/* ================================================================
   ProNumCheck — shared design system  (v5.13)
   Instrument Sans + JetBrains Mono · dark & light palettes
   Variable names kept stable so admin.html keeps working unchanged.
   ================================================================ */

:root {
  /* ── palette: DARK (default) ─────────────────────────────── */
  --bg:        #0A0C13;
  --bg-2:      #0D1019;
  --surface:   #13161F;
  --surface-2: #1A1E2A;
  --surface-3: #232738;
  --glass:     rgba(20, 24, 36, .74);

  --border:    #232738;
  --border-2:  #2E3346;
  --border-3:  #3C4260;

  --accent:    #5B94F9;   /* azure — primary */
  --accent-2:  #A480FF;   /* iris — special moments */
  --accent-3:  #22D3EE;   /* cyan — code / mono accent */
  --accent-sulfur: #F2C94C;  /* registered / found signal */
  --grad:      linear-gradient(135deg, #5B94F9 0%, #A480FF 55%, #22D3EE 140%);
  --grad-soft: linear-gradient(135deg, rgba(91,148,249,.14), rgba(164,128,255,.14));

  --green:     #4ADE80;
  --green-dim: rgba(74,222,128,.12);
  --red:       #F0556F;
  --red-dim:   rgba(240,85,111,.12);
  --amber:     #F59B36;
  --amber-dim: rgba(245,155,54,.13);

  --text:      #EEF1FA;
  --text-2:    #B4BCD2;
  --muted:     #8A94AE;
  --muted-2:   #4F586E;

  /* type */
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* type scale (minor third, 1.2) */
  --fs-xs:   .72rem;   --fs-sm:  .82rem;   --fs-base: .94rem;
  --fs-md:   1.06rem;  --fs-lg:  1.26rem;  --fs-xl:  1.56rem;
  --fs-2xl:  1.92rem;  --fs-3xl: 2.44rem;  --fs-4xl: 3.00rem;

  /* radii + shadow */
  --r-sm: 7px; --r: 10px; --r-lg: 14px; --r-xl: 20px;
  --sh-1: 0 1px 2px rgba(0,0,0,.4);
  --sh-2: 0 10px 30px -10px rgba(0,0,0,.55);
  --sh-3: 0 24px 60px -18px rgba(0,0,0,.7);
  --glow: 0 0 0 1px rgba(91,148,249,.35), 0 10px 32px -8px rgba(91,148,249,.5);

  --ease: cubic-bezier(.22,.61,.36,1);
  --t:    .18s var(--ease);

  color-scheme: dark;
  box-sizing: border-box;
}

/* ── palette: AUTO follows OS when the user hasn't picked ──────── */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]):not([data-theme="light"]) {
    --bg:        #F7F4EE;
    --bg-2:      #FBF9F3;
    --surface:   #FFFFFF;
    --surface-2: #F3F0E8;
    --surface-3: #EBE7DC;
    --glass:     rgba(255,255,255,.78);

    --border:    #E4E0D4;
    --border-2:  #D6D1C2;
    --border-3:  #BEB8A6;

    --accent:    #2E62D3;
    --accent-2:  #6F49DC;
    --accent-3:  #0E8CB2;
    --accent-sulfur: #8E6A00;
    --grad:      linear-gradient(135deg, #2E62D3 0%, #6F49DC 55%, #0E8CB2 140%);
    --grad-soft: linear-gradient(135deg, rgba(46,98,211,.08), rgba(111,73,220,.08));

    --green:     #118A4A;
    --green-dim: rgba(17,138,74,.10);
    --red:       #C53352;
    --red-dim:   rgba(197,51,82,.10);
    --amber:     #B57205;
    --amber-dim: rgba(181,114,5,.11);

    --text:      #0F121A;
    --text-2:    #3A3F50;
    --muted:     #5F6578;
    --muted-2:   #9298A7;

    --sh-1: 0 1px 2px rgba(14,16,22,.06);
    --sh-2: 0 10px 28px -12px rgba(14,16,22,.14);
    --sh-3: 0 26px 60px -22px rgba(14,16,22,.18);
    --glow: 0 0 0 1px rgba(46,98,211,.35), 0 10px 32px -10px rgba(46,98,211,.45);

    color-scheme: light;
  }
}

/* ── palette: explicit LIGHT choice ─────────────────────────── */
:root[data-theme="light"] {
  --bg:        #F7F4EE;
  --bg-2:      #FBF9F3;
  --surface:   #FFFFFF;
  --surface-2: #F3F0E8;
  --surface-3: #EBE7DC;
  --glass:     rgba(255,255,255,.78);

