:root {
  --ink: #1B2A3A;
  --ink-2: #4A5868;
  --ink-3: #6B7785;
  --line: #E3E6EA;
  --line-2: #C5CDD6;
  --ground: #F4F5F7;
  --card: #FFFFFF;
  --accent: #0F766E;
  --accent-dark: #0B5A54;
  --accent-soft: #D7EDEA;
  --warn: #B45309;
  --warn-line: #D97706;
  --warn-soft: #FFFBF5;
  --warn-chip: #FDF1E3;
  --danger: #B42318;
  --radius: 12px;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
[dir="rtl"] { --sans: "Vazirmatn", "IBM Plex Sans", system-ui, sans-serif; }

* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--sans); font-size: 15px; line-height: 1.5; }
h1, h2, h3 { margin: 0; letter-spacing: -0.01em; }
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
.skip { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip:focus { width: auto; height: auto; clip: auto; inset-inline-start: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 10; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-2); }
.hidden { display: none !important; }

/* Buttons */
.btn { font: inherit; font-weight: 600; border-radius: 8px; padding: 10px 18px; min-height: 44px; border: 1px solid var(--line-2); background: #fff; color: var(--ink); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; }
.btn:hover { border-color: var(--ink-3); color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); color: #fff; }
.btn.dark { background: #fff; color: var(--ink); border: 0; }
.btn.link { border: 0; background: none; color: var(--accent); padding: 8px; min-height: 36px; font-weight: 500; }
.btn.danger { color: var(--danger); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* Header */
.topbar { background: #fff; border-bottom: 1px solid var(--line); padding: 0 24px; min-height: 64px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 600; color: var(--ink); text-decoration: none; }
.topbar nav { display: flex; gap: 20px; }
.topbar nav a { color: var(--ink-2); text-decoration: none; padding: 20px 0; border-bottom: 2px solid transparent; }
.topbar nav a[aria-current="page"] { color: var(--ink); font-weight: 600; border-color: var(--accent); }
.topbar .right { margin-inline-start: auto; display: flex; align-items: center; gap: 12px; font-size: 14px; flex-wrap: wrap; }
.lang { display: flex; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; }
.lang button { font: inherit; border: 0; background: #fff; color: var(--ink); padding: 6px 12px; min-height: 36px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }

/* Layout */
main { max-width: 1216px; margin: 0 auto; padding: 32px 24px 64px; }
.cols { display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-start; }
.col-main { flex: 999 1 640px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.col-side { flex: 1 1 300px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.pad { padding: 20px; }

/* Upload */
.drop { background: #fff; border: 2px dashed #9FB3C3; border-radius: var(--radius); padding: 28px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.drop.over { border-color: var(--accent); background: #F2FAF9; }
.drop .text { flex: 1 1 240px; }
.drop .title { font-size: 17px; font-weight: 600; margin: 0; }
.drop .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Table */
.table-head { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.chip { font-size: 13px; font-weight: 500; border-radius: 999px; padding: 3px 10px; }
.chip.warn { color: var(--warn); background: var(--warn-chip); }
.chip.ok { color: var(--accent); background: var(--accent-soft); }
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 760px; }
th { text-align: start; color: var(--ink-2); font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; padding: 12px 8px; }
td { padding: 12px 8px; border-top: 1px solid #EEF0F3; }
th:first-child, td:first-child { padding-inline-start: 20px; }
th:last-child, td:last-child { padding-inline-end: 20px; }
td.r, th.r { text-align: end; }
td.num { white-space: nowrap; }
tr.flag { background: var(--warn-soft); }
.status-ready { color: var(--accent); font-weight: 500; }
.status-flag { color: var(--warn); font-weight: 600; }
.status-wait { color: var(--ink-2); }
.status-failed { color: var(--danger); font-weight: 600; }
.empty { padding: 40px 20px; text-align: center; color: var(--ink-2); }

/* Side panel */
.summary { background: var(--ink); color: #fff; border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.summary .label { margin: 0; font-size: 12px; color: #C9D4DE; }
.summary .value { margin: 2px 0 0; font-size: 22px; font-weight: 500; }
.summary .grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.summary p.note { margin: 0; font-size: 13px; color: #C9D4DE; }
.radio { display: flex; gap: 10px; align-items: center; min-height: 32px; font-size: 14px; }
.meter { height: 8px; border-radius: 999px; background: var(--line); overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--accent); }

/* Review */
.review { display: flex; flex-wrap: wrap; gap: 32px; align-items: flex-start; }
.preview { flex: 1 1 420px; min-width: 0; background: #E8EBEF; border-radius: var(--radius); padding: 24px; display: flex; justify-content: center; }
.preview img { max-width: 100%; max-height: 75vh; object-fit: contain; background: #fff; }
.preview iframe { width: 100%; height: 75vh; border: 0; background: #fff; }
.fields { flex: 1 1 440px; min-width: 0; padding: 28px; display: flex; flex-direction: column; gap: 20px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.wide { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 500; color: var(--ink-2); }
.field input, .field select { font: inherit; font-size: 15px; border: 1px solid var(--line-2); border-radius: 8px; padding: 10px 12px; min-height: 44px; background: #fff; color: var(--ink); width: 100%; }
.field input.num { font-family: var(--mono); }
.field.low label { color: var(--warn); font-weight: 600; }
.field.low input, .field.low select { border: 2px solid var(--warn-line); background: var(--warn-soft); }
.hint { margin: 0; font-size: 12px; }
.hint.ok { color: var(--accent); }
.hint.bad { color: var(--warn); }
.reasons { margin: 0; padding: 12px 16px; background: var(--warn-chip); border-radius: 8px; color: #7A3A06; font-size: 14px; }
.reasons ul { margin: 4px 0 0; padding-inline-start: 20px; }
.actions-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* Auth */
.auth { max-width: 420px; margin: 8vh auto; padding: 32px; }
.auth form { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.error { color: var(--danger); font-size: 14px; margin: 0; }

/* Plans */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.plan { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.plan .price { font-size: 28px; font-weight: 600; }

#toast { position: fixed; inset-inline-start: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 8px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: calc(100vw - 32px); }
[dir="rtl"] #toast { transform: translateX(50%); }
#toast.show { opacity: 1; }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .topbar { padding: 8px 16px; }
  main { padding: 20px 16px 48px; }
}