/* Mi Ruta B · Diseño profesional · octubre 2026
   Capa de presentación: la lógica de estudio, las cuentas y las preguntas originales permanecen intactas. */
:root{--blue:#315dd8;--navy:#162640;--muted:#687890;--bg:#f7f9fd;--soft:#eef3fc;--line:#e3e9f1;--white:#fff;--glass-bg:rgba(255,255,255,.92);--glass-border:rgba(220,230,245,.88);--glass-shadow:0 10px 35px rgba(21,39,78,.045);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,Roboto,Arial,sans-serif;font-size:15px;color:var(--navy);background:#f3f6fa}
html,body{width:100%;overflow-x:clip}body{background:#f3f6fa;font-feature-settings:'ss01' on;-webkit-font-smoothing:antialiased}
.icon-svg{display:block;width:20px;height:20px;flex-shrink:0}.icon-svg *{vector-effect:non-scaling-stroke}
.app-shell{width:100%;max-width:none;margin:0;min-height:100dvh;background:var(--bg);border:0;border-radius:0;overflow:visible;box-shadow:none}
.app-shell:before{display:none}
.workspace{min-height:100dvh}
.page{position:relative;max-width:none;width:100%;margin:0;padding:calc(env(safe-area-inset-top) + 23px) clamp(16px,5vw,28px) calc(env(safe-area-inset-bottom) + 116px);min-height:100dvh;background:var(--bg)}
.page-content{width:100%;max-width:1120px;margin-inline:auto;min-width:0}
.nav-column{position:fixed;z-index:51;bottom:0;left:0;right:0;pointer-events:none;max-width:100%}
.nav-column .bottom-nav{pointer-events:auto}
.side-identity,.side-label,.side-foot{display:none}
.top{width:100%;max-width:1120px;margin:0 auto 31px;padding:0;align-items:center}
.brand{gap:11px}.brand .logo{width:41px;height:41px;border-radius:13px;background:#e8efff;box-shadow:none;color:#2858cb;border:1px solid #d9e6ff}
.logo .icon-svg{width:23px;height:23px}.brand strong{font-size:16px;font-weight:780;letter-spacing:-.4px}.brand small{font-size:11px;letter-spacing:.05px}
.round-btn{width:41px;height:41px;border:1px solid var(--line);border-radius:13px;background:#fff;box-shadow:0 2px 8px rgba(25,43,78,.035);display:grid;place-items:center}.round-btn .icon-svg{width:19px;height:19px}
.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:800;color:#456cbe}
.heading{font-size:clamp(27px,3vw,36px);font-weight:790;letter-spacing:-1.15px;line-height:1.13;margin:8px 0 9px}
.subhead{font-size:14px;line-height:1.6;color:var(--muted);margin-bottom:27px}
.section-head{margin:33px 0 15px;align-items:baseline}.section-head h2{font-size:18px;letter-spacing:-.55px;font-weight:770}.section-head small{font-size:12px}
.hero{isolation:isolate;position:relative;border:1px solid #3159b2;border-radius:20px;background:linear-gradient(110deg,#183d86 0%,#315fbb 70%,#4679d1 100%);padding:30px;color:#fff;box-shadow:0 12px 30px rgba(26,62,125,.13);overflow:hidden}
.hero:before{content:'';position:absolute;z-index:-1;inset:auto -115px -180px auto;width:450px;height:450px;border-radius:50%;border:1px solid rgba(255,255,255,.19);box-shadow:0 0 0 55px rgba(255,255,255,.045),0 0 0 110px rgba(255,255,255,.025)}
.hero:after{content:none}
.hero>div{position:relative;z-index:2}
.hero-label{font-size:10px;font-weight:760;letter-spacing:1.5px;color:#c6d8ff}
.hero h2{font-size:clamp(25px,3vw,33px);font-weight:770;letter-spacing:-1.1px;line-height:1.16;max-width:530px;margin:12px 0 11px}
.hero p{font-size:14px;line-height:1.6;color:#e4eaff;opacity:1;max-width:490px;margin:0 0 22px}
.hero-art{position:absolute;right:9%;top:50%;transform:translateY(-50%) rotate(-10deg);opacity:.09;pointer-events:none;z-index:1}.hero-art .icon-svg{width:184px;height:184px;stroke-width:.9}
