/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
  --color-bg: #FDFCF9;
  --color-bg-alt: #F5F3EE;
  --color-surface: #FFFFFF;
  --color-text: #1B2430;
  --color-text-soft: #4A5568;
  --color-border: #E4E1D8;

  --color-teal: #2860A9;
  --color-teal-dark: #1E4F8C;
  --color-teal-light: #EAF2FB;

  --color-accent: #8AC64B;
  --color-accent-dark: #6FA735;
  --color-accent-light: #F0F8E7;

  --color-danger: #C4532B;

  /* Maturity ladder — same hue family, increasing depth */
  --level-1: #CFE8E7;
  --level-2: #8FC9C7;
  --level-3: #3F9C9A;
  --level-4: #0A5F5E;

  --font-body: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(27, 36, 48, 0.06);
  --shadow-md: 0 8px 24px rgba(27, 36, 48, 0.08);
  --shadow-lg: 0 16px 40px rgba(27, 36, 48, 0.12);

  --container-w: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #10161C;
    --color-bg-alt: #161D25;
    --color-surface: #182029;
    --color-text: #F1F3F5;
    --color-text-soft: #B7C0C9;
    --color-border: #2A333D;
    --color-teal-light: #16302F;
    --color-accent-light: #3A2E15;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.5em; font-weight: 700; }
p { margin: 0 0 1em; color: var(--color-text-soft); }
ul { padding-left: 1.2em; }
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}
.section {
  padding: 64px 0;
}
.section-alt { background: var(--color-bg-alt); }
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-teal);
  background: var(--color-teal-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(24px, 4vw, 34px);
  max-width: 760px;
}
.section-lead {
  font-size: 17px;
  max-width: 640px;
}
.mono-chain {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-teal-dark);
  background: var(--color-teal-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: inline-block;
  overflow-x: auto;
  max-width: 100%;
  white-space: nowrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-accent);
  color: #241503;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-secondary:hover { border-color: var(--color-teal); color: var(--color-teal-dark); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 30px; font-size: 16px; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(253, 252, 249, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}
@media (prefers-color-scheme: dark) {
  .site-header { background: rgba(16, 22, 28, 0.9); }
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.brand {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-header .brand-logo {
  display: block;
  width: 142px !important;
  max-width: 142px !important;
  height: 52px !important;
  max-height: 52px !important;
  object-fit: contain;
  flex: 0 0 142px;
}
.brand-course {
  border-left: 1px solid var(--color-border);
  padding-left: 12px;
  font-size: 11px;
  line-height: 1.25;
  color: var(--color-text-soft);
}
.brand-course strong {
  color: var(--color-teal-dark);
  font-size: 12px;
}
.header-nav {
  display: none;
  gap: 24px;
  font-size: 14px;
  font-weight: 600;
}
.header-nav a { text-decoration: none; color: var(--color-text-soft); }
.header-nav a:hover { color: var(--color-teal-dark); }
.header-cta { display: none; }
@media (min-width: 900px) {
  .header-nav { display: flex; }
  .header-cta { display: inline-flex; }
}
@media (max-width: 520px) {
  .site-header .brand-logo {
    width: 118px !important;
    max-width: 118px !important;
    height: 44px !important;
    max-height: 44px !important;
    flex-basis: 118px;
  }
  .brand-course { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding: 56px 0 48px;
}
.hero-grid {
  display: grid;
  gap: 40px;
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; align-items: center; }
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-teal-dark);
  background: var(--color-teal-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  letter-spacing: -0.01em;
}
.hero-sub {
  font-size: 18px;
  max-width: 560px;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 14px;
}
.hero-micro {
  font-size: 13.5px;
  color: var(--color-text-soft);
}
.hero-micro .dot { margin: 0 6px; opacity: 0.5; }

/* Hero diagram */
.flow-diagram {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
}
.flow-step + .flow-step { border-top: 1px dashed var(--color-border); }
.flow-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  color: #fff;
}
.flow-step:nth-child(1) .flow-num { background: var(--level-1); color: var(--color-teal-dark); }
.flow-step:nth-child(2) .flow-num { background: var(--level-2); color: #08403f; }
.flow-step:nth-child(3) .flow-num { background: var(--level-3); }
.flow-step:nth-child(4) .flow-num { background: var(--level-4); }
.flow-step h4 { margin: 0 0 2px; font-size: 15px; }
.flow-step p { margin: 0; font-size: 13.5px; }
.flow-caption {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: center;
  color: var(--color-text-soft);
}

/* ==========================================================================
   Checklist cards (Section 2)
   ========================================================================== */
.card-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .card-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
.check-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.check-card .icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  color: var(--color-teal);
}
.check-card p { margin: 0; color: var(--color-text); font-size: 15px; }
.callout {
  margin-top: 28px;
  border-left: 4px solid var(--color-accent);
  background: var(--color-accent-light);
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  font-size: 15.5px;
  color: var(--color-text);
}
.callout strong { color: var(--color-text); }

