html, body { min-height: 100%; }
body { overflow-x: hidden; }
#fx { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
[hidden] { display: none !important; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--muted); }
.err { color: var(--red); min-height: 1.4em; margin: .4em 0 0; font-size: 14px; }
.kicker { text-transform: uppercase; letter-spacing: .18em; font-size: 12px; color: var(--dim); margin: 0 0 12px; }

button, .primary, .ghost { font: inherit; cursor: pointer; border: 0; text-decoration: none; }
.primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; background: var(--grad); color: var(--accent-ink); font-weight: 800;
  box-shadow: 0 0 0 0 var(--accent-glow); transition: transform .2s, box-shadow .3s;
}
.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 40px -6px var(--accent-glow); }
.primary:disabled { opacity: .5; cursor: wait; transform: none; }
.primary.big { padding: 16px 30px; font-size: 17px; }
.ghost { background: transparent; color: var(--muted); padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border); }
.ghost:hover { color: var(--text); border-color: var(--border-2); }
input, textarea { font: inherit; color: var(--text); }

.top {
  position: fixed; top: 0; left: 0; right: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center;
  padding: 18px max(16px, 4vw); background: linear-gradient(var(--bg), transparent);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 28px; height: 28px; }

.view { position: relative; z-index: 1; min-height: 100vh; min-height: 100dvh; padding: 96px max(16px, 4vw) 64px; animation: in .7s cubic-bezier(.2,.8,.2,1); }
@keyframes in { from { opacity: 0; transform: translateY(14px); filter: blur(6px); } }

/* Connexion */
#v-login { display: grid; place-items: center; padding-top: 0; }
.login { text-align: center; width: min(360px, 100%); }
.login-logo { width: 84px; height: 84px; animation: float 6s ease-in-out infinite; filter: drop-shadow(0 0 30px var(--accent-glow)); }
@keyframes float { 50% { transform: translateY(-10px) rotate(8deg); } }
.login h1 { font-size: 44px; margin: 12px 0 0; }
.login form { display: grid; gap: 10px; margin-top: 28px; }
.login input, .title {
  width: 100%; padding: 14px 18px; border-radius: 999px; border: 1px solid var(--border-2);
  background: rgba(17, 14, 36, .7); backdrop-filter: blur(10px); outline: none; transition: border-color .2s, box-shadow .2s;
}
.login input:focus, .title:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }

/* Accueil */
.hero { max-width: 900px; margin: 6vh auto 48px; text-align: center; }
.hero h1 { font-size: clamp(34px, 7vw, 68px); line-height: 1.05; margin: 0 0 32px; letter-spacing: -.02em; }
.caps { max-width: 1100px; margin: 0 auto; display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.cap {
  position: relative; padding: 24px; border-radius: var(--radius); border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(23, 19, 48, .75), rgba(13, 11, 28, .6)); backdrop-filter: blur(12px);
  cursor: pointer; overflow: hidden; transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .3s;
  animation: in .8s cubic-bezier(.2,.8,.2,1) backwards;
}
.cap:hover { transform: translateY(-4px); border-color: var(--border-2); }
.cap::after {
  content: ""; position: absolute; inset: auto -30% -60% auto; width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(var(--accent-glow), transparent 70%); opacity: .5; transition: opacity .3s;
}
.cap.ready { border-color: rgba(95, 232, 240, .45); }
.cap.ready::after { background: radial-gradient(rgba(95, 232, 240, .5), transparent 70%); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 1; transform: scale(1.15); } }
.cap h3 { margin: 0 0 4px; font-size: 18px; position: relative; z-index: 1; }
.cap .when { font-size: 13px; color: var(--dim); position: relative; z-index: 1; }
.cap .count { font-family: var(--mono); font-size: 15px; margin-top: 18px; color: var(--muted); position: relative; z-index: 1; }
.cap .bar { height: 4px; border-radius: 4px; background: var(--surface-2); margin-top: 12px; overflow: hidden; position: relative; z-index: 1; }
.cap .bar i { display: block; height: 100%; background: var(--grad); border-radius: 4px; }
.mini-orb { position: absolute; top: 22px; right: 22px; width: 22px; height: 22px; border-radius: 50%; z-index: 1;
  background: radial-gradient(circle at 35% 35%, #fff, var(--accent) 45%, #2a1a66); box-shadow: 0 0 18px var(--accent-glow); }
.cap.ready .mini-orb { background: radial-gradient(circle at 35% 35%, #fff, var(--accent-2) 45%, #155); box-shadow: 0 0 22px rgba(95,232,240,.7); }
.empty { text-align: center; margin-top: 40px; }

