:root {
  --c-primary: #003c71;
  --c-primary-700: #002a55;
  --c-primary-50: #e9eff6;
  --c-accent: #c5a572;
  --c-accent-700: #a78951;
  --c-bg: #f3f5f8;
  --c-surface: #ffffff;
  --c-surface-2: #f9fafc;
  --c-border: #e3e8ef;
  --c-text: #14213d;
  --c-text-2: #4a5468;
  --c-text-3: #8893a4;
  --c-success: #1f9d55;
  --c-danger: #c0392b;
  --c-danger-bg: #fdecea;
  --shadow-sm: 0 1px 2px rgba(20, 33, 61, .06);
  --shadow-md: 0 4px 16px rgba(20, 33, 61, .08);
  --shadow-lg: 0 12px 32px rgba(20, 33, 61, .12);
  --radius: 14px;
  --radius-lg: 22px;
  --tap: 48px;
  --ease: cubic-bezier(.4, 0, .2, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur-1: 180ms;
  --dur-2: 320ms;
  --dur-3: 520ms;
  --header-h: calc(64px + env(safe-area-inset-top));
}
[data-theme="dark"] {
  --c-primary: #3b82f6;
  --c-primary-700: #2563eb;
  --c-primary-50: #1e2a45;
  --c-accent: #d4b67f;
  --c-accent-700: #b89a64;
  --c-bg: #0b1320;
  --c-surface: #131c2c;
  --c-surface-2: #1a2436;
  --c-border: #25324a;
  --c-text: #e8eef7;
  --c-text-2: #aab6c8;
  --c-text-3: #6b7689;
  --c-success: #4ade80;
  --c-danger: #f87171;
  --c-danger-bg: #3a1d1d;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow-md: 0 4px 16px rgba(0,0,0,.45);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.55);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  min-height: 100vh;
  min-height: 100dvh;
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  transition: background var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
  padding-top: var(--header-h);
  padding-bottom: env(safe-area-inset-bottom);
  overflow-x: hidden;
}
body.quest-mode { overflow: hidden; padding-bottom: 0; }

/* ===== Header ===== */
.top {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h);
  padding: env(safe-area-inset-top) 16px 0;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  z-index: 50;
  backdrop-filter: blur(12px);
  transition: background var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}
.brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center; flex: none; overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; display: block; }
.brand-text {
  display: flex; flex-direction: column; min-width: 0;
  justify-content: center;
  transition: transform var(--dur-3) var(--ease-out);
}
.brand-name {
  font-size: 16px; font-weight: 700; color: var(--c-text);
  line-height: 1.15; letter-spacing: .2px;
  transform-origin: left center;
  transition: font-size var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out);
}
.brand-sub {
  font-size: 11.5px; color: var(--c-text-3); line-height: 1.15;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  max-width: 62vw;
  opacity: 0; transform: translateY(-4px);
  height: 0; margin-top: 0;
  transition: opacity var(--dur-3) var(--ease-out),
              transform var(--dur-3) var(--ease-out),
              height var(--dur-3) var(--ease-out),
              margin-top var(--dur-3) var(--ease-out);
}
.brand[data-sub="on"] .brand-name { font-size: 13.5px; }
.brand[data-sub="on"] .brand-sub {
  opacity: 1; transform: translateY(0); height: 15px; margin-top: 2px;
}

.top-controls { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 11px;
  border: 1px solid var(--c-border); background: var(--c-surface-2);
  color: var(--c-text-2); display: grid; place-items: center;
  cursor: pointer; position: relative;
  transition: background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease),
              transform var(--dur-1) var(--ease);
}
.icon-btn:active { transform: scale(.94); }
.icon-btn svg {
  width: 19px; height: 19px; position: absolute;
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}
[data-theme="light"] .ico-moon { opacity: 0; transform: rotate(-45deg) scale(.6); }
[data-theme="light"] .ico-sun  { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="dark"]  .ico-sun  { opacity: 0; transform: rotate(45deg) scale(.6); }
[data-theme="dark"]  .ico-moon { opacity: 1; transform: rotate(0) scale(1); }

