/* ===== PACL Side-Channel One-Day Class landing page ===== */
:root {
  --cream: #fbf7ef;
  --ink: #1b2a41;
  --blue: #3f74c9;
  --blue-dark: #1f4f9c;
  --line: #e3dccd;
  --muted: #6b7686;
  --green: #1f8a4c;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.event-body {
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); }
h1, h2 { margin: 0 0 0.5em; font-weight: 900; letter-spacing: -0.02em; }
h2 { font-size: 1.6rem; }

/* ----- hero ----- */
.hero { padding: 32px 16px 24px; }
.hero__inner { max-width: 1120px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.25fr; gap: 32px; align-items: center; }
.hero__labrow { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.hero__logo { width: 120px; height: auto; background: #fff; border-radius: 14px; border: 2px solid var(--line); padding: 6px; }
.hero__lab { font-weight: 900; font-size: 1.15rem; color: var(--blue-dark); }
.hero__lab span { display: block; font-weight: 400; font-size: 0.8rem; color: var(--muted); }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.15; color: var(--blue-dark); }
.hero h1 br + * { color: var(--ink); }
.hero__desc { font-size: 1.05rem; color: #2e3a4d; margin: 12px 0 18px; }
.hero__tags { font-weight: 700; color: var(--blue); margin: -8px 0 16px; font-size: 1rem; }
.hero__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }
.chip { border: 2px solid var(--ink); border-radius: 999px; padding: 4px 14px; font-weight: 700; font-size: 0.9rem; background: #fff; }
.chip--dark { background: var(--ink); color: #fff; }
.btn { display: inline-block; padding: 10px 20px; border-radius: 999px; font-weight: 700; text-decoration: none; margin: 4px 6px 4px 0; transition: transform .12s ease, box-shadow .12s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(31,79,156,0.2); }
.btn--primary { background: var(--blue); color: #fff; }
.btn--ghost { background: transparent; color: var(--blue-dark); border: 2px solid var(--blue-dark); }
.btn--big { font-size: 1.05rem; padding: 14px 26px; }

/* ----- animated scene ----- */
.hero__anim { background: #fff; border: 2px solid var(--line); border-radius: 20px; padding: 10px 10px 6px; box-shadow: 0 10px 30px rgba(27,42,65,0.08); }
#scene { width: 100%; height: auto; display: block; }
.scene-bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 6px 8px 0; font-size: 0.9rem; }
.scene-step { color: var(--ink); font-weight: 700; font-size: 1rem; }
.replay { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 4px 12px; cursor: pointer; font: inherit; font-size: 0.85rem; color: var(--blue-dark); }
.replay:hover { background: #f1f5fb; }
.scene-how { margin: 6px 8px 4px; font-size: 0.85rem; color: var(--muted); }

/* svg text styles */
.t-label { font: 900 22px "Noto Sans KR", sans-serif; fill: #1b2a41; }
.t-status { font: 900 22px "Noto Sans KR", sans-serif; fill: #1f4f9c; }
.t-count { font: 900 16px "Noto Sans KR", sans-serif; fill: #1f4f9c; }
.t-mono { font: 700 15px ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
.t-chip { font: 700 11px ui-monospace, Menlo, monospace; fill: #d8dde3; letter-spacing: 0.5px; }
.t-chip2 { font: 900 10px ui-monospace, Menlo, monospace; fill: #8fd9a8; }
.t-chip3 { font: 500 6.5px ui-monospace, Menlo, monospace; fill: #8a9099; }
.t-silk { font: 700 6px ui-monospace, Menlo, monospace; fill: #e9f3ec; opacity: 0.9; }
.t-coat { font: 900 9px "Noto Sans KR", sans-serif; fill: #1f4f9c; }
.t-coat2 { font: 700 8px "Noto Sans KR", sans-serif; fill: #1f4f9c; }
.t-banner { font: 900 18px "Noto Sans KR", sans-serif; fill: #fff; }

/* key bytes */
.kt { fill: #a3acb8; font: 900 34px ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
.kt--locked { fill: #1f8a4c; }

/* probe: hangs above the chip, drops onto it while probing */
#probe { transform-box: view-box; transform: translate(479px, 218px); transition: transform .7s cubic-bezier(.4,0,.2,1); }
.probing #probe { transform: translate(479px, 266px); }

