/* =========================================================
   Case Study Page — clean editorial layout
   Reuses ../styles.css but resets/overrides for a fresh feel
   ========================================================= */

:root {
  --bg: #0c0b16;
  --bg-elev: #14132a;
  --surface: #1a1932;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f5f5fa;
  --text-muted: rgba(245, 245, 250, 0.7);
  --text-dim: rgba(245, 245, 250, 0.5);
  --accent: #b388ff;
  --accent-strong: #8a2be2;
  --radius: 14px;
  --radius-lg: 22px;
  --max: 1100px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

html, body.case-page {
  background: var(--bg);
  color: var(--text);
  padding-top: 0;
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  text-align: left;
  letter-spacing: -0.01em;
  line-height: 1.6;
  scroll-behavior: smooth;
}

body.case-page * { box-sizing: border-box; }

/* hide bottom nav on case pages — they have their own back button */
body.case-page .bottom-navbar { display: none !important; }

/* ---------- Top bar ---------- */
.case-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: rgba(12, 11, 22, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.case-back {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color .2s, background .2s, border-color .2s, transform .2s;
}
.case-back:hover { color: var(--text); background: rgba(255,255,255,0.08); border-color: var(--border-strong); transform: translateX(-2px); }

.case-brand { justify-self: center; display: inline-flex; align-items: center; }
.case-brand img { height: 32px; width: auto; }

.case-contact-btn {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(138,43,226,0.95), rgba(75,0,130,0.95));
  border: 1px solid rgba(179,136,255,0.45);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: transform .2s, box-shadow .2s;
}
.case-contact-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(138,43,226,.35); }

@media (max-width: 600px) {
  .case-topbar { padding: 10px 14px; }
  .case-brand { display: none; }
  .case-topbar { grid-template-columns: 1fr auto; }
}

/* ---------- Hero ---------- */
.case-hero {
  position: relative;
  padding: 72px 24px 56px;
  max-width: var(--max);
  margin: 0 auto;
}
.case-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(179,136,255,0.10);
  border: 1px solid rgba(179,136,255,0.25);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d4baff;
  margin-bottom: 22px;
}
.case-hero__title {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  color: var(--text);
}
.case-hero__lead {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 0 32px;
}
.case-hero__tags {
  display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 36px; padding: 0; list-style: none;
}
.case-hero__tags li {
  font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.case-hero__cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.case-hero__cover img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}

/* ---------- Meta strip ---------- */
.case-meta {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 48px;
}
.case-meta__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.case-meta__cell {
  background: var(--bg-elev);
  padding: 20px;
}
.case-meta__cell dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 6px;
}
.case-meta__cell dd {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}
.case-meta__cell dd a { color: var(--accent); text-decoration: none; }
.case-meta__cell dd a:hover { text-decoration: underline; }

@media (max-width: 760px) {
  .case-meta__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Body container ---------- */
.case-body {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 96px;
}

/* Restyle the legacy popup-section blocks for an editorial layout */
.case-body .popup-section { margin: 0 0 40px; padding: 0; background: transparent; border: 0; }
.case-body .popup-section.column { text-align: left; }
.case-body .popup-section.column-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 36px 40px;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04), 0 6px 22px rgba(0,0,0,0.18);
}
.case-body .popup-section.column-card > h1,
.case-body .popup-section.column-card > h2,
.case-body .popup-section.column-card > h3 {
  text-align: center;
}
/* When a column-card already wraps inner abstract-item cards, drop the outer frame
   so we don't get a card-in-card look. */
.case-body .popup-section.column-card:has(> .abstract-item) {
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
}
.case-body .popup-section.column-card:has(> .abstract-item) > .abstract-item {
  margin: 18px 0;
}
/* Centered section heading with horizontal rules on each side (atmosfaren.eu reference) */
.case-body .popup-section.popup-profile {
  text-align: center;
}
.case-body .popup-section.popup-profile h2,
.case-body .popup-section.popup-profile h1 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 64px auto 24px;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  width: 100%;
  max-width: 520px;
}
.case-body .popup-section.popup-profile h2::before,
.case-body .popup-section.popup-profile h1::before,
.case-body .popup-section.popup-profile h2::after,
.case-body .popup-section.popup-profile h1::after {
  content: "";
  flex: 0 0 60px;
  height: 1px;
  background: rgba(255,255,255,0.32);
}

