/* ============================================================
   DR. AMARA NWOSU — DIGITAL PRACTICE
   Design tokens
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root{
  --ivory:      #f2ede2;
  --ivory-deep: #e9e1d1;
  --charcoal:   #22231f;
  --charcoal-soft: #35362f;
  --forest:     #24382c;
  --forest-light: #3c5645;
  --sage:       #8fa08d;
  --sage-pale:  #d8ded2;
  --stone:      #c7bfae;
  --burgundy:   #7c2f34;
  --burgundy-soft: #9a5257;

  --bg:         var(--ivory);
  --bg-raised:  var(--ivory-deep);
  --text:       var(--charcoal);
  --text-soft:  #5b5c53;
  --line:       rgba(34,35,31,0.14);
  --accent:     var(--forest);
  --accent-soft:var(--sage);
  --accent-warn:var(--burgundy);

  --serif: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', serif;
  --sans:  'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max: 1180px;
  --pad: clamp(20px, 4vw, 64px);
  --radius: 3px;
}

html[data-theme="dark"]{
  --bg:         #161813;
  --bg-raised:  #1e211a;
  --text:       #ece7db;
  --text-soft:  #b7b6a8;
  --line:       rgba(236,231,219,0.14);
  --sage-pale:  #263025;
  --stone:      #4a4739;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background .4s ease, color .4s ease;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }
button{ font-family:inherit; }

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:500;
  color:var(--text);
  margin:0 0 .4em;
  line-height:1.12;
  letter-spacing:-0.01em;
}
h1{ font-size:clamp(2.6rem, 5.4vw, 4.6rem); font-weight:400; }
h2{ font-size:clamp(1.9rem, 3.4vw, 2.7rem); }
h3{ font-size:clamp(1.3rem, 2vw, 1.6rem); }

p{ margin:0 0 1.1em; color:var(--text-soft); max-width:62ch; }
.lede{ font-size:1.18rem; line-height:1.65; color:var(--text-soft); }

.serif-italic{ font-style:italic; font-family:var(--serif); color:var(--text); }

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

/* ---------- layout helpers ---------- */
.wrap{ max-width:var(--max); margin:0 auto; padding:0 var(--pad); }
.section{ padding:clamp(56px,8vw,120px) 0; }
.section-tight{ padding:clamp(32px,5vw,64px) 0; }
.border-top{ border-top:1px solid var(--line); }
.border-bottom{ border-bottom:1px solid var(--line); }

.grid{ display:grid; gap:var(--pad); }
.g2{ grid-template-columns:repeat(2,1fr); }
.g3{ grid-template-columns:repeat(3,1fr); }
@media (max-width:900px){ .g2,.g3{ grid-template-columns:1fr; } }

.label{
  font-family:var(--sans);
  font-size:.76rem;
  letter-spacing:.06em;
  color:var(--accent);
  font-weight:600;
  display:inline-block;
  margin-bottom:.9em;
}
.meta{
  font-size:.82rem;
  color:var(--text-soft);
  letter-spacing:.01em;
}
.meta span + span::before{ content:"—"; margin:0 .55em; opacity:.5; }

/* ---------- buttons / links ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.85em 1.5em;
  border:1px solid var(--text);
  background:transparent;
  color:var(--text);
  font-family:var(--sans);
  font-size:.92rem;
  font-weight:500;
  text-decoration:none;
  cursor:pointer;
  border-radius:var(--radius);
  transition:background .25s ease, color .25s ease, border-color .25s ease;
}
.btn:hover{ background:var(--text); color:var(--bg); }
.btn-solid{
  background:var(--forest);
  border-color:var(--forest);
  color:#f2ede2;
}
.btn-solid:hover{ background:var(--charcoal); border-color:var(--charcoal); color:#f2ede2; }
.btn-quiet{ border-color:transparent; padding-left:0; padding-right:0; }
.btn-quiet:hover{ background:transparent; color:var(--accent); }

.text-link{
  color:var(--forest);
  text-decoration:underline;
  text-decoration-color:var(--sage);
  text-underline-offset:3px;
  font-weight:500;
}
html[data-theme="dark"] .text-link{ color:var(--sage-pale); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header{
  position:sticky; top:0; z-index:200;
  background:color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px var(--pad);
  max-width:var(--max); margin:0 auto;
}
.brand{
  font-family:var(--serif);
  font-size:1.18rem;
  text-decoration:none;
  display:flex; flex-direction:column; line-height:1.1;
}
.brand strong{ font-weight:500; }
.brand small{ font-family:var(--sans); font-size:.62rem; letter-spacing:.08em; color:var(--text-soft); font-weight:500; }

