/* ==========================================================================
   Shared content-page theme (case studies, contact, legal)
   Matches the main portfolio's dark tech / AI-robotics aesthetic.
   Base (no class) = light theme. The shared inline toggle script adds
   body.dark-mode on load by default, so visitors see the dark theme first;
   clicking the toggle removes the class to reveal the light theme.
   ========================================================================== */

:root {
  --cyan: #00E5FF;
  --violet: #7C5CFF;
  --gradient: linear-gradient(135deg, var(--cyan), var(--violet));
  --live: #2DD4BF;
  --accent-3: #f4a261;

  /* light (base / default DOM state before JS runs) */
  --bg: #F5F7FA;
  --bg-raised: #ffffff;
  --bg-panel: rgba(10, 20, 35, 0.035);
  --border-glass: rgba(10, 20, 35, 0.09);
  --border-glass-hover: rgba(0, 172, 193, 0.55);
  --ink: #171b21;
  --ink-soft: #4a5568;
  --ink-dim: #7c8695;
  --accent: #0aa7c9;
  --accent-2: #6c46e0;
}

/* .dark-mode is added by the shared toggle script; dark is the site's
   default state — the toggle script applies it immediately on load. */
body.dark-mode {
  --bg: #0D1117;
  --bg-raised: #11161d;
  --bg-panel: rgba(255, 255, 255, 0.035);
  --border-glass: rgba(255, 255, 255, 0.09);
  --border-glass-hover: rgba(0, 229, 255, 0.5);
  --ink: #E6EDF3;
  --ink-soft: #A0AEC0;
  --ink-dim: #6b7684;
  --accent: var(--cyan);
  --accent-2: var(--violet);
}

* { box-sizing: border-box; }

body.content-page {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: var(--bg);
  color: var(--ink);
  transition: background 0.3s, color 0.3s;
}
body.content-page {
  background-image:
    linear-gradient(rgba(10, 20, 35, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 20, 35, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
}
body.content-page.dark-mode {
  background-image:
    linear-gradient(rgba(124, 92, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 92, 255, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
}

a { color: var(--accent-2); }

/* ---------- top bar (shared with /projects) ---------- */
.content-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 6%;
  border-bottom: 1px solid var(--border-glass);
  position: sticky;
  top: 0;
  background: rgba(245, 247, 250, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 20;
}
body.dark-mode .content-topbar {
  background: rgba(13, 17, 23, 0.82);
}
.content-brand {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 8px;
}
.content-brand i {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.content-topbar-actions { display: flex; align-items: center; gap: 14px; }
.content-back {
  text-decoration: none;
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
  color: var(--ink-soft);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.content-back:hover { border-color: var(--border-glass-hover); color: var(--ink); background: rgba(0, 229, 255, 0.08); }
.content-theme-toggle {
  background: var(--bg-panel);
  border: 1px solid var(--border-glass);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, transform 0.3s;
}
.content-theme-toggle:hover { border-color: var(--border-glass-hover); transform: rotate(15deg); }

/* ---------- article shell ---------- */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 6% 90px;
}
.article-eyebrow {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}
.article h1 {
  font-size: 2.2rem;
  line-height: 1.25;
  margin: 0 0 14px;
  font-weight: 700;
}
.article-dek {
  font-size: 1.08rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: 8px;
}
.article-meta {
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin-bottom: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}
.article-meta span::before { content: "•"; margin-right: 14px; color: var(--ink-dim); opacity: 0.5; }
.article-meta span:first-child::before { content: ""; margin-right: 0; }

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.tag {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  color: var(--accent);
  font-weight: 600;
}

/* ---------- hero / figure images ---------- */
.article-hero-img {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 34px;
  border: 1px solid var(--border-glass);
  background: #060a0f;
}
.article-hero-img img { width: 100%; height: auto; display: block; }

figure.article-figure {
  margin: 0 0 26px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: #060a0f;
}
figure.article-figure img, figure.article-figure video { width: 100%; height: auto; display: block; }
figure.article-figure figcaption {
  padding: 10px 16px;
  font-size: 0.8rem;
  color: var(--ink-dim);
  background: var(--bg-panel);
  border-top: 1px solid var(--border-glass);
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}
.figure-grid figure.article-figure { margin-bottom: 0; }

