/* ---------------------------------------------------------------------------
   Outsource China — Intelligent Trading Solutions

   The hub (/solutions) and the four simulation workspaces
   (/solutions/{slug}). Command-plate hero, precision data cards, and
   terminal panels for the simulations. Builds on intel.css. Every animation
   here explains work in progress and stops under reduced motion.
--------------------------------------------------------------------------- */

/* --- Hub hero ---------------------------------------------------------------- */

.its-hero {
  position: relative; overflow: hidden; padding: 72px 0 56px;
  background:
    radial-gradient(900px 380px at 80% -10%, rgba(90, 215, 239, .16), transparent 62%),
    radial-gradient(700px 320px at 0% 120%, rgba(242, 160, 50, .10), transparent 60%),
    var(--plate-1);
  color: var(--plate-text);
}
.its-hero__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background-image:
    linear-gradient(var(--plate-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--plate-line) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(70% 90% at 60% 40%, #000, transparent);
          mask-image: radial-gradient(70% 90% at 60% 40%, #000, transparent);
}
.its-hero__inner { position: relative; }
.its-hero__eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 var(--s-4); color: var(--signal-on-plate); }
.its-hero h1 { margin: 0; max-width: 18ch; font-size: clamp(34px, 4.4vw, 60px); line-height: 1.04; letter-spacing: -.035em; color: var(--plate-text); }
.its-hero h1 em { font-style: normal; color: var(--signal-on-plate); }
.its-hero__lede { max-width: 62ch; margin: var(--s-4) 0 var(--s-5); font-size: 17px; line-height: 1.55; color: var(--plate-text-muted); }
.its-hero__kpi { max-width: 640px; }
.its-hero__note { max-width: 70ch; margin: var(--s-4) 0 0; font-size: 12.5px; color: var(--plate-text-muted); }

/* --- Hub cards --------------------------------------------------------------- */

.its-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4);
  margin-top: calc(-1 * var(--s-6)); position: relative; padding-bottom: var(--s-6);
}
.its-card {
  display: grid; grid-template-rows: auto auto auto auto 1fr auto; gap: var(--s-3);
  padding: var(--s-5); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); transition: border-color .15s, transform .15s, box-shadow .15s;
}
.its-card:hover { border-color: var(--signal); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.its-card__head { display: flex; align-items: center; gap: var(--s-3); }
.its-card__code {
  display: grid; place-items: center; min-width: 34px; height: 26px; padding: 0 6px;
  border-radius: var(--radius-sm); background: var(--plate-2); color: var(--signal-on-plate);
  font-size: 12px; font-weight: 800;
}
.its-card__metric { margin-left: auto; font-size: 11.5px; color: var(--text-subtle); }
.its-card__metric b { font-size: 15px; color: var(--signal); }
.its-card__title { margin: 0; font-size: 20px; line-height: 1.2; letter-spacing: -.015em; }
.its-card__lede { margin: 0; color: var(--text-muted); font-size: 14px; }
.its-card__points { display: grid; gap: 4px; margin: 0; padding: 0; list-style: none; font-size: 13px; }
.its-card__points li { display: flex; gap: 8px; }
.its-card__points li::before { content: "▸"; color: var(--signal); }
.its-card__cta {
  justify-self: start; display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: var(--radius); background: var(--plate-1); color: var(--plate-text);
  font: 600 13px/1.2 var(--mono); letter-spacing: .02em;
}
.its-card__cta:hover { background: var(--plate-3); color: var(--signal-on-plate); text-decoration: none; }
.its-card__cta span[aria-hidden] { color: var(--signal-on-plate); }

