/* ==========================================================================
   STICK SURVIVORS: GUT GENUG — CINEMATIC TUTORIAL SYSTEM
   Single-owner stylesheet for src/systems/tutorial.js. Loads after
   ui_overhaul.css and reuses its design tokens (--cyber-*). Nothing here
   renames or removes an existing ID; every class is prefixed `gg-tut-`
   so it can never collide with older screens.
   ========================================================================== */

:root {
  --gg-tut-z-bars: 940;
  --gg-tut-z-chapter: 945;
  --gg-tut-z-progress: 935;
  --gg-tut-z-skip: 960;
}

/* --------------------------------------------------------------------------
   Letterbox bars — shown only during non-interactive cutscene beats
   (intro, Azra Core reveal/defeat, class showcase).
   -------------------------------------------------------------------------- */
.gg-tut-bar {
  position: fixed;
  left: 0; right: 0;
  background: linear-gradient(180deg, #000 60%, rgba(0,0,0,0));
  z-index: var(--gg-tut-z-bars);
  pointer-events: none;
  transition: transform .6s var(--cyber-ease);
}
.gg-tut-bar--top {
  top: 0; height: 14vh; min-height: 84px;
  transform: translateY(-100%);
  background: linear-gradient(0deg, rgba(0,0,0,0) 0%, #000 40%);
}
.gg-tut-bar--bottom {
  bottom: 0; height: 14vh; min-height: 84px;
  transform: translateY(100%);
  background: linear-gradient(180deg, rgba(0,0,0,0) 0%, #000 40%);
}
.gg-tut-bar.gg-show { transform: translateY(0); }

/* --------------------------------------------------------------------------
   Chapter / cutscene title card
   -------------------------------------------------------------------------- */
.gg-tut-chapter {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 4px;
  z-index: var(--gg-tut-z-chapter);
  pointer-events: none;
  opacity: 0;
  transition: opacity .5s var(--cyber-ease);
}
.gg-tut-chapter.gg-show { opacity: 1; }
.gg-tut-chapter__kicker {
  font-family: var(--cyber-font-mono);
  letter-spacing: .42em;
  font-size: .72rem;
  color: var(--class-color, var(--cyber-mint));
  text-transform: uppercase;
  margin-bottom: 10px;
  opacity: .9;
}
.gg-tut-chapter__title {
  font-family: var(--cyber-font-display);
  font-weight: 900;
  letter-spacing: .05em;
  text-transform: uppercase;
  font-size: clamp(26px, 4.6vw, 54px);
  color: var(--cyber-white);
  text-shadow: 0 0 34px var(--class-color, var(--cyber-cyan)), 0 8px 30px rgba(0,0,0,.6);
  margin: 0 0 12px;
  max-width: 90vw;
}
.gg-tut-chapter__sub {
  max-width: 700px;
  font-size: 1rem;
  line-height: 1.55;
  color: rgba(237,247,255,.86);
  padding: 0 20px;
}

/* --------------------------------------------------------------------------
   Class showcase card — nested inside the chapter overlay
   -------------------------------------------------------------------------- */
.gg-tut-classcard {
  margin-top: 22px;
  width: min(520px, 88vw);
  border: 1px solid var(--class-color, var(--cyber-cyan));
  border-radius: var(--cyber-radius-lg);
  background: rgba(8,11,20,.74);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 20px 24px;
  box-shadow: 0 0 60px -16px var(--class-color, var(--cyber-cyan)), 0 20px 50px rgba(0,0,0,.5);
  pointer-events: none;
}
.gg-tut-classcard__icon {
  font-size: 2.4rem;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 14px var(--class-color, var(--cyber-cyan)));
}
.gg-tut-classcard__tags { display:flex; justify-content:center; gap:6px; flex-wrap:wrap; margin-bottom:12px; }
.gg-tut-classcard__tag {
  font-family: var(--cyber-font-mono); font-size: .6rem; letter-spacing: .12em;
  color: var(--class-color, var(--cyber-cyan)); border: 1px solid var(--class-color, var(--cyber-cyan));
  border-radius: 999px; padding: 3px 9px; text-transform: uppercase; opacity:.9;
}
.gg-tut-classcard__row {
  display: flex; justify-content: space-between; gap: 14px;
  font-size: .82rem; color: rgba(237,247,255,.85);
  border-top: 1px solid var(--cyber-line-soft);
  padding-top: 9px; margin-top: 9px; text-align: left;
}
.gg-tut-classcard__row span:first-child { font-family: var(--cyber-font-mono); letter-spacing:.14em; color: var(--cyber-grey); font-size:.66rem; align-self:center; }
.gg-tut-classcard__row b { color: var(--cyber-white); }
.gg-tut-classcard__desc { font-size: .78rem; line-height: 1.5; color: rgba(237,247,255,.78); margin-top: 10px; text-align:left; }
.gg-tut-classcard__badge {
  display: inline-block; margin-top: 14px;
  font-family: var(--cyber-font-mono); font-size: .62rem; letter-spacing: .22em;
  color: #03040a; background: var(--class-color, var(--cyber-gold));
  padding: 5px 12px; border-radius: 999px; font-weight: 800;
}

/* --------------------------------------------------------------------------
   Skip hint
   -------------------------------------------------------------------------- */
.gg-tut-skip {
  position: fixed; right: 22px; bottom: 22px;
  z-index: var(--gg-tut-z-skip);
  font-family: var(--cyber-font-mono); font-size: .66rem; letter-spacing: .12em;
  color: rgba(237,247,255,.75);
  background: rgba(5,7,13,.72);
  border: 1px solid var(--cyber-line);
  border-radius: 999px;
  padding: 9px 16px;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: opacity .3s, transform .25s, border-color .2s, color .2s;
  opacity: 0;
  transform: translateY(8px);
}
.gg-tut-skip.gg-show { opacity: 1; transform: translateY(0); }
.gg-tut-skip:hover { border-color: var(--cyber-cyan); color: var(--cyber-white); }

/* --------------------------------------------------------------------------
   Chapter progress dots
   -------------------------------------------------------------------------- */
.gg-tut-progress {
  position: fixed; top: 18px; left: 50%; transform: translateX(-50%);
  z-index: var(--gg-tut-z-progress);
  display: flex; gap: 7px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .4s;
}
.gg-tut-progress.gg-show { opacity: 1; }
.gg-tut-progress__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255,255,255,.18);
  transition: background .3s, box-shadow .3s, transform .3s;
}
.gg-tut-progress__dot.gg-done { background: var(--cyber-mint); }
.gg-tut-progress__dot.gg-active { background: var(--cyber-cyan); box-shadow: 0 0 10px var(--cyber-cyan); transform: scale(1.35); }

@media (max-width: 760px) {
  .gg-tut-bar--top, .gg-tut-bar--bottom { height: 10vh; min-height: 54px; }
  .gg-tut-classcard { padding: 16px 18px; }
  .gg-tut-skip { right: 14px; bottom: 14px; padding: 8px 12px; }
}