/*
 * SteadyDevs design "F" — premium dark SaaS base, System-window accents,
 * crimson atmosphere. Dark by default; [data-theme="light"] on <html>
 * switches every token. Pages using this sheet set data-design="f" on
 * <html> so site-nav.js renders the matching header.
 */

/* ---------- Tokens ---------- */
:root {
  color-scheme: dark;
  --bg: #0A0B0F;
  --bg-alt: #0C0D12;
  --surface: #111319;
  --surface-2: #161922;
  --surface-inset: #0D0F14;
  --border: #232733;
  --border-soft: #1C1F28;
  --border-strong: #2E3442;
  --text: #EDEFF4;
  --text-strong: #FFFFFF;
  --muted: #9AA3B2;
  --faint: #7A8292;
  --dim: #8E96A6;
  --text-soft: #C9CFDA;
  --crimson: #CF3A40;          /* fills (white text on top passes AA) */
  --crimson-text: #F2676C;     /* crimson used as text on the background */
  --crimson-soft: rgba(229, 72, 77, 0.10);
  --crimson-line: #4A2328;
  --system: #5CC8FF;
  --system-line: rgba(92, 200, 255, 0.45);
  --system-line-soft: rgba(92, 200, 255, 0.25);
  --system-bg: rgba(11, 20, 32, 0.92);
  --system-glow: 0 0 32px rgba(92, 200, 255, 0.16);
  --system-title-glow: 0 0 10px rgba(92, 200, 255, 0.5);
  --ok: #46A758;
  --warn: #F5A524;
  --info: #5CC8FF;
  --glow-crimson: rgba(229, 72, 77, 0.13);
  --glow-system: rgba(92, 200, 255, 0.08);
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.5);
  --header-bg: rgba(10, 11, 15, 0.82);
  --radius: 14px;
  --radius-sm: 8px;
  --font: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --display: 'Chakra Petch', 'Geist', sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F7F8FA;
  --bg-alt: #EFF1F5;
  --surface: #FFFFFF;
  --surface-2: #FFFFFF;
  --surface-inset: #F3F5F8;
  --border: #DFE3EA;
  --border-soft: #E6E9EF;
  --border-strong: #CBD1DB;
  --text: #11151C;
  --text-strong: #0A0D12;
  --muted: #4F5866;
  --faint: #5F6877;
  --dim: #6A7382;
  --text-soft: #2E3541;
  --crimson: #C9343A;
  --crimson-text: #B42D33;
  --crimson-soft: rgba(201, 52, 58, 0.07);
  --crimson-line: #F0C9CB;
  --system: #0A78B0;
  --system-line: rgba(10, 120, 176, 0.45);
  --system-line-soft: rgba(10, 120, 176, 0.2);
  --system-bg: #F2F9FD;
  --system-glow: 0 1px 2px rgba(10, 120, 176, 0.06), 0 8px 24px rgba(10, 120, 176, 0.08);
  --system-title-glow: none;
  --ok: #1F7A35;
  --warn: #A3560B;
  --info: #0A78B0;
  --glow-crimson: rgba(201, 52, 58, 0.08);
  --glow-system: rgba(10, 120, 176, 0.06);
  --shadow-lg: 0 24px 60px rgba(17, 21, 28, 0.12);
  --header-bg: rgba(247, 248, 250, 0.85);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--text); }
a:hover { color: var(--text-strong); }
:focus-visible { outline: 2px solid var(--system); outline-offset: 3px; }
h1, h2, h3 { color: var(--text-strong); margin: 0; }
p { margin: 0; }
.f-skip { position: absolute; left: -9999px; top: 8px; z-index: 2000; background: var(--surface); padding: 10px 14px; border-radius: var(--radius-sm); }
.f-skip:focus { left: 8px; }

