/* =====================================================================
   IMA Virtual · APP — layout y pantallas (usa design-system tokens)
   ===================================================================== */

/* ---------- App shell ---------- */
.app{ display:flex; min-height:100vh; }
.app__main{ flex:1; min-width:0; display:flex; flex-direction:column; background:var(--bg-soft-2); }
.app__content{ flex:1; }
.page-wrap{ max-width:var(--maxw); margin:0 auto; padding:var(--sp-8); width:100%; }
.page-title{ font-family:var(--font); font-weight:var(--fw-black); font-size:var(--fs-2xl); }
.page-sub{ color:var(--ink-soft); margin-top:4px; }
.section-title{ font-family:var(--font); font-weight:var(--fw-bold); font-size:var(--fs-lg); margin:var(--sp-8) 0 var(--sp-4); }

/* ---------- Login ---------- */
.login{ min-height:100vh; display:grid; grid-template-columns:1.05fr .95fr; }
.login__aside{ position:relative; overflow:hidden; color:#fff; padding:56px 52px; display:flex; flex-direction:column; justify-content:center;
  background:radial-gradient(120% 120% at 75% 15%, var(--blue-bright) 0%, var(--blue) 38%, var(--blue-dark) 78%, var(--blue-deep) 100%); }
.login__aside::after{ content:""; position:absolute; inset:0; opacity:.10; background-image:radial-gradient(rgba(255,255,255,.9) 1.2px, transparent 1.2px); background-size:26px 26px; }
.login__aside > *{ position:relative; z-index:1; }
.login__brand{ display:flex; flex-direction:column; align-items:flex-start; gap:16px; margin-bottom:34px; }
.login__brand .avatar{ width:54px; height:54px; background:var(--red); font-size:1.4rem; }
.login__brand b{ font-family:var(--font); font-weight:var(--fw-black); font-size:1.5rem; }
.login__aside h1{ color:#fff; font-size:clamp(1.8rem,3vw,2.6rem); font-weight:800; line-height:1.15; }
.login__aside h1 .hl{ position:relative; white-space:nowrap; }
.login__aside h1 .hl::after{ content:""; position:absolute; left:0; right:0; bottom:3px; height:12px; background:var(--red); z-index:-1; border-radius:4px; }
.login__aside p{ color:#dcebfb; font-size:1.08rem; margin-top:16px; max-width:440px; }
.login__feats{ display:grid; gap:12px; margin-top:30px; }
.login__feats span{ display:flex; align-items:center; gap:10px; font-weight:600; }
.login__feats .ic{ width:30px;height:30px;display:grid;place-items:center;background:rgba(255,255,255,.16);border-radius:8px; }
.login__form{ display:flex; align-items:center; justify-content:center; padding:40px; background:var(--bg); }
.login__card{ width:100%; max-width:380px; }
.login__card h2{ font-size:var(--fs-2xl); font-weight:800; }
.login__roles{ display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin:18px 0; }
.role-pill{ font-family:var(--font); font-weight:600; font-size:var(--fs-sm); padding:10px 6px; border-radius:14px; border:1.5px solid var(--line); background:var(--bg); cursor:pointer; text-align:center; transition:.2s; }
.role-pill[aria-pressed="true"]{ border-color:var(--blue); background:var(--info-bg); color:var(--blue-dark); }
.login__hint{ font-size:var(--fs-xs); color:var(--ink-soft); margin-top:14px; text-align:center; }

/* ---------- Dashboard hero ---------- */
.hero-card{ background:linear-gradient(135deg,var(--blue),var(--blue-deep)); color:#fff; border-radius:var(--radius-lg); padding:var(--sp-8); position:relative; overflow:hidden; }
.hero-card::after{ content:""; position:absolute; inset:0; opacity:.10; background-image:radial-gradient(rgba(255,255,255,.9) 1.2px, transparent 1.2px); background-size:26px 26px; }
.hero-card > *{ position:relative; z-index:1; }
.hero-card h2{ color:#fff; font-size:var(--fs-2xl); font-weight:800; }
.hero-card .lead{ color:#dcebfb; margin:6px 0 18px; }
.hero-card .progress{ background:rgba(255,255,255,.25); max-width:420px; }
.hero-card .meta{ font-size:var(--fs-sm); color:#cfe2f8; margin-top:8px; }
.continue{ display:flex; align-items:center; gap:16px; background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.18); border-radius:var(--radius); padding:16px 18px; margin-top:20px; max-width:560px; }
.continue .icon-box{ background:rgba(255,255,255,.2); color:#fff; }
.continue .ct{ flex:1; }
.continue .ct b{ font-family:var(--font); display:block; }
.continue .ct span{ font-size:var(--fs-sm); color:#cfe2f8; }

/* ---------- Grids ---------- */
.grid{ display:grid; gap:var(--sp-5); }
.grid--3{ grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); }
.grid--2{ grid-template-columns:repeat(auto-fill,minmax(320px,1fr)); }
.grid--4{ grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); }

