/* ===== SIPRA · Sistema de Preparación Avanzado · estilos ===== */
:root{
  --navy:#0f2b4c; --navy-2:#163d6b; --navy-3:#2b5a95; --red:#c8102e; --red-2:#a50d26; --gold:#e9b949; --gold-ink:#8a6410; --wa:#1f9e57; --wa-2:#188049;
  --bg:#f3f5f9; --surface:#ffffff; --surface-2:#f6f8fb; --border:#dfe5ee; --border-2:#c8d2e0; --text:#14213d; --muted:#51627a;
  --ok:#1b7f46; --ok-bg:#e6f6ec; --bad:#c8102e; --bad-bg:#fde8eb; --warn:#8a5a0c; --warn-bg:#fff4dc; --info-bg:#e8f0fb; --gold-bg:#fbf1d6;
  --shadow:0 1px 2px rgba(15,43,76,.06),0 8px 24px rgba(15,43,76,.08); --shadow-lg:0 24px 60px rgba(15,43,76,.18);
  --radius:14px; --font:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif; --display:'Newsreader',Georgia,'Times New Roman',serif; --mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  --topbar-h:60px;
}
:root[data-theme="dark"]{
  --bg:#0b1220; --surface:#121c2e; --surface-2:#182338; --border:#243349; --border-2:#34486a; --text:#e6ecf5; --muted:#a3b3c9;
  --ok:#4cc584; --ok-bg:#12301f; --bad-bg:#3a1218; --warn:#f0c26a; --warn-bg:#3a2a0e; --info-bg:#14243d; --gold-bg:#3a2f12; --gold-ink:#f0c86a; --navy:#1a3a63; --navy-2:#22497c; --navy-3:#3c6fb0;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35); --shadow-lg:0 24px 60px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15.5px;line-height:1.5}
a{color:var(--navy-2);text-decoration:none}
:root[data-theme="dark"] a{color:#9cc4ff}
button{font-family:inherit;font-size:inherit}
img{max-width:100%}
h1,h2,h3{line-height:1.2;margin:0 0 .5rem}
h1{font-size:2.05rem;font-weight:700;letter-spacing:-.02em}
h2{font-size:1.4rem;font-weight:700;letter-spacing:-.01em}
h3{font-size:1.1rem;font-weight:700}
p{margin:.3rem 0 .8rem}
small,.muted{color:var(--muted)}
.mono{font-family:var(--mono)}
[hidden]{display:none!important}
:focus-visible{outline:3px solid #7fa6dd;outline-offset:2px}
.app{min-height:100vh;display:flex;flex-direction:column}
.main{flex:1;width:100%;max-width:1160px;margin:0 auto;padding:22px 18px 60px}
.main:focus{outline:none}
.footer{padding:18px;text-align:center;color:var(--muted);font-size:.82rem}
.only-mobile{display:none}

