/* ============================================================================
   AniTracker Developer Portal — design system
   Style:      Dark Mode (OLED-leaning), high-contrast, operations dashboard
   Type:       Fira Sans (UI) + Fira Code (data / numerals)
   Density:    Dense dashboard (2/4/8/12/16/20/24/32 spacing rhythm)
   Motion:     Subtle (≤180ms), fully disabled under prefers-reduced-motion
   Accent:     Indigo for interaction; green / amber / red reserved for status
   ============================================================================ */

:root {
  /* Surfaces — near-black base, three raised steps */
  --bg:            #05070e;
  --surface-1:     #0b0f1a;   /* sidebar, topbar */
  --surface-2:     #10151f;   /* cards */
  --surface-3:     #161c28;   /* list rows, inputs, hovers */
  --surface-3-hover:#1c2331;

  /* Lines */
  --border:        #232b3b;
  --border-strong: #313b4f;

  /* Text */
  --text:          #edf0f7;
  --text-muted:    #9aa4b8;   /* ~8.5:1 on --surface-2 */
  --text-faint:    #757f95;   /* timestamps, hints — ~5:1 on --surface-2 */

  /* Interaction accent (never used to signal status) */
  --accent:        #6e8bff;
  --accent-hover:  #8aa1ff;
  --accent-text:   #aab8ff;   /* accent as on-dark text (links, active nav) */
  --accent-contrast:#05070e;  /* text on a solid accent fill */
  --accent-soft:   rgba(110, 139, 255, 0.13);
  --accent-line:   rgba(110, 139, 255, 0.38);

  /* Status */
  --success:       #34d399;
  --success-soft:  rgba(52, 211, 153, 0.13);
  --warning:       #fbbf24;
  --warning-soft:  rgba(251, 191, 36, 0.13);
  --danger:        #fb7185;
  --danger-soft:   rgba(251, 113, 133, 0.13);
  --danger-solid:  #e11d48;
  --danger-solid-hover:#f43f5e;

  /* Radii */
  --r-sm: 6px;
  --r-md: 9px;
  --r-lg: 13px;
  --r-full: 999px;

  /* Spacing rhythm (dense) */
  --s-1: 2px;
  --s-2: 4px;
  --s-3: 8px;
  --s-4: 12px;
  --s-5: 16px;
  --s-6: 20px;
  --s-7: 24px;
  --s-8: 32px;
  --s-9: 40px;

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);

  --font-sans: 'Fira Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, 'SF Mono', 'Cascadia Code', Menlo, monospace;

  --dur: 140ms;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);

  color-scheme: dark;
}

* { box-sizing: border-box; }

/* Authoritative visibility rule: an author stylesheet's own `display`
   declaration (e.g. `.login-screen { display: flex }`, `.app { display: flex }`)
   otherwise beats the UA stylesheet's `[hidden] { display: none }` at equal
   specificity, since normal author rules always outrank normal UA rules in
   the cascade — regardless of source order. That let #login-screen and #app
   render simultaneously, stacked in flow, whichever one had `hidden` set.
   !important here forces `hidden` to always win, making the two containers'
   visibility states properly mutually exclusive. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent-soft); color: var(--text); }

/* Dark scrollbars so the chrome doesn't glow white on scroll */
* { scrollbar-color: var(--border-strong) transparent; scrollbar-width: thin; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--r-full);
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: #3f4a63; background-clip: content-box; }

#blob-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(620px 420px at 8% -12%, rgba(110, 139, 255, 0.14), transparent 60%),
    radial-gradient(700px 520px at 112% 6%, rgba(52, 211, 153, 0.07), transparent 60%),
    radial-gradient(520px 420px at 50% 122%, rgba(110, 139, 255, 0.06), transparent 60%);
}

button { font-family: inherit; }

/* Single, consistent keyboard-focus treatment for every control */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

h1, h2, h3 { font-family: var(--font-sans); font-weight: 600; }

/* ---------- Login ---------- */
.login-screen {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-6);
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--s-8) var(--s-7);
}