/* ---------- Course card ---------- */
.course-card{ cursor:pointer; }
.course-card__cover{ position:relative; height:96px; border-radius:var(--radius-sm); display:grid; place-items:center; color:#fff; margin-bottom:14px; }
.course-card__cover svg{ width:40px; height:40px; }
.course-card__cycle{ position:absolute; top:8px; right:8px; background:rgba(255,255,255,.22); color:#fff; font-family:var(--font); font-weight:700; font-size:var(--fs-xs); padding:3px 10px; border-radius:999px; }
.course-card h3{ font-size:var(--fs-lg); }
.course-card .meta{ color:var(--ink-soft); font-size:var(--fs-sm); margin:4px 0 12px; }

/* ---------- Video block (clases en video) ---------- */
.video-block{ margin:var(--sp-4) 0; border:1px solid var(--line); border-radius:var(--radius-sm); overflow:hidden; }
.video-player{ position:relative; aspect-ratio:16/9; background:linear-gradient(135deg,var(--blue-dark),var(--blue-deep)); color:#fff; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:14px; cursor:pointer; }
.video-player::after{ content:""; position:absolute; inset:0; opacity:.12; background-image:radial-gradient(rgba(255,255,255,.9) 1.2px, transparent 1.2px); background-size:24px 24px; }
.video-play{ position:relative; z-index:1; width:64px; height:64px; border-radius:50%; background:var(--red); display:grid; place-items:center; box-shadow:0 12px 30px -10px rgba(225,35,30,.8); }
.video-play svg{ margin-left:4px; }
.video-title{ position:relative; z-index:1; font-family:var(--font); font-weight:700; }
.video-chapters{ padding:12px 16px; background:var(--bg-soft-2); }
.video-chapters__h{ font-family:var(--font); font-weight:700; font-size:var(--fs-sm); color:var(--ink-soft); margin-bottom:8px; }
.video-chapter{ display:flex; align-items:center; gap:12px; width:100%; text-align:left; border:0; background:none; padding:7px 8px; border-radius:8px; cursor:pointer; font-family:var(--font-body); font-size:var(--fs-sm); color:var(--ink); }
.video-chapter:hover{ background:var(--info-bg); color:var(--blue); }
.video-time{ font-family:var(--font); font-weight:700; color:var(--blue); background:var(--info-bg); padding:2px 8px; border-radius:6px; font-size:var(--fs-xs); flex:none; }

/* ---------- Logo IMA ---------- */
.sidebar__brand{ flex-direction:column; gap:10px; text-align:center; }
.sidebar__brand > div:last-child{ display:flex; flex-direction:column; align-items:center; }
.sidebar__logo{ width:120px; height:120px; border-radius:20px; background:#fff; border:3px solid #fff; box-shadow:0 6px 18px rgba(0,0,0,.18); display:grid; place-items:center; flex-shrink:0; padding:12px; }
.sidebar__logo img{ width:100%; height:100%; object-fit:contain; }
.login__logo{ width:150px; height:150px; border-radius:24px; background:#fff; display:grid; place-items:center; padding:16px; box-shadow:0 10px 30px rgba(0,0,0,.22); }
.login__logo img{ width:100%; height:100%; object-fit:contain; }
.login__brand b{ font-size:1.9rem; }
.avatar--img{ object-fit:cover; padding:0; }

/* ---------- Conmutador de vista (segmented) ---------- */
.seg{ display:inline-flex; background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius-pill); padding:3px; }
.seg__btn{ border:0; background:none; cursor:pointer; font-family:var(--font); font-weight:600; font-size:var(--fs-sm); color:var(--ink-soft); padding:7px 18px; border-radius:var(--radius-pill); }
.seg__btn.is-active{ background:var(--blue); color:#fff; }

/* ---------- Calendario (vista mes) ---------- */
.cal-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; }
.cal-grid{ display:grid; grid-template-columns:repeat(7,1fr); gap:6px; }
.cal-dow{ text-align:center; font-family:var(--font); font-weight:700; font-size:var(--fs-xs); color:var(--ink-soft); padding-bottom:4px; }
.cal-cell{ min-height:88px; border:1px solid var(--line); border-radius:10px; padding:6px; display:flex; flex-direction:column; gap:4px; background:var(--bg); }
.cal-cell--empty{ border:0; background:transparent; }
.cal-num{ font-family:var(--font); font-weight:700; font-size:var(--fs-sm); color:var(--ink-soft); }
.cal-ev{ border:0; text-align:left; cursor:pointer; font-size:.72rem; line-height:1.2; padding:3px 6px; border-radius:6px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; font-family:var(--font-body); }
.cal-ev--tarea{ background:var(--info-bg); color:var(--blue-dark); }
.cal-ev--vivo{ background:var(--danger-bg); color:var(--red-dark); font-weight:700; }