.nav-links{
  display:flex; gap:28px; list-style:none; margin:0; padding:0;
  font-size:.92rem;
}
.nav-links a{
  text-decoration:none; color:var(--text-soft);
  padding:6px 0; border-bottom:1px solid transparent;
  transition:color .2s ease, border-color .2s ease;
}
.nav-links a:hover, .nav-links a.active{ color:var(--text); border-color:var(--accent); }

.nav-right{ display:flex; align-items:center; gap:16px; }

.theme-toggle{
  border:1px solid var(--line);
  background:none; color:var(--text-soft);
  width:34px; height:34px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:.85rem;
}

.nav-cta{
  border:1px solid var(--forest); color:var(--forest);
  padding:.55em 1.1em; font-size:.85rem; text-decoration:none;
  border-radius:var(--radius); white-space:nowrap;
}
.nav-cta:hover{ background:var(--forest); color:#f2ede2; }
html[data-theme="dark"] .nav-cta{ border-color:var(--sage-pale); color:var(--sage-pale); }
html[data-theme="dark"] .nav-cta:hover{ background:var(--sage-pale); color:var(--charcoal); }

.menu-btn{
  display:none;
  background:none; border:none; cursor:pointer;
  flex-direction:column; gap:5px; width:26px;
}
.menu-btn span{ height:1px; background:var(--text); display:block; }

@media (max-width:880px){
  .nav-links{ display:none; }
  .menu-btn{ display:flex; }
}

.mobile-menu{
  position:fixed; inset:0; background:var(--bg);
  z-index:300; display:none; flex-direction:column;
  padding:22px var(--pad);
}
.mobile-menu.open{ display:flex; }
.mobile-menu-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:40px; }
.mobile-menu-close{ background:none; border:none; font-size:1.6rem; cursor:pointer; color:var(--text); }
.mobile-menu ul{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:22px; }
.mobile-menu a{ font-family:var(--serif); font-size:1.7rem; text-decoration:none; color:var(--text); }
.mobile-menu .nav-cta{ margin-top:36px; align-self:flex-start; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(24px,5vw,72px);
  align-items:center;
  padding:clamp(48px,8vw,88px) 0 clamp(40px,6vw,80px);
}
@media (max-width:920px){ .hero{ grid-template-columns:1fr; } .hero-portrait{ order:-1; } }

.hero-meta{ display:flex; gap:0; flex-wrap:wrap; margin-top:1.6em; font-size:.82rem; color:var(--text-soft); }
.hero-meta span{ padding-right:14px; margin-right:14px; border-right:1px solid var(--line); }
.hero-meta span:last-child{ border-right:none; }

.hero-actions{ display:flex; gap:16px; margin-top:2em; flex-wrap:wrap; }

.portrait-frame{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:4/5;
  border:1px solid var(--line);
}
.portrait-frame figcaption{
  position:absolute; left:0; right:0; bottom:0;
  padding:14px 16px;
  font-size:.74rem; color:#f2ede2;
  background:linear-gradient(0deg, rgba(24,26,20,0.72), transparent);
}

/* Portrait placeholder — an editorial silhouette treatment standing in for photography */
.portrait{
  width:100%; height:100%;
  background:
    radial-gradient(120% 90% at 30% 20%, rgba(242,237,226,0.10), transparent 60%),
    linear-gradient(160deg, var(--forest) 0%, var(--forest-light) 46%, var(--stone) 100%);
  position:relative;
}
.portrait svg{ position:absolute; inset:0; width:100%; height:100%; }

/* Photography frames (real images) */
.photo-frame{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  position:relative;
  background:var(--bg-raised);
}
.photo-frame img{ width:100%; height:100%; object-fit:cover; display:block; }
.photo-tall{ aspect-ratio:4/5; }
.photo-square{ aspect-ratio:1/1; }
.photo-banner{ aspect-ratio:16/9; }
.photo-wide{ aspect-ratio:3/2; }
.photo-caption{ font-size:.78rem; color:var(--text-soft); margin-top:12px; }
figure{ margin:0; }

