/* ============================================
   ENGINE.CSS — Slide-layout, transitions, nav-UI, progress
   Bygd på fagvalg-engine, generalisert.
   ============================================ */

/* ============================================
   FONT-IMPORT — Inter for alt
   Inter er referansen for skjerm-tekst: super lesbart, klare
   lining-numerals (perfekt for tall-stats), nøytralt og
   profesjonelt. Variabel font fra 300-700 dekker hele behovet.
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300..800&display=swap');

/* ============================================
   KONTRAST-AWARE TOKENS + FONT-OVERRIDES
   Legges på :root så de er tilgjengelige overalt
   uavhengig av hvilket org-tema som lastes.
   ============================================ */

:root {
  color-scheme: light dark;
  /* Auto-darkened primary, ≥7:1 mot hvit på alle tema */
  --metis-primary-deep: color-mix(in oklch, var(--metis-primary), black 25%);
  --metis-on-primary: var(--metis-text-inverse);
  /* Sekundær: hvit hvis sec er mørk, mørk hvis sec er lys */
  --metis-on-secondary: light-dark(
    color-mix(in srgb, var(--metis-text-primary) 92%, var(--metis-primary)),
    var(--metis-text-inverse)
  );

  /* Font-overrides — Inter for alt (overstyrer jubilat + Raleway).
     Inter har lining-numerals som default, perfekt for stats.
     Vekt-hierarki gir display-personlighet: 700 på h1, 400 på body. */
  --metis-font-heading: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --metis-font-heading-weight: 700;
  --metis-font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --metis-font-body-weight: 400;
  --metis-font-meta: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* Reset basics ikke dekket av metis-base.css */
* { box-sizing: border-box; }
html, body {
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

body {
  font-family: var(--metis-font-body);
  color: var(--metis-text-primary);
  background: var(--metis-white); /* nøytral fallback — slides setter sine egne bakgrunner */
}

/* ============================================
   SLIDES CONTAINER
   Bruker position: fixed + inset: 0 for å låse til viewport.
   Dette er mer robust enn 100vw/100vh som kan ha edge-cases
   med scrollbars, browser-info-bars eller pinch-zoom.
   ============================================ */

.slides-container {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

.slide {
  --slide-content-max: 1280px;
  position: absolute;
  inset: 0;
  display: none;
  /* Padding vokser på brede skjermer slik at innhold sentreres i en
     cap'd 1280px-kolonne. På smale skjermer faller den tilbake til 8vw.
     Effekt: ~20%/60%/20%-inndeling på 1920px+, 8vw gutter under. */
  padding: 6vh max(8vw, calc((100% - var(--slide-content-max)) / 2));
  overflow: hidden;
  opacity: 0;
  background: var(--metis-white); /* default — slide-typer kan overstyre */
  color: var(--metis-text-primary);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.slide.active {
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 1;
}

.slide.exiting-left { transform: translateX(-30px); opacity: 0; }
.slide.exiting-right { transform: translateX(30px); opacity: 0; }

/* ============================================
   PROGRESS BAR (top)
   ============================================ */

.progress-container {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--metis-border-subtle);
  z-index: 100;
}

.progress-bar {
  height: 100%;
  background: var(--metis-primary);
  width: 0;
  transition: width 0.4s ease;
}

/* ============================================
   NAV ARROWS (bottom right)
   ============================================ */

.nav-arrows {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  gap: 8px;
  z-index: 100;
}

.nav-arrow {
  width: 44px;
  height: 44px;
  border: 1px solid var(--metis-border-default);
  background: var(--metis-white-pure);
  border-radius: var(--metis-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--metis-text-primary);
  transition: all var(--metis-duration-fast);
}

.nav-arrow:hover:not(:disabled) {
  background: var(--metis-primary);
  color: var(--metis-text-inverse);
  border-color: var(--metis-primary);
}

.nav-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.nav-arrow svg {
  width: 22px;
  height: 22px;
}

/* ============================================
   SLIDE COUNTER + MENU (bottom left)
   ============================================ */

.slide-counter-wrapper {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 100;
}

