/* ============================================================
   ShopDesk — Design System
   Style: Data-Dense Dashboard (ui-ux-pro-max) · slate + emerald
   Charts follow the dataviz reference palette (validated).
   ============================================================ */

/* ---------- fonts (local, offline) ---------- */
@font-face { font-family: 'Fira Sans'; src: url('../fonts/firasans-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Fira Sans'; src: url('../fonts/firasans-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Fira Sans'; src: url('../fonts/firasans-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Fira Sans'; src: url('../fonts/firasans-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Fira Code'; src: url('../fonts/firacode-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Fira Code'; src: url('../fonts/firacode-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }

/* ---------- tokens ---------- */
:root {
  --font-sans: 'Fira Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', ui-monospace, 'Cascadia Code', monospace;

  /* light */
  --bg: #f6f8fa;
  --bg-plane: #eef1f5;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --surface-3: #e8edf3;
  --fg: #0f172a;
  --fg-2: #475569;
  --fg-3: #8a94a6;
  --border: #e4e8ee;
  --border-strong: #cbd5e1;
  --primary: #334155;
  --on-primary: #ffffff;
  --accent: #059669;
  --accent-hover: #047857;
  --accent-soft: #ecfdf5;
  --accent-soft-fg: #047857;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --danger-soft-fg: #b91c1c;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --warn-soft-fg: #92400e;
  --info-soft: #eff6ff;
  --info-soft-fg: #1d4ed8;
  --ring: #05966955;
  --shadow-1: 0 1px 2px rgb(15 23 42 / .05);
  --shadow-2: 0 2px 8px -1px rgb(15 23 42 / .08), 0 1px 2px rgb(15 23 42 / .04);
  --shadow-3: 0 10px 28px -6px rgb(15 23 42 / .16), 0 4px 10px -4px rgb(15 23 42 / .08);
  --shadow-glow: 0 0 0 1px var(--border);

  /* charts — dataviz reference palette (light) */
  --s1: #2a78d6; --s2: #1baf7a; --s3: #eda100; --s6: #e34948; --s5: #4a3aa7; --s8: #eb6834;
  --chart-grid: #e1e0d9;
  --chart-muted: #898781;
  --chart-baseline: #c3c2b7;
  --delta-good: #006300;
  --delta-bad: #b91c1c;

  --r-sm: 8px; --r-md: 12px; --r-lg: 16px;
  --sidebar-w: 232px;
  --dur-1: 150ms; --dur-2: 220ms; --dur-3: 320ms;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-spring: cubic-bezier(.34, 1.4, .64, 1);
}

html[data-theme='dark'] {
  --bg: #0b1220;
  --bg-plane: #070d18;
  --surface: #111a2c;
  --surface-2: #18233a;
  --surface-3: #1f2c46;
  --fg: #eef2f8;
  --fg-2: #a9b4c6;
  --fg-3: #6d7a90;
  --border: #223049;
  --border-strong: #33436184;
  --primary: #cbd5e1;
  --on-primary: #0f172a;
  --accent: #10b981;
  --accent-hover: #34d399;
  --accent-soft: #06281e;
  --accent-soft-fg: #6ee7b7;
  --danger: #f87171;
  --danger-soft: #2d1414;
  --danger-soft-fg: #fca5a5;
  --warn: #fbbf24;
  --warn-soft: #291d05;
  --warn-soft-fg: #fcd34d;
  --info-soft: #0e2246;
  --info-soft-fg: #93c5fd;
  --ring: #10b98166;
  --shadow-1: 0 1px 2px rgb(0 0 0 / .4);
  --shadow-2: 0 2px 8px -1px rgb(0 0 0 / .5);
  --shadow-3: 0 12px 32px -8px rgb(0 0 0 / .65);
  --shadow-glow: 0 0 0 1px var(--border);

  /* charts — dark steps of the same hues */
  --s1: #3987e5; --s2: #199e70; --s3: #c98500; --s6: #e66767; --s5: #9085e9; --s8: #d95926;
  --chart-grid: #263349;
  --chart-muted: #8a94a6;
  --chart-baseline: #33445f;
  --delta-good: #34d399;
  --delta-bad: #f87171;
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
html { background: var(--bg); }
body {
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--dur-2), color var(--dur-2);
}
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; }
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: 14px; }
::placeholder { color: var(--fg-3); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.mono, .num { font-family: var(--font-mono); }
.tabular { font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- app shell ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; top: 0; bottom: 0; left: 0; z-index: 40;
  transition: transform var(--dur-3) var(--ease-out);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px 14px;
}
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), #0ea5e9);
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 4px 12px -2px rgb(5 150 105 / .5);
}
.brand-name { font-weight: 700; font-size: 16px; letter-spacing: -.02em; }
.brand-sub { font-size: 10.5px; color: var(--fg-3); margin-top: -2px; letter-spacing: .06em; text-transform: uppercase; }