.article section { margin-bottom: 38px; }
.article h2 {
  font-size: 1.4rem;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid transparent;
  border-image: var(--gradient) 1;
  display: inline-block;
  font-weight: 700;
}
.article h3 {
  font-size: 1.1rem;
  margin: 22px 0 10px;
  color: var(--ink);
  font-weight: 700;
}
.article p {
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 16px;
  color: var(--ink-soft);
}
.article ul, .article ol {
  line-height: 1.8;
  margin: 0 0 16px;
  padding-left: 22px;
  color: var(--ink-soft);
}
.article li { margin-bottom: 6px; }
.article li strong, .article p strong { color: var(--ink); }

.article pre {
  background: #060a0f;
  color: #dfe6ee;
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 0 0 18px;
  border: 1px solid var(--border-glass);
}
.article code {
  font-family: 'SFMono-Regular', Consolas, Menlo, monospace;
  background: rgba(0, 229, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
  color: var(--accent);
}
.article pre code { background: none; padding: 0; color: inherit; }

.callout {
  border-left: 3px solid var(--accent-3);
  background: rgba(244, 162, 97, 0.08);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 0 0 18px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin: 0 0 24px;
}
.stat-box {
  background: var(--bg-panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color 0.2s;
}
.stat-box:hover { border-color: var(--border-glass-hover); }
.stat-box .num {
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}
.stat-box .label { font-size: 0.78rem; color: var(--ink-dim); }

.article-nav {
  margin-top: 50px;
  padding-top: 22px;
  border-top: 1px solid var(--border-glass);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.article-nav a {
  font-weight: 600;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color 0.2s;
}
.article-nav a:hover { color: var(--accent); }

.ad-slot {
  margin: 40px 0;
  padding: 10px;
  border: 1px dashed var(--border-glass);
  border-radius: 8px;
  text-align: center;
  font-size: 0.7rem;
  color: var(--ink-dim);
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- case studies listing ---------- */
.cs-hero { max-width: 800px; margin: 0 auto; padding: 48px 6% 10px; }
.cs-hero h1 {
  font-size: 2.1rem;
  margin-bottom: 10px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cs-hero p { color: var(--ink-soft); line-height: 1.7; }

.cs-list {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 6% 90px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.cs-card {
  display: flex;
  gap: 20px;
  text-decoration: none;
  color: inherit;
  padding: 20px;
  border-radius: 14px;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.cs-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glass-hover);
  box-shadow: 0 16px 36px rgba(0, 229, 255, 0.14);
}
.cs-card .cs-num {
  font-size: 1.7rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  flex-shrink: 0;
  width: 44px;
}
.cs-card h2 { margin: 0 0 8px; font-size: 1.15rem; border: none; padding: 0; display: block; color: var(--ink); }
.cs-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.6; }

/* ---------- legal pages ---------- */
.legal .article h2 { display: block; }
.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 0.9rem;
}
.legal th, .legal td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-glass);
  color: var(--ink-soft);
}
.legal th { color: var(--ink-dim); font-weight: 600; font-size: 0.82rem; }

/* ---------- contact page ---------- */
.contact-page-grid {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 6% 90px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
@media (max-width: 760px) {
  .contact-page-grid { grid-template-columns: 1fr; gap: 30px; }
}
.contact-copy h1 {
  font-size: 2rem;
  margin-bottom: 14px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.contact-copy p { line-height: 1.75; color: var(--ink-soft); margin-bottom: 16px; }
.contact-channel {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}
.contact-channel i { color: var(--accent); margin-top: 3px; }
.contact-channel .label { font-size: 0.78rem; color: var(--ink-dim); margin-bottom: 2px; }
.contact-channel a, .contact-channel span.value { font-weight: 600; color: var(--ink); }

.contact-form-box {
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 14px;
  padding: 26px;
  transition: border-color 0.3s;
}
.contact-form-box:focus-within { border-color: var(--border-glass-hover); }
.contact-form-box .form-group { margin-bottom: 16px; }
.contact-form-box label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}
.contact-form-box input, .contact-form-box textarea, .contact-form-box select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
  font-family: inherit;
  font-size: 0.92rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--ink);
}
body.dark-mode .contact-form-box input,
body.dark-mode .contact-form-box textarea,
body.dark-mode .contact-form-box select {
  background: rgba(255, 255, 255, 0.03);
}
.contact-form-box input:focus, .contact-form-box textarea:focus, .contact-form-box select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
}
.contact-form-box textarea { resize: vertical; min-height: 110px; }
.contact-submit-btn {
  padding: 11px 22px;
  border-radius: 8px;
  border: none;
  background: var(--gradient);
  color: #05070a;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
}
.contact-submit-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(124, 92, 255, 0.35); }
.contact-note { font-size: 0.78rem; color: var(--ink-dim); margin-top: 12px; }