/* Écriture */
.write { max-width: 760px; margin: 0 auto; display: grid; gap: 16px; }
.to { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; font-size: 18px; }
.to strong { font-size: 22px; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; }
.presets button, .presets .custom {
  position: relative; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); font-size: 14px; cursor: pointer; transition: all .2s;
}
.presets .on { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }
.presets .custom input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.title { border-radius: var(--radius-sm); font-size: 18px; }
.paper {
  position: relative; border-radius: var(--radius); border: 1px solid var(--border);
  background: linear-gradient(170deg, rgba(23, 19, 48, .8), rgba(10, 8, 22, .8)); backdrop-filter: blur(14px);
  box-shadow: 0 30px 80px -30px rgba(154, 108, 255, .35);
}
#letter {
  display: block; width: 100%; min-height: 52vh; padding: 28px 30px; border: 0; background: transparent; resize: vertical; outline: none;
  font-size: 18px; line-height: 1.75; caret-color: var(--accent-2); transition: opacity .2s;
}
#letter::placeholder { color: var(--dim); }
.write-foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.key, .early input { padding: 10px 16px; border-radius: 999px; border: 1px solid var(--border); background: rgba(17,14,36,.7); outline: none; width: 210px; }
.key:focus, .early input:focus { border-color: var(--orange); }
.early { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 14px; animation: in .4s; }
.early .primary { background: linear-gradient(100deg, #fbbf24, #f87171); }
.write-foot .lock { flex: 1; font-size: 13px; min-width: 200px; }

