/* =====================================================================
   AKI Cirrhosis Protocol Dashboard — Elegant Dark Theme
   Academic, calm, deep. Built for a "wow but still serious" feeling.
   ===================================================================== */

:root {
  /* Surfaces */
  --bg: #0a0e10;
  --bg-2: #0d1416;
  --surface: #121a1d;
  --surface-2: #162024;
  --surface-3: #1b272c;
  --elevated: #1a2428;
  --line: rgba(180, 200, 205, 0.12);
  --line-strong: rgba(180, 200, 205, 0.22);

  /* Ink */
  --ink: #eaf2f1;
  --ink-soft: #c5d4d2;
  --muted: #8aa0a0;
  --muted-2: #6c8181;

  /* Accents */
  --teal: #3fb8b1;
  --teal-2: #2c8a85;
  --teal-glow: rgba(63, 184, 177, 0.35);
  --gold: #d9b061;
  --gold-soft: #e8cd8a;
  --burgundy: #c46a78;
  --green: #5bc28a;
  --amber: #e2a857;
  --blue: #6fa8d6;
  --violet: #9c8ad6;
  --red: #e06a6a;

  /* Effects */
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.55);
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.4);
  --ring: 0 0 0 1px var(--line);
  --radius: 14px;
  --radius-sm: 9px;
  --shell: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --serif: "Cormorant Garamond", "Georgia", "Times New Roman", serif;
  --sans: "Inter", "Segoe UI", "Aptos", Tahoma, system-ui, sans-serif;
  --arabic: "Cairo", "Geeza Pro", "Segoe UI", Tahoma, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ambient grain / vignette */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.05;
  background-image: radial-gradient(rgba(255, 255, 255, 0.6) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}

a { color: inherit; }
button, input, select, textarea { font: inherit; }

::selection { background: var(--teal-glow); color: var(--ink); }

/* ---- Typography helpers ---- */
.eyebrow,
.section-kicker,
.panel-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.85rem;
  color: var(--gold-soft);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--teal);
  box-shadow: 0 0 12px var(--teal-glow);
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.08;
}

h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }

.section-lede {
  max-width: 56ch;
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

/* ---- Layout shell ---- */
.section-shell {
  width: min(100%, var(--shell));
  margin: 0 auto;
  padding: 5rem 1.25rem;
}

/* ===================================================================
   Header
   =================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.6rem;
  padding: 0.6rem 1.1rem;
  background: rgba(8, 13, 14, 0.72);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.brand-mark-glyph {
  display: grid;
  place-items: center;
  width: 2.4rem; height: 2.4rem;
  border-radius: 10px;
  color: var(--teal);
  background: radial-gradient(120% 120% at 30% 20%, rgba(63,184,177,0.22), rgba(63,184,177,0.04));
  border: 1px solid rgba(63,184,177,0.28);
  box-shadow: 0 0 22px var(--teal-glow);
}

.brand-mark-text { display: grid; line-height: 1.15; }
.brand-kicker {
  color: var(--gold-soft);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}
.brand-name {
  font-family: var(--serif);
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 14rem;
}
@media (max-width: 480px) {
  .brand-name { max-width: 9.5rem; font-size: 0.92rem; }
}
@media (max-width: 360px) {
  .brand-name { max-width: 7rem; }
}

.nav-links { display: none; align-items: center; gap: 0.15rem; }
.nav-links a {
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 160ms var(--ease), background 160ms var(--ease);
}
.nav-links a:hover, .nav-links a:focus-visible {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
}

/* ---- Mobile hamburger toggle (hidden on desktop) ---- */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.6rem; height: 2.6rem;
  padding: 0;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 1.1rem; height: 2px;
  margin: 0 auto;
  background: var(--ink-soft);
  border-radius: 2px;
  transition: transform 220ms var(--ease), opacity 220ms var(--ease);
}
.nav-toggle:hover { background: rgba(255,255,255,0.05); }

/* ---- Side drawer + overlay ---- */
.side-nav-overlay {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(5, 9, 10, 0.7);
  backdrop-filter: blur(4px);
  opacity: 0; transition: opacity 220ms var(--ease);
}
.side-nav-overlay[hidden] { display: none; }
.side-nav-overlay:not([hidden]) { opacity: 1; }

.side-nav {
  position: fixed; top: 0; right: 0; z-index: 50;
  width: min(78vw, 20rem); height: 100dvh;
  display: flex; flex-direction: column;
  gap: 0.3rem;
  padding: 1.25rem 1rem 1.5rem;
  background: linear-gradient(180deg, #0d1416, #080d0e);
  border-left: 1px solid var(--line-strong);
  box-shadow: -20px 0 60px rgba(0,0,0,0.5);
  transform: translateX(100%);
  transition: transform 320ms cubic-bezier(0.22,1,0.36,1);
  visibility: hidden;
}
.side-nav.is-open { transform: translateX(0); visibility: visible; }
.side-nav-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 0.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.side-nav-close {
  width: 2.4rem; height: 2.4rem;
  background: transparent; border: 1px solid var(--line);
  border-radius: 9px; color: var(--ink-soft);
  font-size: 1.4rem; cursor: pointer;
}
.side-nav-close:hover { background: rgba(255,255,255,0.05); }
.side-nav a {
  padding: 0.85rem 0.6rem;
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600; font-size: 0.95rem;
  border-radius: 9px;
  border-bottom: 1px solid var(--line);
  transition: color 180ms var(--ease), background 180ms var(--ease), padding-left 180ms var(--ease);
}
.side-nav a:last-child { border-bottom: 0; }
.side-nav a:hover, .side-nav a:focus-visible {
  color: var(--ink); background: rgba(63,184,177,0.08);
  padding-left: 0.9rem; outline: none;
}

