/*
================================================================
IQ Intel · Home page styles
================================================================
Built on top of iqintel-tokens.css. This file contains layout
and component styles specific to the home page. The tokens file
must be loaded first.

Section order matches the HTML:
  1. Nav
  2. Hero (with hero video)
  3. What IQ Intel provides
  4. Methodology (numbered 01/02/03)
  5. What the data reveals
  6. Benchmarks (NMC811 + magnet)
  7. Priority sectors
  8. Signals & Working Notes
  9. Confidential contact
  10. Footer
================================================================
*/


/* ---------------- Page shell ---------------- */

body { background: var(--iq-bg-primary); }

main { display: block; }


/* ---------------- 1. Nav ---------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: var(--iq-border-thin);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--iq-space-5);
  padding: var(--iq-space-4) 0;
}

.nav-brand {
  font-family: var(--iq-font-serif);
  font-size: var(--iq-h4);
  color: var(--iq-text-primary);
  letter-spacing: -0.01em;
  text-decoration: none;
}
.nav-brand:hover { color: var(--iq-text-primary); }

.nav-links {
  display: flex;
  gap: var(--iq-space-5);
  align-items: center;
}

.nav-links a {
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body-sm);
  color: var(--iq-text-body);
  font-weight: 400;
  text-decoration: none;
  transition: color var(--iq-dur-fast) var(--iq-ease);
}
.nav-links a:hover { color: var(--iq-accent); }

.nav-cta {
  font-size: var(--iq-body-sm);
}

.nav-menu-btn {
  display: none;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
  color: var(--iq-text-primary);
}


/* ---------------- 2. Hero ---------------- */

.hero {
  padding-top: var(--iq-space-8);
  padding-bottom: var(--iq-section-y);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--iq-space-7);
  align-items: center;
}

.hero-copy .iq-eyebrow {
  display: block;
  margin-bottom: var(--iq-space-4);
}

.hero-copy h1 {
  font-size: var(--iq-h1);
  line-height: var(--iq-lh-tight);
  margin-bottom: var(--iq-space-5);
  max-width: 540px;
}

.hero-lede {
  font-size: var(--iq-body-lg);
  line-height: 1.55;
  color: var(--iq-text-body);
  max-width: 480px;
  margin-bottom: var(--iq-space-6);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--iq-space-3);
}


/* ---------------- Hero video ---------------- */

.hero-video {
  margin: 0;
  background: var(--iq-bg-secondary);
  border-radius: var(--iq-radius-xl);
  border: var(--iq-border-thin);
  overflow: hidden;
}

.hero-video-frame {
  aspect-ratio: 4 / 3;
  background: var(--iq-bg-secondary);
  overflow: hidden;
}

.hero-video-player {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  vertical-align: middle;
}

.hero-video-caption {
  padding: var(--iq-space-3) var(--iq-space-4);
  border-top: var(--iq-border-thin);
  background: var(--iq-bg-primary);
  font-size: var(--iq-caption);
  color: var(--iq-text-secondary);
  line-height: 1.5;
}


/* ---------------- Hero slideshow (legacy — other sections) ---------------- */

.slideshow {
  background: var(--iq-bg-secondary);
  border-radius: var(--iq-radius-xl);
  border: var(--iq-border-thin);
  overflow: hidden;
}

.slideshow-frame {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--iq-bg-secondary);
  overflow: hidden;
}

.slideshow-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--iq-dur-slow) var(--iq-ease);
  pointer-events: none;
}

.slideshow-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.slideshow-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Placeholder shown when image hasn't loaded yet — also styles the dev
   placeholders before real images are dropped in. */
.slideshow-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--iq-space-2);
  color: var(--iq-text-tertiary);
  font-family: var(--iq-font-mono);
  font-size: var(--iq-caption);
  text-align: center;
  padding: var(--iq-space-5);
}

.slideshow-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--iq-space-3) var(--iq-space-4);
  border-top: var(--iq-border-thin);
  background: var(--iq-bg-primary);
}

.slideshow-caption {
  font-size: var(--iq-caption);
  color: var(--iq-text-secondary);
  flex: 1;
  line-height: 1.5;
}

.slideshow-nav {
  display: flex;
  align-items: center;
  gap: var(--iq-space-3);
}

.slideshow-counter {
  font-family: var(--iq-font-mono);
  font-size: var(--iq-caption);
  color: var(--iq-text-secondary);
  min-width: 36px;
  text-align: center;
}