.nav { padding: 6px 10px; overflow-y: auto; flex: 1; }
.nav-section { font-size: 10px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--fg-3); padding: 14px 10px 6px; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 8.5px 10px; margin: 1px 0;
  border-radius: var(--r-sm);
  color: var(--fg-2); font-size: 13.5px; font-weight: 500;
  cursor: pointer; position: relative;
  transition: background var(--dur-1), color var(--dur-1), transform var(--dur-1);
  border: none; background: none; width: 100%; text-align: left;
}
.nav-ic {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  display: grid; place-items: center;
  color: var(--nc, var(--accent));
  background: color-mix(in srgb, var(--nc, var(--accent)) 13%, transparent);
  transition: transform var(--dur-2) var(--ease-spring), background var(--dur-2), box-shadow var(--dur-2), color var(--dur-2);
}
.nav-ic svg { width: 16px; height: 16px; }
.nav-item:hover { background: var(--surface-2); color: var(--fg); }
.nav-item:hover .nav-ic { transform: scale(1.1); background: color-mix(in srgb, var(--nc, var(--accent)) 20%, transparent); }
.nav-item:active { transform: scale(.98); }
.nav-item.active {
  background: color-mix(in srgb, var(--nc, var(--accent)) 12%, transparent);
  color: color-mix(in srgb, var(--nc, var(--accent)) 65%, var(--fg)); font-weight: 600;
}
.nav-item.active .nav-ic {
  color: #fff;
  background: linear-gradient(145deg,
    color-mix(in srgb, var(--nc, var(--accent)) 92%, #fff),
    color-mix(in srgb, var(--nc, var(--accent)) 78%, #000));
  box-shadow: 0 5px 13px -4px color-mix(in srgb, var(--nc, var(--accent)) 65%, transparent),
              inset 0 1px 0 rgb(255 255 255 / .28);
}
.nav-item.active::before {
  content: ''; position: absolute; left: -10px; top: 18%; bottom: 18%; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--nc, var(--accent));
  animation: navPill var(--dur-3) var(--ease-spring);
}
@keyframes navPill { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.nav-badge { margin-left: auto; font-size: 10.5px; font-weight: 600; background: var(--danger); color: #fff; border-radius: 99px; padding: 1px 7px; }

.sidebar-foot { padding: 12px; border-top: 1px solid var(--border); }
.user-chip { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--r-sm); }
.user-chip:hover { background: var(--surface-2); }
.avatar {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  background: var(--surface-3); color: var(--fg-2);
  display: grid; place-items: center; font-weight: 600; font-size: 12.5px;
}
.user-name { font-size: 13px; font-weight: 600; line-height: 1.2; }
.user-role { font-size: 11px; color: var(--fg-3); text-transform: capitalize; }

.main { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.page-title { font-size: 17px; font-weight: 700; letter-spacing: -.02em; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.content { padding: 22px 24px 60px; max-width: 1440px; width: 100%; margin: 0 auto; }
.main { position: relative; }
.main::before { /* ambient gradient glow (SaaS-analytics style, very subtle) */
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(700px 380px at 88% -8%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 65%),
    radial-gradient(600px 340px at -6% 30%, color-mix(in srgb, #0ea5e9 5%, transparent), transparent 60%);
}
.main > * { position: relative; z-index: 1; }

/* dashboard hero */
.hero { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.hero-title { font-size: 21px; font-weight: 750; letter-spacing: -.02em; }
.hero-title .grad {
  background: linear-gradient(90deg, var(--fg), color-mix(in srgb, var(--accent) 75%, var(--fg)));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: 12.5px; color: var(--fg-3); margin-top: 2px; }
.insight-strip {
  display: flex; align-items: center; gap: 9px; flex-wrap: wrap;
  border: 1px solid var(--border); border-radius: 13px;
  background: linear-gradient(90deg, var(--accent-soft), transparent 70%);
  padding: 9px 14px; margin-bottom: 16px; font-size: 13px; color: var(--fg-2);
  animation: pageIn var(--dur-3) var(--ease-out) both;
}
.insight-strip b { color: var(--fg); }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); position: relative; flex-shrink: 0; }
.pulse-dot::after {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  border: 2px solid var(--accent); animation: pulse 1.8s infinite;
}

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s var(--ease-out), transform .55s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }

.hamburger { display: none; }
.scrim {
  position: fixed; inset: 0; background: rgb(2 6 23 / .55); z-index: 39;
  opacity: 0; pointer-events: none; transition: opacity var(--dur-2);
}
@media (max-width: 1023px) {
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-3); }
  .sidebar.open { transform: translateX(0); }
  .scrim.show { opacity: 1; pointer-events: auto; }
  .main { margin-left: 0; }
  .hamburger { display: inline-flex; }
  .content { padding: 14px 13px 92px; }  /* bottom pad for tab bar */
  .topbar { padding: 10px 14px; }
}

/* ---------- bottom tab bar (mobile app feel) ---------- */
.bottom-nav { display: none; }
@media (max-width: 1023px) {
  .bottom-nav {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 45;
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom, 0px));
    justify-content: space-around; align-items: flex-end;
  }
  .bn-item {
    flex: 1; border: none; background: none; cursor: pointer;
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    color: var(--fg-3); padding: 5px 2px; border-radius: 12px;
    transition: color var(--dur-1), transform var(--dur-1);
    -webkit-tap-highlight-color: transparent;
  }
  .bn-item .bn-ic { display: grid; place-items: center; height: 22px; transition: transform var(--dur-2) var(--ease-spring); }
  .bn-lbl { font-size: 10.5px; font-weight: 600; letter-spacing: -.01em; }
  .bn-item:active { transform: scale(.9); }
  .bn-item.active { color: var(--accent); }
  .bn-item.active .bn-ic { transform: translateY(-2px); }
  /* prominent center Sale button */
  .bn-center {
    flex: 0 0 auto; margin-top: -22px;
  }
  .bn-center .bn-ic {
    width: 54px; height: 54px; border-radius: 18px;
    background: linear-gradient(135deg, var(--accent), #0ea5e9); color: #fff;
    box-shadow: 0 6px 16px -3px rgb(5 150 105 / .55); margin-bottom: 2px;
  }
  .bn-center.active { color: var(--accent); }
  .bn-center.active .bn-ic { transform: none; }
}

