/* Brio wireframes - shared grey stylesheet (Stage 04).
   A wireframe screen is ONE responsive page that looks like the real product, in grey:
   no color, type, brand, icon, or shadow. Not a device mockup, not two frames. It fills
   the page and reflows from 360 to desktop with real viewport media queries.
   Inherits the IA :root tokens and the roadmap sidebar (used only by the index hub).
   Stages 06 to 08 grow COLORED copies in ui-visual/, never this file. No em dash. */

:root {
  /* IA tokens (portfolio shell + roadmap sidebar chrome, used only by index) */
  --bg: #0d0f12; --surface: #13161b; --surface-2: #1a1e25; --surface-3: #21262f;
  --border: #252a33; --border-subtle: #1e232c; --text: #e8eaf0; --text-muted: #8b909c; --text-faint: #555b68;
  --accent: #4f9cf9; --accent-dim: #1d3a5f;
  --radius: 8px; --radius-lg: 12px; --radius-sm: 4px;

  /* Greyscale wireframe scale (the only values allowed on a screen body) */
  --wf-ink: #0a0a0a; --wf-panel: #0c0c0c; --wf-panel-2: #131313;
  --wf-line: #2c2c2c; --wf-line-2: #1f1f1f; --wf-edge: #3a3a3a; --wf-stroke: #7a7a7a;
  --wf-solid: #e6e6e6; --wf-solid-ink: #111;
  --wf-t-hi: #ffffff; --wf-t-2: #e6e6e6; --wf-t: #cfcfcf; --wf-t-mid: #9a9a9a; --wf-t-lo: #6a6a6a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--wf-ink); color: var(--wf-t-2); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
body.has-rail { background: var(--bg); color: var(--text); }

/* ===== Roadmap sidebar (inherited IA portfolio chrome, index hub only) ===== */
.sidebar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(13, 15, 18, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.sidebar-header { display: flex; align-items: center; justify-content: space-between; padding: 0 16px; height: 52px; }
.sidebar-brand { font-size: 15px; font-weight: 700; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; }
.sidebar-toggle { display: flex; flex-direction: column; justify-content: center; gap: 4px; width: 36px; height: 36px; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; padding: 9px 8px; }
.sidebar-toggle span { display: block; height: 2px; width: 100%; background: var(--text-muted); border-radius: 1px; }
.sidebar-body { display: none; padding: 8px 0 16px; border-top: 1px solid var(--border); overflow-y: auto; max-height: calc(100vh - 52px); }
.sidebar-body.open { display: block; }
.nav-group { padding: 0 8px; }
.nav-group-label { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-faint); padding: 14px 12px 6px; }
.nav-group-label.active-section { color: var(--accent); }
.nav-item { display: flex; align-items: center; gap: 6px; padding: 7px 12px; font-size: 13px; color: var(--text-muted); text-decoration: none; border-radius: var(--radius-sm); transition: color 0.15s, background 0.15s; }
a.nav-item:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-item-muted { color: var(--text-faint); opacity: 0.5; cursor: default; font-size: 12px; }
.nav-item-next { color: var(--text-muted); cursor: default; font-size: 12px; }
.nav-subhead { font-size: 11px; font-weight: 700; letter-spacing: 0.03em; color: var(--text-muted); padding: 12px 12px 4px 12px; }
.nav-sub-link { display: block; padding: 5px 12px 5px 24px; font-size: 12px; color: var(--text-muted); text-decoration: none; border-radius: var(--radius-sm); transition: color 0.15s, background 0.15s; }
a.nav-sub-link:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-sub-link.nav-link-active { color: var(--accent); font-weight: 600; }
.nav-soon { font-size: 9px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 2px 6px; border-radius: 100px; border: 1px solid var(--border); color: var(--text-faint); margin-left: auto; }
.nav-next { font-size: 9px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 2px 6px; border-radius: 100px; border: 1px solid var(--accent-dim); background: var(--accent-dim); color: var(--accent); margin-left: auto; }
@media (min-width: 900px) {
  .sidebar { left: 0; right: auto; top: 0; bottom: 0; width: 220px; border-bottom: none; border-right: 1px solid var(--border); overflow-y: auto; }
  .sidebar-header { height: 64px; padding: 0 20px; }
  .sidebar-toggle { display: none; }
  .sidebar-body { display: block; max-height: none; border-top: none; padding: 4px 0 24px; overflow-y: visible; }
}