/* ===== Layout ===== */
.root { max-width: 640px; margin: 0 auto; padding: 18px 16px 28px; }
body.quest-mode .root { padding: 0; height: calc(100vh - var(--header-h)); height: calc(100dvh - var(--header-h)); }

.loader { display: grid; place-items: center; min-height: 40vh; }
.spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--c-border); border-top-color: var(--c-primary);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.stage { animation: stage-in var(--dur-3) var(--ease-out) both; }
@keyframes stage-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.card, .hero-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 22px 18px;
  transition: background var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

/* ===== Welcome ===== */
.hero-card { text-align: center; }
.hero-logo { display: grid; place-items: center; margin-bottom: 14px; }
.hero-logo img { width: 76px; height: 76px; object-fit: contain; }
.welcome-title { font-size: 21px; font-weight: 700; margin: 0 0 8px; letter-spacing: -.2px; }
.welcome-sub { font-size: 14.5px; color: var(--c-text-2); margin: 0; }

.pick-label {
  margin: 22px 0 10px; font-size: 12px; font-weight: 600;
  letter-spacing: .6px; text-transform: uppercase; color: var(--c-text-3);
  text-align: center;
}
.pick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pick-card {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 16px 12px 18px;
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  cursor: pointer; font-family: inherit; color: var(--c-text);
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease),
              transform var(--dur-1) var(--ease), background var(--dur-2) var(--ease);
}
.pick-card:active { transform: scale(.97); }
.pick-card:hover { border-color: var(--c-primary); box-shadow: var(--shadow-md); }
.pick-art {
  width: 100%; aspect-ratio: 4 / 3; border-radius: var(--radius);
  background: linear-gradient(140deg, var(--c-primary-50), var(--c-surface-2));
  display: grid; place-items: center; overflow: hidden; color: var(--c-primary);
}
.pick-art img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pick-art svg { width: 46%; height: 46%; }
.pick-name { font-size: 15px; font-weight: 700; line-height: 1.2; }
.pick-desc { font-size: 11.5px; color: var(--c-text-3); line-height: 1.3; }

/* ===== Question shell ===== */
.quest-shell { display: flex; flex-direction: column; height: 100%; }
.quest-toolbar {
  padding: 14px 16px 12px; background: var(--c-surface);
  border-bottom: 1px solid var(--c-border); flex: none;
  transition: background var(--dur-2) var(--ease);
}
.progress-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.progress-bar { flex: 1; height: 5px; border-radius: 99px; background: var(--c-border); overflow: hidden; }
.progress-fill {
  height: 100%; width: 0; border-radius: 99px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  transition: width var(--dur-3) var(--ease-out);
}
.progress-text { font-size: 11.5px; font-weight: 600; color: var(--c-text-3); flex: none; }
.q-title { font-size: 17px; font-weight: 700; margin: 0; line-height: 1.32; letter-spacing: -.1px; }
.q-hint { margin: 6px 0 0; font-size: 12.5px; color: var(--c-text-3); }

.quest-scroll { flex: 1; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.quest-inner { max-width: 640px; margin: 0 auto; padding: 18px 16px 24px; }

.quest-foot {
  flex: none; display: flex; gap: 10px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--c-surface); border-top: 1px solid var(--c-border);
  transition: background var(--dur-2) var(--ease);
}

/* ===== Controls ===== */
.btn {
  min-height: var(--tap); padding: 0 20px; border-radius: var(--radius);
  font-family: inherit; font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1.5px solid transparent; display: inline-flex; align-items: center;
  justify-content: center; gap: 8px;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease),
              border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease),
              opacity var(--dur-1) var(--ease);
}
.btn:active:not(:disabled) { transform: scale(.97); }
.btn.primary { background: var(--c-primary); color: #fff; box-shadow: var(--shadow-sm); flex: 1.4; }
.btn.primary:disabled { opacity: .45; cursor: not-allowed; }
.btn.ghost { background: var(--c-surface-2); color: var(--c-text-2); border-color: var(--c-border); flex: 1; }
.btn.big { width: 100%; }

