:root {
  --bg: #0c0d10;
  --bg-elevated: #12141a;
  --surface: #181b22;
  --surface-hover: #1e222c;
  --border: #2a303c;
  --text: #eef0f4;
  --muted: #8b93a7;
  --accent: #e8b84a;
  --accent-dim: #a67c2e;
  --green: #34d399;
  --green-bg: rgba(52, 211, 153, 0.12);
  --red: #f87171;
  --red-bg: rgba(248, 113, 113, 0.12);
  --amber: #fbbf24;
  --amber-bg: rgba(251, 191, 36, 0.12);
  --blue: #60a5fa;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --sidebar-w: 240px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: Consolas, "Cascadia Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(900px 500px at 0% -20%, rgba(232, 184, 74, 0.08), transparent 55%),
    radial-gradient(700px 400px at 100% 0%, rgba(96, 165, 250, 0.05), transparent 50%);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  padding: 8px 10px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.brand-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.brand-sub {
  margin: 4px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.nav {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  font-size: 0.92rem;
  margin-bottom: 4px;
}

.nav a:hover {
  background: var(--surface-hover);
  text-decoration: none;
}

.nav a.active {
  background: rgba(232, 184, 74, 0.12);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-foot {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
}

.sidebar-foot strong {
  color: var(--text);
  display: block;
  margin-bottom: 8px;
}

.main {
  flex: 1;
  min-width: 0;
  padding: 24px 28px 48px;
  max-width: 1100px;
}

.page-head {
  margin-bottom: 24px;
}

.page-head h1 {
  margin: 0 0 6px;
  font-size: 1.5rem;
  font-weight: 650;
}

.page-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}

.stat-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.1;
}

.stat-value.accent {
  color: var(--accent);
}

.stat-value.green {
  color: var(--green);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 16px;
  font-size: 1.05rem;
  font-weight: 650;
}

.card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.card-head h2 {
  margin: 0;
}

.sub,
.muted {
  color: var(--muted);
  font-size: 0.88rem;
}

label {
  display: block;
  margin: 0 0 6px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
}

.field {
  margin-bottom: 14px;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(232, 184, 74, 0.15);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.row-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(180deg, #3dd9a8 0%, #00a67e 100%);
  color: #042018;
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-secondary {
  background: var(--surface-hover);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #252932;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 0.82rem;
}

.btn-danger {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(248, 113, 113, 0.35);
  padding: 6px 12px;
  font-size: 0.82rem;
}

.btn-danger:hover {
  background: rgba(248, 113, 113, 0.2);
}

.btn-gold {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dim) 100%);
  color: #1a1205;
}

.btn-copy {
  background: rgba(232, 184, 74, 0.15);
  color: var(--accent);
  border: 1px solid rgba(232, 184, 74, 0.45);
  padding: 6px 14px;
  font-size: 0.82rem;
}

.btn-copy:hover {
  background: rgba(232, 184, 74, 0.28);
}

.code-copyable {
  cursor: pointer;
  border-radius: 4px;
  padding: 2px 4px;
  transition: background 0.15s;
}

.code-copyable:hover {
  background: rgba(96, 165, 250, 0.12);
}

.otp-display.code-copyable {
  padding: 16px;
  display: block;
}

.ttl-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.ttl-chips button {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--muted);
  cursor: pointer;
}

.ttl-chips button:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-size: 0.92rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.flash.ok {
  background: var(--green-bg);
  border: 1px solid rgba(52, 211, 153, 0.35);
  color: var(--green);
}

.flash.err {
  background: var(--red-bg);
  border: 1px solid rgba(248,  113, 113, 0.35);
  color: var(--red);
}

.flash.warn {
  background: var(--amber-bg);
  border: 1px solid rgba(251, 191, 36, 0.35);
  color: var(--amber);
}

.otp-hero {
  text-align: center;
  padding: 8px 0 4px;
}

.otp-hero code.otp-display {
  display: block;
  font-family: var(--mono);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  color: var(--green);
  word-break: break-all;
  padding: 16px;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px dashed rgba(52, 211, 153, 0.4);
  margin: 12px 0;
}

.pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pill.ok {
  background: var(--green-bg);
  color: var(--green);
}

.pill.used {
  background: var(--red-bg);
  color: var(--red);
}

.pill.exp {
  background: var(--amber-bg);
  color: var(--amber);
}

.table-wrap {
  overflow-x: auto;
  margin: 0 -4px;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

table.data th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

table.data tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

table.data code {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--blue);
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-tabs button {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  cursor: pointer;
}

.filter-tabs button.active {
  background: rgba(232, 184, 74, 0.15);
  border-color: var(--accent-dim);
  color: var(--accent);
}

.url-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.url-row:last-child {
  border-bottom: none;
}

.url-row label {
  margin: 0;
  min-width: 72px;
  flex-shrink: 0;
}

.url-row code {
  flex: 1;
  min-width: 0;
  font-size: 0.8rem;
  word-break: break-all;
  color: var(--muted);
}

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px 32px;
  box-shadow: var(--shadow);
}

.auth-brand {
  margin: 0 0 28px;
  text-align: center;
  font-size: 1.15rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.auth-form .field {
  margin-bottom: 16px;
}

.auth-form .field:last-of-type {
  margin-bottom: 22px;
}

.auth-submit {
  width: 100%;
  margin: 0;
  padding: 11px 18px;
}

.auth-flash {
  margin: 0 0 16px;
  font-size: 0.85rem;
  padding: 10px 12px;
}

.empty-state {
  text-align: center;
  padding: 32px 16px;
  color: var(--muted);
}

.search-inline {
  max-width: 220px;
}

.otp-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.otp-toolbar-actions {
  align-items: center;
  border-bottom: none;
  padding-bottom: 8px;
  margin-bottom: 12px;
}

.otp-toolbar form {
  margin: 0;
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.check-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--muted);
  cursor: pointer;
  margin: 0;
}

.check-all input {
  width: auto;
  accent-color: var(--accent);
}

table.data input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
}

.hidden-row-forms {
  display: none;
}

@media (max-width: 900px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .app-shell {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
  }

  .brand {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
    flex: 1;
  }

  .nav {
    display: flex;
    gap: 4px;
    flex: none;
    width: 100%;
  }

  .sidebar-foot {
    border-top: none;
    padding-top: 0;
    width: 100%;
  }

  .main {
    padding: 18px 16px 40px;
  }
}

@media (max-width: 560px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .row,
  .row-3 {
    grid-template-columns: 1fr;
  }
}