:root{
  --ink:#1b2430;
  --ink-soft:#4a5568;
  --paper:#f6f7fb;
  --card:#ffffff;
  --line:#e2e5ec;
  --brand:#01195f;
  --brand-2:#022eb0;
  --accent:#f7780a;
  --accent-soft:#fef4eb;
  --good:#2f7d4f;
  --good-soft:#eaf6ee;
  --bad:#b23a34;
  --bad-soft:#fbeceb;
  --tool:#022eb0;
  --tool-soft:#ebedf2;
  --lock:#9aa5b1;
  --radius:14px;
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:'Segoe UI', system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.55;
}
a{color:var(--brand-2);}

header.top{
  background:linear-gradient(135deg, var(--brand) 0%, #16283f 100%);
  color:#fff;
  padding:22px 24px 0;
}
.brand-row{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.brand-logo{
  flex:0 0 auto;
  height:46px;
  width:auto;
  background:#fff;
  padding:6px 12px;
  border-radius:8px;
}
header.top .eyebrow{
  text-transform:uppercase;
  letter-spacing:.13em;
  font-size:.68rem;
  color:#a9c1d8;
  margin-bottom:6px;
}
header.top h1{
  margin:0;
  font-size:1.32rem;
  line-height:1.3;
  font-weight:700;
}
header.top .sub{
  color:#cfe0ef;
  font-size:.9rem;
  margin-top:4px;
}

/* ---------- TOP NAV (menú superior horizontal, dentro del header) ---------- */
.top-nav{
  display:flex;
  align-items:stretch;
  flex-wrap:wrap;
  gap:4px;
  margin-top:18px;
  padding:0 24px;
  border-top:1px solid rgba(255,255,255,.12);
}
.top-nav a{
  color:#a9c1d8;
  text-decoration:none;
  font-size:.86rem;
  font-weight:600;
  padding:12px 18px 10px;
  border-bottom:3px solid transparent;
  white-space:nowrap;
}
.top-nav a:hover{color:#fff;}
.top-nav a.active{
  color:#fff;
  border-bottom-color:var(--accent);
}
.top-nav a.disabled{
  color:#5c7186;
  pointer-events:none;
}

/* ---------- NAV DROPDOWN (Fase 1 -> Clase 1/2) ---------- */
.nav-dropdown{position:relative;}
.nav-dropdown-trigger{
  font-family:inherit;
  background:none;
  border:none;
  color:#a9c1d8;
  font-size:.86rem;
  font-weight:600;
  padding:12px 18px 10px;
  border-bottom:3px solid transparent;
  white-space:nowrap;
  cursor:pointer;
}
.nav-dropdown-trigger::after{content:" ▾"; opacity:.7; font-size:.75em;}
.nav-dropdown-trigger:hover{color:#fff;}
.nav-dropdown.active .nav-dropdown-trigger{
  color:#fff;
  border-bottom-color:var(--accent);
}
.nav-dropdown-menu{
  display:none;
  position:absolute;
  top:100%;
  left:0;
  min-width:170px;
  background:#16283f;
  border:1px solid rgba(255,255,255,.15);
  border-radius:0 0 10px 10px;
  box-shadow:0 12px 26px rgba(0,0,0,.3);
  z-index:30;
  overflow:hidden;
}
.nav-dropdown-menu a{
  display:block;
  padding:11px 18px;
  border-bottom:1px solid rgba(255,255,255,.08);
  color:#cfe0ef;
}
.nav-dropdown-menu a:last-child{border-bottom:none;}
.nav-dropdown-menu a:hover{background:rgba(255,255,255,.08); color:#fff;}
.nav-dropdown-menu a.active{background:rgba(255,255,255,.12); color:#fff; border-bottom-color:transparent;}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu{display:block;}

