/* ==========================================================================
   Hausa AI Language Specialist — Portfolio
   Visual system: deep navy + clean white, subtle gold & blue accents
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --navy-900: #0A1628;
  --navy-800: #0F2038;
  --navy-700: #16304F;
  --navy-600: #1E3D63;
  --navy-100: #DDE7F2;

  --white: #FFFFFF;
  --off-white: #F6F8FB;
  --border-light: #E2E8F0;

  --ink: #1C2B3A;          /* text on light */
  --ink-soft: #4A5A6B;
  --ink-inverse: #E8EEF6;  /* text on dark */
  --ink-inverse-soft: #A9BCCC;

  --gold: #C9A227;
  --gold-strong: #A8871D;

  --blue: #2E6FB5;
  --blue-strong: #1F5591;

  --ok: #2F855A;

  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.08);
  --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.10);
  --header-h: 64px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", "Noto Sans Arabic", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--off-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  line-height: 1.25;
  margin: 0 0 0.6em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

a { color: var(--blue); }

code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.9em;
  background: rgba(10, 22, 40, 0.07);
  padding: 0.1em 0.4em;
  border-radius: 4px;
}

ul, ol { margin: 0 0 1em; padding-left: 1.3em; }

/* ---------- Accessibility helpers ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--gold);
  color: var(--navy-900);
  padding: 0.6rem 1rem;
  font-weight: 600;
  z-index: 100;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Layout ---------- */
.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

.section { padding: 4.5rem 0; }
.section-light { background: var(--off-white); color: var(--ink); }
.section-dark {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: var(--ink-inverse);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.4rem;
}
.eyebrow-gold { color: var(--gold-strong); }
.section-dark .eyebrow { color: var(--gold); }

.section-title { font-size: clamp(1.6rem, 3.4vw, 2.3rem); margin-bottom: 1rem; }
.section-title-light { color: var(--white); }

.section-intro {
  max-width: 46rem;
  font-size: 1.08rem;
  color: var(--ink-soft);
  margin-bottom: 2.2rem;
}
.section-dark .section-intro { color: var(--ink-inverse-soft); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.97rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease,
    border-color 0.15s ease, transform 0.15s ease;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--gold);
  color: var(--navy-900);
}
.btn-primary:hover { background: var(--gold-strong); color: var(--navy-900); }

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}
.btn-secondary:hover { border-color: var(--white); background: rgba(255, 255, 255, 0.08); }

.btn-whatsapp {
  background: #1FA855;
  color: var(--white);
}
.btn-whatsapp:hover { background: #178A45; color: var(--white); }
.btn-whatsapp[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 22, 40, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--white);
  font-weight: 700;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--navy-700);
  color: var(--gold);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  border: 1px solid rgba(201, 162, 39, 0.5);
}
.brand-text { font-size: 0.95rem; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--ink-inverse-soft);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px;
  transition: color 0.15s ease, background-color 0.15s ease;
}
.nav-menu a:hover { color: var(--white); background: rgba(255, 255, 255, 0.06); }
.nav-menu a.active { color: var(--gold); }
.nav-menu .nav-cta {
  color: var(--navy-900);
  background: var(--gold);
  font-weight: 600;
  margin-left: 0.5rem;
}
.nav-menu .nav-cta:hover { background: var(--gold-strong); color: var(--navy-900); }
.nav-menu .nav-cta.active { color: var(--navy-900); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 480px at 82% -10%, rgba(46, 111, 181, 0.22), transparent 60%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: var(--ink-inverse);
  padding: 5.5rem 0 4rem;
}
.hero-inner { max-width: 50rem; }
.hero .eyebrow { color: var(--gold); }

.hero-title {
  font-size: clamp(2.1rem, 5.2vw, 3.2rem);
  color: var(--white);
  margin-bottom: 0.7rem;
}

.hero-sub {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.02em;
  margin-bottom: 1.2rem;
}

.hero-text {
  font-size: 1.05rem;
  color: var(--ink-inverse-soft);
  max-width: 44rem;
  margin-bottom: 1.8rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 2.4rem; }

.cred-row {
  list-style: none;
  margin: 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.7rem 1.4rem;
}
.cred-item {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.9rem;
  color: var(--ink-inverse);
  font-weight: 500;
}
.cred-icon { color: var(--gold); font-size: 0.7rem; line-height: 1.9; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 2.5rem;
}
.about-main p { font-size: 1.03rem; }

.about-side {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  align-self: start;
}
.about-side h3 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--blue); }

.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li {
  position: relative;
  padding: 0.32rem 0 0.32rem 1.6rem;
  font-size: 0.95rem;
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.3rem;
  color: var(--ok);
  font-weight: 700;
}
.check-list-dark li::before { color: var(--gold); }

