:root {
  --neutral-0: #ffffff;
  --neutral-50: #fafaf9;
  --neutral-100: #f5f5f4;
  --neutral-200: #e7e5e4;
  --neutral-300: #d6d3d1;
  --neutral-400: #a8a29e;
  --neutral-500: #78716c;
  --neutral-600: #57534e;
  --neutral-700: #44403c;
  --neutral-800: #292524;
  --neutral-900: #1c1917;
  --neutral-950: #0c0a09;
  --brand-50: #eef2ff;
  --brand-100: #e0e7ff;
  --brand-200: #c7d2fe;
  --brand-300: #a5b4fc;
  --brand-400: #818cf8;
  --brand-500: #6366f1;
  --brand-600: #4f46e5;
  --brand-700: #4338ca;
  --brand-800: #3730a3;
  --brand-900: #312e81;
  --accent-50: #fffbeb;
  --accent-100: #fef3c7;
  --accent-200: #fde68a;
  --accent-500: #f59e0b;
  --accent-700: #b45309;
  --accent-800: #92400e;
  --success-50: #ecfdf5;
  --success-700: #047857;
  --danger-50: #fff1f2;
  --danger-700: #be123c;
  --warning-50: #fffbeb;
  --warning-700: #92400e;
  --info-50: #eff6ff;
  --info-700: #1d4ed8;
  --bg: var(--neutral-50);
  --surface: var(--neutral-0);
  --surface-2: var(--neutral-100);
  --text: var(--neutral-900);
  --muted: #3f3a37;
  --muted-2: #6b6560;
  --border: var(--neutral-300);
  --border-soft: var(--neutral-200);
  --border-strong: var(--neutral-500);
  --primary: var(--brand-700);
  --primary-hover: var(--brand-800);
  --primary-active: var(--brand-900);
  --primary-soft: var(--brand-50);
  --link: var(--brand-700);
  --link-hover: var(--brand-800);
  --focus-ring-color: var(--brand-700);
  --focus-ring: 0 0 0 3px var(--neutral-0), 0 0 0 5px rgba(67, 56, 202, 0.55);
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.09), 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.11), 0 4px 12px rgba(0, 0, 0, 0.07);
  --transition: 160ms ease;
  --surface2: var(--surface-2);
  --card-bg: var(--surface);
  --accent: var(--accent-700);
  --accent-bg: var(--accent-50);
  --accent2: var(--info-700);
  --accent2-bg: var(--info-50);
  --cold: var(--info-700);
  --glow: rgba(67, 56, 202, 0.14);
  --formula-bg: var(--neutral-50);
  --highlight-bg: var(--accent-50);
  --highlight-border: var(--accent-200);
  --text-muted: #3f3a37;
  --text-dim: #6b6560;
  --focus-accent: rgba(180, 83, 9, 0.15);
  --focus-accent2: rgba(29, 78, 216, 0.15);
  --hero-letter-color: rgba(180, 83, 9, 0.06);
  --border-accent-subtle: rgba(180, 83, 9, 0.25);
  --border-info-subtle: rgba(29, 78, 216, 0.3);
  --shadow-accent: 0 2px 8px rgba(180, 83, 9, 0.2);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.08);
  --font-body: "Noto Serif Bengali", serif;
}

/* ══════════════════════════════════════════════════════
   BASE STYLES — note: critical styles are inlined in HTML,
   this file only contains non-critical / below-fold styles
══════════════════════════════════════════════════════ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);

  font-size: 1.125rem;
  line-height: 1.7;
  min-height: 100vh;
}

/* PERFORMANCE: background pattern only on desktop */
@media (min-width: 768px) {
  body {
    background-image: radial-gradient(
      circle,
      var(--neutral-300) 1px,
      transparent 1px
    );
    background-size: 28px 28px;
  }
}

/* ══════════════════════════════════════════════════════
   SKIP LINK
══════════════════════════════════════════════════════ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--primary);
  color: var(--neutral-0);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  z-index: 9999;
  border-radius: 0 0 var(--radius-md) 0;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ══════════════════════════════════════════════════════
   HEADER & NAVBAR
══════════════════════════════════════════════════════ */

