/* ==========================================================================
   zerolook — Marketing site styles
   Dark navy surfaces, signal amber accents, generous editorial spacing.
   ========================================================================== */

@import url('./colors_and_type.css');

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-app);
  color: var(--fg-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  max-width: 100%;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

::selection { background: var(--amber-400); color: var(--navy-900); }

/* ---- Layout primitives -------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---- Top nav ------------------------------------------------------------ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 28, 48, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-hairline);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-brand img { width: 24px; height: 24px; }
.nav-brand span {
  font: 700 22px/1 var(--font-sans);
  letter-spacing: -0.04em;
  color: var(--fg-primary);
}
.nav-links {
  display: flex;
  gap: 28px;
  margin-left: 8px;
}
.nav-links a {
  font: 500 13.5px/1 var(--font-sans);
  color: var(--fg-secondary);
  letter-spacing: -0.005em;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-links a:hover { color: var(--fg-primary); }
.nav-links a.is-active { color: var(--fg-primary); }
.nav-cta { margin-left: auto; }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: var(--r-3);
  border: 1px solid transparent;
  font: 500 14px/1 var(--font-sans);
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.btn-primary {
  background: var(--amber-400);
  color: var(--navy-900);
  box-shadow: 0 0 0 1px rgba(246, 177, 12, 0.4), 0 0 28px rgba(246, 177, 12, 0.18);
}
.btn-primary:hover { background: var(--amber-300); }
.btn-primary:active { background: var(--amber-500); }
.btn-secondary {
  background: transparent;
  color: var(--fg-primary);
  border-color: var(--border-default);
}
.btn-secondary:hover { border-color: var(--border-strong); background: rgba(199, 214, 234, 0.04); }
.btn-ghost {
  background: transparent;
  color: var(--fg-secondary);
}
.btn-ghost:hover { color: var(--fg-primary); }
.btn-sm { height: 36px; padding: 0 14px; font-size: 13px; }

.btn-arrow::after {
  content: "→";
  font-family: var(--font-sans);
  margin-left: 2px;
  transition: transform var(--dur-fast) var(--ease-out);
}
.btn-arrow:hover::after { transform: translateX(3px); }

/* ---- Type helpers ------------------------------------------------------- */
.eyebrow {
  font: 600 13px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-300);
}
.eyebrow-amber { color: var(--amber-300); }

.display {
  font: 600 clamp(40px, 5.5vw, 76px) / 1.04 var(--font-sans);
  letter-spacing: -0.035em;
  margin: 0;
  color: var(--fg-primary);
  text-wrap: balance;
}
.display em {
  font-family: inherit;
  font-style: normal;
  font-weight: inherit;
  letter-spacing: inherit;
}
.h1 {
  font: 600 clamp(34px, 4vw, 52px) / 1.08 var(--font-sans);
  letter-spacing: -0.03em;
  margin: 0;
  text-wrap: balance;
}
.h2 {
  font: 600 clamp(28px, 3vw, 38px) / 1.15 var(--font-sans);
  letter-spacing: -0.025em;
  margin: 0;
  text-wrap: balance;
}
.h3 {
  font: 600 22px/1.25 var(--font-sans);
  letter-spacing: -0.015em;
  margin: 0;
}
.lead {
  font: 400 19px/1.55 var(--font-sans);
  color: var(--fg-secondary);
  margin: 0;
  text-wrap: pretty;
}
.body {
  font: 400 15.5px/1.6 var(--font-sans);
  color: var(--fg-secondary);
  margin: 0;
  text-wrap: pretty;
}
.body-sm {
  font: 400 13.5px/1.6 var(--font-sans);
  color: var(--fg-tertiary);
  margin: 0;
}
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.amber { color: var(--amber-300); }
.teal { color: var(--teal-400); }

/* ---- Sections ----------------------------------------------------------- */
section { position: relative; }
.section { padding: 112px 0; border-bottom: 1px solid var(--border-hairline); }
.section-sm { padding: 72px 0; border-bottom: 1px solid var(--border-hairline); }
.section-lg { padding: 144px 0; border-bottom: 1px solid var(--border-hairline); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head .eyebrow { margin-bottom: 18px; display: block; }
.section-head .h2 { margin-bottom: 16px; }

