/* ==========================================================================
   chimneyservicehyderabad.in — Design System
   Mobile-first, no framework dependency
   ========================================================================== */

:root {
  /* Brand palette — warm steel / flame accent, not a generic "local service" blue */
  --color-primary: #1b3a4b;      /* deep steel blue-grey — chimney/metal feel */
  --color-primary-dark: #12262f;
  --color-accent: #e8622c;       /* flame orange — CTAs */
  --color-accent-dark: #c94f1f;
  --color-accent-light: #fdece2;
  --color-ink: #1c2226;
  --color-body: #3f484d;
  --color-muted: #6b757b;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7f8;
  --color-bg-dark: #12262f;
  --color-border: #e1e6e8;
  --color-success: #1e7d4c;
  --color-whatsapp: #25d366;

  --font-heading: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 3px rgba(18, 38, 47, 0.08);
  --shadow-md: 0 6px 20px rgba(18, 38, 47, 0.10);
  --shadow-lg: 0 12px 36px rgba(18, 38, 47, 0.14);

  --container-width: 1140px;
  --header-height: 64px;
  --mobile-cta-height: 56px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
  padding-bottom: var(--mobile-cta-height);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  line-height: 1.25;
  margin: 0 0 0.6em;
  font-weight: 600;
}

h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.15rem, 3vw, 1.35rem); }

p { margin: 0 0 1em; }

ul, ol { padding-left: 1.25em; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 56px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--dark {
  background: var(--color-bg-dark);
  color: #cfd9dd;
}

.section--dark h2, .section--dark h3 {
  color: #ffffff;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 36px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section-header p {
  color: var(--color-muted);
  font-size: 1.05rem;
}

/* ---------- Buttons / CTAs ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  min-height: 48px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255,255,255,0.55);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  color: #ffffff;
  border-color: #ffffff;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #ffffff;
}

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #ffffff;
}

.btn-whatsapp:hover {
  background: #1fb855;
  color: #ffffff;
}

.btn-block {
  width: 100%;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-ink);
  line-height: 1.2;
}

.brand__mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.brand__text-sub {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.header-cta {
  display: none;
}

.header-call {
  display: none;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  display: none;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.main-nav {
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: #ffffff;
  transform: translateX(100%);
  transition: transform 0.25s ease;
  overflow-y: auto;
  z-index: 99;
  padding: 8px 0 24px;
}

.main-nav.is-open {
  transform: translateX(0);
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav > ul > li {
  border-bottom: 1px solid var(--color-border);
}

.main-nav a, .main-nav .nav-toplevel {
  display: block;
  padding: 16px 20px;
  font-weight: 600;
  color: var(--color-ink);
  font-family: var(--font-heading);
}

.main-nav .has-children > .nav-toplevel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.main-nav .submenu {
  display: none;
  background: var(--color-bg-alt);
}

.main-nav .has-children.is-open .submenu {
  display: block;
}

.main-nav .submenu a {
  padding-left: 36px;
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav .nav-cta {
  padding: 20px;
}

.chevron {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.has-children.is-open .chevron {
  transform: rotate(180deg);
}

@media (min-width: 960px) {
  .header-call {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--color-primary);
  }

  .header-cta {
    display: inline-flex;
  }

  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    inset: auto;
    transform: none;
    overflow: visible;
    padding: 0;
    flex: 1;
  }

  .main-nav > ul {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
  }

  .main-nav > ul > li {
    border-bottom: none;
    position: relative;
  }

  .main-nav a, .main-nav .nav-toplevel {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
  }

  .main-nav a:hover, .main-nav .nav-toplevel:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary);
  }

  .main-nav .has-children:hover .submenu,
  .main-nav .has-children.is-open .submenu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 8px;
  }

  .main-nav .submenu a {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
  }

  .main-nav .nav-cta {
    display: none;
  }

  .site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
  }
}

/* ---------- Sticky mobile CTA bar ---------- */

.mobile-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  height: var(--mobile-cta-height);
  box-shadow: 0 -4px 14px rgba(0,0,0,0.12);
}

.mobile-cta-bar a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
}

.mobile-cta-bar .cta-call {
  background: var(--color-primary);
}

.mobile-cta-bar .cta-whatsapp {
  background: var(--color-whatsapp);
}

.mobile-cta-bar svg {
  width: 18px;
  height: 18px;
}

@media (min-width: 960px) {
  .mobile-cta-bar {
    display: none;
  }

  body {
    padding-bottom: 0;
  }
}

/* ---------- Hero ---------- */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #ffffff;
  padding: 48px 0 56px;
}

.hero__grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  color: #ffffff;
  margin-bottom: 18px;
}

.hero p.lead {
  font-size: 1.1rem;
  color: #d7e2e6;
  max-width: 56ch;
  margin-bottom: 28px;
}

.hero__trustline {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
  font-size: 0.88rem;
  color: #bcccd2;
}

.hero__trustline span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero__trustline svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.hero__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 860px) {
  .hero {
    padding: 72px 0 84px;
  }
  .hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

/* ---------- Breadcrumb ---------- */

.breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--color-muted);
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: 6px;
  color: #b7c0c4;
}