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  min-height: 64px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

.logo:hover {
  color: var(--primary-hover);
}

.logo:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}

.logo i {
  font-size: 1.625rem;
  font-style: normal;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.875rem;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
  line-height: 1;
  min-width: 44px;
  min-height: 44px;
}

.mobile-toggle:hover {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  display: block;
  padding: 0.625rem 1rem;
  color: var(--text);
  text-decoration: none;
  font-size: 1.0625rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition:
    background var(--transition),
    color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.nav-links a:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--surface);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  list-style: none;
  margin: 0.25rem 0 0;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition:
    opacity var(--transition),
    transform var(--transition),
    visibility var(--transition);
  z-index: 100;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  padding: 0.75rem 1.25rem;
  border-radius: 0;
  display: block;
  font-size: 1rem;
  transition:
    background var(--transition),
    color var(--transition);
}

.dropdown-menu a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border-top: 1px solid var(--border-soft);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 0;
    display: none;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links a {
    padding: 0.875rem 1.25rem;
    border-radius: 0;
    min-height: 44px;
    font-size: 1.0625rem;
    display: flex;
    align-items: center;
  }
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 3px solid var(--primary-soft);
    margin-left: 1rem;
    display: none;
  }
  .dropdown:hover .dropdown-menu,
  .dropdown:focus-within .dropdown-menu {
    display: block;
  }
  .dropdown-menu a {
    padding-left: 2rem;
    font-size: 1rem;
  }
}

/* ══════════════════════════════════════════════════════
   BREADCRUMB
══════════════════════════════════════════════════════ */

.breadcrumb {
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-soft);
  padding: 0.875rem 0;
  min-height: 44px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  font-size: 0.9375rem;
}

.breadcrumb-item:not(:last-child)::after {
  content: "›";
  margin-left: 0.5rem;
  color: #6b6560;
  font-weight: 600;
}

.breadcrumb-item a {
  color: #3f3a37;
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb-item a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: #1a1513;
  font-weight: 600;
}

/* ══════════════════════════════════════════════════════
   PAGE TITLE
══════════════════════════════════════════════════════ */

section.page-title {
  max-width: 720px;
  margin: 3rem auto;
  padding: 0 1.25rem;
  text-align: center;
}

.page-title h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-title p {
  font-size: 1.1rem;
  color: #3f3a37;
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 768px) {
  .page-title h1 {
    font-size: 2rem;
  }
  .page-title p {
    font-size: 1.125rem;
  }
  section.page-title {
    margin: 2rem auto;
  }
}

/* ══════════════════════════════════════════════════════
   AD SLOT — CLS FIX
══════════════════════════════════════════════════════ */
.ad-slot {
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1.5rem auto;
  max-width: 728px;
  width: 100%;
  background: var(--surface-2);
  overflow: hidden;
  contain: layout style;
}

/* ══════════════════════════════════════════════════════
   MAIN CONTENT WRAPPER
══════════════════════════════════════════════════════ */

.wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  counter-reset: card-counter;
}

/* ══════════════════════════════════════════════════════
   CARD STYLES
══════════════════════════════════════════════════════ */

.card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  padding: 1.75rem 1.75rem 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition);
  content-visibility: auto;
  contain-intrinsic-size: auto 400px;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--brand-400));
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.35rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.card h2::before {
  content: counter(card-counter);
  counter-increment: card-counter;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: "IBM Plex Mono", monospace;
  flex-shrink: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0.875rem;
  align-items: end;
}

.span-6 {
  grid-column: span 6;
}
.span-12 {
  grid-column: span 12;
}

@media (max-width: 520px) {
  .span-6 {
    grid-column: span 12;
  }
}

.form-label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.muted {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #3f3a37;
  text-transform: uppercase;
  letter-spacing: 0.065em;
  display: block;
}

.form-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: inherit;
  font-size: 1.0625rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
  min-height: 46px;
}

.form-input::placeholder {
  color: #6b6560;
}
.form-input:hover {
  border-color: var(--border-strong);
}
.form-input:focus {
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: var(--focus-ring);
}