.f-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.f-section { padding: 104px 0; }
.f-section--alt { background: var(--bg-alt); border-top: 1px solid var(--border-soft); }
.f-section--line { border-top: 1px solid var(--border-soft); }
.f-glow-top { background: radial-gradient(ellipse 60% 55% at 70% 0%, var(--glow-crimson), transparent 70%), radial-gradient(ellipse 50% 50% at 20% 10%, var(--glow-system), transparent 70%); }
.f-glow-bottom { background: radial-gradient(ellipse 50% 70% at 50% 100%, var(--glow-crimson), var(--glow-system) 45%, transparent 75%); }

/* ---------- Type ---------- */
.f-eyebrow { font-family: var(--mono); font-size: 13px; letter-spacing: 0.02em; color: var(--crimson-text); margin-bottom: 12px; text-transform: uppercase; }
.f-h1 { font-weight: 600; font-size: clamp(40px, 5.6vw, 68px); line-height: 1.03; letter-spacing: -0.035em; }
.f-h2 { font-weight: 600; font-size: clamp(30px, 3.6vw, 40px); line-height: 1.1; letter-spacing: -0.03em; }
.f-h3 { font-weight: 600; font-size: 19px; letter-spacing: -0.01em; }
.f-dim { color: var(--dim); }
.f-lead { font-size: 19px; color: var(--muted); max-width: 540px; }
.f-sub { color: var(--muted); max-width: 580px; margin-top: 14px; }
.f-muted { color: var(--muted); }
.f-small { font-size: 15px; }
.f-mono { font-family: var(--mono); }

.f-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--muted);
  border: 1px solid var(--border); background: var(--surface);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 24px;
}
.f-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--crimson); }

/* ---------- Buttons ---------- */
.f-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 12px 22px; border-radius: var(--radius-sm);
  font: 500 16px/1.2 var(--font); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background-color .15s, border-color .15s, box-shadow .15s;
}
.f-btn--primary { background: var(--crimson); color: #FFFFFF; }
.f-btn--primary:hover { color: #FFFFFF; background: #B8323A; }
.f-btn--secondary { background: var(--surface-2); border-color: var(--border-strong); color: var(--text); }
.f-btn--secondary:hover { border-color: var(--faint); }
.f-btn--glow { box-shadow: 0 0 30px rgba(229, 72, 77, 0.35); }
:root[data-theme="light"] .f-btn--glow { box-shadow: 0 8px 24px rgba(201, 52, 58, 0.22); }
.f-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Layout helpers ---------- */
.f-hero { padding-top: 104px; padding-bottom: 96px; }
.f-hero__grid { display: flex; flex-wrap: wrap; gap: 64px; align-items: center; }
.f-hero__copy { flex: 1 1 520px; }
.f-hero__copy .f-h1 { margin-bottom: 24px; }
.f-hero__copy .f-lead { margin-bottom: 36px; }
.f-hero__aside { flex: 1 1 380px; }
.f-row { display: flex; flex-wrap: wrap; gap: 20px; }
.f-row > * { flex: 1 1 300px; }
.f-head { margin-bottom: 48px; }

/* ---------- Strip ---------- */
.f-strip { border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.f-strip__inner { display: flex; flex-wrap: wrap; gap: 10px 36px; padding: 20px 0; font-size: 14px; color: var(--faint); }
.f-strip__inner strong { font-weight: 400; color: var(--text); }

/* ---------- Cards ---------- */
.f-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.f-card--accent { background: linear-gradient(180deg, var(--crimson-soft), var(--surface) 60%); border-color: var(--crimson-line); }
.f-card--wide { grid-column: span 2; }
@media (max-width: 640px) { .f-card--wide { grid-column: auto; } }
.f-stat__value { font-size: 44px; font-weight: 600; letter-spacing: -0.03em; color: var(--text-strong); line-height: 1.15; }
.f-stat__label { color: var(--muted); font-size: 15px; margin-top: 6px; }