/* ---- arranque */
.boot{position:fixed;inset:0;display:grid;place-items:center;background:var(--bg);z-index:400}
.boot-card{display:flex;flex-direction:column;align-items:center;gap:14px;color:var(--muted)}
.boot-bar{width:34px;height:34px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--navy-3);animation:spin .9s linear infinite}
.boot-bar i{display:none}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---- landing (inicio de sesión): todo cabe en una sola pantalla, sin desplazamiento */
body.on-landing{background:var(--surface);overflow:hidden}
.landing{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(380px,.88fr);height:100vh;height:100dvh;overflow:hidden}
.landing-brand{position:relative;overflow:hidden;color:#fff;min-height:0;padding:clamp(18px,4.2vh,46px) clamp(24px,4.2vw,64px) clamp(16px,3.4vh,36px);display:flex;flex-direction:column;gap:clamp(8px,1.9vh,20px);
  background:radial-gradient(1100px 560px at 112% -12%,rgba(200,16,46,.30),transparent 60%),radial-gradient(900px 520px at -20% 112%,rgba(233,185,73,.20),transparent 60%),linear-gradient(160deg,#0a1f3b 0%,#0f2b4c 46%,#153b66 100%)}
.landing-brand > *{position:relative;z-index:1}
.lb-badge{align-self:flex-start;display:inline-flex;align-items:center;gap:9px;padding:6px 14px 6px 10px;border-radius:999px;border:1px solid rgba(233,185,73,.6);background:linear-gradient(90deg,rgba(233,185,73,.24),rgba(233,185,73,.06));color:#f7dc92;font-size:clamp(.7rem,1.55vh,.84rem);font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.lb-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold)}
.lb-title{display:flex;align-items:center;gap:clamp(12px,1.8vw,24px);margin-top:clamp(2px,1vh,10px)}
.lb-emblem{flex:none;width:clamp(66px,14vh,132px);height:auto;filter:drop-shadow(0 12px 26px rgba(0,0,0,.5))}
.lb-title h1{margin:0;font-family:var(--font);font-weight:700;font-size:clamp(3rem,10.5vh,6.2rem);line-height:.9;letter-spacing:.07em;color:#f0c865}
.lb-sub{margin:.4em 0 0;font-family:var(--display);font-weight:600;font-size:clamp(1.05rem,2.8vh,1.75rem);line-height:1.15;color:#fff}
.lb-lead{margin:0;max-width:56ch;color:rgba(255,255,255,.86);font-size:clamp(.9rem,1.95vh,1.08rem)}
.lb-lead b{color:#f7dc92;font-weight:600}
.lb-hero{flex:1 1 0;min-height:0;width:100%;object-fit:contain;object-position:center;filter:drop-shadow(0 26px 36px rgba(0,0,0,.35))}
.lb-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(6px,.8vw,10px)}
.lb-stats div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);border-radius:12px;padding:clamp(6px,1.2vh,10px) 12px}
.lb-stats b{display:block;font-size:clamp(1rem,2.5vh,1.35rem);font-weight:700;letter-spacing:-.02em;color:#fff}
.lb-stats span{font-size:clamp(.66rem,1.45vh,.76rem);color:rgba(255,255,255,.76)}
.landing-form{min-height:0;overflow-y:auto;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:clamp(14px,3.2vh,40px) clamp(18px,3vw,44px);background:var(--surface)}
.login-card{width:100%;max-width:384px}
/* botón a la página de SIPRA: amarillo, con pulso y un brillo que lo recorre */
:root .login-card a.btn-conoce{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:10px;margin:0 0 clamp(12px,2.4vh,22px);padding:clamp(10px,1.8vh,14px) 18px;border-radius:12px;background:#ffd21f;color:#0a1f3b;font-weight:800;font-size:clamp(.86rem,1.9vh,1rem);letter-spacing:.07em;text-align:center;box-shadow:0 6px 18px rgba(230,170,0,.35);animation:conoce-pulso 2.4s ease-out infinite;transition:background .15s,transform .15s}
:root .login-card a.btn-conoce:hover{background:#ffdf4d;transform:translateY(-2px)}
:root .login-card a.btn-conoce:focus-visible{outline:3px solid var(--navy-3);outline-offset:3px}
.btn-conoce b{font-size:1.15em;line-height:1;transition:transform .15s}
.btn-conoce:hover b{transform:translateX(3px)}
.btn-conoce::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 35%,rgba(255,255,255,.7) 50%,transparent 65%);transform:translateX(-130%);animation:conoce-brillo 3.2s ease-in-out infinite;pointer-events:none}
@keyframes conoce-pulso{0%{box-shadow:0 6px 18px rgba(230,170,0,.35),0 0 0 0 rgba(255,200,0,.6)}70%{box-shadow:0 6px 18px rgba(230,170,0,.35),0 0 0 12px rgba(255,200,0,0)}100%{box-shadow:0 6px 18px rgba(230,170,0,.35),0 0 0 0 rgba(255,200,0,0)}}
@keyframes conoce-brillo{0%,55%{transform:translateX(-130%)}85%,100%{transform:translateX(130%)}}
@media (prefers-reduced-motion: reduce){ :root .login-card a.btn-conoce,.btn-conoce::after{animation:none} }
.login-card h2{font-family:var(--display);font-weight:600;font-size:clamp(1.45rem,3.8vh,2.05rem);letter-spacing:-.01em;margin:0 0 2px}
.login-card > .muted{margin:0 0 clamp(8px,2vh,18px);font-size:.93rem}
.login-form{display:flex;flex-direction:column;gap:clamp(8px,1.7vh,14px)}
.pw-wrap{position:relative;display:flex}
.pw-wrap input{padding-right:84px}
.pw-toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:transparent;color:var(--navy-2);font-weight:700;font-size:.82rem;cursor:pointer;padding:6px 8px;border-radius:8px}
.pw-toggle:hover{background:var(--surface-2)}
.forgot{align-self:center;font-size:.86rem;font-weight:600;color:var(--navy-2)}
.forgot:hover{text-decoration:underline}
.form-error{color:var(--red);min-height:1.2em;margin:0;font-size:.88rem;font-weight:600}
.form-error:empty{min-height:0}
.or{display:flex;align-items:center;gap:10px;margin:clamp(10px,2.4vh,22px) 0 clamp(8px,1.6vh,14px);color:var(--muted);font-size:.86rem}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--border)}
.btn.wa{background:var(--wa);border-color:var(--wa);color:#fff}
.btn.wa:hover{background:var(--wa-2)}
.wa-note{text-align:center;color:var(--muted);font-size:.84rem;margin:clamp(6px,1.2vh,10px) 0 0}
.wa-note a{font-weight:700;color:var(--wa-2)}
.landing-legal{max-width:384px;text-align:center;color:var(--muted);font-size:.72rem;margin:clamp(10px,2.6vh,26px) 0 0}
@media (min-width:821px) and (max-height:700px){ .lb-lead{display:none} }
@media (min-width:821px) and (max-height:600px){ .lb-stats{display:none} }
@media (min-width:821px) and (max-height:500px){ .lb-hero{display:none} }
@media (min-width:821px) and (max-height:640px){ .wa-note{display:none} :root .login-card a.btn-conoce{margin-bottom:10px;padding:9px 16px} }
@media (max-width:820px){
  .landing{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}
  .landing-brand{padding:max(14px,env(safe-area-inset-top)) 18px 14px;gap:8px;background:radial-gradient(420px 220px at 105% -30%,rgba(200,16,46,.2),transparent 70%),radial-gradient(420px 260px at -10% 130%,rgba(233,185,73,.16),transparent 70%),linear-gradient(160deg,#0a1f3b 0%,#0f2b4c 55%,#153b66 100%)}
  .lb-hero,.lb-stats,.lb-lead{display:none}
  .lb-title{margin-top:2px}
  .lb-emblem{width:clamp(52px,9vh,76px)}
  .lb-title h1{font-size:clamp(2.3rem,7.2vh,3.3rem)}
  .lb-sub{font-size:clamp(.95rem,2.4vh,1.2rem)}
  .lb-badge{font-size:.66rem;padding:5px 12px 5px 9px}
  .landing-form{justify-content:center;padding:clamp(12px,2.6vh,26px) 18px max(12px,env(safe-area-inset-bottom))}
  :root .login-card a.btn-conoce{padding:9px 14px;margin-bottom:10px;font-size:.84rem}
  .wa-note{display:none}
  .or{margin:10px 0 8px}
  .landing-legal{margin-top:10px}
}
@media (max-width:820px) and (min-height:780px){ .lb-lead{display:block;font-size:.92rem} }
@media (max-width:820px) and (max-height:760px){ .wa-note{display:none} .or{margin:8px 0 6px} .landing-legal{margin-top:8px} :root .login-card a.btn-conoce{padding:8px 12px;margin-bottom:8px} }
@media (max-width:820px) and (max-height:640px){ .login-card > .muted,.landing-legal{display:none} .btn.lg{padding:11px 18px} input[type=email],input[type=password]{min-height:40px;padding:8px 12px} }

