:root{
  --paper:#ECEAE5; --paper-2:#E6E4DE; --card:#FFFFFF; --soft:#E2E0D9;
  --ink:#24272C; --ink-2:#40454C; --ink-3:#71767E; --line:#D8D5CD;
  --steel:#4E7382; --steel-d:#3C5B68; --mauve:#B0A6BC; --mauve-d:#8B7FA0;
  --plum:#8A6E9E; --inh:#4E7382; --exh:#8A6E9E;
  --shadow:0 1px 2px rgba(30,28,24,.04),0 10px 30px -12px rgba(30,28,24,.14);
  --shadow-lg:0 30px 60px -24px rgba(30,28,24,.28);
  --r:20px; --maxw:1120px;
  --disp:'Jost',system-ui,sans-serif; --body:'Mulish',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{scroll-margin-top:74px}

/* progress */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:60;background:transparent}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--steel),var(--mauve-d))}

/* topbar */
.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:12px 24px;background:rgba(236,234,229,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--ink);color:var(--paper);
  font-family:var(--disp);font-weight:500;display:grid;place-items:center;font-size:15px;letter-spacing:.5px}
.brand-word{font-family:var(--disp);font-weight:400;letter-spacing:.32em;text-transform:uppercase;
  font-size:12px;color:var(--ink-2)}
.nav{display:flex;gap:4px}
.nav a{font-size:14px;font-weight:600;color:var(--ink-3);padding:8px 13px;border-radius:999px;transition:.2s}
.nav a:hover{color:var(--ink);background:var(--paper-2)}
.nav a.active{color:var(--steel-d);background:#fff;box-shadow:var(--shadow)}
.menu-btn{display:none;font-family:var(--body);font-weight:700;font-size:13px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 16px;cursor:pointer}
.drawer{display:none;position:sticky;top:59px;z-index:49;background:rgba(236,234,229,.96);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:8px 16px;flex-wrap:wrap;gap:6px}
.drawer a{font-weight:600;font-size:14px;color:var(--ink-2);padding:9px 14px;border-radius:999px;background:#fff;border:1px solid var(--line)}

/* hero */
.hero{padding:clamp(56px,11vw,120px) 0 clamp(40px,7vw,72px);position:relative;overflow:hidden}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;z-index:0}
.hero:before{width:520px;height:520px;background:radial-gradient(circle,rgba(176,166,188,.55),transparent 65%);top:-160px;right:-120px}
.hero:after{width:460px;height:460px;background:radial-gradient(circle,rgba(78,115,130,.28),transparent 65%);bottom:-200px;left:-140px}
.hero-in{position:relative;z-index:1}
.hero-kicker{font-family:var(--disp);letter-spacing:.34em;text-transform:uppercase;font-size:13px;
  font-weight:500;color:var(--steel-d);margin-bottom:22px}
.hero-name{font-family:var(--disp);font-weight:300;line-height:.92;margin:0;
  font-size:clamp(58px,13vw,150px);letter-spacing:-.01em;color:var(--ink)}
.hero-name span{display:block;font-weight:500}
.hero-sub{max-width:620px;font-size:clamp(18px,2.4vw,22px);color:var(--ink-2);margin:28px 0 0;line-height:1.5}
.hero-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:30px;
  font-family:var(--disp);letter-spacing:.06em;text-transform:uppercase;font-size:13px;font-weight:500;color:var(--ink-3)}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--mauve)}
.hero-cta{display:inline-flex;align-items:center;gap:10px;margin-top:40px;background:var(--ink);color:var(--paper);
  font-weight:600;font-size:15px;padding:15px 26px;border-radius:999px;transition:.25s;box-shadow:var(--shadow)}
.hero-cta em{font-style:normal;transition:.25s}
.hero-cta:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.hero-cta:hover em{transform:translateY(3px)}

