/* Shared case-study mini pages */
:root {
  --case-bg: #0b0d12;
  --case-elevated: #12151c;
  --case-text: #e8eaef;
  --case-muted: #9aa3b5;
  --case-accent: #6ee7ff;
  --case-accent-2: #a78bfa;
  --case-border: rgba(255, 255, 255, 0.1);
  --case-font: "DM Sans", system-ui, sans-serif;
  --case-mono: "JetBrains Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--case-font);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--case-text);
  background: var(--case-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 12px;
}

.case-top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  background: rgba(11, 13, 18, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--case-border);
}

.case-top a {
  color: var(--case-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.case-top a:hover {
  color: var(--case-text);
}

.case-wrap {
  width: min(100% - 2rem, 720px);
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.case-kicker {
  margin: 0 0 0.5rem;
  font-family: var(--case-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--case-accent);
}

.case-wrap h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.case-lead {
  margin: 0 0 1.75rem;
  color: var(--case-muted);
  font-size: 1.1rem;
}

.case-section {
  margin-bottom: 1.85rem;
  padding-bottom: 0.25rem;
}

.case-section a {
  color: var(--case-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.case-section a:hover {
  color: var(--case-text);
}

.case-section h2 {
  margin: 0 0 0.55rem;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.case-section p,
.case-section li {
  color: var(--case-muted);
  font-size: 0.98rem;
}

.case-section ul {
  margin: 0.5rem 0 0;
  padding-left: 1.15rem;
}

.case-section li {
  margin-bottom: 0.35rem;
}

.case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.case-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid var(--case-border);
  transition: transform 0.15s ease, background 0.15s ease;
}

.case-btn:hover {
  transform: translateY(-1px);
}

.case-btn-primary {
  background: var(--case-accent);
  color: #0b0d12;
  border-color: var(--case-accent);
}

.case-btn-ghost {
  background: transparent;
  color: var(--case-text);
}

/* Theme: dungeon */
body.theme-dungeon {
  --case-bg: #0a0612;
  --case-elevated: #140a24;
  --case-text: #e8dcc4;
  --case-muted: #c4b49a;
  --case-accent: #d4a84b;
  --case-accent-2: #a78bfa;
  --case-border: rgba(212, 168, 75, 0.35);
  font-family: "IM Fell English", Georgia, serif;
}

body.theme-dungeon .case-kicker,
body.theme-dungeon h1,
body.theme-dungeon h2 {
  font-family: "Cinzel", "Times New Roman", serif;
}

body.theme-dungeon .case-btn-primary {
  background: #d4a84b;
  color: #140a24;
}

/* Theme: finance */
body.theme-finance {
  --case-bg: #0b0d12;
  --case-accent: #6ee7ff;
  --case-accent-2: #34d399;
}

/* Theme: automation */
body.theme-automation {
  --case-bg: #0c0f14;
  --case-accent: #94a3b8;
  --case-accent-2: #38bdf8;
  --case-text: #e2e8f0;
  --case-muted: #94a3b8;
}

body.theme-automation .case-btn-primary {
  background: #e2e8f0;
  color: #0f172a;
}

/* Theme: research agent / bavaria */
body.theme-agent {
  --case-bg: #f4f7fb;
  --case-elevated: #ffffff;
  --case-text: #0f172a;
  --case-muted: #475569;
  --case-accent: #1a5a9c;
  --case-accent-2: #4a7eb5;
  --case-border: rgba(26, 90, 156, 0.2);
}

body.theme-agent .case-top {
  background: rgba(244, 247, 251, 0.92);
}

body.theme-agent .case-btn-primary {
  background: #1a5a9c;
  color: #fff;
  border-color: #0f3d6e;
}

/* Theme: Lumen (light chat UI) */
body.theme-lumen {
  --case-bg: #f7f7f7;
  --case-elevated: #ffffff;
  --case-text: #111111;
  --case-muted: #555555;
  --case-accent: #111111;
  --case-accent-2: #333333;
  --case-border: rgba(0, 0, 0, 0.12);
}

body.theme-lumen .case-top {
  background: rgba(247, 247, 247, 0.94);
}

body.theme-lumen .case-btn-primary {
  background: #000000;
  color: #ffffff;
  border-color: #000000;
}

body.theme-lumen .case-btn-primary:hover {
  background: #222;
  border-color: #222;
}