  --border:    #E4E0D4;
  --border-2:  #D6D1C2;
  --border-3:  #BEB8A6;

  --accent:    #2E62D3;
  --accent-2:  #6F49DC;
  --accent-3:  #0E8CB2;
  --accent-sulfur: #8E6A00;
  --grad:      linear-gradient(135deg, #2E62D3 0%, #6F49DC 55%, #0E8CB2 140%);
  --grad-soft: linear-gradient(135deg, rgba(46,98,211,.08), rgba(111,73,220,.08));

  --green:     #118A4A;
  --green-dim: rgba(17,138,74,.10);
  --red:       #C53352;
  --red-dim:   rgba(197,51,82,.10);
  --amber:     #B57205;
  --amber-dim: rgba(181,114,5,.11);

  --text:      #0F121A;
  --text-2:    #3A3F50;
  --muted:     #5F6578;
  --muted-2:   #9298A7;

  --sh-1: 0 1px 2px rgba(14,16,22,.06);
  --sh-2: 0 10px 28px -12px rgba(14,16,22,.14);
  --sh-3: 0 26px 60px -22px rgba(14,16,22,.18);
  --glow: 0 0 0 1px rgba(46,98,211,.35), 0 10px 32px -10px rgba(46,98,211,.45);

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
  padding-top: env(safe-area-inset-top, 0);
  padding-bottom: env(safe-area-inset-bottom, 0);
  transition: background .3s var(--ease), color .3s var(--ease);
}

/* ── ambient background ────────────────────────────────────── */
.bg-layer {
  position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  background:
    radial-gradient(900px 600px at 12% -5%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(800px 620px at 92% 8%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent 60%),
    radial-gradient(1200px 800px at 50% 115%, color-mix(in srgb, var(--accent-3) 8%, transparent), transparent 60%),
    var(--bg);
  transition: background .3s var(--ease);
}
.bg-layer::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--text) 2%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text) 2%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}

/* ── typography helpers ────────────────────────────────────── */
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.dim { color: var(--muted-2); }
.text-g { color: var(--green); } .text-r { color: var(--red); } .text-a { color: var(--amber); }
.text-sulfur { color: var(--accent-sulfur); }
a { color: var(--accent); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--accent-2); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
::selection { background: color-mix(in srgb, var(--accent-2) 40%, transparent); color: var(--text); }

/* ── buttons ───────────────────────────────────────────────── */
.btn {
  --btn-bg: var(--surface-3);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--sans); font-size: .86rem; font-weight: 500; line-height: 1;
  padding: 10px 16px; border-radius: var(--r-sm);
  border: 1px solid var(--border-2); background: var(--btn-bg); color: var(--text);
  cursor: pointer; white-space: nowrap; user-select: none;
  transition: transform .12s var(--ease), background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease), opacity .18s var(--ease);
}
.btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.btn:hover:not(:disabled) { background: var(--border-2); border-color: var(--border-3); }
.btn:active:not(:disabled) { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 40%, transparent); }

.btn-primary {
  background: var(--grad); background-size: 180% 180%;
  border-color: transparent; color: #fff;
  box-shadow: 0 10px 26px -12px color-mix(in srgb, var(--accent) 65%, transparent);
  position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .7s var(--ease); pointer-events: none;
}
.btn-primary:hover:not(:disabled) { background-position: 100% 0; box-shadow: var(--glow); }
.btn-primary:hover:not(:disabled)::after { transform: translateX(120%); }

.btn-ghost { background: transparent; border-color: var(--border-2); color: var(--text-2); }
.btn-ghost:hover:not(:disabled) { background: var(--surface-2); color: var(--text); border-color: var(--border-3); }

.btn-danger { background: var(--red-dim); border-color: color-mix(in srgb, var(--red) 30%, transparent); color: var(--red); }
.btn-danger:hover:not(:disabled) { background: color-mix(in srgb, var(--red) 18%, transparent); border-color: var(--red); }

.btn-sm { padding: 7px 12px; font-size: .76rem; border-radius: 7px; }
.btn-block { width: 100%; }