/* ---------- page transitions ---------- */
/* backwards (not both): animation ke baad transform retain nahi hota, warna ye
   position:fixed overlays (POS cart sheet/bar) ke liye containing-block ban jata hai */
.page-enter { animation: pageIn var(--dur-3) var(--ease-out) backwards; }
@keyframes pageIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.stagger > * { animation: pageIn var(--dur-3) var(--ease-out) backwards; }
.stagger > *:nth-child(1) { animation-delay: 0ms; }
.stagger > *:nth-child(2) { animation-delay: 40ms; }
.stagger > *:nth-child(3) { animation-delay: 80ms; }
.stagger > *:nth-child(4) { animation-delay: 120ms; }
.stagger > *:nth-child(5) { animation-delay: 160ms; }
.stagger > *:nth-child(6) { animation-delay: 200ms; }
.stagger > *:nth-child(7) { animation-delay: 240ms; }
.stagger > *:nth-child(8) { animation-delay: 280ms; }

/* ---------- cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
  transition: box-shadow var(--dur-2), transform var(--dur-2), border-color var(--dur-2);
}
.card.hoverable:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); border-color: var(--border-strong); }
.card-pad { padding: 18px; }
.card-head { display: flex; align-items: center; gap: 10px; padding: 16px 18px 0; }
.card-head h3 { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
/* colored header icon chip (DataPulse style) */
.head-ic {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(145deg,
    color-mix(in srgb, var(--tile, var(--accent)) 92%, #fff),
    color-mix(in srgb, var(--tile, var(--accent)) 78%, #000));
  box-shadow: 0 5px 13px -4px color-mix(in srgb, var(--tile, var(--accent)) 60%, transparent),
              inset 0 1px 0 rgb(255 255 255 / .28);
  transition: transform var(--dur-2) var(--ease-spring);
}
.head-ic svg { width: 16px; height: 16px; filter: drop-shadow(0 1px 1px rgb(0 0 0 / .18)); }
.card:hover .head-ic, .card-head:hover .head-ic { transform: scale(1.08) rotate(-4deg); }
.card-head .sub { font-size: 12px; color: var(--fg-3); }
.card-head .spacer { margin-left: auto; }

/* stat tile (dataviz contract: label · value · delta · trend) */
.stat {
  background:
    radial-gradient(120px 90px at 100% 0%, color-mix(in srgb, var(--tile, var(--accent)) 9%, transparent), transparent 70%),
    var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 16px 18px 14px; position: relative; overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: box-shadow var(--dur-2), transform var(--dur-2), border-color var(--dur-2);
}
.stat:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--tile, var(--accent)) 45%, var(--border));
  box-shadow: 0 10px 28px -10px color-mix(in srgb, var(--tile, var(--accent)) 50%, transparent), var(--shadow-2);
}
.stat::after { /* one-time shine sweep on load */
  content: ''; position: absolute; top: -20%; bottom: -20%; width: 45%; left: -70%;
  background: linear-gradient(100deg, transparent, rgb(255 255 255 / .13), transparent);
  transform: skewX(-14deg);
  animation: shine 1s .35s var(--ease-out) 1 both; pointer-events: none;
}
@keyframes shine { to { left: 130%; } }
.stat-ic {
  position: absolute; top: 13px; right: 13px; width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(145deg,
    color-mix(in srgb, var(--tile, var(--accent)) 92%, #fff),
    color-mix(in srgb, var(--tile, var(--accent)) 78%, #000));
  color: #fff;
  box-shadow: 0 6px 16px -5px color-mix(in srgb, var(--tile, var(--accent)) 65%, transparent),
              inset 0 1px 0 rgb(255 255 255 / .28);
  transition: transform var(--dur-2) var(--ease-spring), box-shadow var(--dur-2);
}
.stat-ic svg { filter: drop-shadow(0 1px 1px rgb(0 0 0 / .18)); }
.stat:hover .stat-ic {
  transform: scale(1.14) rotate(-5deg);
  box-shadow: 0 10px 22px -6px color-mix(in srgb, var(--tile, var(--accent)) 75%, transparent),
              inset 0 1px 0 rgb(255 255 255 / .3);
}
.stat-label { font-size: 12px; font-weight: 500; color: var(--fg-2); display: flex; align-items: center; gap: 7px; }
.stat-label svg { width: 15px; height: 15px; color: var(--fg-3); }
.stat-value { font-size: 26px; font-weight: 650; letter-spacing: -.02em; margin-top: 6px; line-height: 1.1; }
.stat-value .cur { font-size: 14px; font-weight: 600; color: var(--fg-3); margin-right: 3px; }
.stat-delta { font-size: 12px; font-weight: 600; margin-top: 7px; display: inline-flex; align-items: center; gap: 4px; }
.stat-delta.up { color: var(--delta-good); }
.stat-delta.down { color: var(--delta-bad); }
.stat-delta .vs { color: var(--fg-3); font-weight: 400; }
.stat-spark { position: absolute; right: 10px; bottom: 8px; opacity: .9; }
.stat-accent { position: absolute; left: 0; top: 14px; bottom: 14px; width: 3px; border-radius: 0 3px 3px 0; }

/* internet image picker (3 options) */
.ip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ip-opt {
  padding: 0; border: 2px solid var(--border); border-radius: 11px; overflow: hidden;
  background: var(--surface-2); cursor: pointer; aspect-ratio: 1; height: auto;
  transition: border-color var(--dur-1), transform var(--dur-1), box-shadow var(--dur-1);
}
.ip-opt img { width: 100%; height: 100%; object-fit: contain; display: block; }
.ip-opt:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-2); }
.ip-opt.bad { display: none; }

