/* Fish card AR experience. Colours come from the card (inline custom properties on <body>): --ink --cream --accent --soft. */
@font-face{font-family:'Onest';font-weight:100 900;font-display:swap;src:url(assets/fonts/onest-cyrillic.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Onest';font-weight:100 900;font-display:swap;src:url(assets/fonts/onest-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--ink,#0b2f47);overscroll-behavior:none}
body{font-family:'Onest',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--cream);-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.hidden,[hidden]{display:none!important}
button{font:inherit;color:inherit;border:0;background:none;padding:0;cursor:pointer;touch-action:manipulation}

#desktop-only-message{position:fixed;inset:0;z-index:1000;background:var(--ink);color:var(--cream);display:none;align-items:center;justify-content:center;text-align:center;padding:2em;font-size:1.15rem;line-height:1.5}

/* the overlay sits above the camera; only its controls take touches */
#ui{position:fixed;inset:0;z-index:999;pointer-events:none}
#ui>*{pointer-events:none}
#ui button,#ui .dock>*{pointer-events:auto}

/* ---- splash ---- */
#splash{position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;justify-content:flex-end;pointer-events:auto;background:var(--ink);transition:opacity .45s ease,visibility .45s}
#splash.gone{opacity:0;visibility:hidden;pointer-events:none}
.splash__art{position:absolute;inset:0;background:url(assets/splash.jpg) center 28%/cover no-repeat}
.splash__art::after{content:'';position:absolute;inset:0;background:linear-gradient(to bottom,rgba(11,47,71,0) 30%,rgba(11,47,71,.82) 62%,var(--ink) 88%)}
.splash__panel{position:relative;padding:0 24px calc(28px + env(safe-area-inset-bottom));text-align:center}
.splash__kicker{margin:0 0 6px;font-size:.9rem;font-weight:600;letter-spacing:.04em;color:var(--soft)}
.splash__panel h1{margin:0;font-size:clamp(2.1rem,10vw,2.9rem);line-height:1.05;font-weight:800;letter-spacing:-.01em;text-wrap:balance}
.splash__latin{margin:6px 0 16px;font-size:1rem;font-style:italic;color:var(--soft)}
.splash__how{margin:0 auto 20px;max-width:26ch;font-size:1.05rem;line-height:1.4;text-wrap:pretty}
#start{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;min-width:210px;height:64px;padding:0 34px;border-radius:32px;background:var(--accent);color:#fff;font-size:1.3rem;font-weight:800;letter-spacing:.02em;box-shadow:0 6px 0 rgba(0,0,0,.28),0 10px 24px rgba(0,0,0,.3);transition:transform .15s ease,box-shadow .15s ease,opacity .3s}
#start:active{transform:translateY(3px) scale(.98);box-shadow:0 3px 0 rgba(0,0,0,.28),0 5px 14px rgba(0,0,0,.3)}
#start:disabled{opacity:.9}
#start .spinner{display:none;width:26px;height:26px;border-radius:50%;border:4px solid rgba(255,255,255,.4);border-top-color:#fff;animation:spin .8s linear infinite}
#start:disabled .spinner{display:block}
#start:disabled .start__label{opacity:.85}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---- "point at the card" hint ---- */
.hint{position:absolute;left:0;right:0;bottom:calc(14vh + env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:center;gap:16px;opacity:0;visibility:hidden;transition:opacity .4s}
.hint.show{opacity:1;visibility:visible}
.find__frame{position:relative;width:min(56vw,240px);aspect-ratio:3/4;animation:breathe 2.4s ease-in-out infinite}
.find__frame i{position:absolute;width:34px;height:34px;border:5px solid var(--cream);filter:drop-shadow(0 2px 4px rgba(0,0,0,.5))}
.find__frame i:nth-child(1){left:0;top:0;border-right:0;border-bottom:0;border-radius:14px 0 0 0}
.find__frame i:nth-child(2){right:0;top:0;border-left:0;border-bottom:0;border-radius:0 14px 0 0}
.find__frame i:nth-child(3){left:0;bottom:0;border-right:0;border-top:0;border-radius:0 0 0 14px}
.find__frame i:nth-child(4){right:0;bottom:0;border-left:0;border-top:0;border-radius:0 0 14px 0}
.hint p{margin:0;padding:10px 20px;border-radius:22px;background:rgba(11,47,71,.78);font-size:1.15rem;font-weight:700;text-align:center}
@keyframes breathe{50%{transform:scale(1.05)}}

/* ---- top bar ---- */
.hud{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between;align-items:flex-start;padding:calc(12px + env(safe-area-inset-top)) 14px 0}
.badge{padding:9px 16px;border-radius:20px;background:rgba(11,47,71,.78);font-size:1rem;font-weight:700;display:flex;gap:8px;align-items:center}
.badge svg{color:#ffc857}
.round{pointer-events:auto;width:52px;height:52px;border-radius:50%;background:rgba(11,47,71,.78);color:var(--cream);display:grid;place-items:center;transition:transform .15s}
.round:active{transform:scale(.92)}
.round .cross{display:none}
.round[aria-pressed="true"] .wave{display:none}
.round[aria-pressed="true"] .cross{display:block}

/* ---- bottom: speech bubble and the four topic buttons ---- */
.dock{position:absolute;left:0;right:0;bottom:0;padding:0 12px calc(12px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px}
.caption{pointer-events:none;padding:14px 18px 16px;border-radius:22px;background:rgba(11,47,71,.9);box-shadow:0 8px 24px rgba(0,0,0,.3);animation:rise .3s ease-out both}
.caption__title{margin:0 0 4px;font-size:1.1rem;font-weight:800;color:#ffc857}
.caption__text{margin:0;font-size:1.02rem;line-height:1.38;text-wrap:pretty;max-height:30vh;overflow:auto}
.caption__bar{margin-top:12px;height:5px;border-radius:3px;background:rgba(255,243,212,.2);overflow:hidden}
.caption__bar i{display:block;height:100%;width:0;background:var(--accent);border-radius:3px}
.topics{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.topic{display:flex;align-items:center;gap:10px;min-height:62px;padding:8px 14px 8px 10px;border-radius:20px;background:var(--cream);color:var(--ink);text-align:left;font-size:1.08rem;font-weight:800;line-height:1.1;box-shadow:0 5px 0 rgba(0,0,0,.25),0 8px 16px rgba(0,0,0,.25);transition:transform .12s ease,box-shadow .12s ease,background-color .2s}
.topic:active{transform:translateY(3px);box-shadow:0 2px 0 rgba(0,0,0,.25),0 4px 8px rgba(0,0,0,.25)}
.topic .ico{flex:none;width:42px;height:42px;border-radius:14px;background:var(--accent);color:#fff;display:grid;place-items:center}
.topic[aria-pressed="true"]{background:var(--accent);color:#fff}
.topic[aria-pressed="true"] .ico{background:#fff;color:var(--accent)}
.topic.done:not([aria-pressed="true"]) .ico::after{content:'';position:absolute}
@keyframes rise{from{opacity:0;transform:translateY(12px)}}

.error{position:absolute;left:16px;right:16px;top:30%;padding:18px;border-radius:18px;background:rgba(11,47,71,.95);text-align:center;font-size:1.1rem;line-height:1.4;pointer-events:auto}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (max-height:640px){.splash__how{display:none}.caption__text{max-height:22vh;font-size:.95rem}.topic{min-height:54px;font-size:1rem}}