/* Default (desktop): hide toggle + drawer */
.nav-toggle { display: none; }
.side-nav, .side-nav-overlay { display: none; }

/* ===================================================================
   Hero
   =================================================================== */
.hero-band {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(120% 90% at 80% 0%, rgba(63,184,177,0.16), transparent 60%),
    radial-gradient(90% 70% at 0% 100%, rgba(217,176,97,0.10), transparent 55%),
    linear-gradient(180deg, #0a1517 0%, #08100f 100%);
}

.hero-media, .hero-overlay { position: absolute; inset: 0; }
.hero-media {
  z-index: -2;
  background-image: url("../assets/hero-medical-research.png");
  background-position: center right;
  background-size: cover;
  filter: saturate(0.7) contrast(1.05) brightness(0.5);
  opacity: 0.4;
}
.hero-overlay {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7,14,15,0.96) 0%, rgba(7,14,15,0.86) 42%, rgba(7,14,15,0.35) 100%),
    linear-gradient(0deg, rgba(8,15,16,0.9), rgba(8,15,16,0.05) 48%);
}

.hero-content {
  width: min(100%, var(--shell));
  margin: 0 auto;
  padding: 7rem 1.25rem 5rem;
}
.hero-content h1 {
  max-width: 16ch;
  margin: 1.25rem 0 0;
  font-size: clamp(2.25rem, 6vw, 4.4rem);
  font-weight: 600;
  text-shadow: 0 2px 40px rgba(0,0,0,0.6);
}
.hero-copy {
  max-width: 46rem;
  margin: 1.4rem 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.6;
}

.hero-byline {
  margin: 1.2rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--teal);
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.5;
}
.hero-byline strong { color: var(--gold-soft); font-weight: 600; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 2rem;
}

/* Primary CTA: the paper library — the core deliverable */
.button.primary-cta {
  position: relative;
  color: #07120f;
  background: linear-gradient(180deg, var(--teal), var(--teal-2));
  border-color: var(--teal);
  box-shadow: 0 0 0 1px rgba(63,184,177,0.4), 0 14px 38px rgba(63,184,177,0.28);
  font-size: 1rem;
  padding: 0.85rem 1.4rem;
}
.button.primary-cta:hover {
  background: linear-gradient(180deg, #54cec7, var(--teal));
  box-shadow: 0 0 0 1px rgba(63,184,177,0.6), 0 18px 46px rgba(63,184,177,0.42);
  transform: translateY(-2px);
}

/* Smaller protocol button beside it */
.button.primary {
  color: #07120f;
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  border-color: var(--gold-soft);
  box-shadow: 0 10px 28px rgba(217,176,97,0.22);
  font-size: 0.95rem;
}

/* Ghost resource row */
.hero-actions--resources { margin-top: 0.85rem; gap: 0.5rem; }
.button-ghost {
  min-height: 2.4rem;
  padding: 0.55rem 0.95rem;
  color: var(--ink-soft);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 600;
}
.button-ghost:hover {
  color: var(--ink);
  background: rgba(63,184,177,0.08);
  border-color: rgba(63,184,177,0.4);
  transform: translateY(-1px);
}

.hero-credentials {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
  max-width: 46rem;
  color: var(--muted);
  font-size: 0.86rem;
}
.hero-credentials li {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
}
.hero-credentials li::before {
  content: "";
  width: 14px; height: 1px;
  background: var(--teal);
  flex: none;
  transform: translateY(-3px);
}

.scroll-hint {
  position: absolute;
  bottom: 1.6rem; left: 50%;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 0.5rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  z-index: 2;
}
.scroll-line {
  width: 1px; height: 38px;
  background: linear-gradient(180deg, var(--teal), transparent);
  animation: scrollPulse 2.4s var(--ease) infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0.2); transform-origin: top; opacity: 0.3; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0.2); transform-origin: bottom; opacity: 0.3; }
}

/* ===================================================================
   Buttons
   =================================================================== */
.button, .mini-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.75rem;
  padding: 0.72rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms var(--ease), background 180ms var(--ease),
              border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.button:hover, .button:focus-visible, .mini-button:hover, .mini-button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}
.button.primary {
  color: #0a1413;
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  border-color: var(--gold-soft);
  box-shadow: 0 10px 30px rgba(217,176,97,0.25);
}
.button.primary:hover { box-shadow: 0 14px 38px rgba(217,176,97,0.4); }
.button.secondary {
  color: var(--ink);
  background: rgba(255,255,255,0.04);
  border-color: var(--line-strong);
  backdrop-filter: blur(6px);
}
.button.secondary:hover {
  background: rgba(63,184,177,0.1);
  border-color: rgba(63,184,177,0.45);
}