/* ---- Hero scaffolding --------------------------------------------------- */
.hero {
  padding: 112px 0 96px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-hairline);
}
.hero-glow {
  position: absolute;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 1400px;
  height: 800px;
  background: radial-gradient(ellipse at center, rgba(246, 177, 12, 0.12), transparent 60%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 242, 236, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 242, 236, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
}
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.92;
  /* Fade canvas left side so hero text remains readable on smaller screens. */
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.35) 22%, black 55%, black 100%);
          mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.35) 22%, black 55%, black 100%);
}
.hero .hero-glow,
.hero .hero-grid { z-index: 1; }
.hero > .container { position: relative; z-index: 2; }
@media (max-width: 900px) {
  .hero-canvas {
    opacity: 0.45;
    -webkit-mask-image: radial-gradient(ellipse at 70% 35%, black 0%, transparent 75%);
            mask-image: radial-gradient(ellipse at 70% 35%, black 0%, transparent 75%);
  }
}

/* ---- Cards -------------------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-3);
  padding: 28px;
}
.card-lg { padding: 40px; border-radius: var(--r-4); }

/* ---- Footer ------------------------------------------------------------- */
.footer {
  background: var(--navy-950);
  padding: 80px 0 32px;
  border-top: 1px solid var(--border-hairline);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand img { width: 26px; height: 26px; margin-bottom: 16px; }
.footer-brand .name {
  font: 700 22px/1 var(--font-sans);
  letter-spacing: -0.04em;
  color: var(--fg-primary);
  display: block;
  margin-bottom: 14px;
}
.footer-brand p {
  font: 400 13.5px/1.6 var(--font-sans);
  color: var(--fg-tertiary);
  max-width: 280px;
  margin: 0;
}
.footer-col-title {
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font: 400 13.5px/1 var(--font-sans);
  color: var(--fg-secondary);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover { color: var(--fg-primary); }
.footer-meta {
  padding-top: 28px;
  border-top: 1px solid var(--border-hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font: 400 11px/1 var(--font-mono);
  color: var(--fg-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.footer-meta .links { display: flex; gap: 28px; }
.footer-meta a:hover { color: var(--fg-secondary); }

/* ---- Founder past-companies strip --------------------------------------- */
.founder-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--border-hairline);
}
.founder-logos img {
  height: 24px;
  width: auto;
  opacity: 0.95;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.founder-logos img:hover {
  opacity: 1;
}
.founder-chip {
  font: 500 12px/1 var(--font-sans);
  color: var(--fg-secondary);
  letter-spacing: 0.02em;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-pill);
  padding: 6px 12px;
}

/* ---- Look-to-book calculator ------------------------------------------- */
.calc-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.calc-inputs {
  padding: 32px 36px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-3);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
}

.calc-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-hairline);
}
.calc-row:first-child { padding-top: 6px; }
.calc-row:last-child { border-bottom: none; padding-bottom: 6px; }

.calc-row label {
  font: 500 12.5px/1.3 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
  padding-top: 14px;
}

.calc-control { display: flex; flex-direction: column; gap: 8px; min-width: 0; }

.calc-control input {
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--r-2);
  color: var(--fg-primary);
  font: 500 21px/1.2 var(--font-sans);
  font-variant-numeric: tabular-nums;
  padding: 12px 16px;
  width: 160px;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.calc-control input:focus {
  outline: none;
  border-color: var(--amber-400);
  box-shadow: 0 0 0 3px rgba(246,177,12,0.15);
}

.calc-input-suffix {
  display: inline-flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--r-2);
  width: 160px;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.calc-input-suffix:focus-within {
  border-color: var(--amber-400);
  box-shadow: 0 0 0 3px rgba(246,177,12,0.15);
}
.calc-input-suffix input {
  border: none;
  background: transparent;
  padding: 12px 4px 12px 16px;
  width: auto;
  flex: 1;
  min-width: 0;
}
.calc-input-suffix input:focus { box-shadow: none; }
.calc-input-suffix span {
  padding-right: 16px;
  font: 500 16px/1 var(--font-mono);
  color: var(--fg-tertiary);
}