/* ---- top bar */
.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:16px;padding:10px 18px;min-height:var(--topbar-h);background:var(--navy);color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.18)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;min-width:0;flex:none}
:root[data-theme="dark"] .brand{color:#fff}
.brand-logo{width:36px;height:36px;flex:none;filter:drop-shadow(0 2px 6px rgba(0,0,0,.35))}
.brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.brand-text strong{font-size:1.02rem}
.brand-text small{font-size:.68rem;color:rgba(255,255,255,.78);white-space:nowrap}
.topsearch{position:relative;flex:1;max-width:460px;min-width:180px}
.topsearch input[type=search]{width:100%;min-height:38px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:11px;padding:9px 12px 9px 34px}
.topsearch input[type=search]::placeholder{color:rgba(255,255,255,.7)}
.topsearch input[type=search]:focus{background:#fff;color:var(--text);outline:none;border-color:#fff}
.topsearch input[type=search]:focus::placeholder{color:var(--muted)}
.ts-ico{position:absolute;left:11px;top:50%;transform:translateY(-52%);color:rgba(255,255,255,.8);font-size:1.05rem;pointer-events:none}
.topsearch:focus-within .ts-ico{color:var(--muted)}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{color:#fff;opacity:.82;padding:7px 11px;border-radius:9px;font-weight:600;font-size:.92rem}
:root[data-theme="dark"] .nav a{color:#fff}
.nav a:hover{opacity:1;background:rgba(255,255,255,.1)}
.nav a.active{opacity:1;background:rgba(255,255,255,.16)}
.topbar-right{display:flex;align-items:center;gap:8px}
.icon-btn{background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:9px;width:38px;height:38px;cursor:pointer;font-size:1.05rem}
.icon-btn:hover{background:rgba(255,255,255,.22)}
.user-chip{background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:999px;padding:7px 13px;cursor:pointer;font-weight:600;font-size:.86rem;max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-transform:capitalize}
.user-chip:hover{background:rgba(255,255,255,.22)}
.topbar.exam-mode .nav,.topbar.exam-mode .user-chip,.topbar.exam-mode .topsearch,.topbar.exam-mode #btn-search{display:none}

/* ---- autocompletado */
.ac-wrap{position:relative}
.ac-panel{position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);z-index:120;max-height:min(70vh,560px);overflow:auto;padding:6px}
.topsearch .ac-panel{min-width:520px}
.ac-sec{padding:4px 2px}
.ac-sec + .ac-sec{border-top:1px solid var(--border)}
.ac-title{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:6px 10px 4px}
.ac-chips{display:flex;flex-wrap:wrap;gap:6px;padding:2px 8px 8px}
.ac-chip{border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:999px;padding:5px 11px;cursor:pointer;font-size:.86rem}
.ac-chip b{font-weight:500;color:var(--muted)}
.ac-chip.on,.ac-chip:hover{border-color:var(--navy-2);background:var(--info-bg)}
.ac-item{padding:8px 10px;border-radius:10px;cursor:pointer}
.ac-item.on,.ac-item:hover{background:var(--info-bg)}
.ac-q{font-size:.9rem;line-height:1.35}
.ac-sub{font-size:.76rem;color:var(--muted);margin-top:2px}
.ac-rev{color:var(--gold-ink);font-weight:600}
.ac-foot{margin:4px;padding:9px 10px;border-radius:10px;font-weight:700;font-size:.86rem;color:var(--navy-2);cursor:pointer;text-align:right}
:root[data-theme="dark"] .ac-foot{color:#9cc4ff}
.ac-foot.on,.ac-foot:hover{background:var(--info-bg)}
.ac-empty{padding:14px;color:var(--muted);font-size:.9rem}
mark{background:#ffe38a;color:inherit;border-radius:3px;padding:0 1px}
:root[data-theme="dark"] mark{background:#6b5410}
.search-overlay{position:fixed;inset:0;z-index:150;background:var(--bg);padding:12px}
.so-box{position:relative}
.so-bar{display:flex;gap:8px}
.so-bar input{flex:1;font-size:1rem}
.search-overlay .ac-panel{position:static;margin-top:10px;max-height:calc(100vh - 90px);box-shadow:none}

