/* ==========================================================================
   Ryan D. Snowden, M.D. — Nashville Spine Surgery
   Design system

   Palette
     --ink        #12181F   primary text / dark surfaces
     --paper      #FFFFFF   base background
     --mist       #F3F5F4   alternating section background (cool, clinical — not warm cream)
     --spine      #0E4B44   signature accent — deep clinical teal
     --spine-tint #E7F0EE   pale tint of accent for chips/badges
     --slate      #5B6670   secondary text
     --line       #E1E5E4   hairline borders

   Type
     Display : "Fraunces"      — headlines, used with restraint
     Body/UI : "Inter"         — everything else
     Utility : "IBM Plex Mono" — data, eyebrows, credential figures

   Signature element
     A single continuous line tracing the natural curves of the spine
     (cervical lordosis → thoracic kyphosis → lumbar lordosis → sacrum),
     used as hero linework, section dividers and the favicon mark.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,500&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --ink: #12181F;
  --paper: #FFFFFF;
  --mist: #F3F5F4;
  --spine: #0E4B44;
  --spine-dark: #0A3B36;
  --spine-tint: #E7F0EE;
  --slate: #5B6670;
  --line: #E1E5E4;

  --font-display: 'Fraunces', ui-serif, Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;

  --content-width: 1120px;
  --reading-width: 68ch;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 3.25rem;
  --space-6: 4.75rem;

  --radius: 3px;
  --shadow-card: 0 1px 2px rgba(18,24,31,0.04), 0 8px 24px rgba(18,24,31,0.05);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--spine); text-decoration-color: rgba(14,75,68,0.35); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.25rem, 1.7rem + 2.4vw, 3.6rem); font-weight: 500; }
h2 { font-size: clamp(1.6rem, 1.35rem + 1.1vw, 2.35rem); }
h3 { font-size: 1.3rem; font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; font-family: var(--font-body); }

p { margin: 0 0 1.1em; color: var(--ink); }
.lede { font-size: 1.2rem; color: var(--slate); line-height: 1.55; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--spine);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: 1em;
}
.eyebrow::before { content: ''; width: 1.4em; height: 1px; background: var(--spine); display: inline-block; }

.container { max-width: var(--content-width); margin: 0 auto; padding: 0 var(--space-3); }
.prose { max-width: var(--reading-width); }
.prose p, .prose ul, .prose ol { max-width: var(--reading-width); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: 0.5em; }

section { padding: var(--space-5) 0; }
.section-tight { padding: var(--space-4) 0; }
.bg-mist { background: var(--mist); }
.bg-ink { background: var(--ink); color: #fff; }
.bg-ink h2, .bg-ink h3, .bg-ink p { color: #fff; }
.bg-ink .slate { color: rgba(255,255,255,0.65); }

hr.divider {
  border: none;
  height: 24px;
  margin: 0 auto var(--space-4);
  width: 120px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 24'%3E%3Cpath d='M2 4c14 0 14 16 28 16s14-16 28-16 14 16 28 16 14-16 28-16' fill='none' stroke='%230E4B44' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
  opacity: 0.55;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85em 1.6em;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.btn-primary { background: var(--spine); color: #fff; }
.btn-primary:hover { background: var(--spine-dark); }
.btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-ghost-inverse { border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-ghost-inverse:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.btn-sm { padding: 0.6em 1.1em; font-size: 0.85rem; }
a.btn { text-decoration: none; }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--spine);
  outline-offset: 2px;
}

/* ---- Top utility bar ---- */
.utility-bar {
  background: var(--ink);
  color: rgba(255,255,255,0.78);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}
.utility-bar .container { display: flex; justify-content: space-between; align-items: center; height: 34px; }
.utility-bar a { color: rgba(255,255,255,0.85); text-decoration: none; }
.utility-bar a:hover { color: #fff; }
.utility-links { display: flex; gap: 1.4rem; align-items: center; }
.utility-links .ig { display: inline-flex; align-items: center; gap: 0.4em; }

/* ---- Main nav ---- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.94); backdrop-filter: saturate(180%) blur(8px); border-bottom: 1px solid var(--line); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; color: var(--spine); flex-shrink: 0; }
.brand-text { font-family: var(--font-display); font-size: 1.18rem; color: var(--ink); line-height: 1.1; }
.brand-text small { display: block; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em; color: var(--slate); text-transform: uppercase; margin-top: 2px; }