/* Capsule */
#v-capsule { display: grid; place-items: center; text-align: center; }
.capsule-view { max-width: 640px; transition: opacity .6s, transform .6s; }
.capsule-view h2 { font-size: clamp(26px, 5vw, 40px); margin: 0 0 18px; }
.orb-wrap { height: 220px; display: grid; place-items: center; margin-bottom: 24px; }
.orb {
  width: 150px; height: 150px; border-radius: 50%; position: relative;
  background: radial-gradient(circle at 34% 30%, #fff 0, #d9c9ff 8%, var(--accent) 38%, #2b1868 72%, #0d0b1c 100%);
  box-shadow: 0 0 60px var(--accent-glow), 0 0 140px rgba(95, 232, 240, .18), inset -18px -24px 40px rgba(0,0,0,.45);
  animation: breathe var(--beat, 5s) ease-in-out infinite;
  filter: hue-rotate(calc(var(--age, 0) * -75deg)) brightness(calc(1 + var(--charge, 0) * 1.4));
}
.orb::before, .orb::after {
  content: ""; position: absolute; inset: -22px; border-radius: 50%; border: 1px solid rgba(160, 140, 255, .35);
  transform: rotateX(70deg); animation: spin 9s linear infinite;
}
.orb::after { inset: -40px; border-color: rgba(95, 232, 240, .25); animation-duration: 14s; animation-direction: reverse; }
@keyframes breathe { 50% { transform: scale(1.05); box-shadow: 0 0 90px var(--accent-glow), 0 0 180px rgba(95, 232, 240, .25), inset -18px -24px 40px rgba(0,0,0,.45); } }
@keyframes spin { to { transform: rotateX(70deg) rotateZ(360deg); } }
.orb.ready { background: radial-gradient(circle at 34% 30%, #fff 0, #cffbff 10%, var(--accent-2) 40%, #4b2aa8 75%, #0d0b1c 100%); }
.orb.shake { animation: shake .5s ease-in-out infinite; }
@keyframes shake { 25% { transform: translate(2px, -1px) scale(1.06); } 75% { transform: translate(-2px, 1px) scale(1.04); } }
.orb.burst { animation: burst .9s cubic-bezier(.5,0,.2,1) forwards; }
@keyframes burst { 40% { transform: scale(.85); } to { transform: scale(6); opacity: 0; filter: blur(20px) brightness(3); } }
.orb.appear { animation: appear 1.2s cubic-bezier(.2,.8,.2,1) both, breathe var(--beat, 5s) 1.2s ease-in-out infinite; }
@keyframes appear { from { transform: scale(0); opacity: 0; filter: brightness(4) blur(8px); } }
.countdown { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 14px; }
.countdown div { min-width: 70px; padding: 12px 8px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: rgba(17,14,36,.6); backdrop-filter: blur(8px); }
.countdown b { display: block; font-family: var(--mono); font-size: 26px; }
.countdown span { font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--dim); }
.cap-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 22px; }
.letter-read {
  position: relative; z-index: 2; width: min(720px, 100%); margin: 0 auto; padding: 40px 36px; border-radius: var(--radius);
  border: 1px solid var(--border-2); background: linear-gradient(170deg, rgba(23,19,48,.85), rgba(10,8,22,.9)); backdrop-filter: blur(16px);
  text-align: left; font-size: 18px; line-height: 1.8; white-space: pre-wrap; word-wrap: break-word;
  box-shadow: 0 0 120px -20px rgba(95, 232, 240, .35);
}
.letter-read .meta { font-size: 13px; color: var(--dim); margin-bottom: 22px; white-space: normal; }
.letter-read h2 { margin: 0 0 6px; white-space: normal; }
.letter-read .ln { opacity: 0; animation: ln .9s cubic-bezier(.2,.8,.2,1) forwards; }
@keyframes ln { from { opacity: 0; filter: blur(8px); transform: translateY(6px); } to { opacity: 1; filter: none; transform: none; } }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 9; padding: 12px 20px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border-2); animation: in .4s; max-width: calc(100% - 32px);
}

/* Battement drand */
.beat { font-family: var(--mono); font-size: 12px; color: var(--dim); letter-spacing: 0; text-transform: none; margin: 8px 0 0; min-height: 1.4em; }
.beat i { display: inline-block; width: 6px; height: 6px; border-radius: 50%; margin-right: 8px; vertical-align: 1px; background: var(--accent-2); box-shadow: 0 0 8px var(--accent-2); }
.beat.on i { animation: blip 3s ease-out; }
@keyframes blip { from { transform: scale(2.4); box-shadow: 0 0 20px var(--accent-2); background: #fff; } }

/* Constellation */
.sky { position: relative; width: min(560px, 100%); aspect-ratio: 1; margin: 0 auto 56px; }
.sky .now { position: absolute; left: 50%; top: 50%; width: 18px; height: 18px; transform: translate(-50%, -50%); border-radius: 50%;
  background: radial-gradient(#fff, var(--accent) 55%, transparent 75%); box-shadow: 0 0 40px var(--accent-glow); animation: pulse 3s ease-in-out infinite; }
.sky .now span { position: absolute; top: 24px; left: 50%; transform: translateX(-50%); font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim); white-space: nowrap; }
.ring { position: absolute; left: 50%; top: 50%; width: calc(var(--r) * 100%); aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; border: 1px dashed rgba(160, 140, 255, .16); pointer-events: none; }
.ring::after { content: attr(data-l); position: absolute; top: 0; left: 50%; transform: translate(-50%, -50%); padding: 0 6px; font-size: 10px; color: var(--dim); background: var(--bg, #07060f); }
.star { position: absolute; left: 0; top: 0; width: 0; height: 0; z-index: 2; color: var(--text); text-decoration: none; outline: none; }
.star i { position: absolute; left: -9px; top: -9px; width: 18px; height: 18px; border-radius: 50%; transition: transform .25s;
  background: radial-gradient(circle, #fff 0 18%, hsl(calc(260 - 75 * var(--age, 0)) 95% 70%) 32%, transparent 70%);
  box-shadow: 0 0 16px hsl(calc(260 - 75 * var(--age, 0)) 95% 65% / .7); }
.star.ready i { animation: pulse 1.6s ease-in-out infinite; }
.star:hover i, .star:focus-visible i { transform: scale(1.7); }
.tip { position: absolute; left: 16px; top: 10px; padding: 8px 12px; border-radius: 10px; white-space: nowrap; font-size: 13px; pointer-events: none;
  background: rgba(17, 14, 36, .92); border: 1px solid var(--border-2); opacity: 0; transform: translateY(4px); transition: opacity .2s, transform .2s; }
.star.l .tip { left: auto; right: 16px; }
.tip b { display: block; }
.tip em { font-style: normal; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.star:hover .tip, .star:focus-visible .tip { opacity: 1; transform: none; }
.star:hover, .star:focus-visible { z-index: 3; }