/* ---- layout helpers */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spread{justify-content:space-between}
.stack{display:flex;flex-direction:column;gap:10px}
.grow{flex:1;min-width:0}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.card.flat{box-shadow:none}
.card.tight{padding:12px 14px}
.card-link{cursor:pointer;transition:transform .15s,box-shadow .15s,border-color .15s;position:relative;overflow:hidden;color:inherit;display:block}
:root[data-theme="dark"] .card-link{color:inherit}
.card-link:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(15,43,76,.16);border-color:var(--border-2)}
.card-link .arrow{position:absolute;right:16px;bottom:12px;color:var(--muted);font-weight:700}
.section-title{margin-top:26px}
.empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:30px}
.hero{border-radius:20px;color:#fff;position:relative;overflow:hidden;background-color:var(--navy);background-size:cover;background-position:right center;min-height:220px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,34,64,.97) 0%,rgba(11,34,64,.9) 42%,rgba(11,34,64,.25) 75%,rgba(11,34,64,0) 100%)}
.hero-in{position:relative;padding:28px 30px;max-width:640px}
.eyebrow{font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:0 0 4px}
.hero h1{color:#fff;font-family:var(--display);font-weight:600;font-size:2.4rem;letter-spacing:-.01em}
.hero-lead{color:rgba(255,255,255,.86);margin:4px 0 16px}
.hero-stats{display:flex;gap:10px;flex-wrap:wrap}
.hero .stat{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:9px 13px;min-width:112px;backdrop-filter:blur(3px)}
.hero .stat b{display:block;font-size:1.4rem;font-weight:700}
.hero .stat span{font-size:.76rem;color:rgba(255,255,255,.85)}
.resume-card{margin-top:16px;border-color:var(--gold);background:var(--gold-bg)}
.mode-cards{grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
.mode-cards .mode-card{display:flex;gap:14px;align-items:flex-start;padding:16px 18px 18px}
.mode-ic{width:64px;height:64px;flex:none}
.mode-card h3{margin:2px 0 4px}
.mode-card p{font-size:.87rem;margin:0;padding-right:10px}
/* ---- cuenta demo */
.demo-bar{display:flex;align-items:center;justify-content:center;gap:10px 16px;flex-wrap:wrap;padding:8px 18px;background:var(--gold-bg);border-bottom:1px solid var(--gold);color:var(--text);font-size:.88rem}
.demo-bar p{margin:0}
.demo-bar b{color:var(--gold-ink)}
.demo-corto{display:none}
body.in-exam .demo-bar{display:none}
.demo-card{display:flex;gap:18px;align-items:center;margin-top:16px;border-color:var(--gold);background:var(--gold-bg)}
.demo-card h3{margin:0 0 4px}
.demo-card p{margin:0;font-size:.9rem}
.demo-card .btn{flex:none}
.demo-hint{margin:6px 0 0;padding:8px 12px;border-left:3px solid var(--gold);background:var(--gold-bg);border-radius:0 8px 8px 0;font-size:.84rem;color:var(--text)}
.acc-ses{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px;margin-top:3px;font-size:.78rem;color:var(--muted)}
.acc-form-head{gap:8px;margin-bottom:10px}
.acc-form-head h2{margin:0}
.normas-banner{display:flex;gap:18px;align-items:center;margin-top:18px;background:linear-gradient(90deg,var(--surface) 0%,var(--surface) 55%,var(--ok-bg) 100%)}
.normas-banner img{flex:none}
.normas-banner p{font-size:.9rem}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.74rem;font-weight:700;background:var(--info-bg);color:var(--navy-2);letter-spacing:.01em;line-height:1.5}
:root[data-theme="dark"] .badge{color:#bcd4f7}
.badge.red{background:var(--bad-bg);color:var(--red)}
:root[data-theme="dark"] .badge.red{color:#ff8a9b}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.ok.subtle{background:transparent;border:1px solid var(--ok-bg)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.gold{background:var(--gold-bg);color:var(--gold-ink)}
.badge.gray{background:var(--surface-2);color:var(--muted);border:1px solid var(--border)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;font-size:.86rem;font-weight:600;user-select:none}
.pill:hover{border-color:var(--navy-2)}
.pill.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.pill small{font-weight:500;opacity:.85;color:inherit}
.divider{height:1px;background:var(--border);margin:14px 0}
.kpi{display:flex;flex-direction:column;gap:2px}
.kpi b{font-size:1.6rem;font-weight:700;letter-spacing:-.02em}
.kpi span{font-size:.82rem;color:var(--muted)}

/* ---- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:9px 16px;border-radius:11px;font-weight:600;cursor:pointer;transition:background .12s,transform .08s,border-color .12s;white-space:nowrap;text-decoration:none;min-height:40px}
:root[data-theme="dark"] a.btn{color:var(--text)}
.btn:hover{background:var(--surface-2);border-color:var(--border-2)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.primary:hover{background:var(--navy-2)}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.danger:hover{background:var(--red-2)}
.btn.ghost{background:transparent;border-color:transparent}
.btn.ghost:hover{background:var(--surface-2)}
.btn.sm{padding:6px 11px;font-size:.85rem;border-radius:9px;min-height:34px}
.btn.lg{padding:13px 22px;font-size:1.02rem;border-radius:13px}
.btn.block{width:100%}
.btn-proc{border-color:#f0c8cf;color:var(--red);background:var(--bad-bg)}
.btn-proc:hover{background:#fbd9df;border-color:var(--red)}
:root[data-theme="dark"] .btn-proc{color:#ff8a9b;border-color:#5a2230}
.btn-proc .count{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;border-radius:999px;background:var(--red);color:#fff;font-size:.72rem;font-weight:700}

