:root{--navy:#083A67;--teal:#0EA6A3;--coral:#FF5739;--paper:#fff;--ink:#102833;--muted:#60737b;--white:#fff;--radius:24px;--shadow:0 24px 70px rgba(7,54,83,.12)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#fff}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.5}
a{color:inherit}
.site-header{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:auto;padding:16px 24px;background:rgba(255,255,255,.94);backdrop-filter:blur(18px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:1.25rem;font-weight:800;color:var(--navy)}
.brand img{border-radius:14px}
.brand strong,h1 span{color:var(--coral)}
nav{display:flex;align-items:center;gap:26px}
nav a{text-decoration:none;font-weight:650}
.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:999px;background:var(--coral);color:var(--white);text-decoration:none;font-weight:850;box-shadow:0 12px 28px rgba(255,96,68,.24)}
.button-small{padding:10px 17px}
.hero{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:20px;min-height:680px;max-width:1180px;margin:auto;padding:50px 24px 80px}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;font-weight:900;color:var(--teal)}
h1{margin:.2em 0;font-size:clamp(3.1rem,7vw,6.7rem);line-height:.88;letter-spacing:-.07em;color:var(--navy)}
.lead{max-width:650px;font-size:clamp(1.05rem,2vw,1.35rem);color:var(--muted)}
.actions{display:flex;align-items:center;gap:22px;margin-top:30px}
.text-link{font-weight:800;text-decoration-thickness:2px;text-underline-offset:5px}
.fine-print{max-width:540px;margin-top:24px;color:var(--muted);font-size:.88rem}
.hero-mark{display:grid;place-items:center}
.hero-mark img{width:min(100%,620px);height:auto;border-radius:34px;box-shadow:var(--shadow)}
.proof{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;max-width:1120px;margin:0 auto 100px;overflow:hidden;border-radius:var(--radius);background:#dce5e2;box-shadow:var(--shadow)}
.proof article{display:flex;flex-direction:column;padding:28px;background:#fff}
.proof strong{font-size:1.6rem;color:var(--navy)}
.proof span,.steps p{color:var(--muted)}
.section{max-width:1120px;margin:0 auto;padding:90px 24px}
.section h2{max-width:750px;margin:.2em 0 1em;font-size:clamp(2.2rem,5vw,4.5rem);line-height:1;letter-spacing:-.05em;color:var(--navy)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.steps article{padding:28px;border:1px solid #dce5e2;border-radius:var(--radius);background:#fff}
.steps b{font-size:.9rem;color:var(--coral)}
.steps h3{font-size:1.25rem;color:var(--navy)}
.privacy{display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:60px;margin-bottom:70px;border-radius:36px;background:var(--navy);color:#fff}
.privacy h2{color:#fff}
.privacy>p{font-size:1.14rem;color:#c8dbdf}
footer{display:flex;justify-content:space-between;max-width:1120px;margin:auto;padding:34px 24px 50px;border-top:1px solid #dce5e2;color:var(--muted)}
@media(max-width:760px){.site-header{padding:12px 16px}
.site-header nav>a:not(.button){display:none}
.hero{grid-template-columns:1fr;padding:34px 18px 55px}
.hero-copy{order:2}
.hero-mark{order:1}
.hero-mark img{max-height:330px;width:auto}
.proof,.steps,.privacy{grid-template-columns:1fr}
.proof{margin:0 16px 55px}
.section{padding:60px 18px}
.privacy{margin-inline:14px;gap:12px}
.actions{align-items:flex-start;flex-direction:column}
footer{flex-direction:column;gap:8px}
}

.access-shell{min-height:calc(100vh - 90px);display:grid;place-items:center;padding:24px}
.access-card{width:min(100%,620px);padding:clamp(28px,7vw,64px);border-radius:36px;background:#fff;box-shadow:var(--shadow)}
.access-card h1{font-size:clamp(2.7rem,8vw,5rem)}
.access-card p:not(.eyebrow){margin-bottom:28px;color:var(--muted);font-size:1.1rem}

/* Aplicación autenticada */
.app-shell{max-width:1180px;margin:auto;padding:42px 24px 90px;min-height:calc(100vh - 82px)}
.auth-card,.wide-card{width:min(100%,620px);margin:5vh auto;padding:clamp(28px,6vw,58px);border:1px solid #dce5e2;border-radius:36px;background:#fff;box-shadow:var(--shadow)}
.wide-card{width:min(100%,900px)}
.auth-card h1,.wide-card h1,.page-head h1,.participant-hero h1{font-size:clamp(2.4rem,7vw,5rem)}
.form-stack,.form-grid{display:grid;gap:18px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.span-all{grid-column:1/-1}
label{display:grid;gap:7px;color:var(--navy);font-weight:750}input,select,textarea{width:100%;padding:13px 14px;border:1px solid #bfd0d2;border-radius:12px;background:#fff;color:var(--ink);font:inherit}textarea{resize:vertical}
fieldset{border:0}.consent-box{grid-column:1/-1;display:grid;gap:12px;margin:5px 0;padding:20px;border:1px solid #dce5e2;border-radius:18px}.check{display:flex;align-items:flex-start;gap:10px;color:var(--ink);font-weight:500}.check input{width:20px;margin-top:3px}
.form-error,.flash{padding:13px 16px;border-radius:14px}.form-error,.flash-error{background:#fff0ed;color:#a62b19}.flash{position:relative;z-index:9;max-width:900px;margin:12px auto}.flash-success{background:#e6f7f4;color:#075b59}
.help-text,.empty,small{color:var(--muted)}.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}.page-head h1{margin:.1em 0}.page-head p{margin:0}.head-actions,.action-row{display:flex;gap:10px;flex-wrap:wrap}
