/* ============================================================
   Survivor's Frontier — arctic mobile-survival-game theme
   Palette & tokens from the "Arctic Expedition" design system
   ============================================================ */
:root {
  --surface: #000450;
  --surface-low: #000767;
  --surface-card: #020b6f;
  --surface-high: #121c78;
  --surface-highest: #202983;
  --on-surface: #e0e0ff;
  --on-surface-variant: #bac9cc;
  --ice: #00e5ff;
  --ice-soft: #c3f5ff;
  --ice-deep: #00626e;
  --amber: #feb300;
  --amber-soft: #ffd799;
  --amber-deep: #6a4800;
  --pine: #82e780;
  --pine-deep: #00681a;
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --shadow-ice: 0 8px 24px rgba(0, 229, 255, .15);
  --shadow-amber: 0 8px 24px rgba(254, 179, 0, .18);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Quicksand', 'Segoe UI', sans-serif;
  font-weight: 500;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--ice-soft); }

/* ---------- Snowfall canvas ---------- */
#snow-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* ---------- HUD nav ---------- */
.hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .6rem 1.25rem;
  background: rgba(0, 3, 65, .78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--surface-highest);
}

.hud__brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ice-soft);
  text-decoration: none;
  font-size: 1.05rem;
  white-space: nowrap;
}

.hud__flame { animation: flicker 2.2s infinite ease-in-out; display: inline-block; }

@keyframes flicker {
  0%, 100% { transform: scale(1) rotate(-2deg); }
  50% { transform: scale(1.12) rotate(2deg); }
}

.hud__nav { display: flex; gap: .25rem; flex-wrap: wrap; }

.hud__nav a {
  color: var(--on-surface);
  text-decoration: none;
  font-size: .85rem;
  font-weight: 700;
  padding: .45rem .7rem;
  border-radius: 999px;
  transition: background .2s, color .2s, transform .15s;
}

.hud__nav a:hover {
  background: var(--surface-highest);
  color: var(--ice);
  transform: translateY(-1px);
}

.hud__toggle {
  display: none;
  background: var(--surface-highest);
  color: var(--ice-soft);
  border: none;
  font-size: 1.3rem;
  border-radius: .5rem;
  padding: .3rem .65rem;
  cursor: pointer;
}

/* ---------- Village hero ---------- */
.village {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6.5rem 1.25rem 4rem;
  z-index: 2;
}

.village__map {
  position: absolute;
  inset: 0;
  background: url('../img/village-map.png') center / cover no-repeat;
  z-index: -2;
}

.village__vignette {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at center, rgba(0, 4, 80, .25) 0%, rgba(0, 4, 80, .78) 78%),
    linear-gradient(to bottom, rgba(0, 4, 80, .55), rgba(0, 4, 80, .25) 30%, rgba(0, 4, 80, .92) 96%);
}

.village__content {
  text-align: center;
  max-width: 880px;
  width: 100%;
}

.village__kicker {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--amber-soft);
  text-shadow: 0 2px 8px rgba(0, 0, 0, .6);
}

.village__title {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.05;
  margin: .5rem 0 .25rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, .55);
}

.village__title span { color: var(--ice); }

.village__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--ice-soft);
  font-weight: 600;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .6);
  margin-bottom: 1.75rem;
}

/* ---------- NPC guide ---------- */
.npc {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  text-align: left;
  background: rgba(2, 11, 111, .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 2px solid var(--surface-highest);
  box-shadow: inset 0 0 0 2px rgba(195, 245, 255, .08), 0 12px 32px rgba(0, 0, 0, .45);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  max-width: 640px;
  margin: 0 auto 1.75rem;
}

.npc__avatar img {
  width: 84px;
  height: 84px;
  object-fit: cover;
  object-position: top;
  border-radius: 50%;
  border: 3px solid var(--amber);
  background: #fff;
  animation: bob 3s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.npc__name {
  font-weight: 700;
  color: var(--amber-soft);
  font-size: .95rem;
  margin-bottom: .3rem;
}