/* ---- forms */
label.field{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:.9rem}
.hint{font-weight:400;color:var(--muted);font-size:.8rem}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=search],select,textarea{font-family:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--border-2);border-radius:10px;background:var(--surface);color:var(--text);width:100%;min-height:42px}
input:focus,select:focus,textarea:focus{outline:2px solid #7fa6dd;outline-offset:1px;border-color:var(--navy-2)}
.check{display:flex;align-items:flex-start;gap:10px;font-weight:500;cursor:pointer}
.check input{margin-top:3px;width:18px;height:18px;flex:none;accent-color:var(--navy)}
.seg{display:inline-flex;border:1px solid var(--border);border-radius:11px;overflow:hidden;background:var(--surface);max-width:100%}
.seg button{border:0;background:transparent;padding:9px 14px;cursor:pointer;font-weight:600;color:var(--muted);white-space:nowrap}
.seg button.on{background:var(--navy);color:#fff}
.seg.full{display:flex;width:100%;margin-top:10px}
.seg.full button{flex:1;padding:9px 8px;font-size:.88rem}
.seg.tabs{margin-bottom:16px;overflow-x:auto;scrollbar-width:none}
.seg.tabs::-webkit-scrollbar{display:none}
.time-presets{display:flex;gap:6px;flex-wrap:wrap}

/* ---- simulacro */
.sim-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:16px;align-items:start}
.sim-config{position:sticky;top:calc(var(--topbar-h) + 14px)}
.sel-exam{background:var(--surface-2)}
.apt-assoc{margin-top:12px;padding:12px;border:1px solid var(--gold);background:var(--gold-bg);border-radius:12px}
.apt-assoc b{font-size:.95rem}

/* ---- lists / tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:620px}
.table th,.table td{padding:9px 10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
.table th{font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.table tr:hover td{background:var(--surface-2)}
.list{display:flex;flex-direction:column;gap:8px}
.list-item{display:flex;gap:12px;align-items:center;padding:11px 12px;border:1px solid var(--border);border-radius:11px;background:var(--surface);cursor:pointer;color:inherit}
:root[data-theme="dark"] a.list-item{color:inherit}
.list-item:hover{border-color:var(--navy-2);background:var(--surface-2)}
.list-item.on{border-color:var(--navy);box-shadow:inset 0 0 0 1px var(--navy);background:var(--info-bg)}
.list-item .title{font-weight:600}
.list-item .sub{font-size:.8rem;color:var(--muted)}
.scroll-box{max-height:440px;overflow:auto;border:1px solid var(--border);border-radius:12px;padding:8px;background:var(--surface-2);display:flex;flex-direction:column;gap:6px}
.bar{height:8px;background:var(--border);border-radius:999px;overflow:hidden}
.bar > i{display:block;height:100%;background:var(--navy-2);border-radius:999px}
.bar > i.ok{background:var(--ok)}
.bar > i.bad{background:var(--red)}
.bar > i.warn{background:var(--gold)}
.chart{display:flex;align-items:flex-end;gap:6px;height:150px;margin-top:12px}
.chart-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end}
.chart-col small{font-size:.7rem}
.chart-bar{width:100%;border-radius:6px 6px 2px 2px}
.chart-bar.ok{background:var(--ok)}.chart-bar.bad{background:var(--red)}
.filters-card{margin-bottom:14px}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.pager{margin-top:10px}

/* ---- tarjeta de pregunta */
.qcard-head{margin-bottom:6px}
.q-foot{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px}
.q-foot .spacer{flex:1}
.rev-box{margin-top:12px;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--surface-2);font-size:.9rem}
.rev-box p{margin:6px 0}
.rev-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.rev-head b{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--navy-2)}
:root[data-theme="dark"] .rev-head b{color:#9cc4ff}
.rev-box.rev-actualizada{border-color:#ecd28c;background:var(--gold-bg)}
.rev-box.rev-corregida{border-color:#f0c2ca;background:var(--bad-bg)}
.rev-box.rev-vigente{border-color:#bfe3cc;background:var(--ok-bg)}
.rev-box.rev-derogada{border-style:dashed}
.rev-norma{font-size:.86rem}
.rev-orig{margin-top:8px}
.rev-orig summary{cursor:pointer;font-weight:600;font-size:.84rem;color:var(--muted)}
.rev-orig .q-stem.small{font-size:.9rem;margin:8px 0 6px;color:var(--muted)}
.orig-opts{margin:4px 0 0;padding-left:22px;font-size:.86rem;color:var(--muted)}
.orig-opts li.was-ok{font-weight:700;color:var(--text)}

/* ---- procedencia */
.modal.wide{max-width:760px}
.proc-list{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.proc-item{border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:var(--surface-2)}
.proc-head{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px}
.proc-puesto{font-weight:700}
.proc-cods{font-size:.8rem;margin-top:2px;word-break:break-word}
.proc-otros{margin-top:6px;font-size:.84rem}
.proc-otros summary{cursor:pointer;color:var(--navy-2);font-weight:600}
:root[data-theme="dark"] .proc-otros summary{color:#9cc4ff}
.proc-otros ul{margin:6px 0 0;padding-left:18px;max-height:180px;overflow:auto}

/* ---- normas */
.normas-hero{display:flex;gap:18px;align-items:center}
.normas-hero img{flex:none}
.normas-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.norma-item{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1px solid var(--border);border-radius:12px}
.norma-nombre{font-size:.92rem;margin:2px 0}
.norma-links{display:flex;flex-direction:column;gap:6px;flex:none}
a.kpi.card-link{color:inherit}