.login-sub {
  color: var(--text-muted);
  margin: var(--s-1) 0 var(--s-7);
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.brand { display: flex; align-items: center; gap: var(--s-3); margin-bottom: var(--s-2); }
.brand-mark {
  color: var(--accent);
  font-size: 20px;
  line-height: 1;
  text-shadow: 0 0 14px rgba(110, 139, 255, 0.55);
}
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: 0.01em; }

#login-form label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin: var(--s-4) 0 var(--s-2);
}

label {
  font-size: 12px;
  color: var(--text-muted);
}

input, select, textarea {
  width: 100%;
  background: var(--surface-3);
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-4);
  font-size: 14px;
  font-family: inherit;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
input::placeholder, textarea::placeholder { color: var(--text-faint); }
input:hover, select:hover, textarea:hover { border-color: #3c485f; }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  outline: none;
}
textarea { resize: vertical; min-height: 68px; }
select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
                    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: right 15px center, right 10px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: var(--s-8);
}

.btn {
  --btn-bg: var(--surface-3);
  --btn-fg: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-3);
  border: 1px solid transparent;
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-5);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  min-height: 36px;
  cursor: pointer;
  background: var(--btn-bg);
  color: var(--btn-fg);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn[disabled]:active { transform: none; }

.btn-block { width: 100%; margin-top: var(--s-6); }

.btn-primary {
  --btn-bg: var(--accent);
  --btn-fg: var(--accent-contrast);
  font-weight: 700;
}
.btn-primary:not([disabled]):hover { background: var(--accent-hover); }

.btn-danger {
  --btn-bg: var(--danger-solid);
  --btn-fg: #fff;
}
.btn-danger:not([disabled]):hover { background: var(--danger-solid-hover); }

.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--text-muted);
  border-color: var(--border-strong);
}
.btn-ghost:not([disabled]):hover {
  --btn-fg: var(--text);
  background: var(--surface-3);
  border-color: #3c485f;
}

.btn-small { padding: var(--s-2) var(--s-3); min-height: 28px; font-size: 12px; }

/* Inline spinner for async buttons (toggled from app.js via .is-loading) */
.btn.is-loading { pointer-events: none; opacity: 0.8; }
.btn.is-loading::before {
  content: "";
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: btn-spin 0.6s linear infinite;
}

.error-text {
  color: var(--danger);
  font-size: 13px;
  margin-top: var(--s-4);
  padding: var(--s-3) var(--s-4);
  background: var(--danger-soft);
  border: 1px solid rgba(251, 113, 133, 0.28);
  border-radius: var(--r-md);
}

/* ---------- App shell ---------- */
.app {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 224px;
  flex-shrink: 0;
  background: var(--surface-1);
  border-right: 1px solid var(--border);
  padding: var(--s-6) var(--s-4);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  position: sticky;
  top: 0;
  height: 100vh;
  transition: width var(--dur) var(--ease);
}

.sidebar-top {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-6);
  padding: 0 var(--s-2);
}
.sidebar-top .brand { margin-bottom: 0; }

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--s-2);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.icon-btn:hover { background: var(--accent-soft); color: var(--text); }
.icon-btn svg { width: 18px; height: 18px; }

.nav { display: flex; flex-direction: column; gap: var(--s-1); flex: 1; }

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  text-align: left;
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  color: var(--text-muted);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-item:hover { background: var(--surface-3); color: var(--text); }
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 600;
  border-left-color: var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.nav-item.active .nav-icon { color: var(--accent); }

.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: inherit;
}
.nav-icon svg { width: 100%; height: 100%; }

#logout-btn {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  justify-content: flex-start;
  color: var(--text-faint);
  margin-top: var(--s-2);
}
#logout-btn:hover { color: var(--danger); border-color: rgba(251, 113, 133, 0.4); }

