/* Influencer Rate Calculator — styles. System fonts only (no third-party requests). */
:root {
  --bg: #f6f6f3;
  --surface: #ffffff;
  --ink: #1b1b1a;
  --muted: #55554f;
  --line: #d9d9d2;
  --accent: #1d4a73;
  --accent-ink: #ffffff;
  --accent-soft: #e8eff6;
  --warn-bg: #fff6e0;
  --warn-line: #d9b24a;
  --err: #9b1c1c;
  --err-bg: #fdecec;
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", "Geeza Pro", Tahoma, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--font); }
[dir="rtl"] body { line-height: 1.7; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5rem; }
h2 { font-size: 1.25rem; } h3 { font-size: 1.1rem; } h4 { font-size: 1rem; margin-top: 1.25rem; }
p { margin: 0 0 .75rem; }
.inline { display: inline; font-size: 1.1rem; margin: 0; }
.wrap { max-width: 860px; margin-inline: auto; padding-inline: 1rem; }
.num { unicode-bidi: isolate; white-space: nowrap; font-variant-numeric: tabular-nums; }
code { font-family: var(--mono); font-size: .9em; }
:focus-visible { outline: 3px solid #0b57d0; outline-offset: 2px; }
.noscript { padding: 1rem; text-align: center; }

/* Header + stepper */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-row { display: flex; gap: 1rem; align-items: center; justify-content: space-between; padding-block: 1rem; }
.app-title { font-size: 1.35rem; margin: 0; }
.tagline { color: var(--muted); margin: .15rem 0 0; font-size: .95rem; }
.stepper ol { list-style: none; display: flex; gap: .5rem; padding: 0; margin: 1rem 0; }
.stepper li { flex: 1; display: flex; gap: .5rem; align-items: center; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--muted); font-size: .9rem; }
.stepper li.current { border-color: var(--accent); color: var(--ink); font-weight: 600; }
.stepper li.done { color: var(--ink); }
.step-n { display: inline-grid; place-items: center; min-width: 1.6rem; height: 1.6rem; border-radius: 50%; border: 1px solid currentColor; font-size: .8rem; }
.current .step-n { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* Cards, notices */
main { padding-block: .25rem 3rem; }
main:focus { outline: none; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.1rem 1rem; margin-block: 1rem; }
.notice { background: var(--accent-soft); border: 1px solid #c3d4e4; border-radius: var(--radius); padding: .8rem 1rem; margin-block: 1rem; font-size: .93rem; }
.notice p:last-child { margin-bottom: 0; }
.notice-title { font-weight: 600; }
.badge { display: inline-block; padding: .05rem .5rem; border-radius: 99px; background: var(--accent); color: var(--accent-ink); font-size: .75rem; font-weight: 600; vertical-align: middle; }
.pill { display: inline-block; padding: 0 .45rem; border: 1px solid var(--line); border-radius: 99px; font-size: .75rem; color: var(--muted); background: #fafaf8; }
.alert { background: var(--err-bg); border: 1px solid #e0a3a3; border-radius: var(--radius); padding: .8rem 1rem; margin-block: 1rem; }
.alert ul, .warnings ul { margin: .25rem 0 0; padding-inline-start: 1.2rem; }
.alert a { color: var(--err); }
.alert-title { font-weight: 600; margin-bottom: .25rem; }
.warnings { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: var(--radius); padding: .7rem 1rem; margin-block: 1rem; font-size: .93rem; }