/* Card schematics — decorative */
.its-card__fig {
  display: grid; place-items: center; height: 112px; padding: var(--s-3);
  background: var(--plate-1); border: 1px solid var(--plate-line-strong); border-radius: var(--radius);
  background-image: linear-gradient(var(--plate-line) 1px, transparent 1px), linear-gradient(90deg, var(--plate-line) 1px, transparent 1px);
  background-size: 16px 16px; color: var(--plate-text);
}
.fig-hs { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: center; gap: 2px; font: 700 30px/1 var(--mono); }
.fig-hs i { font-style: normal; color: var(--plate-text-muted); }
.fig-hs b { margin-left: 6px; padding: 0 6px; border-radius: 3px; background: var(--signal-on-plate); color: var(--plate-0); }
.fig-hs small { flex-basis: 100%; margin-top: 8px; text-align: center; font: 600 9.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--plate-text-muted); }
.fig-cx { display: grid; grid-template-columns: auto repeat(3, 18px); gap: 4px 6px; align-items: center; font: 600 10px/1 var(--mono); color: var(--plate-text-muted); }
.fig-cx i { height: 12px; border-radius: 2px; }
.fig-cx .r0 { background: rgba(86, 217, 154, .7); }
.fig-cx .r1 { background: rgba(242, 192, 99, .8); }
.fig-cx .r2 { background: rgba(255, 138, 128, .85); }
.fig-doc { display: flex; align-items: center; gap: var(--s-3); font: 700 18px/1 var(--mono); color: var(--signal-on-plate); }
.fig-doc__raw { display: grid; gap: 5px; width: 90px; }
.fig-doc__raw i { height: 5px; border-radius: 2px; background: var(--plate-line-strong); }
.fig-doc__raw i:nth-child(2n) { width: 70%; }
.fig-doc__grid { display: grid; grid-template-columns: repeat(3, 28px); gap: 3px; }
.fig-doc__grid i { height: 12px; border: 1px solid var(--signal-on-plate); border-radius: 2px; background: rgba(90, 215, 239, .12); }
.fig-tco { display: grid; grid-template-columns: repeat(6, 22px); gap: 8px; align-items: end; height: 84px; }
.fig-tco i { position: relative; height: 84px; }
.fig-tco i::before {
  content: ""; position: absolute; left: 0; right: 0;
  bottom: calc(var(--b, 0) * 100%); height: calc(var(--h) * 100%);
  background: var(--signal-on-plate); border-radius: 2px 2px 0 0; opacity: .8;
}
.fig-tco i.is-total::before { background: var(--brand-on-dark); opacity: 1; }

/* --- Where it fits ---------------------------------------------------------- */

.its-flow { padding-bottom: var(--s-7); }
.its-flow h2 { margin: var(--s-1) 0 var(--s-4); font-size: 24px; }
.its-flow__steps {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none;
  border: 1px solid var(--border-strong); border-radius: var(--radius-lg); background: var(--surface); overflow: hidden;
}
.its-flow__steps li { display: grid; gap: 4px; padding: var(--s-4); }
.its-flow__steps li + li { border-left: 1px solid var(--grid-line-strong); }
.its-flow__steps .num { font-weight: 700; font-size: 12px; color: var(--signal); }
.its-flow__steps small { color: var(--text-muted); font-size: 12.5px; }
.its-flow__steps .is-brief { background: var(--brand-subtle); }
.its-flow__steps .is-brief .num { color: var(--brand-hover); }
.its-flow__cta { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-top: var(--s-4); }

/* --- Demo shell -------------------------------------------------------------- */

.its-demo__head { padding: var(--s-5) 0 0; background: var(--plate-1); color: var(--plate-text); border-bottom: 1px solid var(--plate-line); }
.its-demo__path { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--s-3); color: var(--plate-text-muted); }
.its-demo__path a { color: var(--signal-on-plate); }
.its-demo__title { display: flex; gap: var(--s-4); align-items: flex-start; }
.its-demo__title .its-card__code { margin-top: 6px; background: var(--signal-on-plate); color: var(--plate-0); }
.its-demo__title h1 { margin: 0; font-size: clamp(24px, 2.6vw, 34px); line-height: 1.15; color: var(--plate-text); }
.its-demo__title p { max-width: 74ch; margin: var(--s-2) 0 0; color: var(--plate-text-muted); }
.its-switch { display: flex; gap: 2px; margin-top: var(--s-5); overflow-x: auto; scrollbar-width: none; }
.its-switch::-webkit-scrollbar { display: none; }
.its-switch a {
  flex: none; padding: 9px 14px; border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  font-size: 13px; font-weight: 600; color: var(--plate-text-muted); white-space: nowrap;
}
.its-switch a .num { color: var(--signal-on-plate); font-size: 11.5px; }
.its-switch a:hover { color: var(--plate-text); background: var(--plate-hover); text-decoration: none; }
.its-switch a[aria-current="page"] { background: var(--bg); color: var(--text); }
.its-switch a[aria-current="page"] .num { color: var(--signal); }

.sim-banner {
  display: flex; align-items: center; gap: var(--s-3); margin: var(--s-4) 0;
  padding: 10px var(--s-4); border: 1px dashed var(--border-strong); border-radius: var(--radius);
  background: var(--surface); font-size: 13px; color: var(--text-muted);
}
.sim-banner__tag { flex: none; padding: 3px 7px; border-radius: 2px; background: var(--warning-subtle); color: var(--warning); }

