:root{--navy:#091b2d;--navy2:#112d45;--blue:#2467ee;--pink:#ef3f7f;--teal:#08ad9d;--ink:#102236;--muted:#617184;--bg:#f1f5f9;--line:#dfe7ee}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,'Segoe UI',Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,.btn{cursor:pointer}.site-header{background:#fff;position:sticky;top:0;z-index:10;box-shadow:0 2px 16px #10223616}.nav-shell{max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 20px}.logo{font-weight:900;font-size:25px;letter-spacing:-1.3px;white-space:nowrap;color:var(--navy)}.logo span{color:var(--teal)}.logo small{display:block;font-size:9px;letter-spacing:2px;text-align:center;margin-top:-6px}.site-header nav{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:15px}.site-header nav 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/* Coaching personnalisé — design premium responsive */
.coach-layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin:25px 0 50px}.coach-panel{background:#fff;color:#14233f;border-radius:20px;padding:clamp(18px,3vw,35px);box-shadow:0 10px 36px rgba(15,32,64,.09)}.coach-form{display:grid;gap:15px}.coach-form label{display:grid;gap:6px;font-weight:650}.coach-form select{max-width:100%;width:100%;padding:12px 14px;border:1px solid #c4d1df;border-radius:11px;background:#f8fbff;color:#14233f}.coach-result{background:linear-gradient(165deg,#ebfbf8,#fff 45%,#f4f7ff)}.coach-result li{padding:5px 0}.coach-panel .disclaimer{font-size:.85rem}@media(max-width:780px){.coach-layout{grid-template-columns:1fr}}

/* Profil et journal : grille responsive mobile */
.profile-panel{margin-top:2rem}.profile-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1rem;align-items:end;margin:1.2rem 0}.profile-form label{display:grid;gap:.4rem;font-weight:600}.profile-form input,.profile-form select{width:100%;border:1px solid #c9d5e4;border-radius:12px;padding:.75rem;background:#fff;color:#172337}.profile-form button{min-height:46px}
.exercise-demo{margin:0;padding:8px;background:#f0f6fc;border:1px solid #ccdaea;border-radius:12px;max-width:330px}.exercise-demo svg{width:100%;height:auto;display:block}.exercise-demo figcaption{font-size:12px;color:#25425f}.exercise-demo button{font-size:12px;padding:7px 10px;margin:8px 0 0}.demo-limb{stroke:#274768;stroke-width:10;fill:none;stroke-linecap:round;stroke-linejoin:round;transform-origin:100px 130px}.muscle-highlight{fill:#f25f55;opacity:.63}.demo-squat{animation:squat-motion 2.8s ease-in-out infinite}.demo-push{animation:push-motion 2.8s ease-in-out infinite}.demo-row{animation:row-motion 2.8s ease-in-out infinite}.demo-bridge{animation:bridge-motion 2.8s ease-in-out infinite}.demo-paused .demo-limb{animation-play-state:paused}@keyframes squat-motion{50%{transform:translateY(19px) scaleY(.82)}}@keyframes push-motion{50%{transform:translateY(17px) rotate(3deg)}}@keyframes row-motion{50%{transform:rotate(-10deg) translateY(5px)}}@keyframes bridge-motion{50%{transform:translateY(-18px)}}@media(prefers-reduced-motion:reduce){.demo-limb{animation:none!important}}