/* ============================================================
   ihracathub.com — Editorial finance-media design system
   Inspired by FT / Bloomberg: warm paper, tight type, hairlines
   ============================================================ */

:root {
  /* Surfaces */
  --paper: #F5F1EA;        /* FT cream */
  --paper-2: #EFE9DE;      /* warmer card */
  --paper-3: #E8E1D2;      /* deeper section */
  --ink: #0E1518;          /* near-black */
  --ink-2: #2A3338;        /* secondary text */
  --ink-3: #5A6469;        /* tertiary / captions */
  --ink-4: #8C9499;        /* hints */
  --rule: #D7CFBF;         /* hairline on paper */
  --rule-2: #BFB59E;       /* stronger rule */

  /* Primary: petrol/lacivert */
  --primary: #0B2A3B;
  --primary-2: #143A4F;
  --primary-3: #1F4F69;
  --primary-tint: #DFE6EB;

  /* Accent: signal amber (FT pink-style functional accent) */
  --accent: #C8861D;
  --accent-2: #A86F12;
  --accent-tint: #F4E5C8;

  /* Semantic */
  --pos: #1F5F4A;
  --pos-tint: #D9E7DF;
  --neg: #A33B2A;
  --neg-tint: #EFD5CF;
  --warn: #B07514;
  --warn-tint: #F4E5C8;

  /* Type */
  --f-sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --f-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;

  /* Spacing scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;

  /* Layout */
  --max: 1280px;
  --gutter: 32px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }

button { font-family: inherit; cursor: pointer; }

/* ----- Editorial primitives ----- */

.eyebrow {
  font-family: var(--f-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow.accent { color: var(--accent-2); }
.eyebrow.primary { color: var(--primary); }

.h-display {
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 64px;
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--ink);
  text-wrap: balance;
}
.h-1 {
  font-size: 44px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.h-2 {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
}
.h-3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.h-4 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
}

.lede {
  font-size: 20px;
  line-height: 1.45;
  color: var(--ink-2);
  letter-spacing: -0.005em;
  text-wrap: pretty;
}

.body { color: var(--ink-2); line-height: 1.6; }
.caption { font-size: 13px; color: var(--ink-3); line-height: 1.45; }
.tiny { font-size: 11px; color: var(--ink-3); letter-spacing: 0.02em; }

.mono { font-family: var(--f-mono); font-feature-settings: "tnum"; }
.num { font-family: var(--f-mono); font-feature-settings: "tnum"; }

/* Hairlines */
.hr { border: 0; border-top: 1px solid var(--rule); margin: 0; }
.hr-strong { border: 0; border-top: 1px solid var(--ink); margin: 0; }
.hr-double { border: 0; border-top: 3px double var(--ink); margin: 0; }

/* ----- Layout ----- */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.grid { display: grid; gap: var(--s-5); }
.grid-12 { grid-template-columns: repeat(12, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 900px) {
  .grid-12, .grid-6, .grid-4, .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .h-display { font-size: 44px; }
  .h-1 { font-size: 32px; }
}

/* ----- Top nav ----- */
.topbar {
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  border-bottom: 1px solid #000;
}
.topbar-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 32px;
  font-family: var(--f-mono);
  letter-spacing: 0.01em;
}
.ticker {
  display: flex;
  gap: 24px;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-item { color: #C7BFB0; }
.ticker-item .v { color: var(--paper); }
.ticker-item .pos { color: #7FCBA8; }
.ticker-item .neg { color: #E89C8E; }

.nav {
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-row {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}
.brand {
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}
.brand-suffix {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
  border-left: 1px solid var(--rule);
  padding-left: 8px;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 500;
  flex: 1;
}
.nav-link {
  color: var(--ink-2);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.nav-link:hover { color: var(--ink); text-decoration: none; }
.nav-link.active { color: var(--ink); border-bottom-color: var(--accent); }

.nav-cta {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: all 0.12s ease;
}
.btn:hover { background: var(--primary); border-color: var(--primary); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }
.btn.accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.accent:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn.sm { padding: 6px 10px; font-size: 12px; }
.btn.lg { padding: 14px 22px; font-size: 15px; }
.btn.link { background: transparent; border: 0; padding: 0; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; text-decoration-color: var(--accent); }

/* ----- Cards / panels ----- */
.card {
  background: var(--paper);
  border: 1px solid var(--rule);
}
.card.bordered { border: 1px solid var(--ink); }
.card.flat { background: var(--paper-2); border: 1px solid var(--rule); }
.card-pad { padding: 24px; }
.card-pad-lg { padding: 32px; }