.mini-button {
  min-height: 2.35rem;
  padding: 0.5rem 0.8rem;
  font-size: 0.82rem;
  border-radius: 8px;
  color: var(--ink);
  background: rgba(63,184,177,0.08);
  border-color: rgba(63,184,177,0.25);
}
.mini-button:hover {
  background: rgba(63,184,177,0.16);
  border-color: rgba(63,184,177,0.5);
  box-shadow: 0 6px 18px rgba(63,184,177,0.18);
}
.mini-button.disabled {
  pointer-events: none;
  color: var(--muted-2);
  background: rgba(255,255,255,0.02);
  border-color: var(--line);
}

/* ===================================================================
   Metrics
   =================================================================== */
.metrics-band { border-top: 1px solid var(--line); }
.metrics-intro {
  padding-bottom: 2rem;
}
.metrics-grid {
  width: min(100%, var(--shell));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  padding: 0 1.25rem 5rem;
}
.metric {
  position: relative;
  display: grid;
  align-content: space-between;
  gap: 0.6rem;
  min-height: 9rem;
  padding: 1.4rem 1.4rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(63,184,177,0.05), transparent 60%),
    var(--surface);
  overflow: hidden;
}
.metric::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent 70%);
  opacity: 0.7;
}
.metric span { display: block; color: var(--muted); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; }
.metric strong {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 5vw, 3.4rem);
  line-height: 1;
  color: var(--ink);
  font-weight: 600;
}
.metric em {
  color: var(--teal);
  font-style: normal;
  font-size: 0.78rem;
  font-weight: 700;
}

/* ===================================================================
   Methodology band (PECO, statistical model, risk-of-bias, forest)
   =================================================================== */
.methods-band {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(70% 40% at 100% 0%, rgba(217,176,97,0.06), transparent 60%),
    var(--bg);
}

.peco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 2rem 0 2.5rem;
}
.peco-card {
  position: relative;
  padding: 1.4rem 1.4rem 1.4rem 4.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.peco-card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: linear-gradient(180deg, var(--teal), var(--gold));
}
.peco-letter {
  position: absolute; left: 1.1rem; top: 1.25rem;
  width: 2.6rem; height: 2.6rem;
  display: grid; place-items: center;
  border-radius: 12px;
  font-family: var(--serif); font-size: 1.5rem; font-weight: 700;
  color: var(--teal);
  background: rgba(63,184,177,0.1);
  border: 1px solid rgba(63,184,177,0.28);
}
.peco-card h3 { font-size: 1.08rem; color: var(--ink); margin-bottom: 0.25rem; }
.peco-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.55; }

.methods-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.methods-card {
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.methods-card header { display: flex; align-items: center; gap: 0.85rem; margin-bottom: 0.9rem; }
.methods-icon {
  display: grid; place-items: center;
  min-width: 2.6rem; height: 2.6rem;
  border-radius: 10px;
  font-family: var(--serif); font-size: 1.15rem; font-weight: 700;
  color: var(--gold-soft);
  background: rgba(217,176,97,0.08);
  border: 1px solid rgba(217,176,97,0.28);
}
.methods-card h3 { font-size: 1.05rem; color: var(--ink); }
.methods-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.55rem; }
.methods-list li {
  position: relative; padding-left: 1.1rem;
  color: var(--ink-soft); font-size: 0.9rem; line-height: 1.55;
}
.methods-list li::before {
  content: ""; position: absolute; left: 0; top: 0.55rem;
  width: 6px; height: 6px; border-radius: 999px; background: var(--teal);
}
.methods-list strong { color: var(--gold-soft); font-weight: 700; }

/* Forest plot schematic */
.forest-chart-wrap {
  margin-top: 2.5rem;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(63,184,177,0.04), transparent 50%),
    var(--surface);
}
.forest-header { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; align-items: flex-end; margin-bottom: 1rem; }
.forest-title { font-size: 1.15rem; color: var(--ink); }
.forest-cap { color: var(--muted); font-size: 0.78rem; max-width: 32ch; }
.forest-plot { width: 100%; height: auto; max-height: 360px; }

.forest-plot .forest-axis line { stroke: rgba(180,200,205,0.25); stroke-width: 1; }
.forest-plot .forest-axis text { fill: var(--muted); }
.forest-plot .tick { font-size: 9px; fill: var(--muted); font-family: var(--sans); text-anchor: middle; }
.forest-plot .forest-study text {
  fill: var(--ink-soft); font-size: 10px; font-family: var(--sans);
}
.forest-plot .forest-study rect { fill: var(--teal-glow); }
.forest-plot .forest-study line { stroke: var(--ink-soft); stroke-width: 1.4; opacity: 0.75; }
.forest-plot .forest-study circle { fill: var(--gold-soft); }
.forest-plot .forest-diamond polygon {
  fill: rgba(63,184,177,0.5); stroke: var(--teal); stroke-width: 1.5;
}
.forest-plot .diamond-label { fill: var(--gold-soft); font-size: 10px; font-weight: 700; font-family: var(--sans); }