/* Question, photo, encre */
.ask { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
#ask-q { background: none; border: 0; padding: 0; text-align: left; font-style: italic; color: var(--text); animation: in .5s; }
#ask-q:hover { color: var(--accent-2); }
.file { cursor: pointer; }
.photo { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.photo img { max-height: 120px; max-width: 100%; border-radius: 12px; border: 1px solid var(--border); transition: opacity .7s, transform .7s, filter .7s; }
.photo.sealing img { opacity: 0; transform: translateY(-60px) scale(.5); filter: blur(8px) brightness(2); }
.letter-read figure { margin: 26px 0 0; }
.letter-read figure img { display: block; max-width: 100%; border-radius: 14px; border: 1px solid var(--border-2); }
.mirror { position: absolute; left: -9999px; top: 0; visibility: hidden; white-space: pre-wrap; overflow-wrap: break-word; box-sizing: border-box; border: 0; }

/* Scellement : la page s'efface pour laisser voir les particules (le canvas est derrière) */
.write > *, .paper { transition: opacity .5s, background .5s, border-color .5s, box-shadow .5s; }
.write.sealing > :not(.paper) { opacity: 0; pointer-events: none; }
.write.sealing .paper { background: transparent; border-color: transparent; box-shadow: none; backdrop-filter: none; }

/* Ouverture : maintenir, puis retour dans le temps */
.hold { position: relative; overflow: hidden; touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; }
.hold i { position: absolute; inset: 0; background: rgba(255, 255, 255, .4); transform: scaleX(var(--p, 0)); transform-origin: left; pointer-events: none; }
.hold span { position: relative; }
.countdown .rewind { min-width: min(320px, 100%); padding: 16px 20px; }
.rewind b { font-size: 28px; }

@media (max-width: 600px) {
  #letter { padding: 20px; font-size: 17px; min-height: 48vh; }
  .letter-read { padding: 26px 20px; font-size: 17px; }
  .countdown div { min-width: 58px; }
  .countdown b { font-size: 21px; }
  .orb { width: 120px; height: 120px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }

/* --- Modes d'écriture --- */
.modes { display: flex; flex-wrap: wrap; gap: 6px; }
.modes button { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--muted); font-size: 14px; transition: all .2s; }
.modes button:hover { color: var(--text); }
.modes .on { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }

/* À l'aveugle : le textarea garde le curseur, le calque montre le texte dans le brouillard. */
.paper.blind #letter { color: transparent; }
.fog {
  position: absolute; left: 0; top: 0; overflow: hidden; pointer-events: none; padding: 28px 30px; box-sizing: border-box;
  font-size: 18px; line-height: 1.75; white-space: pre-wrap; overflow-wrap: break-word; color: var(--text);
}
.fog .f1 { color: transparent; text-shadow: 0 0 5px rgba(220, 212, 255, .75); }
.fog .f2 { color: transparent; text-shadow: 0 0 11px rgba(170, 150, 255, .4); }
.write.sealing .fog { opacity: 0; transition: opacity .3s; }