.main-nav { display: flex; align-items: center; gap: 2rem; }
.main-nav > ul { list-style: none; display: flex; gap: 1.7rem; margin: 0; padding: 0; align-items: center; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a, .main-nav > ul > li > button {
  font-size: 0.92rem; font-weight: 500; color: var(--ink); text-decoration: none;
  background: none; border: none; font-family: var(--font-body); cursor: pointer;
  display: flex; align-items: center; gap: 0.3em; padding: 0.4em 0;
}
.main-nav > ul > li > a:hover, .main-nav > ul > li > button:hover { color: var(--spine); }
.caret { width: 9px; height: 9px; transition: transform 0.15s ease; }
.has-dropdown:hover .caret, .has-dropdown:focus-within .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: 100%; left: -1rem; min-width: 240px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-card); padding: 0.6rem; margin-top: 0.6rem;
  opacity: 0; visibility: hidden; transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
  columns: 1;
}
.dropdown.wide { min-width: 460px; columns: 2; column-gap: 0.6rem; }
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: 0.55rem 0.7rem; font-size: 0.87rem; color: var(--ink); text-decoration: none; border-radius: 2px; break-inside: avoid; }
.dropdown a:hover { background: var(--spine-tint); color: var(--spine-dark); }
.dropdown-label { font-family: var(--font-mono); font-size: 0.63rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--slate); padding: 0.5rem 0.7rem 0.15rem; }

.nav-cta { display: flex; align-items: center; gap: 1rem; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.4rem; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; transition: 0.2s; }

@media (max-width: 900px) {
  .main-nav { position: fixed; inset: 76px 0 0 0; background: #fff; flex-direction: column; align-items: stretch; padding: 1.5rem; overflow-y: auto; transform: translateX(100%); transition: transform 0.25s ease; }
  .main-nav.open { transform: translateX(0); }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav > ul > li { border-bottom: 1px solid var(--line); }
  .main-nav > ul > li > a, .main-nav > ul > li > button { padding: 1rem 0; width: 100%; justify-content: space-between; }
  .dropdown, .dropdown.wide { position: static; box-shadow: none; border: none; opacity: 1; visibility: visible; transform: none; display: none; margin: 0 0 0.5rem; columns: 1; padding-left: 0.5rem; }
  .has-dropdown.expanded .dropdown { display: block; }
  .nav-toggle { display: block; }
  .nav-cta .btn-primary { display: none; }
  .utility-bar .container { font-size: 0.68rem; }
}

/* ---- Hero ---- */
.hero { padding: var(--space-6) 0 var(--space-5); overflow: hidden; position: relative; }
.hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-5); align-items: center; }
.hero h1 { margin-bottom: 0.4em; }
.hero .lede { margin-bottom: var(--space-3); max-width: 46ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: var(--space-4); }
.hero-figure { position: relative; aspect-ratio: 4/5; background: var(--ink); border-radius: 4px; overflow: hidden; }
.hero-figure svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-figure img.headshot { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 15%; }
.hero-figure .photo-scrim { position: absolute; inset: 0; background: linear-gradient(to top, rgba(9,13,17,0.78) 0%, rgba(9,13,17,0.28) 42%, transparent 62%); }
.hero-figure .monogram { position: absolute; inset: 0; display: flex; align-items: flex-end; padding: var(--space-3); }
.hero-figure .monogram-text { font-family: var(--font-display); color: rgba(255,255,255,0.94); font-size: 1.05rem; line-height: 1.3; }
.hero-figure .monogram-text strong { display: block; font-size: 1.3rem; }
.hero-figure .monogram-text span { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; color: rgba(255,255,255,0.55); text-transform: uppercase; }

.spine-line-path { stroke-dasharray: 900; stroke-dashoffset: 900; animation: draw 1.8s ease forwards 0.2s; }
@media (prefers-reduced-motion: reduce) { .spine-line-path { animation: none; stroke-dashoffset: 0; } }
@keyframes draw { to { stroke-dashoffset: 0; } }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-figure { aspect-ratio: 16/9; order: -1; }
}

/* ---- Credential strip ---- */
.credential-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--mist); }
.credential-strip .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); padding: var(--space-3) var(--space-3); }
.credential-item { text-align: left; }
.credential-figure { font-family: var(--font-mono); font-size: 1.5rem; color: var(--spine); display: block; margin-bottom: 0.15em; }
.credential-label { font-size: 0.82rem; color: var(--slate); line-height: 1.35; }
@media (max-width: 900px) { .credential-strip .container { grid-template-columns: repeat(2, 1fr); } }