@media (min-width: 640px) {
  .peco-grid { grid-template-columns: repeat(2, 1fr); }
  .methods-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .peco-grid { grid-template-columns: repeat(4, 1fr); }
  .methods-cards { grid-template-columns: repeat(4, 1fr); }
  .forest-header { flex-wrap: nowrap; }
}

/* ===================================================================
   Insights / Charts
   =================================================================== */
.insights-band {
  position: relative;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(80% 50% at 50% 0%, rgba(63,184,177,0.05), transparent 60%);
}
.section-heading-row, .paper-tools {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  align-items: end;
  margin-bottom: 2.2rem;
}

.chart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.chart-card {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.02), transparent 40%),
    var(--surface);
  box-shadow: var(--shadow-soft);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}
.chart-card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.chart-card header { display: grid; gap: 0.15rem; }
.chart-card h3 { font-size: 1.2rem; font-weight: 600; color: var(--ink); }
.chart-cap { color: var(--muted); font-size: 0.82rem; }
.chart-wrap { position: relative; width: 100%; height: 240px; }
.chart-card--wide { grid-column: 1 / -1; }
.chart-card--wide .chart-wrap { height: 280px; }

/* ===================================================================
   PRISMA Flow
   =================================================================== */
.flow-band {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(63,184,177,0.03), transparent 30%);
}
.prisma-flow {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}
.prisma-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 1.2rem 1.3rem 1.3rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius-sm);
  background: var(--surface);
  position: relative;
}
.prisma-step strong { font-family: var(--serif); font-size: 1.25rem; color: var(--ink); font-weight: 600; }
.prisma-step .prisma-stage { color: var(--gold-soft); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; }
.prisma-step .prisma-detail { color: var(--ink-soft); font-size: 0.94rem; }
.prisma-step .prisma-count {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
  color: var(--teal);
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
}
.prisma-count small { color: var(--muted); font-family: var(--sans); font-size: 0.78rem; font-weight: 600; }
.prisma-note { margin-top: 2rem; color: var(--muted); font-size: 0.9rem; max-width: 65ch; }

/* ===================================================================
   Protocol
   =================================================================== */
.protocol-band { border-top: 1px solid var(--line); }
.two-column { display: grid; grid-template-columns: 1fr; gap: 2rem; }

.arabic-title {
  margin: 1.1rem 0 0;
  max-width: 46rem;
  color: var(--ink-soft);
  direction: rtl;
  font-family: var(--arabic);
  font-size: 1.15rem;
  line-height: 1.8;
  font-weight: 600;
}

.protocol-meta { display: grid; gap: 0.6rem; margin-top: 1.6rem; color: var(--muted); font-size: 0.95rem; }
.protocol-meta span { padding-left: 0.9rem; border-left: 2px solid var(--line-strong); }

.supervision-panel {
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--burgundy);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(196,106,120,0.06), transparent 60%),
    var(--surface);
  box-shadow: var(--shadow-soft);
}
.supervisor {
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
}
.supervisor:first-of-type { border-top: 0; padding-top: 0; }
.supervisor strong { display: block; font-family: var(--serif); font-size: 1.12rem; color: var(--ink); }
.supervisor span { display: block; color: var(--muted); font-size: 0.9rem; }

.protocol-sections { padding-top: 0; display: grid; gap: 0.85rem; }
.protocol-section {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
}
.protocol-section summary {
  min-height: 3.4rem;
  padding: 1rem 1.2rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--serif);
  font-size: 1.1rem;
}
.protocol-section summary::-webkit-details-marker { display: none; }
.protocol-section summary::after {
  content: "+";
  color: var(--teal);
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform 220ms var(--ease);
}
.protocol-section[open] summary::after { content: "—"; }
.protocol-section[open] summary { border-bottom: 1px solid var(--line); }
.protocol-section div { display: grid; gap: 0.9rem; padding: 1.1rem 1.3rem 1.3rem; color: var(--ink-soft); }
.protocol-section p { margin: 0; line-height: 1.7; }

/* Criteria sub-headings (Types of studies, Inclusion criteria, etc.) */
.protocol-section .criteria-subhead {
  margin: 1.1rem 0 0.2rem;
  color: var(--gold-soft);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.02rem;
}
.protocol-section .criteria-subhead:first-child { margin-top: 0; }

/* Inclusion / exclusion criteria lists inside protocol */
.protocol-section .criteria-list { margin: 0.4rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.5rem; }
.protocol-section .criteria-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}
.protocol-section .criteria-list li::before {
  position: absolute; left: 0; top: 0.1rem;
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.1rem; height: 1.1rem; border-radius: 999px;
  font-family: var(--sans); font-size: 0.66rem; font-weight: 800;
}
.protocol-section .criteria-list.inclusion li::before {
  content: "✓"; color: var(--teal); background: rgba(63,184,177,0.12);
}
.protocol-section .criteria-list.exclusion li::before {
  content: "×"; color: var(--red); background: rgba(224,106,106,0.12);
}