.npc__tag {
  font-size: .62rem;
  background: var(--amber);
  color: var(--amber-deep);
  border-radius: 999px;
  padding: .1rem .5rem;
  vertical-align: middle;
  letter-spacing: .08em;
}

.npc__text {
  min-height: 3.4em;
  font-size: .98rem;
  color: var(--on-surface);
}

.npc__text::after {
  content: '▌';
  color: var(--ice);
  animation: blink 1s steps(1) infinite;
}

.npc__text.done::after { content: ''; }

@keyframes blink { 50% { opacity: 0; } }

.npc__actions {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-top: .6rem;
}

.npc__progress { font-size: .75rem; color: var(--on-surface-variant); }

/* ---------- Buttons ("bubbly" 3D clicky) ---------- */
.btn {
  display: inline-block;
  font-family: inherit;
  font-weight: 700;
  font-size: .9rem;
  border: none;
  border-radius: 999px;
  padding: .55rem 1.3rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform .1s, box-shadow .1s, filter .2s;
}

.btn:active { transform: translateY(2px); }

.btn--amber {
  background: var(--amber);
  color: var(--amber-deep);
  border-bottom: 3px solid var(--amber-deep);
  box-shadow: var(--shadow-amber);
}

.btn--blue {
  background: var(--ice);
  color: var(--ice-deep);
  border-bottom: 3px solid var(--ice-deep);
  box-shadow: var(--shadow-ice);
}

.btn--green {
  background: var(--pine);
  color: var(--pine-deep);
  border-bottom: 3px solid var(--pine-deep);
  box-shadow: 0 8px 24px rgba(130, 231, 128, .18);
}

.btn:hover { filter: brightness(1.08); }

/* ---------- Quest hubs ---------- */
.hubs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .8rem;
  max-width: 720px;
  margin: 0 auto;
}

.hub {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .15rem;
  padding: .9rem .5rem .75rem;
  background: rgba(2, 11, 111, .85);
  border: 2px solid var(--surface-highest);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--on-surface);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform .18s, border-color .18s, box-shadow .18s;
}

.hub:hover {
  transform: translateY(-4px) scale(1.03);
  border-color: var(--ice);
  box-shadow: var(--shadow-ice);
}

.hub__icon { font-size: 1.6rem; }
.hub__label { font-weight: 700; font-size: .88rem; color: var(--ice-soft); }
.hub__hint { font-size: .7rem; color: var(--on-surface-variant); }

.village__scroll {
  display: inline-block;
  margin-top: 2rem;
  color: var(--ice);
  text-decoration: none;
  font-size: 1.2rem;
  animation: bob 2s ease-in-out infinite;
}

/* ---------- Playable village (game mode) ---------- */
.village--game {
  padding: 0;
  display: block;
  overflow: hidden;
}

#game-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
  outline: none;
  touch-action: none;
}

.game-ui {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 5.5rem 1rem 1.5rem;
  z-index: 3;
}

.game-title { text-align: center; max-width: 100%; }
.game-title .village__title { font-size: clamp(2rem, 5.5vw, 3.2rem); }
.game-title .village__subtitle { margin-bottom: .9rem; }

.game-title__actions {
  display: flex;
  gap: .7rem;
  justify-content: center;
  flex-wrap: wrap;
  pointer-events: auto;
}

.game-hint {
  pointer-events: none;
  background: rgba(0, 3, 65, .8);
  border: 2px solid var(--surface-highest);
  color: var(--on-surface);
  font-size: .82rem;
  border-radius: 999px;
  padding: .45rem 1.1rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: opacity .6s;
  max-width: 92%;
  text-align: center;
}

.game-hint b { color: var(--amber-soft); }

.game-prompt {
  position: absolute;
  bottom: 5.2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(254, 179, 0, .95);
  color: var(--amber-deep);
  font-size: .85rem;
  font-weight: 600;
  border-radius: 999px;
  padding: .45rem 1.1rem;
  border-bottom: 3px solid var(--amber-deep);
  white-space: nowrap;
  max-width: 94%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.game-dialogue[hidden],
.game-prompt[hidden],
.game-hint[hidden] { display: none; }