.calc-hint {
  margin: 0;
  font: 400 13.5px/1.5 var(--font-sans);
  color: var(--fg-tertiary);
}

/* Wider input variants (used by the metasearch tab, where values reach 10⁹) */
.calc-control .calc-input-wide { width: 100%; max-width: 280px; }
.calc-input-prefix {
  display: inline-flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--r-2);
  width: 100%;
  max-width: 280px;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.calc-input-prefix:focus-within {
  border-color: var(--amber-400);
  box-shadow: 0 0 0 3px rgba(246,177,12,0.15);
}
.calc-input-prefix > span {
  padding-left: 16px;
  font: 500 16px/1 var(--font-mono);
  color: var(--fg-tertiary);
  white-space: nowrap;
}
.calc-input-prefix > input {
  border: none;
  background: transparent;
  padding: 12px 16px 12px 8px;
  flex: 1;
  width: auto;
  min-width: 0;
}
.calc-input-prefix > input:focus { box-shadow: none; }

/* ---- Calculator: top-level mode toggle (agentic vs metasearch) -------- */
.calc-mode {
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.calc-mode-eyebrow {
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
}
.calc-mode-tabs {
  display: inline-flex;
  align-self: flex-start;
  gap: 4px;
  padding: 5px;
  background: rgba(199, 214, 234, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}
.calc-mode-tab {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--fg-tertiary);
  font: 500 14px/1 var(--font-sans);
  letter-spacing: -0.005em;
  padding: 10px 18px;
  border-radius: 7px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.calc-mode-tab:hover { color: var(--fg-primary); }
.calc-mode-tab.is-active {
  background: rgba(246, 177, 12, 0.13);
  border-color: rgba(246, 177, 12, 0.36);
  color: var(--fg-primary);
}
.calc-mode-tab:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: 2px;
}

/* ---- Calculator: per-tab head row ------------------------------------- */
.calc-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.calc-head-text { min-width: 0; }
.calc-head-text .eyebrow { display: block; margin-bottom: 14px; }
.calc-head-text .h2 { margin: 0; }
.calc-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.calc-action,
.calc-reset {
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-pill);
  color: var(--fg-tertiary);
  font: 500 12px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 10px 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.calc-action:hover,
.calc-reset:hover {
  color: var(--amber-300);
  border-color: var(--amber-400);
}
.calc-action.is-copied {
  color: var(--amber-300);
  border-color: var(--amber-400);
}
.calc-action:focus-visible,
.calc-reset:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: 2px;
}
.calc-action-icon { font-size: 13px; letter-spacing: 0; }

.calc-tab[hidden] { display: none; }

/* ---- Calculator: example query banner --------------------------------- */
.calc-example {
  margin-bottom: 32px;
  padding: 26px 36px;
  border-left: 2px solid var(--amber-400);
  background: rgba(246, 177, 12, 0.04);
  border-radius: 0 var(--r-3) var(--r-3) 0;
  max-width: 860px;
}
.calc-example-eyebrow {
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-300);
  margin-bottom: 12px;
}
.calc-example-quote {
  font: 400 clamp(22px, 2.6vw, 30px)/1.3 var(--font-serif);
  font-style: italic;
  color: var(--fg-primary);
  letter-spacing: -0.01em;
  margin: 0;
}

/* ---- Calculator: layout overrides for the new grid -------------------- */
.calc-grid-2 { grid-template-columns: 1fr 1fr; }
.calc-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

/* ---- Calculator: result panels ---------------------------------------- */
.calc-panel {
  padding: 28px 32px;
  border-radius: var(--r-3);
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.28);
}
.calc-panel-gold {
  background: linear-gradient(160deg, rgba(246,177,12,0.10), rgba(246,177,12,0.02));
  border-color: rgba(246, 177, 12, 0.34);
}
.calc-panel-info {
  background: linear-gradient(160deg, rgba(94, 183, 173, 0.10), rgba(94, 183, 173, 0.02));
  border-color: rgba(94, 183, 173, 0.30);
}
.calc-panel-cost[data-channel="airline"] {
  background: linear-gradient(160deg, rgba(198, 82, 68, 0.13), rgba(198, 82, 68, 0.02));
  border-color: rgba(198, 82, 68, 0.32);
}
.calc-panel-cost[data-channel="gds"] {
  background: linear-gradient(160deg, rgba(94, 183, 173, 0.10), rgba(94, 183, 173, 0.02));
  border-color: rgba(94, 183, 173, 0.32);
}