/* References band */
.references-band { padding-top: 1rem; }
.references-band h2 { margin-bottom: 1.4rem; }
.references-list {
  margin: 0; padding: 0; list-style: none;
  display: grid; grid-template-columns: 1fr; gap: 0.85rem;
  counter-reset: ref;
}
.references-list li {
  counter-increment: ref;
  position: relative;
  padding: 1rem 1rem 1rem 3.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.6;
}
.references-list li::before {
  content: counter(ref);
  position: absolute; left: 1rem; top: 1rem;
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.6rem; height: 1.6rem; border-radius: 8px;
  font-family: var(--serif); font-size: 1rem; font-weight: 600;
  color: var(--gold-soft);
  background: rgba(217,176,97,0.1);
  border: 1px solid rgba(217,176,97,0.25);
}

@media (min-width: 768px) {
  .references-list { grid-template-columns: repeat(2, 1fr); }
}

/* Arabic abstract band */
.arabic-abstract-band { padding-top: 1rem; }
.arabic-abstract-title {
  font-family: var(--arabic);
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  font-weight: 700;
  color: var(--gold-soft);
  text-align: right;
  margin-bottom: 1.5rem;
}
.arabic-abstract {
  max-width: 46rem;
  margin-left: auto;
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-right: 4px solid var(--gold);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(217,176,97,0.05), transparent 60%),
    var(--surface);
  font-family: var(--arabic);
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 2;
  text-align: right;
}
.arabic-abstract .abstract-item {
  display: grid; gap: 0.2rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}
.arabic-abstract .abstract-item:last-child { border-bottom: 0; }
.arabic-abstract .abstract-label {
  color: var(--gold-soft);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
.arabic-abstract .abstract-text { color: var(--ink-soft); }
.arabic-abstract .abstract-item--title {
  border-bottom: 2px solid rgba(217,176,97,0.3);
  padding-bottom: 1rem;
}
.arabic-abstract .abstract-item--title .abstract-text {
  color: var(--ink);
  font-weight: 700;
  font-size: 1.06rem;
}
@media (max-width: 639px) {
  .arabic-abstract { padding: 1.3rem; font-size: 0.98rem; margin-right: 0; }
  .arabic-abstract-title { font-size: 1.7rem; }
}

/* ===================================================================
   Evidence map (tiers)
   =================================================================== */
.evidence-band {
  color: var(--ink);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(63,184,177,0.08), transparent 55%),
    var(--bg-2);
}
.evidence-band h2 { color: var(--ink); }

.status-legend { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.status-pill, .tier-pill {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  border: 1px solid var(--line-strong);
}
.status-pill { color: var(--ink-soft); background: rgba(255,255,255,0.04); }

.tier-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-top: 1.6rem;
}
.tier-card {
  min-height: 11.5rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), transparent 50%),
    var(--surface);
  display: grid;
  align-content: start;
  gap: 0.5rem;
}
.tier-card header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.tier-card strong { font-family: var(--serif); font-size: 1.9rem; color: var(--ink); }
.tier-card p { margin: 0.4rem 0 0; color: var(--ink-soft); font-size: 0.92rem; }
.tier-card .tier-action { color: var(--muted); font-size: 0.82rem; font-style: italic; }
.tier-meter { height: 0.4rem; margin-top: 0.7rem; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,0.07); }
.tier-meter span { display: block; height: 100%; background: linear-gradient(90deg, var(--teal), var(--gold)); border-radius: 999px; }

.tier-pill { color: var(--teal); background: rgba(63,184,177,0.1); border-color: rgba(63,184,177,0.3); }

/* ===================================================================
   Papers table
   =================================================================== */
.papers-band { border-top: 1px solid var(--line); }

.tool-controls { display: grid; grid-template-columns: 1fr; gap: 0.75rem; }
.search-box, .select-box {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.search-box input, .select-box select {
  width: 100%;
  min-height: 2.85rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--ink);
  background: var(--surface);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}
.search-box input::placeholder { color: var(--muted-2); }
.search-box input:focus, .select-box select:focus {
  border-color: var(--teal);
  outline: none;
  box-shadow: 0 0 0 3px var(--teal-glow);
}
.select-box select { appearance: none; cursor: pointer; }

.table-summary { margin-top: 1.2rem; color: var(--muted); font-weight: 700; font-size: 0.88rem; }
.table-summary strong { color: var(--ink); }

.records-table-wrap {
  width: 100%;
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}

/* Mobile collapsible records cards (hidden on desktop) */
.records-cards { display: none; }

/* Table/cards toggle by viewport — see media queries below */

/* ---- Mobile record card ---- */
.rc-card {
  margin-top: 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--elevated);
  overflow: hidden;
}
.rc-card + .rc-card { margin-top: 0.6rem; }

.rc-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  grid-template-areas:
    "no   title    sub    expand"
    "quicks quicks quicks quicks";
  gap: 0.25rem 0.6rem;
  align-items: center;
  padding: 0.85rem 1rem;
  cursor: pointer;
  list-style: none;
}
.rc-summary::-webkit-details-marker { display: none; }
.rc-summary::after {
  content: "+";
  grid-area: expand;
  justify-self: end;
  color: var(--teal);
  font-size: 1.3rem;
  font-weight: 300;
  transition: transform 200ms var(--ease);
  align-self: center;
}

