/* «چیدمان» — gypsum, ink, Persian turquoise. Saffron is reserved for measurements and
   lapis for the designer plan; neither is decoration. */
@font-face { font-family: IRANSans; src: url(/vendor/fonts/iransans-300.woff2) format('woff2'); font-weight: 100 349; font-display: swap; }
@font-face { font-family: IRANSans; src: url(/vendor/fonts/iransans-400.woff2) format('woff2'); font-weight: 350 449; font-display: swap; }
@font-face { font-family: IRANSans; src: url(/vendor/fonts/iransans-500.woff2) format('woff2'); font-weight: 450 599; font-display: swap; }
@font-face { font-family: IRANSans; src: url(/vendor/fonts/iransans-700.woff2) format('woff2'); font-weight: 600 799; font-display: swap; }
@font-face { font-family: IRANSans; src: url(/vendor/fonts/iransans-900.woff2) format('woff2'); font-weight: 800 1000; font-display: swap; }

:root {
  --paper: #f5f5f1; --card: #ffffff; --sunk: #ecece6;
  --ink: #1b2124; --ink-2: #434d52; --muted: #737c80; --line: #e1e2dc; --line-2: #cfd1ca;
  --firuze: #0e7c86; --firuze-deep: #0a5c64; --firuze-wash: #e2f0f0;
  --saffron: #d6961a; --saffron-wash: #fbf1dc;
  --lapis: #27346e; --lapis-wash: #e7e9f3;
  --brick: #b4472f; --brick-wash: #f8e6e1;
  --ok: #2f7d4f;
  --r-sm: 8px; --r: 12px; --r-lg: 20px;
  --shadow: 0 1px 2px rgba(27,33,36,.06), 0 8px 24px -12px rgba(27,33,36,.18);
  --shadow-lg: 0 2px 6px rgba(27,33,36,.06), 0 24px 60px -20px rgba(27,33,36,.32);
  --display: IRANSans, Tahoma, sans-serif;
  --ui: IRANSans, Tahoma, sans-serif;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 15px/1.75 var(--ui); }
img, svg, canvas { display: block; max-width: 100%; }
a { color: var(--firuze-deep); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--firuze); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.35; margin: 0 0 .5em; letter-spacing: 0; }
h1 { font-size: clamp(32px, 5vw, 54px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 19px; }
p { margin: 0 0 1em; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }

/* ───────────────────────────── buttons & fields */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px;
  border-radius: 999px; border: 1px solid var(--line-2); background: var(--card); color: var(--ink); font-weight: 600;
  cursor: pointer; text-decoration: none !important; white-space: nowrap; transition: background .15s, border-color .15s, color .15s; }
.btn:hover { border-color: var(--ink-2); }
.btn.primary { background: var(--firuze); border-color: var(--firuze); color: #fff; }
.btn.primary:hover { background: var(--firuze-deep); border-color: var(--firuze-deep); }
.btn.pro { background: var(--lapis); border-color: var(--lapis); color: #fff; }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--sunk); }
.btn.danger { color: var(--brick); }
.btn.sm { min-height: 36px; padding: 0 13px; font-size: 14px; }
.btn.icon { width: 40px; min-height: 40px; padding: 0; }
.btn:disabled { opacity: .5; cursor: default; }
.btn svg { width: 18px; height: 18px; flex: none; }

label.field { display: grid; gap: 6px; font-size: 14px; color: var(--ink-2); font-weight: 600; }
.input, input[type=text], input[type=password], input[type=tel], input[type=number], input[type=search], select, textarea {
  width: 100%; min-height: 44px; padding: 9px 13px; border: 1px solid var(--line-2); border-radius: var(--r-sm);
  background: var(--card); font-size: 16px; font-weight: 400; color: var(--ink); }
textarea { min-height: 96px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--firuze); box-shadow: 0 0 0 3px var(--firuze-wash); }
.check { display: flex; gap: 10px; align-items: center; cursor: pointer; font-weight: 500; color: var(--ink); }
.check input { width: 20px; height: 20px; accent-color: var(--firuze); }

/* ───────────────────────────── header */
.top { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); view-transition-name: top; }
.top .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none !important; }
.brand b { font: 700 25px/1 var(--display); }
.brand svg { width: 30px; height: 30px; }
.top nav { display: flex; gap: 4px; margin-inline-start: 12px; }
.top nav a { padding: 8px 12px; border-radius: 999px; color: var(--ink-2); font-weight: 500; text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { background: var(--sunk); color: var(--ink); }
.top .end { margin-inline-start: auto; display: flex; gap: 8px; align-items: center; }
.plan-chip { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: var(--sunk); color: var(--ink-2); }
.plan-chip.pro { background: var(--lapis-wash); color: var(--lapis); }
.plan-chip.plus { background: var(--firuze-wash); color: var(--firuze-deep); }
@media (max-width: 760px) { .top nav { display: none; } .top .end .hide-sm { display: none; } }

/* ───────────────────────────── surfaces */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; background: var(--sunk); color: var(--ink-2); }
.tag.sent { background: var(--saffron-wash); color: #8a5c05; }
.tag.approved { background: #e3f1e8; color: var(--ok); }
.tag.changes { background: var(--brick-wash); color: var(--brick); }
.empty { text-align: center; padding: 48px 20px; color: var(--muted); }
.empty h3 { color: var(--ink); }

/* ───────────────────────────── modal & toast */
dialog.modal { border: 0; padding: 0; border-radius: var(--r-lg); box-shadow: var(--shadow-lg); width: min(560px, calc(100vw - 24px));
  max-height: calc(100dvh - 32px); background: var(--card); color: var(--ink); }
dialog.modal.wide { width: min(920px, calc(100vw - 24px)); }
dialog.modal::backdrop { background: rgba(27,33,36,.42); }
.modal-head { display: flex; align-items: center; gap: 12px; padding: 18px 22px 0; }
.modal-head h3 { margin: 0; flex: 1; }
.modal-body { padding: 16px 22px 22px; overflow: auto; max-height: calc(100dvh - 120px); }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; padding: 0 22px 20px; flex-wrap: wrap; }
.toast { position: fixed; inset-inline: 0; bottom: 22px; margin-inline: auto; width: max-content; max-width: calc(100vw - 32px);
  background: var(--ink); color: #fff; padding: 11px 18px; border-radius: 999px; z-index: 100; box-shadow: var(--shadow-lg);
  font-weight: 500; animation: toast-in .2s ease-out; display: flex; gap: 12px; align-items: center; }
.toast a { color: #9ee0e5; font-weight: 700; }
.toast.err { background: var(--brick); }
@keyframes toast-in { from { transform: translateY(10px); opacity: 0; } }

.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); gap: 18px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

footer.foot { border-top: 1px solid var(--line); margin-top: 72px; padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer.foot .wrap { display: flex; flex-wrap: wrap; gap: 18px 32px; align-items: center; }
footer.foot nav { display: flex; gap: 18px; flex-wrap: wrap; }

@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .16s; }
@media (prefers-reduced-motion: reduce) { *, ::view-transition-group(*) { animation: none !important; transition: none !important; } }