/* ==========================================================================
   4Arrows platform — application layer
   Built on the existing industrial design system (base.css).
   Dual-lane colour coding encodes the Africa–Asia corridor:
     ochre  = Ethiopia lane      indigo = China lane
   ========================================================================== */
:root{
  --brand:#124B87; --brand-dk:#0B3357; --brand-soft:#E4EDF6; --grey:#6D6E71; --grey-2:#BABCBE;
  --et:#124B87; --cn:#0B3357;
  --ok:#1F6F4A; --warn:#9A6B00; --stop:#9E2B1C;
  --ink:#0B0F14; --paper:#FAF9F7; --paper-2:#F2F0EB; --rule:#DEDAD2;
  --shadow:0 1px 2px rgba(11,15,20,.06), 0 8px 24px rgba(11,15,20,.06);
}

/* ---------------------------------------------------------------- layout -- */
.app-shell{min-height:60vh}
.wrap{max-width:1340px;margin:0 auto;padding:0 24px}
.page{padding:34px 0 90px}
.page-head{border-bottom:2px solid var(--ink);padding-bottom:18px;margin-bottom:26px}
.page-head h1{font-family:Archivo,sans-serif;font-weight:800;letter-spacing:-.02em;font-size:36px;line-height:1.08;margin:0 0 8px}
.page-head p{margin:0;max-width:74ch;color:#4A525C}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--et);font-weight:600;margin-bottom:8px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:26px;align-items:start}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.between{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.mt0{margin-top:0}.mt8{margin-top:8px}.mt14{margin-top:14px}.mt20{margin-top:20px}.mt28{margin-top:28px}
.mb0{margin-bottom:0}.mb8{margin-bottom:8px}.mb14{margin-bottom:14px}.mb20{margin-bottom:20px}
.muted{color:#5B636D}
.small{font-size:13px}
.tiny{font-size:11.5px}
.mono{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}

/* ------------------------------------------------------------------ cards -- */
.card{background:#fff;border:1px solid var(--rule);border-radius:3px;padding:20px;box-shadow:var(--shadow)}
.card.tight{padding:14px}
.card.flat{box-shadow:none}
.card-h{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px}
.card-h h3{font-family:Archivo,sans-serif;font-weight:700;font-size:16px;margin:0;letter-spacing:-.01em}
.card-link{display:block;color:inherit;text-decoration:none;transition:border-color .12s,transform .12s}
.card-link:hover{border-color:var(--ink);transform:translateY(-1px)}
.stat{background:#fff;border:1px solid var(--rule);border-radius:3px;padding:14px 16px}
.stat .k{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#6B7380}
.stat .v{font-family:Archivo,sans-serif;font-weight:800;font-size:24px;margin-top:6px;letter-spacing:-.02em}
.stat .s{font-size:12px;color:#5B636D;margin-top:3px}

/* ------------------------------------------------------- badges / states -- */
.badge{display:inline-flex;align-items:center;gap:5px;font-family:"IBM Plex Mono",monospace;font-size:10.5px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;padding:3px 7px;border-radius:2px;border:1px solid;white-space:nowrap}
.b-verified{color:#14532D;border-color:#9BC7AE;background:#EDF7F1}
.b-quoted{color:#0B3357;border-color:#A9C2D6;background:#EDF3F8}
.b-estimated{color:#7A5400;border-color:#E4CE93;background:#FCF6E7}
.b-user{color:#3F3A66;border-color:#BEB8D8;background:#F2F1F9}
.b-pending{color:#7A2A1D;border-color:#E2B0A6;background:#FBEEEA}
.b-expired{color:#5B636D;border-color:#CFCAC2;background:#F3F1ED}
.b-et{color:#0B3357;border-color:#A9C2D6;background:#EDF3F8}
.b-cn{color:#0B3357;border-color:#A9C2D6;background:#EDF3F8}
.b-stop{color:#7A2A1D;border-color:#E2B0A6;background:#FBEEEA}
.b-ok{color:#14532D;border-color:#9BC7AE;background:#EDF7F1}
.b-warn{color:#7A5400;border-color:#E4CE93;background:#FCF6E7}
.b-sample{color:#7A2A1D;border-color:#E2B0A6;background:#FBEEEA;font-weight:700}