.sim { display: grid; gap: var(--s-4); }
/* Panels revealed by the script keep their layout class; [hidden] must still win. */
.sim [hidden], [data-hs-detail][hidden] { display: none !important; }
.sim-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-4); align-items: start; }
.sim-grid--side { grid-template-columns: minmax(0, 380px) minmax(0, 1fr); }
.sim-grid--2 { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.sim-grid--2 > .ifr + .ifr { margin-top: 0; }
.sim-span { grid-column: 1 / -1; }
.sim .ifr { margin: 0; }

.sim-panel { background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); overflow: hidden; }
.sim-panel__head { display: flex; align-items: center; justify-content: space-between; gap: var(--s-2); padding: 10px var(--s-4); border-bottom: 1px solid var(--border); background: var(--surface-sunken); }
.sim-panel__body { display: grid; gap: var(--s-3); padding: var(--s-4); }
.sim-panel--dark { background: var(--plate-1); border-color: var(--plate-line-strong); color: var(--plate-text); min-height: 280px; }
.sim-panel--dark .sim-panel__head { background: var(--plate-0); border-color: var(--plate-line); }
.sim-panel--dark .label-mono { color: var(--signal-on-plate); }
.sim-status { font: 600 10.5px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--plate-text-muted); }
.sim-status.is-busy { color: var(--signal-on-plate); }
.sim-status.is-busy::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: currentColor; animation: sim-blink .8s steps(2) infinite; }
.sim-status.is-done { color: var(--ok-on-plate); }
.sim-status.is-warn { color: var(--caution-on-plate); }
.sim-hint { margin: 0; font-size: 12px; color: var(--text-subtle); }
.sim-note { margin: 0; padding: 10px var(--s-4); font-size: 12px; color: var(--text-muted); border-top: 1px solid var(--grid-line); }
.ifr__body .sim-note { padding-left: 0; padding-right: 0; border-top: 0; }
.sim-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.sim-chip {
  padding: 5px 10px; border: 1px solid var(--border-strong); border-radius: var(--radius-pill);
  background: var(--surface); font: 600 12px/1.2 var(--font); color: var(--text); cursor: pointer;
}
.sim-chip:hover, .sim-chip.is-on { border-color: var(--signal); background: var(--signal-subtle); color: var(--signal); }
.sim textarea { font-family: var(--mono); font-size: 13px; min-height: 120px; }

/* Terminal log */
.sim-log { display: grid; gap: 3px; margin: 0; padding: 0; list-style: none; font: 12px/1.5 var(--mono); color: var(--plate-text); }
.sim-log li { animation: sim-in .2s ease-out both; }
.sim-log__t { display: inline-block; min-width: 72px; color: var(--signal-on-plate); text-transform: uppercase; font-size: 10.5px; letter-spacing: .06em; }
.sim-log:empty::before { content: "Waiting for input…"; color: var(--plate-text-muted); }

.meter { flex: 1; height: 8px; border-radius: 4px; background: var(--plate-3); overflow: hidden; }
.meter i { display: block; height: 100%; width: 0; background: var(--ok-on-plate); transition: width .7s ease-out; }
.meter.is-low i { background: var(--caution-on-plate); }

/* --- S1 tariff classification ----------------------------------------------- */

.hs-out { display: grid; gap: var(--s-2); padding-top: var(--s-3); border-top: 1px solid var(--plate-line); }
.hs-out[hidden] { display: none; }
.hs-code { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px; font: 700 clamp(28px, 3.6vw, 44px)/1 var(--mono); letter-spacing: -.01em; }
.hs-code i { font-style: normal; color: var(--plate-text-muted); }
.hs-code b { margin-left: 6px; padding: 0 8px; border-radius: 4px; background: var(--signal-on-plate); color: var(--plate-0); }
.hs-code b.is-tbc { background: transparent; border: 1.5px dashed var(--plate-line-strong); color: var(--plate-text-muted); }
.hs-desc { margin: 0; font-size: 13px; color: var(--plate-text-muted); }
.hs-conf { display: flex; align-items: center; gap: var(--s-3); }
.hs-conf b { font-size: 18px; color: var(--ok-on-plate); }
.hs-eu { margin: 0; font-size: 13px; }
.hs-eu b { margin-left: 6px; color: var(--plate-text); }
.hs-why { display: grid; gap: var(--s-2); margin: 0; padding-left: 18px; font-size: 13px; }
.dgrid tr.is-pick > * { background: var(--signal-subtle); }

/* --- S2 compliance risk --------------------------------------------------------- */