/* ============================================================
   STATS
   ============================================================ */
.stats{
  display:grid; grid-template-columns:repeat(4,1fr); gap:0;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.stat{ padding:32px 20px; border-right:1px solid var(--line); }
.stat:last-child{ border-right:none; }
.stat .num{ font-family:var(--serif); font-size:clamp(2.2rem,4vw,3.1rem); display:block; color:var(--forest); }
html[data-theme="dark"] .stat .num{ color:var(--sage-pale); }
.stat .stat-label{ font-size:.86rem; color:var(--text-soft); }
@media (max-width:760px){ .stats{ grid-template-columns:repeat(2,1fr); } .stat{ border-bottom:1px solid var(--line); } .stat:nth-child(2n){ border-right:none; } }

/* ============================================================
   CARDS — clinical interests / library / research
   ============================================================ */
.card-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
@media (max-width:900px){ .card-grid{ grid-template-columns:1fr; } }

.card{
  background:var(--bg); padding:36px 30px;
  display:flex; flex-direction:column;
  transition:background .25s ease;
}
.card:hover{ background:var(--bg-raised); }
.card .card-stat{ font-family:var(--serif); font-size:1.9rem; color:var(--forest); margin-top:auto; }
html[data-theme="dark"] .card .card-stat{ color:var(--sage-pale); }
.card-topline{ display:flex; justify-content:space-between; align-items:baseline; margin-bottom:14px; }
.card-index{ font-size:.78rem; color:var(--text-soft); }

/* article / library listing rows */
.article-row{
  display:grid; grid-template-columns:110px 1fr auto; gap:26px;
  padding:26px 0; border-bottom:1px solid var(--line);
  text-decoration:none; color:inherit; align-items:baseline;
}
.article-row:hover h3{ color:var(--forest); }
html[data-theme="dark"] .article-row:hover h3{ color:var(--sage-pale); }
.article-row h3{ margin:.15em 0; transition:color .2s ease; }
.article-row p{ margin:0; }
@media (max-width:700px){ .article-row{ grid-template-columns:1fr; gap:6px; } }

.filters{ display:flex; flex-wrap:wrap; gap:10px; margin:28px 0 8px; }
.filter-btn{
  border:1px solid var(--line); background:transparent; color:var(--text-soft);
  padding:.5em 1em; border-radius:30px; font-size:.85rem; cursor:pointer;
}
.filter-btn.active{ background:var(--forest); border-color:var(--forest); color:#f2ede2; }

.search-field{
  display:flex; align-items:center; gap:12px;
  border:1px solid var(--text); border-radius:var(--radius);
  padding:14px 18px; margin:24px 0;
}
.search-field input{
  border:none; background:none; outline:none; flex:1;
  font-family:var(--sans); font-size:1rem; color:var(--text);
}
.search-field input::placeholder{ color:var(--text-soft); }

/* ============================================================
   TIMELINE (career / research / conferences)
   ============================================================ */
.timeline{ position:relative; padding-left:30px; border-left:1px solid var(--line); }
.timeline-item{ position:relative; padding-bottom:38px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{
  content:""; position:absolute; left:-35px; top:6px;
  width:9px; height:9px; border-radius:50%;
  background:var(--forest); border:2px solid var(--bg);
}
.timeline-year{ font-family:var(--serif); font-size:1.3rem; color:var(--forest); display:block; margin-bottom:.2em; }
html[data-theme="dark"] .timeline-year{ color:var(--sage-pale); }

/* ============================================================
   ASK THE DOCTOR
   ============================================================ */
.ask-panel{
  background:var(--forest); color:#f2ede2;
  padding:clamp(36px,6vw,64px); border-radius:var(--radius);
}
.ask-panel p{ color:#d8e0d6; }
.ask-panel .label{ color:#c7d6c9; }
.ask-search{
  display:flex; gap:12px; align-items:center;
  background:rgba(242,237,226,0.1); border:1px solid rgba(242,237,226,0.35);
  border-radius:var(--radius); padding:14px 18px; margin:22px 0 20px;
}
.ask-search input{
  flex:1; background:none; border:none; outline:none; color:#f2ede2;
  font-family:var(--sans); font-size:1rem;
}
.ask-search input::placeholder{ color:#c7d6c9; }
.chip-row{ display:flex; flex-wrap:wrap; gap:10px; }
.chip{
  border:1px solid rgba(242,237,226,0.4); background:none; color:#f2ede2;
  padding:.55em 1.05em; border-radius:30px; font-size:.86rem; cursor:pointer;
  text-align:left;
}
.chip:hover, .chip.active{ background:rgba(242,237,226,0.15); }