.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field-label { display: block; font-size: 13.5px; font-weight: 600; color: var(--c-text-2); margin-bottom: 8px; }
.field-label .req { color: var(--c-danger); margin-left: 3px; }

.input, textarea.input {
  width: 100%; min-height: var(--tap); padding: 12px 14px;
  border-radius: var(--radius); border: 1.5px solid var(--c-border);
  background: var(--c-surface); color: var(--c-text);
  font-family: inherit; font-size: 16px; line-height: 1.4;
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease),
              background var(--dur-2) var(--ease);
}
.input:focus, textarea.input:focus {
  outline: none; border-color: var(--c-primary);
  box-shadow: 0 0 0 3.5px color-mix(in srgb, var(--c-primary) 16%, transparent);
}
textarea.input { min-height: 108px; resize: vertical; }
.input.invalid { border-color: var(--c-danger); }

.input-unit { position: relative; display: flex; align-items: center; }
.input-unit .input { padding-right: 84px; }
.unit-tag {
  position: absolute; right: 12px; font-size: 13px; font-weight: 600;
  color: var(--c-text-3); pointer-events: none; max-width: 74px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: right;
}

.err { margin: 7px 2px 0; font-size: 12.5px; color: var(--c-danger); font-weight: 500; }
.err[hidden] { display: none; }

/* ===== Options ===== */
.opt-list { display: flex; flex-direction: column; gap: 10px; }
.opt {
  display: flex; align-items: center; gap: 12px;
  min-height: var(--tap); padding: 13px 15px;
  border: 1.5px solid var(--c-border); border-radius: var(--radius);
  background: var(--c-surface); color: var(--c-text);
  font-family: inherit; font-size: 15px; font-weight: 500; text-align: left;
  cursor: pointer; width: 100%;
  transition: border-color var(--dur-1) var(--ease), background var(--dur-1) var(--ease),
              transform var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
}
.opt:active { transform: scale(.985); }
.opt .tick {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid var(--c-border); display: grid; place-items: center;
  transition: border-color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.opt.multi .tick { border-radius: 7px; }
.opt .tick svg { width: 13px; height: 13px; color: #fff; opacity: 0; transform: scale(.5); transition: all var(--dur-1) var(--ease); }
.opt[aria-checked="true"] { border-color: var(--c-primary); background: var(--c-primary-50); box-shadow: var(--shadow-sm); }
.opt[aria-checked="true"] .tick { border-color: var(--c-primary); background: var(--c-primary); }
.opt[aria-checked="true"] .tick svg { opacity: 1; transform: scale(1); }
.opt-text { flex: 1; }

/* ===== Group of number inputs ===== */
.grp { display: flex; flex-direction: column; gap: 10px; }
.grp-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border: 1.5px solid var(--c-border);
  border-radius: var(--radius); background: var(--c-surface-2);
  transition: border-color var(--dur-1) var(--ease), background var(--dur-2) var(--ease);
}
.grp-row.filled { border-color: var(--c-primary); background: var(--c-primary-50); }
.grp-name { flex: 1; font-size: 14.5px; font-weight: 600; color: var(--c-text); }
.grp-input { display: flex; align-items: center; gap: 7px; flex: none; }
.grp-input .input { width: 104px; min-height: 42px; text-align: right; padding: 8px 10px; font-size: 15px; }
.grp-unit { font-size: 13px; font-weight: 600; color: var(--c-text-3); min-width: 34px; }