/* ---- Cards ---- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
@media (max-width: 900px) { .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; } }
@media (min-width: 601px) and (max-width: 900px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }

/* About page: photo panel + bio, and the education timeline rows */
.about-hero { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: var(--space-5); align-items: start; }
.about-hero .hero-figure { position: sticky; top: 100px; aspect-ratio: 3/4; }
@media (max-width: 900px) {
  .about-hero { grid-template-columns: 1fr; }
  .about-hero .hero-figure { position: static; aspect-ratio: 16/9; }
}
.edu-row { display: grid; grid-template-columns: 160px 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
@media (max-width: 560px) { .edu-row { grid-template-columns: 1fr; gap: 0.3rem; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: var(--space-3); transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { border-color: var(--spine); box-shadow: var(--shadow-card); transform: translateY(-2px); }
.card-icon { width: 36px; height: 36px; color: var(--spine); margin-bottom: 1rem; }
.card h3 { margin-bottom: 0.4em; }
.card p { color: var(--slate); font-size: 0.95rem; margin-bottom: 0.8em; }
.card-link { font-size: 0.86rem; font-weight: 600; text-decoration: none; }

.chip-group { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.chip {
  font-size: 0.85rem; padding: 0.55em 1em; border: 1px solid var(--line); border-radius: 100px;
  text-decoration: none; color: var(--ink); background: #fff; transition: 0.15s;
}
.chip:hover { border-color: var(--spine); background: var(--spine-tint); color: var(--spine-dark); }

/* ---- Callout ---- */
.callout {
  border-left: 3px solid var(--spine); background: var(--spine-tint);
  padding: var(--space-3) var(--space-3); border-radius: 0 4px 4px 0; margin: var(--space-3) 0;
  max-width: var(--reading-width);
}
.callout h4 { color: var(--spine-dark); margin-bottom: 0.6em; }
.callout ul { margin: 0; padding-left: 1.1em; }
.callout li { margin-bottom: 0.45em; color: var(--ink); }

/* ---- Breadcrumb ---- */
.breadcrumb { font-family: var(--font-mono); font-size: 0.72rem; color: var(--slate); text-transform: uppercase; letter-spacing: 0.04em; padding-top: var(--space-3); }
.breadcrumb a { color: var(--slate); text-decoration: none; }
.breadcrumb a:hover { color: var(--spine); }

/* ---- Article page (conditions / procedures) ---- */
.article-head { padding: var(--space-4) 0 var(--space-3); }
.article-head .eyebrow { margin-bottom: 0.6em; }
.article-meta { display: flex; gap: 1.2rem; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.72rem; color: var(--slate); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 1rem; }
.article-body h2 { margin-top: 2em; }
.article-body h3 { margin-top: 1.6em; color: var(--spine-dark); }
.video-embed { position: relative; padding-top: 56.25%; background: var(--ink); border-radius: 4px; overflow: hidden; margin: var(--space-3) 0; max-width: var(--reading-width); }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.related-box { background: var(--mist); border-radius: 4px; padding: var(--space-3); margin-top: var(--space-4); }
.related-box h4 { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--slate); margin-bottom: 1rem; }

/* ---- Instagram band ---- */
.ig-band { background: var(--ink); color: #fff; }
.ig-band .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.ig-band-copy { max-width: 46ch; }
.ig-band .eyebrow { color: #E7CFA6; }
.ig-band .eyebrow::before { background: #E7CFA6; }
.ig-handle { font-family: var(--font-mono); color: rgba(255,255,255,0.6); }
@media (max-width: 900px) { .ig-band .container { flex-direction: column; align-items: flex-start; } }

/* ---- Resources (PDF hub) ---- */
.resource-card { display: flex; gap: 1rem; align-items: flex-start; }
.resource-icon { width: 42px; height: 52px; flex-shrink: 0; color: var(--spine); }
.resource-meta { font-family: var(--font-mono); font-size: 0.7rem; color: var(--slate); text-transform: uppercase; }
.empty-state { border: 1px dashed var(--line); border-radius: 6px; padding: var(--space-5) var(--space-3); text-align: center; color: var(--slate); }
.empty-state svg { width: 40px; height: 40px; color: var(--spine); margin: 0 auto var(--space-2); }