/* ==========================================================================
   Maturity staircase (Section 3)
   ========================================================================== */
.staircase {
  display: grid;
  gap: 16px;
  margin-top: 36px;
  grid-template-columns: 1fr;
}
@media (min-width: 800px) { .staircase { grid-template-columns: repeat(4, 1fr); align-items: end; } }
.stair-step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.stair-step .bar {
  height: 6px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.stair-step:nth-child(1) .bar { background: var(--level-1); width: 40%; }
.stair-step:nth-child(2) .bar { background: var(--level-2); width: 60%; }
.stair-step:nth-child(3) .bar { background: var(--level-3); width: 80%; }
.stair-step:nth-child(4) .bar { background: var(--level-4); width: 100%; }
.stair-step .tag {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}
.stair-step h4 { margin: 6px 0 8px; font-size: 17px; }
.stair-step p { font-size: 14px; margin: 0; }
.stair-step.is-primary {
  border-color: var(--color-teal);
  box-shadow: var(--shadow-md);
}
.stair-step.is-primary::before {
  content: "Bạn có thể đang ở đây";
  position: absolute;
  top: -12px;
  left: 16px;
  background: var(--color-teal);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}

/* ==========================================================================
   Two/three column lists (Section 4, 9)
   ========================================================================== */
.fit-grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) { .fit-grid { grid-template-columns: repeat(3, 1fr); } }
.fit-col {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
}
.fit-col h3 {
  font-size: 16px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fit-col.yes h3 { color: var(--color-teal-dark); }
.fit-col.no h3 { color: var(--color-text-soft); }
.fit-col.not h3 { color: var(--color-danger); }
.fit-col ul { list-style: none; padding: 0; margin: 0; }
.fit-col li {
  font-size: 14.5px;
  color: var(--color-text);
  padding: 8px 0 8px 26px;
  position: relative;
  border-top: 1px solid var(--color-border);
}
.fit-col li:first-child { border-top: none; }
.fit-col li::before {
  position: absolute;
  left: 0;
  top: 8px;
  font-weight: 800;
}
.fit-col.yes li::before { content: "✓"; color: var(--color-teal); }
.fit-col.no li::before { content: "–"; color: var(--color-text-soft); }
.fit-col.not li::before { content: "✕"; color: var(--color-danger); }

/* ==========================================================================
   Outcomes checklist (Section 5)
   ========================================================================== */
.outcome-grid {
  display: grid;
  gap: 14px;
  margin-top: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .outcome-grid { grid-template-columns: 1fr 1fr; } }
.outcome-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.outcome-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-teal-light);
  color: var(--color-teal-dark);
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.outcome-item p { margin: 0; font-size: 15px; color: var(--color-text); }

/* ==========================================================================
   Curriculum accordion (Section 6)
   ========================================================================== */
.curriculum-list {
  margin-top: 32px;
  display: grid;
  gap: 14px;
}
.curriculum-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.curriculum-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-weight: 700;
  font-size: 15.5px;
}
.curriculum-item > summary::-webkit-details-marker { display: none; }
.curriculum-item .lesson-tag {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-teal-dark);
  background: var(--color-teal-light);
  border-radius: 999px;
  padding: 4px 10px;
}
.curriculum-item summary .chev {
  margin-left: auto;
  transition: transform 0.2s ease;
  color: var(--color-text-soft);
  flex-shrink: 0;
}
.curriculum-item[open] summary .chev { transform: rotate(180deg); }
.curriculum-body {
  padding: 0 22px 22px 22px;
  border-top: 1px solid var(--color-border);
}
.curriculum-body p { margin-top: 14px; font-size: 14.5px; }
.curriculum-body .output-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: var(--color-accent-light);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Method steps (Section 7)
   ========================================================================== */
.method-grid {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}
@media (min-width: 860px) { .method-grid { grid-template-columns: 1fr 1fr; } }
.example-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 600;
}
.method-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: method;
}
.method-steps li {
  counter-increment: method;
  position: relative;
  padding: 10px 0 10px 42px;
  font-size: 15px;
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
}
.method-steps li:first-child { border-top: none; }
.method-steps li::before {
  content: counter(method);
  position: absolute;
  left: 0;
  top: 8px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-teal);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Brief document (Section 8)
   ========================================================================== */
.brief-panel {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}
@media (min-width: 900px) { .brief-panel { grid-template-columns: 1fr 1fr; } }
.doc-mock {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 26px;
}
.doc-mock .doc-title {
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 4px;
}
.doc-mock .doc-sub {
  font-size: 12.5px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
}
.doc-mock ol {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
}
.doc-mock li { padding: 6px 0; border-bottom: 1px dashed var(--color-border); }
.doc-mock li:last-child { border-bottom: none; }
.value-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.value-list li {
  font-size: 14.5px;
  padding: 10px 14px;
  background: var(--color-teal-light);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