/* internet-images progress bar */
.wi-bar { height: 10px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.wi-fill { height: 100%; width: 0; border-radius: 99px; background: linear-gradient(90deg, var(--s1), var(--accent)); transition: width var(--dur-2) var(--ease-out); }

/* item photo preview in the add/edit form */
.item-thumb-lg {
  width: 64px; height: 64px; border-radius: 12px; overflow: hidden; flex-shrink: 0;
  background: var(--surface-2); border: 1px solid var(--border);
  display: grid; place-items: center;
}
.item-thumb-lg img { width: 100%; height: 100%; object-fit: cover; }
.item-thumb-lg .ph-lbl { font-weight: 800; font-size: 26px; color: var(--fg-3); }

/* item thumbnail (photo) + colored-letter placeholder */
.item-thumb { display: block; object-fit: cover; }
.item-thumb.ph {
  color: var(--tc, var(--accent));
  background: color-mix(in srgb, var(--tc, var(--accent)) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--tc, var(--accent)) 22%, transparent);
  line-height: 1;
}

/* business growth card (MoM / YoY) */
.grow-grid { gap: 12px; }
.grow-card {
  position: relative; overflow: hidden;
  background: radial-gradient(120px 90px at 100% 0%, color-mix(in srgb, var(--tile, var(--accent)) 10%, transparent), transparent 70%), var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-lg); padding: 15px 16px 14px;
}
.grow-card .stat-ic { position: absolute; top: 13px; right: 13px; }
.grow-card .stat-label { min-height: 32px; padding-right: 44px; }
.grow-pct-row { margin-top: 8px; }
.grow-pct { display: inline-flex; align-items: center; gap: 5px; font-size: 24px; font-weight: 750; letter-spacing: -.02em; }
.grow-pct.up { color: var(--delta-good); }
.grow-pct.down { color: var(--delta-bad); }
.grow-pct.flat { color: var(--fg-3); }
.grow-pct svg { width: 18px; height: 18px; }
@media (max-width: 900px) { .grow-grid { grid-template-columns: 1fr !important; } }

/* mini-tile colored icon chip (matches DataPulse chips) */
.mini-ic {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  display: grid; place-items: center; color: var(--mc, var(--accent));
  background: color-mix(in srgb, var(--mc, var(--accent)) 14%, transparent);
  transition: transform var(--dur-2) var(--ease-spring), background var(--dur-2);
}
.mini-tile:hover .mini-ic { transform: scale(1.1); background: color-mix(in srgb, var(--mc, var(--accent)) 20%, transparent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border: 1px solid transparent; border-radius: 10px;
  padding: 8px 14px; font-size: 13.5px; font-weight: 600;
  cursor: pointer; user-select: none; white-space: nowrap;
  transition: background var(--dur-1), border-color var(--dur-1), color var(--dur-1),
              transform var(--dur-1), box-shadow var(--dur-1), opacity var(--dur-1);
}
.btn svg { width: 16px; height: 16px; }
.btn:active { transform: scale(.965); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 1px 2px rgb(5 150 105 / .4); }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); box-shadow: 0 4px 12px -2px rgb(5 150 105 / .45); }
.btn-dark { background: var(--primary); color: var(--on-primary); }
.btn-dark:hover:not(:disabled) { opacity: .9; }
.btn-ghost { background: transparent; color: var(--fg-2); border-color: var(--border); }
.btn-ghost:hover:not(:disabled) { background: var(--surface-2); color: var(--fg); border-color: var(--border-strong); }
.btn-soft { background: var(--surface-2); color: var(--fg); }
.btn-soft:hover:not(:disabled) { background: var(--surface-3); }
.btn-danger { background: var(--danger-soft); color: var(--danger-soft-fg); }
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; border-radius: 8px; }
.btn-sm svg { width: 14px; height: 14px; }
.btn-lg { padding: 12px 20px; font-size: 15px; border-radius: 12px; }
.btn-icon { padding: 8px; border-radius: 10px; }
.btn-block { width: 100%; }
.btn .spinner { width: 14px; height: 14px; }

.spinner {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid color-mix(in srgb, currentColor 25%, transparent);
  border-top-color: currentColor;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--fg-2); }
.field .hint { font-size: 11.5px; color: var(--fg-3); }
.input, .select, textarea.input {
  width: 100%; padding: 9px 12px;
  background: var(--surface); color: var(--fg);
  border: 1px solid var(--border-strong); border-radius: 10px;
  transition: border-color var(--dur-1), box-shadow var(--dur-1), background var(--dur-1);
}
.input:hover, .select:hover { border-color: var(--fg-3); }
.input:focus, .select:focus, textarea.input:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--ring);
}
.input.error { border-color: var(--danger); }
.field .err { font-size: 12px; color: var(--danger); }
.input-group { display: flex; gap: 8px; }
.input-group .input { flex: 1; }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--fg-3) 50%), linear-gradient(135deg, var(--fg-3) 50%, transparent 50%); background-position: calc(100% - 16px) 55%, calc(100% - 11px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 30px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--fg-2); cursor: pointer; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 14px; }
@media (max-width: 640px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* toggle switch */
.switch { position: relative; width: 40px; height: 22px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .track {
  position: absolute; inset: 0; border-radius: 99px; cursor: pointer;
  background: var(--surface-3); border: 1px solid var(--border-strong);
  transition: background var(--dur-2), border-color var(--dur-2);
}
.switch .track::before {
  content: ''; position: absolute; width: 16px; height: 16px; border-radius: 50%;
  left: 2px; top: 2px; background: #fff; box-shadow: var(--shadow-1);
  transition: transform var(--dur-2) var(--ease-spring);
}
.switch input:checked + .track { background: var(--accent); border-color: var(--accent); }
.switch input:checked + .track::before { transform: translateX(18px); }