.ask-answer{
  margin-top:30px; background:rgba(242,237,226,0.06);
  border:1px solid rgba(242,237,226,0.25); border-radius:var(--radius);
  padding:28px 30px; display:none;
}
.ask-answer.show{ display:block; }
.ask-answer h4{ color:#f2ede2; font-size:1.15rem; margin-bottom:.3em; }
.ask-answer .a-block{ margin-bottom:18px; }
.ask-answer .a-block:last-child{ margin-bottom:0; }
.ask-answer .a-label{ font-size:.74rem; letter-spacing:.05em; color:#a9c2ad; margin-bottom:.4em; display:block; }
.ask-answer p{ color:#e3e8de; margin-bottom:.4em; }

.disclaimer-box{
  border-left:2px solid var(--accent-warn); padding:14px 20px;
  background:var(--bg-raised); margin:26px 0; font-size:.9rem;
}
.disclaimer-box p{ margin:0; color:var(--text-soft); }
.disclaimer-box strong{ color:var(--text); }

/* ============================================================
   PHILOSOPHY / PRINCIPLES
   ============================================================ */
.principles{ display:grid; grid-template-columns:repeat(3,1fr); gap:40px; }
@media (max-width:860px){ .principles{ grid-template-columns:1fr; } }
.principle .p-index{ font-family:var(--serif); font-size:2.4rem; color:var(--sage); display:block; margin-bottom:.2em; }
html[data-theme="dark"] .principle .p-index{ color:var(--stone); }

/* pull quote / note from doctor */
.note-block{
  display:grid; grid-template-columns:.4fr 1fr; gap:48px; align-items:center;
}
@media (max-width:820px){ .note-block{ grid-template-columns:1fr; } }
.note-quote{ font-family:var(--serif); font-style:italic; font-size:clamp(1.4rem,2.6vw,2rem); line-height:1.4; }
.signature{ font-family:var(--serif); font-style:italic; font-size:1.6rem; margin-top:20px; color:var(--forest); }
html[data-theme="dark"] .signature{ color:var(--sage-pale); }

/* ============================================================
   BLOOD PRESSURE EXPLAINER
   ============================================================ */
.bp-tool{ border:1px solid var(--line); border-radius:var(--radius); padding:clamp(24px,4vw,44px); background:var(--bg-raised); }
.bp-reading{ text-align:center; margin-bottom:8px; }
.bp-reading .bp-num{ font-family:var(--serif); font-size:clamp(3rem,7vw,4.6rem); color:var(--forest); }
html[data-theme="dark"] .bp-reading .bp-num{ color:var(--sage-pale); }
.bp-reading .bp-unit{ font-size:1rem; color:var(--text-soft); }
.bp-status{ text-align:center; font-size:.95rem; margin-bottom:30px; color:var(--text-soft); }
.bp-sliders{ display:flex; flex-direction:column; gap:24px; max-width:520px; margin:0 auto 30px; }
.bp-slider-row label{ display:flex; justify-content:space-between; font-size:.86rem; color:var(--text-soft); margin-bottom:8px; }
.bp-slider-row input[type=range]{ width:100%; accent-color:var(--forest); }
.bp-note{ text-align:center; font-size:.82rem; color:var(--text-soft); font-style:italic; max-width:420px; margin:0 auto; }
.bp-explain{ display:grid; grid-template-columns:1fr 1fr; gap:28px; margin-top:40px; }
@media (max-width:700px){ .bp-explain{ grid-template-columns:1fr; } }

/* ============================================================
   GLOSSARY
   ============================================================ */
.glossary-index{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:30px; }
.glossary-index a{
  width:32px; height:32px; display:flex; align-items:center; justify-content:center;
  border:1px solid var(--line); border-radius:50%; text-decoration:none;
  font-size:.85rem; color:var(--text-soft);
}
.glossary-letter{ font-family:var(--serif); font-size:1.6rem; margin:34px 0 14px; color:var(--forest); }
html[data-theme="dark"] .glossary-letter{ color:var(--sage-pale); }
.glossary-term{ border-bottom:1px solid var(--line); padding:14px 0; cursor:pointer; }
.glossary-term-name{ font-weight:600; }
.glossary-def{ display:none; margin-top:8px; }
.glossary-term.open .glossary-def{ display:block; }