.form-input:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  padding-top: 0.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border: 1.5px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition);
  white-space: nowrap;
  outline: none;
  letter-spacing: 0.01em;
  line-height: 1;
  min-height: 46px;
}

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

.btn-primary {
  background: var(--primary);
  color: var(--neutral-0);
  border-color: var(--primary);
  box-shadow: 0 2px 6px rgba(67, 56, 202, 0.26);
}

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

.btn-primary:active {
  background: var(--primary-active);
}

.btn:not(.btn-primary):not(.btn-secondary) {
  background: var(--surface-2);
  color: #3f3a37;
  border-color: var(--border);
}

.btn:not(.btn-primary):not(.btn-secondary):hover {
  background: var(--neutral-200);
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--border-accent-subtle);
}

.btn-secondary:hover {
  background: var(--accent-bg);
  border-color: var(--accent);
}

.btn-sm {
  padding: 0.45rem 0.9375rem;
  font-size: 0.875rem;
  min-height: 40px;
}

.result-box {
  background: var(--primary-soft);
  border: 1.5px solid var(--brand-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.4rem;
  margin-top: 0.5rem;
}

.result-top {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.result-main {
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.875rem;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.result-main.success {
  color: #047857;
}
.result-main.warn {
  color: #92400e;
}
.result-main.error {
  color: #be123c;
}
.result-main.info {
  color: var(--primary);
}

.result-sub {
  font-size: 0.9375rem;
  color: #3f3a37;
  margin-top: 0.4rem;
  line-height: 1.5;
}

[hidden] {
  display: none !important;
}

.card > p.muted {
  font-size: 0.9375rem;
  color: #6b6560;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--surface-2);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--border-accent-subtle);
  display: block;
  line-height: 1.7;
}

.card > p.muted em {
  color: var(--accent);
  font-style: normal;
  font-weight: 600;
}

@media (prefers-reduced-motion: no-preference) {
  [id$="Result"]:not([hidden]) .result-box {
    animation: popIn 0.25s ease-out forwards;
  }
  @keyframes popIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
}

/* ══════════════════════════════════════════════════════
   INTRO SECTION
══════════════════════════════════════════════════════ */

.section#intro {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 900px;
  margin: 0 auto 2rem;
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.section#intro h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
  line-height: 1.3;
  color: var(--text);
}

.section#intro p {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.125rem;
  line-height: 1.9;
}

.section#intro p:last-of-type {
  margin-bottom: 0;
}

.section#intro em {
  font-style: normal;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--border-accent-subtle);
  padding: 2px 6px;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1.5;
}

.section#intro strong {
  font-weight: 900;
  color: var(--text);
}

.section#intro .pill-row {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.section#intro .pill {
  line-height: 1.5;
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition);
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.section#intro .pill:hover {
  background: var(--primary-soft);
  border-color: var(--border-strong);
}

.section#intro .pill:focus-visible {
  border-color: var(--primary);
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .section#intro {
    padding: 18px;
  }
  .section#intro h2 {
    font-size: 1.375rem;
  }
  .section#intro p {
    font-size: 1.0625rem;
  }
  .section#intro .pill {
    width: 100%;
    justify-content: center;
  }
}

/* ══════════════════════════════════════════════════════
   CONTENT SECTIONS
══════════════════════════════════════════════════════ */

.section-block {
  max-width: 900px;
  margin: 0 auto 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.section-block h2 {
  margin: 0 0 14px;
  font-size: 1.5rem;
  line-height: 1.3;
  color: var(--text);
}

.section-block p {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.125rem;
  line-height: 1.9;
}

.section-block p:last-child {
  margin-bottom: 0;
}

.section-block strong {
  font-weight: 800;
  color: var(--text);
}

.section-block em {
  font-style: normal;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--border-accent-subtle);
  padding: 2px 6px;
  border-radius: 8px;
  font-weight: 700;
}

.section-block p a {
  color: var(--primary);
  text-decoration: underline;
  font-weight: 600;
}

.section-block p a:hover {
  color: var(--primary-hover);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.info-card {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 18px;
}