.slideshow-btn {
  background: transparent;
  border: var(--iq-border-thin);
  border-radius: var(--iq-radius-md);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--iq-text-body);
  transition: border-color var(--iq-dur-fast) var(--iq-ease),
              color var(--iq-dur-fast) var(--iq-ease);
}
.slideshow-btn:hover {
  border-color: var(--iq-border-strong);
  color: var(--iq-accent);
}
.slideshow-btn:focus {
  outline: none;
  box-shadow: var(--iq-focus-ring);
}


/* ---------------- 3. What IQ Intel provides ---------------- */

.provides .prose {
  max-width: var(--iq-prose);
  margin-bottom: var(--iq-space-7);
}


/* ---------------- 4. Methodology ---------------- */

.methodology {
  background: var(--iq-bg-secondary);
}

.methodology-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--iq-space-4);
  margin-bottom: var(--iq-space-7);
}

.method-card {
  background: var(--iq-bg-primary);
  border: var(--iq-border-thin);
  border-radius: var(--iq-radius-lg);
  padding: var(--iq-space-5);
}

.method-num {
  font-family: var(--iq-font-serif);
  font-size: 36px;
  line-height: 1;
  font-weight: 400;
  color: var(--iq-accent);
  margin-bottom: var(--iq-space-4);
  letter-spacing: -0.02em;
}

.method-title {
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body);
  font-weight: 500;
  color: var(--iq-text-primary);
  margin-bottom: var(--iq-space-2);
}

.method-body {
  font-size: var(--iq-body-sm);
  color: var(--iq-text-secondary);
  line-height: 1.6;
}

.methodology-advantage {
  border-top: var(--iq-border-thin);
  padding-top: var(--iq-space-6);
}

.methodology-advantage .iq-eyebrow {
  display: block;
  margin-bottom: var(--iq-space-3);
}

.methodology-advantage p {
  font-size: var(--iq-body-lg);
  line-height: 1.55;
  max-width: var(--iq-prose);
  color: var(--iq-text-body);
}


/* ---------------- 5. What the data reveals ---------------- */

.reveals .reveals-intro {
  max-width: var(--iq-prose);
  margin-bottom: var(--iq-space-6);
}

.reveals-intro .iq-eyebrow {
  display: block;
  margin-bottom: var(--iq-space-3);
}

.reveals-intro h2 {
  margin-bottom: var(--iq-space-4);
}

.reveals-intro p {
  font-size: var(--iq-body-lg);
  line-height: 1.55;
}

.reveals-image {
  max-width: 900px;
  margin: 0 0 var(--iq-space-4);
  border-radius: var(--iq-radius-lg);
  overflow: hidden;
  border: var(--iq-border-thin);
}
.reveals-image img {
  display: block;
  width: 100%;
  height: auto;
}

.reveals-caption {
  max-width: var(--iq-prose);
}


/* ---------------- 6. Benchmarks ---------------- */

.benchmarks {
  background: var(--iq-bg-secondary);
}

.benchmarks-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--iq-space-5);
  margin-bottom: var(--iq-space-6);
  flex-wrap: wrap;
}

.benchmarks-header-text { max-width: var(--iq-prose); }
.benchmarks-header-text .iq-eyebrow { display: block; margin-bottom: var(--iq-space-3); }
.benchmarks-header-text h2 { margin-bottom: var(--iq-space-3); }
.benchmarks-header-text p { color: var(--iq-text-body); font-size: var(--iq-body); }

.benchmarks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--iq-space-4);
}

.bench-card {
  background: var(--iq-bg-primary);
  border: var(--iq-border-thin);
  border-radius: var(--iq-radius-lg);
  padding: var(--iq-space-6);
  display: flex;
  flex-direction: column;
  gap: var(--iq-space-4);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--iq-dur) var(--iq-ease),
              box-shadow var(--iq-dur) var(--iq-ease);
}

.bench-card:hover {
  border-color: var(--iq-border-strong);
  box-shadow: var(--iq-shadow-hover);
  color: inherit;
}

.bench-card.is-forthcoming {
  background: var(--iq-bg-secondary);
}
.bench-card.is-forthcoming:hover {
  border-color: var(--iq-border);
  box-shadow: none;
}

.bench-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--iq-space-3);
}

.bench-head .iq-eyebrow {
  display: block;
  margin-bottom: var(--iq-space-2);
}

.bench-head h3 {
  font-family: var(--iq-font-serif);
  font-size: var(--iq-h3);
  color: var(--iq-text-primary);
  letter-spacing: var(--iq-ls-heading);
}