/* Forms */
.field { margin-block: .75rem; }
.field.grow { flex: 1; margin: 0; }
label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: .25rem; }
.opt { font-weight: 400; color: var(--muted); }
.help { color: var(--muted); font-size: .86rem; margin: .3rem 0 0; }
.error { color: var(--err); font-size: .88rem; margin: .3rem 0 0; font-weight: 600; }
input[type="text"], select { width: 100%; min-height: 2.75rem; padding: .5rem .7rem; font: inherit; color: var(--ink); background: #fff; border: 1px solid #8a8a82; border-radius: 6px; }
input[aria-invalid="true"] { border-color: var(--err); border-width: 2px; }
.input-wrap { position: relative; }
.input-wrap .suffix { position: absolute; inset-block: 0; inset-inline-end: .7rem; display: flex; align-items: center; color: var(--muted); pointer-events: none; }
.input-wrap input:has(+ .suffix) { padding-inline-end: 2rem; }
fieldset { border: 0; padding: 0; margin: 1rem 0 0; min-width: 0; }
legend { font-weight: 700; padding: 0; margin-bottom: .25rem; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 0 1rem; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.platform { border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; margin-block: 1rem; background: #fcfcfa; }
.platform-head { display: flex; gap: 1rem; align-items: flex-end; }
.deliv { padding: .35rem 0; border-top: 1px solid #ecece6; }
.deliv:first-of-type { border-top: 0; }
.deliv .field { margin: .25rem 0 .25rem 1.75rem; max-width: 9rem; }
[dir="rtl"] .deliv .field { margin: .25rem 1.75rem .25rem 0; }
.check { display: flex; gap: .6rem; align-items: flex-start; font-weight: 500; min-height: 2.25rem; padding-block: .3rem; cursor: pointer; }
.check input { width: 1.25rem; height: 1.25rem; margin-top: .2rem; flex: none; accent-color: var(--accent); }
.right { margin-block: .5rem; }
.right .help { margin-inline-start: 1.85rem; }
details > summary { cursor: pointer; font-weight: 600; min-height: 2.25rem; display: flex; align-items: center; }
details.sub { margin-top: 1rem; }
details.sub > summary { font-weight: 600; color: var(--accent); }
.adv > summary { list-style: revert; }

/* Buttons */
.btn { font: inherit; font-weight: 600; min-height: 2.75rem; padding: .55rem 1.1rem; border-radius: 6px; border: 1px solid var(--accent); cursor: pointer; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-secondary { background: #fff; color: var(--accent); }
.btn-quiet { background: transparent; color: var(--accent); border-color: var(--line); font-weight: 500; }
.btn:hover { filter: brightness(.95); }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-block: 1.25rem; }

/* Results */
.headline { background: var(--surface); border: 1px solid var(--accent); border-radius: var(--radius); padding: 1.1rem 1.2rem; margin-block: 1rem; }
.headline-label { color: var(--muted); font-size: .9rem; margin: 0; }
.headline-value { font-size: clamp(1.6rem, 6vw, 2.4rem); font-weight: 700; margin: .1rem 0; }
.headline-note { margin: 0; color: var(--muted); font-size: .9rem; }
.table-scroll { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: .95rem; }
.tbl th, .tbl td { padding: .55rem .5rem; border-bottom: 1px solid #e6e6df; text-align: start; vertical-align: top; }
.tbl thead th { font-size: .82rem; color: var(--muted); font-weight: 600; }
.tbl .r { text-align: end; }
.tbl tfoot th, .tbl tfoot td { border-bottom: 0; font-weight: 700; }
.tbl th[scope="row"] { font-weight: 600; }
.sub-note { display: block; font-weight: 400; color: var(--muted); font-size: .8rem; }
.tbl.compact th, .tbl.compact td { padding: .35rem .5rem; font-size: .88rem; }
.grand-total { display: flex; justify-content: space-between; gap: 1rem; font-weight: 700; padding: .75rem 1rem; border-block: 2px solid var(--ink); }
.factors, .notes { margin: 0; padding-inline-start: 1.2rem; }
.factors li { padding-block: .1rem; }
.factor-block h4 { margin: .75rem 0 .25rem; font-size: .95rem; }
.method h4 { margin-top: 1.25rem; }
.formula { overflow-x: auto; padding: .6rem .8rem; background: #f3f3ee; border-radius: 6px; text-align: left; }
.formula-notes { padding-inline-start: 1.2rem; color: var(--muted); font-size: .9rem; }
.worked { font-size: .88rem; }
.worked .lbl, .legend .lbl { font-weight: 600; margin-inline-end: .5rem; }
.worked code { display: inline-block; direction: ltr; unicode-bidi: isolate; }
.kind { display: inline-block; padding: 0 .45rem; border-radius: 4px; font-size: .74rem; font-weight: 600; border: 1px solid; white-space: nowrap; }
.kind-input { background: #e6f2e8; color: #1c5a2b; border-color: #9ec9a8; }
.kind-assumption { background: #fff3d6; color: #6b4a00; border-color: #d9b24a; }
.kind-carried { background: #f2e9f7; color: #55306e; border-color: #c9aedb; }
.kind-external { background: #e3eefb; color: #123e73; border-color: #9db8dc; }
.kind-derived { background: #efefea; color: #444; border-color: #c8c8c0; }
.src-list { padding-inline-start: 1.2rem; font-size: .9rem; }
.src-list li { margin-block: .6rem; }
.version { color: var(--muted); font-size: .85rem; }
.sharebox { margin-block: 1rem; padding: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.sharebox input { direction: ltr; text-align: left; font-family: var(--mono); font-size: .8rem; }
.site-footer { border-top: 1px solid var(--line); background: var(--surface); padding-block: 1rem; color: var(--muted); font-size: .88rem; }

