/* ============================================================
   bbw Hochschule – Studiengang-Overlay (Styles)
   ------------------------------------------------------------
   Nutzt die vorhandenen CD-CSS-Variablen aus main.css.
   Über var(--x, fallback) funktioniert das Overlay auch
   eigenständig, falls eine Variable einmal fehlt.

   CD-Palette: #1A5F2E (Dunkelgrün) · #3A8893 (Petrol) ·
               #1B484E (Dunkelpetrol) · #8BB63A (Hellgrün)
   ============================================================ */

/* Scroll-Sperre des Hintergrunds bei offenem Overlay */
html.sg-no-scroll { overflow: hidden; }

/* ---- Wrapper / Backdrop ------------------------------------ */
.sg-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(16px, 5vh, 64px) 16px;
  opacity: 0;
  transition: opacity .28s ease;
}
.sg-overlay.is-open { opacity: 1; }
.sg-overlay[hidden] { display: none; }

.sg-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(27, 72, 78, .55);          /* Dunkelpetrol, transparent */
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

/* ---- Dialog ------------------------------------------------- */
.sg-overlay__dialog {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-white, #ffffff);
  border-radius: var(--radius-md, 14px);
  box-shadow: 0 24px 60px rgba(27, 72, 78, .28);
  padding: clamp(28px, 4vw, 48px);
  /* Akzentkante in CD-Hellgrün als oberer Abschluss */
  border-top: 5px solid var(--color-hellgruen, #8BB63A);
  transform: translateY(16px) scale(.985);
  transition: transform .28s cubic-bezier(.16, 1, .3, 1);
  outline: none;
}
.sg-overlay.is-open .sg-overlay__dialog {
  transform: translateY(0) scale(1);
}

/* ---- Schließen-Button -------------------------------------- */
.sg-overlay__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--color-tint-petrol, #eef4f5);
  color: var(--color-secondary-dark, #1B484E);
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.sg-overlay__close:hover {
  background: var(--color-hochschule-petrol, #3A8893);
  color: #fff;
  transform: rotate(90deg);
}
.sg-overlay__close svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
}

/* ---- Inhalt ------------------------------------------------- */
.sg-overlay__degree {
  display: inline-block;
  margin-bottom: 10px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--color-tint-petrol, #eef4f5);
  color: var(--color-secondary-dark, #1B484E);
  font-family: var(--font-display, "Open Sans", Arial, sans-serif);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.sg-overlay__title {
  margin: 0 0 18px;
  padding-right: 36px;                         /* Platz für X-Button */
  font-family: var(--font-display, "Open Sans", Arial, sans-serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-primary, #1A5F2E);        /* CD-Dunkelgrün */
}

.sg-overlay__body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--color-gray-700, #444b4d);
  font-size: .98rem;
  line-height: 1.7;
}
.sg-overlay__body p { margin: 0 0 14px; }
.sg-overlay__body p:last-child { margin-bottom: 0; }

/* ---- Call to Action ---------------------------------------- */
.sg-overlay__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-100, #e6e9ea);
}
.sg-overlay__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 240px;
  padding: 14px 20px;
  border-radius: var(--radius-sm, 8px);
  font-family: var(--font-display, "Open Sans", Arial, sans-serif);
  font-size: .9rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .12s ease;
}
.sg-overlay__btn:active { transform: translateY(1px); }

.sg-overlay__btn--primary {
  background: var(--color-hochschule-petrol, #3A8893);
  color: #fff;
}
.sg-overlay__btn--primary:hover {
  background: var(--color-primary, #1A5F2E);
}
.sg-overlay__btn--ghost {
  background: transparent;
  color: var(--color-secondary-dark, #1B484E);
  border: 2px solid var(--color-hochschule-petrol, #3A8893);
}
.sg-overlay__btn--ghost:hover {
  background: var(--color-tint-petrol, #eef4f5);
  border-color: var(--color-primary, #1A5F2E);
  color: var(--color-primary, #1A5F2E);
}

/* ---- Mobile ------------------------------------------------- */
@media (max-width: 560px) {
  .sg-overlay { padding: 0; align-items: stretch; }
  .sg-overlay__dialog {
    max-width: none;
    max-height: 100vh;
    min-height: 100vh;
    border-radius: 0;
    border-top: none;
  }
  .sg-overlay__btn { flex: 1 1 100%; }
}

/* ---- Reduzierte Bewegung ----------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .sg-overlay,
  .sg-overlay__dialog,
  .sg-overlay__close { transition: none; }
}

/* ---- Schnellfakten (Quelle: offizielle bbw-Studiengangseiten) ---- */
.sg-overlay__facts {
  margin: 0 0 22px;
  padding: 16px 18px;
  background: var(--color-tint-petrol, #eef4f5);
  border-radius: var(--radius-sm, 8px);
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 9px 18px;
}
.sg-overlay__facts dt {
  font-family: var(--font-display, "Open Sans", Arial, sans-serif);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--color-secondary-dark, #1B484E);
  align-self: start;
  white-space: nowrap;
}
.sg-overlay__facts dd {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .92rem;
  font-weight: 600;
  color: var(--color-gray-900, #1f2425);
}

/* ---- Link zur offiziellen Detailseite ---- */
.sg-overlay__detail-line { margin: 16px 0 0; }
.sg-overlay__detail-link {
  font-family: var(--font-display, "Open Sans", Arial, sans-serif);
  font-size: .88rem;
  font-weight: 700;
  color: var(--color-hochschule-petrol, #3A8893);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  transition: color .2s ease;
}
.sg-overlay__detail-link:hover { color: var(--color-primary, #1A5F2E); }

@media (max-width: 480px) {
  .sg-overlay__facts { grid-template-columns: 1fr; gap: 2px 0; }
  .sg-overlay__facts dt { margin-top: 6px; }
  .sg-overlay__facts dd { margin-bottom: 4px; }
}