/* ---------- Hausa AI Evaluation: case cards ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
}
.case-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--gold);
  display: flex;
  flex-direction: column;
}
.case-card-wide { grid-column: 1 / -1; }

.case-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.1rem;
}
.case-badge {
  background: var(--navy-800);
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
}
.case-category {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.case-heading { font-size: 1rem; margin-bottom: 0.8rem; }

.case-variants {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
  margin-bottom: 1rem;
}
.variant {
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}
.variant p {
  margin: 0.35rem 0 0;
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 600;
}
.variant-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.variant-original {
  background: #FBF1F0;
  border: 1px solid #EAD3D0;
}
.variant-original .variant-label { color: var(--bad); }
.variant-preferred {
  background: #F2F8F3;
  border: 1px solid #D2E6D6;
}
.variant-preferred .variant-label { color: var(--ok); }

.case-note {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin-top: auto;
}
.rationale-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue);
  margin-bottom: 0.3rem;
}

/* Chips */
.chip-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.chip-list li {
  background: var(--navy-100);
  color: var(--navy-800);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
}
.chip-list-light li {
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink-inverse);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

/* Evaluation principle */
.principle {
  margin: 0;
  padding: 1.1rem 1.3rem;
  background: linear-gradient(90deg, rgba(201, 162, 39, 0.1), rgba(201, 162, 39, 0.02));
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.principle p {
  margin: 0 0 0.3rem;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  font-style: italic;
  color: var(--navy-800);
}
.principle cite {
  font-style: normal;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-strong);
}

/* ---------- Workflow (horizontal & vertical) ---------- */
.workflow-wrap, .taxonomy-wrap { margin-top: 2.6rem; }
.workflow-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}
.section-dark .workflow-title { color: var(--gold); }

.workflow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.6rem;
  counter-reset: step;
}
.workflow-step {
  counter-increment: step;
  position: relative;
  background: var(--white);
  color: var(--navy-800);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 0.7rem 1.1rem 0.7rem 2.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
.workflow-step::before {
  content: counter(step);
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.35rem;
  height: 1.35rem;
  display: grid;
  place-items: center;
  background: var(--gold);
  color: var(--navy-900);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
}
.section-dark .workflow-step {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--ink-inverse);
}
.section-dark .workflow-step::before { background: var(--gold); color: var(--navy-900); }

.workflow-vertical {
  flex-direction: column;
  align-items: stretch;
}
.workflow-vertical .workflow-step { padding: 0.7rem 1.1rem 0.7rem 2.6rem; }

/* ---------- Placeholder boxes (obvious & replaceable) ---------- */
.placeholder-box {
  position: relative;
  background: repeating-linear-gradient(
    -45deg,
    rgba(10, 22, 40, 0.035),
    rgba(10, 22, 40, 0.035) 12px,
    rgba(10, 22, 40, 0.055) 12px,
    rgba(10, 22, 40, 0.055) 24px
  );
  border: 2px dashed var(--blue);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0;
}
.placeholder-tag {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}
.placeholder-inline {
  font-size: 1.05rem;
  font-weight: 600;
  background: repeating-linear-gradient(
    -45deg,
    rgba(10, 22, 40, 0.035),
    rgba(10, 22, 40, 0.035) 12px,
    rgba(10, 22, 40, 0.055) 12px,
    rgba(10, 22, 40, 0.055) 24px
  );
  border: 2px dashed var(--blue);
  border-radius: var(--radius);
  padding: 0.5rem 0.8rem;
  margin: 0;
}
.contact-value {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
  word-break: break-word;
}

/* ---------- Speech & transcription ---------- */
.audio-panel {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.6rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.8rem;
}
.audio-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1.2rem;
  margin-bottom: 0.9rem;
}
.audio-title { font-size: 1.05rem; margin: 0; }
.audio-note { margin: 0; font-size: 0.92rem; color: var(--ink-soft); }
.audio-player-slot audio { width: 100%; }
.audio-missing {
  margin: 0.8rem 0 0;
  padding: 0.8rem 1rem;
  background: #FFF8E1;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  font-size: 0.92rem;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.3rem;
  margin-bottom: 2rem;
}
.compare-block {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  border-top: 3px solid var(--blue);
  box-shadow: var(--shadow-sm);
}
.compare-gold { border-top-color: var(--gold); }
.compare-annotation { border-top-color: var(--navy-600); }
.compare-title { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.07em; }

.transcript-text {
  font-size: 0.98rem;
  line-height: 1.75;
  margin: 0;
}
.transcript-text + .transcript-text {
  margin-top: 0.6rem;
}
.transcript-note {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 0.8rem 0 0;
}