/* ==========================================================================
   Tier comparison (Section 9)
   ========================================================================== */
.tier-grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 800px) { .tier-grid { grid-template-columns: 1fr 1fr; } }
.tier-card {
  border-radius: var(--radius-lg);
  padding: 26px;
  border: 1px solid var(--color-border);
}
.tier-card.tier-1 {
  background: var(--color-teal-dark);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.tier-card.tier-1 h3, .tier-card.tier-1 .tier-badge { color: #fff; }
.tier-card.tier-1 p, .tier-card.tier-1 li { color: rgba(255,255,255,0.85); }
.tier-card.tier-2 {
  background: var(--color-surface);
  opacity: 0.92;
}
.tier-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 10px;
  color: var(--color-text-soft);
}
.tier-card ul { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 8px; }
.tier-card li {
  font-size: 14.5px;
  padding-left: 22px;
  position: relative;
}
.tier-card li::before { content: "→"; position: absolute; left: 0; }

/* ==========================================================================
   Instructor (Section 10)
   ========================================================================== */
.instructor-card {
  display: grid;
  gap: 24px;
  margin-top: 32px;
  align-items: center;
}
@media (min-width: 780px) { .instructor-card { grid-template-columns: 200px 1fr; } }
.instructor-avatar {
  width: 140px;
  height: 210px;
  border-radius: var(--radius-md);
  object-fit: cover;
  object-position: center top;
  box-shadow: var(--shadow-md);
  margin: 0 auto;
}
.instructor-meta dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 14px 0 0; font-size: 14.5px; }
.instructor-meta dt { font-weight: 700; color: var(--color-text-soft); }
.instructor-meta dd { margin: 0; }
.placeholder-note {
  font-size: 13px;
  color: var(--color-text-soft);
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-top: 16px;
}

/* ==========================================================================
   Logistics (Section 11)
   ========================================================================== */
.info-grid {
  display: grid;
  gap: 14px;
  margin-top: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .info-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .info-grid { grid-template-columns: repeat(3, 1fr); } }
.info-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.info-item .label {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-teal-dark);
  margin-bottom: 6px;
}
.info-item .value { font-size: 15px; font-weight: 600; }

/* ==========================================================================
   FAQ (Section 12)
   ========================================================================== */
.faq-list { margin-top: 32px; display: grid; gap: 12px; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { margin-left: auto; transition: transform 0.2s ease; color: var(--color-text-soft); flex-shrink: 0; }
.faq-item[open] summary .chev { transform: rotate(180deg); }
.faq-body { padding: 0 20px 20px; }
.faq-body p { margin: 0; font-size: 14.5px; }

/* ==========================================================================
   Final CTA (Section 13)
   ========================================================================== */
.final-cta {
  background: var(--color-teal-dark);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
}
.final-cta h2 { color: #fff; font-size: clamp(22px, 4vw, 30px); }
.final-cta p { color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 24px; }
.final-cta .hero-ctas { justify-content: center; }
.final-cta .btn-secondary { border-color: rgba(255,255,255,0.4); color: #fff; }
.final-cta .btn-secondary:hover { border-color: #fff; }
.final-cta .hero-micro { color: rgba(255,255,255,0.7); }

/* ==========================================================================
   Registration form (Section: form)
   ========================================================================== */
.form-wrap {
  max-width: 640px;
  margin: 32px auto 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  margin-bottom: 6px;
}
.form-row .hint { font-weight: 400; color: var(--color-text-soft); font-size: 12.5px; }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px var(--color-teal-light);
}
.two-col { display: grid; gap: 18px; }
@media (min-width: 560px) { .two-col { grid-template-columns: 1fr 1fr; } }
.checkbox-group { display: grid; gap: 10px; }
.checkbox-row { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.checkbox-row input { margin-top: 3px; }
.form-consent { font-size: 12.5px; color: var(--color-text-soft); margin-top: 4px; }
.form-status {
  margin-top: 16px;
  font-size: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  display: none;
}
.form-status.visible { display: block; }
.form-status.success { background: var(--color-teal-light); color: var(--color-teal-dark); }
.form-status.error { background: #FBE7E1; color: var(--color-danger); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  font-size: 13px;
  color: var(--color-text-soft);
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { text-decoration: none; color: var(--color-text-soft); }
.footer-links a:hover { color: var(--color-teal-dark); }

/* ==========================================================================
   Sticky mobile CTA
   ========================================================================== */
.mobile-sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 -6px 20px rgba(0,0,0,0.08);
}
@media (min-width: 900px) { .mobile-sticky-cta { display: none; } }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

section[id] { scroll-margin-top: 80px; }