/* ------------------------------------------------------------------
   Front page — tobiaswidmann.eu
   Light motion + interactive pieces; palette follows styles.scss.
   ------------------------------------------------------------------ */

:root {
  --tw-navy: #010048;
  --tw-navy-soft: #eef0fb;
  --tw-pink: #e64980;
  --tw-ink: #111827;
  --tw-ink-2: #374151;
  --tw-muted: #6b7280;
  --tw-line: #e5e7eb;
  --tw-bg-soft: #f8f9fb;
  --emo-anger: #e34948;
  --emo-fear: #4a3aa7;
  --emo-disgust: #008300;
  --emo-sadness: #2a78d6;
  --emo-joy: #eb6834;
  --emo-enthusiasm: #1baf7a;
  --emo-pride: #eda100;
  --emo-hope: #e87ba4;
}

/* ---------- photo + bio entrance ---------- */
.about-photo .avatar { animation: tw-photo-in .8s cubic-bezier(.2,.7,.2,1) both; }
.about-text { animation: tw-fade-up .7s ease both; animation-delay: .15s; }
@keyframes tw-photo-in { from { opacity: 0; transform: scale(.94); } to { opacity: 1; transform: none; } }
@keyframes tw-fade-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.tw-home { margin-top: 2.25rem; color: var(--tw-ink); }
.tw-home *, .tw-home *::before, .tw-home *::after { box-sizing: border-box; }
.tw-home .tw-label {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.76rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--tw-muted); margin: 0 0 0.8rem;
}
.tw-home .tw-label::after { content: ""; flex: 1; height: 1px; background: var(--tw-line); }

/* ---------- reveal on scroll (fail-safe: only hidden once JS is active) ---------- */
.tw-home.tw-js .tw-reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.tw-home.tw-js .tw-reveal.is-in { opacity: 1; transform: none; }

/* ---------- embedding space ---------- */
.tw-emb { margin: 0 0 2.5rem; }
.tw-emb-canvas {
  position: relative; height: 300px; overflow: hidden;
  border: 1px solid var(--tw-line); border-radius: 14px;
  background:
    radial-gradient(circle at 18% 40%, rgba(27, 175, 122, 0.06), transparent 45%),
    radial-gradient(circle at 82% 55%, rgba(74, 58, 167, 0.06), transparent 45%),
    var(--tw-bg-soft);
  cursor: crosshair;
}
.tw-emb-layer { position: absolute; inset: 0; transition: transform .35s ease-out; will-change: transform; }
.tw-emb-word {
  position: absolute; transform: translate(-50%, -50%);
  font-size: 13px; font-weight: 500; line-height: 1; white-space: nowrap;
  color: var(--c, var(--tw-navy)); opacity: 0;
  padding: 3px 5px; border-radius: 6px;
  cursor: default; user-select: none;
  transition: opacity .5s ease, background .2s ease, transform .2s ease;
}
.tw-emb-canvas.is-in .tw-emb-word { opacity: .88; transition-delay: calc(var(--k, 0) * 18ms); }
.tw-emb-word::before {
  content: ""; position: absolute; left: -4px; top: 50%; width: 5px; height: 5px; border-radius: 50%;
  background: var(--c); transform: translate(-100%, -50%); opacity: .55;
}
.tw-emb-word .tw-emb-in { display: inline-block; animation: tw-float var(--d, 8s) ease-in-out var(--dl, 0s) infinite alternate; }
@keyframes tw-float { from { transform: translate(0, 0); } to { transform: translate(var(--fx, 3px), var(--fy, -4px)); } }
.tw-emb-canvas:hover .tw-emb-word { opacity: .5; }
.tw-emb-canvas:hover .tw-emb-word:hover, .tw-emb-word.is-hot { opacity: 1 !important; background: #fff; box-shadow: 0 2px 10px rgba(1, 0, 72, 0.12); z-index: 3; transform: translate(-50%, -50%) scale(1.08); }
.tw-emb-tip {
  position: absolute; z-index: 4; pointer-events: none;
  background: var(--tw-navy); color: #fff; font-size: 12px; line-height: 1.35;
  padding: 0.35rem 0.55rem; border-radius: 8px; white-space: nowrap;
  opacity: 0; transform: translate(-50%, 6px); transition: opacity .15s ease, transform .15s ease;
}
.tw-emb-tip.is-on { opacity: 1; transform: translate(-50%, 0); }
.tw-emb-tip b { font-weight: 600; }
.tw-emb-tip small { display: block; opacity: .8; }
.tw-emb-cap { font-size: 0.82rem; color: var(--tw-muted); margin: 0.6rem 0 0; max-width: 78ch; }
.tw-emb-legend { display: flex; flex-wrap: wrap; gap: 0.3rem 0.75rem; margin: 0.45rem 0 0; padding: 0; list-style: none; }
.tw-emb-legend li { display: inline-flex; align-items: center; gap: 0.3rem; font-size: 0.76rem; color: var(--tw-ink-2); cursor: pointer; }
.tw-emb-legend li::before { content: ""; width: 9px; height: 9px; border-radius: 3px; background: var(--c); }
.tw-emb-legend li:hover { color: var(--tw-navy); }