/* ----------------------------------------------------------------- tables -- */
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{text-align:left;font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
  color:#6B7380;border-bottom:2px solid var(--ink);padding:8px 10px;white-space:nowrap}
.tbl td{padding:10px;border-bottom:1px solid var(--rule);vertical-align:top}
.tbl tr:hover td{background:var(--paper-2)}
.tbl .num{text-align:right;font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ----------------------------------------------------------------- forms -- */
.field{margin-bottom:14px}
.field label{display:block;font-size:12px;font-weight:600;margin-bottom:5px;letter-spacing:.01em}
.field .hint{font-size:11.5px;color:#6B7380;margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--rule);border-radius:2px;background:#fff;font:inherit;font-size:14px;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:var(--brand)}
textarea{min-height:90px;resize:vertical}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font-family:Archivo,sans-serif;font-weight:700;font-size:13.5px;
  letter-spacing:.01em;padding:10px 16px;border-radius:2px;border:1px solid var(--brand);background:var(--brand);color:#fff;cursor:pointer;text-decoration:none;transition:opacity .12s}
.btn:hover{opacity:.88}
.btn.ghost{background:#fff;color:var(--ink)}
.btn.et{background:var(--et);border-color:var(--et)}
.btn.cn{background:var(--cn);border-color:var(--cn)}
.btn.sm{padding:6px 11px;font-size:12.5px}
.btn.block{width:100%}
.btn.danger{background:var(--stop);border-color:var(--stop)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* ------------------------------------------------------------------ misc -- */
.chips{display:flex;gap:7px;flex-wrap:wrap}
.chip{font-size:12px;border:1px solid var(--rule);border-radius:14px;padding:4px 11px;background:#fff;cursor:pointer;user-select:none}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.alert{border-left:3px solid var(--cn);background:#F4F8FB;padding:12px 14px;font-size:13.5px;border-radius:0 2px 2px 0}
.alert.warn{border-color:var(--warn);background:#FDF9EE}
.alert.stop{border-color:var(--stop);background:#FCF0EE}
.alert.ok{border-color:var(--ok);background:#EFF8F2}
.alert b{display:block;margin-bottom:3px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:5px 14px;font-size:13.5px}
.kv dt{color:#6B7380;font-size:12.5px;white-space:nowrap}
.kv dd{margin:0;font-weight:600}
.sec{border-top:1px solid var(--rule);padding-top:20px;margin-top:24px}
.sec h2{font-family:Archivo,sans-serif;font-weight:700;font-size:20px;letter-spacing:-.01em;margin:0 0 4px}
.sec-sub{color:#5B636D;font-size:13.5px;margin:0 0 16px;max-width:74ch}
.empty{border:1px dashed var(--rule);border-radius:3px;padding:28px;text-align:center;color:#6B7380;font-size:14px}
.loading-block{padding:70px 0;text-align:center;color:#6B7380}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--rule);border-top-color:var(--ink);border-radius:50%;
  animation:spin .7s linear infinite;vertical-align:-3px;margin-right:8px}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,var(--paper-2),#fff,var(--paper-2));background-size:200% 100%;animation:sk 1.2s infinite;border-radius:2px}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}
.toast-wrap{position:fixed;right:20px;bottom:20px;z-index:9000;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--ink);color:#fff;padding:11px 15px;border-radius:3px;font-size:13.5px;box-shadow:var(--shadow);max-width:380px;animation:tin .18s ease-out}
.toast.ok{background:#14532D}.toast.err{background:var(--stop)}
@keyframes tin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.modal-bg{position:fixed;inset:0;background:rgba(11,15,20,.55);z-index:8000;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:4px;max-width:640px;width:100%;max-height:86vh;overflow:auto;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.progress{height:4px;background:var(--paper-2);border-radius:2px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--et)}
.stage-list{display:flex;flex-direction:column;gap:2px}
.stage{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:2px;font-size:13.5px;border:1px solid transparent}
.stage.done{color:#3F4A54}
.stage.now{background:#EDF3F8;border-color:#A9C2D6;font-weight:700}
.stage .dot{width:8px;height:8px;border-radius:50%;background:var(--rule);flex:0 0 auto}
.stage.done .dot{background:var(--ok)}.stage.now .dot{background:var(--cn)}
.hero{background:var(--ink);color:#fff;padding:52px 0 46px}
.hero h1{font-family:Archivo,sans-serif;font-weight:800;font-size:44px;letter-spacing:-.025em;line-height:1.05;margin:0 0 14px;max-width:20ch}
.hero p{color:#C6CDD6;max-width:66ch;font-size:16px;margin:0 0 22px}
.hero .eyebrow{color:#7FBCE8}
.timeline{display:flex;gap:6px;flex-wrap:wrap}
.timeline span{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.05em;border:1px solid #3A434E;color:#C6CDD6;padding:5px 10px;border-radius:2px}
.lane{border-left:3px solid var(--rule);padding:2px 0 2px 14px}
.lane.et{border-color:var(--et)}.lane.cn{border-color:var(--cn)}
.metric-big{font-family:Archivo,sans-serif;font-weight:800;font-size:30px;letter-spacing:-.02em;color:var(--ink)}
.tabs{display:flex;gap:2px;border-bottom:2px solid var(--ink);flex-wrap:wrap}
.tab{font-family:Archivo,sans-serif;font-weight:700;font-size:13px;padding:9px 15px;border:1px solid transparent;border-bottom:none;
  background:none;cursor:pointer;color:#5B636D;border-radius:2px 2px 0 0}
.tab.on{background:var(--ink);color:#fff}
.notice{font-size:12.5px;color:#6B7380;border-top:1px solid var(--rule);padding-top:10px;margin-top:14px}
.scroll-x{overflow-x:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.pill-row{display:flex;gap:6px;flex-wrap:wrap;font-size:12px}
.pill{background:var(--paper-2);border-radius:12px;padding:3px 10px;color:#3F4A54}

