/* ============================================================
   JOYRIDE RESEARCH — Design System v3
   ============================================================
   Color Palette
   --bg:          #080a0b   (near-black background)
   --panel:       #0e1215   (card / panel surface)
   --line:        #1c2226   (border / divider)
   --muted:       #6b7c85   (secondary text)
   --fg:          #e8edf0   (primary text)
   --accent:      #5ef3d1   (teal/mint — CTAs, highlights)
   --accent-dim:  rgba(94,243,209,0.12)
   --accent-glow: rgba(94,243,209,0.55)
   --danger:      #f35e5e   (error / badge)
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #080a0b;
  --panel:       #0e1215;
  --line:        #1c2226;
  --muted:       #6b7c85;
  --fg:          #e8edf0;
  --accent:      #5ef3d1;
  --accent-dim:  rgba(94,243,209,0.12);
  --accent-glow: rgba(94,243,209,0.55);
  --danger:      #f35e5e;
  --radius-sm:   2px;
  --radius:      4px;
  --max-w:       1280px;
  --nav-h:       4.75rem;
  --transition:  0.18s ease;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* --- Typography ------------------------------------------- */
.label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
}

.label-muted {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

h1, .h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.065em;
}

h2, .h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

h3, .h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

p.body-lg {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--muted);
}

/* --- Layout helpers --------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}
@media (min-width: 1024px) { .container { padding-inline: 2.5rem; } }

.section { padding-block: 5rem; }
@media (min-width: 768px) { .section { padding-block: 7rem; } }

.border-b { border-bottom: 1px solid var(--line); }
.border-t { border-top: 1px solid var(--line); }

/* --- Navigation ------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(8,10,11,0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.site-nav .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo img { height: 2.2rem; width: auto; }

.nav-links {
  display: none;
  list-style: none;
  gap: 1.75rem;
}
@media (min-width: 768px) { .nav-links { display: flex; align-items: center; } }

.nav-links a {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
  position: relative;
  padding-block: 0.4rem;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-links a:hover { color: var(--fg); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--fg); }

.nav-cta {
  display: none;
}
@media (min-width: 900px) { .nav-cta { display: flex; gap: 0.75rem; align-items: center; } }

/* Mobile hamburger */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
@media (min-width: 768px) { .nav-hamburger { display: none; } }
.nav-hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--fg);
  transition: transform var(--transition);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: var(--nav-h);
  right: 1.5rem;
  width: 260px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1rem;
  box-shadow: 0 8px 40px rgba(0,0,0,0.55);
  z-index: 99;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 0.65rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  transition: color var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--fg); }

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #080a0b;
  border: 1px solid var(--accent);
}
.btn-primary:hover {
  background: #7fffdf;
  border-color: #7fffdf;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  padding-inline: 0.5rem;
}
.btn-ghost:hover { color: var(--fg); }

.btn svg { flex-shrink: 0; }

/* --- Badge ----------------------------------------------- */
.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
}
.badge-accent { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(94,243,209,0.25); }
.badge-danger { background: rgba(243,94,94,0.12); color: var(--danger); border: 1px solid rgba(243,94,94,0.25); }
.badge-muted  { background: rgba(255,255,255,0.05); color: var(--muted); border: 1px solid var(--line); }

/* --- Card ------------------------------------------------- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover {
  border-color: rgba(94,243,209,0.35);
  box-shadow: 0 4px 32px rgba(94,243,209,0.07);
}

.card-img {
  position: relative;
  overflow: hidden;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}
.card:hover .card-img img { transform: scale(1.05); }

.card-body { padding: 1.5rem; }

/* --- Track Card ------------------------------------------ */
.track-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--panel);
}
.track-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.track-card:hover {
  border-color: rgba(94,243,209,0.35);
  box-shadow: 0 4px 40px rgba(94,243,209,0.07);
}
.track-card:hover::before { opacity: 1; }

.track-number {
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--line);
  position: absolute;
  top: 1.25rem; right: 1.75rem;
}

/* --- Grid ------------------------------------------------- */
.grid-2 { display: grid; gap: 1.5rem; }
.grid-3 { display: grid; gap: 1.5rem; }
.grid-4 { display: grid; gap: 1.25rem; }