.bench-body {
  font-size: var(--iq-body-sm);
  color: var(--iq-text-body);
  line-height: 1.6;
}

.bench-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--iq-space-3);
  padding: var(--iq-space-3) 0;
  border-top: var(--iq-border-thin);
  border-bottom: var(--iq-border-thin);
}

.bench-meta-item {
  font-size: var(--iq-caption);
  color: var(--iq-text-secondary);
  line-height: 1.4;
}

.bench-meta-item strong {
  display: block;
  color: var(--iq-text-primary);
  font-family: var(--iq-font-mono);
  font-size: var(--iq-body-sm);
  font-weight: 500;
  margin-top: 2px;
}

.bench-cta {
  align-self: flex-start;
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body-sm);
  font-weight: 500;
  color: var(--iq-accent);
}

.bench-cta-disabled {
  color: var(--iq-text-tertiary);
  cursor: default;
}

.bench-tag {
  display: inline-block;
  font-family: var(--iq-font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--iq-accent);
  background: var(--iq-bg-tint);
  padding: 4px 10px;
  border-radius: var(--iq-radius-sm);
  white-space: nowrap;
}

.bench-tag--gray {
  color: var(--iq-text-secondary);
  background: var(--iq-bg-secondary);
  border: var(--iq-border-thin);
}


/* ---------------- 7. Priority sectors ---------------- */

.sectors-header {
  margin-bottom: var(--iq-space-6);
  max-width: var(--iq-prose);
}
.sectors-header .iq-eyebrow { display: block; margin-bottom: var(--iq-space-3); }
.sectors-header h2 { margin-bottom: var(--iq-space-3); }
.sectors-header p { color: var(--iq-text-body); }

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--iq-space-4);
}

.sector-card {
  background: var(--iq-bg-primary);
  border: var(--iq-border-thin);
  border-radius: var(--iq-radius-lg);
  padding: var(--iq-space-5);
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--iq-dur) var(--iq-ease),
              box-shadow var(--iq-dur) var(--iq-ease);
}

.sector-card:hover {
  border-color: var(--iq-border-strong);
  box-shadow: var(--iq-shadow-hover);
  color: inherit;
}

.sector-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--iq-radius-md);
  background: var(--iq-bg-tint);
  color: var(--iq-accent);
  font-family: var(--iq-font-serif);
  font-size: 20px;
  margin-bottom: var(--iq-space-4);
}

.sector-icon-text {
  font-family: var(--iq-font-sans);
  font-size: 14px;
  font-weight: 500;
}

.sector-title {
  font-family: var(--iq-font-serif);
  font-size: var(--iq-h4);
  color: var(--iq-text-primary);
  margin-bottom: var(--iq-space-2);
  letter-spacing: var(--iq-ls-heading);
}

.sector-body {
  font-size: var(--iq-body-sm);
  color: var(--iq-text-secondary);
  line-height: 1.55;
  margin-bottom: var(--iq-space-4);
}

.sector-link {
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body-sm);
  color: var(--iq-accent);
  font-weight: 500;
}


/* ---------------- 8. Signals & Working Notes ---------------- */

.publications {
  background: var(--iq-bg-secondary);
}

.publications-header {
  margin-bottom: var(--iq-space-6);
  max-width: var(--iq-prose);
}
.publications-header .iq-eyebrow { display: block; margin-bottom: var(--iq-space-3); }
.publications-header h2 { margin-bottom: var(--iq-space-3); }
.publications-header p { color: var(--iq-text-body); }

.publications-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--iq-space-6);
}

.pub-column {
  display: flex;
  flex-direction: column;
}

.pub-column-head {
  margin-bottom: var(--iq-space-4);
  padding-bottom: var(--iq-space-3);
  border-bottom: var(--iq-border-thin);
}

.pub-column-head h3 {
  font-family: var(--iq-font-serif);
  font-size: var(--iq-h3);
  color: var(--iq-text-primary);
  letter-spacing: var(--iq-ls-heading);
  margin-bottom: var(--iq-space-2);
}

.pub-column-head .pub-column-desc {
  font-size: var(--iq-body-sm);
  color: var(--iq-text-secondary);
  line-height: 1.5;
}

.pub-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--iq-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--iq-space-3);
}

.pub-item {
  background: var(--iq-bg-primary);
  border: var(--iq-border-thin);
  border-radius: var(--iq-radius-lg);
  padding: var(--iq-space-4) var(--iq-space-5);
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: baseline;
  gap: var(--iq-space-3);
  transition: border-color var(--iq-dur) var(--iq-ease),
              box-shadow var(--iq-dur) var(--iq-ease);
}