/* -------------------------------------------------------------- responsive */
@media (max-width:1180px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr}
}
@media (max-width:1024px){
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero h1{font-size:36px}
}
@media (max-width:720px){
  .wrap{padding:0 16px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .page-head h1{font-size:27px}
  .hero h1{font-size:29px}
  .tbl{font-size:12.5px}
  .tbl th,.tbl td{padding:7px 8px}
  .card{padding:15px}
  .btn-row .btn{width:100%}
  .stat .v{font-size:20px}
  .toast-wrap{left:16px;right:16px;bottom:16px}
  .toast{max-width:none}
}

/* ---------------------------------------------------- header / nav branding -- */
.nav a{padding:7px 10px;font-size:13px;font-weight:500;color:var(--graphite);border-radius:2px;white-space:nowrap;border-bottom:2px solid transparent}
.nav a:hover{background:var(--paper-2);color:var(--ink)}
.nav a.on{color:var(--ink);font-weight:700;border-bottom-color:var(--brand)}
.hdr-ghost{appearance:none;background:none;border:1px solid var(--rule-2);color:var(--ink);padding:8px 13px;border-radius:2px;font-family:Archivo,sans-serif;font-weight:600;font-size:13px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}
.hdr-ghost:hover{border-color:var(--brand);background:var(--paper-2)}
.hdr-cta{background:var(--brand);color:#fff;padding:9px 15px;border-radius:2px;font-family:Archivo,sans-serif;font-weight:700;font-size:13px;text-decoration:none;display:inline-flex;align-items:center}
.hdr-cta:hover{background:var(--brand-dk)}
.hdr-cta:focus-visible,.hdr-ghost:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* --------------------------------------------------------- breadcrumbs / back -- */
.page-nav{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.page-nav .bcrumb a{color:var(--brand)}
.page-nav .bcrumb a:hover{color:var(--ink)}
.page-nav .bcrumb span[aria-current]{color:var(--ink);font-weight:600}
.back-link{appearance:none;background:none;border:0;cursor:pointer;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--brand);padding:0;display:inline-flex;align-items:center;gap:6px}
.back-link:hover{color:var(--ink)}
.back-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* --------------------------------------------------------- mobile navigation -- */
.mnav-head{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:56px;border-bottom:1px solid var(--rule)}
.mnav-links{display:flex;flex-direction:column;padding:6px 8px}
.mnav-links a{padding:13px 12px;font-family:Archivo,sans-serif;font-weight:600;font-size:16px;border-bottom:1px solid var(--rule);color:var(--ink)}
.mnav-links a:hover{background:var(--paper-2)}
.mnav-links a.on{color:var(--brand);box-shadow:inset 3px 0 0 var(--brand)}
.mnav-cta{display:flex;gap:8px;padding:16px;flex-wrap:wrap}

/* ------------------------------------------------------------ tab active state -- */
.tab.on{background:var(--brand);color:#fff;box-shadow:inset 0 -2px 0 var(--brand-dk)}

@media (max-width:1024px){
  .hdr-act{display:none}
}
@media (max-width:720px){
  .page-nav{flex-direction:column;align-items:flex-start;gap:9px}
}

/* ================= corporate navy chrome — portal continuity ================ */
.hdr{background:linear-gradient(135deg,#08263F 0%,#0E3F72 58%,#0B3357 100%);border-bottom:1px solid rgba(255,255,255,.12)}
.hdr .brand-txt b{color:#fff}
.hdr .brand-txt span{color:#8FB2D6}
.hdr .nav a{color:#C6D8EA}
.hdr .nav a:hover{background:rgba(255,255,255,.09);color:#fff}
.hdr .nav a.on{color:#fff;border-bottom-color:#7FBCE8}
.hdr .hdr-ghost{color:#fff;border-color:rgba(255,255,255,.34)}
.hdr .hdr-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.hdr .hdr-cta{background:#fff;color:var(--brand)}
.hdr .hdr-cta:hover{background:#E4EDF6}
.hdr .icon-btn{color:#fff}
.banner-demo{background:#08263F}
.ftr{background:linear-gradient(180deg,#0B3357 0%,#08263F 100%)}