.slide-counter {
  background: var(--metis-white-pure);
  border: 1px solid var(--metis-border-default);
  border-radius: var(--metis-radius-md);
  padding: 8px 14px;
  font-size: var(--metis-font-size-small);
  cursor: pointer;
  user-select: none;
  font-family: var(--metis-font-meta);
}

.slide-menu {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  background: var(--metis-white-pure);
  border: 1px solid var(--metis-border-default);
  border-radius: var(--metis-radius-md);
  box-shadow: var(--metis-shadow-lg);
  max-height: 60vh;
  overflow-y: auto;
  min-width: 280px;
}

.slide-menu.open { display: block; }

.slide-menu-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
}

.slide-menu-item {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 10px 16px;
  cursor: pointer;
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--metis-font-body);
  font-size: var(--metis-font-size-small);
  color: var(--metis-text-primary);
}

.slide-menu-item:hover { background: var(--metis-gray-100); }
.slide-menu-item.current { background: var(--metis-primary); color: var(--metis-text-inverse); }

.slide-menu-num {
  font-variant-numeric: tabular-nums;
  font-size: 0.75em;
  color: var(--metis-text-muted);
  min-width: 22px;
}

.slide-menu-item.current .slide-menu-num { color: rgba(255,255,255,0.7); }

/* ============================================
   KEYBOARD HINT (auto-hides)
   ============================================ */

.keyboard-hint {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.75);
  color: white;
  padding: 8px 16px;
  border-radius: var(--metis-radius-md);
  font-size: var(--metis-font-size-small);
  z-index: 200;
  transition: opacity var(--metis-duration-normal);
}

.keyboard-hint.fade-out { opacity: 0; pointer-events: none; }

.keyboard-hint kbd {
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: var(--metis-font-mono);
  font-size: 0.85em;
  margin: 0 2px;
}

/* ============================================
   CLICK-REVEAL INDICATOR
   ============================================ */

.click-reveal-indicator {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--metis-primary);
  color: var(--metis-text-inverse);
  padding: 8px 16px;
  border-radius: var(--metis-radius-full);
  font-size: var(--metis-font-size-small);
  z-index: 100;
  /* Fjernet bounce-animasjonen — bakgrunnen er det som skal animeres */
}

.click-reveal-indicator.visible { display: flex; }

.click-reveal-indicator svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-4px); }
}

/* ============================================
   ANIMATABLE ELEMENTS (data-delay)
   ============================================ */

[data-delay] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-delay].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-delay] { opacity: 1; transform: none; }
  .click-reveal-indicator { animation: none; }
}

/* ============================================
   FULLSCREEN ADJUSTMENTS
   ============================================ */

:fullscreen .slide-counter-wrapper,
:fullscreen .nav-arrows {
  opacity: 0.4;
  transition: opacity 0.2s;
}

:fullscreen .slide-counter-wrapper:hover,
:fullscreen .nav-arrows:hover {
  opacity: 1;
}

/* ============================================
   IMAGE LIGHTBOX — klikk-for-å-forstørre på alle bilder i slides
   ============================================ */

.slide img {
  cursor: zoom-in;
  transition: transform var(--metis-duration-fast) ease;
}

.slide img:hover {
  transform: scale(1.01);
}

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 5vh 5vw;
  background: rgba(0, 0, 0, 0.92);
  cursor: zoom-out;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-modal.visible {
  display: flex;
  opacity: 1;
}

.image-modal-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--metis-radius-md);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  cursor: default;
  /* Subtil scale-in når modal åpnes */
  animation: image-modal-zoom-in 0.3s ease;
}

@keyframes image-modal-zoom-in {
  from { transform: scale(0.94); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.image-modal-close {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--metis-duration-fast);
  z-index: 1;
}

.image-modal-close:hover {
  background: rgba(255, 255, 255, 0.25);
}

.image-modal-close svg {
  width: 22px;
  height: 22px;
}

@media (prefers-reduced-motion: reduce) {
  .slide img,
  .image-modal,
  .image-modal-img {
    transition: none;
    animation: none;
  }
}