/* ============================================================
   CT University — design system
   Ivory paper · ink · gold. Cormorant Garamond display, Inter body.
   ============================================================ */

:root {
  --ctu-paper: #FAF6EB;
  --ctu-paper-2: #F3EDDC;
  --ctu-ink: #171208;
  --ctu-ink-soft: #2b2417;
  --ctu-gold: #A67C2E;
  --ctu-gold-deep: #7d5d20;
  --ctu-gold-soft: #EAD9AE;
  --ctu-stone: #6E6455;
  --ctu-line: #e2d7bd;
  --ctu-card: #fffdf7;
  --ctu-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --ctu-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ctu-radius: 14px;
  --ctu-shadow: 0 18px 45px -22px rgba(23, 18, 8, .28);
}

/* ---------- base ---------- */

html { scroll-behavior: smooth; }

body.ctu {
  background: var(--ctu-paper);
  color: var(--ctu-ink);
  font-family: var(--ctu-sans);
  font-size: 1.05rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.ctu::before {
  /* faint paper grain */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(166,124,46,.05) 1px, transparent 1px);
  background-size: 26px 26px;
}

body.ctu h1, body.ctu h2, body.ctu h3, body.ctu h4,
.ctu-serif {
  font-family: var(--ctu-serif);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: .01em;
  color: var(--ctu-ink);
}

body.ctu a { color: var(--ctu-gold-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
body.ctu a:hover { color: var(--ctu-ink); }

.ctu-wrap { max-width: 1120px; margin: 0 auto; padding: 0 clamp(1.1rem, 4vw, 2.5rem); position: relative; z-index: 1; }
.ctu-narrow { max-width: 780px; margin: 0 auto; }

.ctu-kicker {
  font-family: var(--ctu-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--ctu-gold-deep);
  margin: 0 0 1rem;
}

.ctu-greek {
  font-family: var(--ctu-serif);
  letter-spacing: .28em;
  color: var(--ctu-gold-deep);
  font-size: 1rem;
}

.ctu-rule {
  width: 72px; height: 3px; background: linear-gradient(90deg, var(--ctu-gold), var(--ctu-gold-soft));
  border: 0; margin: 1.4rem 0;
}
.ctu-rule.center { margin-left: auto; margin-right: auto; }

/* ---------- buttons ---------- */

.ctu-btn {
  display: inline-block;
  font-family: var(--ctu-sans);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .04em;
  padding: .85rem 1.9rem;
  border-radius: 999px;
  border: 1px solid var(--ctu-ink);
  background: var(--ctu-ink);
  color: var(--ctu-paper) !important;
  text-decoration: none !important;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.ctu-btn:hover { background: var(--ctu-gold-deep); border-color: var(--ctu-gold-deep); transform: translateY(-2px); box-shadow: var(--ctu-shadow); }
.ctu-btn.ghost { background: transparent; color: var(--ctu-ink) !important; }
.ctu-btn.ghost:hover { background: var(--ctu-ink); color: var(--ctu-paper) !important; }
.ctu-btn.gold { background: var(--ctu-gold); border-color: var(--ctu-gold); }
.ctu-btn.gold:hover { background: var(--ctu-gold-deep); border-color: var(--ctu-gold-deep); }
.ctu-btn.small { padding: .55rem 1.2rem; font-size: .85rem; }

/* ---------- header ---------- */

.ctu-topbar {
  border-bottom: 1px solid var(--ctu-line);
  background: rgba(250, 246, 235, .92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.ctu-topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .8rem 0;
}
.ctu-brand { display: flex; align-items: center; gap: .8rem; text-decoration: none !important; }
.ctu-brand-mark {
  width: 44px; height: 44px; border-radius: 50%;
  border: 2px solid var(--ctu-gold);
  display: grid; place-items: center;
  font-family: var(--ctu-serif); font-size: 1.6rem; font-weight: 700;
  color: var(--ctu-gold-deep); background: var(--ctu-card);
}
.ctu-brand-name { font-family: var(--ctu-serif); font-size: 1.35rem; font-weight: 700; color: var(--ctu-ink); line-height: 1; }
.ctu-brand-sub { font-size: .68rem; letter-spacing: .24em; text-transform: uppercase; color: var(--ctu-stone); }

