/* =============================================================
   AIVIO — Editorial Transparency Hub (2026 Edition)
   Design Language: "Museumcore" & "Nature Distilled"
   Features: Organic fluid typography, warm/human-centric palette,
             fine editorial lines, spatial layout, tactile interactions.
   ============================================================= */

:root {
  /* ── 2026 Color Palette: Nature Distilled (Light Mode) ── */
  --bg-primary:       #F9F8F6; /* Warm off-white, paper-like */
  --bg-secondary:     #F2EFEA; /* Slightly deeper tone for contrast */
  --bg-panel:         #FFFFFF; /* Crisp panel background */

  --text-primary:     #2C2A28; /* Deep warm charcoal */
  --text-secondary:   #635E59; /* Muted stone */
  --text-tertiary:    #918B84; /* Light taupe */

  --accent-warm:      #C65B35; /* Terracotta / Burnt Orange */
  --accent-soft:      #EADDCD; /* Soft Sand */
  --accent-hover:     #A64826;

  --border-light:     #E8E4DF;
  --border-dark:      #D1CBC3;

  --shadow-subtle:    0 8px 30px rgba(44, 42, 40, 0.04);
  --shadow-float:     0 12px 40px rgba(44, 42, 40, 0.08);

  /* ── Typography Tokens ── */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body:    'Outfit', system-ui, -apple-system, sans-serif;

  /* ── Spatial Shape & Layout Tokens ── */
  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-pill:  999px;

  /* ── 2026 Fluid & Organic Dynamics ── */
  --ease-organic: cubic-bezier(0.25, 1, 0.3, 1); /* Natural, breathable ease */
  --ease-snappy:  cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ── Dark Mode: Charcoal & Warm Embers ── */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary:       #181716; /* Warm deep charcoal, not absolute black */
    --bg-secondary:     #22201E;
    --bg-panel:         #2A2725;

    --text-primary:     #F4F1ED; /* Soft off-white */
    --text-secondary:   #ACA69F;
    --text-tertiary:    #7D7872;

    --accent-warm:      #DB714C;
    --accent-soft:      #3D3833;
    --accent-hover:     #ED8A68;

    --border-light:     #383430;
    --border-dark:      #4D4843;

    --shadow-subtle:    0 8px 30px rgba(0, 0, 0, 0.2);
    --shadow-float:     0 12px 40px rgba(0, 0, 0, 0.3);
  }
}

/* ── 1. BASE & RESET ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 140px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 300;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease-organic), color 0.4s var(--ease-organic);
}

a {
  color: var(--accent-warm);
  text-decoration: none;
  transition: color 0.2s var(--ease-snappy);
}
a:hover {
  color: var(--accent-hover);
}

/* ── 2. SPATIAL VIEW TRANSITIONS (Editorial Fades) ──────────── */
::view-transition-old(content-area),
::view-transition-new(content-area) {
  animation-duration: 500ms;
  animation-timing-function: var(--ease-organic);
}
::view-transition-old(content-area) {
  animation-name: editorial-fade-out;
}
::view-transition-new(content-area) {
  animation-name: editorial-fade-in;
}

@keyframes editorial-fade-out {
  from { opacity: 1; transform: translateY(0); filter: blur(0); }
  to   { opacity: 0; transform: translateY(-8px); filter: blur(2px); }
}
@keyframes editorial-fade-in {
  from { opacity: 0; transform: translateY(12px); filter: blur(4px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.page {
  view-transition-name: content-area;
  contain: layout style;
  display: none;
}
.page.active {
  display: block;
}


/* ── 3. FLOATING EDITORIAL NAVIGATION ───────────────────────── */
.site-header {
  position: fixed;
  top: 24px;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 0 20px;
  pointer-events: none; /* Let clicks pass through empty space */
}

.main-nav {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 8px 8px 16px;
  background: color-mix(in srgb, var(--bg-panel) 80%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-float);
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.main-nav::-webkit-scrollbar { display: none; }

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: 12px;
  flex-shrink: 0;
  color: var(--text-primary);
}
.nav-brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: cover;
}
.nav-brand span {
  font-family: var(--font-display);
  font-size: 22px;
  font-style: italic;
  letter-spacing: 0.02em;
  transform: translateY(1px); /* Optical alignment for serif */
}