/* section scaffolding */
.sec{padding:clamp(48px,8vw,96px) 0}
.notes{background:linear-gradient(180deg,var(--paper),#EFEDE8)}
.plan{background:#EAE8E2}
.sec-head{margin-bottom:40px;max-width:760px}
.kicker{font-family:var(--disp);letter-spacing:.28em;text-transform:uppercase;font-size:12.5px;
  font-weight:500;color:var(--steel-d);margin-bottom:14px}
.sec-title{font-family:var(--disp);font-weight:300;font-size:clamp(30px,5vw,52px);line-height:1.06;margin:0;letter-spacing:-.01em}
.block-title{font-family:var(--disp);font-weight:500;font-size:clamp(19px,2.4vw,24px);letter-spacing:.02em;
  margin:52px 0 22px;color:var(--ink);display:flex;align-items:center;gap:14px}
.block-title:before{content:"";width:26px;height:2px;background:var(--mauve-d);border-radius:2px}

/* cards */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.gap-top{margin-top:20px}
.stack{display:flex;flex-direction:column;gap:20px}
.card{background:var(--card);border-radius:var(--r);padding:30px 30px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.6)}
.card.soft{background:var(--soft);box-shadow:none;border:1px solid var(--line)}
.card.accent-card{background:linear-gradient(155deg,#fff, #F4F1F5);border:1px solid #ECE6EE}
.lead{font-size:19px;color:var(--ink);line-height:1.55}
.card p{margin:.35em 0 0}
.card p:first-of-type{margin-top:.1em}

.lbl{display:inline-block;font-family:var(--disp);letter-spacing:.2em;text-transform:uppercase;
  font-size:12px;font-weight:600;margin-bottom:12px}
.lbl-steel{color:var(--steel-d)}
.lbl-mauve{color:var(--mauve-d)}
.lbl-tec{color:var(--steel-d)}
.lbl-resp{color:var(--mauve-d)}

.ticks{list-style:none;margin:6px 0 0;padding:0}
.ticks li{position:relative;padding-left:26px;margin:13px 0;color:var(--ink-2);font-size:15.5px;line-height:1.55}
.ticks li:before{content:"";position:absolute;left:2px;top:9px;width:9px;height:9px;border-radius:50%;
  border:2px solid var(--steel);}
.ticks.todo li:before{border-color:var(--mauve-d)}
.ticks strong{color:var(--ink)}

/* lo que trabajamos */
.trab-list{display:grid;gap:16px}
.trab{display:flex;gap:20px;background:var(--card);border-radius:var(--r);padding:26px 28px;box-shadow:var(--shadow);align-items:flex-start}
.trab-n{flex:none;width:44px;height:44px;border-radius:12px;background:var(--paper);color:var(--steel-d);
  font-family:var(--disp);font-weight:500;font-size:22px;display:grid;place-items:center}
.trab h3{font-family:var(--disp);font-weight:500;font-size:20px;margin:2px 0 6px;letter-spacing:.01em}
.trab p{margin:0;color:var(--ink-2);font-size:15.5px}

.comu{margin-top:26px;background:var(--ink);color:#EDEBE6;border-radius:var(--r);padding:30px 32px}
.comu .lbl{color:var(--mauve)}
.comu p{margin:0;font-size:17px;color:#DEDBD3}
.comu strong{color:#fff}

/* breathing spans */
.inh{color:var(--inh);font-weight:700}
.exh{color:var(--exh);font-weight:700}