.game-dialogue {
  pointer-events: auto;
  position: absolute;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(640px, calc(100% - 2rem));
  margin: 0;
}

/* ---------- Modal (game interactions) ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 3, 65, .7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem;
}

.modal[hidden] { display: none; }

.modal__panel {
  position: relative;
  background: var(--surface-low);
  border: 2px solid var(--surface-highest);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, .5);
  max-width: 1080px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 2rem 1.5rem;
  animation: modal-pop .25s cubic-bezier(.22, 1, .36, 1);
}

@keyframes modal-pop {
  from { transform: translateY(24px) scale(.97); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.modal__close {
  position: sticky;
  top: 0;
  float: right;
  z-index: 2;
}

/* ---------- Zones (sections) ---------- */
main { position: relative; z-index: 2; }

.zone { padding: 4.5rem 1.25rem; }

.zone--alt { background: linear-gradient(180deg, var(--surface) 0%, #000341 50%, var(--surface) 100%); }

.zone__inner { max-width: 1080px; margin: 0 auto; }
.zone__inner--center { text-align: center; }

.zone__title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: .4rem;
}

.zone__title small {
  font-size: .55em;
  color: var(--on-surface-variant);
  font-weight: 600;
}

.zone__emoji { margin-right: .35rem; }

.zone__lead { color: var(--on-surface-variant); margin-bottom: 2rem; max-width: 640px; }
.zone__inner--center .zone__lead { margin-left: auto; margin-right: auto; }

/* ---------- Quest cards (experience) ---------- */
.quest {
  background: var(--surface-card);
  border: 2px solid var(--surface-highest);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.75rem;
  box-shadow: inset 0 0 0 2px rgba(195, 245, 255, .05), 0 10px 30px rgba(0, 0, 0, .35);
}

.quest__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 1rem 1.4rem;
}

.quest__head--amber { background: linear-gradient(90deg, rgba(254, 179, 0, .22), transparent 70%); border-bottom: 2px solid rgba(254, 179, 0, .35); }
.quest__head--blue  { background: linear-gradient(90deg, rgba(0, 229, 255, .18), transparent 70%); border-bottom: 2px solid rgba(0, 229, 255, .3); }

.quest__head h3 { font-size: 1.25rem; font-weight: 700; letter-spacing: -.01em; }
.quest__meta { color: var(--on-surface-variant); font-size: .85rem; }

.quest__badge { display: flex; flex-direction: column; align-items: flex-end; gap: .2rem; }

.quest__status {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  background: rgba(130, 231, 128, .18);
  color: var(--pine);
  border: 1px solid var(--pine-deep);
  border-radius: 999px;
  padding: .15rem .6rem;
}

.quest__dates { font-size: .78rem; color: var(--on-surface-variant); }

.quest__log { list-style: none; padding: 1.1rem 1.4rem .4rem; }

.quest__log li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: .7rem;
  font-size: .93rem;
}

.quest__log li::before { content: '❄'; position: absolute; left: 0; color: var(--ice); }

.quest__log b { color: var(--ice-soft); }

.quest__rewards {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: .6rem 1.4rem 1.2rem;
}

/* ---------- Chips ---------- */
.chip {
  font-size: .72rem;
  font-weight: 700;
  border-radius: 999px;
  padding: .22rem .7rem;
  white-space: nowrap;
}

.chip--green { background: rgba(130, 231, 128, .15); color: var(--pine); border: 1px solid var(--pine-deep); }
.chip--blue  { background: rgba(0, 229, 255, .12); color: var(--ice); border: 1px solid var(--ice-deep); }
.chip--amber { background: rgba(254, 179, 0, .15); color: var(--amber-soft); border: 1px solid var(--amber-deep); }

/* ---------- Inventory grid (skills / education) ---------- */
.inv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem;
}