.whitebtn,.hero-secondary{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:45px;border-radius:11px;font-size:13px;font-weight:760;padding:11px 16px;vertical-align:middle;margin-right:9px;margin-top:5px}
.whitebtn{color:#204b9c;background:#fff;border:1px solid #fff;box-shadow:0 4px 12px #112d6929}
.whitebtn .icon-svg,.hero-secondary .icon-svg{width:17px;height:17px}.hero-secondary{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28)}
.hero-after{display:flex;justify-content:flex-end;margin-top:10px}.hero-after .link-btn{display:flex;align-items:center;gap:7px}.link-btn{color:#315dc2;font-size:12px;font-weight:740}.link-btn .icon-svg{width:14px;height:14px}
.stat-grid{gap:13px;margin-top:15px}.stat{background:var(--glass-bg);border:1px solid var(--line);border-radius:16px;padding:19px;box-shadow:0 2px 16px rgba(24,46,90,.025);backdrop-filter:blur(8px);min-width:0}.stat:before{display:none}.stat strong{font-size:29px;font-weight:780;line-height:1.1;letter-spacing:-.8px;margin:8px 0 6px}.stat small{font-size:12px;line-height:1.4;color:#667791}.stat .symbol{color:#3761b6;margin-bottom:4px}.stat .symbol .icon-svg{width:18px;height:18px}
.tile-grid{gap:13px}.tile-grid .tile{display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:13px;text-align:left;min-height:114px;width:100%;border:1px solid var(--line);border-radius:16px;padding:18px;background:rgba(255,255,255,.93);box-shadow:0 4px 15px rgba(30,48,78,.025);transition:transform .16s,border-color .16s,box-shadow .16s;cursor:pointer}
.tile:before{display:none}.tile:hover{transform:translateY(-2px);border-color:#bfcfec;box-shadow:0 8px 28px #203f7716}
.tile .ico{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;background:#ecf2ff;border:1px solid #e1e9ff;color:#2d58b7;border-radius:13px;margin:0}.tile .ico .icon-svg{width:21px;height:21px}
.tile-copy{display:flex;flex-direction:column;gap:5px;align-items:flex-start;min-width:0;flex:1}.tile-copy strong{color:var(--navy);font-size:14px;font-weight:750;letter-spacing:-.24px}.tile-copy span{color:var(--muted);font-size:11px;line-height:1.45;overflow-wrap:break-word;text-align:left!important;margin:0!important}
.tile .tile-arrow{margin:0;display:grid;place-items:center;color:#9caac3;flex:0 0 auto}.tile .tile-arrow .icon-svg{width:17px;height:17px}
.card,.form-card,.review-card{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:17px;box-shadow:0 3px 20px rgba(24,46,90,.025)}
.card:before,.form-card:before,.review-card:before{display:none}
.card{padding:22px}.form-card{padding:22px}.review-card{padding:19px}
.panel-head strong{font-size:13px}.bar{height:7px;background:#ecf0f8;margin:13px 0 12px}.bar>b{background:#4676d4}
.small-note{font-size:12px;line-height:1.65;color:#72809a}
.callout{border:1px solid #dae5f8;color:#516b95;background:#eef4ff;border-radius:13px;padding:14px 16px;font-size:12px;line-height:1.65}.status-note{background:#f0f4fa;color:#526987;border-color:#e3e9f2}
.btn{border-radius:12px;min-height:48px;background:#315dd1;font-size:13px;font-weight:740;box-shadow:none}.btn:hover:not(:disabled){background:#244daf}.btn.ghost{color:var(--navy);border:1px solid #d7e0ec;background:#fff}.btn.ghost:hover:not(:disabled){background:#f3f7fd}.btn.soft{background:#eaf0fc;color:#325ebd}
.form-control{border-radius:11px;border:1px solid #dce4ef;background:#fbfcff;min-height:44px}.chip{border-radius:10px}.chip.selected{background:#e9f0ff;border-color:#9eb4ea;color:#264fa8}
.option{border-radius:13px;background:#fff;border:1px solid #dce4ee;padding:16px;font-size:14px;line-height:1.6}.option:hover:not(:disabled){border-color:#9fb4d9}.option .letter{background:#f2f5fa;color:#556882;border-radius:8px}