/* Path (product/service) cards with a media preview */
.f-path {
  display: flex; flex-direction: column; overflow: hidden; text-decoration: none;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color .15s, transform .15s;
}
.f-path:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.f-path__media { padding: 22px; background: var(--surface-inset); border-bottom: 1px solid var(--border-soft); font-size: 13px; min-height: 142px; }
.f-path__body { padding: 24px; display: flex; flex-direction: column; gap: 10px; flex-grow: 1; }
.f-path__kicker { font-size: 13px; color: var(--faint); }
.f-path__title { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; color: var(--text-strong); }
.f-path__desc { font-size: 16px; color: var(--muted); }
.f-path__foot { margin-top: auto; padding-top: 16px; display: flex; justify-content: space-between; font-size: 15px; color: var(--text); }

.f-code { font-family: var(--mono); font-size: 12.5px; line-height: 1.75; overflow-x: auto; }
.f-code > div { white-space: pre; }
.f-code .del { color: #E5484D; }
.f-code .add { color: var(--ok); }
:root[data-theme="light"] .f-code .del { color: #B42D33; }
.f-table-row { display: flex; justify-content: space-between; padding: 5px 0; color: var(--text); }
.f-ok { color: var(--ok); } .f-warn { color: var(--warn); } .f-info { color: var(--info); }
.f-slots { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 4px; font-family: var(--mono); font-size: 11px; color: var(--faint); }
.f-slot { height: 18px; border-radius: 3px; border: 1px solid var(--border); }
.f-slot--booked { background: var(--border-strong); border-color: var(--border-strong); }
.f-slot--pending { background: var(--crimson); border-color: var(--crimson); }

/* Principles */
.f-principles { display: flex; flex-wrap: wrap; gap: 48px; }
.f-principle { flex: 1 1 280px; border-top: 1px solid var(--border-strong); padding-top: 20px; }
.f-principle p { color: var(--muted); font-size: 16px; margin-top: 8px; }

/* ---------- System window (the 20%) ---------- */
.f-sys { position: relative; border: 1px solid var(--system-line); background: var(--system-bg); box-shadow: var(--system-glow); }
.f-sys__c { position: absolute; width: 12px; height: 12px; pointer-events: none; }
.f-sys__c--tl { top: -1px; left: -1px; border-top: 2px solid var(--system); border-left: 2px solid var(--system); }
.f-sys__c--tr { top: -1px; right: -1px; border-top: 2px solid var(--system); border-right: 2px solid var(--system); }
.f-sys__c--bl { bottom: -1px; left: -1px; border-bottom: 2px solid var(--system); border-left: 2px solid var(--system); }
.f-sys__c--br { bottom: -1px; right: -1px; border-bottom: 2px solid var(--system); border-right: 2px solid var(--system); }
.f-sys__head { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--system-line-soft); }
.f-sys__title { font-family: var(--display); font-weight: 700; letter-spacing: 0.22em; font-size: 14px; color: var(--system); text-shadow: var(--system-title-glow); }
.f-sys__tag { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.f-sys__body { padding: 24px 20px; }
.f-sys__body .f-sys__lead { font-size: 19px; font-weight: 500; color: var(--text-strong); margin-bottom: 6px; }
.f-sys__body p { font-size: 15px; color: var(--muted); }
.f-sys__actions { display: flex; gap: 10px; margin-top: 20px; }
.f-sys__btn { flex: 1; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; font-size: 15px; border: 1px solid var(--border-strong); color: var(--muted); }
.f-sys__btn--accept { border-color: var(--system); color: var(--system); font-weight: 500; }
.f-sys__btn:hover { color: var(--text-strong); }