/* ---------- Sidebar collapse ---------- */
.sidebar-collapsed { width: 62px; padding-left: var(--s-3); padding-right: var(--s-3); }
.sidebar-collapsed .nav-label,
.sidebar-collapsed .brand-name { display: none; }
.sidebar-collapsed .sidebar-top { justify-content: center; }
.sidebar-collapsed .nav-item { justify-content: center; padding: var(--s-3); gap: 0; }
.sidebar-collapsed .nav-item.active { border-radius: var(--r-md); }
.sidebar-collapsed #logout-btn { justify-content: center; gap: 0; }

.main {
  flex: 1;
  min-width: 0;
  padding: var(--s-7) var(--s-8) var(--s-9);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-7);
  position: sticky;
  top: 0;
  z-index: 5;
  padding: var(--s-4) 0;
  background: linear-gradient(var(--bg) 72%, transparent);
  backdrop-filter: blur(4px);
}
.topbar h1 {
  font-size: 19px;
  margin: 0;
  letter-spacing: -0.01em;
}

.status-pill {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: var(--s-2) var(--s-4);
  border-radius: var(--r-full);
  border: 1px solid transparent;
  white-space: nowrap;
}
.status-running {
  background: var(--success-soft);
  color: var(--success);
  border-color: rgba(52, 211, 153, 0.3);
}
.status-paused {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: rgba(251, 113, 133, 0.3);
}

.view-panel[hidden] { display: none; }
.view-panel { animation: panel-in var(--dur) var(--ease); }

/* ---------- Cards / stats ---------- */
.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--s-5);
}
.card-narrow { max-width: 540px; }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  margin-bottom: var(--s-5);
}
.card-header h2 { margin: 0; font-size: 14px; letter-spacing: 0.01em; }

.badge {
  background: var(--accent-soft);
  color: var(--accent-text);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: var(--s-1) var(--s-3);
  border-radius: var(--r-full);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--s-4);
  margin-bottom: var(--s-5);
}
.stat-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-5) var(--s-6);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--dur) var(--ease);
}
.stat-card:hover { border-color: var(--border-strong); }
.stat-value {
  font-size: 26px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text);
  letter-spacing: -0.02em;
  font-feature-settings: "tnum" 1;
}
.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: var(--s-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Lists ---------- */
.list { display: flex; flex-direction: column; gap: var(--s-2); }

.list-row {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-4);
  border-radius: var(--r-md);
  background: var(--surface-3);
  border: 1px solid var(--border);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.list-row:hover { background: var(--surface-3-hover); border-color: var(--border-strong); }
.list-row img.avatar,
.list-row .avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--r-full);
  background: var(--surface-1);
  border: 1px solid var(--border);
  flex-shrink: 0;
  object-fit: cover;
}
.list-row .row-main { flex: 1; min-width: 0; }
.list-row .row-title {
  font-size: 13px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.list-row .row-title a { color: inherit; text-decoration: none; }
.list-row .row-title a:hover { color: var(--accent-text); text-decoration: underline; }
.list-row .row-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.list-row .row-count {
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-text);
  flex-shrink: 0;
}
.rank {
  width: 22px;
  text-align: center;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-faint);
  flex-shrink: 0;
}
.list-row:nth-child(1) .rank { color: var(--warning); }
.list-row:nth-child(2) .rank { color: var(--text-muted); }
.list-row:nth-child(3) .rank { color: #c9814b; }

.empty-state {
  color: var(--text-muted);
  font-size: 13px;
  padding: var(--s-8) var(--s-4);
  text-align: center;
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.01);
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  gap: var(--s-2);
  margin-bottom: var(--s-5);
  flex-wrap: wrap;
}
.tab {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: var(--s-2) var(--s-4);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.tab:hover { color: var(--text); border-color: var(--border-strong); }
.tab.active {
  background: var(--accent-soft);
  color: var(--accent-text);
  border-color: var(--accent-line);
  font-weight: 600;
}

