/* ============================================================
   FRAME — proprietary visual system (site-wide primitives)
   A restrained editorial-diagnostic language: framing, crop
   marks, measurement lines, coordinates, case numbering, and
   annotation. No HUD glow, no glassmorphism. Uses the brand
   tokens defined per page (--ink, --bronze, --seafog, …).
   ============================================================ */

:root{
  --fx-line: rgba(22,22,28,.14);      /* hairline on light */
  --fx-line-d: rgba(255,255,255,.16); /* hairline on dark  */
  --fx-mono: 'Jost','Avenir Next',system-ui,sans-serif;
}

/* --- chapter header: index + title, editorial rhythm ------- */
.fx-chapter{display:flex;align-items:baseline;gap:18px;margin-bottom:34px}
.fx-chapter .fx-ix{font-family:var(--fx-mono);font-size:12px;letter-spacing:.28em;color:var(--bronze);font-weight:500;white-space:nowrap}
.fx-chapter .fx-ix small{color:var(--ink-soft);opacity:.6}
.fx-chapter .fx-line{flex:1;height:1px;background:var(--fx-line)}
.fx-on-dark .fx-chapter .fx-line,.fx-chapter.on-dark .fx-line{background:var(--fx-line-d)}
.fx-on-dark .fx-chapter .fx-ix small{color:#9A9AA4}

/* --- crop marks: wrap any framed visual -------------------- */
.fx-crop{position:relative}
.fx-crop::before,.fx-crop::after,
.fx-crop>.fx-cm{pointer-events:none}
.fx-cm{position:absolute;width:16px;height:16px;border:1px solid var(--bronze-soft);z-index:3;opacity:.9}
.fx-cm.tl{left:-1px;top:-1px;border-right:none;border-bottom:none}
.fx-cm.tr{right:-1px;top:-1px;border-left:none;border-bottom:none}
.fx-cm.bl{left:-1px;bottom:-1px;border-right:none;border-top:none}
.fx-cm.br{right:-1px;bottom:-1px;border-left:none;border-top:none}

/* --- coordinate / notation label --------------------------- */
.fx-coord{font-family:var(--fx-mono);font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--bronze);opacity:.85}

/* --- measurement line: thin rule, end ticks, label --------- */
.fx-measure{position:relative;display:flex;align-items:center;gap:10px;font-family:var(--fx-mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--bronze)}
.fx-measure::before{content:"";flex:1;height:1px;background:currentColor;opacity:.5}
.fx-measure::after{content:"";flex:1;height:1px;background:currentColor;opacity:.5}

/* --- case number label ------------------------------------- */
.fx-case{font-family:var(--fx-mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--bronze);font-weight:500}

/* --- diagnostic annotation (dot + hairline + label) -------- */
.fx-note{position:absolute;z-index:4;display:flex;align-items:center;gap:8px;pointer-events:none}
.fx-note .fx-dot{width:7px;height:7px;border-radius:50%;background:var(--bronze-soft);box-shadow:0 0 0 4px rgba(201,168,106,.18);flex:none}
.fx-note .fx-lbl{font-family:var(--fx-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#EDEDEA;white-space:nowrap}

/* --- hairline rule with inline label ----------------------- */
.fx-rule{display:flex;align-items:center;gap:16px;color:var(--ink-soft)}
.fx-rule::before,.fx-rule::after{content:"";flex:1;height:1px;background:var(--fx-line)}
.fx-rule span{font-family:var(--fx-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--bronze)}

/* --- reveal-in for FRAME motifs (respects reduced-motion) -- */
.fx-cm,.fx-note{transition:opacity .6s ease,transform .6s ease}
.fx-reveal .fx-cm{opacity:0;transform:scale(.6)}
.fx-reveal.in .fx-cm{opacity:.9;transform:none}
.fx-reveal .fx-note{opacity:0;transform:translateX(-6px)}
.fx-reveal.in .fx-note{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .fx-cm,.fx-note{transition:none}
  .fx-reveal .fx-cm,.fx-reveal .fx-note{opacity:.9;transform:none}
}

/* ============================================================
   Reusable components (Analysis report, steps, concern blocks)
   ============================================================ */

/* numbered steps */
.fa-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:8px}
.fa-step{border-top:1px solid var(--fx-line);padding-top:22px}
.fa-step .fx-coord{display:block;margin-bottom:14px}
.fa-step h3{font-family:var(--display);font-weight:400;font-size:20px;margin-bottom:10px}
.fa-step p{color:var(--ink-soft);font-size:14px;line-height:1.6}
@media(max-width:760px){.fa-steps{grid-template-columns:1fr;gap:26px}}

