/* ============================================================
   LIT NETWORK — STYLES.CSS
   Limburg Immersive Technologies Network
   Brand system: UM Navy (#001f3e) + Zuyd Red (#E81A32)
   ============================================================ */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  /* Brand Palette — anchored to UM and Zuyd official colors */
  --c-navy:        #001f3e;  /* UM official dark navy (from logo SVG) */
  --c-navy-mid:    #0a3060;  /* Lighter navy for depth */
  --c-red:         #E81A32;  /* Zuyd official red (from logo SVG) */
  --c-red-dark:    #C4152B;  /* Deeper red for hover states */

  /* Legacy aliases — kept for compatibility, mapped to brand colors */
  --c-zuyd:        #E81A32;  /* = Zuyd red */
  --c-blue:        #001f3e;  /* = UM navy */
  --c-sky:         #5b8fcf;  /* Muted blue for subtle accents */
  --c-orange:      #E81A32;  /* Mapped to Zuyd red */
  --c-orange-lt:   #C4152B;
  --c-purple:      #001f3e;  /* Mapped to navy */
  --c-purple-dk:   #001f3e;

  /* Flat color definitions — no gradients */
  --g-xr:    var(--c-red);
  --g-navy:  var(--c-navy);
  --g-hero:  var(--c-navy);
  --g-warm:  var(--c-red);

  /* Neutrals */
  --c-white:     #FFFFFF;
  --c-surface:   #F7F7F7;
  --c-surface-2: #EEEEEE;
  --c-border:    #D8D8D8;
  --c-text:      #111111;
  --c-text-2:    #444444;
  --c-text-3:    #888888;
  --c-muted:     #666666;

  /* Typography */
  --font-base: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --fw-light:  300;
  --fw-reg:    400;
  --fw-med:    500;
  --fw-semi:   600;
  --fw-bold:   700;
  --fw-black:  900;

  /* Spacing (8px grid) */
  --sp-1: 0.5rem;   /* 8px  */
  --sp-2: 1rem;     /* 16px */
  --sp-3: 1.5rem;   /* 24px */
  --sp-4: 2rem;     /* 32px */
  --sp-5: 3rem;     /* 48px */
  --sp-6: 4rem;     /* 64px */
  --sp-7: 5rem;     /* 80px */
  --sp-8: 6rem;     /* 96px */

  /* Layout */
  --max-w:        1200px;
  --nav-h:        72px;
  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    12px;
  --radius-xl:    16px;
  --radius-pill:  999px;

  /* Shadows — lighter, institutional */
  --shadow-sm:   0 1px 4px rgba(0,0,0,.08);
  --shadow-md:   0 3px 12px rgba(0,0,0,.10);
  --shadow-lg:   0 6px 24px rgba(0,0,0,.12);
  --shadow-xl:   0 12px 40px rgba(0,0,0,.14);

  /* Transitions */
  --t-fast:   150ms ease;
  --t-base:   220ms ease;
  --t-slow:   350ms ease;
  --t-spring: 300ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  font-weight: var(--fw-reg);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-white);
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }
:focus-visible { outline: 2px solid var(--c-blue); outline-offset: 3px; border-radius: 3px; }

/* ── CONTAINER ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}
@media (max-width: 640px) { .container { padding-inline: var(--sp-3); } }

/* ── TYPOGRAPHY ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: var(--fw-bold);
  color: var(--c-navy);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: var(--fw-black); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1rem; }

p { color: var(--c-text-2); }
.lead { font-size: 1.125rem; line-height: 1.7; color: var(--c-text); }

.gradient-text {
  color: var(--c-red);
}

/* ── SECTIONS ────────────────────────────────────────────────── */
.section { padding-block: var(--sp-8); }
@media (max-width: 768px) { .section { padding-block: var(--sp-6); } }

.section-header {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: var(--sp-6);
}
.section-header--light .section-title,
.section-header--light h2 { color: var(--c-white); }

.section-label {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-red);
  background: none;
  padding: 0;
  border-bottom: 2px solid var(--c-red);
  padding-bottom: 0.2em;
  margin-bottom: var(--sp-2);
}
.section-label--light {
  color: rgba(255,255,255,0.7);
  border-bottom-color: rgba(255,255,255,0.4);
}
.section-title { margin-bottom: var(--sp-2); }
.section-title--light { color: var(--c-white); }
.section-desc { font-size: 1.05rem; color: var(--c-text-2); max-width: 640px; margin-inline: auto; }
.section-desc--light { color: rgba(255,255,255,.72); }