@media (min-width: 600px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 768px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- Section header centered ----------------------------- */
.section-header {
  text-align: center;
  max-width: 52rem;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}
.section-header .label { margin-bottom: 1rem; display: block; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p { color: var(--muted); font-size: 1.05rem; line-height: 1.75; }

/* --- Input / Search --------------------------------------- */
.input {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  width: 100%;
  outline: none;
  transition: border-color var(--transition);
}
.input::placeholder { color: var(--muted); }
.input:focus { border-color: var(--accent); }

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-wrap .search-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--muted);
  pointer-events: none;
}
.search-wrap .input { padding-left: 2.5rem; }

/* --- Chip filter ----------------------------------------- */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.chip {
  padding: 0.35rem 0.85rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active {
  border-color: var(--accent);
  color: #080a0b;
  background: var(--accent);
}

/* --- Select ---------------------------------------------- */
.select {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 0.55rem 2rem 0.55rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7c85' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
}
.select:focus { border-color: var(--accent); }

/* --- Accent line decoration ------------------------------ */
.accent-line {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--accent);
}
.accent-line::before {
  content: '';
  display: block;
  width: 2.5rem; height: 1px;
  background: var(--accent);
}

/* --- Hero specific --------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100svh - var(--nav-h));
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.15;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, #080a0b 10%, rgba(8,10,11,0.75) 55%, rgba(8,10,11,0.3)),
    linear-gradient(0deg, #080a0b 0%, transparent 40%, #080a0b 100%);
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(94,243,209,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94,243,209,0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to right, black, transparent 75%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-inner {
  display: grid;
  gap: 3rem;
  align-items: center;
  padding-block: 5rem;
}
@media (min-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    padding-block: 6rem;
  }
}

.hero-eyebrow { margin-bottom: 1.5rem; }
.hero-headline { margin-bottom: 1rem; }
.hero-headline .accent { color: var(--accent); }
.hero-subtext {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 36rem;
  margin-bottom: 2.25rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.hero-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.hero-divider::before, .hero-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
  max-width: 1.5rem;
}

.hero-image-frame {
  position: relative;
  aspect-ratio: 0.82;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.4);
  max-width: 420px;
  margin-inline: auto;
}
.hero-image-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 55%, rgba(8,10,11,0.92)),
    linear-gradient(90deg, rgba(8,10,11,0.25), transparent, rgba(8,10,11,0.25));
}
.hero-image-caption {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem; right: 1.25rem;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 0.75rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.hero-image-caption .accent { color: var(--accent); }

.hero-recommended {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-dim);
  border: 1px solid rgba(94,243,209,0.25);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.75rem;
}
.hero-recommended-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* --- Quiz specific --------------------------------------- */
.quiz-wrap {
  max-width: 640px;
  margin-inline: auto;
}

.quiz-step {
  display: none;
  animation: fadeIn 0.3s ease;
}
.quiz-step.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.quiz-progress-bar {
  height: 2px;
  background: var(--line);
  border-radius: 999px;
  margin-bottom: 2.5rem;
  overflow: hidden;
}
.quiz-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.4s ease;
  box-shadow: 0 0 10px var(--accent-glow);
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-block: 2rem;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--panel);
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  text-align: left;
}
.quiz-option:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.quiz-option.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 0 1px var(--accent);
}
.quiz-option-radio {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--muted);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition);
}
.quiz-option.selected .quiz-option-radio {
  border-color: var(--accent);
}
.quiz-option.selected .quiz-option-radio::after {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}
.quiz-option-text strong { display: block; color: var(--fg); font-size: 0.95rem; margin-bottom: 0.2rem; }
.quiz-option-text span { font-size: 0.82rem; color: var(--muted); }

.quiz-result-card {
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 2rem;
  background: var(--accent-dim);
  text-align: center;
}
.quiz-result-card .result-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.quiz-result-card h3 { margin-bottom: 0.75rem; }
.quiz-result-card p { color: var(--muted); font-size: 0.95rem; margin-bottom: 1.5rem; }

/* --- Vault page ------------------------------------------ */
.vault-layout {
  display: grid;
  gap: 2rem;
  align-items: start;
}
@media (min-width: 900px) {
  .vault-layout {
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
  }
}

.filter-sidebar {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: static;
}

@media (min-width: 900px) {
  .filter-sidebar {
    position: sticky;
    top: calc(var(--nav-h) + 1.5rem);
  }
}