.muted-note { color: var(--text-faint); font-size: 12px; margin: var(--s-3) 0 0; }

/* ---------- Controls ---------- */
.control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--border);
}
.control-row:last-of-type { border-bottom: none; }
.control-title { font-weight: 600; margin: 0 0 var(--s-1); font-size: 13px; }

#send-guild, #send-channel { margin-bottom: var(--s-4); }
#send-message { margin-bottom: var(--s-5); }

/* ---------- Overview ---------- */
.overview-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--s-5);
  align-items: start;
}
#overview-send-guild, #overview-send-channel { margin-bottom: var(--s-4); }
#overview-send-message { margin-bottom: var(--s-4); }

/* ---------- Feedback ---------- */
.feedback-card { display: flex; flex-direction: column; gap: var(--s-2); }
.feedback-rating {
  color: var(--warning);
  font-size: 14px;
  letter-spacing: 2px;
}
.feedback-content {
  margin: var(--s-2) 0;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.feedback-actions {
  display: flex;
  gap: var(--s-3);
  flex-wrap: wrap;
  margin-top: var(--s-3);
}
.feedback-badge-new { background: var(--accent-soft); color: var(--accent-text); }
.feedback-badge-resolved { background: var(--success-soft); color: var(--success); }
.feedback-badge-disputed { background: var(--danger-soft); color: var(--danger); }
.feedback-badge-later { background: var(--warning-soft); color: var(--warning); }

/* ---------- Skeleton loading ---------- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--surface-3);
  border-radius: var(--r-sm);
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  animation: skeleton-sweep 1.3s ease-in-out infinite;
}
.skeleton-row {
  height: 56px;
  border-radius: var(--r-md);
  margin-bottom: var(--s-2);
}
.skeleton-stat { height: 92px; border-radius: var(--r-lg); }
.skeleton-text { height: 12px; margin: var(--s-2) 0; }
.skeleton-text.w-40 { width: 40%; }
.skeleton-text.w-60 { width: 60%; }

/* ---------- Keyframes ---------- */
@keyframes btn-spin { to { transform: rotate(360deg); } }
@keyframes skeleton-sweep { 100% { transform: translateX(100%); } }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Responsive: tablet / narrow windows ---------- */
@media (max-width: 900px) {
  .app { flex-direction: column; }

  .sidebar {
    width: 100%;
    height: auto;
    position: sticky;
    top: 0;
    z-index: 10;
    flex-direction: row;
    align-items: center;
    gap: var(--s-4);
    padding: var(--s-3) var(--s-4);
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar-top { margin-bottom: 0; flex-shrink: 0; }

  .nav { flex-direction: row; flex: none; gap: var(--s-1); }
  .nav-item {
    white-space: nowrap;
    border-left: none;
    border-bottom: 2px solid transparent;
  }
  .nav-item.active {
    border-radius: var(--r-md);
    border-left: none;
    border-bottom-color: var(--accent);
  }

  .sidebar #logout-btn { width: auto; margin-top: 0; margin-left: auto; flex-shrink: 0; }

  /* Collapsed on a horizontal bar means "full-width icon-only strip", not
     the desktop 62px column — the row layout above already handles width. */
  .sidebar-collapsed { width: 100%; }
  .sidebar-collapsed .nav-item { padding: var(--s-3); }

  .main { padding: var(--s-5) var(--s-5) var(--s-8); }
  .topbar { position: static; backdrop-filter: none; }

  .overview-grid { grid-template-columns: 1fr; }
}

/* ---------- Responsive: narrow / resized windows ---------- */
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .control-row { flex-direction: column; align-items: flex-start; gap: var(--s-4); }
  .list-row { flex-wrap: wrap; }
  .feedback-actions { flex-direction: column; }
  .feedback-actions .btn { width: 100%; }
  .card-header { flex-wrap: wrap; gap: var(--s-3); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .skeleton::after { display: none; }
  .view-panel { animation: none; }
}