/* Framed call-out card (used for column-card sections) */
.case-body .popup-section.column-card {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.case-body h1, .case-body h2, .case-body h3, .case-body h4 {
  color: var(--text);
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  letter-spacing: -0.01em;
  font-weight: 400;
}
.case-body h3 { font-size: 1.15rem; font-weight: 500; margin: 22px 0 10px; }
.case-body h4 { font-size: 1rem; font-weight: 500; margin: 18px 0 8px; }

.case-body p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 14px;
}
.case-body p strong { color: var(--text); font-weight: 600; }

.case-body ul, .case-body ol { color: var(--text-muted); padding-left: 22px; margin: 0 0 18px; }
.case-body li { margin: 6px 0; line-height: 1.7; }

.case-body blockquote {
  margin: 16px 0;
  padding: 16px 22px;
  border-left: 3px solid var(--accent);
  background: rgba(179,136,255,0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text);
  font-style: italic;
  font-size: 15.5px;
}

.case-body a { color: var(--accent); }

/* Two-column legacy layout */
.case-body .popup-section.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 760px) {
  .case-body .popup-section.two-columns { grid-template-columns: 1fr; gap: 20px; }
}

/* Images inside body */
.case-body .popup-image,
.case-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
  margin: 12px 0;
  background: var(--surface);
}

/* Inline icon images in legacy markup come with inline max-width:30px — leave them */
.case-body .popup-section img[style*="max-width: 30px"],
.case-body img[style*="max-width:30px"] {
  margin: 0 auto 8px !important;
  border-radius: 0;
  background: transparent;
}

.case-body .image-caption {
  font-size: 13px;
  color: var(--text-dim);
  text-align: center;
  margin: 6px 0 14px;
}

/* Abstract item cards — soft glass framed cards (atmosfaren.eu reference) */
.case-body .abstract-item {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 18px;
  padding: 28px 30px;
  margin: 18px 0;
  text-align: center !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.case-body .abstract-item h3 {
  margin-top: 0;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.005em;
}
.case-body .abstract-item p { margin-left: auto; margin-right: auto; max-width: 60ch; }
.case-body .abstract-item img[style] { display: block; margin: 0 auto 12px !important; }

.case-body .abstract-summary {
  text-align: center !important;
  margin-top: 18px;
}

/* Hide leftover internal CTAs in body that duplicate page footer */
.case-body .cta { margin-top: 18px; }
.case-body .cta-btn {
  display: inline-flex; align-items: center; padding: 10px 18px;
  background: linear-gradient(135deg, rgba(138,43,226,0.95), rgba(75,0,130,0.95));
  color: #fff; text-decoration: none; border-radius: 10px; border: 1px solid rgba(179,136,255,0.45);
  font-weight: 600; font-size: 14.5px;
  transition: transform .2s, box-shadow .2s;
}
.case-body .cta-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(138,43,226,.35); }

/* The legacy first "Case Study / subtitle" card (matches old popup framed block) */
.case-body > div.popup-section.column-card:first-of-type {
  margin-bottom: 56px;
}
.case-body > div.popup-section.column-card:first-of-type h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400;
  margin: 0 0 10px;
}
.case-body > div.popup-section.column-card:first-of-type h3 {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--text-muted);
  margin: 0;
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}