/* ---- FAQ ---- */
.faq-item { border-bottom: 1px solid var(--line); padding: 1.1rem 0; max-width: var(--reading-width); }
.faq-item summary { font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-family: var(--font-mono); font-size: 1.2rem; color: var(--spine); flex-shrink: 0; transition: transform 0.15s; }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { margin-top: 0.8rem; color: var(--slate); }

/* ---- Expertise band (dense tag row) ---- */
.expertise-band { background: var(--ink); padding: 1.6rem 0; }
.expertise-band .container { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }
.expertise-band .expertise-label { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: #E7CFA6; flex-shrink: 0; }
.expertise-band .tags { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.expertise-band .tags a { font-size: 0.82rem; padding: 0.45em 0.9em; border: 1px solid rgba(255,255,255,0.22); border-radius: 100px; color: rgba(255,255,255,0.88); text-decoration: none; transition: 0.15s; white-space: nowrap; }
.expertise-band .tags a:hover { border-color: #fff; background: rgba(255,255,255,0.08); color: #fff; }

/* ---- Accordion (native details/summary, no JS) ---- */
.accordion-item { border: 1px solid var(--line); border-radius: 4px; margin-bottom: 0.7rem; overflow: hidden; }
.accordion-item summary {
  font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 500; color: var(--ink); cursor: pointer; list-style: none; padding: 1rem 1.2rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; background: var(--mist);
}
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary .count { font-family: var(--font-body); text-transform: none; letter-spacing: 0; color: var(--slate); font-weight: 400; font-size: 0.8rem; }
.accordion-item summary::after { content: '+'; font-family: var(--font-mono); font-size: 1.1rem; color: var(--spine); flex-shrink: 0; }
.accordion-item[open] summary::after { content: '\2212'; }
.accordion-item[open] summary { border-bottom: 1px solid var(--line); }
.accordion-body { padding: 1.2rem 1.2rem 0.4rem; }
.accordion-body h4.sub-head { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--spine); margin: 1.3rem 0 0.6rem; }
.accordion-body h4.sub-head:first-child { margin-top: 0; }

/* ---- Affiliation strip (text-based trust badges, no third-party logos) ---- */
.affiliation-strip { background: var(--mist); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 1.5rem 0; }
.affiliation-strip .container { display: flex; align-items: center; justify-content: center; gap: 2.2rem; flex-wrap: wrap; }
.affiliation-badge { display: flex; align-items: center; gap: 0.5rem; color: var(--slate); }
.affiliation-badge svg { width: 20px; height: 20px; color: var(--spine); flex-shrink: 0; }
.affiliation-badge span { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* ---- Publication cards ---- */
.pub-card { border-left: 2px solid var(--spine); padding: 0.2rem 0 0.2rem 1rem; }
.pub-card .pub-journal { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--spine); display: block; margin-bottom: 0.4rem; }
.pub-card h4 { font-size: 0.98rem; margin-bottom: 0; line-height: 1.4; }

/* ---- Locations ---- */
.location-card { border: 1px solid var(--line); border-radius: 4px; padding: var(--space-3); }
.location-card h3 { margin-bottom: 0.2em; }
.location-card .tag { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--spine); }
.location-card address { font-style: normal; color: var(--slate); margin: 0.6em 0; line-height: 1.5; }

/* ---- CTA band ---- */
.cta-band { background: var(--spine); color: #fff; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.82); }
.cta-band .btn-ghost-inverse { border-color: rgba(255,255,255,0.5); }

/* ---- Footer ---- */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.7); padding: var(--space-5) 0 var(--space-3); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-4); margin-bottom: var(--space-4); }
.footer-grid h4 { color: #fff; font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 0.6rem; }
.footer-grid a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.88rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: var(--space-3); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: 0.8rem; color: rgba(255,255,255,0.5); }
.footer-social { display: flex; gap: 1rem; }
.footer-social a { color: rgba(255,255,255,0.7); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ---- Scroll reveal ---- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---- Skip link ---- */
.skip-link { position: absolute; left: -999px; top: 0; background: var(--spine); color: #fff; padding: 0.7em 1.2em; z-index: 100; }
.skip-link:focus { left: 0; }

/* ---- Utility ---- */
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-0 { margin-top: 0; }
.slate { color: var(--slate); }
.small { font-size: 0.85rem; }
.section-head { max-width: 62ch; margin-bottom: var(--space-4); }
.section-head.text-center { margin-left: auto; margin-right: auto; }