.calc-panel-eyebrow {
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-300);
  margin-bottom: 18px;
}
.calc-panel-info .calc-panel-eyebrow { color: var(--teal-300); }
.calc-panel-cost[data-channel="airline"] .calc-panel-eyebrow { color: #E89B8A; }
.calc-panel-cost[data-channel="gds"] .calc-panel-eyebrow { color: var(--teal-300); }

.calc-panel-num {
  font: 600 clamp(40px, 5vw, 60px)/1 var(--font-sans);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.025em;
  color: var(--amber-300);
}
.calc-panel-num-info { color: var(--teal-300); }
.calc-panel-num-cost {
  color: var(--fg-primary);
  font-size: clamp(34px, 4.2vw, 50px);
}

.calc-panel-sub {
  margin-top: 14px;
  font: 400 15px/1.4 var(--font-sans);
  color: var(--fg-secondary);
}
.calc-panel-sub .mono { color: var(--fg-primary); }
.calc-panel-sub-faint {
  margin-top: 6px;
  font: 400 13px/1.4 var(--font-mono);
  color: var(--fg-tertiary);
}
.calc-panel-formula {
  margin: 22px 0 0;
  font: 400 13px/1.5 var(--font-mono);
  color: var(--fg-tertiary);
}

/* Pricing assumptions (inside cost panel) */
.calc-panel-section {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--border-hairline);
}
.calc-pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 12px;
}
.calc-pricing-label {
  display: block;
  font: 400 12.5px/1.35 var(--font-sans);
  color: var(--fg-tertiary);
  margin-bottom: 8px;
  min-height: 2.7em;
}

.calc-inline-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.32);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-2);
  color: var(--fg-primary);
  font: 500 15px/1.3 var(--font-mono);
  font-variant-numeric: tabular-nums;
  padding: 9px 12px;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.calc-inline-input:focus {
  outline: none;
  border-color: var(--amber-400);
  box-shadow: 0 0 0 3px rgba(246,177,12,0.15);
}
.calc-inline-input-prefix {
  display: inline-flex;
  align-items: center;
  width: 100%;
  background: rgba(0, 0, 0, 0.32);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-2);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.calc-inline-input-prefix:focus-within {
  border-color: var(--amber-400);
  box-shadow: 0 0 0 3px rgba(246,177,12,0.15);
}
.calc-inline-input-prefix > span {
  padding: 0 4px 0 12px;
  color: var(--fg-tertiary);
  font: 500 14px/1 var(--font-mono);
}
.calc-inline-input-bare {
  border: none;
  background: transparent;
  padding: 9px 12px 9px 4px;
  flex: 1;
  min-width: 0;
}
.calc-inline-input-bare:focus { box-shadow: none; border: none; }

/* Breakdown rows shared by all panels */
.calc-panel-breakdown {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.calc-breakdown-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font: 400 13.5px/1.4 var(--font-sans);
  color: var(--fg-tertiary);
}
.calc-breakdown-row > span.mono { color: var(--fg-secondary); }
.calc-breakdown-row-total {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--border-hairline);
  color: var(--fg-secondary);
}
.calc-breakdown-row-total > span.mono { color: var(--fg-primary); }
.calc-breakdown-row-gold { color: var(--fg-secondary); }
.calc-breakdown-row-gold > span.mono { color: var(--amber-300); font-weight: 500; }

/* ---- Calculator: channel toggle (within agentic right column) -------- */
.calc-subeyebrow {
  display: block;
  font: 500 10.5px/1 var(--font-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
  margin-bottom: 12px;
}
.calc-subeyebrow-faint { opacity: 0.85; }