.question{font-size:clamp(19px,2vw,24px);line-height:1.45;font-weight:750;letter-spacing:-.48px}
.bottom-nav{position:fixed;left:50%;right:auto;transform:translateX(-50%);bottom:calc(env(safe-area-inset-bottom) + 10px);width:min(calc(100vw - 16px),560px);max-width:calc(100vw - 16px);height:70px;padding:8px 6px;border:1px solid rgba(215,228,246,.92);border-radius:18px;background:rgba(255,255,255,.91);box-shadow:0 8px 28px #132a5425;backdrop-filter:blur(24px) saturate(130%);-webkit-backdrop-filter:blur(24px) saturate(130%);display:flex;align-items:center;gap:1px}
.navitem{min-width:0;width:0;flex:1 1 0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:3px;padding:6px 1px;color:#8592a6;font-size:9px;line-height:1.2;font-weight:720;border-radius:12px;text-align:center;min-height:52px}
.navitem .navicon,.navitem .navicon .icon-svg{width:19px;height:19px;line-height:1;display:grid;place-items:center;font-size:initial}
.navitem.active{color:#2957b5;background:#ecf2ff}
.calendar-card{max-width:850px;margin-inline:auto}.cal-day,.cal-empty{min-width:0}.cal-day.active{background:#dfe9ff}.calendar-grid{gap:7px}.calendar-weekdays{gap:7px}
.stat,.card,.tile,.review-card,.form-card,.btn,.hero,.bottom-nav{min-width:0}
*:focus-visible{outline:3px solid #7ca4ee!important;outline-offset:2px}
@media(max-width:520px){.page{padding-inline:16px}.top{margin-bottom:27px}.heading{font-size:29px}.subhead{font-size:13px;margin-bottom:22px}.hero{padding:24px 21px}.hero-art{right:-20px}.hero-art .icon-svg{width:145px;height:145px}.hero h2{font-size:25px}.hero p{font-size:13px;max-width:275px}.whitebtn,.hero-secondary{min-height:42px;padding:10px 12px;font-size:12px;margin-right:5px}.stat{padding:15px 12px}.stat strong{font-size:23px}.stat small{font-size:10px}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.tile-grid .tile{min-height:132px;display:flex;flex-direction:column;text-align:center;justify-content:center;gap:10px;padding:12px}.tile-copy{align-items:center;gap:5px}.tile-copy strong{font-size:12px;text-align:center}.tile-copy span{text-align:center!important;font-size:10px}.tile .ico{flex:0 0 auto;width:40px;height:40px}.tile .tile-arrow{display:none}.section-head h2{font-size:17px}.card,.form-card{padding:17px}.review-card{padding:16px}}
@media(max-width:360px){.page{padding-inline:12px}.tile-grid .tile{padding:10px;min-height:132px}.stat{padding:12px 8px}.stat strong{font-size:20px}.stat small{font-size:9px}.hero-secondary{margin-top:8px}.navitem{font-size:8px}}
@media(min-width:900px){
 html{background:#f7f9fd}body{background:#f7f9fd}.app-shell{background:#f7f9fd}
 .workspace{display:grid;grid-template-columns:242px minmax(0,1fr);align-items:stretch;min-height:100dvh}
 .nav-column{position:relative;left:auto;right:auto;bottom:auto;z-index:1;pointer-events:auto;max-width:none;min-height:100%;padding:35px 16px 25px;background:#15294a;border-right:1px solid #183658;display:flex;flex-direction:column;align-items:stretch}
 .side-identity{display:flex;align-items:center;gap:11px;color:#fff;padding:1px 10px 43px}.side-mark{width:42px;height:42px;display:grid;place-items:center;color:#d2e1ff;background:#294879;border:1px solid #3d5885;border-radius:13px}.side-mark .icon-svg{width:23px;height:23px}.side-identity strong{display:block;font-size:16px;font-weight:780;letter-spacing:-.4px}.side-identity small{display:block;font-size:10px;margin-top:2px;color:#afc0d8}