/* ── BUTTONS ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.65em 1.5em;
  border-radius: var(--radius-pill);
  font-weight: var(--fw-semi);
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  transition: all var(--t-base);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn--lg  { padding: 0.8em 2em; font-size: 1rem; }
.btn--sm  { padding: 0.45em 1.1em; font-size: 0.82rem; }

.btn--primary {
  background: var(--c-navy);
  color: var(--c-white);
  border-color: var(--c-navy);
}
.btn--primary:hover {
  background: var(--c-navy-mid);
  border-color: var(--c-navy-mid);
}

.btn--accent {
  background: var(--c-red);
  color: var(--c-white);
  border-color: var(--c-red);
}
.btn--accent:hover {
  background: var(--c-red-dark);
  border-color: var(--c-red-dark);
}

.btn--outline-light {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,.55);
}
.btn--outline-light:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--c-white);
}

/* ── BADGES ─────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.25em 0.75em;
  border-radius: var(--radius-pill);
}
.badge--outline-light { border: 1px solid rgba(255,255,255,.4); color: rgba(255,255,255,.85); }
.badge--xr     { background: rgba(0,31,62,.08); color: var(--c-navy); }
.badge--lab    { background: rgba(232,26,50,.08); color: var(--c-red); }
.badge--research { background: rgba(0,31,62,.08); color: var(--c-navy); }
.badge--education { background: rgba(0,31,62,.08); color: var(--c-navy); }
.badge--industry  { background: rgba(232,26,50,.08); color: var(--c-red-dark); }
.badge--event     { background: rgba(0,31,62,.08); color: var(--c-navy); }

/* ── REVEAL ANIMATIONS ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow var(--t-base);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.nav-logo { display: flex; align-items: center; flex-shrink: 0; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.nav-link {
  color: var(--c-text-2);
  font-size: 0.88rem;
  font-weight: var(--fw-med);
  padding: 0.45em 0.85em;
  border-radius: var(--radius-sm);
  transition: color var(--t-fast);
}
.nav-link:hover { color: var(--c-navy); }
.nav-link.active { color: var(--c-navy); font-weight: var(--fw-semi); }
.nav-cta {
  background: var(--c-red) !important;
  color: var(--c-white) !important;
  font-weight: var(--fw-semi);
  padding: 0.5em 1.2em;
  border-radius: var(--radius-sm);
  margin-left: var(--sp-1);
}
.nav-cta:hover { background: var(--c-red-dark) !important; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-navy);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--c-white);
    flex-direction: column;
    align-items: stretch;
    padding: var(--sp-3);
    gap: var(--sp-1);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t-base), opacity var(--t-base);
    border-top: 1px solid var(--c-border);
    box-shadow: var(--shadow-md);
  }
  .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link { padding: 0.75em 1em; border-radius: var(--radius-sm); font-size: 1rem; color: var(--c-text); }
  .nav-cta { text-align: center; margin-left: 0; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: var(--nav-h);
  background: var(--c-navy);
  overflow: hidden;
}

/* Subtle texture: fine dot grid — institutional, not tech-startup */
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* Left accent bar — references Zuyd red */
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 4px;
  background: var(--c-red);
}

/* Remove old orb/grid classes — kept empty for backwards compat */
.hero-grid { display: none; }
.hero-orb  { display: none; }

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-block: var(--sp-6);
}

.hero-badge { margin-bottom: var(--sp-3); }

.hero-heading {
  color: var(--c-white);
  margin-bottom: var(--sp-3);
  text-shadow: 0 2px 20px rgba(1,27,60,.4);
}

.hero-sub {
  color: rgba(255,255,255,.75);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--sp-5);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--sp-2);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-6);
}