.section { padding: 80px 0; }
.section.tight { padding: 56px 0; }
.section.cream { background: var(--paper-2); }
.section.deep { background: var(--ink); color: var(--paper); }
.section.deep .h-1, .section.deep .h-2, .section.deep .h-3, .section.deep .h-display { color: var(--paper); }
.section.deep .lede, .section.deep .body { color: #C7BFB0; }
.section.deep .caption { color: #9C9486; }

/* ----- Tags / pills ----- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--rule-2);
  background: transparent;
  color: var(--ink-2);
  font-family: var(--f-mono);
  text-transform: uppercase;
}
.tag.pos { color: var(--pos); border-color: var(--pos); background: var(--pos-tint); }
.tag.neg { color: var(--neg); border-color: var(--neg); background: var(--neg-tint); }
.tag.warn { color: var(--warn); border-color: var(--warn); background: var(--warn-tint); }
.tag.solid { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tag.accent { background: var(--accent-tint); color: var(--accent-2); border-color: var(--accent-2); }
.tag.primary { background: var(--primary-tint); color: var(--primary); border-color: var(--primary); }

/* ----- Form controls ----- */
.input, .select, .textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--rule-2);
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
  transition: border 0.12s;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--ink);
}
.input.lg { padding: 16px 18px; font-size: 17px; }
.input.mono { font-family: var(--f-mono); }
.label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.help {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 4px;
}

/* ----- Tables ----- */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.tbl th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 1px solid var(--ink);
  background: transparent;
}
.tbl td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.tbl tr:hover td { background: var(--paper-2); }
.tbl td.num, .tbl th.num { text-align: right; font-family: var(--f-mono); font-feature-settings: "tnum"; }

/* ----- KPI / data blocks ----- */
.kpi {
  border-top: 2px solid var(--ink);
  padding-top: 12px;
}
.kpi-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.kpi-value {
  font-family: var(--f-mono);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-top: 4px;
  color: var(--ink);
}
.kpi-delta {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--pos);
  margin-top: 2px;
}
.kpi-delta.neg { color: var(--neg); }

/* ----- Footer ----- */
.footer {
  background: var(--ink);
  color: #C7BFB0;
  padding: 64px 0 32px;
  font-size: 13px;
}
.footer h5 { color: var(--paper); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 16px; font-weight: 600; }
.footer a { color: #C7BFB0; display: block; padding: 4px 0; }
.footer a:hover { color: var(--paper); }
.footer .legal {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #2A3338;
  font-size: 11px;
  color: #8C9499;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

/* ----- Page header ----- */
.page-header {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--ink);
}
.page-header .crumbs {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.page-header .crumbs a { color: var(--ink-3); }
.page-header .crumbs a:hover { color: var(--ink); }

/* ----- Misc ----- */
.flag {
  width: 18px;
  height: 12px;
  display: inline-block;
  vertical-align: middle;
  background: var(--rule);
  margin-right: 6px;
  border: 1px solid var(--rule-2);
}
.bar {
  height: 6px;
  background: var(--paper-3);
  position: relative;
  overflow: hidden;
}
.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--ink);
}
.bar-fill.accent { background: var(--accent); }
.bar-fill.primary { background: var(--primary); }
.bar-fill.pos { background: var(--pos); }
.bar-fill.neg { background: var(--neg); }

.divider-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 32px 0 16px;
}
.divider-label::before, .divider-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--rule);
}

/* Spinner / progress */
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--rule);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Subtle grid for placeholder blocks */
.placeholder {
  background:
    repeating-linear-gradient(
      135deg,
      var(--paper-2) 0 8px,
      var(--paper-3) 8px 16px
    );
  border: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* Scroll niceties */
.scroll-x { overflow-x: auto; }
.scroll-x::-webkit-scrollbar { height: 6px; }
.scroll-x::-webkit-scrollbar-thumb { background: var(--rule-2); }

/* Anchor links */
.anchor-list a { display: block; padding: 8px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); }
.anchor-list a:hover { color: var(--ink); }

/* Hover states */
.tool-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.15s;
  cursor: pointer;
  position: relative;
}
.tool-card:hover {
  border-color: var(--ink);
  background: var(--paper-2);
}
.tool-card .arrow {
  position: absolute;
  top: 24px;
  right: 24px;
  font-family: var(--f-mono);
  color: var(--ink-3);
  transition: transform 0.15s;
}
.tool-card:hover .arrow { transform: translateX(4px); color: var(--ink); }