/* ---- exam screen */
.exam-shell{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px;align-items:start}
.exam-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;box-shadow:var(--shadow);position:sticky;top:calc(var(--topbar-h) + 6px);z-index:5}
.exam-head .who{display:flex;flex-direction:column;line-height:1.2;min-width:0;flex:1}
.exam-head .who b{font-size:.95rem}
.exam-head .who small{font-size:.76rem}
.timer{margin-left:auto;font-family:var(--mono);font-size:1.5rem;font-weight:700;padding:6px 14px;border-radius:12px;background:var(--surface-2);border:1px solid var(--border);letter-spacing:.03em;font-variant-numeric:tabular-nums}
.timer.warn{background:var(--warn-bg);color:var(--warn);border-color:#f0cf87}
.timer.danger{background:var(--bad-bg);color:var(--red);border-color:#f5b3bd;animation:pulse 1s infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.04)}}
.q-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);margin-top:16px}
.q-meta{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.q-num{font-size:.8rem;font-weight:700;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.q-stem{font-size:1.06rem;font-weight:500;white-space:pre-line;line-height:1.55;margin:6px 0 16px}
.q-passage{background:var(--surface-2);border:1px solid var(--border);padding:12px 16px;border-radius:12px;margin-bottom:14px;white-space:pre-line;font-size:.95rem;line-height:1.6}
.q-passage summary{cursor:pointer;font-weight:700;font-size:.85rem;color:var(--navy-2);margin-bottom:6px}
.q-img{cursor:zoom-in;display:block;max-width:100%;height:auto;border:1px solid var(--border);border-radius:10px;margin:0 0 14px;background:#fff}
.opts{display:flex;flex-direction:column;gap:9px}
.opt{display:flex;gap:12px;align-items:flex-start;padding:11px 14px;border:1.5px solid var(--border);border-radius:12px;background:var(--surface);cursor:pointer;text-align:left;transition:border-color .1s,background .1s;color:var(--text);width:100%;min-height:48px}
.opt:hover{border-color:var(--navy-2);background:var(--surface-2)}
.opt .letter{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--surface-2);border:1px solid var(--border);font-weight:700;flex:none;font-size:.9rem}
.opt .text{flex:1;white-space:pre-line;padding-top:3px}
.opt.sel{border-color:var(--navy);background:var(--info-bg)}
.opt.sel .letter{background:var(--navy);color:#fff;border-color:var(--navy)}
.opt.ok{border-color:var(--ok);background:var(--ok-bg)}
.opt.ok .letter{background:var(--ok);color:#fff;border-color:var(--ok)}
.opt.bad{border-color:var(--red);background:var(--bad-bg)}
.opt.bad .letter{background:var(--red);color:#fff;border-color:var(--red)}
.opt.reveal{cursor:default}
.q-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}
.q-actions .spacer{flex:1}
.navgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.navgrid-sep{grid-column:1/-1;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-top:4px}
.navgrid button{aspect-ratio:1;border:1px solid var(--border);background:var(--surface);border-radius:9px;font-weight:700;cursor:pointer;font-size:.85rem;color:var(--text);position:relative;min-width:0}
.navgrid button.ans{background:var(--navy);color:#fff;border-color:var(--navy)}
.navgrid button.cur{outline:2px solid var(--gold);outline-offset:1px}
.navgrid button.mark::after{content:"";position:absolute;top:3px;right:3px;width:7px;height:7px;border-radius:50%;background:var(--gold)}
.legend{display:flex;gap:10px;flex-wrap:wrap;font-size:.76rem;color:var(--muted);margin-top:10px}
.legend i{display:inline-block;width:11px;height:11px;border-radius:3px;vertical-align:-1px;margin-right:4px;border:1px solid var(--border)}
.side{position:sticky;top:calc(var(--topbar-h) + 84px)}
.ref-box{margin-top:12px;padding:12px 14px;border-radius:10px;background:var(--info-bg);font-size:.9rem;border:1px solid #cfdcf0}
:root[data-theme="dark"] .ref-box{border-color:#2b4368}
.ref-box b{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--navy-2);margin-bottom:3px}
:root[data-theme="dark"] .ref-box b{color:#9cc4ff}
.sol-box{background:var(--ok-bg);border-color:#bfe3cc;white-space:pre-line}
.sol-box .sol-img{margin:6px 0 0;border-radius:8px}
.kbd{font-family:var(--mono);font-size:.72rem;border:1px solid var(--border);border-bottom-width:2px;border-radius:5px;padding:1px 6px;background:var(--surface-2);color:var(--muted)}
.opts.compact{flex-direction:row;flex-wrap:wrap}
.opts.compact .opt{flex:1 1 120px;min-width:110px;width:auto}
.opts.compact .opt .text:empty{display:none}
.q-text{margin:-6px 0 12px}
.q-text summary{cursor:pointer;font-size:.82rem;color:var(--muted);font-weight:600}
.q-text .q-stem{font-size:.92rem;margin-top:6px;color:var(--muted)}

/* ---- results */
.score-hero{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center}
.score-ring{--p:0;width:150px;height:150px;border-radius:50%;background:conic-gradient(var(--ring,var(--ok)) calc(var(--p)*1%),var(--border) 0);display:grid;place-items:center;position:relative}
.score-ring::before{content:"";position:absolute;inset:12px;border-radius:50%;background:var(--surface)}
.score-ring .val{position:relative;text-align:center;line-height:1}
.score-ring .val b{display:block;font-size:2.2rem;font-weight:700}
.score-ring .val small{font-size:.75rem;color:var(--muted)}
.verdict{font-size:1.4rem;font-weight:700}
.verdict.ok{color:var(--ok)}.verdict.bad{color:var(--red)}
.partes{gap:12px}
.parte-kpi{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:12px;padding:8px 14px;background:var(--surface-2)}
.parte-kpi span{font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.parte-kpi b{font-size:1.4rem}
.tema-row{display:grid;grid-template-columns:1fr 120px 60px;gap:10px;align-items:center;padding:7px 0;border-bottom:1px solid var(--border);font-size:.9rem}
.tema-row:last-child{border-bottom:0}
.review-q{border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:10px;background:var(--surface)}
.review-q .q-stem{font-size:.98rem;margin:4px 0 10px}
.review-q .opts{gap:6px}
.review-q .opt{padding:8px 11px;font-size:.93rem;min-height:40px}

