/* ============================================================
   MAGNA — estilos (landing + app)
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700&family=Inter:wght@400;450;500;600&display=swap');

:root{
  --bg:#F4F6F2;
  --surface:#FFFFFF;
  --ink:#151915;
  --ink-soft:#59615A;
  --ink-faint:#8A928B;
  --line:#E2E6DE;
  --accent:#126646;
  --accent-strong:#0C4A32;
  --accent-tint:#E5EFE9;
  --spark:#BBEF4D;
  --danger:#B03A2E;
  --danger-tint:#F7E7E4;
  --radius:14px;
  --maxw:1140px;
  --ease:cubic-bezier(.2,.6,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,.wordmark{font-family:'Sora',sans-serif;letter-spacing:-.03em;line-height:1.05}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:var(--spark);color:var(--ink)}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:3px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft)}
.eyebrow::before{content:"";width:22px;height:12px;flex:none;
  background:
    linear-gradient(var(--accent),var(--accent)) 0 100%/4px 5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) 9px 100%/4px 9px no-repeat,
    linear-gradient(var(--accent),var(--accent)) 18px 100%/4px 12px no-repeat;}

.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:16px;top:16px}

/* ---------- Header / nav ---------- */
header{position:sticky;top:0;z-index:50;transition:background .3s var(--ease),border-color .3s var(--ease)}
header.scrolled{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.solid{background:var(--bg);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.wordmark{font-size:1.4rem;font-weight:600;display:inline-flex;align-items:center;gap:2px}
.wordmark .tick{color:var(--accent);font-size:1.15rem;transform:translateY(-2px)}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a.link{font-size:.95rem;color:var(--ink-soft);font-weight:450;transition:color .2s}
.nav-links a.link:hover{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-user{font-size:.9rem;color:var(--ink-soft)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:'Inter';font-size:.95rem;font-weight:500;
  padding:11px 20px;border-radius:10px;cursor:pointer;border:1px solid transparent;
  transition:transform .18s var(--ease),background .2s,border-color .2s,color .2s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-strong);transform:translateY(-1px)}
.btn-ghost{color:var(--ink);border-color:var(--line);background:transparent}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-lg{padding:14px 26px;font-size:1rem}
.btn-sm{padding:8px 14px;font-size:.88rem}
.btn-block{width:100%}

.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:44px;height:44px;cursor:pointer;align-items:center;justify-content:center}
.menu-toggle span{position:relative;width:18px;height:1.5px;background:var(--ink);transition:.25s}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);transition:.25s}
.menu-toggle span::before{top:-6px}.menu-toggle span::after{top:6px}
.menu-toggle[aria-expanded="true"] span{background:transparent}
.menu-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{padding:clamp(56px,9vw,120px) 0 clamp(48px,7vw,96px)}
.hero .eyebrow{margin-bottom:26px}
.hero h1{font-size:clamp(2.5rem,6.2vw,4.7rem);font-weight:600;max-width:16ch;margin-bottom:26px}
.hero h1 .mark{position:relative;white-space:nowrap;color:var(--accent)}
.hero h1 .mark svg{position:absolute;left:0;right:0;bottom:-.12em;width:100%;height:.34em;overflow:visible}
.hero .lead{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--ink-soft);max-width:52ch;margin-bottom:38px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{font-size:.9rem;color:var(--ink-faint);margin-top:22px}

/* ---------- Secciones landing ---------- */
section{padding:clamp(56px,8vw,104px) 0}
.sec-head{max-width:60ch;margin-bottom:clamp(36px,5vw,56px)}
.sec-head .eyebrow{margin-bottom:18px}
.sec-head h2{font-size:clamp(1.75rem,3.6vw,2.7rem);font-weight:600;margin-bottom:16px}
.sec-head p{color:var(--ink-soft);font-size:1.08rem;max-width:52ch}