/* ── inputs ────────────────────────────────────────────────── */
.input, input.input, select.input, textarea.input {
  width: 100%; font-family: var(--sans); font-size: .9rem; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border-2); border-radius: var(--r-sm);
  padding: 11px 14px; outline: none;
  transition: border-color var(--t), box-shadow var(--t), background var(--t);
  appearance: none;
}
.input::placeholder { color: var(--muted-2); }
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); background: var(--surface-3); }
.input.error, .input[aria-invalid="true"] { border-color: var(--red); box-shadow: 0 0 0 3px color-mix(in srgb, var(--red) 14%, transparent); }
select.input { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A94AE' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 34px; cursor: pointer; }
textarea.input { resize: vertical; min-height: 120px; font-family: var(--mono); font-size: .8rem; line-height: 1.6; }
label { display: block; font-size: .76rem; font-weight: 500; color: var(--muted); margin-bottom: 7px; }

/* ── cards / panels ────────────────────────────────────────── */
.card, .panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-2);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .3s var(--ease);
}
.card { padding: 22px; }
.panel { padding: 24px; }

/* ── pills / badges ────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: .64rem; font-weight: 600;
  letter-spacing: .02em;
  padding: 3px 9px; border-radius: 999px; border: 1px solid transparent; white-space: nowrap;
}
.pill-g { background: var(--green-dim); color: var(--green); border-color: color-mix(in srgb, var(--green) 28%, transparent); }
.pill-r { background: var(--red-dim);   color: var(--red);   border-color: color-mix(in srgb, var(--red) 28%, transparent); }
.pill-a { background: var(--amber-dim); color: var(--amber); border-color: color-mix(in srgb, var(--amber) 28%, transparent); }
.pill-b { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); border-color: color-mix(in srgb, var(--accent) 28%, transparent); }
.pill-m { background: var(--surface-3); color: var(--muted); border-color: var(--border-2); }
.pill-sulfur { background: color-mix(in srgb, var(--accent-sulfur) 14%, transparent); color: var(--accent-sulfur); border-color: color-mix(in srgb, var(--accent-sulfur) 32%, transparent); }

/* ── spinner + dots ────────────────────────────────────────── */
.spinner {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--text) 14%, transparent); border-top-color: var(--accent);
  animation: spin .7s linear infinite; display: inline-block; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 0 0 rgba(74,222,128,.5); animation: pulse 1.8s var(--ease) infinite; flex-shrink: 0; }
.live-dot.warn { background: var(--amber); box-shadow: 0 0 0 0 color-mix(in srgb, var(--amber) 50%, transparent); }
.live-dot.off { background: var(--muted-2); animation: none; box-shadow: none; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(74,222,128,.5);} 70% { box-shadow: 0 0 0 7px rgba(74,222,128,0);} 100% { box-shadow: 0 0 0 0 rgba(74,222,128,0);} }

/* ── kbd ──────────────────────────────────────────────────── */
kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; padding: 0 6px;
  font-family: var(--mono); font-size: .68rem; font-weight: 500;
  color: var(--text-2); background: var(--surface-2);
  border: 1px solid var(--border-2); border-bottom-width: 2px; border-radius: 5px;
}

/* ── skeleton shimmer ──────────────────────────────────────── */
.shimmer { position: relative; overflow: hidden; background: var(--surface-2); }
.shimmer::after {
  content: ''; position: absolute; inset: 0; transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--text) 6%, transparent), transparent);
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer { 100% { transform: translateX(100%); } }

/* ── toasts ────────────────────────────────────────────────── */
#toasts { position: fixed; bottom: calc(22px + env(safe-area-inset-bottom, 0px)); right: 22px; z-index: 1000; display: flex; flex-direction: column; gap: 10px; max-width: min(360px, 90vw); }
.toast {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--glass); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-2); border-left: 3px solid var(--accent);
  padding: 12px 15px; border-radius: var(--r); font-size: .84rem; color: var(--text);
  box-shadow: var(--sh-3); animation: toastIn .3s var(--ease);
}
.toast.ok { border-left-color: var(--green); } .toast.err { border-left-color: var(--red); } .toast.warn { border-left-color: var(--amber); }
.toast.hide { animation: toastOut .25s var(--ease) forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateX(24px) scale(.96); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(24px) scale(.96); } }