/* ============================================================
   ARTICLE PAGE
   ============================================================ */
.reading-progress{
  position:fixed; top:0; left:0; height:2px; background:var(--forest);
  z-index:400; width:0%;
}
.article-header{ max-width:720px; margin:0 auto; padding-top:24px; }
.article-body{ max-width:720px; margin:0 auto; }
.article-body h2{ margin-top:1.6em; }
.article-body p{ max-width:none; font-size:1.05rem; }
.plain-box{
  background:var(--bg-raised); border-left:2px solid var(--accent-soft);
  padding:18px 22px; margin:26px 0; border-radius:0 var(--radius) var(--radius) 0;
}
.plain-box .label{ margin-bottom:.3em; }
.plain-box p{ margin:0; }
blockquote{
  font-family:var(--serif); font-style:italic; font-size:1.5rem;
  border-left:2px solid var(--forest); padding-left:24px; margin:34px 0;
  color:var(--text);
}
.term{ text-decoration:underline dotted var(--sage); text-underline-offset:3px; cursor:help; }
.related-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; margin-top:20px; }
@media (max-width:800px){ .related-grid{ grid-template-columns:1fr; } }
.related-card{ text-decoration:none; color:inherit; display:block; border-top:1px solid var(--line); padding-top:14px; }
.refs{ font-size:.86rem; color:var(--text-soft); }
.refs li{ margin-bottom:.5em; }

/* ============================================================
   PUBLICATIONS / MEMBERSHIPS
   ============================================================ */
.pub-year{ font-family:var(--serif); font-size:1.8rem; margin:44px 0 18px; }
.pub-item{ border-top:1px solid var(--line); padding:22px 0; }
.pub-item h3{ font-size:1.15rem; margin-bottom:.2em; }
.pub-actions{ display:flex; gap:16px; margin-top:10px; flex-wrap:wrap; }

.admin-note{
  font-size:.8rem; color:var(--text-soft); border:1px dashed var(--line);
  padding:14px 18px; border-radius:var(--radius); margin-top:36px;
}

.membership-list{ list-style:none; padding:0; margin:0; display:grid; grid-template-columns:1fr 1fr; gap:14px; }
@media (max-width:700px){ .membership-list{ grid-template-columns:1fr; } }
.membership-list li{ border-top:1px solid var(--line); padding:16px 0; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
@media (max-width:900px){ .contact-grid{ grid-template-columns:1fr; } }
.contact-cat{ border-top:1px solid var(--line); padding:18px 0; }
.form-field{ margin-bottom:20px; }
.form-field label{ display:block; font-size:.85rem; color:var(--text-soft); margin-bottom:6px; }
.form-field input, .form-field select, .form-field textarea{
  width:100%; border:1px solid var(--line); background:var(--bg-raised);
  padding:12px 14px; font-family:var(--sans); font-size:.95rem; color:var(--text);
  border-radius:var(--radius);
}
.form-field textarea{ min-height:120px; resize:vertical; }
.form-success{ display:none; padding:16px 20px; background:var(--sage-pale); border-radius:var(--radius); margin-top:16px; }
.form-success.show{ display:block; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ background:var(--forest); color:#e9e3d5; padding:clamp(48px,7vw,80px) 0 30px; }
.site-footer h2{ color:#f2ede2; max-width:16ch; }
.site-footer p{ color:#c7d6c9; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-top:50px; }
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
.footer-grid h4{ color:#f2ede2; font-family:var(--sans); font-size:.82rem; letter-spacing:.04em; margin-bottom:14px; }
.footer-grid ul{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px; }
.footer-grid a{ text-decoration:none; color:#c7d6c9; font-size:.92rem; }
.footer-grid a:hover{ color:#f2ede2; }
.footer-bottom{ margin-top:56px; padding-top:24px; border-top:1px solid rgba(233,227,213,0.18); display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px; font-size:.8rem; color:#a9c2ad; }
.footer-disclaimer{ font-size:.78rem; color:#a9c2ad; max-width:70ch; margin-top:8px; }

/* fade-in reveal, single orchestrated pass */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

.eyebrow-plain{ font-size:.9rem; color:var(--text-soft); }
hr.rule{ border:none; border-top:1px solid var(--line); margin:0; }