/* ---------- Clase en vivo ---------- */
.live-hero{ background:linear-gradient(135deg,var(--blue),var(--blue-deep)); border-radius:var(--radius); padding:var(--sp-8); position:relative; overflow:hidden; }
.live-hero::after{ content:""; position:absolute; inset:0; opacity:.1; background-image:radial-gradient(rgba(255,255,255,.9) 1.2px,transparent 1.2px); background-size:24px 24px; }
.live-hero>*{ position:relative; z-index:1; }
.live-link{ display:flex; align-items:center; gap:14px; background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius-sm); padding:14px 16px; margin-top:10px; }
.live-link>span:first-child{ width:44px; height:44px; border-radius:50%; background:var(--red); color:#fff; display:grid; place-items:center; flex:none; }

/* ---------- Lista de mensajes (DM) ---------- */
.dm-row{ display:flex; align-items:center; gap:14px; }

/* ---------- Lesson steps ---------- */
.lesson-steps{ display:flex; align-items:center; gap:14px; margin:var(--sp-4) 0 var(--sp-6); }

/* ---------- Carnet estudiantil ---------- */
.carnet{ background:linear-gradient(160deg,var(--blue-dark),var(--blue-deep)); color:#fff; border-radius:var(--radius); padding:22px; box-shadow:var(--shadow); position:relative; overflow:hidden; }
.carnet::after{ content:""; position:absolute; inset:0; opacity:.08; background-image:radial-gradient(rgba(255,255,255,.9) 1.2px,transparent 1.2px); background-size:22px 22px; }
.carnet>*{ position:relative; z-index:1; }
.carnet__head{ display:flex; align-items:center; gap:10px; font-family:var(--font); font-weight:600; font-size:var(--fs-sm); color:#cfe2f8; margin-bottom:16px; }
.carnet__logo{ width:38px; height:38px; border-radius:9px; background:#fff; padding:4px; object-fit:contain; }
.carnet__photo{ width:120px; height:140px; border-radius:14px; object-fit:cover; display:block; margin:0 auto 14px; border:4px solid rgba(255,255,255,.6); background:#fff; }
.carnet__photo--empty{ display:grid; place-items:center; color:var(--blue-dark); }
.carnet__name{ text-align:center; font-family:var(--font); font-weight:800; font-size:1.3rem; }
.carnet__code{ text-align:center; font-family:var(--font); letter-spacing:1px; color:#9ec9fb; margin-top:2px; }
.carnet__rows{ margin-top:16px; display:grid; gap:8px; }
.carnet__row{ display:flex; justify-content:space-between; gap:10px; font-size:var(--fs-sm); border-bottom:1px solid rgba(255,255,255,.15); padding-bottom:6px; }
.carnet__row span{ color:#cfe2f8; }
.carnet__foot{ margin-top:16px; text-align:center; font-size:var(--fs-xs); color:#9ec9fb; }

/* ---------- Rúbrica ---------- */
.rubric{ display:grid; gap:6px; }
.rubric__head, .rubric__row{ display:grid; grid-template-columns:1fr 80px 110px; gap:10px; align-items:center; }
.rubric__head{ font-family:var(--font); font-weight:700; font-size:var(--fs-xs); text-transform:uppercase; letter-spacing:.5px; color:var(--ink-soft); padding:0 2px 4px; }
.rubric__row{ background:var(--bg-soft-2); border-radius:10px; padding:8px 12px; font-size:var(--fs-sm); }
.rubric__row span:first-child{ font-weight:600; }

/* ---------- Adjuntar archivo ---------- */
.file-drop{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.file-name{ color:var(--ink-soft); font-size:var(--fs-sm); }

/* ---------- Agenda / calendario ---------- */
.agenda-day{ font-family:var(--font); font-weight:700; color:var(--blue-dark); margin:var(--sp-4) 0 4px; text-transform:capitalize; }
.agenda-time{ display:flex; flex-direction:column; align-items:center; gap:4px; min-width:80px; }
.agenda-time b{ font-family:var(--font); font-size:var(--fs-lg); }

/* ---------- Libro de calificaciones ---------- */
.gradebook{ min-width:680px; }
.gradebook th, .gradebook td{ text-align:center; white-space:nowrap; }
.gradebook th:first-child, .gradebook td:first-child{ text-align:left; position:sticky; left:0; background:var(--white); z-index:1; }
.gradebook thead th:first-child{ background:var(--bg-soft); }