/* ── modal ────────────────────────────────────────────────── */
.modal-bg { position: fixed; inset: 0; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); display: none; place-items: center; z-index: 200; padding: 20px; opacity: 0; transition: opacity .2s var(--ease); }
.modal-bg.show { display: grid; opacity: 1; }
.modal { width: 100%; max-width: 560px; max-height: 90vh; overflow: auto; background: var(--surface); border: 1px solid var(--border-2); border-radius: var(--r-xl); box-shadow: var(--sh-3); transform: translateY(14px) scale(.98); transition: transform .24s var(--ease); }
.modal-bg.show .modal { transform: none; }
.modal-h { padding: 18px 22px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 10px; position: sticky; top: 0; background: var(--surface); }
.modal-h h3 { font-size: 1rem; font-weight: 600; }
.modal-b { padding: 20px 22px; }
.modal-f { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; position: sticky; bottom: 0; background: var(--surface); }
.x { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 1.3rem; line-height: 1; padding: 4px 8px; border-radius: 6px; transition: color var(--t), background var(--t); }
.x:hover { color: var(--text); background: var(--surface-2); }

/* ── toggle switch ────────────────────────────────────────── */
.toggle { position: relative; width: 40px; height: 22px; background: var(--border-2); border-radius: 999px; cursor: pointer; transition: background var(--t); flex-shrink: 0; }
.toggle::after { content: ''; position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; background: var(--surface); border-radius: 50%; transition: transform var(--t); box-shadow: var(--sh-1); }
.toggle.on { background: var(--accent); }
.toggle:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 40%, transparent); }
.toggle.on::after { transform: translateX(18px); }

/* ── misc ──────────────────────────────────────────────────── */
.flex { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.hr { height: 1px; background: var(--border); border: 0; margin: 16px 0; }
.tag { display: inline-flex; align-items: center; padding: 2px 8px; background: var(--surface-3); border: 1px solid var(--border-2); border-radius: 6px; font-size: .68rem; color: var(--muted); font-family: var(--mono); }
.empty { text-align: center; color: var(--muted); padding: 40px 20px; font-size: .88rem; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; background: var(--surface-2); border: 1px solid var(--border-2); border-radius: 999px; font-size: .76rem; cursor: pointer; user-select: none; transition: all var(--t); color: var(--text-2); font-family: var(--sans); }
.chip:hover { border-color: var(--border-3); color: var(--text); }
.chip.on { background: var(--grad-soft); border-color: color-mix(in srgb, var(--accent) 45%, transparent); color: var(--text); }

/* ── scrollbar ────────────────────────────────────────────── */
* { scrollbar-width: thin; scrollbar-color: var(--border-3) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--border-3); background-clip: padding-box; }

/* ── reveal ───────────────────────────────────────────────── */
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.rise { animation: rise .4s var(--ease) both; }
@keyframes pop { 0% { transform: scale(.94); opacity: 0; } 60% { transform: scale(1.02); } 100% { transform: scale(1); opacity: 1; } }
.pop { animation: pop .32s var(--ease) both; }

/* ── focus ────────────────────────────────────────────────── */
a:focus-visible, [role="button"]:focus-visible, [tabindex]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 6px;
}

/* ── sr-only ──────────────────────────────────────────────── */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ── theme toggle (button in header) ──────────────────────── */
.theme-toggle {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--border-2);
  color: var(--muted); cursor: pointer; display: grid; place-items: center;
  transition: all var(--t); flex-shrink: 0;
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-3); }
.theme-toggle svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .ic-sun, .theme-toggle .ic-moon, .theme-toggle .ic-auto { display: none; }
:root[data-theme="light"] .theme-toggle .ic-sun,
:root[data-theme="dark"]  .theme-toggle .ic-moon { display: block; }
:root:not([data-theme])   .theme-toggle .ic-auto,
:root[data-theme="auto"]  .theme-toggle .ic-auto { display: block; }

/* ── motion gating ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .bg-layer { background: var(--bg); }
}

/* ── touch comfort on phones ──────────────────────────────── */
img, svg, video, canvas { max-width: 100%; }
@media (pointer: coarse) {
  .input { font-size: 16px; }
  .btn { min-height: 42px; }
  .btn-sm { min-height: 36px; }
  .chip { min-height: 36px; }
}
@media (max-width: 640px) {
  #toasts { left: 14px; right: 14px; max-width: none; }
  .modal-bg { padding: 12px; }
  .card:hover { transform: none; }
}

/* ── admin.html keeps its own layer; a few compat aliases ─── */
.pill-m, .pill { font-variant-numeric: tabular-nums; }