.pub-item:hover {
  border-color: var(--iq-border-strong);
  box-shadow: var(--iq-shadow-hover);
  color: inherit;
}

.pub-item-num {
  font-family: var(--iq-font-mono);
  font-size: var(--iq-caption);
  color: var(--iq-text-tertiary);
  min-width: 24px;
  flex-shrink: 0;
}

.pub-item-title {
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body-sm);
  font-weight: 400;
  color: var(--iq-text-primary);
  line-height: 1.5;
}

.pub-item.is-forthcoming {
  background: transparent;
  border-style: dashed;
}
.pub-item.is-forthcoming:hover {
  border-color: var(--iq-border);
  box-shadow: none;
}
.pub-item.is-forthcoming .pub-item-title {
  color: var(--iq-text-tertiary);
}

.pub-view-all {
  align-self: flex-start;
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body-sm);
  color: var(--iq-accent);
  font-weight: 500;
  text-decoration: none;
}


/* ---------------- 9. Contact ---------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: var(--iq-space-7);
  align-items: start;
}

.contact-posture .iq-eyebrow { display: block; margin-bottom: var(--iq-space-3); }
.contact-posture h2 { margin-bottom: var(--iq-space-4); }

.contact-posture-intro {
  font-size: var(--iq-body-lg);
  line-height: 1.55;
  color: var(--iq-text-body);
  margin-bottom: var(--iq-space-6);
}

.contact-callout {
  background: var(--iq-bg-tint);
  border-radius: var(--iq-radius-lg);
  padding: var(--iq-space-5);
}

.contact-callout-item {
  margin-bottom: var(--iq-space-4);
}
.contact-callout-item:last-child { margin-bottom: 0; }

.contact-callout-label {
  font-family: var(--iq-font-sans);
  font-size: var(--iq-eyebrow);
  font-weight: 500;
  letter-spacing: var(--iq-ls-eyebrow);
  text-transform: uppercase;
  color: var(--iq-accent);
  margin-bottom: var(--iq-space-2);
}

.contact-callout-text {
  font-size: var(--iq-body-sm);
  color: var(--iq-text-body);
  line-height: 1.55;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--iq-space-4);
}

.contact-form-header {
  margin-bottom: var(--iq-space-2);
}
.contact-form-header h3 {
  margin-bottom: var(--iq-space-2);
}
.contact-form-header p {
  font-size: var(--iq-body-sm);
  color: var(--iq-text-secondary);
}

/* Honeypot field — hidden from human users */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.status {
  margin: 0;
  font-size: var(--iq-body-sm);
  line-height: 1.5;
}
.status.success {
  color: var(--iq-success);
}
.status.error {
  color: var(--iq-danger);
}


/* ---------------- 10. Footer ---------------- */

.footer {
  background: var(--iq-bg-primary);
  border-top: var(--iq-border-thin);
  padding: var(--iq-space-7) 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--iq-space-5);
  flex-wrap: wrap;
}

.footer-brand-block .nav-brand {
  display: block;
  margin-bottom: var(--iq-space-3);
}

.footer-tagline {
  font-size: var(--iq-caption);
  color: var(--iq-text-secondary);
  max-width: 480px;
  line-height: 1.55;
}

.footer-meta {
  font-size: var(--iq-caption);
  color: var(--iq-text-tertiary);
}


/* ---------------- Responsive ---------------- */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--iq-space-6); }
  .methodology-cards { grid-template-columns: 1fr; }
  .benchmarks-grid { grid-template-columns: 1fr; }
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .publications-grid { grid-template-columns: 1fr; gap: var(--iq-space-7); }
  .contact-grid { grid-template-columns: 1fr; gap: var(--iq-space-6); }
  .bench-meta { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: inline-flex; }
  .sectors-grid { grid-template-columns: 1fr; }
  .bench-meta { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 32px; }
  .benchmarks-header { flex-direction: column; align-items: flex-start; }
  .benchmarks-grid {
    gap: var(--iq-space-4);
  }
  .benchmarks-grid > * {
    min-width: 0;
  }
  .bench-card {
    padding: var(--iq-space-4);
  }
  .bench-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .bench-tag {
    white-space: normal;
  }
}


/*
================================================================
NAV — Blog dropdown + mobile hierarchy
================================================================
Appended. Nothing above this point was modified.