.hero-stats {
  display: flex;
  gap: var(--sp-5);
  justify-content: center;
  flex-wrap: wrap;
  padding-top: var(--sp-4);
  border-top: 1px solid rgba(255,255,255,.12);
}
.hero-stat { text-align: center; }
.hero-stat__num {
  display: block;
  font-size: 2.5rem;
  font-weight: var(--fw-black);
  color: var(--c-red);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.hero-stat__label {
  font-size: 0.8rem;
  font-weight: var(--fw-med);
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-scroll {
  position: absolute;
  bottom: var(--sp-4);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.45);
  animation: bounce 2s ease-in-out infinite;
  z-index: 1;
  padding: var(--sp-1);
  border-radius: 50%;
}
.hero-scroll:hover { color: rgba(255,255,255,.8); }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about { background: var(--c-white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-7);
  align-items: start;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: var(--sp-5); }
}

.about-text { display: flex; flex-direction: column; gap: var(--sp-3); }
.about-text p { line-height: 1.75; }
.about-text strong { color: var(--c-navy); }

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-top: var(--sp-2);
}
.pillar {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  background: var(--c-surface);
  border-left: 3px solid var(--c-blue);
  transition: background var(--t-base), border-color var(--t-base);
}
.pillar:hover { background: #EFF6FF; border-color: var(--c-zuyd); }
.pillar-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  color: var(--c-zuyd);
}
.pillar-icon svg { width: 100%; height: 100%; }
.pillar strong { display: block; font-size: 0.95rem; color: var(--c-navy); margin-bottom: 2px; }
.pillar p { font-size: 0.85rem; margin: 0; }

/* About visual / card stack */
.about-visual { position: relative; }
.about-card-stack { position: relative; height: 420px; }

.about-card {
  position: absolute;
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.about-card--back {
  inset: 20px 0 0 20px;
  background: var(--g-navy);
  opacity: 0.5;
  border-radius: var(--radius-xl);
}
.about-card--front {
  inset: 0 20px 20px 0;
  background: var(--c-white);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-4);
}

.about-card-header { display: flex; }
.about-quote {
  flex: 1;
  padding: var(--sp-3);
  background: var(--c-surface);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--c-blue);
}
.about-quote p {
  font-size: 0.95rem;
  font-style: italic;
  color: var(--c-text);
  line-height: 1.65;
  margin: 0;
}
.about-card-logos { display: flex; flex-direction: column; gap: var(--sp-2); }
.inst-badge {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.75rem var(--sp-2);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--c-border);
}
.inst-badge--um { border-color: rgba(1,27,60,.2); }
.inst-badge--zuyd { border-color: rgba(0,87,184,.2); }
.inst-badge__abbr {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 36px;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-black);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.inst-badge--um .inst-badge__abbr { background: #fff; }
.inst-badge--zuyd .inst-badge__abbr { background: var(--c-zuyd); color: var(--c-white); }
.inst-badge--zuyd .inst-badge__abbr--logo { background: #fff; }
.inst-badge__abbr--logo {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 8px;
  padding: 4px;
  width: 48px;
  height: 48px;
}
.inst-badge__abbr--logo img { width: 100%; height: 100%; object-fit: contain; display: block; }
.inst-badge strong { display: block; font-size: 0.82rem; color: var(--c-text); }
.inst-badge span { font-size: 0.73rem; color: var(--c-text-3); }

@media (max-width: 900px) {
  .about-card-stack { height: 360px; }
}

/* ============================================================
   ACTIVITIES & PROJECTS (BUas-style grid)
   ============================================================ */
.activities { background: var(--c-surface); }

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: var(--sp-1);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}
.filter-tab {
  padding: 0.45em 1.2em;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: var(--fw-med);
  color: var(--c-text-2);
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  transition: all var(--t-base);
}
.filter-tab:hover { border-color: var(--c-blue); color: var(--c-blue); }
.filter-tab--active {
  background: var(--c-navy);
  color: var(--c-white);
  border-color: var(--c-navy);
}

/* Activities grid — 3-col desktop, 2-col tablet, 1-col mobile */
.activities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
}
@media (max-width: 1024px) { .activities-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .activities-grid { grid-template-columns: 1fr; } }

/* Activity card */
.activity-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.activity-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.activity-card.hidden { display: none; }

/* Card visual header — flat color, no gradient */
.activity-card__visual {
  position: relative;
  height: 160px;
  background: var(--card-color-a, var(--c-navy));
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.activity-card__icon {
  width: 64px;
  height: 64px;
  position: relative;
  z-index: 1;
  opacity: 0.9;
}
.activity-card__icon svg { width: 100%; height: 100%; }
.activity-card__icon--logo {
  background: rgba(255,255,255,0.97);
  border-radius: 10px;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
}
.activity-card__icon--logo img,
.activity-card__icon--logo svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.activity-card__orb { display: none; }