/* ---- modal / toast */
.modal-bg{position:fixed;inset:0;background:rgba(6,12,24,.55);display:grid;place-items:center;z-index:100;padding:18px;backdrop-filter:blur(2px)}
.modal{position:relative;background:var(--surface);border-radius:16px;padding:22px 24px;max-width:560px;width:100%;box-shadow:0 30px 80px rgba(0,0,0,.35);max-height:90vh;overflow:auto}
.modal h2{padding-right:34px}
.modal-x{position:absolute;right:12px;top:12px;width:34px;height:34px;border:0;border-radius:9px;background:var(--surface-2);color:var(--text);font-size:1.3rem;cursor:pointer;line-height:1}
.modal-x:hover{background:var(--border)}
.modal-actions{justify-content:flex-end;margin-top:18px}
.acct{display:flex;gap:12px;align-items:center}
.acct-av{width:46px;height:46px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700;font-size:1.2rem;flex:none}
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:11px 18px;border-radius:12px;box-shadow:var(--shadow);z-index:200;font-weight:600;animation:fadein .2s;max-width:calc(100vw - 32px);text-align:center}
@keyframes fadein{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---- confetti */
.confetti{position:fixed;top:-10px;width:10px;height:14px;z-index:300;animation:fall linear forwards;pointer-events:none}
@keyframes fall{to{transform:translateY(105vh) rotate(720deg);opacity:.9}}

/* ---- constancia (print) */
.constancia{border:3px double #0f2b4c;padding:28px 32px;border-radius:6px;background:#fff;color:#14213d;max-width:760px;margin:0 auto}
.constancia h2{color:#0f2b4c;text-align:center;letter-spacing:.04em}
.constancia .c-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 18px;font-size:.95rem;margin:14px 0}
.constancia .c-grid b{color:#0f2b4c}
.constancia .c-score{text-align:center;font-size:2rem;font-weight:700;color:#0f2b4c;margin:10px 0}
.constancia .c-foot{font-size:.75rem;color:#51627a;text-align:center;margin-top:16px}
@media print{
  body{background:#fff}
  .topbar,.footer,.no-print,#toast-root,#modal-root,.mobile-nav{display:none!important}
  .main{max-width:none;padding:0}
  .print-only{display:block!important}
}
.print-only{display:none}

/* ---- panel de accesos (administración) */
.nav a.nav-admin{color:var(--gold-ink);font-weight:700}
.topbar .nav a.nav-admin{color:#f7dc92}
.acc-head h1{margin-bottom:4px}
.acc-head p{max-width:78ch}
.acc-kpis{margin:14px 0}
.acc-grid{display:grid;grid-template-columns:minmax(300px,380px) minmax(0,1fr);gap:16px;align-items:start}
.acc-form{position:sticky;top:calc(var(--topbar-h) + 14px)}
.acc-form h2,.acc-panel h2{font-size:1.2rem;margin:0 0 10px}
.acc-pw{display:flex;gap:6px}
.acc-pw input{font-family:var(--mono);flex:1;min-width:0}
.acc-seg{display:flex;flex-wrap:wrap;border:1px solid var(--border);border-radius:11px;overflow:hidden;margin-top:6px}
.acc-seg button{flex:1 1 auto;padding:8px 10px;font-size:.84rem;border-right:1px solid var(--border)!important}
.acc-seg button:last-child{border-right:0!important}
.acc-fecha{display:flex;align-items:center;gap:10px;margin-top:8px;font-weight:500}
.acc-fecha input{max-width:190px}
.acc-fecha input:disabled{opacity:.5}
.acc-search{flex:1 1 260px;max-width:360px}
.acc-panel .filters{margin:10px 0 6px;display:flex;flex-wrap:wrap;gap:6px}
.acc-list{display:flex;flex-direction:column}
.acc-row{display:grid;grid-template-columns:40px minmax(0,1fr) auto;grid-template-areas:"av info vence" ". acc acc";gap:8px 12px;align-items:center;padding:12px 4px;border-top:1px solid var(--border)}
.acc-av{grid-area:av}
.acc-info{grid-area:info;min-width:0}
.acc-vence{grid-area:vence}
.acc-row:first-child{border-top:0}
.acc-row.off .acc-info{opacity:.6}
.acc-av{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--navy-3),var(--navy))}
.acc-nombre{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.acc-sub{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:.84rem;color:var(--muted);overflow-wrap:anywhere}
.acc-vence{display:flex;flex-direction:column;align-items:flex-end;gap:3px;text-align:right}
.acc-acciones{grid-area:acc;display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-start}
.btn.acc-del{color:var(--red);border-color:var(--border)}
.btn.acc-del:hover{background:var(--bad-bg);border-color:var(--red)}
.acc-vacio{padding:18px 4px}
.acc-cred{white-space:pre-wrap;font-family:var(--mono);font-size:.86rem;background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin:0;user-select:all}
@media (max-width:980px){ .acc-grid{grid-template-columns:1fr} .acc-form{position:static} }
@media (max-width:720px){
  .acc-row{grid-template-columns:36px minmax(0,1fr);grid-template-areas:"av info" ". vence" "acc acc";gap:8px 10px}
  .acc-av{width:36px;height:36px}
  .acc-vence{flex-direction:row;align-items:center;gap:8px;text-align:left}
  .acc-acciones .btn{flex:1 1 auto}
  .acc-search{max-width:none}
}

