color: var(--muted-2);
}

@media (max-width: 900px) {
  .container {
    padding: 32px 18px 60px;
  }
  .hero {
    padding: 38px 26px;
  }
  h1 {
    font-size: clamp(1.7rem, 6vw, 2.2rem);
  }
}

@media (max-width: 640px) {
  .navbar {
    padding: 12px 16px;
  }
  .container {
    padding: 24px 14px 52px;
  }
  .hero {
    padding: 28px 18px;
    border-radius: 16px;
  }
  .nav-links a {
    padding: 6px 9px;
    font-size: 0.82rem;
  }
  .lead {
    font-size: 0.98rem;
  }
  .card {
    padding: 18px;
  }
  .stat .num {
    font-size: 2rem;
  }
  /* Baris tombol/kontrol menumpuk dan memenuhi lebar pada layar kecil. */
  .row {
    flex-direction: column;
    align-items: stretch;
  }
  .row .btn,
  .row a.btn {
    width: 100%;
  }
  /* Kecualikan navbar & badge agar tetap sebaris. */
  .navbar {
    flex-direction: row;
  }
  .served-by {
    align-self: flex-start;
  }
}

@media (max-width: 400px) {
  .ticket .num {
    letter-spacing: 3px;
  }
  .brand {
    font-size: 1.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}