/* Banner stripe */
.stripe {
  background: var(--accent-tint);
  border-top: 1px solid var(--accent-2);
  border-bottom: 1px solid var(--accent-2);
  padding: 12px 0;
  font-size: 13px;
  color: var(--ink-2);
}
.stripe .lbl {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--accent-2);
  color: #fff;
  padding: 2px 6px;
  margin-right: 10px;
}

/* Confidence meter */
.confidence {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.confidence .pips {
  display: flex;
  gap: 2px;
}
.confidence .pip {
  width: 8px;
  height: 12px;
  background: var(--rule);
}
.confidence .pip.on { background: var(--ink); }
.confidence .pip.on.high { background: var(--pos); }
.confidence .pip.on.med { background: var(--accent); }
.confidence .pip.on.low { background: var(--neg); }

/* Tab list (segmented) */
.tabs {
  display: inline-flex;
  border: 1px solid var(--ink);
  background: var(--paper);
}
.tabs .tab {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--ink-2);
  border-right: 1px solid var(--rule);
  background: transparent;
  border-top: 0;
  border-bottom: 0;
  border-left: 0;
}
.tabs .tab:last-child { border-right: 0; }
.tabs .tab.active { background: var(--ink); color: var(--paper); }

/* Step indicator */
.steps {
  display: flex;
  gap: 0;
  border: 1px solid var(--rule);
  font-family: var(--f-mono);
  font-size: 12px;
}
.steps .step {
  flex: 1;
  padding: 12px 16px;
  border-right: 1px solid var(--rule);
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 8px;
}
.steps .step:last-child { border-right: 0; }
.steps .step.active { background: var(--ink); color: var(--paper); }
.steps .step.done { color: var(--ink); }
.steps .step .n { font-weight: 600; }

/* Result block */
.result-band {
  background: var(--ink);
  color: var(--paper);
  padding: 32px;
  border: 1px solid var(--ink);
}
.result-band .label { color: #9C9486; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; font-family: var(--f-mono); }
.result-band .value { font-family: var(--f-mono); font-size: 48px; letter-spacing: -0.02em; line-height: 1; margin-top: 8px; }
.result-band .sub { color: #C7BFB0; margin-top: 8px; font-size: 13px; }

/* Pricing card */
.price-card {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.price-card.featured {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.price-card.featured .h-2, .price-card.featured .h-3 { color: var(--paper); }
.price-card .price {
  font-family: var(--f-mono);
  font-size: 48px;
  letter-spacing: -0.02em;
  line-height: 1;
}
.price-card .price small { font-size: 14px; color: var(--ink-3); }
.price-card.featured .price small { color: #9C9486; }
.price-card ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.price-card li::before {
  content: '→';
  color: var(--accent);
  margin-right: 8px;
  font-family: var(--f-mono);
}

/* Article body */
.article {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  font-family: var(--f-serif);
}
.article p { margin: 0 0 18px; }
.article h2 { font-family: var(--f-sans); font-size: 26px; margin: 40px 0 16px; letter-spacing: -0.015em; }
.article h3 { font-family: var(--f-sans); font-size: 19px; margin: 28px 0 10px; }
.article ul { margin: 0 0 18px 20px; }
.article blockquote {
  margin: 24px 0;
  padding: 0 0 0 20px;
  border-left: 3px solid var(--accent);
  font-family: var(--f-sans);
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.article a { border-bottom: 1px solid var(--accent); }

/* Persona quote box */
.persona-quote {
  background: var(--paper-2);
  border-left: 3px solid var(--accent);
  padding: 24px;
  font-family: var(--f-serif);
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink);
  font-style: italic;
}

/* Inline calculator box (inside articles) */
.inline-calc {
  border: 2px solid var(--accent);
  padding: 20px 24px;
  background: var(--paper);
  font-family: var(--f-sans);
}
.inline-calc select,
.inline-calc input {
  appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
  outline: none;
}
.inline-calc select:focus,
.inline-calc input:focus {
  border-color: var(--accent) !important;
}

/* Article h4 */
.article h4 { font-family: var(--f-sans); font-size: 15px; font-weight: 600; margin: 20px 0 8px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-3); }

/* Article ordered list */
.article ol { margin: 0 0 18px 20px; }
.article ol li, .article ul li { margin-bottom: 6px; }

/* Heatmap cell */
.heat {
  width: 28px;
  height: 28px;
  display: inline-block;
  border: 1px solid var(--paper);
  vertical-align: middle;
}