/* zap: sparks + fur + shiver */
#sparks, #fur { transition: opacity .1s; }
.zap #sparks { opacity: 1; animation: sparkle .18s steps(2) infinite; }
.zap #fur { opacity: 1; }
/* each strand of fur jitters on its own rhythm while zapped */
.spike { transform-box: fill-box; transform-origin: 50% 100%; }
.zap .s1 { animation: furWiggle .17s ease-in-out infinite alternate; }
.zap .s2 { animation: furWiggle2 .13s ease-in-out infinite alternate; }
.zap .s3 { animation: furWiggle .21s ease-in-out infinite alternate-reverse; }
.zap .s4 { animation: furWiggle2 .19s ease-in-out infinite alternate-reverse; }
.zap .s5 { animation: furWiggle .15s ease-in-out infinite alternate; }
@keyframes furWiggle  { from { transform: translate(-3px, 2px) rotate(-14deg) scaleY(0.85); } to { transform: translate(3px, -3px) rotate(12deg) scaleY(1.2); } }
@keyframes furWiggle2 { from { transform: translate(2px, -2px) rotate(10deg) scaleY(1.15); } to { transform: translate(-3px, 3px) rotate(-16deg) scaleY(0.8); } }
.zap #dalgu-body { animation: shiver .12s linear infinite; }
@keyframes sparkle { from { transform: translate(0,0); } to { transform: translate(1px,-1px); } }
@keyframes shiver { 0% { transform: translate(0,0); } 50% { transform: translate(2px,-1px); } 100% { transform: translate(0,0); } }

/* success */
.done #banner { opacity: 1; transition: opacity .3s; }
.done #blush { opacity: 1; }
.done #dalgu-body { animation: hop .6s ease-out 2; }
@keyframes hop { 0% { transform: translate(0,0); } 40% { transform: translate(0,-30px); } 100% { transform: translate(0,0); } }

@media (prefers-reduced-motion: reduce) {
  #probe, #sparks, #fur, #banner { transition: none; animation: none !important; }
  .zap #dalgu-body, .done #dalgu-body, .zap .spike { animation: none !important; }
}

/* ----- content ----- */
.content { max-width: 1120px; margin: 0 auto; padding: 8px 16px 40px; }
.section { margin: 28px 0; }
.about { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; align-items: center; background: #fff; border: 2px solid var(--line); border-radius: 20px; padding: 20px; }
.about__img { width: 100%; border-radius: 14px; display: block; }
.about__text p { margin: 0 0 10px; }
.about__who { color: var(--blue-dark); font-weight: 500; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.info { background: #fff; border: 2px solid var(--line); border-radius: 16px; padding: 16px 18px; }
.info__k { font-size: 0.85rem; font-weight: 700; color: var(--blue-dark); margin-bottom: 4px; }
.info__v { font-weight: 700; font-size: 1.05rem; }
.info__s { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }
.info__s--strong { color: #c0392b; font-weight: 700; font-size: 0.95rem; margin-top: 6px; }

.timeline { list-style: none; margin: 0; padding: 0; background: #fff; border: 2px solid var(--line); border-radius: 16px; overflow: hidden; }
.timeline li { display: grid; grid-template-columns: 150px 1fr; gap: 12px; padding: 12px 18px; border-top: 1px dashed var(--line); align-items: center; }
.timeline li:first-child { border-top: 0; }
.tl__time { font-weight: 700; color: var(--blue-dark); font-variant-numeric: tabular-nums; }
.tl--main { background: #f3f7fd; }
.tl--main .tl__what { font-weight: 700; }
.badge-main { display: inline-block; background: var(--blue); color: #fff; font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; margin-left: 6px; vertical-align: middle; }
.tl__sub { color: var(--muted); font-size: 0.9rem; margin-left: 6px; }

.apply { background: var(--ink); color: #fff; border-radius: 20px; padding: 28px 24px; }
.apply h2 { color: #fff; }
.apply a { color: #ffd166; }
.apply .btn--primary { color: #fff; background: var(--blue); }
.apply__note { margin-top: 14px; color: #cfd8e6; }
.apply__deadline { font-size: 1.15rem; margin: 0 0 6px; }
.apply__deadline strong { color: #ffd166; }
.apply__links { font-size: 0.9rem; color: #9fb0c6; }

.event-footer { max-width: 1120px; margin: 0 auto; padding: 10px 16px 40px; display: flex; gap: 16px; align-items: center; color: var(--muted); font-size: 0.85rem; }
.event-footer img { border-radius: 12px; background: #fff; }

@media (max-width: 860px) {
  .hero__inner { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .info-grid { grid-template-columns: 1fr; }
  .timeline li { grid-template-columns: 1fr; gap: 2px; }
  .scene-bar { flex-direction: column; align-items: flex-start; }
}

/* ===== language toggle (KO / EN) ===== */
html[lang="ko"] .en, html[lang="en"] .ko { display: none !important; }
.lang-toggle { position: fixed; top: 14px; right: 14px; z-index: 50; display: flex; background: #fff; border: 1.5px solid var(--line); border-radius: 999px; padding: 3px; box-shadow: 0 4px 14px rgba(27,42,65,0.12); }
.lang-toggle button { border: 0; background: transparent; font: inherit; font-weight: 700; font-size: 0.82rem; color: var(--muted); padding: 5px 12px; border-radius: 999px; cursor: pointer; }
html[lang="ko"] .lang-toggle button[data-lang="ko"], html[lang="en"] .lang-toggle button[data-lang="en"] { background: var(--blue); color: #fff; }