/* Card body */
.activity-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3);
}
.activity-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-1);
}
.activity-card__inst {
  font-size: 0.72rem;
  font-weight: var(--fw-med);
  color: var(--c-muted);
  letter-spacing: 0.03em;
}
.activity-card__title {
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  color: var(--c-navy);
  line-height: 1.25;
  margin: 0;
}
.activity-card__desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--c-text-2);
  flex: 1;
}
.activity-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.activity-card__tags li {
  font-size: 0.68rem;
  font-weight: var(--fw-semi);
  color: var(--c-muted);
  background: var(--c-surface-2);
  padding: 0.2em 0.65em;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
}
.activity-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  font-size: 0.85rem;
  font-weight: var(--fw-semi);
  color: var(--c-red);
  margin-top: auto;
  transition: gap var(--t-fast), color var(--t-fast);
}
.activity-card__link:hover { color: var(--c-red-dark); gap: 0.6em; }

/* ============================================================
   BENEFITS
   ============================================================ */
.benefits { background: var(--c-white); }

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
}
@media (max-width: 1024px) { .benefits-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .benefits-grid { grid-template-columns: 1fr; } }

.benefit-card {
  position: relative;
  padding: var(--sp-4);
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transition: transform var(--t-base), box-shadow var(--t-base);
  overflow: hidden;
}
.benefit-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--c-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}
.benefit-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.benefit-card:hover::before { transform: scaleX(1); }

.benefit-card__num {
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  font-size: 2.5rem;
  font-weight: var(--fw-black);
  color: var(--c-border);
  line-height: 1;
  user-select: none;
}
.benefit-card__icon {
  width: 40px;
  height: 40px;
  color: var(--c-blue);
  margin-bottom: var(--sp-1);
}
.benefit-card__icon svg { width: 100%; height: 100%; }
.benefit-card h3 { font-size: 1.1rem; color: var(--c-navy); }
.benefit-card > p { font-size: 0.875rem; line-height: 1.65; }

.benefit-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: var(--sp-1);
}
.benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5em;
  font-size: 0.82rem;
  color: var(--c-text-2);
}
.benefit-list li::before {
  content: '→';
  color: var(--c-blue);
  flex-shrink: 0;
  margin-top: 0.05em;
  font-size: 0.8rem;
}

/* ============================================================
   PARTNERS
   ============================================================ */
.partners { background: var(--c-surface); }

.partners-subtitle {
  font-size: 0.8rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: var(--sp-3);
}

.founding-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
@media (max-width: 768px) { .founding-grid { grid-template-columns: 1fr; } }

.founding-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t-base);
}
.founding-card:hover { box-shadow: var(--shadow-md); }
.founding-card__stripe {
  height: 5px;
}
.founding-card--um .founding-card__stripe { background: var(--c-navy); }
.founding-card--zuyd .founding-card__stripe { background: var(--c-red); }
.founding-card__content { padding: var(--sp-4); }

.founding-logo { margin-bottom: var(--sp-3); }
.founding-logo svg { max-width: 200px; height: auto; }
.founding-logo img { max-width: 220px; height: auto; display: block; }

.founding-card__content p {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: var(--sp-3);
}
.founding-card__meta {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.founding-card__meta span {
  font-size: 0.75rem;
  font-weight: var(--fw-med);
  color: var(--c-muted);
  display: flex;
  align-items: center;
  gap: 0.3em;
}
.founding-card__meta span::before {
  content: '·';
  color: var(--c-blue);
  font-size: 1.2em;
}
.founding-card__resource {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-top: var(--sp-3);
  font-size: 0.8rem;
  font-weight: var(--fw-med);
  color: var(--c-blue);
  text-decoration: none;
  transition: opacity 0.2s;
}
.founding-card__resource:hover { opacity: 0.75; }

/* Network partners */
.partners-network p { font-size: 0.95rem; margin-bottom: var(--sp-3); }
.partners-network__desc { color: var(--c-text-2); max-width: 580px; }
.network-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
}
.network-tag {
  font-size: 0.82rem;
  font-weight: var(--fw-med);
  padding: 0.4em 1em;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--c-border);
  color: var(--c-text-2);
  background: var(--c-white);
  transition: all var(--t-fast);
}
.network-tag:hover { border-color: var(--c-navy); color: var(--c-navy); }
.network-tag--cta {
  border-color: var(--c-red);
  color: var(--c-red);
  font-weight: var(--fw-semi);
}
.network-tag--cta:hover {
  background: var(--c-red);
  color: var(--c-white);
}