/* Always-visible quick action buttons in the collapsed summary */
.rc-quicks {
  grid-area: quicks;
  display: flex;
  gap: 0.45rem;
  margin-top: 0.15rem;
}
.rc-quick {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.1rem; padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.78rem; font-weight: 800; letter-spacing: 0.03em;
  text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: transform 150ms var(--ease), background 150ms var(--ease), border-color 150ms var(--ease);
}
.rc-quick:hover { transform: translateY(-1px); }
.rc-quick--pdf { color: #07120f; background: var(--teal); border-color: var(--teal); }
.rc-quick--pdf:hover { background: #54cec7; }
.rc-quick--src { color: var(--ink); background: rgba(255,255,255,0.05); border-color: var(--line-strong); }
.rc-quick--src:hover { background: rgba(217,176,97,0.12); border-color: rgba(217,176,97,0.45); }
.rc-quick--disabled { color: var(--muted-2); background: rgba(255,255,255,0.02); border-color: var(--line); pointer-events: none; }
/* On very narrow screens, quick buttons share the row evenly */
@media (max-width: 360px) {
  .rc-quicks { flex-wrap: wrap; }
  .rc-quick { flex: 1 1 auto; }
}
.rc-card[open] .rc-summary::after { content: "—"; }
.rc-card[open] .rc-summary { border-bottom: 1px solid var(--line); }

.rc-head { grid-area: no; display: flex; align-items: center; gap: 0.4rem; }
.rc-no {
  font-family: var(--serif); font-weight: 700; color: var(--muted);
  font-size: 0.95rem; min-width: 1.4rem;
}
.rc-tier {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 1.6rem; height: 1.5rem; padding: 0 0.4rem;
  border-radius: 6px; font-size: 0.74rem; font-weight: 800;
  color: var(--teal); background: rgba(63,184,177,0.1);
  border: 1px solid rgba(63,184,177,0.3);
}
.rc-title-line {
  grid-area: title;
  font-weight: 700; color: var(--ink); font-size: 0.94rem;
  line-height: 1.4; max-width: 100%;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.rc-sub { grid-area: sub; justify-self: end; font-size: 0.78rem; color: var(--muted); }

.rc-body { padding: 0.9rem 1rem 1.1rem; display: grid; gap: 0.7rem; }
.rc-focus { margin: 0; color: var(--ink-soft); font-size: 0.87rem; line-height: 1.5; }
.rc-note {
  margin: 0; padding: 0.55rem 0.7rem; border-radius: 8px;
  background: rgba(255,255,255,0.03); border: 1px solid var(--line);
  color: var(--muted); font-size: 0.8rem; line-height: 1.45; font-style: italic;
}
.rc-meta { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.4rem; }
.rc-meta li { display: grid; grid-template-columns: 5.2rem minmax(0, 1fr); gap: 0.5rem; align-items: start; }
.rc-label { color: var(--muted); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; padding-top: 0.1rem; }
.rc-value { color: var(--ink-soft); font-size: 0.86rem; line-height: 1.45; word-break: break-word; }

.records-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.records-table thead { display: none; }
.records-table, .records-table tbody, .records-table tr, .records-table td { display: block; }
.records-table tbody { display: grid; gap: 0.85rem; padding: 0.85rem; }
.records-table tr {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--elevated);
}
.records-table th, .records-table td { padding: 0.9rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.records-table td { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: 0.75rem; align-items: start; }
.records-table td::before {
  content: attr(data-label);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.records-table td:last-child { border-bottom: 0; }
.records-table th { position: sticky; top: 0; z-index: 1; color: var(--ink); background: var(--surface-3); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }
.records-table tbody tr:hover { background: var(--surface-3); border-color: var(--line-strong); }

.study-title { max-width: 45rem; margin: 0; font-weight: 700; color: var(--ink); font-size: 0.96rem; line-height: 1.45; }
.study-meta { margin: 0.3rem 0 0; color: var(--muted); font-size: 0.86rem; }
.study-note { margin: 0.4rem 0 0; color: var(--ink-soft); font-size: 0.86rem; }

/* status text colors */
.status-available { color: var(--green); }
.status-ekb, .status-author-email, .status-pending { color: var(--amber); }
.status-no-paper { color: var(--blue); }
.status-excluded { color: var(--red); }
.status-text { display: inline-block; font-weight: 800; font-size: 0.85rem; }

.link-stack { display: flex; flex-wrap: wrap; gap: 0.45rem; }

/* ===================================================================
   Footer
   =================================================================== */
.site-footer {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 2rem 1.25rem;
  color: var(--muted);
  background:
    linear-gradient(180deg, var(--bg), #050809);
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}
.footer-brand { display: grid; gap: 0.25rem; }
.footer-brand .brand-kicker { color: var(--gold-soft); }
.footer-brand .footer-title { color: var(--ink); font-family: var(--serif); font-size: 1rem; }
.footer-brand .footer-byline { color: var(--muted); font-size: 0.86rem; }