/* ---------- Skeleton loader ---------- */
.case-skeleton { max-width: var(--max); margin: 60px auto; padding: 0 24px; }
.sk { background: linear-gradient(90deg, var(--bg-elev) 0%, var(--surface) 50%, var(--bg-elev) 100%);
      background-size: 200% 100%; animation: skshine 1.4s linear infinite; border-radius: var(--radius); }
.sk-hero { aspect-ratio: 16/9; margin-bottom: 24px; }
.sk-line { height: 18px; margin: 12px 0; }
.sk-line.w-60 { width: 60%; }
.sk-line.w-40 { width: 40%; }
.sk-block { height: 240px; margin-top: 20px; }
@keyframes skshine { 0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- Footer ---------- */
.case-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 64px 24px 48px;
  margin-top: 40px;
}
.case-footer-inner { max-width: var(--max); margin: 0 auto; }
.case-footer-eyebrow {
  font-size: 12px; font-weight: 600; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--text-dim); margin: 0 0 12px;
}
.case-next-link {
  display: inline-flex; align-items: center; gap: 18px;
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  transition: gap .25s, color .25s;
}
.case-next-link:hover { color: var(--accent); gap: 26px; }
.case-footer-bottom {
  display: flex; flex-wrap: wrap; gap: 24px;
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
}
.case-footer-link { color: var(--text-dim); text-decoration: none; }
.case-footer-link:hover { color: var(--text); }

/* ---------- Image gallery enhancements (reused groups of imgs) ---------- */
.case-body .gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 18px 0;
}
.case-body .gallery-grid img {
  width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; margin: 0;
  border-radius: var(--radius); border: 1px solid var(--border);
  transition: transform .35s ease, box-shadow .35s ease;
}
.case-body .gallery-grid img:hover { transform: scale(1.02); box-shadow: var(--shadow); }

/* ---------- Two-column layout w/ sticky sidenav ---------- */
.case-layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 96px;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}
.case-sidenav {
  position: sticky;
  top: 90px;
  align-self: start;
}
.case-sidenav nav { display: flex; flex-direction: column; gap: 4px; border-left: 1px solid var(--border); padding-left: 14px; }
.case-sidenav nav a {
  display: block; padding: 6px 8px;
  font-size: 13px; color: var(--text-dim);
  text-decoration: none; border-radius: 6px;
  transition: color .2s, background .2s, transform .2s;
}
.case-sidenav nav a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.case-sidenav nav a.is-active { color: var(--accent); background: rgba(179,136,255,0.08); transform: translateX(2px); }
.case-layout .case-body { padding: 0; max-width: none; }
@media (max-width: 960px) { .case-layout { grid-template-columns: 1fr; gap: 24px; } .case-sidenav { display: none; } }

/* Stronger section spacing & alternating image emphasis */
.case-body .popup-section { margin: 0 0 48px; }
.case-body .popup-section.two-columns { gap: 40px; }
.case-body .popup-section.two-columns .column img { border-radius: 12px; }
.case-body .popup-section.popup-profile h2 { margin-top: 64px; }

/* Two-column image polish */
.case-body .popup-section.two-columns .column { min-width: 0; }
.case-body .popup-section.two-columns .column img {
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 12px 28px rgba(0,0,0,0.28);
}
.case-body .popup-section.two-columns .column img[style*="max-width: 30px"],
.case-body .popup-section.two-columns .column img[style*="max-width:30px"] {
  border: 0;
  box-shadow: none;
}

/* === About page integration (popup-profile inside case-body) === */
#about-body .popup-profile {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 28px;
  margin: 0 0 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: left;
}
#about-body .popup-profile-image {
  width: 96px !important;
  height: 96px !important;
  margin: 0 !important;
  border-radius: 999px !important;
  flex: 0 0 auto;
}
#about-body .popup-profile-subtitle {
  margin: 0 !important;
  text-align: left !important;
  font-size: 18px !important;
  color: var(--text) !important;
  font-weight: 500;
}
#about-body .popup-section {
  margin: 32px 0;
  padding: 0;
  background: transparent;
  border: none;
}
#about-body .popup-section h2 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 18px;
}
#about-body .popup-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 18px 0 8px;
}
#about-body .pdf-link {
  display: inline-block;
  margin: 4px 8px 4px 0;
  padding: 8px 14px;
  background: rgba(179,136,255,0.10);
  border: 1px solid rgba(179,136,255,0.25);
  border-radius: 999px;
  color: #d4baff;
  text-decoration: none;
  font-size: 13px;
  transition: background .2s, transform .2s;
}
#about-body .pdf-link:hover { background: rgba(179,136,255,0.22); transform: translateY(-1px); }