/* ---------- research-interest chips ---------- */
.tw-interests { margin: 0 0 2.5rem; }
.tw-chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tw-chip {
  font: inherit; font-size: 0.9rem; font-weight: 500; color: var(--tw-navy);
  background: #fff; border: 1px solid var(--tw-line); border-radius: 999px;
  padding: 0.4rem 0.9rem; cursor: pointer;
  transition: border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.tw-chip:hover, .tw-chip:focus-visible { border-color: var(--tw-navy); transform: translateY(-1px); outline: none; }
.tw-chip.is-on { background: var(--tw-navy); border-color: var(--tw-navy); color: #fff; box-shadow: 0 6px 16px rgba(1, 0, 72, 0.15); }
.tw-chip-panel {
  margin-top: 0.9rem; padding: 0.9rem 1.1rem; min-height: 4.6rem;
  background: var(--tw-bg-soft); border: 1px solid var(--tw-line); border-left: 4px solid var(--tw-pink); border-radius: 10px;
  display: grid; grid-template-columns: 1fr auto; gap: 0.5rem 1.25rem; align-items: center;
}
.tw-chip-panel p { margin: 0; color: var(--tw-ink-2); font-size: 0.95rem; transition: opacity .25s ease; }
.tw-chip-panel.is-swap p { opacity: 0; }
.tw-chip-panel a { white-space: nowrap; font-size: 0.88rem; font-weight: 500; }
.tw-chip-progress { grid-column: 1 / -1; height: 2px; background: var(--tw-line); border-radius: 1px; overflow: hidden; }
.tw-chip-progress i { display: block; height: 100%; width: 0; background: var(--tw-pink); }
.tw-chip-progress i.is-run { animation: tw-progress var(--t, 5s) linear forwards; }
@keyframes tw-progress { from { width: 0; } to { width: 100%; } }

/* ---------- numbers ---------- */
.tw-numbers { margin: 0 0 1rem; }
.tw-nums { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.7rem; }
.tw-nums li {
  background: #fff; border: 1px solid var(--tw-line); border-radius: 12px; padding: 0.9rem 1rem 0.8rem;
  display: flex; flex-direction: column; gap: 0.15rem;
  transition: transform .2s ease, box-shadow .2s ease;
}
.tw-nums li:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(1, 0, 72, 0.08); }
.tw-num { font-size: 1.9rem; font-weight: 700; color: var(--tw-navy); line-height: 1.05; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.tw-num-l { font-size: 0.82rem; color: var(--tw-ink-2); line-height: 1.3; }
.tw-num-s { font-size: 0.74rem; color: var(--tw-muted); margin-top: auto; padding-top: 0.35rem; }
.tw-num-s a { color: var(--tw-muted); }
.tw-num-s a:hover { color: var(--tw-pink); }
.tw-methods { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tw-methods li { font-size: 0.84rem; font-weight: 500; padding: 0.32rem 0.75rem; border-radius: 999px; border: 1px solid transparent; transition: transform .2s ease; }
.tw-methods li:hover { transform: translateY(-1px); }
.tw-methods li.is-measure { background: var(--tw-navy-soft); color: var(--tw-navy); border-color: #dfe3f7; }
.tw-methods li.is-explain { background: #fdeef4; color: #b3225f; border-color: #f7d3e1; }
.tw-methods-key { font-size: 0.78rem; color: var(--tw-muted); margin: 0.55rem 0 0; }
.tw-methods-key span { font-weight: 600; padding: 0 0.15rem; }
.tw-methods-key .is-measure { color: var(--tw-navy); }
.tw-methods-key .is-explain { color: #b3225f; }

/* ---------- responsive ---------- */
@media (max-width: 900px) { .tw-nums { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
  .tw-nums { grid-template-columns: 1fr 1fr; }
  .tw-nums li:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .tw-emb-canvas { height: 260px; }
  .tw-emb-word { font-size: 12px; }
  .tw-chip-panel { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .about-photo .avatar, .about-text, .tw-emb-word .tw-emb-in, .tw-chip-progress i { animation: none !important; }
  .tw-home.tw-js .tw-reveal { opacity: 1; transform: none; transition: none; }
  .tw-emb-layer { transition: none; }
}