/* ===== Select (hudud / tuman) ===== */
.select-trigger {
  width: 100%; min-height: var(--tap); padding: 12px 44px 12px 14px;
  border-radius: var(--radius); border: 1.5px solid var(--c-border);
  background: var(--c-surface); color: var(--c-text);
  font-family: inherit; font-size: 15.5px; text-align: left; cursor: pointer;
  position: relative; display: flex; align-items: center;
  transition: border-color var(--dur-1) var(--ease), background var(--dur-2) var(--ease);
}
.select-trigger[data-empty="true"] { color: var(--c-text-3); }
.select-trigger:disabled { opacity: .55; cursor: not-allowed; }
.select-trigger .chev {
  position: absolute; right: 14px; width: 16px; height: 16px; color: var(--c-text-3);
  transition: transform var(--dur-2) var(--ease);
}
.select-trigger[aria-expanded="true"] { border-color: var(--c-primary); }
.select-trigger[aria-expanded="true"] .chev { transform: rotate(180deg); }

/* ===== Reveal animation for conditional blocks ===== */
.reveal {
  display: grid; grid-template-rows: 0fr;
  opacity: 0; transform: translateY(-6px);
  transition: grid-template-rows var(--dur-3) var(--ease-out),
              opacity var(--dur-2) var(--ease),
              transform var(--dur-3) var(--ease-out),
              margin-top var(--dur-3) var(--ease-out);
  margin-top: 0;
}
.reveal > .reveal-inner { overflow: hidden; min-height: 0; }
.reveal.open { grid-template-rows: 1fr; opacity: 1; transform: none; margin-top: 18px; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .brand-name, .brand-sub, .progress-fill { transition-duration: 1ms !important; }
  .stage { animation-duration: 1ms; }
}

/* ===== Sheet (select list + date picker) ===== */
.sheet-backdrop {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(8, 14, 26, .48);
  opacity: 0; transition: opacity var(--dur-2) var(--ease);
  display: flex; align-items: flex-end; justify-content: center;
}
.sheet-backdrop.open { opacity: 1; }
.sheet {
  width: 100%; max-width: 640px;
  background: var(--c-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
  max-height: 88vh; max-height: 88dvh;
  padding-bottom: env(safe-area-inset-bottom);
  transform: translateY(100%);
  transition: transform var(--dur-3) var(--ease-out);
}
.sheet-backdrop.open .sheet { transform: none; }
.sheet-grip { width: 42px; height: 4px; border-radius: 99px; background: var(--c-border); margin: 10px auto 4px; flex: none; }
.sheet-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 16px 10px; border-bottom: 1px solid var(--c-border); flex: none;
}
.sheet-title { font-size: 16px; font-weight: 700; margin: 0; }
.sheet-search { padding: 12px 16px 8px; flex: none; }
.sheet-list { overflow-y: auto; padding: 6px 12px 16px; -webkit-overflow-scrolling: touch; }
.sheet-item {
  width: 100%; min-height: 46px; padding: 11px 14px; border: 0; border-radius: 12px;
  background: transparent; color: var(--c-text); font-family: inherit;
  font-size: 15px; text-align: left; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  transition: background var(--dur-1) var(--ease);
}
.sheet-item:hover { background: var(--c-surface-2); }
.sheet-item[aria-selected="true"] { background: var(--c-primary-50); color: var(--c-primary); font-weight: 600; }
.sheet-item .mark { width: 16px; height: 16px; flex: none; opacity: 0; }
.sheet-item[aria-selected="true"] .mark { opacity: 1; }
.sheet-empty { padding: 26px 16px; text-align: center; color: var(--c-text-3); font-size: 14px; }