/* System window content helpers */
.f-sys__stat { display: flex; justify-content: space-between; gap: 12px; padding: 20px 20px 6px; }
.f-sys__label { font-size: 12px; letter-spacing: 0.06em; color: var(--faint); text-transform: uppercase; }
.f-sys__value { font-size: 18px; font-weight: 600; color: var(--text-strong); }
.f-sys__level { font-family: var(--display); font-size: 32px; line-height: 1; font-weight: 700; color: var(--system); }
.f-sys__rows { list-style: none; margin: 0; padding: 4px 20px 14px; font-size: 15px; }
.f-sys__rows li { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-top: 1px solid var(--system-line-soft); color: var(--text-soft); }
.f-sys__rows li:first-child { border-top: 0; }
.f-sys__rank { font-family: var(--mono); color: var(--system); }
.f-sys__rank--s { color: var(--crimson-text); }
.f-sys__note { color: var(--ok); white-space: nowrap; }
.f-sys__foot { padding: 14px 20px; border-top: 1px solid var(--system-line-soft); font-size: 15px; color: var(--muted); }
.f-sys__foot b { font-family: var(--mono); font-weight: 400; color: var(--crimson-text); }

/* Pricing card details */
.f-price-card .f-checks { margin: 4px 0; }
.f-price-meta { font-size: 14px; color: var(--faint); }
.f-price-card .f-btn { margin-top: auto; }
.f-ribbon { align-self: flex-start; font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: var(--crimson-text); border: 1px solid var(--crimson-line); background: var(--crimson-soft); padding: 2px 8px; border-radius: 6px; }
.f-note { font-size: 15px; color: var(--muted); }
.f-note a { color: var(--text-strong); }

/* ---------- Team / quote ---------- */
.f-person { display: flex; gap: 18px; align-items: center; margin-top: 24px; }
.f-avatar { width: 64px; height: 64px; border-radius: 16px; border: 1px solid var(--border); background: var(--surface); display: flex; align-items: center; justify-content: center; flex: none; }
.f-avatar .fh__mark { width: 28px; height: 36px; }

/* ---------- CTA ---------- */
.f-cta { padding-top: 120px; padding-bottom: 120px; text-align: center; }
.f-cta .f-h2 { font-size: clamp(36px, 5vw, 56px); letter-spacing: -0.035em; }
.f-cta p { color: var(--muted); margin: 18px auto 34px; max-width: 560px; }
.f-cta .f-actions { justify-content: center; }

/* ---------- Header (rendered by site-nav.js) ---------- */
.fh { position: sticky; top: 0; z-index: 1000; background: var(--header-bg); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid var(--border-soft); }
.fh__inner { max-width: 1200px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.fh__logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; text-decoration: none; color: var(--text-strong); min-height: 44px; }
.fh__mark { width: 21px; height: 27px; flex: none; }
.fh__mark rect { stroke-width: 1.5; }
/* Logo block ramp: lifted on dark (as in avatar-steadydev-dark.svg), original on light (SteadyDevsLogo.svg) */
.sd-b1 { fill: #BFDBFE; stroke: #DBEAFE; } .sd-b2 { fill: #93C5FD; stroke: #BFDBFE; }
.sd-b3 { fill: #60A5FA; stroke: #93C5FD; } .sd-b4 { fill: #3B82F6; stroke: #60A5FA; }
:root[data-theme="light"] .sd-b1 { fill: #93C5FD; stroke: #60A5FA; } :root[data-theme="light"] .sd-b2 { fill: #60A5FA; stroke: #3B82F6; }
:root[data-theme="light"] .sd-b3 { fill: #3B82F6; stroke: #2563EB; } :root[data-theme="light"] .sd-b4 { fill: #1E40AF; stroke: #1E3A8A; }
.fh__nav { display: flex; align-items: center; gap: 24px; font-size: 15px; }
.fh__nav a { color: var(--muted); text-decoration: none; }
.fh__nav a:hover, .fh__nav a[aria-current="page"] { color: var(--text-strong); }
.fh__tools { display: flex; align-items: center; gap: 8px; }
.fh__icon { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); border: 1px solid var(--border); background: transparent; color: var(--muted); cursor: pointer; text-decoration: none; }
.fh__icon:hover { color: var(--text-strong); border-color: var(--border-strong); }
.fh__icon svg { width: 18px; height: 18px; }
.fh__cta { min-height: 40px; padding: 9px 16px; font-size: 15px; }
.fh__menu { display: none; }
.fh__sun { display: none; }
:root[data-theme="light"] .fh__sun { display: block; }
:root[data-theme="light"] .fh__moon { display: none; }