/* ---------- Contenido real (HTML del editor CKEditor) ---------- */
.lesson-html{ color:var(--ink); line-height:1.7; font-size:1.02rem; overflow-wrap:break-word; }
.lesson-html p{ margin:0 0 var(--sp-3); }
.lesson-html h1,.lesson-html h2,.lesson-html h3,.lesson-html h4{ font-family:var(--font); color:var(--ink); margin:var(--sp-5) 0 var(--sp-2); line-height:1.25; }
.lesson-html h1{ font-size:1.5rem; } .lesson-html h2{ font-size:1.3rem; } .lesson-html h3{ font-size:1.12rem; }
.lesson-html img{ max-width:100%; height:auto; border-radius:var(--radius-sm); margin:var(--sp-3) 0; }
.lesson-html a{ color:var(--blue); text-decoration:underline; }
.lesson-html ul,.lesson-html ol{ padding-left:1.4em; margin:0 0 var(--sp-3); }
.lesson-html li{ margin:4px 0; }
.lesson-html table{ width:100%; border-collapse:collapse; margin:var(--sp-3) 0; font-size:.95rem; display:block; overflow-x:auto; }
.lesson-html td,.lesson-html th{ border:1px solid var(--line); padding:8px 10px; }
.lesson-html th{ background:var(--bg-soft); font-family:var(--font); }
.lesson-html iframe{ max-width:100%; border-radius:var(--radius-sm); }
.lesson-html blockquote{ border-left:4px solid var(--blue); background:var(--bg-soft-2); margin:var(--sp-3) 0; padding:10px 16px; border-radius:0 var(--radius-sm) var(--radius-sm) 0; }
.lesson-html figure{ margin:var(--sp-3) 0; }
/* Unifica la tipografía del contenido real: anula las fuentes embebidas (font-family inline) del HTML extraído de ma.edu.co */
.lesson-html, .lesson-html *{ font-family:var(--font-body) !important; }
.lesson-html h1,.lesson-html h2,.lesson-html h3,.lesson-html h4,.lesson-html th{ font-family:var(--font) !important; }

/* Bloque de actividad (fondo ámbar, como en el Word original) */
.lesson-activity{ background:var(--warning-bg); border:1px solid #f0d28a; border-left:5px solid var(--warning); border-radius:var(--radius-sm); padding:16px 18px; margin:var(--sp-5) 0; }
.lesson-activity__h{ display:flex; align-items:center; gap:7px; font-family:var(--font); font-weight:var(--fw-bold); color:#8a5a00; margin-bottom:8px; }
.lesson-activity__h svg{ flex:none; }

/* Video embed (YouTube) */
.video-embed{ width:100%; aspect-ratio:16/9; display:block; border:0; }
.video-cap{ padding:10px 14px; font-family:var(--font); font-weight:600; font-size:var(--fs-sm); color:var(--ink-soft); background:var(--bg-soft-2); }

/* ---------- Chat del curso ---------- */
.chat-stream{ max-height:380px; overflow-y:auto; display:flex; flex-direction:column; gap:12px; padding:4px; }
.chat-msg{ display:flex; flex-direction:column; align-items:flex-start; max-width:78%; }
.chat-msg--mine{ align-self:flex-end; align-items:flex-end; }
.chat-bubble{ background:var(--bg-soft); border-radius:14px; padding:9px 14px; display:flex; flex-direction:column; gap:2px; }
.chat-msg--mine .chat-bubble{ background:var(--blue); color:#fff; }
.chat-bubble--teacher{ background:var(--info-bg); border:1px solid var(--blue); }
.chat-who{ font-family:var(--font); font-weight:700; font-size:var(--fs-xs); opacity:.85; }
.chat-time{ font-size:.7rem; color:var(--ink-soft); margin-top:3px; }

/* ---------- Course detail ---------- */
.crumbs{ display:flex; align-items:center; gap:8px; color:var(--ink-soft); font-size:var(--fs-sm); margin-bottom:14px; }
.crumbs a{ cursor:pointer; }
.module{ margin-bottom:var(--sp-6); }
.module__title{ font-family:var(--font); font-weight:var(--fw-bold); margin-bottom:10px; }
.lesson-row{ display:flex; align-items:center; gap:14px; padding:14px 16px; background:var(--white); border:1px solid var(--line); border-radius:var(--radius-sm); margin-bottom:8px; cursor:pointer; transition:.15s; }
.lesson-row:hover{ border-color:var(--blue); transform:translateX(3px); }
.lesson-row .tick{ width:26px; height:26px; border-radius:50%; border:2px solid var(--line); display:grid; place-items:center; flex:none; color:transparent; }
.lesson-row.done .tick{ background:var(--success); border-color:var(--success); color:#fff; }
.lesson-row .t{ flex:1; font-weight:600; }