/* ===== Main layout =====
   Screen pages have no rail: the screen is the page, full width, under the sticky
   strip. index.html keeps the roadmap rail as the hub bridge (body.has-rail). */
main { padding: 0 0 48px; }
body.has-rail main { padding-top: 52px; max-width: 1080px; margin: 0 auto; padding-left: 16px; padding-right: 16px; padding-bottom: 64px; }
@media (min-width: 900px) { body.has-rail main { padding-top: 0; margin-left: 220px; margin-right: 0; max-width: none; padding-left: 40px; padding-right: 40px; } }

/* ===== Prototype strip (the only prototype chrome): node, state, states, back ===== */
.wf-bar { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 8px 12px; flex-wrap: wrap; padding: 9px 16px; background: var(--wf-panel-2); color: var(--wf-t); border-bottom: 1px solid var(--wf-edge); }
@media (min-width: 720px) { .wf-bar { padding: 9px 24px; } }
.wf-bar .node { font-family: ui-monospace, Menlo, monospace; font-size: 12px; font-weight: 700; color: var(--wf-t-hi); }
.wf-bar .name { font-size: 13px; color: var(--wf-t); font-weight: 600; }
.wf-bar .state { font-size: 11px; color: var(--wf-t-mid); }
.wf-bar .state::before { content: "- "; color: var(--wf-t-lo); }
.wf-bar .states { display: flex; gap: 6px; flex-wrap: wrap; }
.wf-state-chip { font-size: 10.5px; color: var(--wf-t-mid); text-decoration: none; border: 1px solid var(--wf-edge); border-radius: 100px; padding: 2px 9px; white-space: nowrap; }
a.wf-state-chip:hover { color: var(--wf-t-hi); border-color: var(--wf-stroke); text-decoration: none; }
.wf-state-chip.on { color: var(--wf-solid-ink); background: var(--wf-solid); border-color: var(--wf-solid); font-weight: 700; }
.wf-back { margin-left: auto; font-size: 11px; font-weight: 700; color: var(--wf-solid-ink); background: var(--wf-solid); border: 1px solid var(--wf-solid); border-radius: 100px; padding: 4px 13px; text-decoration: none; white-space: nowrap; }
.wf-back:hover { text-decoration: none; opacity: 0.9; }

/* ===== The product screen (one responsive page, no frames) =====
   Full-bleed horizontal separators (the top-bar and footer lines run to the page
   edge), while the row content is centered in a max-width inner wrap. */
.wf-screen { width: 100%; color: var(--wf-t-2); }

/* product top bar: brand + job tabs + settings (tabs move to a bottom bar on mobile) */
.wf-appbar { border-bottom: 1px solid var(--wf-line); }
.wf-appbar-inner { max-width: 1140px; margin: 0 auto; display: flex; align-items: center; gap: 22px; padding: 15px 20px; }
.wf-brand { font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--wf-t-hi); font-size: 14px; }
.wf-tabs { display: flex; gap: 22px; }
.wf-appbar-inner .sp { margin-left: auto; }
.wf-tab { font-size: 13px; color: var(--wf-t-mid); text-decoration: none; padding-bottom: 3px; }
a.wf-tab:hover { color: var(--wf-t-hi); text-decoration: none; }
.wf-tab.on { color: var(--wf-t-hi); border-bottom: 2px solid var(--wf-t-hi); }
.wf-settings { font-size: 13px; color: var(--wf-t-mid); text-decoration: none; }
a.wf-settings:hover { color: var(--wf-t-hi); text-decoration: none; }