/* Clase bloqueada por el control de acceso de Google Sheets (js/acceso.js):
   sin enlace funcional, texto atenuado y candado al final del título. */
.nav-dropdown-menu a.nav-clase-link.locked{
  color:var(--lock);
  cursor:not-allowed;
  pointer-events:none;
}
.nav-dropdown-menu a.nav-clase-link.locked:hover{background:none; color:var(--lock);}

.app{
  display:flex;
  align-items:flex-start;
  max-width:1180px;
  margin:0 auto;
}

/* ---------- SIDEBAR ---------- */
.sidebar{
  flex:0 0 300px;
  padding:22px 16px 60px;
  position:sticky;
  top:0;
  max-height:100vh;
  overflow-y:auto;
}
.sidebar-class-title{
  display:inline-block;
  font-size:.8rem;
  font-weight:800;
  letter-spacing:.03em;
  color:#fff;
  background:var(--accent);
  padding:4px 14px;
  border-radius:999px;
  margin:4px 8px 10px;
}
.sidebar-phase-title{
  font-size:.83rem;
  font-weight:600;
  line-height:1.4;
  color:var(--brand);
  margin:0 8px 14px;
}
.group-label{
  font-size:.72rem;
  text-transform:uppercase;
  letter-spacing:.09em;
  color:var(--ink-soft);
  font-weight:700;
  margin:22px 8px 8px;
}
.group-label:first-child{margin-top:4px;}
.sidebar-class-title + .group-label{margin-top:4px;}
.sidebar-phase-title + .group-label{margin-top:4px;}
.group-note{
  font-size:.76rem;
  color:var(--ink-soft);
  margin:0 8px 8px;
  font-style:italic;
}
ol.lesson-list{list-style:none; margin:0; padding:0;}
.lesson-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:10px;
  margin-bottom:4px;
  cursor:pointer;
  font-size:.9rem;
  color:var(--ink);
  border:1px solid transparent;
}
.lesson-item .idx{
  position:relative;
  flex:0 0 auto;
  width:22px; height:22px;
  border-radius:50%;
  background:#e5e9f1;
  color:var(--ink-soft);
  font-size:.72rem;
  font-weight:700;
  display:flex; align-items:center; justify-content:center;
}
.lesson-item .txt{flex:1;}
.lesson-item .time{font-size:.72rem; color:var(--ink-soft);}
.lesson-item:hover{background:#eef1f6;}
.lesson-item.current{
  background:#e7edf6;
  border-color:#c7d5ea;
}
.lesson-item.current .idx{background:var(--brand); color:#fff;}
.lesson-item.done .idx{background:var(--good); color:#fff;}
.lesson-item.done .txt::before{
  content:"✓";
  display:inline-block;
  color:var(--good);
  font-weight:800;
  margin-right:6px;
}
.lesson-item.locked{
  cursor:not-allowed;
  color:var(--lock);
}
.lesson-item.locked .idx{background:#eceff3; color:var(--lock);}
.lesson-item.locked .txt{color:var(--lock);}
.lock-glyph{font-size:.8rem; color:var(--lock);}

/* ---------- CONTENT ---------- */
.content{
  flex:1;
  min-width:0;
  padding:28px 28px 90px;
}
.panel-wrap{max-width:700px;}
.lesson-panel{display:none;}
.lesson-panel.active{display:block;}

.kicker{
  font-size:.74rem;
  text-transform:uppercase;
  letter-spacing:.1em;
  color:var(--brand-2);
  font-weight:700;
  margin-bottom:6px;
}
.lesson-panel h2{
  font-size:1.5rem;
  margin:0 0 4px;
  color:var(--brand);
}
.time-chip{
  display:inline-block;
  background:#eef2fb;
  border:1px solid #d3ddf2;
  color:var(--brand);
  font-size:.78rem;
  padding:4px 12px;
  border-radius:999px;
  margin:8px 0 20px;
}
.lede{color:var(--ink-soft); margin:0 0 20px; font-size:.97rem;}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
  margin-bottom:18px;
}