.ctu-nav { display: flex; align-items: center; gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.ctu-nav a {
  text-decoration: none !important;
  font-size: .92rem; font-weight: 500; color: var(--ctu-ink-soft);
  padding: .35rem 0; border-bottom: 2px solid transparent;
}
.ctu-nav a:hover, .ctu-nav .current-menu-item a { color: var(--ctu-ink); border-bottom-color: var(--ctu-gold); }
.ctu-nav-toggle { display: none; background: none; border: 1px solid var(--ctu-line); border-radius: 8px; padding: .4rem .7rem; font-size: 1.1rem; }

/* ---------- hero ---------- */

.ctu-hero {
  position: relative;
  padding: clamp(3.5rem, 9vw, 7.5rem) 0 clamp(3rem, 7vw, 5.5rem);
  text-align: center;
  overflow: hidden;
}
.ctu-hero::before {
  content: "Φ";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--ctu-serif);
  font-size: clamp(22rem, 60vw, 46rem);
  line-height: 1;
  color: var(--ctu-gold);
  opacity: .07;
  pointer-events: none;
  transform: translateY(-6%);
}
.ctu-hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  margin: .6rem 0 1rem;
}
.ctu-hero .lede {
  font-family: var(--ctu-serif);
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  font-style: italic;
  color: var(--ctu-ink-soft);
  max-width: 44rem;
  margin: 0 auto 2.2rem;
}
.ctu-hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.ctu-hero-meta {
  margin-top: 2.6rem;
  display: flex; gap: 2.4rem; justify-content: center; flex-wrap: wrap;
  font-size: .9rem; color: var(--ctu-stone);
}
.ctu-hero-meta strong { display: block; font-family: var(--ctu-serif); font-size: 1.5rem; color: var(--ctu-ink); }

/* ---------- sections ---------- */

.ctu-section { padding: clamp(3rem, 7vw, 5.5rem) 0; position: relative; }
.ctu-section.alt { background: var(--ctu-paper-2); border-top: 1px solid var(--ctu-line); border-bottom: 1px solid var(--ctu-line); }
.ctu-section-head { text-align: center; max-width: 720px; margin: 0 auto 2.8rem; }
.ctu-section-head h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin: 0 0 .8rem; }
.ctu-section-head p { color: var(--ctu-stone); font-size: 1.05rem; }

/* ---------- department cards ---------- */

.ctu-dept-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.6rem; }
.ctu-dept-card {
  background: var(--ctu-card);
  border: 1px solid var(--ctu-line);
  border-radius: var(--ctu-radius);
  padding: 2.4rem 2.2rem;
  box-shadow: var(--ctu-shadow);
  position: relative;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.ctu-dept-card:hover { transform: translateY(-4px); }
.ctu-dept-card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: linear-gradient(90deg, var(--ctu-gold-deep), var(--ctu-gold), var(--ctu-gold-soft));
}
.ctu-dept-card .dept-glyph {
  font-family: var(--ctu-serif); font-size: 2.6rem; color: var(--ctu-gold-deep);
}
.ctu-dept-card h3 { font-size: 1.9rem; margin: .6rem 0 .4rem; }
.ctu-dept-card .dept-latin { font-size: .8rem; letter-spacing: .22em; text-transform: uppercase; color: var(--ctu-stone); margin-bottom: 1rem; }
.ctu-dept-card p { color: var(--ctu-ink-soft); }
.ctu-dept-card .director { margin-top: 1.2rem; font-size: .9rem; color: var(--ctu-stone); border-top: 1px solid var(--ctu-line); padding-top: 1rem; }

/* ---------- course cards / lists ---------- */

.ctu-course-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.3rem; }
.ctu-course-card {
  background: var(--ctu-card); border: 1px solid var(--ctu-line); border-radius: var(--ctu-radius);
  padding: 1.8rem; display: flex; flex-direction: column; gap: .6rem;
  transition: transform .18s ease, border-color .18s ease;
}
.ctu-course-card:hover { transform: translateY(-3px); border-color: var(--ctu-gold); }
.ctu-course-card .course-no {
  font-size: .75rem; font-weight: 700; letter-spacing: .24em; text-transform: uppercase; color: var(--ctu-gold-deep);
}
.ctu-course-card h3, .ctu-course-card h4 { font-size: 1.45rem; margin: 0; }
.ctu-course-card h3 a, .ctu-course-card h4 a { text-decoration: none !important; color: var(--ctu-ink); }
.ctu-course-card p { font-size: .95rem; color: var(--ctu-stone); margin: 0 0 .4rem; flex: 1; }
.ctu-course-card .course-meta { font-size: .82rem; color: var(--ctu-stone); display: flex; gap: 1rem; flex-wrap: wrap; }