.breadcrumb a {
  color: var(--color-muted);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb li[aria-current] {
  color: var(--color-ink);
  font-weight: 600;
}

/* ---------- Page header (non-home pages) ---------- */

.page-header {
  background: var(--color-bg-alt);
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  margin-bottom: 10px;
}

.page-header p {
  color: var(--color-muted);
  max-width: 65ch;
  font-size: 1.05rem;
  margin-bottom: 0;
}

/* ---------- Cards grid (service intent cards) ---------- */

.card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card__icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-card__icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  margin-bottom: 4px;
  font-size: 1.1rem;
}

.service-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 6px;
  flex-grow: 1;
}

.service-card__link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.service-card__link svg {
  width: 14px;
  height: 14px;
}

/* ---------- Problem / symptom list ---------- */

.symptom-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.symptom-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.symptom-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.symptom-item span {
  font-weight: 500;
  color: var(--color-ink);
  font-size: 0.95rem;
}

/* ---------- Content blocks / sub-service sections ---------- */

.subservice {
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
  margin-top: 40px;
}

.subservice:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.subservice__body {
  display: grid;
  gap: 28px;
}

@media (min-width: 860px) {
  .subservice__body {
    grid-template-columns: 1.4fr 1fr;
  }
}

.subservice ul.checklist {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}

.subservice ul.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.96rem;
}

.subservice ul.checklist li svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 3px;
}

.note-box {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 18px;
  font-size: 0.92rem;
  color: var(--color-body);
}

.note-box strong {
  color: var(--color-ink);
}

.safety-box {
  background: #fff5ea;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 18px;
  font-size: 0.92rem;
  color: #5c3a1e;
}

.mini-cta {
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.mini-cta p {
  margin-bottom: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

/* ---------- Process steps ---------- */

.steps {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  counter-reset: step;
}

.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 20px 20px;
}

.step__number {
  position: absolute;
  top: -14px;
  left: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 0.95rem;
}

.step h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.step p {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

/* ---------- Why choose us ---------- */

.value-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.value-item {
  display: flex;
  gap: 14px;
}

.value-item__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(232, 98, 44, 0.15);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-item__icon svg {
  width: 20px;
  height: 20px;
}

.value-item h3 {
  font-size: 1rem;
  margin-bottom: 4px;
  color: #fff;
}

.value-item p {
  font-size: 0.9rem;
  color: #b9c7cc;
  margin-bottom: 0;
}

/* ---------- FAQ accordion ---------- */

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-ink);
  cursor: pointer;
}

.faq-item__question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--color-accent);
}

.faq-item.is-open .faq-item__question svg {
  transform: rotate(45deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-item__answer-inner {
  padding: 0 4px 18px;
  color: var(--color-body);
  font-size: 0.96rem;
}

/* ---------- Brands ---------- */

.brands-box {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

/* ---------- Locality tags ---------- */

.locality-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.locality-tag {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 0.88rem;
  color: var(--color-body);
}

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .form-grid.two-col {
    grid-template-columns: 1fr 1fr;
  }
}

.form-field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-body);
  background: #fff;
  color: var(--color-ink);
  min-height: 48px;
}

.form-field textarea {
  min-height: 110px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 58, 75, 0.15);
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 14px;
}

.contact-panel {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 28px;
}

.contact-panel__item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.contact-panel__item:last-child {
  margin-bottom: 0;
}

.contact-panel__item svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-panel__item h3 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.contact-panel__item p, .contact-panel__item a {
  font-size: 0.95rem;
  margin-bottom: 0;
  color: var(--color-body);
}

.contact-grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- CTA band ---------- */

.cta-band {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: #fff;
  padding: 44px 0;
  text-align: center;
  border-radius: var(--radius-lg);
}

.cta-band h2 {
  color: #fff;
  margin-bottom: 10px;
}

.cta-band p {
  color: #ffe4d6;
  margin-bottom: 24px;
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}

.cta-band .btn-group {
  justify-content: center;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--color-accent-dark);
}

.cta-band .btn-primary:hover {
  background: #fff2ec;
  color: var(--color-accent-dark);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-bg-dark);
  color: #a9b8bd;
  padding: 48px 0 20px;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
  margin-bottom: 32px;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand .brand__mark {
  background: var(--color-accent);
}

.footer-brand p {
  color: #8fa0a6;
  max-width: 40ch;
}

.footer-col h3 {
  color: #fff;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: #a9b8bd;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #77878d;
}

/* ---------- Utility ---------- */

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.two-col-list {
  columns: 1;
}

@media (min-width: 640px) {
  .two-col-list {
    columns: 2;
    column-gap: 32px;
  }
}

.two-col-list li {
  break-inside: avoid;
  margin-bottom: 8px;
}

.badge {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
}

.related-links {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 24px;
}

.related-links h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.related-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.related-links a {
  font-weight: 600;
  font-size: 0.94rem;
}

.toc {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 40px;
}

.toc h2 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

@media (min-width: 640px) {
  .toc ul {
    grid-template-columns: 1fr 1fr;
  }
}

.toc a {
  font-weight: 600;
  font-size: 0.94rem;
}