Desktop (>600px): Blog item in .nav-links opens a click-OR-hover
                  dropdown with Signals + Working Notes columns.
Mobile (≤600px):  .nav-links hidden (existing rule, line 794);
                  .nav-menu-btn shown (existing rule);
                  hamburger toggles .nav.is-open which reveals
                  .nav-mobile-panel — tap-to-expand groups inside.

================================================================ */

/* -------- Desktop dropdown trigger -------- */
.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  font-family: var(--iq-font-sans);
  font-size: var(--iq-body-sm);
  font-weight: 400;
  color: var(--iq-text-body);
  line-height: var(--iq-lh-ui);
  cursor: pointer;
  transition: color var(--iq-dur-fast) var(--iq-ease);
}
.nav-dropdown-trigger:hover,
.nav-dropdown.is-open .nav-dropdown-trigger {
  color: var(--iq-accent);
}
.nav-dropdown-trigger:focus-visible {
  outline: none;
  box-shadow: var(--iq-focus-ring);
  border-radius: var(--iq-radius-sm);
}

.nav-dropdown-caret {
  transition: transform var(--iq-dur) var(--iq-ease);
}
.nav-dropdown.is-open .nav-dropdown-caret {
  transform: rotate(180deg);
}

/* -------- Desktop dropdown panel -------- */
.nav-dropdown-panel {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--iq-space-3);
  min-width: 560px;
  background: var(--iq-bg-primary);
  border: var(--iq-border-1);
  border-radius: var(--iq-radius-lg);
  box-shadow: 0 8px 32px rgba(10, 10, 10, 0.08);
  padding: var(--iq-space-5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--iq-dur) var(--iq-ease),
              transform var(--iq-dur) var(--iq-ease),
              visibility var(--iq-dur) var(--iq-ease);
  z-index: 60;
}
.nav-dropdown.is-open .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Invisible bridge so the cursor can travel from trigger to panel
   without crossing dead space that would trigger mouseleave */
.nav-dropdown-panel::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--iq-space-3));
  left: 0;
  right: 0;
  height: var(--iq-space-3);
}

.nav-dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--iq-space-5);
}

.nav-dropdown-group-title {
  display: block;
  font-family: var(--iq-font-sans);
  font-size: var(--iq-eyebrow);
  font-weight: 500;
  letter-spacing: var(--iq-ls-eyebrow);
  text-transform: uppercase;
  color: var(--iq-accent);
  text-decoration: none;
  padding-bottom: var(--iq-space-3);
  margin-bottom: var(--iq-space-3);
  border-bottom: var(--iq-border-thin);
  transition: color var(--iq-dur-fast) var(--iq-ease);
}
.nav-dropdown-group-title:hover {
  color: var(--iq-accent-hover);
}
.nav-dropdown-group-sub {
  display: block;
  margin-top: 4px;
  font-size: var(--iq-body-sm);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--iq-text-secondary);
}
.nav-dropdown-group-title:hover .nav-dropdown-group-sub {
  color: var(--iq-text-body);
}

.nav-dropdown-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--iq-space-2);
}
.nav-dropdown-list a {
  display: block;
  font-size: var(--iq-body-sm);
  color: var(--iq-text-body);
  text-decoration: none;
  line-height: 1.45;
  padding: 4px 0;
  transition: color var(--iq-dur-fast) var(--iq-ease);
}
.nav-dropdown-list a:hover {
  color: var(--iq-accent);
}
.nav-dropdown-list .is-forthcoming {
  display: block;
  font-size: var(--iq-body-sm);
  color: var(--iq-text-tertiary);
  font-style: italic;
  padding: 4px 0;
  cursor: default;
}

/* On medium-narrow desktop widths the panel might run off the edge.
   Collapse to single column below the container width. */
@media (max-width: 900px) {
  .nav-dropdown-panel {
    min-width: 360px;
  }
  .nav-dropdown-grid {
    grid-template-columns: 1fr;
    gap: var(--iq-space-4);
  }
}


/* -------- Mobile panel (hidden by default everywhere) -------- */
.nav-mobile-panel {
  display: none;
}

@media (max-width: 600px) {

  /* Shrink the brand on mobile */
  .nav-brand img {
    height: 48px !important;
    width: auto;
  }

  /* Hide the desktop CTA — it moves into the mobile panel */
  .nav-cta {
    display: none;
  }

  /* Tighter spacing in the bar */
  .nav-inner {
    gap: var(--iq-space-3);
    margin: 1em;
  }

