:root {
  --color-bg: #fffbea;
  --color-bg-warm: #fffad8;
  --color-surface: #ffffff;
  --color-border: #ecdfa8;
  --color-text: #2b2410;
  --color-text-muted: #857a4d;
  --color-primary: #e8823a;
  --color-primary-dark: #c96a26;
  --color-primary-contrast: #ffffff;
  --color-green: #5b9a44;
  --color-green-dark: #457934;
  --color-yellow: #f0b429;
  --color-danger: #d64545;
  --color-danger-dark: #b53434;
  --color-success: #5b9a44;
  --color-warning: #d97706;
  --color-gold: #e0a933;
  --color-silver: #9aa1ac;
  --color-bronze: #b0692f;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 2px 8px rgba(120, 90, 20, 0.08), 0 1px 2px rgba(120, 90, 20, 0.06);
  --header-height: 64px;
  --nav-size: 76px;
  --sidebar-width: 220px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

button, input, select {
  font-family: inherit;
  font-size: 1rem;
}

a {
  color: var(--color-primary);
}

a:hover {
  color: var(--color-primary-dark);
}

h1, h2, h3 {
  margin: 0 0 0.75rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h1 { font-size: 1.45rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }

p { margin: 0 0 0.75rem; }

/* ---------- App shell ---------- */

.app {
  min-height: 100%;
  display: grid;
  grid-template-areas: "header" "content";
  grid-template-rows: var(--header-height) 1fr;
  grid-template-columns: minmax(0, 1fr);
}

.app-header {
  grid-area: header;
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.app-header.festive {
  position: sticky;
  background: linear-gradient(120deg, var(--color-bg-warm) 0%, var(--color-surface) 65%);
}

.app-header.festive::before,
.app-header.festive::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.16;
}

.app-header.festive::before {
  width: 120px;
  height: 120px;
  background: var(--color-green);
  top: -60px;
  right: 40px;
}

.app-header.festive::after {
  width: 90px;
  height: 90px;
  background: var(--color-yellow);
  top: -50px;
  right: 140px;
}

.wave-divider {
  grid-area: header;
  align-self: end;
  height: 10px;
  margin-top: var(--header-height);
  background-image: linear-gradient(135deg, var(--color-green) 25%, transparent 25%),
    linear-gradient(225deg, var(--color-yellow) 25%, transparent 25%),
    linear-gradient(315deg, var(--color-primary) 25%, transparent 25%),
    linear-gradient(45deg, var(--color-green) 25%, transparent 25%);
  background-position: 0 0, 10px 0, 10px 0, 0 0;
  background-size: 20px 20px;
  background-repeat: repeat-x;
  opacity: 0.55;
  z-index: 19;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 800;
  font-size: 1.1rem;
  white-space: nowrap;
  position: relative;
}

.brand-icon { font-size: 1.4rem; }

.lock-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
  min-width: 0;
  overflow-x: auto;
  position: relative;
}

.lock-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: #eef4e7;
  color: var(--color-green-dark);
  white-space: nowrap;
}

.lock-chip .dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-green);
}

.lock-chip.locked .dot { background: var(--color-danger); }
.lock-chip.locked { color: var(--color-danger-dark); background: #fbeaea; }

.icon-btn {
  border: none;
  background: transparent;
  font-size: 1.15rem;
  line-height: 1;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
}

.icon-btn:hover { background: var(--color-bg-warm); }

.header-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--color-bg-warm);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
}

.header-link:hover { background: var(--color-border); }

.content {
  grid-area: content;
  padding: 1rem;
  padding-bottom: calc(var(--nav-size) + 1rem);
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

/* ---------- Nav: bottom tab bar (mobile-first default) ---------- */

.nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  display: flex;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  padding: 0.5rem 0.25rem;
  min-height: 44px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.7rem;
  font-weight: 700;
}

.nav-icon { font-size: 1.25rem; }

.nav-item.active {
  color: var(--color-primary);
}

/* ---------- Wide viewport: sidebar nav ---------- */

@media (min-width: 768px) {
  .app {
    grid-template-areas: "header header" "nav content";
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  }

  .nav {
    position: static;
    grid-area: nav;
    flex-direction: column;
    border-top: none;
    border-right: 1px solid var(--color-border);
    padding: 1rem 0.5rem;
    gap: 0.25rem;
    height: calc(100vh - var(--header-height));
  }

  .nav-item {
    flex-direction: row;
    justify-content: flex-start;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
  }

  .nav-item.active {
    background: var(--color-bg-warm);
  }

  .content {
    padding: 1.5rem 2rem;
    padding-bottom: 1.5rem;
    max-width: 1100px;
  }
}

/* ---------- Cards, sections ---------- */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem;
  margin-bottom: 1rem;
}