.inv-grid--two { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }

.inv-card {
  background: var(--surface-card);
  border: 2px solid var(--surface-highest);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem 1.3rem;
  box-shadow: inset 0 0 0 2px rgba(195, 245, 255, .05);
  transition: transform .18s, border-color .18s, box-shadow .18s;
}

.inv-card:hover {
  transform: translateY(-4px);
  border-color: var(--ice);
  box-shadow: var(--shadow-ice);
}

.inv-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .75rem; }
.inv-card h3 small { display: block; font-size: .72rem; color: var(--on-surface-variant); font-weight: 600; margin-top: .1rem; }

.inv-items { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .9rem; }

.slot {
  font-size: .74rem;
  font-weight: 700;
  background: var(--surface-high);
  border: 1px solid var(--surface-highest);
  color: var(--ice-soft);
  border-radius: .5rem;
  padding: .28rem .6rem;
  transition: transform .12s, background .12s, border-color .12s;
  cursor: default;
}

.slot:hover {
  transform: scale(1.08);
  background: var(--surface-highest);
  border-color: var(--ice);
}

/* ---------- XP bars ---------- */
.xpbar {
  position: relative;
  height: 18px;
  background: var(--surface-low);
  border-radius: 999px;
  border: 1px solid var(--surface-highest);
  overflow: hidden;
}

.xpbar__fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ice-deep), var(--ice) 60%, var(--ice-soft));
  transition: width 1.2s cubic-bezier(.22, 1, .36, 1);
  position: relative;
}

.xpbar__fill::after {
  content: '';
  position: absolute;
  top: 2px; left: 4px; right: 4px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .35);
}

.reveal.visible .xpbar__fill { width: var(--xp); }

.xpbar span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .62rem;
  font-weight: 700;
  color: var(--surface);
  mix-blend-mode: screen;
  color: var(--ice-soft);
  text-shadow: 0 1px 2px rgba(0, 0, 0, .6);
}

/* ---------- Training camp ---------- */
.camp__where { font-weight: 600; color: var(--ice-soft); font-size: .9rem; }
.camp__when { font-size: .82rem; color: var(--on-surface-variant); margin: .3rem 0 .6rem; }
.camp__desc { font-size: .9rem; color: var(--on-surface-variant); }

/* ---------- Project cards ---------- */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.1rem;
}

.proj {
  display: flex;
  flex-direction: column;
  background: var(--surface-card);
  border: 2px solid var(--surface-highest);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--on-surface);
  transition: transform .18s, border-color .18s, box-shadow .18s;
}

.proj:hover {
  transform: translateY(-5px);
  border-color: var(--amber);
  box-shadow: var(--shadow-amber);
}

.proj__banner {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--surface-high), var(--surface-highest));
  border-bottom: 2px solid var(--surface-highest);
}

.proj__body { padding: 1rem 1.15rem 1.15rem; display: flex; flex-direction: column; gap: .45rem; flex: 1; }

.proj__name { font-weight: 700; font-size: 1rem; color: var(--ice-soft); letter-spacing: -.01em; }

.proj__desc { font-size: .82rem; color: var(--on-surface-variant); flex: 1; }

.proj__meta { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .3rem; }

/* ---------- Signal fire ---------- */
.signal__actions {
  display: flex;
  gap: .8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.signal__loc { color: var(--on-surface-variant); font-size: .88rem; }

/* ---------- Footer ---------- */
.footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 1.6rem 1rem 2rem;
  font-size: .8rem;
  color: var(--on-surface-variant);
  border-top: 2px solid var(--surface-low);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.22, 1, .36, 1);
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .reveal .xpbar__fill { width: var(--xp); }
}

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .hud__toggle { display: block; }

  .hud__nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: rgba(0, 3, 65, .96);
    backdrop-filter: blur(14px);
    padding: .6rem 1rem 1rem;
    border-bottom: 2px solid var(--surface-highest);
  }

  .hud__nav.open { display: flex; }

  .npc { flex-direction: column; align-items: center; text-align: center; }
  .npc__actions { justify-content: center; }
  .quest__badge { align-items: flex-start; }
}