/* session outline */
.ctu-sessions { list-style: none; margin: 1.2rem 0 0; padding: 0; counter-reset: sess; }
.ctu-sessions li {
  counter-increment: sess;
  padding: 1rem 0 1rem 3.4rem;
  border-top: 1px solid var(--ctu-line);
  position: relative;
  font-size: .98rem;
}
.ctu-sessions li::before {
  content: counter(sess, decimal-leading-zero);
  position: absolute; left: 0; top: 1rem;
  font-family: var(--ctu-serif); font-size: 1.3rem; font-weight: 700; color: var(--ctu-gold-deep);
}
.ctu-sessions li strong { display: block; font-family: var(--ctu-serif); font-size: 1.15rem; }

/* ---------- fee table ---------- */

.ctu-table-wrap { overflow-x: auto; border: 1px solid var(--ctu-line); border-radius: var(--ctu-radius); background: var(--ctu-card); box-shadow: var(--ctu-shadow); }
table.ctu-table { width: 100%; border-collapse: collapse; font-size: .98rem; }
table.ctu-table th {
  text-align: left; font-family: var(--ctu-serif); font-size: 1.05rem;
  background: var(--ctu-ink); color: var(--ctu-paper); padding: .9rem 1.2rem; font-weight: 600;
}
table.ctu-table td { padding: .9rem 1.2rem; border-top: 1px solid var(--ctu-line); vertical-align: top; }
table.ctu-table tr:nth-child(even) td { background: rgba(166,124,46,.05); }
.ctu-price { font-family: var(--ctu-serif); font-size: 1.4rem; font-weight: 700; color: var(--ctu-gold-deep); white-space: nowrap; }

/* ---------- steps ---------- */

.ctu-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; counter-reset: step; margin: 2rem 0; }
.ctu-step {
  counter-increment: step;
  background: var(--ctu-card); border: 1px solid var(--ctu-line); border-radius: var(--ctu-radius);
  padding: 1.8rem 1.5rem; position: relative;
}
.ctu-step::before {
  content: counter(step);
  font-family: var(--ctu-serif); font-size: 2.2rem; font-weight: 700; color: var(--ctu-gold);
  display: block; margin-bottom: .4rem;
}
.ctu-step h3, .ctu-step h4 { font-size: 1.3rem; margin: 0 0 .5rem; }
.ctu-step p { font-size: .93rem; color: var(--ctu-stone); margin: 0; }

/* ---------- callouts ---------- */

.ctu-callout {
  border: 1px solid var(--ctu-gold); border-left: 6px solid var(--ctu-gold);
  background: linear-gradient(180deg, #fffdf4, var(--ctu-paper));
  border-radius: 10px; padding: 1.4rem 1.6rem; margin: 1.8rem 0;
}
.ctu-callout h3, .ctu-callout h4 { margin-top: 0; font-size: 1.35rem; }
.ctu-callout p:last-child { margin-bottom: 0; }
.ctu-callout.ink { border-color: var(--ctu-ink); border-left-color: var(--ctu-ink); }

/* ---------- faculty ---------- */

.ctu-faculty { display: grid; grid-template-columns: 320px 1fr; gap: 3rem; align-items: start; }
.ctu-photo-frame {
  aspect-ratio: 3/4; border-radius: var(--ctu-radius);
  border: 1px solid var(--ctu-gold);
  background:
    linear-gradient(160deg, var(--ctu-paper-2), #e9dfc4);
  display: grid; place-items: center; text-align: center;
  box-shadow: var(--ctu-shadow); position: relative; overflow: hidden;
}
.ctu-photo-frame .ph-glyph { font-family: var(--ctu-serif); font-size: 6rem; color: var(--ctu-gold); opacity: .55; line-height: 1; }
.ctu-photo-frame .ph-note { font-size: .82rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ctu-stone); margin-top: .8rem; padding: 0 1.5rem; }
.ctu-photo-frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ctu-degrees { list-style: none; margin: 1.2rem 0; padding: 0; }
.ctu-degrees li { padding: .7rem 0; border-top: 1px solid var(--ctu-line); font-size: .98rem; }
.ctu-degrees li strong { font-family: var(--ctu-serif); font-size: 1.15rem; display: block; }

