:root{--bg:#111;--ink:#f8f8f8;--accent:#ffcc00;--surface:#222;--muted:#a9a9a9;--border:#ffffff25;color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
*{box-sizing:border-box}html{width:100%;overflow-x:hidden}body{margin:0;min-height:100vh;background:#0d0d0d;color:var(--ink);overflow-x:hidden}
button,input{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.5;cursor:not-allowed}a{color:inherit;text-decoration:none}
.app-shell{max-width:520px;min-height:100dvh;margin:0 auto;background:radial-gradient(ellipse at 50% 25%,#ffd00012,transparent 58%),#121212;position:relative;overflow:hidden;display:flex;flex-direction:column}
@media(min-width:650px){.app-shell{min-height:0;margin:2vh auto;border:1px solid #414141;border-radius:28px;box-shadow:0 12px 100px #000a}}
.masthead{padding:22px 20px 12px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.wordmark{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:750;letter-spacing:.08em;white-space:nowrap}.wordmark b{letter-spacing:.05em}.wordmark-symbol{color:var(--accent);font-size:24px;line-height:1;filter:drop-shadow(0 0 8px #ffcc0077)}
.version{font-size:9px;letter-spacing:.13em;color:#999;text-align:right}.top-progress{height:3px;background:#ffffff15}.top-progress span{display:block;background:var(--accent);width:22%;height:100%;border-radius:4px}
.welcome{padding:28px 24px 16px;display:flex;flex-direction:column;align-items:stretch;position:relative}
.tiny{font-size:11px;letter-spacing:.17em;text-transform:uppercase;color:var(--accent);font-weight:750}
.welcome h1{font-size:clamp(55px,12vw,75px);letter-spacing:-.07em;line-height:.99;font-weight:460;margin:16px 0}
h1 em,h2 em{font-style:normal;color:var(--accent)}.welcome-lead{font-size:16px;color:#d8d8d8;margin:0}
.art{height:275px;position:relative;display:grid;place-items:center;margin:-1px -24px 2px;isolation:isolate}
.halo{position:absolute;width:min(78vw,315px);aspect-ratio:1;border:1px solid #ffcc0050;border-radius:50%;box-shadow:0 0 0 25px #ffcc0009,0 0 0 63px #ffcc0007;animation:pulse 4s ease-in-out infinite;z-index:-1}
.earbud-shell{position:relative;width:202px;height:274px;filter:drop-shadow(0 26px 25px #0009);animation:float 5s ease-in-out infinite}
.earbud-shell img{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.earbud-base{opacity:1}.earbud-frame{opacity:0;transition:opacity .32s ease}
:root[data-earbud-color="black"] .earbud-frame[data-bud="black"],:root[data-earbud-color="yellow"] .earbud-frame[data-bud="yellow"],:root[data-earbud-color="green"] .earbud-frame[data-bud="green"],:root[data-earbud-color="red"] .earbud-frame[data-bud="red"]{opacity:1}
@keyframes float{50%{transform:translateY(-10px)}}@keyframes pulse{50%{transform:scale(1.06);opacity:.62}}
.color-theme-picker{display:flex;justify-content:center;gap:12px;margin:4px 0 22px}
.color-theme-picker button{width:27px;height:27px;border-radius:50%;border:2px solid #ffffff55;box-shadow:0 0 0 3px transparent}
.color-theme-picker button[aria-pressed="true"]{box-shadow:0 0 0 3px #ffcc0080;border-color:#fff}
.color-theme-picker button[data-earbud-color="black"]{background:#202328}.color-theme-picker button[data-earbud-color="yellow"]{background:#ffcc00}.color-theme-picker button[data-earbud-color="green"]{background:#36c56d}.color-theme-picker button[data-earbud-color="red"]{background:#f04457}
.one-earbud{border:1px solid #ffcc0035;background:#ffcc000b;border-radius:15px;padding:13px 15px;margin:2px 0;color:#cbcbcb;font-size:13px;line-height:1.55}.one-earbud strong{color:#fff}
.choice-section{padding:16px 24px 26px;border-top:1px solid #ffffff16}.choice-section h2{font-size:clamp(40px,10vw,56px);line-height:1.05;letter-spacing:-.065em;margin:13px 0;font-weight:600}
.section-explain{color:#bababa;font-size:13px;line-height:1.65;margin:14px 0 22px}
.trainer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;border:0;margin:0;padding:0}
.visually-hidden{position:absolute!important;clip:rect(0 0 0 0);width:1px;height:1px;overflow:hidden}
.trainer-card{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px 8px 17px;background:#222;border:1px solid #ffffff30;border-radius:17px;cursor:pointer;text-align:center;transition:transform .2s,border-color .2s}
.trainer-card:has(input:checked){border-color:var(--accent);background:#332b17;box-shadow:0 0 0 2px #ffcc0018}
.trainer-card:hover{transform:translateY(-2px)}.trainer-card input{position:absolute;opacity:0;pointer-events:none}.trainer-card:has(input:focus-visible){outline:3px solid #ffcc00;outline-offset:4px}
.trainer-photo{display:block;width:clamp(115px,32vw,156px);height:clamp(115px,32vw,156px);border:3px solid #ffcc0066;border-radius:50%;overflow:hidden;background-color:#4a4a4a;flex-shrink:0}
.trainer-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 25%}
.vika-photo{background-image:url('/media/assets/coaches8.webp');background-size:400% 200%;background-repeat:no-repeat;background-position:33.333% 100%}
.trainer-card strong{font-size:25px;line-height:1}.trainer-card small{font-size:11px;color:var(--accent);font-weight:700}.trainer-description{font-size:11px;color:#bbb}
.coach-copy{background:#ffffff08;border:1px solid #ffffff1d;border-radius:13px;color:#c6c6c6;padding:14px;font-size:12px;line-height:1.6;margin:15px 0 17px;min-height:73px}
.actions{display:grid;gap:9px}.cta{width:100%;min-height:57px;padding:12px 19px;border:0;border-radius:14px;background:var(--accent);color:#121212;font-size:15px;font-weight:850;display:flex;align-items:center;justify-content:space-between;gap:8px}
.cta span{font-size:23px}.cta.secondary{border:1px solid #ffcc00a3;background:#2b281e;color:#ffdd59}
.cta:hover{filter:brightness(1.1)}.availability{font-size:12px;line-height:1.5;color:#aaa;text-align:center;margin:14px 0 0}.availability.error{color:#ffc3b3}
footer{display:flex;justify-content:space-between;gap:10px;border-top:1px solid #ffffff18;color:#777;font-size:9px;letter-spacing:.1em;text-transform:uppercase;padding:16px 24px 22px}
@media(max-width:390px){.welcome{padding:24px 18px}.choice-section{padding:16px 18px}.trainer-photo{width:110px;height:110px}.trainer-card strong{font-size:22px}.trainer-description{font-size:10px}.version{font-size:8px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}}