/* segmented control */
.seg { display: inline-flex; flex-wrap: wrap; background: var(--surface-2); border: 1px solid var(--border); border-radius: 11px; padding: 3px; gap: 2px; max-width: 100%; }
.seg button {
  border: none; background: transparent; color: var(--fg-2);
  padding: 6px 13px; font-size: 12.5px; font-weight: 600; border-radius: 8px; cursor: pointer;
  transition: background var(--dur-1), color var(--dur-1), box-shadow var(--dur-1);
}
.seg button:hover { color: var(--fg); }
.seg button.active { background: var(--surface); color: var(--fg); box-shadow: var(--shadow-1); }

/* ---------- badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 600; border-radius: 99px; padding: 2.5px 9px;
  background: var(--surface-2); color: var(--fg-2);
}
.badge svg { width: 12px; height: 12px; }
.badge.green { background: var(--accent-soft); color: var(--accent-soft-fg); }
.badge.red { background: var(--danger-soft); color: var(--danger-soft-fg); }
.badge.amber { background: var(--warn-soft); color: var(--warn-soft-fg); }
.badge.blue { background: var(--info-soft); color: var(--info-soft-fg); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--r-lg); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th {
  text-align: left; font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  color: var(--fg-3); padding: 10px 14px; border-bottom: 1px solid var(--border);
  white-space: nowrap; background: var(--surface);
  position: sticky; top: 0;
}
.tbl td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tbody tr { transition: background var(--dur-1); }
.tbl tbody tr:hover { background: var(--surface-2); }
.tbl tbody tr:last-child td { border-bottom: none; }
.tbl .r { text-align: right; }
.tbl td.num, .tbl .amount { font-variant-numeric: tabular-nums; }
.tbl .row-click { cursor: pointer; }
.tbl .cell-main { font-weight: 600; }
.tbl .cell-sub { font-size: 12px; color: var(--fg-3); margin-top: 1px; }

/* ---------- modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 90;
  background: rgb(2 6 23 / .58);
  display: grid; place-items: center; padding: 18px;
  animation: fadeIn var(--dur-2) both;
}
@keyframes fadeIn { from { opacity: 0; } }
.modal {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; box-shadow: var(--shadow-3);
  width: 100%; max-width: 520px; max-height: min(86vh, 900px);
  display: flex; flex-direction: column;
  animation: modalIn var(--dur-3) var(--ease-spring) both;
}
.modal.wide { max-width: 780px; }
.modal.xl { max-width: 1000px; }
@keyframes modalIn { from { opacity: 0; transform: scale(.94) translateY(14px); } to { opacity: 1; transform: none; } }
.modal-head { display: flex; align-items: center; gap: 10px; padding: 16px 20px 12px; border-bottom: 1px solid var(--border); }
.modal-head h3 { font-size: 15.5px; }
.modal-body { padding: 16px 20px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 9px; padding: 13px 20px; border-top: 1px solid var(--border); }
.modal-x { margin-left: auto; }

/* modals become bottom-sheets on phones (native app feel) */
@media (max-width: 640px) {
  .modal-overlay { padding: 0; place-items: end center; }
  .modal, .modal.wide, .modal.xl {
    max-width: 100%; width: 100%; max-height: 92vh;
    border-radius: 20px 20px 0 0;
    animation: sheetIn var(--dur-3) var(--ease-spring) both;
  }
  .modal-head {
    padding: 16px 18px 12px; position: relative;
  }
  .modal-head::before {   /* grab handle */
    content: ''; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
    width: 38px; height: 4px; border-radius: 3px; background: var(--border-strong);
  }
  .modal-body { padding: 14px 18px calc(16px + env(safe-area-inset-bottom, 0px)); }
  .modal-foot { padding: 12px 18px calc(12px + env(safe-area-inset-bottom, 0px)); }
  .modal-foot .btn { flex: 1 1 auto; justify-content: center; }
}
@keyframes sheetIn { from { opacity: 0; transform: translateY(100%); } to { opacity: 1; transform: none; } }

/* ---------- toast ---------- */
.toasts { position: fixed; bottom: 20px; right: 20px; z-index: 120; display: flex; flex-direction: column; gap: 9px; }
@media (max-width: 640px) {
  .toasts { bottom: calc(76px + env(safe-area-inset-bottom, 0px)); right: 12px; left: 12px; }
  .toast { min-width: 0; max-width: none; }
}
.toast {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--surface); color: var(--fg);
  border: 1px solid var(--border); border-radius: 13px;
  padding: 12px 15px; min-width: 250px; max-width: 380px;
  box-shadow: var(--shadow-3); font-size: 13.5px;
  animation: toastIn var(--dur-3) var(--ease-spring) both;
}
.toast.out { animation: toastOut var(--dur-2) var(--ease-out) both; }
@keyframes toastIn { from { opacity: 0; transform: translateX(30px) scale(.95); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to { opacity: 0; transform: translateX(30px) scale(.95); } }
.toast svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 1px; }
.toast.ok svg { color: var(--accent); }
.toast.err svg { color: var(--danger); }
.toast b { display: block; font-size: 13.5px; }
.toast .toast-sub { font-size: 12.5px; color: var(--fg-2); }