@media (max-width: 960px) {
  .fh__menu { display: inline-flex; }
  .fh__nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border-soft); padding: 8px 24px 20px;
  }
  .fh.is-open .fh__nav { display: flex; }
  .fh__nav a { padding: 14px 0; border-bottom: 1px solid var(--border-soft); font-size: 16px; }
  .fh__cta-desktop { display: none; }
}
@media (min-width: 961px) { .fh__cta-mobile { display: none; } }
.fh__cta-mobile { margin-top: 16px; }
.fh .fh__cta-mobile, .fh .fh__cta-mobile:hover { color: #FFFFFF; border-bottom: 0; }

/* ---------- Footer ---------- */
.ff { border-top: 1px solid var(--border-soft); padding: 56px 0 32px; font-size: 15px; }
.ff__grid { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
.ff__brand { flex: 1 1 280px; max-width: 360px; }
.ff__brand p { color: var(--muted); margin-top: 12px; }
.ff__col { flex: 0 1 180px; }
.ff__col h2 { font-size: 13px; font-weight: 500; color: var(--faint); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; font-family: var(--mono); }
.ff__col ul { list-style: none; margin: 0; padding: 0; }
.ff__col li { margin-bottom: 10px; }
.ff__col a { color: var(--muted); text-decoration: none; }
.ff__col a:hover { color: var(--text-strong); }
.ff__base { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border-soft); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; color: var(--faint); font-size: 14px; }

/* =====================================================================
   Shared components for inner pages
   ===================================================================== */

/* Generic grid: cards wrap from 3/2/1 columns automatically */
.f-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.f-grid--2 { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }
@media (max-width: 440px) { .f-grid--2 { grid-template-columns: 1fr; } }

/* Two-column layout: main content + sticky aside */
.f-split { display: flex; flex-wrap: wrap; gap: 56px; align-items: flex-start; }
.f-split__main { flex: 1 1 560px; min-width: 0; }
.f-split__aside { flex: 0 1 320px; position: sticky; top: 96px; }
@media (max-width: 960px) { .f-split__aside { position: static; flex-basis: 100%; } }

/* Inner page header */
.f-page-hero { padding-top: 88px; padding-bottom: 64px; }
.f-page-hero .f-h1 { font-size: clamp(36px, 4.6vw, 56px); margin-bottom: 20px; max-width: 860px; }
.f-page-hero .f-lead { max-width: 640px; }
.f-page-hero .f-actions { margin-top: 32px; }
.f-breadcrumb { font-size: 14px; color: var(--faint); margin-bottom: 20px; }
.f-breadcrumb a { color: var(--muted); text-decoration: none; }
.f-breadcrumb a:hover { color: var(--text-strong); }
.f-breadcrumb span[aria-hidden] { margin: 0 8px; }
.f-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--faint); margin-top: 20px; }

/* Tags and badges */
.f-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.f-tag { display: inline-flex; align-items: center; font-family: var(--mono); font-size: 12px; color: var(--muted); border: 1px solid var(--border); background: var(--surface-inset); padding: 3px 8px; border-radius: 6px; text-decoration: none; }
a.f-tag:hover { color: var(--text-strong); border-color: var(--border-strong); }
.f-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); }
.f-badge--crimson { color: var(--crimson-text); border-color: var(--crimson-line); background: var(--crimson-soft); }
.f-badge--ok { color: var(--ok); border-color: currentColor; }

/* Card variants */
.f-card--link { text-decoration: none; display: flex; flex-direction: column; gap: 10px; transition: border-color .15s, transform .15s; }
.f-card--link:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.f-card__title { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; color: var(--text-strong); }
.f-card__text { color: var(--muted); font-size: 16px; }
.f-card__foot { margin-top: auto; padding-top: 14px; font-size: 15px; color: var(--text); }
.f-card--compact { padding: 22px; }