/* ===== Date picker ===== */
.dp { padding: 6px 16px 18px; }
.dp-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.dp-nav {
  width: 38px; height: 38px; border-radius: 11px; border: 1.5px solid var(--c-border);
  background: var(--c-surface-2); color: var(--c-text-2); display: grid; place-items: center;
  cursor: pointer; transition: transform var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.dp-nav:active { transform: scale(.92); }
.dp-nav svg { width: 16px; height: 16px; }
.dp-caption {
  flex: 1; display: flex; justify-content: center; gap: 6px;
}
.dp-caption button {
  border: 1.5px solid var(--c-border); background: var(--c-surface-2); color: var(--c-text);
  font-family: inherit; font-size: 14.5px; font-weight: 700; padding: 8px 12px;
  border-radius: 11px; cursor: pointer; transition: background var(--dur-1) var(--ease);
}
.dp-caption button:hover { background: var(--c-primary-50); }
.dp-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.dp-dow { font-size: 11px; font-weight: 700; color: var(--c-text-3); text-align: center; padding: 6px 0; text-transform: uppercase; }
.dp-day {
  aspect-ratio: 1; border: 0; background: transparent; color: var(--c-text);
  font-family: inherit; font-size: 14.5px; font-weight: 500; border-radius: 11px;
  cursor: pointer; display: grid; place-items: center;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.dp-day:active { transform: scale(.9); }
.dp-day.mute { color: var(--c-text-3); opacity: .45; }
.dp-day.today { box-shadow: inset 0 0 0 1.5px var(--c-accent); }
.dp-day.sel { background: var(--c-primary); color: #fff; font-weight: 700; }
.dp-day:disabled { opacity: .25; cursor: not-allowed; }
.dp-months { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.dp-years { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; max-height: 260px; overflow-y: auto; }
.dp-chip {
  min-height: 44px; border: 1.5px solid var(--c-border); background: var(--c-surface-2);
  color: var(--c-text); font-family: inherit; font-size: 14px; font-weight: 600;
  border-radius: 12px; cursor: pointer; transition: all var(--dur-1) var(--ease);
}
.dp-chip.sel { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.dp-foot { display: flex; gap: 10px; margin-top: 14px; }

/* ===== Final ===== */
.hero-icon { display: grid; place-items: center; margin-bottom: 14px; color: var(--c-success); }
.hero-icon svg { width: 74px; height: 74px; }
.hero-icon.success svg { animation: pop var(--dur-3) var(--ease-out) both; }
@keyframes pop { from { transform: scale(.6); opacity: 0; } to { transform: none; opacity: 1; } }

.id-chip {
  margin: 18px auto 0; display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: var(--radius);
  border: 1.5px dashed var(--c-primary); background: var(--c-primary-50);
  width: fit-content; max-width: 100%;
}
.id-chip .id-label { font-size: 11.5px; font-weight: 600; color: var(--c-text-3); text-transform: uppercase; letter-spacing: .5px; }
.id-chip .id-value { font-size: 19px; font-weight: 800; letter-spacing: 1px; color: var(--c-primary); font-variant-numeric: tabular-nums; }
.copy-btn {
  width: 40px; height: 40px; border-radius: 11px; flex: none;
  border: 1.5px solid var(--c-border); background: var(--c-surface);
  color: var(--c-text-2); display: grid; place-items: center; cursor: pointer;
  position: relative; transition: all var(--dur-1) var(--ease);
}
.copy-btn:active { transform: scale(.92); }
.copy-btn svg { width: 17px; height: 17px; position: absolute; transition: opacity var(--dur-1) var(--ease), transform var(--dur-1) var(--ease); }
.copy-btn .ico-done { opacity: 0; transform: scale(.5); color: var(--c-success); }
.copy-btn.done { border-color: var(--c-success); }
.copy-btn.done .ico-copy { opacity: 0; transform: scale(.5); }
.copy-btn.done .ico-done { opacity: 1; transform: scale(1); }

.toast {
  position: fixed; left: 50%; bottom: calc(22px + env(safe-area-inset-bottom));
  transform: translate(-50%, 20px); z-index: 200;
  background: var(--c-text); color: var(--c-bg);
  padding: 11px 18px; border-radius: 99px; font-size: 13.5px; font-weight: 600;
  box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none;
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease-out);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.fatal { text-align: center; padding: 40px 20px; color: var(--c-text-2); }
.fatal h2 { font-size: 18px; margin: 0 0 8px; color: var(--c-text); }

.hero-icon.gate { color: var(--c-accent); }
a.btn { text-decoration: none; }