/* Annotation entries */
.anno-item {
  margin-top: 0.75rem;
  padding: 0.65rem 0 0.65rem 0.9rem;
  border-left: 3px solid var(--border-light);
}
.anno-item:first-of-type { margin-top: 1rem; }
.anno-pair {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}
.anno-label {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-600);
  margin-right: 0.15rem;
}
.anno-type {
  margin: 0.2rem 0 0;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blue-strong);
}
.anno-why {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.taxonomy-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.9rem;
}
.chip-list-light { margin-bottom: 0; }

.callout {
  margin-top: 2.2rem;
  padding: 1.2rem 1.5rem;
  background: var(--navy-800);
  color: var(--ink-inverse);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.callout p { margin: 0; font-size: 1.02rem; }

/* ---------- Localization ---------- */
.loc-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.4rem;
}
.loc-main p { color: var(--ink-inverse-soft); font-size: 1.03rem; }
.loc-list-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--gold);
  margin-top: 1.4rem;
}

/* dark-section placeholder boxes need lighter ink */
.section-dark .placeholder-box {
  color: var(--ink-inverse-soft);
  background: repeating-linear-gradient(
    -45deg,
    rgba(255, 255, 255, 0.04),
    rgba(255, 255, 255, 0.04) 12px,
    rgba(255, 255, 255, 0.07) 12px,
    rgba(255, 255, 255, 0.07) 24px
  );
}

/* ---------- WhatsApp demo ---------- */
.demo-panel {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.6rem;
  align-items: start;
  margin-bottom: 1.8rem;
}
.demo-cta-wrap, .demo-steps {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.demo-steps h3 { font-size: 1rem; }
.steps-list { margin: 0; padding-left: 1.3em; }
.steps-list li { padding: 0.25rem 0; font-size: 0.97rem; }
.demo-cta-note {
  margin: 0.9rem 0 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.privacy-note {
  background: #FFF8E1;
  border: 1px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.5rem;
}
.privacy-note h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold-strong);
}
.privacy-note p { margin: 0; font-size: 0.95rem; }

/* ---------- Resume ---------- */
.resume-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.4rem;
}
.resume-hint { font-size: 0.88rem; color: var(--ink-inverse-soft); }

.timeline-wrap { margin-bottom: 2.4rem; }
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: rgba(255, 255, 255, 0.18);
}
.timeline-item {
  position: relative;
  padding: 0 0 1.4rem 2.2rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  border: 3px solid var(--navy-900);
}
.timeline-era {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.2rem;
}
.timeline-item h4 { color: var(--white); font-size: 1.05rem; margin-bottom: 0.15rem; }
.timeline-item p { margin: 0; color: var(--ink-inverse-soft); font-size: 0.95rem; }

/* ---------- Resume detail cards ---------- */
.caci-card, .tech-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.7rem;
  margin-bottom: 1.6rem;
}
.tech-card { margin-bottom: 0; }
.caci-title { color: var(--white); font-size: 1.2rem; margin-bottom: 0.2rem; }
.caci-meta {
  font-size: 0.88rem;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 1rem;
}
.caci-sub {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-inverse-soft);
}
.two-col-list {
  columns: 2;
  column-gap: 2rem;
  margin: 0;
  padding-left: 1.2em;
}
.two-col-list li {
  padding: 0.2rem 0;
  font-size: 0.95rem;
  color: var(--ink-inverse);
  break-inside: avoid;
}

.tech-title { color: var(--white); font-size: 1.1rem; }
.tech-card p { color: var(--ink-inverse-soft); font-size: 0.97rem; }
.tech-note { margin-bottom: 0; }
.tech-note strong { color: var(--gold); }

/* ---------- Contact ---------- */
.contact-inner { max-width: 52rem; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.2rem;
}
.contact-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-sm);
}
.contact-card h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue);
  margin-bottom: 0.55rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-900);
  color: var(--ink-inverse-soft);
  padding: 2.4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-inner { text-align: center; }
.footer-inner p { margin: 0 0 0.4rem; font-size: 0.95rem; }
.footer-inner strong { color: var(--white); }
.footer-meta { font-size: 0.85rem; }
.footer-copy { font-size: 0.8rem; margin-bottom: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .case-grid { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .about-grid, .loc-grid { grid-template-columns: 1fr; }
  .demo-panel { grid-template-columns: 1fr; }
  .two-col-list { columns: 1; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--navy-900);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: 0.5rem 1.25rem 1rem;
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 0.8rem 0.75rem; font-size: 1rem; }
  .nav-menu .nav-cta { margin: 0.5rem 0 0; text-align: center; }

  .hero { padding: 4rem 0 3.2rem; }
  .section { padding: 3.4rem 0; }
  .case-variants { grid-template-columns: 1fr; }
  .workflow { flex-direction: column; }
}

@media (max-width: 420px) {
  .brand-text { display: none; }
  .container { width: calc(100% - 2rem); }
}