/* Before → after metric */
.f-kpi { display: flex; flex-wrap: wrap; gap: 32px; padding-top: 18px; border-top: 1px solid var(--border-soft); }
.f-kpi__label { font-size: 13px; color: var(--faint); }
.f-kpi__value { font-size: 26px; font-weight: 600; letter-spacing: -0.02em; color: var(--text-strong); }

/* Fact list (label / value rows) */
.f-dl { margin: 0; }
.f-dl > div { padding: 12px 0; border-bottom: 1px solid var(--border-soft); }
.f-dl > div:last-child { border-bottom: 0; }
.f-dl dt { font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--faint); }
.f-dl dd { margin: 4px 0 0; color: var(--text); font-size: 15px; }
.f-prose a.f-btn { text-decoration: none; color: var(--text); }
.f-prose a.f-btn--primary { color: #FFFFFF; }

/* Check list */
.f-checks { list-style: none; margin: 0; padding: 0; }
.f-checks li { position: relative; padding: 6px 0 6px 26px; color: var(--text-soft); }
.f-checks li::before { content: ""; position: absolute; left: 2px; top: 13px; width: 10px; height: 6px; border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg); }

/* Numbered steps */
.f-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0; border-top: 1px solid var(--border-strong); }
.f-steps li { padding: 20px 20px 20px 0; }
.f-steps__n { font-family: var(--mono); font-size: 13px; color: var(--crimson-text); }
.f-steps__t { font-weight: 600; margin: 6px 0 4px; color: var(--text-strong); }
.f-steps__d { font-size: 15px; color: var(--muted); }

/* Pricing card */
.f-price-card { display: flex; flex-direction: column; gap: 14px; }
.f-price-card--featured { border-color: var(--crimson-line); background: linear-gradient(180deg, var(--crimson-soft), var(--surface) 55%); }
.f-price { font-size: 40px; font-weight: 600; letter-spacing: -0.03em; color: var(--text-strong); line-height: 1.1; }
.f-price small { font-size: 16px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.f-price--range { font-size: clamp(26px, 2.4vw, 30px); letter-spacing: -0.02em; }

/* Callouts (tips, warnings, notes) */
.f-callout { border: 1px solid var(--border); background: var(--surface); border-radius: 12px; padding: 18px 20px; margin: 28px 0; color: var(--text-soft); }
.f-callout strong:first-child { color: var(--text-strong); }
.f-callout--tip { border-color: var(--system-line-soft); background: var(--system-bg); }
.f-callout--warn { border-color: var(--crimson-line); background: var(--crimson-soft); }
.f-callout__label { display: block; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 6px; color: var(--faint); }
.f-callout--tip .f-callout__label { color: var(--system); }
.f-callout--warn .f-callout__label { color: var(--crimson-text); }

/* FAQ (native <details>) */
.f-faq { border-top: 1px solid var(--border-soft); }
.f-faq details { border-bottom: 1px solid var(--border-soft); }
.f-faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 20px; padding: 20px 0; font-weight: 500; color: var(--text-strong); }
.f-faq summary::-webkit-details-marker { display: none; }
.f-faq summary::after { content: "+"; font-family: var(--mono); color: var(--faint); flex: none; }
.f-faq details[open] summary::after { content: "−"; }
.f-faq details > div { padding: 0 0 20px; color: var(--muted); max-width: 760px; }

/* Filter tabs (buttons with aria-pressed) */
.f-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.f-tab { min-height: 40px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border); background: transparent; color: var(--muted); font: 500 14px/1.2 var(--font); cursor: pointer; }
.f-tab:hover { color: var(--text-strong); border-color: var(--border-strong); }
.f-tab[aria-pressed="true"], .f-tab.is-active { background: var(--text-strong); border-color: var(--text-strong); color: var(--bg); }

/* Tables */
.f-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; margin: 28px 0; }
.f-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.f-table th, .f-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.f-table th { font-weight: 500; color: var(--faint); background: var(--surface-inset); font-size: 14px; }
.f-table tr:last-child td { border-bottom: 0; }