/* product content and its headings */
.wf-content { max-width: 1140px; margin: 0 auto; padding: 26px 20px 36px; }
.wf-narrow { max-width: 460px; margin: 0 auto; }        /* focused wizard / auth column */
.wf-step { font-size: 12px; color: var(--wf-t-mid); font-family: ui-monospace, Menlo, monospace; }
.wf-screen h1 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; color: var(--wf-t-hi); line-height: 1.15; letter-spacing: -0.01em; margin-bottom: 4px; }
.wf-screen h2 { font-size: 15px; font-weight: 700; color: var(--wf-t-2); margin: 0 0 10px; }
.wf-eyebrow { font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--wf-t-lo); margin-bottom: 6px; }
.wf-lead { color: var(--wf-t-mid); font-size: 14px; max-width: 60ch; }
/* plain text links inside content stay greyscale (buttons keep their own style) */
.wf-content a:not(.wf-btn) { color: var(--wf-t); }
.wf-content a:not(.wf-btn):hover { color: var(--wf-t-hi); }

/* responsive content grid: main column + side panel */
.wf-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: start; margin-top: 22px; }
@media (max-width: 720px) { .wf-grid { grid-template-columns: 1fr; gap: 18px; } }

/* generic zone card */
.wf-card { border: 1px solid var(--wf-line); border-radius: var(--radius-lg); padding: 18px; background: var(--wf-panel-2); margin-bottom: 16px; }
.wf-card:last-child { margin-bottom: 0; }
.wf-card-h { font-size: 12px; font-weight: 700; color: var(--wf-t); margin-bottom: 12px; }

/* product footer (full-width separator, centered content) */
.wf-appfoot { border-top: 1px solid var(--wf-line); }
.wf-appfoot-inner { max-width: 1140px; margin: 0 auto; display: flex; gap: 18px; flex-wrap: wrap; padding: 20px; font-size: 12px; }
.wf-appfoot a { color: var(--wf-t-lo); text-decoration: none; }
.wf-appfoot a:hover { color: var(--wf-t-mid); text-decoration: underline; }

/* mobile bottom tab bar: only on narrow viewports (link color set in the base rule
   so the hidden links stay greyscale on desktop, not the default link blue) */
.wf-tabbar { display: none; }
.wf-tabbar a { flex: 1; text-align: center; padding: 11px 4px; font-size: 11px; color: var(--wf-t-mid); text-decoration: none; }
.wf-tabbar a.on { color: var(--wf-t-hi); }
@media (max-width: 720px) {
  .wf-appbar .wf-tabs { display: none; }
  .wf-tabbar { display: flex; position: sticky; bottom: 0; background: var(--wf-panel-2); border-top: 1px solid var(--wf-line); }
}

/* ===== Public marketing shell (nav links + CTA + columned footer) ===== */
.wf-navlinks { display: flex; gap: 20px; }
.wf-navlink { font-size: 13px; color: var(--wf-t-mid); text-decoration: none; }
.wf-navlink:hover { color: var(--wf-t-hi); text-decoration: none; }
@media (max-width: 640px) { .wf-navlinks { display: none; } }
.wf-appbar-inner .wf-btn { padding: 7px 14px; }
.wf-pubfoot { border-top: 1px solid var(--wf-line); margin-top: 20px; }
.wf-pubfoot-inner { max-width: 1140px; margin: 0 auto; padding: 30px 20px 40px; }
.wf-pubfoot .trust { font-size: 13px; color: var(--wf-t-mid); margin-bottom: 22px; padding-bottom: 18px; border-bottom: 1px solid var(--wf-line-2); }
.wf-foot-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 720px) { .wf-foot-cols { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; } }
.wf-foot-col h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--wf-t-lo); margin-bottom: 12px; }
.wf-foot-col a { display: block; font-size: 13px; color: var(--wf-t-mid); text-decoration: none; margin-bottom: 8px; }
.wf-foot-col a:hover { color: var(--wf-t-hi); }