/* Approved main-screen refinements, 2026-11-01 */
.actions{gap:24px;margin-top:22px}
.availability:empty{display:none}.availability.error{display:block}
.vika-photo{background-image:none;background-color:#555}
.vika-photo img{object-fit:cover;object-position:center 35%}

/* Coach portraits: preserve whole source image, no face cropping. */
.trainer-photo img,.vika-photo img{object-fit:contain!important;object-position:center center!important;transform:none!important}

/* Home-only balanced headshots. Keep source assets untouched; other avatars unchanged. */
.choice-section .trainer-photo{display:flex;align-items:center;justify-content:center}
.choice-section .trainer-photo img{width:100%;height:100%;display:block;object-fit:cover!important;object-position:center center!important}
.choice-section .mark-photo img{transform:scale(1.85)!important;transform-origin:50% 37%!important}
.choice-section .vika-photo img{transform:scale(1.0)!important;transform-origin:center center!important;object-position:50% 38%!important}

/* Earbud color controls ambient page background as well as earbud image. */
:root[data-earbud-color="black"]{--earbud-glow:rgba(112,126,148,.16);--earbud-tint:#101318;--earbud-ring:#7f8fa0}
:root[data-earbud-color="yellow"]{--earbud-glow:rgba(255,204,0,.16);--earbud-tint:#16140e;--earbud-ring:#ffcc00}
:root[data-earbud-color="green"]{--earbud-glow:rgba(36,204,117,.19);--earbud-tint:#0d1913;--earbud-ring:#35ca72}
:root[data-earbud-color="red"]{--earbud-glow:rgba(238,63,85,.18);--earbud-tint:#1b1013;--earbud-ring:#f04457}
body{background:radial-gradient(ellipse at 50% 8%,var(--earbud-glow),transparent 64%),#0c0c0c;transition:background .3s ease}
.app-shell{background:radial-gradient(ellipse at 50% 24%,var(--earbud-glow),transparent 64%),var(--earbud-tint);transition:background .3s ease}
.halo{border-color:var(--earbud-ring);box-shadow:0 0 0 25px var(--earbud-glow),0 0 0 65px color-mix(in srgb,var(--earbud-glow),transparent 40%)}
.color-theme-picker button[aria-pressed="true"]{box-shadow:0 0 0 3px var(--earbud-ring);border-color:#fff}