/* ============================================================
   EVENTS
   ============================================================ */
.events { background: var(--c-white); }

.events-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--sp-4);
  align-items: start;
}
@media (max-width: 900px) { .events-grid { grid-template-columns: 1fr; } }

/* Featured event card — clean institutional navy */
.event-card--featured {
  background: var(--c-navy);
  border-radius: var(--radius-lg);
  border: none;
  border-left: 5px solid var(--c-red);
  overflow: hidden;
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5);
  transition: box-shadow var(--t-base);
  position: relative;
}
.event-card--featured::before { display: none; }
.event-card--featured:hover { box-shadow: var(--shadow-md); }
@media (max-width: 640px) {
  .event-card--featured { flex-direction: column; padding: var(--sp-4); }
}

.event-card__date-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  padding: var(--sp-3);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  color: var(--c-white);
  text-align: center;
  flex-shrink: 0;
  height: fit-content;
  position: relative;
  z-index: 1;
}
.event-card__date-badge .month {
  font-size: 0.65rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.15em;
  opacity: 0.75;
  display: block;
}
.event-card__date-badge .day {
  font-size: 1.8rem;
  font-weight: var(--fw-black);
  line-height: 1.1;
  display: block;
  background: var(--g-xr);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.event-card__date-badge .year {
  font-size: 0.72rem;
  opacity: 0.6;
  display: block;
}

.event-card__content { flex: 1; display: flex; flex-direction: column; gap: var(--sp-2); position: relative; z-index: 1; }
.event-card__content h3 { font-size: 1.3rem; color: #fff; }
.event-card--featured .event-card__content > p { color: rgba(255,255,255,0.8); }
.event-card__theme {
  font-size: 0.92rem;
  font-style: italic;
  color: #6ED2EC;
  padding: var(--sp-2) var(--sp-2);
  background: rgba(255,255,255,0.07);
  border-radius: var(--radius-sm);
  border-left: 3px solid rgba(255,255,255,0.4);
  margin: 0;
}
.event-card__content > p { font-size: 0.875rem; }

.event-highlights {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.event-highlights li {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.85rem;
  color: var(--c-text-2);
}
.event-card--featured .event-highlights li { color: rgba(255,255,255,0.75); }
.event-highlights li::before {
  content: '✓';
  color: var(--c-navy);
  font-size: 0.8em;
  font-weight: var(--fw-bold);
}
.event-card--featured .event-highlights li::before { color: var(--c-red); }

/* Side events */
.events-side {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.event-mini {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  padding: var(--sp-3);
  background: var(--c-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border);
  transition: box-shadow var(--t-base);
}
.event-mini:hover { box-shadow: var(--shadow-sm); }
.event-mini__date {
  font-size: 0.72rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.event-mini h4 { font-size: 0.95rem; color: var(--c-navy); }
.event-mini p  { font-size: 0.82rem; line-height: 1.6; }

.events-newsletter {
  padding: var(--sp-3);
  background: var(--c-surface);
  border-radius: var(--radius-md);
  border: 1px dashed var(--c-border);
}
.events-newsletter p { font-size: 0.88rem; margin-bottom: var(--sp-2); }
.events-newsletter strong { color: var(--c-navy); }
.newsletter-form { display: flex; gap: var(--sp-1); flex-wrap: wrap; }
.newsletter-form input {
  flex: 1;
  min-width: 140px;
  padding: 0.55em 0.9em;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  background: var(--c-white);
  color: var(--c-text);
  transition: border-color var(--t-fast);
}
.newsletter-form input:focus { outline: none; border-color: var(--c-blue); }
.newsletter-form input::placeholder { color: var(--c-text-3); }

/* ============================================================
   CONTACT / JOIN
   ============================================================ */
.contact {
  position: relative;
  background: var(--c-navy);
  overflow: hidden;
}
.contact-bg { display: none; }
.contact-orb { display: none; }
.contact-inner { position: relative; z-index: 1; }