.calc-channel-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  background: rgba(199, 214, 234, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}
.calc-channel-tab {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 12px 14px;
  text-align: left;
  cursor: pointer;
  color: var(--fg-tertiary);
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.calc-channel-tab:hover { color: var(--fg-secondary); }
.calc-channel-tab.is-active {
  background: rgba(199, 214, 234, 0.07);
  border-color: var(--border-subtle);
  color: var(--fg-primary);
}
.calc-channel-tab:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: 2px;
}
.calc-channel-kicker {
  display: block;
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.65;
  margin-bottom: 4px;
}
.calc-channel-name { display: block; font: 500 15px/1.2 var(--font-sans); }
.calc-channel-note {
  margin-top: 10px;
  font: 400 12.5px/1.5 var(--font-sans);
  color: var(--fg-tertiary);
}

/* ---- Calculator: "other channel" / "currently captured" summary row -- */
.calc-other {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(199, 214, 234, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-3);
}
.calc-other-eyebrow {
  font: 500 10.5px/1 var(--font-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
}
.calc-other-text {
  margin-top: 4px;
  font: 400 13.5px/1.45 var(--font-sans);
  color: var(--fg-secondary);
}
.calc-other-value {
  font: 500 20px/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--fg-primary);
  white-space: nowrap;
}

/* ---- Calculator: footnote -------------------------------------------- */
.calc-footnote {
  margin-top: 32px;
  font: 400 13.5px/1.6 var(--font-sans);
  color: var(--fg-tertiary);
  text-wrap: pretty;
}
.calc-footnote a {
  color: rgba(246, 177, 12, 0.78);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.calc-footnote a:hover { color: var(--amber-300); }

/* Focus-visible rings on text inputs (rely on wrapper for visual ring) */
.calc-control input:focus-visible,
.calc-inline-input:focus-visible { outline: none; }

@media (max-width: 880px) {
  .calc-grid,
  .calc-grid-2 { grid-template-columns: 1fr; }
  .calc-row { grid-template-columns: 1fr; gap: 8px; padding: 14px 0; }
  .calc-row label { padding-top: 0; }
  .calc-pricing-grid { grid-template-columns: 1fr; }
  .calc-channel-tabs { grid-template-columns: 1fr; }
  .calc-head { gap: 14px; }
  .calc-example { padding: 20px 22px; }
  .calc-panel { padding: 22px 22px; }
  .calc-inputs { padding: 22px 22px; }
  .calc-mode-tabs { width: 100%; }
  .calc-mode-tab { flex: 1; }
}

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid .footer-brand { grid-column: span 2; }
  .section, .section-lg { padding: 80px 0; }
  .hero { padding: 80px 0 64px; }
  .footer-meta { flex-direction: column; align-items: flex-start; }
}

/* ---- Mobile: collapse inline-styled multi-column grids to single column - */
@media (max-width: 880px) {
  .container [style*="grid-template-columns: repeat(4"],
  .container [style*="grid-template-columns: repeat(3"],
  .container [style*="grid-template-columns: repeat(2"],
  .container [style*="grid-template-columns: 1fr 1fr"],
  .container [style*="grid-template-columns: 1.4fr 1fr"],
  .container [style*="grid-template-columns: 1.6fr 1fr"],
  .container [style*="grid-template-columns: 160px 1fr"] {
    grid-template-columns: 1fr !important;
  }
  /* Era / booking grids: kill the leftmost border so single-column doesn't look boxed */
  .container [style*="grid-template-columns: repeat(4"][style*="border-left"],
  .container [style*="grid-template-columns: repeat(3"][style*="border-left"] {
    border-left: none !important;
    border-top: none !important;
  }
  /* Section padding tighter on phones */
  .container,
  .container-narrow { padding: 0 20px; }
  .nav-inner { padding: 0 20px; gap: 12px; }
  /* Hero text scales tighter; canvas gets a softer mobile mask */
  .hero { padding: 56px 0 56px; }
  .display { font-size: clamp(34px, 9vw, 48px) !important; }
  .h2     { font-size: clamp(26px, 7vw, 34px) !important; }

  /* Flex CTA cards: stack text + button vertically and tighten padding */
  .card-lg[style*="display: flex"] {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 24px !important;
    padding: 36px 28px !important;
  }
  .card-lg[style*="display: flex"] > div[style*="flex: 1"] {
    width: 100%;
  }
}