/* ---------- Lesson view ---------- */
.lesson{ display:grid; grid-template-columns:1fr 280px; gap:var(--sp-8); align-items:start; }
.lesson__main{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:var(--sp-8); }
.lesson__obj{ background:var(--info-bg); border-radius:var(--radius-sm); padding:14px 16px; color:var(--blue-dark); font-size:var(--fs-sm); margin-bottom:var(--sp-6); }
.lesson-h{ font-size:var(--fs-xl); margin:var(--sp-6) 0 var(--sp-3); }
.lesson-p{ margin-bottom:var(--sp-3); color:var(--ink); }
.lesson-img{ border-radius:var(--radius-sm); margin:var(--sp-4) 0; }
.math-block{ margin:var(--sp-4) 0; padding:14px; background:var(--bg-soft-2); border-radius:var(--radius-sm); overflow-x:auto; }
.chem-eq{ background:var(--danger-bg); }
.callout{ border-radius:var(--radius-sm); padding:14px 16px; margin:var(--sp-4) 0; font-size:var(--fs-sm); }
.callout--info{ background:var(--info-bg); color:var(--blue-dark); }
.callout--success{ background:var(--success-bg); color:var(--success); }
.callout--warning{ background:var(--warning-bg); color:var(--warning); }
.steps-block{ border-left:4px solid var(--blue); background:var(--bg-soft-2); border-radius:0 var(--radius-sm) var(--radius-sm) 0; padding:16px 18px; margin:var(--sp-4) 0; }
.steps-title{ font-family:var(--font); font-weight:var(--fw-bold); margin-bottom:10px; }
.steps-ol{ padding-left:20px; display:grid; gap:8px; color:var(--ink); }
.embed-tool{ margin:var(--sp-4) 0; border:1px solid var(--line); border-radius:var(--radius-sm); overflow:hidden; background:var(--white); }
.embed-cap{ background:var(--bg-soft); padding:8px 14px; font-size:var(--fs-sm); font-weight:600; color:var(--ink-soft); }
.ggb-host{ width:100%; min-height:380px; display:grid; place-items:center; }
.mol-host{ position:relative; width:100%; height:340px; }
.embed-fallback{ padding:40px; text-align:center; color:var(--ink-soft); }
.math-out{ padding:10px 14px; font-family:monospace; font-size:var(--fs-sm); color:var(--ink-soft); border-top:1px solid var(--line); }
.lesson__side{ position:sticky; top:88px; display:grid; gap:var(--sp-4); }
.tool-list{ display:grid; gap:8px; }
.tool-list button{ display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:12px; border:1px solid var(--line); background:var(--white); cursor:pointer; font-family:var(--font); font-weight:600; font-size:var(--fs-sm); color:var(--ink); text-align:left; }
.tool-list button:hover{ border-color:var(--blue); color:var(--blue); }

/* ---------- Periodic table ---------- */
.pt-wrap{ overflow-x:auto; }
.pt-grid{ display:grid; grid-template-columns:repeat(18, minmax(34px,1fr)); gap:3px; min-width:680px; }
.pt-cell{ aspect-ratio:1; border:0; border-radius:5px; cursor:pointer; color:#22324f; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:2px; font-family:var(--font); transition:transform .1s; }
.pt-cell:hover{ transform:scale(1.18); z-index:2; box-shadow:var(--shadow-sm); }
.pt-cell .pt-z{ font-size:.5rem; opacity:.7; line-height:1; }
.pt-cell b{ font-size:.78rem; line-height:1; }
.pt-legend{ display:flex; flex-wrap:wrap; gap:8px; margin:14px 0; }
.pt-leg{ font-size:var(--fs-xs); padding:4px 10px; border-radius:999px; font-weight:600; }
.pt-info{ margin-top:8px; color:var(--ink-soft); font-size:var(--fs-sm); }
.pt-info-card{ display:inline-flex; flex-direction:column; padding:14px 22px; border-radius:var(--radius-sm); color:#22324f; min-width:160px; }
.pt-info-z{ font-size:var(--fs-sm); opacity:.7; }
.pt-info-sym{ font-family:var(--font); font-weight:800; font-size:2rem; line-height:1; }
.pt-info-name{ font-weight:700; }
.pt-info-cat{ font-size:var(--fs-sm); }
/* categorías de color */
.cat-alkali{ background:#ffd9c2; } .cat-alkaline{ background:#ffe9b0; } .cat-transition{ background:#cfe0ff; }
.cat-post{ background:#d4ecdd; } .cat-metalloid{ background:#cdeee9; } .cat-nonmetal{ background:#d7f0c2; }
.cat-halogen{ background:#fff0a8; } .cat-noble{ background:#e3d4ff; } .cat-lanthanide{ background:#ffd0e6; } .cat-actinide{ background:#ffc9d4; }

/* ---------- Quiz ---------- */
.quiz-q{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-sm); padding:18px 20px; margin-bottom:14px; }
.quiz-q .qn{ font-weight:700; font-family:var(--font); margin-bottom:12px; }
.quiz-opt{ display:flex; align-items:center; gap:10px; padding:10px 12px; border:1.5px solid var(--line); border-radius:12px; margin-bottom:8px; cursor:pointer; }
.quiz-opt:hover{ border-color:var(--blue); }
.quiz-opt input{ accent-color:var(--blue); }
.quiz-opt.correct{ border-color:var(--success); background:var(--success-bg); }
.quiz-opt.wrong{ border-color:var(--red); background:var(--danger-bg); }

/* ---------- Tables ---------- */
.tbl{ width:100%; border-collapse:collapse; background:var(--white); border-radius:var(--radius); overflow:hidden; border:1px solid var(--line); }
.tbl th,.tbl td{ text-align:left; padding:13px 16px; border-bottom:1px solid var(--line); font-size:var(--fs-sm); }
.tbl th{ font-family:var(--font); color:var(--ink-soft); background:var(--bg-soft); font-size:var(--fs-xs); text-transform:uppercase; letter-spacing:.5px; }
.tbl tr:last-child td{ border-bottom:0; }