.welcome p{margin:0 0 14px; font-size:1rem;}
.welcome p:last-child{margin-bottom:0;}
.sign{color:var(--ink-soft); font-size:.9rem; margin-top:16px; font-style:italic;}

/* ---------- FLOW ANIMATION (mapeo de flujos de información) ---------- */
.flow-anim{margin:6px 0 22px;}
.flow-track{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  padding:10px 0 0;
}
.flow-line{
  position:absolute; top:34px; left:0; right:0; height:3px;
  background:var(--line); border-radius:2px; z-index:0;
}
.flow-dot{
  position:absolute; top:28px; left:calc(12.5% - 8px); width:16px; height:16px;
  border-radius:50%; background:var(--accent); box-shadow:0 0 0 5px var(--accent-soft);
  z-index:2; transition:left .8s cubic-bezier(.4,0,.2,1);
}
.flow-col{
  position:relative; z-index:1;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  text-align:center; padding:0 4px;
  cursor:pointer; background:none; border:none; font:inherit;
}
.flow-col:hover .flow-icon{border-color:var(--accent); color:var(--accent);}
.flow-col:focus-visible{outline:2px solid var(--accent); outline-offset:4px; border-radius:8px;}
.flow-icon{
  width:52px; height:52px; border-radius:50%;
  background:var(--card); border:2px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; color:var(--ink-soft);
  transition:border-color .3s ease, color .3s ease, background .3s ease, transform .3s ease;
}
.flow-col.active .flow-icon{
  border-color:var(--accent); color:var(--accent); background:var(--accent-soft);
  transform:scale(1.08);
}
.flow-label{font-size:.8rem; font-weight:600; color:var(--ink-soft); transition:color .3s ease;}
.flow-col.active .flow-label{color:var(--brand);}
.flow-caption{
  margin-top:18px; background:var(--card); border:1px solid var(--line); border-radius:10px;
  padding:14px 18px; font-size:.94rem; min-height:2.6em;
  display:flex; align-items:center;
}
.flow-replay{margin-top:12px;}

@media (max-width:520px){
  .flow-label{font-size:.7rem;}
  .flow-icon{width:42px; height:42px; font-size:1.05rem;}
  .flow-line{top:29px;}
  .flow-dot{top:23px;}
}

.quote-card p{margin:0 0 14px; font-size:1.02rem; font-style:italic; color:var(--ink);}
.quote-card p:last-of-type{margin-bottom:0;}
.quote-source{
  font-style:normal !important;
  font-size:.82rem !important;
  color:var(--ink-soft) !important;
  margin-top:14px !important;
}

.example-card{
  background:#f2f6fa;
  border:1px solid #d9e3ee;
  border-radius:10px;
  padding:16px 18px;
  margin-top:14px;
  font-size:.92rem;
}
.example-card .ex-tag{
  text-transform:uppercase; letter-spacing:.08em; font-size:.68rem;
  color:var(--brand-2); font-weight:700; margin-bottom:6px;
}
.example-card p{margin:0;}

.stat-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));
  gap:12px;
  margin:6px 0 18px;
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px 16px;
}
.stat .num{font-size:1.7rem; font-weight:700; color:var(--brand-2); line-height:1;}
.stat .label{margin-top:6px; font-size:.82rem; color:var(--ink-soft);}
.stat.highlight{background:var(--accent-soft); border-color:#f0d3ba;}
.stat.highlight .num{color:var(--accent);}

.sources{font-size:.85rem; color:var(--ink-soft); margin:4px 0 20px;}
.sources a{margin-right:16px; display:inline-block;}

.callout{
  background:var(--accent-soft);
  border:1px solid #f0d3ba;
  border-left:5px solid var(--accent);
  border-radius:10px;
  padding:18px 20px;
  margin-top:6px;
}
.callout .tag{
  text-transform:uppercase; letter-spacing:.08em; font-size:.7rem;
  color:var(--accent); font-weight:700; margin-bottom:6px;
}
.callout p{margin:0; font-size:1rem;}