/* ---------- combobox (search dropdown) ---------- */
.combo { position: relative; }
.combo-list {
  position: absolute; z-index: 60; left: 0; right: 0; top: calc(100% + 5px);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow-3);
  max-height: 280px; overflow-y: auto; padding: 5px;
  animation: comboIn var(--dur-2) var(--ease-out) both;
}
@keyframes comboIn { from { opacity: 0; transform: translateY(-5px); } }
.combo-opt { padding: 8px 11px; border-radius: 8px; cursor: pointer; display: flex; align-items: center; gap: 9px; }
.combo-opt:hover, .combo-opt.hl { background: var(--surface-2); }
.combo-opt .co-main { font-weight: 600; font-size: 13.5px; }
.combo-opt .co-sub { font-size: 11.5px; color: var(--fg-3); }
.combo-opt .co-right { margin-left: auto; text-align: right; }
.combo-empty { padding: 14px; text-align: center; color: var(--fg-3); font-size: 13px; }

/* ---------- misc ---------- */
.row { display: flex; align-items: center; gap: 10px; }
.row.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.muted { color: var(--fg-3); }
.small { font-size: 12.5px; }
.strong { font-weight: 600; }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 14px; } .mt-4 { margin-top: 20px; }
.mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 14px; }
.grid { display: grid; gap: 14px; }
.grid > *, .pos-grid > *, .chat-layout > * { min-width: 0; } /* tables/charts must not stretch grid tracks */
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.cols-5 { grid-template-columns: repeat(5, 1fr); }
.cols-6 { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 1200px) { .cols-6 { grid-template-columns: repeat(3, 1fr); } .cols-5 { grid-template-columns: repeat(3, 1fr); } .cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px) { .cols-2, .cols-3 { grid-template-columns: 1fr; } .cols-6, .cols-5, .cols-4 { grid-template-columns: repeat(2, 1fr); } }

.empty {
  text-align: center; padding: 38px 20px; color: var(--fg-3);
}
.empty svg { width: 38px; height: 38px; opacity: .4; margin-bottom: 10px; }
.empty .e-title { font-weight: 600; color: var(--fg-2); font-size: 14px; }
.empty .e-sub { font-size: 12.5px; margin-top: 3px; }

.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size: 200% 100%; animation: shimmer 1.3s infinite; border-radius: 8px;
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

.divider { height: 1px; background: var(--border); margin: 14px 0; border: none; }

/* filter row above charts (dataviz: one row scoping everything below) */
.filter-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 16px;
}

/* ---------- mobile app-feel refinements ---------- */
@media (max-width: 720px) {
  /* dashboard hero: greeting on top, action buttons in a row below (no overlap) */
  .hero { gap: 10px; }
  .hero-title { font-size: 18px; line-height: 1.25; }
  .hero > .grow { flex: 1 1 100%; }
  .hero > .btn { flex: 1 1 0; justify-content: center; }
  /* filter rows: search takes full width, controls wrap edge-to-edge, no cutoff */
  .filter-row { gap: 8px; }
  .filter-row > .combo,
  .filter-row > .combo.grow { max-width: none !important; flex: 1 1 100%; width: 100%; }
  .filter-row > .combo .input { width: 100%; }
  .filter-row > .select { width: 100% !important; flex: 1 1 100%; }
  .filter-row > .grow:empty { display: none; }          /* kill desktop spacers so buttons pack */
  .filter-row > .checkbox-row { flex: 0 0 auto; }
  .filter-row > .btn { flex: 1 1 auto; justify-content: center; }
  /* tighter, readable tables */
  .tbl { font-size: 12.5px; }
  .tbl th { padding: 8px 10px; letter-spacing: .04em; }
  .tbl td { padding: 9px 10px; }
  .table-wrap { -webkit-overflow-scrolling: touch; }
}


/* chart card */
.chart-card .card-head { padding: 16px 18px 4px; }
.chart-box { padding: 10px 14px 14px; position: relative; }
.chart-box canvas { max-width: 100%; }
.legend-row { display: flex; gap: 14px; flex-wrap: wrap; padding: 0 18px; margin-top: 2px; }
.legend-item { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--fg-2); }
.legend-swatch { width: 10px; height: 10px; border-radius: 3px; }
.legend-line { width: 14px; height: 2.5px; border-radius: 2px; }

/* ---------- POS specifics ---------- */
.pos-grid { display: grid; grid-template-columns: 1fr 400px; gap: 16px; align-items: start; }
@media (max-width: 1100px) { .pos-grid { grid-template-columns: 1fr; } }

/* cart: desktop = inline card; mobile = floating bar + slide-up sheet */
.pos-cartbar, .pos-cart-scrim, .pos-cart-close { display: none; }
@media (max-width: 1100px) {
  /* the cart card becomes a bottom sheet */
  .pos-cart {
    position: fixed !important; left: 0; right: 0; bottom: 0; top: auto !important;
    z-index: 60; margin: 0; border-radius: 20px 20px 0 0;
    max-height: 88vh; display: flex; flex-direction: column;
    transform: translateY(106%); transition: transform var(--dur-3) var(--ease-out);
    box-shadow: 0 -12px 44px -8px rgb(15 23 42 / .34);
  }
  .pos-cart.open { transform: translateY(0); }
  .pos-cart .card-pad { overflow-y: auto; -webkit-overflow-scrolling: touch; padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
  .pos-cart #cart-lines { max-height: none !important; }
  .pos-cart-close { display: inline-flex; }

  .pos-cart-scrim {
    display: block; position: fixed; inset: 0; z-index: 55;
    background: rgb(15 23 42 / .5); opacity: 0; pointer-events: none;
    transition: opacity var(--dur-2);
  }
  .pos-cart-scrim.show { opacity: 1; pointer-events: auto; }

