:root {
  --bg: #f3f1ed;
  --ink: #121315;
  --muted: #6d7075;
  --line: rgba(18, 19, 21, 0.12);
  --panel: rgba(255, 255, 255, 0.74);
  --panel-solid: #fffefb;
  --dark: #111315;
  --dark-muted: rgba(255, 255, 255, 0.72);
  --accent: #0f62fe;
  --danger: #9f2424;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 26px 80px rgba(17, 19, 21, 0.1);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 98, 254, 0.08), transparent 34rem),
    linear-gradient(135deg, #f8f7f4 0%, var(--bg) 52%, #ece8e0 100%);
  font-family: "Sarabun", "Noto Sans Thai", "Leelawadee UI", "TH Sarabun New", "Segoe UI", Tahoma, sans-serif;
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

.admin-shell {
  width: min(100% - 32px, 1480px);
  margin: 0 auto;
  padding: 28px 0 64px;
}

.admin-hero {
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.52);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.admin-hero__top,
.panel-head,
.actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.admin-hero h1,
.panel h2 {
  margin: 0;
  letter-spacing: -0.045em;
}

.admin-hero h1 {
  font-size: clamp(48px, 7vw, 112px);
  line-height: 0.92;
}

.admin-hero__lead {
  max-width: 820px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 24px);
  line-height: 1.65;
}

.auth-panel,
.token-panel {
  display: grid;
  gap: 18px;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.62);
}

.auth-panel {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.auth-panel h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 42px);
  letter-spacing: -0.045em;
}

.auth-panel p,
.token-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.auth-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
}

.google-button-slot {
  min-height: 40px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.system-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.admin-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 24px;
  margin-top: 24px;
}

.admin-main,
.admin-side {
  display: grid;
  align-content: start;
  gap: 24px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel--dark {
  color: white;
  background: var(--dark);
}

.panel--dark .eyebrow,
.panel--dark p {
  color: var(--dark-muted);
}

.admin-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-grid--compact {
  grid-template-columns: repeat(2, minmax(160px, 1fr));
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 15px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  outline: none;
  font-size: 15px;
}

textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.65;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(15, 98, 254, 0.48);
  box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.08);
}

.button {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 20px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.button--primary {
  border-color: var(--dark);
  color: white;
  background: var(--dark);
}

.button--ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.64);
}

.button--danger {
  border-color: rgba(159, 36, 36, 0.3);
  color: white;
  background: var(--danger);
}

.button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.preview-list,
.result-box {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.chunk-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px;
  background: var(--panel-solid);
}

.chunk-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.chunk-card p,
.muted,
.panel p {
  color: var(--muted);
  line-height: 1.65;
}

.chunk-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chunk-meta span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

pre {
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  background: #101214;
  color: #e9edf2;
  white-space: pre-wrap;
  word-break: break-word;
}

@media (max-width: 1040px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .admin-shell {
    width: min(100% - 20px, 1480px);
    padding-top: 10px;
  }

  .admin-hero,
  .panel {
    padding: 22px;
    border-radius: 24px;
  }

  .admin-hero__top,
  .panel-head,
  .actions,
  .auth-panel,
  .auth-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .auth-panel {
    grid-template-columns: 1fr;
  }

  .form-grid,
  .form-grid--compact {
    grid-template-columns: 1fr;
  }
}