/* Djup och rörelse: bakgrundsglöd, glaskort, 3D-lutning, mjuka intoningar och knappar.
   Laddas sist på varje sida. Allt rörligt stängs av om användaren valt "minska rörelse".
   Prestanda: inga oändliga animationer, ingen backdrop-filter på korten och inga filter-animationer.
   Sådant tvingar webbläsaren att rita om hela sidan varje bildruta och gjorde sidan laggig. */

/* ---------- Bakgrundsglöd ---------- */
body { position: relative; isolation: isolate; }

body::before {
  content: '';
  position: fixed;
  inset: -20vmax;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(38vmax 38vmax at 18% 12%, var(--aurora-1), transparent 70%),
    radial-gradient(34vmax 34vmax at 88% 18%, var(--aurora-3), transparent 70%),
    radial-gradient(40vmax 40vmax at 62% 92%, var(--aurora-2), transparent 70%);
}

/* ---------- Glaskort ---------- */
.sidebar,
.card,
.stat:not(.stat-dark),
.group,
.hero-stat:not(.is-dark),
.item-card,
.edit-card,
.advice,
.empty,
.pref-card {
  background: var(--glass);
  box-shadow: inset 0 1px 0 var(--glass-border), var(--shadow-card);
}

.sidebar { box-shadow: inset -1px 0 0 var(--glass-border); }

/* På mobil ligger menyn ovanpå innehållet och måste vara täckande */
@media (max-width: 900px) {
  .sidebar { background: var(--surface); box-shadow: var(--shadow-card); }
}
.group.is-locked { background: var(--glass); opacity: .92; }

/* Tabellen och fält behöver täckande bakgrund (fast kolumn, läsbarhet) */
.table-wrap { background: var(--surface); box-shadow: var(--shadow-card); }

/* De framhävda korten får en svag glöd i accentfärgen */
.stat-dark,
.hero-stat.is-dark {
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 48px -24px var(--accent-glow), var(--shadow-card);
}
.stat-dark::before,
.hero-stat.is-dark::before {
  content: '';
  position: absolute;
  inset: auto -30% -60% auto;
  width: 80%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow), transparent 65%);
  opacity: .55;
  pointer-events: none;
}
.stat-dark > *, .hero-stat.is-dark > * { position: relative; }

/* ---------- Lyft och 3D-lutning ---------- */
.stat,
.hero-stat,
.item-card,
.ring-card,
.section-card {
  transition: transform .5s var(--ease-out), box-shadow .3s ease, border-color .3s;
}
.stat:hover,
.hero-stat:hover,
.item-card:hover,
.ring-card:hover {
  box-shadow: inset 0 1px 0 var(--glass-border), var(--shadow-lift);
}

/* js/motion.js sätter --rx, --ry (lutning) och --gx, --gy (var ljuset träffar) */
.tilt {
  position: relative;
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--lift, 0px));
}
.tilt.is-tilting { will-change: transform; }
.tilt::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--gx, 50%) var(--gy, 50%), rgba(255, 255, 255, .12), transparent 42%);
  opacity: var(--glare, 0);
  transition: opacity .4s var(--ease-out);
  pointer-events: none;
}
.tilt.is-tilting { transition: transform .12s linear, box-shadow .3s ease; }

/* ---------- Mjuk intoning när sidan visas ---------- */
@keyframes rise-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

html:not(.auth-pending) .main > *,
html:not(.auth-pending) .home-stats > *,
html:not(.auth-pending) .stats > *,
html:not(.auth-pending) .hero-stats > *,
.auth-box, .hero, .ob-grid > * {
  animation: rise-in .38s var(--ease-out) backwards;
}
.main > *:nth-child(2) { animation-delay: .02s; }
.main > *:nth-child(3) { animation-delay: .04s; }
.main > *:nth-child(4) { animation-delay: .06s; }
.main > *:nth-child(5) { animation-delay: .08s; }
.main > *:nth-child(6) { animation-delay: .1s; }
.main > *:nth-child(n+7) { animation-delay: .12s; }
.home-stats > *:nth-child(2), .stats > *:nth-child(2), .hero-stats > *:nth-child(2) { animation-delay: .05s; }
.home-stats > *:nth-child(3), .stats > *:nth-child(3), .hero-stats > *:nth-child(3) { animation-delay: .08s; }
.home-stats > *:nth-child(4), .stats > *:nth-child(4) { animation-delay: .11s; }
.stats > *:nth-child(5) { animation-delay: .14s; }
.hero { animation-delay: .05s; }
.auth-box { animation-delay: .15s; }

/* Sidan tonas ut när man klickar på en länk till en annan sida (js/motion.js) */
body.is-leaving .main,
body.is-leaving .auth,
body.is-leaving .ob {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity .08s ease, transform .08s ease;
}

/* ---------- Knappar och meny ---------- */
.btn {
  transition: transform .2s var(--ease-out), background .2s, border-color .2s, color .2s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 10px 24px -14px rgba(0, 0, 0, .35); }
.btn:active:not(:disabled) { transform: translateY(0) scale(.98); }
.btn-accent { box-shadow: 0 10px 24px -12px var(--accent-glow); }
.btn-accent:hover:not(:disabled) { box-shadow: 0 14px 30px -12px var(--accent-glow); }

.nav a { transition: background .2s, color .2s, transform .25s var(--ease-out); }
.nav a:hover { transform: translateX(3px); }
.nav a[aria-current="page"] {
  position: relative;
  box-shadow: 0 10px 24px -16px var(--accent-glow);
}
.nav a[aria-current="page"]::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 3px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.brand-link svg { transition: transform .8s var(--ease-spring); }
.brand-link:hover svg { transform: rotate(-30deg) scale(1.08); }

/* ---------- Diagram och förlopp ---------- */
.ring-seg { transition: stroke-dasharray 1.1s var(--ease-out), opacity .2s, stroke-width .2s; }
.chart-line.is-drawing { animation: chart-draw 1.3s var(--ease-out) both; }
.chart-area.is-drawing, .chart-glow.is-drawing { animation: fade-in 1s .3s ease both; }
.chart-dot.is-drawing { animation: pop-in .5s var(--ease-spring) both; }
.chart-dot { transform-box: fill-box; transform-origin: center; }

@keyframes chart-draw { from { stroke-dashoffset: var(--len); } to { stroke-dashoffset: 0; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in { from { opacity: 0; transform: scale(0); } to { opacity: 1; transform: scale(1); } }

.segments span.is-on { animation: pop-in .45s var(--ease-spring) both; animation-delay: calc(var(--i, 0) * 25ms + .3s); }

.progress span { transform-origin: left; animation: grow-x .9s var(--ease-out) both; }
@keyframes grow-x { from { transform: scaleX(0); } to { transform: scaleX(1); } }


/* ---------- Växla ljust/mörkt ---------- */
.theme-toggle .icon-sun, [data-theme-now="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme-now="dark"] .theme-toggle .icon-sun { display: inline; }

/* Mjuk övergång när man byter läge */
html.theme-changing, html.theme-changing * {
  transition: background-color .45s ease, border-color .45s ease, color .45s ease, fill .45s ease, stroke .45s ease !important;
}

/* ---------- Minska rörelse ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .tilt { transform: none !important; }
}