  /* floating cart bar (sits above the bottom nav) */
  .pos-cartbar {
    position: fixed; left: 10px; right: 10px;
    bottom: calc(76px + env(safe-area-inset-bottom, 0px)); z-index: 46;
    align-items: center; gap: 11px; padding: 12px 16px;
    border: none; border-radius: 15px; cursor: pointer; width: auto;
    background: linear-gradient(135deg, var(--accent), #0ea5e9); color: #fff;
    box-shadow: 0 10px 26px -6px rgb(5 150 105 / .6);
    font-weight: 600; font-size: 14.5px; -webkit-tap-highlight-color: transparent;
  }
  .pos-cartbar.show { display: flex; }
  .pos-cartbar:active { transform: scale(.985); }
  .pos-cartbar svg { color: #fff; }
  .pcb-ic { position: relative; display: grid; place-items: center; }
  .pcb-count { position: absolute; top: -9px; right: -11px; background: #fff; color: var(--accent);
    font-size: 10.5px; font-weight: 800; min-width: 17px; height: 17px; border-radius: 99px;
    display: grid; place-items: center; padding: 0 4px; }
  .pcb-label { flex: 1; text-align: left; }
  .pcb-total { font-weight: 800; font-size: 16px; }
  .pcb-cta { display: grid; place-items: center; opacity: .92; }

  /* sheet khula ho to bottom-nav ko neeche slide kar do (warna payment buttons ke upar aata hai) */
  body.pos-sheet-open .bottom-nav { transform: translateY(110%); }
  .bottom-nav { transition: transform var(--dur-3) var(--ease-out); }

  /* last items ko cart bar ke peechhe chhupne se bachao */
  .pos-grid { padding-bottom: 58px; }
}
.scan-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 2px solid var(--accent);
  border-radius: 14px; padding: 11px 15px;
  box-shadow: 0 0 0 4px var(--ring);
}
.scan-box svg { color: var(--accent); width: 20px; height: 20px; }
.scan-box input { border: none; outline: none; background: transparent; font-size: 15.5px; flex: 1; min-width: 0; color: var(--fg); font-weight: 500; }
@media (max-width: 640px) { .scan-box .badge { display: none; } }
.item-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.item-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 13px;
  padding: 11px 12px; cursor: pointer; position: relative; overflow: hidden;
  transition: border-color var(--dur-1), transform var(--dur-1), box-shadow var(--dur-1);
}
.item-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-2); }
.item-card:active { transform: scale(.97); }
.item-card .ic-name { font-weight: 600; font-size: 13px; line-height: 1.25; min-height: 33px; }
.item-card .ic-price { font-size: 14.5px; font-weight: 650; margin-top: 6px; }
.item-card .ic-stock { font-size: 11px; color: var(--fg-3); margin-top: 2px; }
.item-card.out { opacity: .45; }
.item-card .ic-thumb { height: 76px; border-radius: 9px; margin-bottom: 9px; overflow: hidden; background: var(--surface-2); }
.item-card .ic-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform var(--dur-2) var(--ease-out); }
.item-card:hover .ic-thumb img { transform: scale(1.05); }
.item-card .ic-thumb.ph {
  display: grid; place-items: center; font-weight: 800; font-size: 30px;
  color: var(--tc, var(--accent));
  background: linear-gradient(140deg, color-mix(in srgb, var(--tc, var(--accent)) 20%, transparent), color-mix(in srgb, var(--tc, var(--accent)) 9%, transparent));
}
.cart-line { display: flex; align-items: center; gap: 9px; padding: 9px 0; border-bottom: 1px dashed var(--border); animation: pageIn var(--dur-2) var(--ease-out); }
.qty-step { display: inline-flex; align-items: center; gap: 2px; background: var(--surface-2); border-radius: 9px; padding: 2px; }
.qty-step button {
  width: 26px; height: 26px; border: none; border-radius: 7px; background: transparent;
  color: var(--fg-2); font-size: 15px; font-weight: 700; cursor: pointer;
  transition: background var(--dur-1), transform var(--dur-1);
}
.qty-step button:hover { background: var(--surface); color: var(--fg); }
.qty-step button:active { transform: scale(.9); }
.qty-step input { width: 44px; text-align: center; border: none; background: transparent; color: var(--fg); font-weight: 600; font-size: 13.5px; }
.pay-total { font-size: 30px; font-weight: 700; letter-spacing: -.02em; }

/* unit toggle pill */
.unit-toggle { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 8px; overflow: hidden; }
.unit-toggle button { border: none; background: var(--surface); color: var(--fg-3); font-size: 11px; font-weight: 700; padding: 3px 8px; cursor: pointer; text-transform: uppercase; letter-spacing: .04em; }
.unit-toggle button.active { background: var(--primary); color: var(--on-primary); }