.filter-group { margin-bottom: 1.75rem; }
.filter-group:last-child { margin-bottom: 0; }
.filter-group-label {
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
  display: block;
}
.filter-options { display: flex; flex-direction: column; gap: 0.35rem; }
.filter-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--muted);
  transition: color var(--transition), background var(--transition);
}
.filter-option:hover { color: var(--fg); background: rgba(255,255,255,0.04); }
.filter-option.active { color: var(--accent); }
.filter-option-check {
  width: 15px; height: 15px;
  border: 1px solid var(--line);
  border-radius: 3px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), background var(--transition);
}
.filter-option.active .filter-option-check {
  border-color: var(--accent);
  background: var(--accent);
}
.filter-option.active .filter-option-check::after {
  content: '';
  width: 9px; height: 9px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23080a0b' stroke-width='3'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center/contain no-repeat;
}

.catalog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.catalog-count {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.catalog-count span { color: var(--fg); }

.catalog-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 500px) { .catalog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .catalog-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1200px) { .catalog-grid { grid-template-columns: repeat(4, 1fr); } }

.catalog-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
}
.catalog-card:hover {
  border-color: rgba(94,243,209,0.3);
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
  transform: translateY(-2px);
}
.catalog-card-thumb {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #101518;
  position: relative;
}
.catalog-card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.catalog-card:hover .catalog-card-thumb img { transform: scale(1.06); }
.catalog-card-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(8,10,11,0.75));
}
.catalog-card-format {
  position: absolute;
  top: 0.65rem; left: 0.65rem;
}
.catalog-card-body { padding: 1rem; }
.catalog-card-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.3rem;
  line-height: 1.35;
}
.catalog-card-meta {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* --- Design system doc page ------------------------------ */
.ds-swatch {
  width: 100%; height: 56px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}
.ds-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.ds-swatch-label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-top: 0.4rem;
}
.ds-example { margin-block: 1rem; }
.ds-divider {
  border: none;
  border-top: 1px solid var(--line);
  margin-block: 3rem;
}
.ds-section-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

/* --- Footer --------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg);
  padding-block: 3rem;
}
.footer-inner {
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}
.footer-logo img { height: 1.75rem; width: auto; opacity: 0.65; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  list-style: none;
}
.footer-link-columns {
  display: flex;
  gap: 2rem;
}
.footer-links-column {
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}
@media (max-width: 767px) {
  .footer-link-columns {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-links-column {
    align-items: flex-start;
  }
}
.footer-links a {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--fg); }
.footer-legal {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

/* --- Utilities ------------------------------------------- */
.text-accent { color: var(--accent); }
.text-muted  { color: var(--muted); }
.text-center { text-align: center; }
.mt-2  { margin-top: 0.5rem; }
.mt-4  { margin-top: 1rem; }
.mt-6  { margin-top: 1.5rem; }
.mt-8  { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.mb-2  { margin-bottom: 0.5rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }
.mb-8  { margin-bottom: 2rem; }
.flex  { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.w-full { width: 100%; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* Hidden class for filtering */
.hidden { display: none !important; }

/* --- Protocol pages --------------------------------------- */
.protocol-header {
  margin-bottom: 2.5rem;
}

.protocol-header h2 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
  margin-bottom: 0.75rem;
  text-wrap: balance;
}

.protocol-body {
  line-height: 1.7;
}

.protocol-body h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.85rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-top: 3rem;
  margin-bottom: 0.75rem;
  text-wrap: balance;
}

.protocol-body > h2:first-child {
  font-size: clamp(2.15rem, 4.2vw, 3.35rem);
}

.protocol-body p {
  font-size: clamp(1rem, 1.2vw, 1.14rem);
  margin-bottom: 1.25rem;
  color: var(--muted);
}

.protocol-body p strong {
  color: var(--fg);
}

.protocol-body img {
  display: inline;
  max-width: min(100%, 19rem);
}

.breaker {
  font-size: clamp(1.6rem, 3.2vw, 2.65rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  text-wrap: balance;
}

#paymentform h5 {
  margin-bottom: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 860px) {
  .protocol-body img {
    float: none !important;
    display: block;
    margin: 1.5rem auto 2rem !important;
  }
}

/* Bootstrap spacing shims used in protocol pages */
.mb-3 { margin-bottom: 0.75rem; }
.mt-5 { margin-top: 3rem; }