/* ===== Marketing content helpers ===== */
.wf-mkt section { margin-bottom: 46px; }
.wf-mkt section:last-child { margin-bottom: 0; }
.wf-mkt h2 { font-size: clamp(18px, 2.4vw, 24px); margin-bottom: 16px; }
.wf-hero { padding: 12px 0 4px; }
.wf-hero h1 { font-size: clamp(28px, 5vw, 46px); max-width: 18ch; }
.wf-hero .wf-lead { font-size: 16px; max-width: 62ch; margin-top: 12px; }
.wf-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 720px) { .wf-grid3 { grid-template-columns: 1fr; } }
.wf-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.wf-cta-final { text-align: center; padding: 8px 0; }

/* ===== Controls (real <button> / <a role=button>) ===== */
.wf-btn { display: inline-block; border: 1px solid var(--wf-stroke); border-radius: 6px; padding: 9px 16px; font-size: 13px; color: var(--wf-t-2); background: none; cursor: pointer; text-decoration: none; font-family: inherit; }
a.wf-btn:hover, button.wf-btn:hover { color: var(--wf-t-hi); border-color: var(--wf-t); text-decoration: none; }
.wf-btn.solid { background: var(--wf-solid); color: var(--wf-solid-ink); border-color: var(--wf-solid); font-weight: 600; }
.wf-btn.solid:hover { color: var(--wf-solid-ink); }
.wf-btn.block { display: block; width: 100%; text-align: center; }
.wf-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.wf-btns { display: flex; gap: 10px; flex-wrap: wrap; }

/* ===== Form primitives (real <label> + <input>) ===== */
.wf-field { display: block; margin-bottom: 14px; }
.wf-field > .k { display: block; font-size: 12px; color: var(--wf-t-mid); margin-bottom: 6px; }
.wf-input { display: block; width: 100%; background: var(--wf-ink); border: 1px solid var(--wf-edge); border-radius: 6px; padding: 10px 12px; color: var(--wf-t-2); font-size: 14px; font-family: inherit; }
.wf-input::placeholder { color: var(--wf-t-lo); }
.wf-input:focus { outline: none; border-color: var(--wf-stroke); }
.wf-radio { display: flex; align-items: center; gap: 8px; border: 1px solid var(--wf-edge); border-radius: 8px; padding: 12px 14px; margin-bottom: 8px; color: var(--wf-t); font-size: 14px; cursor: pointer; }
.wf-radio.on { border-color: var(--wf-stroke); color: var(--wf-t-hi); }
input[type="radio"], input[type="checkbox"] { accent-color: var(--wf-stroke); }
.wf-err { font-size: 12px; color: var(--wf-t-2); border-left: 2px solid var(--wf-stroke); padding-left: 9px; margin-top: 6px; }
.wf-micro { font-size: 12px; color: var(--wf-t-lo); }

/* ===== Pulse card (the aha, E1) ===== */
.wf-pulse { border: 1px solid var(--wf-stroke); border-radius: var(--radius-lg); padding: 22px; background: var(--wf-panel-2); }
.wf-pulse .read { font-size: clamp(28px, 4vw, 38px); font-weight: 800; color: var(--wf-t-hi); line-height: 1.05; }
.wf-pulse .interp { color: var(--wf-t); font-size: 14px; margin: 8px 0 18px; max-width: 44ch; }
.wf-pulse .act-lbl { font-size: 10px; color: var(--wf-t-lo); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }

/* ===== Trend spark + metric ===== */
.wf-spark { display: flex; align-items: flex-end; gap: 5px; height: 52px; margin-bottom: 10px; }
.wf-spark .bar { width: 12px; background: var(--wf-edge); border-radius: 2px 2px 0 0; }
.wf-spark .bar.hi { background: var(--wf-t); }
.wf-metric { color: var(--wf-t-hi); font-size: 15px; font-weight: 700; }
.wf-metric span { color: var(--wf-t-mid); font-weight: 400; font-size: 13px; }
.wf-strip2 { font-size: 12px; color: var(--wf-t); padding: 12px 14px; border: 1px dashed var(--wf-stroke); border-radius: 8px; }

/* ===== Alert banner (DX1) ===== */
.wf-alert { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border: 1px solid var(--wf-stroke); border-radius: var(--radius-lg); background: var(--wf-panel-2); color: var(--wf-t); font-size: 13px; margin-bottom: 18px; }
.wf-alert .tag { font-size: 9px; border: 1px solid var(--wf-stroke); border-radius: 3px; padding: 1px 6px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--wf-t); white-space: nowrap; }
.wf-alert .sp { margin-left: auto; }

/* ===== State placeholders (empty / error) and skeletons (loading) ===== */
.wf-state { border: 1px dashed var(--wf-stroke); border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; color: var(--wf-t); }
.wf-state .n { color: var(--wf-t-hi); font-weight: 700; font-size: 16px; margin-bottom: 6px; }
.wf-state .sub { color: var(--wf-t-mid); font-size: 13px; margin: 6px auto 14px; max-width: 42ch; }
.wf-skel { background: var(--wf-line); border-radius: 4px; height: 14px; margin: 8px 0; }
.wf-skel.w70 { width: 70%; } .wf-skel.w50 { width: 50%; } .wf-skel.w40 { width: 40%; }
.wf-skel.tall { height: 52px; }

/* ===== List / rows (roster, library, invites) ===== */
.wf-list { border: 1px solid var(--wf-line); border-radius: var(--radius-lg); overflow: hidden; }
.wf-list-row { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border-bottom: 1px solid var(--wf-line-2); }
.wf-list-row:last-child { border-bottom: none; }
.wf-list-row .who { font-size: 14px; color: var(--wf-t-2); flex: 1; min-width: 0; }
.wf-list-row .who small { display: block; color: var(--wf-t-lo); font-size: 12px; }
.wf-status { font-size: 11px; color: var(--wf-t-mid); border: 1px solid var(--wf-edge); border-radius: 100px; padding: 2px 10px; white-space: nowrap; }
.wf-status.on { color: var(--wf-t-hi); border-color: var(--wf-stroke); }
.wf-rowlink { font-size: 12px; color: var(--wf-t); text-decoration: none; white-space: nowrap; }
.wf-rowlink:hover { color: var(--wf-t-hi); text-decoration: underline; }

/* ===== Copy field (join link + copy button) ===== */
.wf-copy { display: flex; gap: 8px; }
.wf-copy .wf-input { flex: 1; min-width: 0; }

/* ===== Dialog (0.5 modal shell: overlay + panel) ===== */
.wf-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.62); display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 60; }
.wf-dialog { background: var(--wf-panel-2); border: 1px solid var(--wf-stroke); border-radius: var(--radius-lg); max-width: 440px; width: 100%; padding: 22px; color: var(--wf-t-2); }
.wf-dialog h2 { margin-bottom: 6px; }
.wf-dialog .wf-btns { margin-top: 18px; }

/* ===== Program card (0.4 canonical element) ===== */
.wf-progcard { border: 1px solid var(--wf-stroke); border-radius: var(--radius-lg); padding: 18px; background: var(--wf-panel-2); }
.wf-progcard .cat { font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--wf-t-lo); margin-bottom: 6px; }
.wf-progcard .title { font-size: 18px; font-weight: 700; color: var(--wf-t-hi); margin-bottom: 6px; }
.wf-progcard .meta { font-size: 12px; color: var(--wf-t-mid); margin-bottom: 10px; }
.wf-progcard .desc { font-size: 13px; color: var(--wf-t); }
.wf-tag { display: inline-block; font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--wf-t-2); border: 1px solid var(--wf-stroke); border-radius: 100px; padding: 2px 9px; }