/* ===================================================================
   Mobile-first refinements (≤ 639px) — phones
   =================================================================== */
@media (max-width: 639px) {
  :root { --shell: 100%; }

  .site-header {
    min-height: 3.8rem;
    padding: 0.45rem 0.85rem;
    gap: 0.5rem;
  }
  .brand-mark-glyph { width: 2rem; height: 2rem; }
  .brand-mark-glyph svg { width: 24px; height: 24px; }
  .brand-kicker { font-size: 0.56rem; letter-spacing: 0.22em; }
  .brand-name { font-size: 0.92rem; }

  /* Compact sticky nav-hint on phone */
  .scroll-hint { bottom: 0.9rem; }

  .hero-content { padding: 6rem 1rem 4rem; }
  .hero-content h1 {
    font-size: clamp(2rem, 8vw, 2.6rem);
    max-width: 100%;
  }
  .hero-copy { font-size: 0.98rem; }
  .hero-byline { font-size: 0.95rem; padding-left: 0.85rem; }

  /* Buttons: stack full-width on phone so they're easy to tap */
  .hero-actions { flex-direction: column; align-items: stretch; gap: 0.55rem; }
  .button { width: 100%; min-height: 3rem; }

  .section-shell { padding: 3.5rem 1rem; }
  h2 { font-size: clamp(1.7rem, 7vw, 2.1rem); }
  .section-lede { font-size: 0.95rem; }

  /* Metrics: 2-col on tall phones, single-col on narrow */
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; padding: 0 1rem 3.5rem; }
  .metric { min-height: 7.5rem; padding: 1rem; }
  .metric strong { font-size: 2rem; }
  .metric em { font-size: 0.7rem; }

  /* Charts: single column, shorter, crisp on small screens */
  .chart-grid { grid-template-columns: 1fr; gap: 0.85rem; }
  .chart-card { padding: 1.1rem; gap: 0.7rem; }
  .chart-card h3 { font-size: 1.08rem; }
  .chart-wrap { height: 220px; }
  .chart-card--wide .chart-wrap { height: 240px; }

  /* PRISMA flow: single column on phone */
  .prisma-flow { grid-template-columns: 1fr; gap: 0.7rem; }
  .prisma-step { padding: 1rem 1.1rem; }
  .prisma-step .prisma-count { font-size: 1.3rem; }

  .two-column { gap: 1.5rem; }
  .arabic-title { font-size: 1.05rem; }
  .supervision-panel { padding: 1.2rem; }

  /* Tiers: single column, tighter */
  .tier-grid { grid-template-columns: 1fr; gap: 0.7rem; }
  .tier-card { min-height: 9rem; padding: 1rem; }
  .tier-card strong { font-size: 1.6rem; }

  /* Table controls: stack on phone */
  .paper-tools { gap: 1rem; }
  .tool-controls { grid-template-columns: 1fr; gap: 0.6rem; }
  .search-box input, .select-box select { min-height: 2.7rem; }

  /* Card-mode table: tighten, ensure no horizontal overflow */
  .records-table tbody { padding: 0.7rem; gap: 0.7rem; }
  .records-table td { padding: 0.7rem; grid-template-columns: 4.2rem minmax(0, 1fr); gap: 0.6rem; }
  .records-table td::before { font-size: 0.66rem; }
  .study-title { font-size: 0.92rem; }
  .study-meta { font-size: 0.82rem; }
  .link-stack .mini-button { font-size: 0.78rem; flex: 1 1 auto; }

  /* Footer */
  .site-footer { padding: 1.6rem 1rem; gap: 0.3rem; }
  .footer-brand .footer-title { font-size: 0.92rem; }
  .footer-brand .footer-byline { font-size: 0.8rem; }
}

/* Allow horizontal scroll within the papers table only on phones,
   guarding against any wide content forcing page-level overflow */
@media (max-width: 767px) {
  body { overflow-x: hidden; }
  /* Collapsible cards on mobile; desktop table hidden */
  .records-cards { display: block; }
  .records-table-wrap { display: none; }
  /* Show mobile nav toggle + enable side drawer below 768px */
  .nav-toggle { display: inline-flex; }
  .side-nav, .side-nav-overlay { display: flex; }
}

/* Very narrow phones (< 360px): single-column everything */
@media (max-width: 360px) {
  .metrics-grid { grid-template-columns: 1fr; }
}

@media (min-width: 640px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-card--wide { grid-column: 1 / -1; }
  .tool-controls { grid-template-columns: 1.4fr 0.8fr 0.9fr; }
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .hero-content { padding-inline: 1.5rem; }
  .metrics-grid { padding-inline: 1.5rem; grid-template-columns: repeat(4, 1fr); }
  .two-column { grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr); }
  .tier-grid { grid-template-columns: repeat(2, 1fr); }
  .section-shell { padding-inline: 1.5rem; }
  .site-footer { flex-direction: row; justify-content: space-between; align-items: center; }
  .prisma-flow { grid-template-columns: repeat(2, 1fr); }
  .prisma-flow .prisma-step--full { grid-column: 1 / -1; }
  .records-table-wrap { overflow-x: auto; }
  .records-table { min-width: 58rem; border-collapse: collapse; display: table; }
  .records-table tbody { display: table-row-group; padding: 0; }
  .records-table tr { display: table-row; border: 0; border-radius: 0; background: transparent; }
  .records-table tr:nth-child(even) { background: rgba(255,255,255,0.015); }
  .records-table td { display: table-cell; }
  .records-table td::before { content: none; }
  .records-table thead { display: table-header-group; }
  .records-table th { padding: 1rem; text-align: left; }
  .records-table td:last-child { border-bottom: 1px solid var(--line); }
}