.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--sp-6);
  align-items: start;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* Form */
.contact-form-wrap {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
}
@media (max-width: 640px) { .contact-form-wrap { padding: var(--sp-4); } }

.contact-form { display: flex; flex-direction: column; gap: var(--sp-3); }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.82rem;
  font-weight: var(--fw-med);
  color: rgba(255,255,255,.75);
}
.form-group label span { color: var(--c-red); }

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.65em 0.95em;
  border: 1.5px solid rgba(255,255,255,.15);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.07);
  color: var(--c-white);
  font-size: 0.9rem;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.3); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-red);
  background: rgba(255,255,255,.1);
}
.form-group select option { background: var(--c-navy); color: var(--c-white); }
.form-group textarea { resize: vertical; min-height: 100px; }

/* Contact info */
.contact-info { display: flex; flex-direction: column; gap: var(--sp-4); }
.contact-info h3 { color: var(--c-white); font-size: 1.5rem; }
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  color: rgba(255,255,255,.8);
}
.contact-info-item svg {
  width: 22px;
  height: 22px;
  color: var(--c-red);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-info-item strong { display: block; font-size: 0.95rem; color: var(--c-white); }
.contact-info-item span  { font-size: 0.82rem; color: rgba(255,255,255,.55); }

.contact-partners-mini {
  padding: var(--sp-3);
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,.1);
}
.contact-partners-mini p {
  font-size: 0.75rem;
  font-weight: var(--fw-med);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: var(--sp-2);
}
.cpm-logos { display: flex; flex-direction: column; gap: var(--sp-1); }
.cpm-um, .cpm-zuyd {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,.8);
}
.cpm-abbr {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-black);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.cpm-um .cpm-abbr   { background: rgba(255,255,255,.15); color: var(--c-sky); }
.cpm-zuyd .cpm-abbr { background: var(--c-red); color: var(--c-white); }
.cpm-um .cpm-abbr--img,
.cpm-zuyd .cpm-abbr--img { background: #fff; }
.cpm-abbr--img {
  background: #fff;
  border-radius: 6px;
  padding: 2px;
  width: 40px;
  height: 40px;
}
.cpm-abbr--img img { width: 100%; height: 100%; object-fit: contain; display: block; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-navy);
  border-top: 1px solid rgba(255,255,255,.06);
  color: rgba(255,255,255,.65);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-5);
  padding-block: var(--sp-7);
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-4); padding-block: var(--sp-5); }
}

.footer-brand { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer-logo { margin-bottom: var(--sp-1); }
.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,.5);
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: var(--sp-2);
}
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.07);
  color: rgba(255,255,255,.6);
  transition: all var(--t-fast);
}
.social-link svg { width: 16px; height: 16px; }
.social-link:hover {
  background: var(--c-red);
  color: var(--c-white);
}

.footer-nav-group h4 {
  font-size: 0.72rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: var(--sp-2);
}
.footer-nav-group ul { display: flex; flex-direction: column; gap: 8px; }
.footer-nav-group a {
  font-size: 0.875rem;
  color: rgba(255,255,255,.6);
  transition: color var(--t-fast);
}
.footer-nav-group a:hover { color: var(--c-white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-2);
  padding-block: var(--sp-3);
  border-top: 1px solid rgba(255,255,255,.06);
}
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,.35); }
.footer-legal {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.footer-legal a {
  font-size: 0.78rem;
  color: rgba(255,255,255,.35);
  transition: color var(--t-fast);
}
.footer-legal a:hover { color: rgba(255,255,255,.7); }

/* ============================================================
   NEWS & UPDATES
   ============================================================ */
.news { background: var(--c-surface); }

/* News grid — mirrors activities grid */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
}
@media (max-width: 1024px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .news-grid { grid-template-columns: 1fr; } }

/* News card */
.news-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.news-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.news-card.hidden { display: none; }

/* Card visual — same structure as activity cards, photo-ready */
.news-card__visual {
  position: relative;
  height: 160px;
  overflow: hidden;
}