.info-card h3 {
  margin: 0 0 10px;
  font-size: 1.1875rem;
  color: var(--primary);
}

.info-card p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: #3f3a37;
}

.step-list,
.example-list,
.note-list {
  margin: 16px 0 0;
  padding-left: 1.2rem;
}

.step-list li,
.example-list li,
.note-list li {
  margin-bottom: 12px;
  font-size: 1.125rem;
  line-height: 1.9;
  color: var(--text);
}

.highlight-box {
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--accent-bg);
  border: 1px solid var(--highlight-border);
}

.highlight-box p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text);
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.mini-card {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 16px;
}

.mini-card h3 {
  margin: 0 0 10px;
  font-size: 1.125rem;
  color: var(--primary);
}

.mini-card p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: #3f3a37;
}

@media (max-width: 768px) {
  .info-grid,
  .mini-grid {
    grid-template-columns: 1fr;
  }
  .section-block {
    padding: 18px;
  }
  .section-block h2 {
    font-size: 1.375rem;
  }
  .section-block p,
  .step-list li,
  .example-list li,
  .note-list li {
    font-size: 1.0625rem;
  }
  .info-card p,
  .mini-card p {
    font-size: 1rem;
  }
}

/* ══════════════════════════════════════════════════════
   FAQ
══════════════════════════════════════════════════════ */

.section#faq {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}

.section#faq h2 {
  font-size: 2.125rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 2rem;
  text-align: center;
  letter-spacing: -0.02em;
}

.faq-list {
  max-width: 100%;
  margin: 0;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
  overflow: hidden;
  transition:
    box-shadow var(--transition),
    border-color var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.faq-item:last-child {
  margin-bottom: 0;
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 1.1875rem;
  font-weight: 600;
  color: var(--text);
  transition:
    background var(--transition),
    color var(--transition);
  line-height: 1.5;
  min-height: 44px;
}

.faq-q:hover {
  background: var(--surface-2);
  color: var(--primary);
}

.faq-q:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: -3px;
}

.faq-q span:first-child {
  flex: 1;
}

.faq-icon {
  flex-shrink: 0;
  width: 1.875rem;
  height: 1.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.625rem;
  font-weight: 300;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 50%;
  transition:
    transform var(--transition),
    background var(--transition);
  line-height: 1;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: var(--neutral-0);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.3s ease,
    padding 0.3s ease;
}

.faq-item.active .faq-a {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem;
}

.faq-a p {
  margin: 0;
  padding-top: 0.5rem;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: #3f3a37;
}

.faq-a strong {
  font-weight: 700;
  color: var(--text);
}

@media (max-width: 768px) {
  .section#faq h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
  }
  .faq-q {
    padding: 1.125rem 1.25rem;
    font-size: 1.0625rem;
  }
  .faq-item.active .faq-a {
    padding: 0 1.25rem 1rem;
  }
  .faq-a p {
    font-size: 1rem;
  }
  .faq-icon {
    width: 1.625rem;
    height: 1.625rem;
    font-size: 1.375rem;
  }
}

/* ══════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════ */

footer {
  background: #1a1513;
  color: #ffffff;
  margin-top: 5rem;
  border-top: 4px solid var(--primary);
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

footer .container {
  padding-top: 3rem;
  padding-bottom: 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-column h3 {
  color: var(--neutral-0);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
}

.footer-column p {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #ebe8e6;
  margin: 0;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #ffffff;
  text-decoration: none;
  font-size: 1.0625rem;
  transition: color var(--transition);
  display: inline-block;
  min-height: 26px;
  line-height: 1.6;
}

.footer-links a:hover {
  color: var(--brand-400);
}

.footer-links a:focus-visible {
  outline: 3px solid var(--brand-400);
  outline-offset: 2px;
}

.copyright {
  border-top: 1px solid var(--neutral-800);
  padding-top: 1.5rem;
  text-align: center;
}

.copyright p {
  font-size: 0.9375rem;
  color: #a8a29e;
  margin: 0;
}

@media (max-width: 992px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 576px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  footer .container {
    padding-top: 2rem;
  }
}