/* ---------- Block editor (docente) ---------- */
.editor{ display:grid; grid-template-columns:200px 1fr; gap:var(--sp-6); align-items:start; }
.editor__palette{ position:sticky; top:88px; display:grid; gap:6px; }
.editor__palette button{ display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:12px; border:1px solid var(--line); background:var(--white); cursor:pointer; font-family:var(--font); font-weight:600; font-size:var(--fs-sm); color:var(--ink); }
.editor__palette button:hover{ border-color:var(--blue); color:var(--blue); }
.editor__canvas{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:var(--sp-6); min-height:400px; }
.eblock{ position:relative; border:1px dashed var(--line); border-radius:var(--radius-sm); padding:14px 16px 14px 16px; margin-bottom:12px; }
.eblock:hover{ border-color:var(--blue); }
.eblock__tag{ position:absolute; top:-9px; left:12px; background:var(--white); padding:0 8px; font-size:var(--fs-xs); color:var(--ink-soft); font-family:var(--font); font-weight:600; }
.eblock__del{ position:absolute; top:8px; right:8px; border:0; background:var(--danger-bg); color:var(--red); width:24px; height:24px; border-radius:6px; cursor:pointer; }
.eblock textarea,.eblock input{ width:100%; border:1px solid var(--line); border-radius:8px; padding:8px 10px; font-family:inherit; font-size:var(--fs-sm); }

/* ---------- Misc ---------- */
.kpi{ display:flex; align-items:center; gap:14px; }
.kpi .icon-box{ width:48px; height:48px; }
.kpi b{ font-family:var(--font); font-size:var(--fs-2xl); display:block; line-height:1; }
.kpi span{ color:var(--ink-soft); font-size:var(--fs-sm); }
.toast{ position:fixed; bottom:24px; left:50%; transform:translateX(-50%); background:var(--ink); color:#fff; padding:12px 22px; border-radius:999px; box-shadow:var(--shadow); z-index:var(--z-toast); font-weight:600; opacity:0; transition:opacity .25s, transform .25s; }
.toast.show{ opacity:1; transform:translateX(-50%) translateY(-6px); }
.row-between{ display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.stack{ display:grid; gap:var(--sp-4); }

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .lesson{ grid-template-columns:1fr; }
  .lesson__side{ position:static; }
  .login{ grid-template-columns:1fr; }
  .login__aside{ display:none; }
}
@media (max-width:760px){
  .sidebar{ position:fixed; left:0; top:0; bottom:0; transform:translateX(-100%); transition:transform .25s; z-index:60; }
  .sidebar.open{ transform:none; }
  .menu-toggle{ display:grid!important; }
  .page-wrap{ padding:var(--sp-5); }
}
.menu-toggle{ display:none; place-items:center; width:42px; height:42px; border-radius:12px; background:var(--bg-soft); border:0; cursor:pointer; }

/* ============ Mejoras 2026-06-10 (pulido + arreglos) ============ */

/* Iconos en títulos/textos (reemplazo de emojis) */
.section-title--ic, .card__title--ic, .card__text--ic, .detail-row{ display:flex; align-items:center; gap:8px; }
.section-title--ic svg, .card__title--ic svg, .card__text--ic svg, .detail-row svg{ flex:none; color:var(--blue); }
.section-title--warn svg{ color:var(--warning); }
.lesson__obj{ display:flex; align-items:flex-start; gap:8px; }
.lesson__obj-ic{ flex:none; color:var(--blue); margin-top:1px; }

/* Login: accesos demo + separador */
.login__demo{ margin-top:16px; padding-top:14px; border-top:1px solid var(--line); }
.login__demo .card__text{ display:block; margin-bottom:8px; }
.login__demo-btns{ display:flex; gap:8px; flex-wrap:wrap; }
.login__sep{ height:14px; }

/* Campo de adjunto reutilizable */
.file-field{ display:flex; flex-direction:column; gap:10px; }
.file-actions{ display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.file-actions:empty{ display:none; }
.file-thumb:empty{ display:none; }
.file-thumb__img{ max-width:160px; max-height:160px; border-radius:10px; border:1px solid var(--line); cursor:zoom-in; display:block; }
.file-thumb__doc{ display:inline-flex; flex-direction:column; align-items:center; gap:4px; padding:14px 22px; border:1px solid var(--line); border-radius:12px; background:var(--bg-soft); cursor:pointer; color:var(--red); font-family:var(--font); font-weight:700; font-size:var(--fs-xs); }
.file-hint{ font-size:.78rem; margin:0; }
.btn svg{ vertical-align:-3px; }
.btn span{ vertical-align:middle; }