.news-card__slides {
  position: absolute;
  inset: 0;
}

.news-card__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 900ms ease;
}

.news-card__slide.active {
  opacity: 1;
}

.news-card__slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Card body */
.news-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3);
}
.news-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-1);
}
.news-card__date {
  font-size: 0.72rem;
  font-weight: var(--fw-med);
  color: var(--c-muted);
  letter-spacing: 0.03em;
}
.news-card__title {
  font-size: 1.05rem;
  font-weight: var(--fw-bold);
  color: var(--c-navy);
  line-height: 1.25;
  margin: 0;
}
.news-card__desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--c-text-2);
  flex: 1;
}
.news-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.news-card__tags li {
  font-size: 0.68rem;
  font-weight: var(--fw-semi);
  color: var(--c-muted);
  background: var(--c-surface-2);
  padding: 0.2em 0.65em;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
}

/* Speaker list inside event card */
.event-speakers {
  margin-top: var(--sp-1);
  padding: var(--sp-2) var(--sp-2);
  background: rgba(255,255,255,0.07);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--c-red);
}
.event-speakers__label {
  font-size: 0.7rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--sp-1);
}
.event-speakers__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.event-speakers__list span {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.8);
}

/* ============================================================
   UTILITY
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Stagger delays for reveal animations */
.reveal:nth-child(1) { transition-delay: 0ms; }
.reveal:nth-child(2) { transition-delay: 80ms; }
.reveal:nth-child(3) { transition-delay: 160ms; }
.reveal:nth-child(4) { transition-delay: 240ms; }
.reveal:nth-child(5) { transition-delay: 320ms; }
.reveal:nth-child(6) { transition-delay: 400ms; }

/* Print styles */
@media print {
  .site-header, .hero-scroll, .nav-toggle, .hero-bg,
  .contact-bg, .hero-orb, .contact-orb { display: none; }
  .site-header { position: static; }
  body { color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
}

/* ============================================================
   PROJECTS PAGE (projects.html)
   ============================================================ */

/* ── Page hero (inner pages) ─────────────────────────────────── */
.page-hero {
  background: var(--c-navy);
  color: var(--c-white);
  padding: calc(var(--nav-h) + var(--sp-7)) 0 var(--sp-7);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 25% 70%, rgba(232,26,50,.18) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 30%, rgba(91,143,207,.12) 0%, transparent 55%);
  pointer-events: none;
}
.page-hero .container { position: relative; }
.page-hero__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-bottom: var(--sp-2);
}
.page-hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: var(--fw-black);
  line-height: 1.1;
  color: var(--c-white);
  margin-bottom: var(--sp-3);
}
.page-hero__title span { color: var(--c-red); }
.page-hero__sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,.72);
  max-width: 620px;
  margin-inline: auto;
  line-height: 1.65;
}

/* ── Nav active state for inner pages ────────────────────────── */
.nav-link--page-active {
  color: var(--c-white) !important;
  font-weight: var(--fw-semi);
}

/* ── Projects grid ──────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-5);
}
@media (max-width: 700px) { .projects-grid { grid-template-columns: 1fr; } }

/* ── Project card ────────────────────────────────────────────── */
.project-card {
  background: var(--c-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.project-card__cover {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--cover-bg, var(--c-navy));
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-card__cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.project-card:hover .project-card__cover img { transform: scale(1.05); }

.project-card__cover-icon {
  width: 64px;
  height: 64px;
  opacity: .25;
  color: var(--c-white);
}
.project-card__cover-badge {
  position: absolute;
  top: var(--sp-2);
  left: var(--sp-2);
  z-index: 1;
}

.project-card__body {
  padding: var(--sp-3);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 8px;
}
.project-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-1);
}
.project-card__inst {
  font-size: 0.75rem;
  color: var(--c-text-3);
  font-weight: var(--fw-med);
}
.project-status {
  font-size: 0.68rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25em 0.75em;
  border-radius: var(--radius-pill);
}
.status--active    { background: #dcfce7; color: #15803d; }
.status--completed { background: var(--c-surface-2); color: var(--c-text-2); }
.status--upcoming  { background: #fef9c3; color: #854d0e; }

.project-card__title {
  font-size: 1.05rem;
  font-weight: var(--fw-bold);
  color: var(--c-navy);
  line-height: 1.3;
}
.project-card__desc {
  font-size: 0.88rem;
  color: var(--c-text-2);
  line-height: 1.65;
  flex: 1;
}
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.project-card__tags li {
  font-size: 0.7rem;
  font-weight: var(--fw-semi);
  color: var(--c-navy);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  padding: 0.2em 0.65em;
}
.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.84rem;
  font-weight: var(--fw-semi);
  color: var(--c-navy);
  margin-top: var(--sp-1);
  transition: color var(--t-fast), gap var(--t-fast);
}
.project-card__link:hover { color: var(--c-red); gap: 8px; }