@media (min-width: 1024px) {
  .hero-content h1 { font-size: 4.2rem; }
  .section-heading-row, .paper-tools { grid-template-columns: 0.9fr 1.1fr; }
  .tier-grid { grid-template-columns: repeat(4, 1fr); }
  .chart-grid { grid-template-columns: repeat(3, 1fr); }
  .chart-card--wide { grid-column: 1 / -1; }
}

/* ===================================================================
   Elegant animations — smooth, restrained, never busy
   =================================================================== */

/* Hero entrance: staggered fade-up on load */
@keyframes heroRise {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}
.hero-rise {
  opacity: 0;
  animation: heroRise 900ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--rise-d, 0s);
}

/* Ambient drifting glow inside the hero — calm, slow */
.hero-band::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 60vmax; height: 60vmax;
  left: -10vmax; top: -25vmax;
  background: radial-gradient(circle, rgba(63,184,177,0.12) 0%, transparent 60%);
  filter: blur(8px);
  opacity: 0.7;
  animation: heroDrift 22s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes heroDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1);    opacity: 0.55; }
  50%  { transform: translate3d(8vmax, 4vmax, 0) scale(1.06); opacity: 0.8; }
  100% { transform: translate3d(12vmax, -2vmax, 0) scale(1.1); opacity: 0.5; }
}

/* Eyebrow dot — gentle pulse */
.eyebrow-dot { animation: dotPulse 3.2s ease-in-out infinite; }
@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(63,184,177,0); }
  50%      { box-shadow: 0 0 14px 2px var(--teal-glow); }
}

/* Nav links — elegant underline sweep */
.nav-links a {
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0.9rem; right: 0.9rem; bottom: 0.35rem;
  height: 1.5px;
  background: var(--teal);
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: left center;
  opacity: 0;
  transition: transform 320ms var(--ease), opacity 320ms var(--ease);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
  opacity: 0.9;
}

/* Brand glyph — soft glow on hover */
.brand-mark-glyph { transition: box-shadow 400ms var(--ease); }
.brand-mark:hover .brand-mark-glyph {
  box-shadow: 0 0 26px var(--teal-glow), 0 0 0 1px rgba(63,184,177,0.4);
}

/* Buttons — refined press feedback */
.button:active, .mini-button:active, .rc-quick:active {
  transform: translateY(0) scale(0.985);
}

/* Metric cards — number count-up style entrance handled by reveal;
   add a subtle gradient shimmer on the top accent */
.metric::before { animation: metricShine 6s ease-in-out infinite; }
@keyframes metricShine {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; }
}

/* Chart cards — gentle lift on hover (already on transform) plus
   accent line top-left growing in */
.chart-card { position: relative; }
.chart-card::after {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 2.5rem; height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent);
  border-radius: 0 2px 2px 0;
  transform: scaleX(0); transform-origin: left;
  transition: transform 480ms var(--ease);
}
.chart-card:hover::after { transform: scaleX(1); }

/* Tier cards — meter bar sweep on reveal */
.tier-meter span { animation: tierSweep 1200ms var(--ease) both; }
@keyframes tierSweep {
  from { width: 0; }
}

/* Forest plot — draw the pooled diamond last for emphasis */
.forest-diamond polygon {
  animation: diamondIn 700ms cubic-bezier(0.22,1,0.36,1) 700ms both;
}
@keyframes diamondIn {
  from { opacity: 0; transform: scale(0.6); transform-origin: 276px 272px; }
  to   { opacity: 1; transform: none; }
}

/* PRISMA flow connectors — left rail grows on reveal */
.prisma-step { position: relative; }
.prisma-step::before {
  content: "";
  position: absolute; left: -3px; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--teal), transparent 80%);
  transform: scaleY(0); transform-origin: top;
  transition: transform 700ms var(--ease);
}
.prisma-step:hover::before,
.prisma-step:focus-within::before { transform: scaleY(1); }

/* Smooth details open: animate the body */
.protocol-section div,
.rc-card .rc-body {
  animation: detailsOpen 360ms cubic-bezier(0.22,1,0.36,1) both;
}
@keyframes detailsOpen {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: none; }
}

/* Reference cards — ink-left accent slides in on hover */
.references-list li { position: relative; overflow: hidden; }
.references-list li::after {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--gold);
  transform: scaleY(0); transform-origin: top;
  transition: transform 300ms var(--ease);
}
.references-list li:hover::after { transform: scaleY(1); }

/* Selection — smooth color transition kept; no harsh highlight */
::selection { background: var(--teal-glow); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .hero-rise { opacity: 1; }
}