/* Frame Analysis report card */
.report{background:#fff;border:1px solid var(--fx-line);box-shadow:0 30px 70px -46px rgba(22,22,28,.4)}
.report-head{display:flex;justify-content:space-between;align-items:center;background:var(--ink);color:#fff;padding:16px 22px}
.report-head .rid{font-family:var(--fx-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--bronze-soft)}
.report-head .rname{font-family:var(--display);font-size:15px;letter-spacing:.06em}
.report-body{padding:26px 24px}
.report-body h4{font-family:var(--fx-mono);font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--bronze);margin:0 0 16px;font-weight:500}
.assess{display:grid;gap:14px;margin-bottom:26px}
.assess-row{display:grid;grid-template-columns:130px 1fr;gap:14px;align-items:center}
.assess-row .al{font-size:13px;color:var(--ink)}
.assess-bar{height:5px;background:var(--seafog);border-radius:3px;overflow:hidden}
.assess-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--bronze),var(--bronze-soft));border-radius:3px}
.prio{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:10px}
.prio li{display:flex;gap:12px;align-items:baseline;font-size:14px;color:var(--ink)}
.prio li span{font-family:var(--fx-mono);font-size:11px;color:var(--bronze);letter-spacing:.1em}
.report-decline{background:var(--seafog);border-left:2px solid var(--bronze);padding:16px 18px}
.report-decline .k{font-family:var(--fx-mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--bronze);margin-bottom:8px}
.report-decline p{font-size:13.5px;color:var(--ink-soft);line-height:1.6;margin:0}
.report-foot{border-top:1px solid var(--fx-line);padding:14px 24px;font-size:11.5px;color:var(--ink-soft);line-height:1.5}
@media(max-width:760px){.assess-row{grid-template-columns:104px 1fr}}

/* does / doesn't two-column */
.fx-twocol{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:12px}
.fx-twocol .col{border:1px solid var(--fx-line);background:#fff;padding:26px 28px}
.fx-twocol .col.pos{border-top:2px solid var(--bronze)}
.fx-twocol .col.neg{border-top:2px solid #b9bfc0}
.fx-twocol .col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.fx-twocol .col li{position:relative;padding-left:22px;font-size:14px;line-height:1.55;color:var(--ink-soft)}
.fx-twocol .col.pos li::before{content:"+";position:absolute;left:0;color:var(--bronze);font-weight:600}
.fx-twocol .col.neg li::before{content:"\2013";position:absolute;left:0;color:#9aa0a1}
@media(max-width:760px){.fx-twocol{grid-template-columns:1fr}}

/* concern blocks */
.concern-index{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
.concern-index a{font-size:12.5px;letter-spacing:.04em;color:var(--ink);border:1px solid var(--fx-line);border-radius:999px;padding:8px 15px;transition:background .2s,color .2s,border-color .2s}
.concern-index a:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.concern{border-top:1px solid var(--fx-line);padding:44px 0;scroll-margin-top:120px}
.concern-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.concern h3{font-family:var(--display);font-weight:400;font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.concern .cw-sub{color:var(--ink-soft);max-width:44ch}
.concern h4{font-family:var(--fx-mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--bronze);margin:0 0 12px;font-weight:500}
.concern .cw-block{margin-bottom:22px}
.concern ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.concern li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-soft);line-height:1.55}
.concern li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border:1px solid var(--bronze-soft);border-radius:50%}
.concern .more{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--bronze);display:inline-block;margin-top:6px}
@media(max-width:760px){.concern-grid{grid-template-columns:1fr;gap:22px}}

/* ============================================================
   Before / After drag-compare slider
   ============================================================ */
.ba-slider{position:relative;overflow:hidden;background:#101015;border:1px solid #26262f;user-select:none;touch-action:pan-y;cursor:ew-resize}
.ba-slider img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.ba-before-wrap{position:absolute;inset:0;clip-path:inset(0 50% 0 0);z-index:2}
.ba-slider .ba-after{z-index:1}
.ba-tag{position:absolute;bottom:12px;z-index:5;font-family:var(--fx-mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:#fff;background:rgba(16,16,21,.6);padding:5px 10px;border-radius:2px;pointer-events:none}
.ba-tag-b{left:12px}.ba-tag-a{right:12px}
.ba-divider{position:absolute;top:0;bottom:0;left:50%;width:2px;background:rgba(255,255,255,.9);transform:translateX(-1px);z-index:4;pointer-events:none}
.ba-handle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:42px;height:42px;border-radius:50%;background:rgba(16,16,21,.72);border:1px solid var(--bronze-soft);color:#fff;display:flex;align-items:center;justify-content:center;z-index:6;cursor:ew-resize;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:0}
.ba-handle:focus-visible{outline:2px solid var(--bronze);outline-offset:2px}
.ba-handle svg{width:18px;height:18px;pointer-events:none}