.secondary{background:var(--navy)}.danger{background:#a62b19}.whatsapp{background:#168b53}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0 28px}.metric-grid article{display:flex;flex-direction:column;padding:22px;border:1px solid #dce5e2;border-radius:20px;background:#fff}.metric-grid strong{font-size:2rem;color:var(--navy)}.metric-grid span{color:var(--muted)}
.panel{padding:24px;border:1px solid #dce5e2;border-radius:24px;background:#fff;box-shadow:0 10px 30px rgba(7,54,83,.06)}.panel+.panel{margin-top:20px}.panel h2{margin-top:0;color:var(--navy)}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:20px}.two-column{display:grid;grid-template-columns:1fr 1fr;gap:20px}.two-column>.panel{margin:0}
.card-grid,.week-editor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.cohort-card,.list-card,.moderation-card{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid #dce5e2;border-radius:17px;background:#fff}.list-card+.list-card,.moderation-card+.moderation-card{margin-top:10px}.status{align-self:flex-start;padding:4px 9px;border-radius:99px;background:#e5eeee;font-size:.75rem;text-transform:uppercase}.status-active,.status-vigente{background:#dff6ed;color:#126945}.status-used,.status-usada{background:#e7ebf1}.status-vencida{background:#fff0ed;color:#a62b19}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:13px 10px;border-bottom:1px solid #e3ebea;text-align:left;white-space:nowrap}td small{display:block}.invite-result{display:grid;gap:10px;margin-top:20px;padding:18px;border-radius:18px;background:#f0f8f7}.inline-form{max-width:360px;margin-bottom:20px}.week-editor-grid{grid-template-columns:repeat(2,1fr)}
.participant-hero{padding:30px;border-radius:28px;background:linear-gradient(135deg,#eef9f7,#fff4ef)}.participant-hero h1{margin:.15em 0}.progress-track{height:10px;margin-top:22px;overflow:hidden;border-radius:99px;background:#d7e6e3}.progress-track span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--coral))}.app-tabs{display:flex;gap:8px;overflow:auto;margin:18px 0 24px;padding-bottom:4px}.app-tabs a{padding:10px 14px;border-radius:99px;text-decoration:none;white-space:nowrap;background:#eef3f2;font-weight:750}.app-tabs a.active{background:var(--navy);color:#fff}.priority-card{background:var(--navy);color:#fff}.priority-card h2{color:#fff}
.week-list{display:grid;gap:18px}.week-card.current{border:2px solid var(--teal)}.week-card.locked{opacity:.55}.compact{margin-top:18px}.measurement-card{display:grid;grid-template-columns:1fr auto;gap:4px;padding:18px;border-radius:18px;background:#f3f8f7}.measurement-card+.measurement-card{margin-top:12px}.measurement-card strong{grid-row:1/3;grid-column:2;font-size:2rem;color:var(--navy)}.measurement-card p{grid-column:1/-1}.activity-timeline{display:flex;gap:8px;overflow:auto;padding:6px 0}.activity-timeline span{min-width:110px;padding:12px;border-radius:14px;background:#edf7f5;color:var(--navy)}.activity-timeline b{display:block;font-size:.75rem}.consent-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid #e3ebea}.vo2-comparison{display:flex;gap:14px}.vo2-comparison div{flex:1;padding:20px;border-radius:18px;background:#f0f8f7}.vo2-comparison strong{display:block;font-size:2.4rem;color:var(--navy)}
.badge-public{width:min(92vw,700px);margin:4vh auto;padding:48px;text-align:center;border:8px solid var(--navy);border-radius:38px;background:#fff;box-shadow:var(--shadow)}.badge-public img{width:180px;border-radius:22px}.badge-public h1{font-size:clamp(3rem,10vw,6rem)}.badge-public h2{font-size:2rem;color:var(--coral)}.badge-public>strong,.badge-public>small{display:block;margin-top:18px}.badge-public>strong{font-size:1.6rem;color:var(--teal)}
.install-modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px;background:rgba(5,28,48,.7);backdrop-filter:blur(8px)}.install-modal[hidden]{display:none}.install-card{position:relative;width:min(100%,440px);padding:32px;text-align:center;border-radius:28px;background:#fff;box-shadow:0 30px 90px rgba(5,28,48,.35)}.install-card img{border-radius:20px}.install-card h2{margin:.2em 0;font-size:clamp(2rem,7vw,3rem);line-height:1;color:var(--navy)}.install-card>p:not(.eyebrow){margin:0 auto 24px;color:var(--muted)}.install-card .button{width:100%;border:0;cursor:pointer;font:inherit}.install-close{position:absolute;top:14px;right:16px;width:42px;height:42px;border:0;border-radius:50%;background:#edf3f2;color:var(--navy);font-size:1.8rem;line-height:1;cursor:pointer}.install-later{margin:14px auto 8px;border:0;background:transparent;color:var(--navy);font:inherit;font-weight:800;cursor:pointer}.install-card small{display:block}.install-open{overflow:hidden}
@media(max-width:760px){.app-shell{padding:24px 14px 70px}.account-nav span{display:none}.page-head{align-items:flex-start;flex-direction:column}.metric-grid{grid-template-columns:repeat(2,1fr)}.two-column,.form-grid,.card-grid,.week-editor-grid{grid-template-columns:1fr}.span-all,.consent-box{grid-column:1}.badge-public{padding:28px 18px}.panel{padding:18px}}