.nav-links-wrapper {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  font-weight: 400;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.3s var(--ease-organic);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-secondary);
  font-weight: 500;
  box-shadow: inset 0 0 0 1px var(--border-light);
}


/* ── 4. LAYOUT CONTAINERS ───────────────────────────────────── */
.main-layout {
  padding-top: max(140px, 15vh);
  padding-bottom: calc(80px + env(safe-area-inset-bottom));
}

.container {
  margin: 0 auto;
  padding: 0 24px;
}

.measure-wide { max-width: 1000px; }
.measure-reading { max-width: 720px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.align-center { text-align: center; }


/* ── 5. MUSEUMCORE TYPOGRAPHY ───────────────────────────────── */
.display-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: 1;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  font-weight: 400;
}

.display-title em {
  font-style: italic;
  color: var(--accent-warm);
  padding-right: 8px; /* Prevents clipping of italic serifs */
}

.document-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 12px;
  font-weight: 400;
}

.document-title em {
  font-style: italic;
  color: var(--text-secondary);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--text-primary);
  margin: 64px 0 24px;
  font-weight: 400;
  line-height: 1.1;
}
.section-title:first-child { margin-top: 0; }

.subsection-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 32px 0 16px;
}

.eyebrow-text {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-warm);
  margin-bottom: 20px;
}

.hero-sub, .intro-text {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin-bottom: 40px;
  font-weight: 300;
}

.reading-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.meta-line {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

h2, h3 { color: var(--text-primary); margin: 32px 0 12px; font-weight: 500; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }

p { margin-bottom: 20px; }
p strong { font-weight: 500; color: var(--text-primary); }


/* ── 6. EDITORIAL DOCUMENTS & LISTS ─────────────────────────── */
.document-body ul {
  padding-left: 0;
  list-style: none;
  margin-bottom: 32px;
}
.document-body ul li {
  position: relative;
  padding: 4px 0 4px 28px;
  color: var(--text-secondary);
}
.document-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15px;
  width: 12px;
  height: 1px;
  background: var(--text-tertiary);
}

.jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 64px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-light);
}
.jump-nav a {
  font-size: 14px;
  padding: 6px 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  background: var(--bg-panel);
}
.jump-nav a:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.editorial-divider {
  border: none;
  height: 1px;
  background: var(--border-light);
  margin: 64px 0;
  width: 100%;
}


/* ── 7. INSIGHT PANELS (Nature Distilled) ───────────────────── */
.insight-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-subtle);
  transition: transform 0.4s var(--ease-organic), box-shadow 0.4s var(--ease-organic);
}

.insight-panel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-float);
}

/* Panel Variations */
.insight-panel.highlight {
  background: var(--accent-soft);
  border-color: transparent;
}
.insight-panel.notice-block {
  background: color-mix(in srgb, var(--bg-panel) 90%, var(--text-tertiary));
}
.insight-panel.tip-panel {
  border-left: 4px solid var(--accent-warm);
}

.panel-layout {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.panel-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--accent-warm);
}

.panel-body { flex: 1; min-width: 0; }
.panel-title { font-size: 1.25rem; margin: 0 0 8px 0; font-family: var(--font-display); font-weight: 400; }
.panel-text { font-size: 1.05rem; color: var(--text-secondary); margin: 0; }

@media (max-width: 600px) {
  .insight-panel { padding: 24px; }
  .panel-layout { flex-direction: column; gap: 16px; }
}


/* ── 8. GRIDS & CARDS ───────────────────────────────────────── */
.grid-editorial {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  margin: 40px 0;
  list-style: none;
  padding: 0;
}

.grid-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all 0.4s var(--ease-organic);
  display: flex;
  flex-direction: column;
}

.grid-card:hover {
  border-color: var(--border-dark);
  background: var(--bg-secondary);
}

.grid-card .card-icon {
  color: var(--accent-warm);
  margin-bottom: 20px;
}

.grid-card .card-title {
  font-size: 1.25rem;
  margin: 0 0 8px 0;
}

.grid-card .card-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Minimal Card Variant */
.grid-card.minimal {
  padding: 24px;
  border-radius: var(--radius-md);
  background: transparent;
  border-color: var(--border-light);
}
.grid-card.minimal:hover {
  background: var(--bg-panel);
}


/* ── 9. ACCORDIONS & LISTS (@starting-style) ────────────────── */
.formula-overview {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin: 40px 0;
}
.formula-statement {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-style: italic;
  color: var(--text-primary);
  margin: 0;
}