/* index cards */
.idx-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.idx{background:var(--card);border-radius:var(--r);padding:26px 24px 24px;box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.6);display:flex;flex-direction:column;gap:8px;transition:.28s;position:relative;overflow:hidden}
.idx:after{content:"→";position:absolute;right:22px;top:24px;color:var(--mauve-d);font-size:18px;opacity:0;transform:translateX(-6px);transition:.28s}
.idx:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.idx:hover:after{opacity:1;transform:translateX(0)}
.idx-n{font-family:var(--disp);font-weight:400;font-size:15px;color:var(--mauve-d);letter-spacing:.1em}
.idx-t{font-family:var(--disp);font-weight:500;font-size:22px;letter-spacing:.01em}
.idx-d{color:var(--ink-3);font-size:14.5px;line-height:1.5}
.legend{display:flex;gap:26px;flex-wrap:wrap;margin-top:26px;justify-content:center;
  font-size:14px;color:var(--ink-2)}
.legend .lg{display:inline-flex;align-items:center;gap:9px}
.dot{width:11px;height:11px;border-radius:50%}
.dot.inh{background:var(--inh)} .dot.exh{background:var(--exh)}

/* plan day overview */
.plan-days{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;align-items:start}
.plan-day{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;border:1px solid rgba(255,255,255,.6)}
.plan-day-h{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:22px 24px 16px}
.pd-label{font-family:var(--disp);font-weight:500;font-size:24px;display:flex;flex-direction:column;line-height:1.05}
.pd-label em{font-style:normal;font-weight:400;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-top:5px}
.pd-go{font-size:13px;font-weight:700;color:var(--steel-d);white-space:nowrap;transition:.2s}
.plan-day:hover .pd-go{transform:translateX(3px)}
.pd-warm{margin:0 24px;padding:9px 0 4px;font-size:13px;color:var(--mauve-d);font-weight:600;border-top:1px solid var(--line)}
.pd-list{list-style:none;margin:6px 0 8px;padding:8px 24px 22px;counter-reset:x}
.pd-list li{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:baseline;padding:9px 0;border-bottom:1px dashed var(--line)}
.pd-list li:last-child{border-bottom:0}
.pd-n{font-family:var(--disp);color:var(--mauve-d);font-weight:500;font-size:14px;min-width:16px}
.pd-x{color:var(--ink);font-size:14.5px;line-height:1.4}
.pd-d{grid-column:2;color:var(--ink-3);font-size:12.5px;font-weight:600;letter-spacing:.02em}

/* day sections (exercises) */
.day{padding:clamp(54px,8vw,100px) 0}
#dia1{background:var(--paper)} #dia2{background:#EAE8E2} #dia3{background:var(--paper)}
.day-head{margin-bottom:40px}
.day-kicker{font-family:var(--disp);letter-spacing:.28em;text-transform:uppercase;font-size:12.5px;font-weight:500;color:var(--steel-d);margin-bottom:12px}
.day-title{font-family:var(--disp);font-weight:300;font-size:clamp(44px,9vw,96px);line-height:.94;margin:0;display:flex;align-items:baseline;flex-wrap:wrap;gap:18px;letter-spacing:-.01em}
.day-kind{font-size:.32em;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2)}
.opt{font-family:var(--body);font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  color:var(--mauve-d);background:#fff;border:1px solid #E7E1EA;padding:5px 12px;border-radius:999px;align-self:center}
.day-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.chip{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 18px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow)}
.chip.warm{border-color:#E7E1EA}
.chip-k{font-family:var(--disp);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--mauve-d);font-weight:600}
.chip-v{font-size:14.5px;font-weight:600;color:var(--ink)}