.quiz-note{
  display:inline-block; background:#eef2fb; border:1px solid #d3ddf2; color:var(--brand);
  font-size:.8rem; padding:5px 12px; border-radius:999px; margin-bottom:14px;
}
.q-block{border-top:1px solid var(--line); padding:18px 0;}
.q-block:first-of-type{border-top:none; padding-top:2px;}
.q-text{font-weight:600; margin-bottom:10px; font-size:.95rem;}
.opts{display:flex; flex-direction:column; gap:8px;}
.opt{
  display:flex; align-items:flex-start; gap:10px; padding:10px 13px;
  border:1px solid var(--line); border-radius:10px; cursor:pointer; font-size:.92rem;
}
.opt:hover{border-color:var(--brand-2);}
.opt input{margin-top:3px;}
.opt.correct{background:var(--good-soft); border-color:#bfe4cc;}
.opt.incorrect{background:var(--bad-soft); border-color:#f0c2be;}
.fb{margin-top:9px; font-size:.85rem; color:var(--ink-soft); display:none; padding:9px 11px; border-radius:8px; background:#f2f4f8;}
.fb.show{display:block;}
.quiz-actions{margin-top:20px; display:flex; align-items:center; gap:14px; flex-wrap:wrap;}
#result{margin-top:16px; padding:16px 18px; border-radius:10px; display:none; font-size:.94rem;}
#result.pass{background:var(--good-soft); border:1px solid #bfe4cc; color:#215c39;}
#result.fail{background:var(--bad-soft); border:1px solid #f0c2be; color:#7d2822;}
#result .score{font-weight:700; font-size:1.05rem; display:block; margin-bottom:4px;}

.checklist{list-style:none; margin:0; padding:0;}
.checklist li{display:flex; gap:12px; padding:12px 0; border-top:1px solid var(--line); font-size:.94rem;}
.checklist li:first-child{border-top:none;}
.checklist .num-badge{
  flex:0 0 auto; width:24px; height:24px; border-radius:50%; background:var(--brand);
  color:#fff; font-size:.74rem; font-weight:700; display:flex; align-items:center; justify-content:center;
}

.task-box{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 22px; margin-bottom:14px;
}
.task-box h3{margin:0 0 10px; font-size:1.02rem; color:var(--brand);}
.task-box ol, .task-box ul{margin:0 0 0 18px; padding:0; font-size:.94rem;}
.task-box li{margin-bottom:8px;}
.task-box .diario-list{list-style:none; margin-left:0;}
.restriction{
  background:var(--bad-soft); border:1px solid #f0c2be; border-left:4px solid var(--bad);
  border-radius:8px; padding:12px 14px; margin-top:14px; font-size:.9rem; color:#7d2822;
}
.restriction strong{display:block; font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; margin-bottom:4px;}

.note-box{
  background:#eef2fb; border:1px solid #d3ddf2; border-left:4px solid var(--brand);
  border-radius:8px; padding:12px 14px; margin-top:14px; font-size:.9rem; color:var(--brand);
}
.note-box strong{display:block; font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; margin-bottom:4px;}

button{font-family:inherit; font-size:.92rem; font-weight:600; padding:11px 20px; border-radius:10px; border:none; cursor:pointer;}
.btn-primary{background:var(--brand); color:#fff;}
.btn-primary:hover{background:#16283f;}
.btn-secondary{background:#fff; color:var(--brand); border:1px solid var(--brand);}
.btn-primary:disabled{background:#c6cdda; cursor:not-allowed;}

