/* usoapp · páginas públicas (entrar, solicitar acceso). Misma imagen que usonoi.com. */
@font-face{font-family:'Montserrat Variable';font-style:normal;font-display:swap;font-weight:100 900;src:url(fonts/montserrat-latin-wght-normal.woff2) format('woff2-variations')}
@font-face{font-family:'Caveat Variable';font-style:normal;font-display:swap;font-weight:400 700;src:url(fonts/caveat-latin-wght-normal.woff2) format('woff2-variations')}
@font-face{font-family:'Michroma';font-style:normal;font-display:swap;font-weight:400;src:url(fonts/michroma-latin-400-normal.woff2) format('woff2')}

:root{
  --paper:#fff;--ink:#0a1020;--graphite:#566173;--pencil:#8e9aab;--guide:#cdd6e2;--guide-soft:#e8edf3;--wash:#f6f8fb;
  --tec:#16a43a;--error:#c4162a;
  --font-sans:'Montserrat Variable',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  --font-hand:'Caveat Variable','Segoe Print','Bradley Hand',cursive;
  --font-brand:'Michroma','Montserrat Variable',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.6 var(--font-sans);
  background-image:linear-gradient(var(--guide-soft) 1px,transparent 1px),linear-gradient(90deg,var(--guide-soft) 1px,transparent 1px);background-size:44px 44px;background-position:-1px -1px}
a{color:inherit;text-underline-offset:.18em;text-decoration-thickness:1.5px}
a:hover{color:var(--tec)}
:focus-visible{outline:2.5px solid var(--tec);outline-offset:3px;border-radius:6px}

/* Marca: "uso" en tinta y solo el sufijo en color */
.wm{font-family:var(--font-brand);font-weight:400;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;line-height:1}
.wm span{-webkit-text-stroke:.045em currentColor}
.wm__uso{color:var(--ink)}
.wm__app,.wm__tec{color:var(--tec);margin-right:-.04em}
.wm--sm{font-size:.82em}
.wm--xl{font-size:clamp(2.9rem,1.4rem + 5vw,5.4rem)}

.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px clamp(20px,5vw,72px);background:rgba(255,255,255,.92)}
.top__logo{display:block;width:74px;color:var(--ink)}
.top__logo svg{display:block;width:100%;height:auto}
.top__back{font-size:.9rem;font-weight:600;text-decoration:none;display:inline-flex;gap:.45em;align-items:baseline}
.top__back::before{content:'←';font-weight:500}

.page{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:clamp(24px,5vw,64px) clamp(20px,5vw,72px) 56px}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(32px,6vw,96px);align-items:start}

.intro{padding-top:8px}
.intro__mark{margin:0;font-weight:400}
.hand{font:600 var(--hand-size,clamp(1.6rem,1.2rem + 1vw,2.2rem))/1.1 var(--font-hand);color:var(--ink);margin:.25em 0 0;transform:rotate(-2deg);transform-origin:left}
.flight{display:block;width:min(420px,100%);height:auto;margin:22px 0 10px}
.flight__area{fill:rgba(22,164,58,.06);stroke:var(--pencil);stroke-width:1.6;stroke-linejoin:round;stroke-dasharray:3 5}
.flight__path{fill:none;stroke:var(--tec);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;animation:draw 2.6s .2s cubic-bezier(.33,.12,.2,1) forwards}
.flight__drone{fill:#fff;stroke:var(--ink);stroke-width:2;opacity:0;animation:appear .4s 2.6s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes appear{to{opacity:1}}
.intro__text{color:var(--graphite);max-width:46ch;margin:0 0 18px}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:.95rem;font-weight:500}
.checks li{position:relative;padding-left:30px}
.checks li::before{content:'';position:absolute;left:2px;top:.32em;width:16px;height:9px;border-left:2.5px solid var(--tec);border-bottom:2.5px solid var(--tec);transform:rotate(-45deg);border-radius:1px}

.card{background:var(--paper);border:1.5px solid var(--ink);border-radius:22px;padding:clamp(24px,3.4vw,40px);box-shadow:6px 7px 0 var(--guide-soft)}
.card--solo{max-width:560px;margin:4vh auto 0}
.card__title{font-size:clamp(1.6rem,1.2rem + 1.2vw,2.1rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}
.card__title .wm{font-size:.8em;letter-spacing:.03em}
.card__lead{color:var(--graphite);margin:0 0 22px}
.card__help{font-size:.92rem;color:var(--graphite);margin:16px 0 0}
.card__help a{color:var(--ink);font-weight:600}
.card__help--req{padding-top:16px;border-top:1px dashed var(--guide)}

.form{display:grid;gap:6px}
.form label{font-size:.9rem;font-weight:600;margin-top:10px}
.form__row{display:flex;justify-content:space-between;align-items:flex-end;margin-top:10px}
.form__row label{margin:0}
.opt{font-weight:400;color:var(--graphite)}
.form input:not([type=checkbox]),.form textarea{width:100%;min-height:52px;padding:12px 14px;border:1.5px solid var(--pencil);border-radius:12px;background:#fff;color:var(--ink);font:500 1rem/1.4 var(--font-sans);transition:border-color .15s,box-shadow .15s}
.form textarea{min-height:96px;resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--tec);box-shadow:0 0 0 3px rgba(22,164,58,.18)}
.form input[aria-invalid=true]{border-color:var(--error)}
.reveal{background:none;border:0;padding:4px 2px;font:600 .82rem var(--font-sans);color:var(--graphite);cursor:pointer;text-decoration:underline;text-underline-offset:.2em}
.reveal:hover{color:var(--ink)}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:54px;margin-top:20px;padding:.9em 1.6em;border:0;border-radius:999px;background:var(--ink);color:#fff;font:700 1rem/1.2 var(--font-sans);cursor:pointer;width:100%}
.button:hover{background:#232d44}
.button:active{transform:translateY(1px)}
.consent{display:grid!important;grid-template-columns:22px 1fr;gap:10px;align-items:start;font-weight:500!important;font-size:.9rem!important;margin-top:16px!important}
.consent input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--tec)}
.legal{font-size:.8rem;line-height:1.5;color:var(--graphite);margin:6px 0 0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.msg{border-radius:12px;padding:12px 14px;font-size:.95rem;font-weight:500;margin:0 0 14px}
.msg--error{background:#fdecee;color:var(--error);border:1px solid #f4c1c7}
.msg--ok{background:#e9f7ed;color:#0e7a2b;border:1px solid #bfe6c9}

.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;padding:20px clamp(20px,5vw,72px) 28px;font-size:.8rem;color:var(--graphite);border-top:1px solid var(--guide-soft);background:#fff}

@media (max-width:860px){
  .split{grid-template-columns:minmax(0,1fr)}
  .card{order:-1}
  .intro{padding-top:0}
  .flight{display:none}
}
@media (prefers-reduced-motion:reduce){
  .flight__path{animation:none;stroke-dashoffset:0}
  .flight__drone{animation:none;opacity:1}
}