/* ---- responsive */
@media (max-width:1100px){
  .nav a{padding:7px 8px;font-size:.88rem}
  .topsearch{max-width:340px}
}
@media (max-width:980px){
  .sim-grid{grid-template-columns:1fr}
  .sim-config{position:static}
}
@media (max-width:900px){
  .exam-shell{grid-template-columns:1fr}
  .side{position:static}
  .navgrid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr))}
}
@media (max-width:860px){
  .nav{display:none}
  .topsearch{display:none}
  .only-mobile{display:inline-grid;place-items:center}
  .topbar-right{margin-left:auto}
}
@media (max-width:720px){
  :root{--topbar-h:56px}
  html,body{font-size:15px}
  h1{font-size:1.6rem}
  h2{font-size:1.25rem}
  .topbar{gap:10px;padding:8px 12px}
  .brand-text small{display:none}
  .main{padding:14px 12px 88px}
  .card{padding:14px 14px;border-radius:12px}
  .hero{min-height:0;background-position:70% center}
  .hero::before{background:linear-gradient(180deg,rgba(11,34,64,.92),rgba(11,34,64,.96))}
  .hero-in{padding:20px 18px}
  .hero h1{font-size:1.9rem}
  .hero .stat{min-width:0;flex:1 1 40%}
  .mode-ic{width:52px;height:52px}
  .normas-banner{flex-direction:column;align-items:flex-start;gap:10px}
  .demo-bar{justify-content:space-between;padding:6px 12px;font-size:.82rem;gap:8px}
  .demo-largo{display:none}
  .demo-corto{display:inline}
  .demo-bar .btn{padding:5px 10px;min-height:30px;font-size:.78rem}
  .demo-card{flex-direction:column;align-items:stretch;gap:12px}
  .normas-banner img{width:60px;height:60px}
  .normas-hero{flex-direction:column;align-items:flex-start}
  .norma-item{flex-direction:column}
  .norma-links{flex-direction:row}
  .score-hero{grid-template-columns:1fr;justify-items:center;text-align:center}
  .score-hero .row{justify-content:center}
  .exam-head{padding:10px 12px;gap:8px}
  .exam-head .who small{display:none}
  .timer{font-size:1.2rem;padding:5px 10px}
  .q-card{padding:16px 14px}
  .q-stem{font-size:1rem}
  .q-actions{position:sticky;bottom:0;background:var(--surface);margin:14px -14px -16px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--border);border-radius:0 0 12px 12px}
  .q-actions .btn{flex:1;padding:10px 8px;font-size:.9rem}
  .q-actions .spacer{display:none}
  .tema-row{grid-template-columns:1fr 70px 46px}
  .modal-bg{padding:0;place-items:end stretch}
  .modal{border-radius:18px 18px 0 0;max-height:92vh;padding:20px 16px calc(18px + env(safe-area-inset-bottom))}
  .modal-actions .btn{flex:1}
  .topsearch .ac-panel{min-width:0}
  .seg.full button{font-size:.8rem;padding:9px 4px}
  .seg.tabs{display:grid;grid-template-columns:repeat(3,1fr);overflow:visible;width:100%}
  .seg.tabs button{padding:9px 4px;font-size:.84rem;white-space:normal;border-bottom:1px solid var(--border)}
  .filters .pill{padding:6px 10px}
}
.mobile-nav{display:none}
@media (max-width:720px){
  .mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);z-index:40;justify-content:space-around;padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .mobile-nav a{display:flex;flex-direction:column;align-items:center;font-size:.7rem;color:var(--muted);gap:1px;font-weight:600;flex:1 1 0;min-width:0;padding:2px 0}
  .mobile-nav a.active{color:var(--navy-2)}
  :root[data-theme="dark"] .mobile-nav a.active{color:#9cc4ff}
  .mobile-nav a b{font-size:1.2rem}
  body.in-exam .mobile-nav{display:none}
  body.in-exam .main{padding-bottom:20px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}
.ficha-card{border-color:var(--border-2)}
.ficha-card::before{content:"";display:block;height:5px;margin:-18px -20px 16px;border-radius:var(--radius) var(--radius) 0 0;background:linear-gradient(90deg,var(--navy) 0 60%,var(--red) 60% 80%,var(--gold) 80%)}

/* ---- imagen ampliada */
.zoom-ov{position:fixed;inset:0;z-index:260;background:rgba(6,12,24,.86);display:flex;flex-direction:column}
.zoom-box{flex:1;overflow:auto;-webkit-overflow-scrolling:touch;padding:48px 10px 20px;display:flex;align-items:flex-start;justify-content:flex-start}
.zoom-box img{margin:0 auto;background:#fff;border-radius:8px;width:min(1100px,max(100%,720px));max-width:none;height:auto}
.zoom-x{position:absolute;top:10px;right:12px;width:40px;height:40px;border:0;border-radius:10px;background:rgba(255,255,255,.15);color:#fff;font-size:1.5rem;cursor:pointer;z-index:1}