  /* Hamburger styling (existing rule shows it; we just polish it) */
  .nav-menu-btn {
    border-radius: var(--iq-radius-sm);
    transition: background var(--iq-dur-fast) var(--iq-ease);
  }
  .nav-menu-btn:hover {
    background: var(--iq-bg-secondary);
  }
  .nav-menu-btn:focus-visible {
    outline: none;
    box-shadow: var(--iq-focus-ring);
  }

  /* Mobile panel surface */
  .nav-mobile-panel {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: saturate(140%) blur(10px);
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    border-bottom: var(--iq-border-thin);
    border-top: var(--iq-border-thin);
    padding: var(--iq-space-3) var(--iq-space-5) var(--iq-space-5);
    max-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    opacity: 0;
    transition: max-height var(--iq-dur-slow) var(--iq-ease),
                opacity var(--iq-dur) var(--iq-ease),
                padding var(--iq-dur-slow) var(--iq-ease);
  }
  .nav.is-open .nav-mobile-panel {
    max-height: calc(100vh - 80px);
    opacity: 1;
  }

  /* Top-level links and group-toggles share base style */
  .nav-mobile-panel > a,
  .nav-mobile-group-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--iq-space-3) 0;
    font-family: var(--iq-font-sans);
    font-size: var(--iq-body);
    font-weight: 400;
    color: var(--iq-text-body);
    text-decoration: none;
    text-align: left;
    background: transparent;
    border: 0;
    border-bottom: var(--iq-border-thin);
    cursor: pointer;
    transition: color var(--iq-dur-fast) var(--iq-ease);
  }
  .nav-mobile-panel > a:hover,
  .nav-mobile-group-toggle:hover,
  .nav-mobile-panel > a.is-active {
    color: var(--iq-accent);
  }

  /* Caret rotation when expanded */
  .nav-mobile-caret {
    transition: transform var(--iq-dur) var(--iq-ease);
    flex-shrink: 0;
  }
  .nav-mobile-group.is-expanded > .nav-mobile-group-toggle .nav-mobile-caret,
  .nav-mobile-subgroup.is-expanded > .nav-mobile-subgroup-toggle .nav-mobile-caret {
    transform: rotate(180deg);
  }

  /* Group children — collapsed by default */
  .nav-mobile-group-children,
  .nav-mobile-subgroup-children {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--iq-dur-slow) var(--iq-ease);
  }
  .nav-mobile-group.is-expanded > .nav-mobile-group-children {
    max-height: 2000px;
  }
  .nav-mobile-subgroup.is-expanded > .nav-mobile-subgroup-children {
    max-height: 1000px;
  }

  /* Subgroup toggle — indented one level */
  .nav-mobile-subgroup-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--iq-space-3) 0 var(--iq-space-3) var(--iq-space-4);
    font-family: var(--iq-font-sans);
    font-size: var(--iq-body-sm);
    font-weight: 500;
    color: var(--iq-text-primary);
    background: transparent;
    border: 0;
    border-bottom: var(--iq-border-thin);
    text-align: left;
    cursor: pointer;
  }
  .nav-mobile-subgroup:last-child > .nav-mobile-subgroup-toggle {
    border-bottom: 0;
  }

  /* Leaf links inside a subgroup — indented two levels */
  .nav-mobile-subgroup-children a,
  .nav-mobile-subgroup-children span {
    display: block;
    padding: var(--iq-space-2) 0 var(--iq-space-2) var(--iq-space-7);
    font-size: var(--iq-body-sm);
    color: var(--iq-text-body);
    text-decoration: none;
    line-height: 1.45;
    border-bottom: var(--iq-border-thin);
    transition: color var(--iq-dur-fast) var(--iq-ease);
  }
  .nav-mobile-subgroup-children a:hover {
    color: var(--iq-accent);
  }
  .nav-mobile-subgroup-children .nav-mobile-view-all {
    color: var(--iq-accent);
    font-weight: 500;
  }
  .nav-mobile-subgroup-children .nav-mobile-forthcoming {
    color: var(--iq-text-tertiary);
    font-style: italic;
    cursor: default;
  }
  .nav-mobile-subgroup-children > *:last-child {
    border-bottom: 0;
  }

  /* CTA at the bottom of the panel */
  .nav-mobile-cta {
    display: block;
    margin-top: var(--iq-space-4);
    padding-top: var(--iq-space-4);
    border-top: var(--iq-border-thin);
    border-bottom: 0 !important;
    color: var(--iq-accent) !important;
    font-weight: 500;
  }
}