.cxr-pick { display: grid; gap: 4px; margin: 0; padding: 0; border: 0; }
.cxr-opt { display: flex; align-items: center; gap: var(--s-2); margin: 0; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-weight: 400; color: var(--text); cursor: pointer; }
.cxr-opt input { width: auto; margin: 0; accent-color: var(--signal); }
.cxr-opt b { display: block; font-size: 13px; }
.cxr-opt small { font-size: 11px; color: var(--text-subtle); }
.cxr-opt:has(input:checked) { border-color: var(--signal); background: var(--signal-subtle); }
.cxr-dest { display: grid; gap: 4px; margin: 0; }
.cxr-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--plate-line); border: 1px solid var(--plate-line); border-radius: var(--radius-sm); overflow: hidden; }
.cxr-summary[hidden] { display: none; }
.cxr-summary div { display: grid; gap: 4px; padding: 10px; background: var(--plate-1); }
.cxr-summary b { font-size: 22px; }
.cxr-summary div:nth-child(1) b { color: var(--alert-on-plate); }
.cxr-summary div:nth-child(2) b { color: var(--caution-on-plate); }
.cxr-summary div:nth-child(3) b { color: var(--ok-on-plate); }
.cxr-table td, .cxr-table th { vertical-align: top; }
.cxr-table tbody th { width: 22%; }
.risk { display: inline-block; min-width: 64px; padding: 2px 7px; border-radius: 2px; text-align: center; font: 700 10.5px/1.5 var(--mono); text-transform: uppercase; }
.risk--high   { color: var(--danger);  background: var(--danger-subtle); }
.risk--medium { color: var(--warning); background: var(--warning-subtle); }
.risk--low    { color: var(--success); background: var(--success-subtle); }
.risk--na     { color: var(--text-subtle); border: 1px dashed var(--border-strong); }
.cxr-table tr.risk-high > th { box-shadow: inset 3px 0 0 var(--danger); }
.cxr-table tr.risk-na > * { color: var(--text-subtle); }

/* --- S3 document ingestion ------------------------------------------------------ */

.doc-drop {
  display: grid; gap: 4px; place-items: center; padding: var(--s-4); text-align: center; cursor: pointer;
  border: 1.5px dashed var(--border-strong); border-radius: var(--radius); background: var(--surface-sunken);
  font-size: 12.5px; color: var(--text-muted);
}
.doc-drop b { font-size: 13.5px; color: var(--text); }
.doc-drop:hover, .doc-drop.is-over { border-color: var(--signal); background: var(--signal-subtle); }
.doc-drop:focus-visible { box-shadow: var(--ring); }
.doc-raw {
  margin: 0; max-height: 320px; overflow: auto; padding: var(--s-3);
  background: var(--photo-plate); color: #1c2430; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font: 11.5px/1.55 var(--mono); white-space: pre;
}
.doc-raw mark { background: rgba(90, 215, 239, .35); color: inherit; border-radius: 2px; box-shadow: 0 0 0 1px rgba(11, 125, 147, .45); }
.doc-checks { display: grid; gap: 4px; margin: 0; padding: 0; list-style: none; font-size: 12.5px; }
.doc-checks li { display: flex; gap: 8px; }
.doc-checks li span { flex: none; width: 16px; text-align: center; font-weight: 800; }
.doc-checks .is-ok span { color: var(--ok-on-plate); }
.doc-checks .is-flag span { color: var(--caution-on-plate); }
.doc-head { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin: 0; background: var(--grid-line-strong); border: 1px solid var(--grid-line-strong); }
.doc-head div { padding: 8px 10px; background: var(--surface); }
.doc-head dd { margin: 3px 0 0; font-size: 13px; font-weight: 600; overflow-wrap: anywhere; }

/* --- S4 landed cost ------------------------------------------------------------------ */

.tco-field { display: grid; gap: 6px; }
.tco-field label { display: flex; justify-content: space-between; align-items: baseline; margin: 0; }
.tco-field output { font-size: 14px; font-weight: 700; color: var(--signal); }
.tco-field input[type="range"] { width: 100%; padding: 0; border: 0; accent-color: var(--signal); background: none; box-shadow: none; }
.tco-field--2 { grid-template-columns: 1fr 1fr; gap: var(--s-2) var(--s-3); }
.tco-field--2 > div { display: grid; gap: 4px; }
.tco-seg { margin: 0; padding: 0; border: 0; min-width: 0; }
.tco-seg__opts { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); overflow: hidden; }
.tco-seg legend { margin-bottom: 4px; padding: 0; font-size: 12px; font-weight: 600; color: var(--text-muted); }
.tco-seg label { position: relative; margin: 0; cursor: pointer; text-align: center; }
.tco-seg label + label { border-left: 1px solid var(--border-strong); }
.tco-seg input { position: absolute; opacity: 0; }
.tco-seg span { display: block; padding: 8px 4px; font-size: 13px; font-weight: 600; color: var(--text); }
.tco-seg small { display: block; font: 600 10px/1.3 var(--mono); color: var(--text-subtle); }
.tco-seg input:checked + span { background: var(--plate-2); color: var(--plate-text); }
.tco-seg input:checked + span small { color: var(--signal-on-plate); }
.tco-seg input:focus-visible + span { box-shadow: inset var(--ring); }
.tco-assume { border-top: 1px solid var(--border); padding-top: var(--s-3); }
.tco-assume summary { display: flex; align-items: center; gap: var(--s-2); margin-bottom: var(--s-3); cursor: pointer; font-size: 13px; font-weight: 600; }