/* ── Projects CTA strip ─────────────────────────────────────── */
.projects-cta {
  background: var(--c-navy);
  color: var(--c-white);
  padding: var(--sp-7) 0;
  text-align: center;
}
.projects-cta h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: var(--fw-bold);
  color: var(--c-white);
  margin-bottom: var(--sp-2);
}
.projects-cta p {
  color: rgba(255,255,255,.7);
  margin-bottom: var(--sp-4);
  max-width: 500px;
  margin-inline: auto;
  margin-bottom: var(--sp-4);
}

/* ── project-card__link as button ───────────────────────────── */
button.project-card__link {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.84rem;
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}
.lightbox.is-open {
  opacity: 1;
  pointer-events: all;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 10, 25, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.lightbox__close {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background var(--t-fast), transform var(--t-fast);
  flex-shrink: 0;
}
.lightbox__close:hover {
  background: rgba(255,255,255,0.28);
  transform: scale(1.1);
}
.lightbox__close svg { width: 20px; height: 20px; }

/* ── Video lightbox ──────────────────────────────────────────── */
.lightbox__video-wrap {
  position: relative;
  z-index: 5;
  width: min(92vw, 1040px);
  transform: translateY(24px);
  transition: transform 0.28s ease;
}
.lightbox.is-open .lightbox__video-wrap { transform: translateY(0); }
.lightbox__video-wrap video {
  width: 100%;
  border-radius: var(--radius-xl);
  display: block;
  outline: none;
  box-shadow: 0 24px 64px rgba(0,0,0,.5);
}

/* ── Detail lightbox ─────────────────────────────────────────── */
.lightbox__detail {
  position: relative;
  z-index: 5;
  width: min(92vw, 780px);
  max-height: 90vh;
  background: var(--c-white);
  border-radius: var(--radius-xl);
  overflow-y: auto;
  overflow-x: hidden;
  transform: translateY(24px);
  transition: transform 0.28s ease;
  box-shadow: 0 24px 64px rgba(0,0,0,.4);
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}
.lightbox.is-open .lightbox__detail { transform: translateY(0); }

.lbx-gallery {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 1.5rem 1.5rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}
.lbx-gallery img {
  height: 190px;
  width: auto;
  min-width: 200px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  cursor: pointer;
  transition: opacity var(--t-fast), transform var(--t-fast);
}
.lbx-gallery img:hover { opacity: .88; transform: scale(1.02); }
.lbx-gallery:empty { display: none; }

.lbx-body { padding: 1.5rem; }

.lbx-header { margin-bottom: 1rem; }
.lbx-title {
  font-size: 1.55rem;
  font-weight: var(--fw-black);
  color: var(--c-navy);
  line-height: 1.2;
  margin-bottom: 0.3rem;
}
.lbx-inst {
  font-size: 0.78rem;
  color: var(--c-text-3);
  font-weight: var(--fw-med);
}

.lbx-content { margin-top: 1rem; }
.lbx-content p {
  font-size: 0.92rem;
  color: var(--c-text-2);
  line-height: 1.75;
  margin-bottom: 0.85rem;
}
.lbx-content h3 {
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  color: var(--c-navy);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 1.4rem 0 0.5rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--c-red);
  display: inline-block;
}
.lbx-content li {
  font-size: 0.88rem;
  color: var(--c-text-2);
  line-height: 1.6;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.4rem;
}
.lbx-content li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--c-red);
  font-weight: var(--fw-bold);
}

.lbx-footer {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-2);
}
.lbx-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.lbx-tags li {
  font-size: 0.7rem;
  font-weight: var(--fw-semi);
  color: var(--c-navy);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  padding: 0.25em 0.75em;
  list-style: none;
}
.lbx-tags li::before { display: none; }
.lbx-ext-link {
  font-size: 0.84rem;
  font-weight: var(--fw-semi);
  color: var(--c-navy);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--t-fast);
  white-space: nowrap;
}
.lbx-ext-link:hover { color: var(--c-red); }

@media (max-width: 600px) {
  .lbx-gallery img { height: 140px; min-width: 140px; }
  .lbx-title { font-size: 1.25rem; }
}