.nav-buttons{
  display:flex; justify-content:space-between; align-items:center;
  margin-top:26px; padding-top:20px; border-top:1px solid var(--line); max-width:700px;
}
.end-note{font-size:.88rem; color:var(--ink-soft); font-style:italic;}

footer{background:#16283f; color:#b9c8d8; padding:22px 24px; font-size:.8rem;}

/* ---------- HOME (Index.html) ---------- */
.home-wrap{max-width:900px; margin:0 auto; padding:32px 28px 90px;}
.home-wrap h2{color:var(--brand); font-size:1.3rem; margin:0 0 6px;}
.home-wrap h2:not(:first-child){margin-top:36px;}
.home-wrap .lede{margin-bottom:26px;}
.home-wrap .card.welcome{margin-bottom:0;}
.home-wrap .tool-box{margin-top:0;}
.class-grid{display:flex; flex-direction:column; gap:14px;}
.class-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 22px; display:flex; align-items:center; gap:16px;
  text-decoration:none; color:var(--ink);
}
.class-card:hover{border-color:var(--brand-2);}
.class-card .cc-num{
  flex:0 0 auto; width:38px; height:38px; border-radius:50%; background:var(--brand); color:#fff;
  display:flex; align-items:center; justify-content:center; font-weight:700;
}
.class-card .cc-body{flex:1;}
.class-card .cc-title{font-weight:700; color:var(--brand); margin-bottom:4px;}
.class-card .cc-desc{font-size:.88rem; color:var(--ink-soft);}
.class-card .cc-arrow{font-size:1.2rem; color:var(--brand-2); flex:0 0 auto;}
.class-card.disabled{opacity:.55; pointer-events:none;}
.class-card.disabled .cc-num{background:var(--lock);}

.phase-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:16px;
}
@media (max-width:640px){
  .phase-grid{grid-template-columns:1fr;}
}
.phase-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px 24px;
}
.phase-card .eyebrow-card{
  text-transform:uppercase; letter-spacing:.09em; font-size:.7rem; color:var(--brand-2); font-weight:700;
  margin-bottom:8px; display:flex; align-items:center; gap:8px; flex-wrap:wrap;
}
.phase-card h3{margin:0 0 8px; font-size:1.02rem; color:var(--brand); line-height:1.35;}
.phase-card p{margin:0; font-size:.88rem; color:var(--ink-soft);}
.phase-status{
  display:inline-block; font-size:.66rem; font-weight:700; letter-spacing:.02em;
  padding:3px 10px; border-radius:999px; text-transform:none;
}
.phase-status.available{background:var(--good-soft); color:var(--good);}
.phase-status.soon{background:#eceff3; color:var(--lock);}

/* ---------- SUGGESTED TOOL BOX (p. ej. Diario de Formación) ---------- */
.tool-box{
  background:var(--tool-soft);
  border:1px solid #c7dde6;
  border-left:5px solid var(--tool);
  border-radius:10px;
  padding:18px 20px;
  margin-top:14px;
}
.tool-box .tag{
  text-transform:uppercase; letter-spacing:.08em; font-size:.7rem;
  color:var(--tool); font-weight:700; margin-bottom:8px; display:flex; align-items:center; gap:8px;
}
.tool-box p{margin:0 0 10px; font-size:.94rem;}
.tool-box p:last-child{margin-bottom:0;}
.tool-box a.btn-link{
  display:inline-block; margin-top:10px; background:var(--tool); color:#fff;
  text-decoration:none; font-size:.86rem; font-weight:600; padding:8px 16px; border-radius:8px;
}

@media (max-width:600px){
  .brand-logo{height:34px; padding:5px 9px;}
}

@media (max-width:900px){
  .app{flex-direction:column;}
  .sidebar{
    position:static; width:100%; max-height:none; overflow:visible;
    display:flex; flex-wrap:nowrap; overflow-x:auto; gap:6px; padding:14px 16px;
    border-bottom:1px solid var(--line);
  }
  .group-label, .group-note{display:none;}
  ol.lesson-list{display:flex; gap:6px;}
  .lesson-item{white-space:nowrap; flex:0 0 auto;}
  .content{padding:20px 18px 70px;}
}