/* Rate card (screen) */
.ratecard { background: #fff; color: #111; border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem 1.75rem; margin-block: 1rem; font-size: .95rem; }
.rc-head { border-bottom: 2px solid #111; padding-bottom: .75rem; margin-bottom: 1rem; }
.rc-kicker { text-transform: uppercase; letter-spacing: .08em; font-size: .75rem; color: #555; margin: 0 0 .25rem; }
[dir="rtl"] .rc-kicker { text-transform: none; letter-spacing: 0; }
.rc-head h2 { font-size: 1.7rem; margin: 0; }
.rc-sub { margin: .25rem 0 0; color: #444; }
.rc-meta { border-collapse: collapse; margin-bottom: 1rem; font-size: .88rem; }
.rc-meta th { text-align: start; font-weight: 600; color: #555; padding: .15rem 1.5rem .15rem 0; }
[dir="rtl"] .rc-meta th { padding: .15rem 0 .15rem 1.5rem; }
.rc-meta td { padding: .15rem 0; }
.rc-section { margin-block: 1.25rem; }
.rc-section h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid #bbb; padding-bottom: .25rem; }
[dir="rtl"] .rc-section h3 { text-transform: none; letter-spacing: 0; }
.rc-section h4 { font-size: .95rem; margin: 1rem 0 .25rem; }
.rc-table { width: 100%; border-collapse: collapse; }
.rc-table th, .rc-table td { padding: .4rem .4rem; border-bottom: 1px solid #ddd; text-align: start; }
.rc-table thead th { font-size: .8rem; color: #555; border-bottom: 1px solid #111; }
.rc-table .r { text-align: end; }
.rc-small { font-size: .85rem; color: #444; margin: .35rem 0; }
.rc-total { display: flex; justify-content: space-between; gap: 1rem; font-size: 1.1rem; border-top: 2px solid #111; padding-top: .5rem; margin-top: .75rem; }
.rc-foot { margin-top: 1.5rem; padding-top: .75rem; border-top: 1px solid #bbb; }
.rc-disclaimer { font-size: .85rem; }

@media (max-width: 520px) {
  .tbl .num, .rc-table .num { white-space: normal; }
  .tbl th, .tbl td { padding-inline: .3rem; }
  .stepper .step-l { font-size: .8rem; }
  .platform-head { flex-direction: column; align-items: stretch; }
  .ratecard { padding: 1.25rem 1rem; }
  .rc-table th, .rc-table td { font-size: .85rem; padding-inline: .25rem; }
}

/* ---------------------------------------------------------------- print */
@page { size: A4; margin: 16mm 15mm; }
@media print {
  html, body { background: #fff !important; }
  body { font-size: 11pt; }
  .no-print, .site-header, .stepper, .site-footer, .notice, .sharebox, .actions { display: none !important; }
  .wrap { max-width: none; padding: 0; }
  main { padding: 0; }
  .ratecard { border: 0; border-radius: 0; padding: 0; margin: 0; font-size: 9.5pt; line-height: 1.45; }
  .rc-head h2 { font-size: 18pt; }
  .rc-head { margin-bottom: .6rem; padding-bottom: .5rem; }
  .rc-meta { margin-bottom: .5rem; }
  .rc-section { margin-block: .75rem; }
  .rc-section h3 { font-size: 9.5pt; margin-bottom: .35rem; }
  .rc-table th, .rc-table td { padding-block: .25rem; }
  .rc-foot { margin-top: .9rem; padding-top: .5rem; }
  .rc-small, .rc-disclaimer { font-size: 8.5pt; }
  .rc-section, .rc-table, .rc-foot, .rc-head { break-inside: avoid; }
  .rc-section h3 { break-after: avoid; }
  a { color: inherit; text-decoration: none; }
}