#about-body .internship-status { margin: 0 0 28px; }
#about-body .internship-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-radius: 999px;
  background: rgba(46, 213, 115, 0.12);
  border: 1px solid rgba(46, 213, 115, 0.35);
  color: #b9f6ca; font-weight: 500;
}
#about-body .availability-icon { width: 10px; height: 10px; }

#about-body .selling-points { display: grid; gap: 14px; margin: 0 0 32px; }
#about-body .selling-points p {
  margin: 0; padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text-muted);
  line-height: 1.55;
}
#about-body .selling-points p strong { color: var(--text); }

#about-body .image-caption {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin: 8px 0 24px;
  font-style: italic;
}

@media (max-width: 640px) {
  #about-body .popup-profile { flex-direction: column; text-align: center; }
  #about-body .popup-profile-subtitle { text-align: center !important; }
}

/* === About page: contact footer block === */
#about-body .popup-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  padding: 32px;
  margin: 40px 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: left;
}
#about-body .popup-footer h3 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 16px;
  color: var(--text);
  letter-spacing: -0.01em;
}
#about-body .footer-section p {
  margin: 0 0 8px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.55;
}
#about-body .email-container {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
#about-body .email-container img,
#about-body .email-container .icon {
  width: 18px !important;
  height: 18px !important;
  max-width: 18px !important;
  max-height: 18px !important;
  cursor: pointer;
  filter: invert(70%) sepia(40%) saturate(800%) hue-rotate(230deg);
  transition: transform .2s, filter .2s;
}
#about-body .email-container img:hover {
  filter: invert(60%) sepia(80%) saturate(1500%) hue-rotate(240deg);
  transform: translateY(-1px);
}

#about-body .footer-social ul.social-media-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  list-style: none;
  padding: 0;
  margin: 0;
}
#about-body .footer-social ul.social-media-icons li { margin: 0; }
#about-body .footer-social ul.social-media-icons img {
  width: 36px !important;
  height: 36px !important;
  max-width: 36px !important;
  max-height: 36px !important;
  border-radius: 10px;
  padding: 6px;
  background: rgba(179,136,255,0.10);
  border: 1px solid rgba(179,136,255,0.20);
  transition: transform .2s, background .2s, border-color .2s;
}
#about-body .footer-social ul.social-media-icons a:hover img {
  transform: translateY(-2px);
  background: rgba(179,136,255,0.22);
  border-color: rgba(179,136,255,0.45);
}
#about-body .footer-social br { display: none; }

@media (max-width: 640px) {
  #about-body .popup-footer { grid-template-columns: 1fr; padding: 24px; }
}

/* === About page: CTA & gallery & misc icons === */
#about-body .cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px;
  background: linear-gradient(135deg, #8a2be2, #4b0082);
  color: #fff;
  border-radius: 12px;
  border: 1px solid rgba(179,136,255,0.45);
  font-weight: 600;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
}
#about-body .cta-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(138,43,226,.45); }

#about-body .column-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}
#about-body .column-card img[style*="max-width"] {
  width: 50px !important;
  height: auto !important;
  margin: 0 auto 16px;
}

/* Trivia gallery */
#about-body .gallery-container { margin: 16px 0 32px; }
#about-body .image-gallery.scroll-container {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 16px;
  padding: 4px 4px 16px;
  scrollbar-width: thin;
}
#about-body .image-gallery .scroll-content {
  display: flex;
  gap: 16px;
}
#about-body .image-item {
  flex: 0 0 240px;
  scroll-snap-align: start;
}
#about-body .image-item img {
  width: 100% !important;
  height: 240px !important;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--border);
  cursor: zoom-in;
}
#about-body .image-item .image-caption {
  margin: 8px 0 0 !important;
  font-size: 12px;
  text-align: center !important;
  color: var(--text-muted);
}

/* Two-column section images */
#about-body .two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
  margin: 0 0 32px;
}
#about-body .two-columns .popup-image {
  width: 100% !important;
  max-width: 100% !important;
  border-radius: 14px;
  border: 1px solid var(--border);
}
@media (max-width: 640px) {
  #about-body .two-columns { grid-template-columns: 1fr; }
}

/* Country/emoji small icons in companies/role */
#about-body .country-icon { width: 22px !important; height: auto !important; display: inline-block; }