.accordion-editorial {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 32px 0 64px;
  list-style: none;
  padding: 0;
}

.accordion-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  cursor: pointer;
  transition: all 0.4s var(--ease-organic);
}

.accordion-item:hover {
  border-color: var(--border-dark);
}

.accordion-item.open {
  background: var(--accent-soft);
  border-color: transparent;
}

.accordion-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-dark);
  color: var(--text-primary);
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
}
.accordion-item.open .accordion-num {
  background: var(--accent-warm);
  border-color: var(--accent-warm);
  color: #fff;
}

.accordion-content { flex: 1; min-width: 0; }
.accordion-title { font-size: 1.15rem; margin: 0; padding-top: 4px;}

/* 2026 Display-Discrete Transition */
.accordion-def {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 12px;
  margin-bottom: 0;

  display: none;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.4s var(--ease-organic), transform 0.4s var(--ease-organic), display 0.4s allow-discrete;
}
.accordion-item.open .accordion-def {
  display: block;
  opacity: 1;
  transform: translateY(0);
  @starting-style {
    opacity: 0;
    transform: translateY(-4px);
  }
}

/* Step List */
.step-list {
  display: grid;
  gap: 16px;
  margin: 32px 0;
  list-style: none;
  padding: 0;
}
.step-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  border-bottom: 1px solid var(--border-light);
}
.step-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--accent-warm);
  opacity: 0.5;
  min-width: 40px;
}
.step-title { margin: 0 0 8px 0; font-size: 1.15rem; }
.step-text { margin: 0; color: var(--text-secondary); }


/* ── 10. CODE QUOTES & ACTIONS ──────────────────────────────── */
.code-quote {
  position: relative;
  background: var(--bg-secondary);
  border-left: 4px solid var(--border-dark);
  padding: 32px;
  margin: 24px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-body); /* Opting for clean sans over monospace for editorial feel */
  font-size: 1.05rem;
  color: var(--text-primary);
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}

.btn-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.btn-group.justify-center { justify-content: center; }
.btn-group.spacer-bottom { margin-bottom: 48px; }

button, .btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s var(--ease-organic);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}
.btn-primary:hover {
  background: var(--accent-warm);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(198, 91, 53, 0.2);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--text-primary);
}
.btn-secondary:hover {
  border-color: var(--text-primary);
  background: var(--bg-panel);
}

.copy-confirm {
  display: none;
  font-size: 14px;
  font-weight: 500;
  color: #5b8763; /* Subtle natural green */
  margin-top: 16px;
  animation: fade-up 0.4s var(--ease-organic) forwards;
}
.copy-confirm.show { display: block; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ── 11. HERO EDITORIAL & TAGS ──────────────────────────────── */
.hero-editorial {
  padding: 60px 0 80px;
  display: flex;
  flex-direction: column;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin-top: 16px;
}

.tag {
  padding: 8px 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.call-to-action {
  padding: 80px 0;
}
.cta-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 16px;
}
.cta-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 32px;
}

/* ── 12. EMPTY STATE (Tips Page) ────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 50vh;
  padding: 80px 20px;
}
.empty-icon {
  color: var(--text-tertiary);
  margin-bottom: 24px;
  opacity: 0.5;
}


/* ── 13. SITE FOOTER ────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border-light);
  padding: 48px 0 calc(48px + env(safe-area-inset-bottom));
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 14px;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link {
  color: var(--text-primary);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--border-dark);
  text-underline-offset: 4px;
}
.footer-link:hover {
  color: var(--accent-warm);
  text-decoration-color: var(--accent-warm);
}


/* ── 14. GOOGLE PLAY BADGE ──────────────────────────────────── */
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.google-play-badge {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 24px 12px 20px;
  background: #1C1B1F;
  border-radius: 14px;
  text-decoration: none;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.35s var(--ease-organic);
  position: relative;
  overflow: hidden;
  min-width: 196px;
  -webkit-tap-highlight-color: transparent;
}

.google-play-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.07) 0%, transparent 55%);
  border-radius: inherit;
  pointer-events: none;
}

.google-play-badge:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.3);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.22);
}

.google-play-badge:active {
  transform: translateY(-1px) scale(1.005);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
}

.play-icon {
  flex-shrink: 0;
  display: block;
  transition: transform 0.3s var(--ease-organic);
}