.activity-card {
  padding: 0.75rem 1rem;
}

.activity-card > .muted {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 8rem;
  overflow-y: auto;
  font-size: 0.82rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--color-text-muted);
}

.activity-list li {
  padding: 0.15rem 0;
}

.activity-list .activity-error {
  color: var(--color-danger);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tab-btn {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--color-text-muted);
}

.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-contrast);
}

.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem 1rem;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  min-height: 44px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  background: var(--color-bg-warm);
  color: var(--color-text);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.btn-primary:hover { background: var(--color-primary-dark); }

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}

.btn-danger:hover { background: var(--color-danger-dark); }

.btn-secondary {
  background: var(--color-surface);
  border-color: var(--color-border);
}

.btn-sm {
  min-height: 36px;
  padding: 0.35rem 0.8rem;
  font-size: 0.82rem;
}

.btn-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .form-grid.cols-2 { grid-template-columns: 1fr 1fr; }
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.field input, .field select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  min-height: 44px;
}

.field input:focus, .field select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.field-error {
  color: var(--color-danger);
  font-size: 0.78rem;
  margin-top: 0.25rem;
}

/* ---------- Toggle switch ---------- */

.switch-field {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.switch-field label {
  margin-bottom: 0;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 26px;
  flex-shrink: 0;
  cursor: pointer;
}

.switch input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  margin: 0;
  padding: 0;
  border: none;
  cursor: pointer;
}

.switch-track {
  position: absolute;
  inset: 0;
  background: var(--color-border);
  border-radius: 999px;
  transition: background 0.15s ease;
  pointer-events: none;
}

.switch-track::before {
  content: "";
  position: absolute;
  height: 20px;
  width: 20px;
  left: 3px;
  top: 3px;
  background: var(--color-surface);
  border-radius: 50%;
  transition: transform 0.15s ease;
  box-shadow: var(--shadow);
}

.switch input:checked ~ .switch-track {
  background: var(--color-primary);
}

.switch input:checked ~ .switch-track::before {
  transform: translateX(18px);
}

.switch input:focus-visible ~ .switch-track {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.notice-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--color-bg-warm);
  color: var(--color-primary-dark);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  margin-bottom: 0.85rem;
  font-size: 0.85rem;
  font-weight: 700;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

/* ---------- Responsive data table ---------- */

.rt-wide { display: none; }
.rt-narrow { display: block; }

@media (min-width: 768px) {
  .rt-wide { display: block; overflow-x: auto; }
  .rt-narrow.card-list { display: none; }
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th, .data-table td {
  text-align: left;
  padding: 0.6rem 0.65rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.88rem;
}

.data-table th {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.data-table tbody tr:hover { background: var(--color-bg); }

.row-actions {
  display: flex;
  gap: 0.4rem;
  justify-content: flex-end;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.card-row {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.85rem;
  background: var(--color-surface);
}

.card-row-field {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.2rem 0;
  font-size: 0.88rem;
}

.card-row-field .k {
  color: var(--color-text-muted);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.card-row-actions {
  display: flex;
  gap: 0.4rem;
  justify-content: flex-end;
  margin-top: 0.5rem;
}

/* ---------- Rank badges ---------- */

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.85rem;
  height: 1.85rem;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.85rem;
  background: var(--color-bg-warm);
  color: var(--color-text-muted);
}

.rank-badge.rank-1 { background: var(--color-gold); color: #fff; }
.rank-badge.rank-2 { background: var(--color-silver); color: #fff; }
.rank-badge.rank-3 { background: var(--color-bronze); color: #fff; }

/* ---------- Modal ---------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(43, 36, 16, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  padding: 0;
}

@media (min-width: 560px) {
  .modal-backdrop {
    align-items: center;
    padding: 1rem;
  }
}

.modal {
  background: var(--color-surface);
  width: 100%;
  max-width: 480px;
  max-height: 92vh;
  overflow-y: auto;
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 1.25rem;
}

@media (min-width: 560px) {
  .modal { border-radius: var(--radius); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

/* ---------- Toasts ---------- */

.toast-root {
  position: fixed;
  bottom: calc(var(--nav-size) + 1rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: min(92vw, 420px);
}

@media (min-width: 768px) {
  .toast-root { bottom: 1.25rem; }
}

.toast {
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow);
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-text);
}

.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-danger); }

/* ---------- API key gate ---------- */

.gate-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: radial-gradient(circle at 15% 15%, var(--color-bg-warm), var(--color-bg) 55%);
}

.gate-card {
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.gate-card .brand-icon { font-size: 2.4rem; }

/* ---------- Decorative blobs (festive pages) ---------- */

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

/* ---------- Utility ---------- */

.muted { color: var(--color-text-muted); }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.hidden { display: none !important; }