.courses-top{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(32px,4vw,48px)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px 24px;display:flex;flex-direction:column;
  transition:transform .22s var(--ease),border-color .22s,box-shadow .22s}
.card:hover{transform:translateY(-4px);border-color:#CFD6CC;box-shadow:0 14px 34px -18px rgba(18,45,32,.28)}
.card .tag{align-self:flex-start;font-size:.74rem;font-weight:600;letter-spacing:.04em;color:var(--accent);background:var(--accent-tint);padding:5px 11px;border-radius:999px;margin-bottom:20px;text-transform:capitalize}
.card h3{font-size:1.22rem;font-weight:600;margin-bottom:10px;letter-spacing:-.02em}
.card p{color:var(--ink-soft);font-size:.96rem;margin-bottom:22px;flex:1}
.card .meta{display:flex;gap:16px;font-size:.86rem;color:var(--ink-faint);border-top:1px solid var(--line);padding-top:16px;align-items:center}
.card .meta span{display:inline-flex;align-items:center;gap:6px}
.dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none}

.tutor{background:var(--ink);color:#EDF0EC;border-radius:24px;padding:clamp(36px,5vw,68px)}
.tutor-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,5vw,64px);align-items:center}
.tutor .eyebrow{color:var(--spark)}
.tutor .eyebrow::before{background:
    linear-gradient(var(--spark),var(--spark)) 0 100%/4px 5px no-repeat,
    linear-gradient(var(--spark),var(--spark)) 9px 100%/4px 9px no-repeat,
    linear-gradient(var(--spark),var(--spark)) 18px 100%/4px 12px no-repeat;}
.tutor h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:600;margin:18px 0;color:#fff}
.tutor p{color:#B4BCB4;font-size:1.08rem;max-width:46ch}
.tutor-points{list-style:none;display:flex;flex-direction:column;gap:2px}
.tutor-points li{display:flex;gap:16px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1)}
.tutor-points li:last-child{border-bottom:1px solid rgba(255,255,255,.1)}
.tutor-points .n{font-family:'Sora';font-size:.85rem;color:var(--spark);font-weight:600;padding-top:2px;flex:none;width:24px}
.tutor-points strong{display:block;color:#fff;font-weight:500;font-size:1.05rem;margin-bottom:3px}
.tutor-points span{color:#98A098;font-size:.94rem}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{padding-top:24px;border-top:2px solid var(--ink);counter-increment:step}
.step::before{content:"0" counter(step);font-family:'Sora';font-weight:600;font-size:.9rem;color:var(--accent);display:block;margin-bottom:14px}
.step h3{font-size:1.12rem;font-weight:600;margin-bottom:8px}
.step p{color:var(--ink-soft);font-size:.95rem}

.cta{text-align:center;padding:clamp(60px,8vw,110px) 0}
.cta h2{font-size:clamp(2rem,4.5vw,3.3rem);font-weight:600;max-width:18ch;margin:0 auto 18px}
.cta p{color:var(--ink-soft);font-size:1.1rem;max-width:44ch;margin:0 auto 34px}

footer{border-top:1px solid var(--line);padding:52px 0 40px}
.foot{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-start}
.foot .wordmark{font-size:1.25rem;margin-bottom:12px}
.foot-tag{color:var(--ink-faint);font-size:.9rem;max-width:30ch}
.foot-nav{display:flex;gap:48px;flex-wrap:wrap}
.foot-col h4{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-faint);margin-bottom:14px;font-weight:600}
.foot-col a{display:block;color:var(--ink-soft);font-size:.95rem;padding:5px 0;transition:color .2s}
.foot-col a:hover{color:var(--ink)}
.foot-bottom{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--ink-faint);font-size:.85rem}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   Pantallas de la app (auth + paneles)
   ============================================================ */

/* ---- Auth (login / registro) ---- */
.auth{min-height:calc(100vh - 74px);display:flex;align-items:center;justify-content:center;padding:48px 24px}
.auth-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:40px;width:100%;max-width:420px}
.auth-card h1{font-size:1.6rem;font-weight:600;margin-bottom:6px}
.auth-card .sub{color:var(--ink-soft);font-size:.96rem;margin-bottom:28px}
.auth-switch{margin-top:22px;font-size:.92rem;color:var(--ink-soft);text-align:center}
.auth-switch a{color:var(--accent);font-weight:500}