/* ---------- forms ---------- */

.ctu-form { background: var(--ctu-card); border: 1px solid var(--ctu-line); border-radius: var(--ctu-radius); padding: 2.2rem; box-shadow: var(--ctu-shadow); }
.ctu-form .field { margin-bottom: 1.3rem; }
.ctu-form label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: .35rem; }
.ctu-form .hint { font-size: .85rem; color: var(--ctu-stone); margin-top: .3rem; }
.ctu-form input[type=text], .ctu-form input[type=email], .ctu-form input[type=number],
.ctu-form input[type=file], .ctu-form select, .ctu-form textarea {
  width: 100%; padding: .7rem .9rem; border: 1px solid var(--ctu-line); border-radius: 8px;
  font-family: var(--ctu-sans); font-size: .95rem; background: #fff;
}
.ctu-form input:focus, .ctu-form select:focus, .ctu-form textarea:focus {
  outline: 2px solid var(--ctu-gold); outline-offset: 1px; border-color: var(--ctu-gold);
}
.ctu-notice { border-radius: 10px; padding: 1rem 1.3rem; margin: 1.2rem 0; font-size: .95rem; }
.ctu-notice.success { background: #eef5e9; border: 1px solid #9db98a; }
.ctu-notice.error { background: #f9e9e4; border: 1px solid #c98d7a; }
.ctu-notice.info { background: #eef0f7; border: 1px solid #a9b2cc; }

/* ---------- seminar ---------- */

.ctu-jitsi { border: 1px solid var(--ctu-line); border-radius: var(--ctu-radius); overflow: hidden; box-shadow: var(--ctu-shadow); background: #0d0b08; }
.ctu-jitsi iframe { display: block; width: 100%; height: min(72vh, 640px); border: 0; }

/* ---------- footer ---------- */

.ctu-footer { background: var(--ctu-ink); color: #d9d2c2; margin-top: 4rem; }
.ctu-footer a { color: var(--ctu-gold-soft); }
.ctu-footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; padding: 3.5rem 0 2.5rem; }
.ctu-footer h3, .ctu-footer h4 { color: var(--ctu-paper); font-size: 1.3rem; margin: 0 0 1rem; }
.ctu-footer ul { list-style: none; margin: 0; padding: 0; }
.ctu-footer li { margin-bottom: .5rem; font-size: .93rem; }
.ctu-footer .foot-glyph { font-family: var(--ctu-serif); font-size: 2.4rem; color: var(--ctu-gold); }
.ctu-footer-bottom { border-top: 1px solid #3a3226; padding: 1.4rem 0; font-size: .85rem; color: #9a917e; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.ctu-disclaimer { font-size: .82rem; color: #9a917e; max-width: 70ch; }

/* ---------- page hero (interior pages) ---------- */

.ctu-page-hero { padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(1.5rem, 4vw, 2.5rem); text-align: center; }
.ctu-page-hero h1 { font-size: clamp(2.2rem, 5.5vw, 3.6rem); margin: .5rem 0 1rem; }
.ctu-page-hero .lede { font-family: var(--ctu-serif); font-style: italic; font-size: 1.25rem; color: var(--ctu-ink-soft); max-width: 46rem; margin: 0 auto; }

/* ---------- misc ---------- */

.ctu-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.ctu-checklist { list-style: none; margin: 1rem 0; padding: 0; }
.ctu-checklist li { padding: .55rem 0 .55rem 2rem; position: relative; border-bottom: 1px dashed var(--ctu-line); font-size: .97rem; }
.ctu-checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--ctu-gold-deep); font-weight: 700; }
.ctu-stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 2rem 0; }
.ctu-stat { text-align: center; background: var(--ctu-card); border: 1px solid var(--ctu-line); border-radius: 10px; padding: 1.3rem .8rem; }
.ctu-stat strong { display: block; font-family: var(--ctu-serif); font-size: 2rem; color: var(--ctu-gold-deep); }
.ctu-stat span { font-size: .82rem; color: var(--ctu-stone); letter-spacing: .06em; text-transform: uppercase; }

@media (max-width: 900px) {
  .ctu-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--ctu-paper); flex-direction: column; align-items: stretch; padding: 1rem 1.5rem 1.5rem; border-bottom: 1px solid var(--ctu-line); gap: .2rem; }
  .ctu-nav.open { display: flex; }
  .ctu-nav-toggle { display: block; }
  .ctu-topbar-inner { position: relative; }
  .ctu-faculty { grid-template-columns: 1fr; }
  .ctu-photo-frame { max-width: 340px; }
  .ctu-two-col { grid-template-columns: 1fr; }
  .ctu-footer-inner { grid-template-columns: 1fr; }
}

@media print {
  .ctu-topbar, .ctu-footer, .ctu-hero-ctas { display: none; }
}