 .side-label{display:block;font-size:10px;letter-spacing:1.4px;color:#819cba;font-weight:750;margin:0 12px 10px}
 .nav-column .bottom-nav{position:sticky;top:30px;bottom:auto;left:auto;right:auto;transform:none;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:6px;width:100%;max-width:none;height:auto;background:transparent;backdrop-filter:none;border:0;border-radius:0;box-shadow:none;padding:0}
 .bottom-nav .navitem{width:100%;flex:0 0 auto;min-height:47px;display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:13px;border-radius:11px;padding:11px 13px;font-size:13px;font-weight:680;line-height:1.3;color:#afc1d8;text-align:left}
 .bottom-nav .navitem:hover{background:#223f66;color:#fff}.bottom-nav .navitem.active{background:#315790;color:#fff}
 .navitem .navicon,.navitem .navicon .icon-svg{width:19px;height:19px}
 .side-foot{display:block;margin:auto 10px 2px;padding-top:20px;color:#8ca3c1;font-size:11px;line-height:1.8}
 .page{width:100%;min-height:100dvh;padding:34px clamp(30px,5vw,84px) 95px;margin:0;max-width:none;background:#f7f9fd}
 .top{margin-bottom:48px;padding-bottom:19px;border-bottom:1px solid #e9edf4}.top .brand{opacity:.8}.top .brand .logo{width:36px;height:36px}.top .brand strong{font-size:14px}
 .page-content{max-width:1100px;width:100%;margin-inline:auto}
 .heading{font-size:clamp(32px,2.8vw,42px)}.subhead{font-size:15px}
 .hero{padding:37px 39px;min-height:245px}.hero h2{font-size:34px;max-width:600px}.hero p{max-width:530px}.hero-art .icon-svg{width:230px;height:230px}
 .tile-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
 .tile-grid .tile{min-height:120px;padding:19px;gap:12px}
 .stat-grid{gap:16px}.stat{padding:23px}.stat strong{font-size:33px}.card,.form-card{padding:27px}
 .calendar-card{max-width:850px}.cal-day{min-height:62px}.question-img{max-height:380px}
 .option{font-size:15px;padding:19px}.form-card{max-width:100%}.button-stack{gap:12px}
}
@media(min-width:900px) and (max-width:1120px){.workspace{grid-template-columns:211px minmax(0,1fr)}.nav-column{padding-inline:12px}.page{padding:30px 28px 85px}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
body.dark{--bg:#111b2e;--white:#1b2942;--navy:#e6edfa;--muted:#a5b4c9;--line:#34435c;--soft:#253851;--blue:#91b0ff;--glass-bg:rgba(27,42,67,.96);--glass-border:#34445e;color:var(--navy);background:#111a2c}
body.dark .app-shell,body.dark .page{background:#101a2d}
body.dark .nav-column{background:#0b1425}
body.dark .brand .logo{background:#2d4165;color:#cbdcff;border-color:#3e5275}
body.dark .round-btn,body.dark .card,body.dark .form-card,body.dark .stat,body.dark .review-card,body.dark .tile,body.dark .option,body.dark .chip{background:#1b2a43;color:var(--navy);border-color:#374762}
body.dark .tile-copy strong{color:var(--navy)}body.dark .tile-copy span{color:var(--muted)}
body.dark .tile .ico{background:#293e63;color:#c3d5ff;border-color:#3b5077}
body.dark .btn.ghost{background:#1b2a43;color:#e8edfc;border-color:#43546f}
body.dark .form-control{background:#1c2c47;border-color:#415373;color:var(--navy)}
body.dark .bottom-nav{background:rgba(26,42,67,.93);border-color:#405474}
body.dark .navitem.active{background:#294773;color:#c9dcff}
body.dark .status-note{background:#263a55;border-color:#344663;color:#b8c7dc}
body.dark .hero{background:linear-gradient(115deg,#173364,#254a92,#3362b7)}
body.dark .cal-day.active{background:#294a86}
@media(min-width:900px){body.dark .bottom-nav{background:transparent;border:0}body.dark .navitem.active{background:#294e84;color:#fff}}
@media(prefers-reduced-motion:reduce){.tile,.btn{transition:none}}