.google-play-badge:hover .play-icon {
  transform: scale(1.12);
}

.play-badge-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.play-badge-small {
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.72);
  font-family: var(--font-body);
}

.play-badge-large {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #ffffff;
  font-family: var(--font-body);
  white-space: nowrap;
}

/* Dark mode tweak — badge stays dark regardless */
@media (prefers-color-scheme: dark) {
  .google-play-badge {
    background: #2A2830;
    border-color: rgba(255, 255, 255, 0.14);
  }
}


/* ── 15. ENHANCED RESPONSIVE DESIGN ─────────────────────────── */

/* ── Tablet / Large Mobile ── */
@media (max-width: 768px) {
  .main-layout {
    padding-top: max(100px, 13vh);
  }

  .hero-editorial {
    padding: 36px 0 52px;
  }

  .hero-sub,
  .intro-text {
    font-size: 1.1rem;
    margin-bottom: 28px;
  }

  .document-title {
    font-size: clamp(2.2rem, 6vw, 3.5rem);
  }

  .section-title {
    font-size: clamp(1.65rem, 4vw, 2.2rem);
    margin: 52px 0 20px;
  }

  .editorial-divider {
    margin: 48px 0;
  }

  .call-to-action {
    padding: 56px 0;
  }

  .jump-nav {
    margin-bottom: 40px;
    padding-bottom: 20px;
    gap: 8px;
  }

  .jump-nav a {
    font-size: 13px;
    padding: 5px 14px;
  }

  .code-quote {
    padding: 20px 24px;
    font-size: 0.95rem;
  }

  .step-item {
    padding: 20px 0;
    gap: 16px;
  }

  .step-num {
    font-size: 2rem;
    min-width: 32px;
  }

  .accordion-item {
    padding: 20px;
    gap: 16px;
  }
}

/* ── Small Mobile ── */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .main-nav {
    top: 12px;
    gap: 6px;
    padding: 6px 6px 6px 10px;
  }

  .hero-editorial {
    padding: 20px 0 40px;
  }

  .display-title {
    font-size: clamp(2.2rem, 9.5vw, 3.5rem);
    margin-bottom: 20px;
  }

  .hero-sub,
  .intro-text {
    font-size: 1.05rem;
    margin-bottom: 24px;
  }

  .feature-tags {
    gap: 8px;
  }

  .tag {
    font-size: 12px;
    padding: 6px 12px;
  }

  .hero-actions {
    margin-top: 28px;
  }

  .google-play-badge {
    padding: 11px 20px 11px 16px;
    gap: 12px;
  }

  .play-badge-large {
    font-size: 18px;
  }

  .insight-panel {
    padding: 18px 20px;
    border-radius: var(--radius-md);
  }

  .grid-editorial {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 24px 0;
  }

  .grid-card {
    padding: 20px 14px;
    border-radius: var(--radius-md);
  }

  .grid-card .card-title {
    font-size: 1.05rem;
  }

  .grid-card .card-desc {
    font-size: 0.9rem;
  }

  .accordion-item {
    padding: 16px;
    gap: 12px;
  }

  .accordion-num {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }

  .code-quote {
    padding: 16px;
    font-size: 0.92rem;
  }

  .btn-group {
    gap: 10px;
  }

  button,
  .btn-primary,
  .btn-secondary {
    padding: 13px 22px;
    font-size: 14px;
  }

  .site-footer {
    padding: 36px 0 calc(36px + env(safe-area-inset-bottom));
    font-size: 13px;
  }

  .empty-state {
    padding: 60px 20px;
  }
}

/* ── Very Small Mobile (320–380px) ── */
@media (max-width: 380px) {
  .nav-brand span {
    display: none;
  }

  .nav-link {
    padding: 7px 10px;
    font-size: 12.5px;
  }

  .display-title {
    font-size: clamp(1.95rem, 10vw, 2.6rem);
  }

  .grid-editorial {
    grid-template-columns: 1fr;
  }

  .google-play-badge {
    width: 100%;
    justify-content: center;
  }
}


@media print {
  .site-header, .btn-group, .jump-nav, .copy-confirm, .hero-actions { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
  .insight-panel, .grid-card, .accordion-item, .code-quote {
    border: 1px solid #ccc !important;
    background: #fff !important;
    box-shadow: none !important;
    page-break-inside: avoid;
  }
  h1, h2, h3, p, ul li { color: #000 !important; }
}