/* Voix / vidéo */
.rec { min-height: 52vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 28px 20px; text-align: center; transition: opacity .2s; }
.rec video { width: min(560px, 100%); border-radius: 16px; border: 1px solid var(--border-2); background: #000; }
#rec-live { transform: scaleX(-1); box-shadow: 0 0 calc(10px + var(--lvl, 0) * 60px) rgba(95, 232, 240, .45); }
.rec audio { width: min(440px, 100%); }
.rec-orb {
  width: 130px; height: 130px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #c7b3ff, #7c4dff 45%, #2a1660 75%);
  box-shadow: 0 0 calc(30px + var(--lvl, 0) * 90px) rgba(154, 108, 255, .7); transform: scale(calc(1 + var(--lvl, 0) * .35)); transition: transform .08s;
}
.rec[data-state="rec"] .rec-orb { background: radial-gradient(circle at 35% 30%, #ffd1d1, #f87171 45%, #5a1530 75%); box-shadow: 0 0 calc(30px + var(--lvl, 0) * 90px) rgba(248, 113, 113, .7); }
.rec-time { margin: 0; font-family: var(--mono); font-size: 22px; letter-spacing: .06em; }
.rec[data-state="count"] .rec-time { font-size: 54px; color: var(--accent-2); animation: tick .8s infinite; }
.rec[data-state="rec"] .rec-time::before { content: ""; display: inline-block; width: 10px; height: 10px; margin-right: 10px; border-radius: 50%; background: var(--red); vertical-align: middle; animation: tick 1s infinite; }
.rec-hint { margin: 0; font-size: 14px; }
.rec-actions { display: flex; gap: 10px; }
.write.sealing .rec > * { opacity: 0; transition: opacity .3s; }

/* Questions miroir */
.mirror-q { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 16px; background: rgba(17, 14, 36, .5); }
.mirror-q summary { cursor: pointer; font-size: 15px; }
#mirror-list, .mirror-ask { display: grid; gap: 12px; margin-top: 14px; white-space: normal; }
#mirror-list label, .mirror-ask label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
#mirror-list input, .mirror-ask input { padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: rgba(10, 8, 22, .6); outline: none; }
#mirror-list input:focus, .mirror-ask input:focus { border-color: var(--accent); }
.mirror-ask { margin-top: 0; }
.mirror-ask label { font-size: 16px; color: var(--text); }
.mirror-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }

/* Lecture : média, rejeu, comparaison */
.letter-read .media { margin: 0 0 24px; }
.letter-read .media video { display: block; width: 100%; border-radius: 14px; border: 1px solid var(--border-2); background: #000; }
.letter-read .media audio { width: 100%; }
.letter-read .replay-go { margin: 0 0 18px; font-size: 14px; }
.replay-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; white-space: normal; }
.replay-bar .ghost { padding: 4px 12px; font-size: 13px; }
.replay-bar .on { color: var(--text); border-color: var(--accent); }
.replay .caret { display: inline-block; width: 2px; height: 1.15em; margin: 0 -1px; vertical-align: text-bottom; background: var(--accent-2); box-shadow: 0 0 8px var(--accent-2); }
.replay.end .caret { animation: tick 1s infinite; }
@keyframes tick { 50% { opacity: .2; } }
.compare { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--border); white-space: normal; }
.compare h3 { margin: 0 0 16px; font-size: 15px; color: var(--muted); font-weight: 500; }
.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; margin-bottom: 18px; }
.cmp .q { grid-column: 1 / -1; margin: 0; font-size: 14px; color: var(--muted); }
.cmp .then, .cmp .now { padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border); font-size: 16px; line-height: 1.5; }
.cmp .then { background: rgba(154, 108, 255, .08); }
.cmp .now { background: rgba(95, 232, 240, .07); border-color: rgba(95, 232, 240, .25); }
.cmp .then::before, .cmp .now::before { content: attr(data-l); display: block; font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.letter-read .back { margin-top: 32px; }
@media (max-width: 600px) { .cmp { grid-template-columns: 1fr; } }