.ex-list{display:flex;flex-direction:column;gap:22px}
.ex{display:grid;grid-template-columns:1.05fr 1fr;gap:0;background:var(--card);border-radius:24px;
  overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.6);transition:.3s}
.ex:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.ex-body{padding:32px 34px;order:2}
.ex-media{order:1;background:linear-gradient(160deg,#F6F5F2,#EDEBE6);display:flex;align-items:center;justify-content:center;padding:26px;border-right:1px solid var(--line)}
.ex-imgbtn{border:0;background:#fff;border-radius:16px;padding:14px;cursor:zoom-in;width:100%;box-shadow:0 6px 20px -12px rgba(0,0,0,.3);transition:.3s;position:relative}
.ex-imgbtn:after{content:"⤢";position:absolute;right:12px;bottom:10px;font-size:15px;color:var(--ink-3);opacity:0;transition:.25s}
.ex-imgbtn:hover{transform:scale(1.015)}
.ex-imgbtn:hover:after{opacity:.7}
.ex-imgbtn img{border-radius:8px}
.ex-top{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.ex-num{font-family:var(--disp);font-weight:400;font-size:30px;color:var(--mauve-d);line-height:1;letter-spacing:.04em}
.dose{display:inline-flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:5px 6px 5px 13px}
.dose-main{font-family:var(--disp);font-weight:600;font-size:15px;letter-spacing:.03em;color:var(--steel-d)}
.dose-note{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3);background:#fff;border-radius:999px;padding:3px 9px}
.ex-name{font-family:var(--disp);font-weight:500;font-size:clamp(21px,2.6vw,27px);line-height:1.12;
  margin:6px 0 14px;letter-spacing:.005em;text-transform:uppercase}
.tip{display:flex;gap:10px;align-items:flex-start;background:#F5F1F6;border:1px solid #EBE3EE;border-radius:12px;
  padding:11px 14px;margin:0 0 16px;font-size:14px;color:var(--mauve-d);font-weight:600}
.tip-i{flex:none;width:19px;height:19px;border-radius:50%;background:var(--mauve-d);color:#fff;font-style:italic;
  font-family:var(--disp);font-size:12px;display:grid;place-items:center;margin-top:1px}
.ex-block{margin-top:16px}
.ex-block .lbl{margin-bottom:7px}
.ex-block p{margin:0;color:var(--ink-2);font-size:15.5px;line-height:1.6}

/* footer */
.foot{background:var(--ink);color:#CFCCC4;padding:70px 0 60px;text-align:center}
.foot-mark{width:52px;height:52px;border-radius:14px;background:#fff;color:var(--ink);font-family:var(--disp);
  font-weight:500;font-size:22px;display:grid;place-items:center;margin:0 auto 22px;letter-spacing:.5px}
.foot-name{font-family:var(--disp);font-weight:400;font-size:28px;color:#fff;margin:0}
.foot-role{margin:4px 0 0;font-size:14px;letter-spacing:.04em}
.foot-word{font-family:var(--disp);letter-spacing:.34em;text-transform:uppercase;font-size:12px;color:var(--mauve);margin:20px 0 0}
.foot-note{max-width:440px;margin:22px auto 0;font-size:13px;color:#9C988F;line-height:1.6}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:80;background:rgba(28,26,22,.86);backdrop-filter:blur(6px);
  display:none;align-items:center;justify-content:center;padding:5vw}
.lightbox.on{display:flex}
.lightbox img{max-width:min(1000px,94vw);max-height:88vh;background:#fff;border-radius:16px;padding:18px}
.lb-close{position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:50%;border:0;background:#fff;
  color:var(--ink);font-size:26px;line-height:1;cursor:pointer}

/* to top */
.totop{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:50%;border:0;
  background:var(--ink);color:var(--paper);font-size:20px;cursor:pointer;box-shadow:var(--shadow-lg);
  opacity:0;pointer-events:none;transform:translateY(10px);transition:.3s;z-index:40}
.totop.show{opacity:1;pointer-events:auto;transform:none}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

@media (max-width:900px){
  .nav{display:none} .menu-btn{display:block} .drawer.open{display:flex}
  .grid2{grid-template-columns:1fr} .idx-grid{grid-template-columns:1fr}
  .plan-days{grid-template-columns:1fr}
  .ex{grid-template-columns:1fr}
  .ex-media{order:1;border-right:0;border-bottom:1px solid var(--line)}
  .ex-body{order:2;padding:26px 24px}
  .brand-word{display:none}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .card{padding:24px 22px}
  .hero-meta{font-size:12px;gap:10px}
  .day-title{gap:10px}
  .trab{flex-direction:column;gap:12px}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .ex:hover,.idx:hover{transform:none}
}