/* Modal de previsualización de archivos */
.modal-overlay{ position:fixed; inset:0; background:rgba(10,24,48,.62); display:grid; place-items:center; z-index:200; padding:24px; backdrop-filter:blur(2px); }
.modal-win{ background:var(--white); border-radius:var(--radius-md); max-width:920px; width:100%; max-height:90vh; display:flex; flex-direction:column; overflow:hidden; box-shadow:var(--shadow-lg, 0 24px 60px rgba(10,30,70,.35)); }
.modal-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; padding:14px 18px; border-bottom:1px solid var(--line); font-family:var(--font); }
.modal-close{ border:0; background:var(--bg-soft); width:34px; height:34px; border-radius:10px; cursor:pointer; font-size:1rem; color:var(--ink); flex:none; }
.modal-body{ padding:16px; overflow:auto; display:grid; place-items:center; }
.modal-img{ max-width:100%; max-height:78vh; border-radius:10px; }
.modal-pdf{ width:100%; height:78vh; border:0; border-radius:8px; }
.modal-noprev{ text-align:center; display:grid; gap:12px; padding:30px; }

/* Editor: textarea de HTML + vista previa */
.eblock-html{ width:100%; font-family:var(--mono, monospace); font-size:.82rem; line-height:1.5; }
.eblock-html-prev{ background:var(--bg-soft); border-radius:10px; padding:12px 14px; max-height:280px; overflow:auto; }
.mol-edit .select{ margin-top:6px; }

/* Tarjeta de entrega de actividad dentro de la lección */
.activity-submit{ margin-top:var(--sp-4); }

/* ===== Ronda 2026-06-10 (lote grande) ===== */

/* Textareas: solo se redimensionan en vertical (no deforman el ancho del layout) */
.textarea{ resize:vertical; max-width:100%; }

/* Contenido real: texto/subrayado blanco invisible → forzar color legible */
.lesson-html [style*="color:#fff" i], .lesson-html [style*="color: #fff" i],
.lesson-html [style*="color:white" i], .lesson-html [style*="color: white" i],
.lesson-html [style*="color:#FFFFFF" i]{ color:var(--ink) !important; }
.lesson-html [style*="underline" i]{ text-decoration-color:currentColor !important; }
.lesson-html u{ text-decoration-color:currentColor; }

/* Imagen no disponible (placeholder cuando la foto del contenido está rota) */
.img-missing{ display:flex; align-items:center; justify-content:center; min-height:90px; padding:14px; margin:var(--sp-3) 0;
  border:1px dashed var(--line); border-radius:var(--radius-sm); background:var(--bg-soft); color:var(--ink-soft); font-size:var(--fs-sm); }

/* Lista de archivos adjuntos (entregas) */
.file-list{ display:flex; flex-direction:column; gap:10px; }
.file-list:empty{ display:none; }
.file-chip{ display:flex; gap:12px; align-items:center; border:1px solid var(--line); border-radius:12px; padding:8px 10px; background:var(--white); }
.file-chip__img{ width:54px; height:54px; object-fit:cover; border-radius:8px; cursor:zoom-in; flex:none; }
.file-chip__ic{ width:54px; height:54px; display:grid; place-items:center; border-radius:8px; background:var(--bg-soft); color:var(--blue); flex:none; }
.file-chip__body{ flex:1; min-width:0; display:flex; flex-direction:column; gap:6px; }
.file-chip__name{ font-size:var(--fs-sm); font-weight:600; word-break:break-word; }
.file-chip__acts{ display:flex; gap:6px; flex-wrap:wrap; }

/* Chat: imágenes, archivos y barra de entrada con adjuntos */
.chat-img{ display:block; max-width:200px; max-height:200px; border-radius:10px; margin-top:6px; cursor:zoom-in; }
.chat-file{ display:inline-flex; align-items:center; gap:6px; margin-top:6px; padding:6px 10px; border:0; border-radius:10px; background:rgba(0,0,0,.06); cursor:pointer; font:inherit; color:inherit; }
.chat-input-row{ display:flex; gap:8px; align-items:center; margin-top:12px; }
.chat-input-row .input{ flex:1; }
.chat-pending{ display:flex; gap:8px; flex-wrap:wrap; margin-top:10px; }
.chat-pending:empty{ display:none; }
.chat-pend-chip{ display:inline-flex; align-items:center; gap:6px; padding:4px 10px; border-radius:999px; background:var(--info-bg); color:var(--blue-dark); font-size:var(--fs-xs); }
.chat-pend-x{ border:0; background:none; cursor:pointer; color:inherit; font-size:.8rem; }

/* Recorte de foto de perfil */
.crop-wrap{ display:grid; place-items:center; }
.crop-canvas{ width:300px; height:300px; border-radius:50%; border:3px solid var(--line); cursor:grab; touch-action:none; background:var(--bg-soft); }
.crop-canvas:active{ cursor:grabbing; }
.crop-zoom{ width:100%; }

/* Herramientas del estudiante con descripción */
.tool-btn{ align-items:flex-start !important; }
.tool-btn__ic{ flex:none; color:var(--blue); margin-top:2px; }
.tool-btn__txt{ display:flex; flex-direction:column; gap:2px; text-align:left; }
.tool-btn__txt small{ font-weight:400; color:var(--ink-soft); font-size:.74rem; line-height:1.3; white-space:normal; }