/* ---- Formularios ---- */
.field{margin-bottom:18px}
.field label{display:block;font-size:.88rem;font-weight:500;margin-bottom:7px}
.field input:not([type="checkbox"]):not([type="radio"]){width:100%;font-family:'Inter';font-size:1rem;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);transition:border-color .2s}
.field input:not([type="checkbox"]):not([type="radio"]):focus{outline:none;border-color:var(--accent)}
.field input[type="checkbox"],
.field input[type="radio"]{width:18px;height:18px;margin:2px 0 0;padding:0;flex:0 0 18px;accent-color:var(--accent);cursor:pointer}
.field-consent label{display:flex;align-items:flex-start;gap:10px;font-weight:400;font-size:.9rem;line-height:1.45;cursor:pointer;margin-bottom:0}
.field-consent label a{color:var(--accent);text-decoration:underline}
.field .hint{font-size:.82rem;color:var(--ink-faint);margin-top:6px}

.alert{border-radius:10px;padding:12px 15px;font-size:.92rem;margin-bottom:20px}
.alert-error{background:var(--danger-tint);color:var(--danger)}
.alert-ok{background:var(--accent-tint);color:var(--accent-strong)}

/* ---- Panel / dashboard ---- */
.page{padding:clamp(36px,5vw,64px) 0 80px}
.page-head{margin-bottom:36px}
.page-head .eyebrow{margin-bottom:14px}
.page-head h1{font-size:clamp(1.7rem,3.2vw,2.4rem);font-weight:600;margin-bottom:8px}
.page-head p{color:var(--ink-soft)}

.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:36px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px}
.stat .num{font-family:'Sora';font-size:2rem;font-weight:600;line-height:1;margin-bottom:8px}
.stat .lbl{color:var(--ink-soft);font-size:.9rem}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:24px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.panel-head h2{font-size:1.15rem;font-weight:600}
.panel-head .eyebrow{margin:0}

.table-responsive{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{width:100%;border-collapse:collapse;font-size:.94rem}
.table th{text-align:left;font-weight:500;color:var(--ink-faint);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;padding:10px 12px;border-bottom:1px solid var(--line)}
.table td{padding:13px 12px;border-bottom:1px solid var(--line)}
.table tr:last-child td{border-bottom:0}
.table td .t-title{font-weight:500}

.badge{display:inline-block;font-size:.76rem;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--accent-tint);color:var(--accent-strong);text-transform:capitalize}
.badge-muted{background:#EDEFEA;color:var(--ink-soft)}
.badge-draft{background:#F1EEDA;color:#7A6A18}

.course-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.mini-card{border:1px solid var(--line);border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;gap:10px}
.mini-card h3{font-size:1.05rem;font-weight:600}
.mini-card p{color:var(--ink-soft);font-size:.92rem;flex:1}
.mini-card .mini-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:4px}
.mini-card .mini-meta{font-size:.84rem;color:var(--ink-faint)}

.empty{color:var(--ink-faint);font-size:.95rem;padding:8px 0}
.muted{color:var(--ink-soft)}

.language-selector {
    display: inline-flex;
    align-items: center;
}

.language-selector select {
    appearance: none;
    border: 1px solid var(--border, #d1d5db);
    background: transparent;
    color: inherit;
    border-radius: 8px;
    padding: .45rem 2rem .45rem .7rem;
    font: inherit;
    font-size: .85rem;
    cursor: pointer;
}

.language-selector select:focus {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---- Responsive ---- */
@media(max-width:960px){
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--surface);border-bottom:1px solid var(--line);padding:12px 24px 24px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s var(--ease);z-index:60}
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a.link{padding:14px 10px;border-bottom:1px solid var(--line);font-size:1rem;border-radius:0!important}
  .nav-links .nav-actions{flex-direction:column;align-items:stretch;padding-top:16px;gap:10px}
  .nav-links .nav-user{padding:8px 12px;text-align:center}
  .nav-actions .btn,.nav-actions .theme-toggle,.nav-actions .language-selector,.nav-actions .language-selector select{width:100%;justify-content:center}
  .menu-toggle{display:inline-flex}
}
@media(max-width:900px){
  .grid,.steps,.stat-grid{grid-template-columns:repeat(2,1fr)}
  .tutor-grid{grid-template-columns:1fr;gap:36px}
}
@media(max-width:720px){
  .course-list{grid-template-columns:1fr}
}
@media(max-width:480px){
  .grid,.steps,.stat-grid{grid-template-columns:1fr}
  .auth-card{padding:28px 22px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
  .card:hover,.btn:hover{transform:none}
}