/* Forms */
.f-form { display: grid; gap: 18px; }
.f-form__row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.f-field { display: grid; gap: 6px; }
.f-field label { font-size: 14px; font-weight: 500; color: var(--text); }
.f-field .f-hint { font-size: 13px; color: var(--faint); }
.f-input, .f-form input[type="text"], .f-form input[type="email"], .f-form input[type="tel"], .f-form input[type="number"], .f-form input[type="url"], .f-form input[type="date"], .f-form select, .f-form textarea {
  width: 100%; min-height: 46px; padding: 11px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface-inset); color: var(--text);
  font: 400 16px/1.4 var(--font);
}
.f-form textarea { min-height: 140px; resize: vertical; }
.f-form input:focus, .f-form select:focus, .f-form textarea:focus, .f-input:focus { outline: 2px solid var(--system); outline-offset: 1px; border-color: transparent; }
.f-form ::placeholder { color: var(--faint); }

/* Long-form text (blog posts, case studies, terms) */
.f-prose { max-width: 760px; color: var(--text-soft); font-size: 18px; line-height: 1.75; }
.f-prose > * + * { margin-top: 1.1em; }
.f-prose h2 { font-size: 28px; line-height: 1.2; letter-spacing: -0.02em; font-weight: 600; margin-top: 2.2em; color: var(--text-strong); }
.f-prose h3 { font-size: 21px; line-height: 1.3; letter-spacing: -0.01em; font-weight: 600; margin-top: 1.8em; color: var(--text-strong); }
.f-prose h2 + *, .f-prose h3 + * { margin-top: 0.6em; }
.f-prose a { color: var(--text-strong); text-decoration: underline; text-decoration-color: var(--crimson-text); text-underline-offset: 3px; }
.f-prose strong { color: var(--text-strong); font-weight: 600; }
.f-prose ul, .f-prose ol { padding-left: 1.3em; }
.f-prose li + li { margin-top: 0.4em; }
.f-prose li::marker { color: var(--faint); }
.f-prose blockquote { margin-left: 0; margin-right: 0; padding: 4px 0 4px 20px; border-left: 2px solid var(--border-strong); color: var(--muted); font-style: italic; }
.f-prose code { font-family: var(--mono); font-size: 0.88em; background: var(--surface-inset); border: 1px solid var(--border-soft); padding: 1px 5px; border-radius: 5px; }
.f-prose pre { font-family: var(--mono); font-size: 14px; line-height: 1.6; background: var(--surface-inset); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; overflow-x: auto; }
.f-prose pre code { background: none; border: 0; padding: 0; font-size: inherit; }
.f-prose img, .f-prose figure img { border-radius: 12px; border: 1px solid var(--border); }
.f-prose figcaption { font-size: 14px; color: var(--faint); margin-top: 8px; text-align: center; }
.f-prose hr { border: 0; border-top: 1px solid var(--border-soft); margin: 2.5em 0; }
.f-prose table { width: 100%; border-collapse: collapse; font-size: 15px; display: block; overflow-x: auto; }
.f-prose th, .f-prose td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border-soft); }
.f-prose th { color: var(--faint); font-weight: 500; }

/* Table of contents (blog) */
.f-toc { font-size: 14px; }
.f-toc__title { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--faint); margin-bottom: 12px; }
.f-toc ol, .f-toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--border-soft); }
.f-toc a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 1px solid transparent; color: var(--muted); text-decoration: none; }
.f-toc a:hover, .f-toc a.is-active { color: var(--text-strong); border-left-color: var(--crimson-text); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  body { font-size: 16px; }
  .f-section { padding: 72px 0; }
  .f-hero { padding-top: 64px; padding-bottom: 72px; }
  .f-hero__grid { gap: 40px; }
  .f-cta { padding-top: 88px; padding-bottom: 88px; }
  .f-head { margin-bottom: 32px; }
  .f-stat__value { font-size: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .f-path, .f-btn { transition: none; }
  .f-path:hover { transform: none; }
}