/* ---------- chat / agent ---------- */
.chat-wrap { display: grid; grid-template-rows: 1fr auto; height: calc(100vh - 175px); min-height: 460px; }
.chat-scroll { overflow-y: auto; padding: 6px 4px 18px; }
.msg { display: flex; gap: 10px; margin: 12px 0; animation: pageIn var(--dur-3) var(--ease-out); }
.msg .avatar { width: 30px; height: 30px; }
.msg.user { flex-direction: row-reverse; }
.bubble {
  max-width: min(620px, 82%); padding: 10px 14px; border-radius: 16px;
  font-size: 14px; line-height: 1.7; white-space: pre-wrap; word-break: break-word;
  unicode-bidi: plaintext; /* Urdu + Rs 20,000 mixed text renders in correct order */
}
.bubble:lang(ur), [dir='rtl'] .bubble { font-size: 15px; }
.ci-title { unicode-bidi: plaintext; }
.msg.user .bubble { background: var(--primary); color: var(--on-primary); border-bottom-right-radius: 6px; }
.msg.bot .bubble { background: var(--surface); border: 1px solid var(--border); border-bottom-left-radius: 6px; box-shadow: var(--shadow-1); }
.tool-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 2px; }
.tool-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 600; font-family: var(--font-mono);
  background: var(--info-soft); color: var(--info-soft-fg);
  padding: 3px 9px; border-radius: 7px;
}
.tool-chip svg { width: 11px; height: 11px; }
/* AI clarifying-question clickable options */
.ai-opts { display: flex; flex-direction: column; gap: 7px; margin-top: 9px; max-width: 460px; }
.ai-opt {
  text-align: left; padding: 11px 13px; font: inherit; font-size: 14px; line-height: 1.35;
  border: 1px solid var(--border); border-radius: 11px; background: var(--surface); color: var(--text);
  cursor: pointer; transition: border-color .12s, background .12s, transform .05s; box-shadow: var(--shadow-1);
}
.ai-opt:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-soft-fg); }
.ai-opt:active { transform: scale(.99); }
.typing { display: inline-flex; gap: 4px; padding: 6px 2px; }
.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--fg-3); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .18s; } .typing i:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 70%, 100% { opacity: .25; transform: none; } 35% { opacity: 1; transform: translateY(-3px); } }
.chat-input-bar {
  display: flex; gap: 9px; align-items: flex-end;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 9px; box-shadow: var(--shadow-2);
}
.chat-input-bar textarea {
  flex: 1; border: none; outline: none; background: transparent; color: var(--fg);
  resize: none; font-size: 14.5px; line-height: 1.45; max-height: 130px; padding: 8px 6px;
}
.mic-btn { position: relative; }
.mic-btn.listening { background: var(--danger) !important; color: #fff !important; }
.mic-btn.listening::after {
  content: ''; position: absolute; inset: -5px; border-radius: 14px;
  border: 2px solid var(--danger); animation: pulse 1.2s infinite;
}
@keyframes pulse { from { opacity: .8; transform: scale(.95); } to { opacity: 0; transform: scale(1.25); } }
.suggest-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.suggest-chip {
  font-size: 12.5px; font-weight: 500; color: var(--fg-2);
  background: var(--surface); border: 1px solid var(--border); border-radius: 99px;
  padding: 6px 13px; cursor: pointer; transition: all var(--dur-1);
}
.suggest-chip:hover { border-color: var(--accent); color: var(--accent-soft-fg); background: var(--accent-soft); }

/* ---------- chat layout (history sidebar) ---------- */
.chat-layout { display: grid; grid-template-columns: 264px minmax(0, 1fr); gap: 14px; align-items: stretch; }
.chat-side {
  overflow: hidden; display: flex; flex-direction: column;
  height: calc(100vh - 138px); position: sticky; top: 74px; align-self: start;
}
.chat-list { flex: 1; overflow-y: auto; padding: 4px 8px 10px; }
.chat-item {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 10px; margin: 2px 0; border-radius: 10px; cursor: pointer;
  transition: background var(--dur-1);
}
.chat-item:hover { background: var(--surface-2); }
.chat-item.active { background: var(--accent-soft); }
.chat-item.active .ci-title { color: var(--accent-soft-fg); }
.ci-title { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ci-sub { font-size: 11px; color: var(--fg-3); margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ci-del { opacity: 0; flex-shrink: 0; transition: opacity var(--dur-1); }
.chat-item:hover .ci-del { opacity: 1; }
.chat-main .chat-wrap { height: calc(100vh - 218px); }
.chat-side-toggle { display: none; }
@media (max-width: 900px) {
  .chat-layout { grid-template-columns: 1fr; }
  .chat-side {
    display: none; position: fixed; z-index: 70; top: 64px; left: 12px; right: 12px;
    height: auto; max-height: 65vh; box-shadow: var(--shadow-3);
  }
  .chat-side.open { display: block; animation: comboIn var(--dur-2) var(--ease-out); }
  .chat-side-toggle { display: inline-flex; }
  .chat-main .chat-wrap { height: calc(100vh - 245px); }
}

/* ---------- login page ---------- */
.auth-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 20px;
  background:
    radial-gradient(900px 480px at 85% -10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(700px 420px at -10% 100%, color-mix(in srgb, #0ea5e9 12%, transparent), transparent 60%),
    var(--bg);
}
.auth-card {
  width: 100%; max-width: 400px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 22px; box-shadow: var(--shadow-3);
  padding: 30px 28px; animation: modalIn .45s var(--ease-spring) both;
}
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; background: var(--surface-2); border-radius: 12px; padding: 4px; margin: 20px 0 18px; }
.auth-tabs button { border: none; background: transparent; padding: 8px; font-size: 13.5px; font-weight: 600; color: var(--fg-2); border-radius: 9px; cursor: pointer; transition: all var(--dur-2); }
.auth-tabs button.active { background: var(--surface); color: var(--fg); box-shadow: var(--shadow-1); }

/* ---------- print ---------- */
@media print {
  body * { visibility: hidden; }
  #print-root, #print-root * { visibility: visible; }
  #print-root { position: absolute; left: 0; top: 0; width: 100%; }
  .sidebar, .topbar, .toasts { display: none !important; }
}

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; border: 2.5px solid var(--bg); }
::-webkit-scrollbar-track { background: transparent; }