/* ===== Media / icon / avatar / logo placeholders (grey wireframe markers) =====
   Grey only. These mark WHERE a photo, product screenshot, icon or avatar lands;
   Concept (stage 06) fills them with real imagery on the ui-visual copies, never
   here. The diagonal cross and bordered slot are the universal wireframe tell for
   "an asset goes here", so the composition reads without any real image. */
.wf-media { position: relative; display: flex; align-items: center; justify-content: center; min-height: 140px;
  border: 1px solid var(--wf-edge); border-radius: var(--radius-lg); background-color: var(--wf-panel-2);
  background-image:
    linear-gradient(to top right, transparent calc(50% - 0.5px), var(--wf-line) calc(50% - 0.5px), var(--wf-line) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(to bottom right, transparent calc(50% - 0.5px), var(--wf-line) calc(50% - 0.5px), var(--wf-line) calc(50% + 0.5px), transparent calc(50% + 0.5px)); }
.wf-media .lbl { position: relative; background: var(--wf-panel); border: 1px solid var(--wf-line); border-radius: 100px; padding: 4px 13px; font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--wf-t-mid); }
.wf-media.shot { min-height: 260px; }
.wf-media.tall { min-height: 340px; }

/* icon slot: a bordered square holding a smaller shape = "a Concept icon goes here" */
.wf-ico { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; flex: none; border: 1px solid var(--wf-edge); border-radius: 10px; background: var(--wf-panel); }
.wf-ico::before { content: ""; width: 16px; height: 16px; border: 1px solid var(--wf-stroke); border-radius: 3px; }
.wf-ico.round { border-radius: 100px; }
.wf-ico.sm { width: 30px; height: 30px; border-radius: 8px; }
.wf-ico.sm::before { width: 12px; height: 12px; }

/* avatar placeholder (testimonials) */
.wf-avatar { width: 46px; height: 46px; flex: none; border-radius: 100px; border: 1px solid var(--wf-edge); background-color: var(--wf-panel-2);
  background-image:
    linear-gradient(to top right, transparent calc(50% - 0.5px), var(--wf-line) calc(50% - 0.5px), var(--wf-line) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(to bottom right, transparent calc(50% - 0.5px), var(--wf-line) calc(50% - 0.5px), var(--wf-line) calc(50% + 0.5px), transparent calc(50% + 0.5px)); }

/* logo strip (social proof) */
.wf-logos { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.wf-logo { display: flex; align-items: center; justify-content: center; width: 104px; height: 34px; border: 1px solid var(--wf-line); border-radius: 6px; background: var(--wf-panel-2); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--wf-t-lo); }

/* two-column hero (copy + visual) and a 4-up card grid */
.wf-hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 34px; align-items: center; }
@media (max-width: 760px) { .wf-hero-grid { grid-template-columns: 1fr; gap: 22px; } }
.wf-grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 720px) { .wf-grid4 { grid-template-columns: repeat(2, 1fr); } }

/* testimonial */
.wf-quote { border: 1px solid var(--wf-line); border-radius: var(--radius-lg); padding: 24px; background: var(--wf-panel-2); }
.wf-quote-t { font-size: clamp(16px, 2vw, 20px); color: var(--wf-t-2); line-height: 1.5; max-width: 54ch; }
.wf-quote-by { display: flex; align-items: center; gap: 12px; margin-top: 18px; }

/* split auth: the focused form beside a brand panel; the panel hides on mobile
   so the auth screen stays a single fast column, exactly as before. */
.wf-auth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; max-width: 960px; margin: 0 auto; }
.wf-auth-brand { display: flex; flex-direction: column; gap: 16px; }
.wf-auth-proof { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--wf-t); }
@media (max-width: 760px) { .wf-auth-grid { grid-template-columns: 1fr; } .wf-auth-brand { display: none; } }