.tco-kpi { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 1px; margin: 0; background: var(--plate-line); border: 1px solid var(--plate-line); border-radius: var(--radius-sm); overflow: hidden; }
.tco-kpi div { padding: 10px var(--s-3); background: var(--plate-1); }
.tco-kpi dd { margin: 4px 0 0; font-size: 22px; font-weight: 700; color: var(--plate-text); }
.tco-kpi div:first-child dd { color: var(--brand-on-dark); font-size: 28px; }

.wf { margin: 0; }
.wf__plot { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: var(--s-2); align-items: end; padding: var(--s-3) 0 0; border-bottom: 1px solid var(--plate-line-strong); }
.wf__col { display: grid; gap: 4px; text-align: center; min-width: 0; }
.wf__track { position: relative; height: 200px; background-image: linear-gradient(var(--plate-line) 1px, transparent 1px); background-size: 100% 25%; }
.wf__track i { position: absolute; left: 12%; right: 12%; border-radius: 2px 2px 0 0; background: var(--signal-on-plate); transition: bottom .35s ease-out, height .35s ease-out; }
.wf__col--fob .wf__track i { background: #4f9fd9; }
.wf__col--duty .wf__track i { background: var(--caution-on-plate); }
.wf__col--insp .wf__track i { background: var(--ok-on-plate); }
.wf__col--total .wf__track i { background: var(--brand-on-dark); }
.wf__col b { font-size: 12px; color: var(--plate-text); overflow-wrap: anywhere; }
.wf__col span { font: 600 9.5px/1.2 var(--mono); text-transform: uppercase; letter-spacing: .04em; color: var(--plate-text-muted); }
.tco-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.tco-table th, .tco-table td { padding: 6px 0; border-bottom: 1px solid var(--plate-line); text-align: left; font-weight: 400; color: var(--plate-text-muted); }
.tco-table td { text-align: right; color: var(--plate-text); }
.tco-table .is-total > * { border-bottom: 0; font-weight: 700; color: var(--brand-on-dark); }
.tco-routes tr.is-current > * { background: var(--signal-subtle); }

/* --- Next step ----------------------------------------------------------------- */

.its-demo__next {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-4);
  margin: var(--s-6) 0 var(--s-7); padding: var(--s-5); border-radius: var(--radius-lg);
  background: var(--plate-1); color: var(--plate-text);
}
.its-demo__next .label-mono { margin: 0 0 var(--s-1); color: var(--signal-on-plate); }
.its-demo__next h2 { margin: 0; max-width: 40ch; font-size: 20px; color: var(--plate-text); }

@keyframes sim-in { from { opacity: 0; transform: translateX(-4px); } }
@keyframes sim-blink { 50% { opacity: .2; } }

/* --- Responsive ----------------------------------------------------------------- */

@media (max-width: 1100px) {
  .sim-grid, .sim-grid--side, .sim-grid--2 { grid-template-columns: 1fr; }
  .doc-head { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .its-flow__steps { grid-template-columns: 1fr 1fr; }
  .its-flow__steps li + li { border-left: 0; }
  .its-flow__steps li { border-top: 1px solid var(--grid-line-strong); }
}
@media (max-width: 760px) {
  .its-grid { grid-template-columns: 1fr; margin-top: 0; padding-top: var(--s-4); }
  .its-hero { padding: 48px 0 40px; }
  .wf__track { height: 150px; }
  .wf__col b { font-size: 10px; }
  .tco-kpi { grid-template-columns: 1fr; }
  .cxr-summary { grid-template-columns: 1fr 1fr; }
  .doc-head { grid-template-columns: 1fr; }
  .sim-banner { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  .its-card, .meter i, .wf__track i { transition: none; }
  .sim-log li, .sim-status.is-busy::before { animation: none; }
}