/* Olvidé contraseña */
.login__forgot{ border:0; background:none; cursor:pointer; color:var(--blue); font-family:var(--font-body); font-size:var(--fs-sm); text-align:center; width:100%; margin-top:8px; }

/* Ojito de contraseña */
.pass-wrap{ position:relative; display:flex; align-items:center; }
.pass-wrap .input{ flex:1; padding-right:44px; }
.pass-eye{ position:absolute; right:8px; border:0; background:none; cursor:pointer; color:var(--ink-soft); display:grid; place-items:center; padding:6px; border-radius:8px; }
.pass-eye:hover{ color:var(--blue); }

/* Pagos */
.pay-amount{ font-family:var(--font); font-weight:800; color:var(--ink); }
.pay-total{ display:flex; justify-content:space-between; align-items:center; gap:14px; flex-wrap:wrap; }
.pay-total b{ font-family:var(--font); font-size:1.5rem; color:var(--blue); }

/* Certificados / historial */
.cert-row{ display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap; }

/* Alta de usuario (admin) */
.admin-newuser{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
.admin-newuser .input, .admin-newuser .select{ max-width:200px; }

/* Encabezado de asignatura (actividades segmentadas en Tareas) */
.subj-head{ display:flex; align-items:center; gap:10px; margin:var(--sp-5) 0 var(--sp-3); padding-bottom:6px; border-bottom:2px solid var(--line); }
.subj-head svg{ color:var(--blue); }
.subj-head b{ font-family:var(--font); font-size:var(--fs-md); color:var(--ink); }

/* ============ Ajustes 2026-06-10 (lote 8) ============ */

/* Anula los fondos blancos inline del contenido (barras blancas detrás del texto en actividades) */
.lesson-html [style*="background:#fff" i], .lesson-html [style*="background: #fff" i],
.lesson-html [style*="background:white" i], .lesson-html [style*="background: white" i],
.lesson-html [style*="background:#ffffff" i],
.lesson-html [style*="background-color:#fff" i], .lesson-html [style*="background-color: #fff" i],
.lesson-html [style*="background-color:white" i], .lesson-html [style*="background-color: white" i],
.lesson-html [style*="background-color:#ffffff" i]{ background:transparent !important; }

/* Espaciado compacto del contenido/actividad */
.lesson-html p{ margin:0 0 8px; }
.lesson-html p:empty{ display:none; margin:0; }
.lesson-html ul, .lesson-html ol{ margin:0 0 8px; }
.lesson-html li{ margin:2px 0; }
.lesson-html br + br{ display:none; }
.lesson-activity{ padding:14px 16px; }

/* Editor de texto corrido (contenteditable) */
.rich-edit{ min-height:160px; border:1.5px solid var(--line); border-radius:12px; padding:12px 14px; background:var(--white); outline:none; }
.rich-edit:focus{ border-color:var(--blue); box-shadow:0 0 0 3px var(--info-bg); }
.rich-edit:empty:before{ content:attr(data-ph); color:var(--ink-soft); }

/* Color por materia */
.subj-card{ border-left:5px solid var(--blue); }
.subj-tag{ font-family:var(--font); font-weight:700; font-size:var(--fs-xs); }

/* Columna del perfil (carnet + datos) */
.profile-cols{ grid-template-columns:340px 1fr; }

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .grid--2, .grid--3, .grid--4{ grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); }
  .editor{ grid-template-columns:1fr; }
  .editor__palette{ position:static; display:flex; flex-wrap:wrap; gap:8px; }
  .editor__palette button{ flex:1 1 auto; }
}
@media (max-width:820px){
  .profile-cols{ grid-template-columns:1fr; }
  .grid--2, .grid--3, .grid--4{ grid-template-columns:1fr; }
  .row-between{ flex-wrap:wrap; gap:10px; }
  .gradebook{ font-size:.85rem; }
}
@media (max-width:760px){
  .page-wrap{ padding:var(--sp-4); }
  .topbar{ padding:10px var(--sp-4); }
  .topbar__search{ display:none; }
  .lesson__main{ padding:var(--sp-5); }
  .editor__canvas{ padding:var(--sp-4); }
  .page-title{ font-size:1.5rem; }
  /* tablas con scroll horizontal en móvil */
  .tbl{ display:block; overflow-x:auto; -webkit-overflow-scrolling:touch; }
  .tbl thead, .tbl tbody{ display:table; width:100%; min-width:480px; }
  .modal-win{ max-width:100%; }
  .modal-pdf{ height:70vh; }
  .admin-newuser .input, .admin-newuser .select{ max-width:none; width:100%; }
  .hero-card{ padding:var(--sp-5); }
  .carnet{ max-width:none; }
  .login__card{ padding:var(--sp-6); }
}
@media (max-width:520px){
  .continue{ flex-wrap:wrap; }
  .continue .ct{ flex:1 1 100%; }
  .continue .btn{ width:100%; }
}
@media (max-width:430px){
  .page-wrap{ padding:14px; }
  .card{ padding:16px; }
  .btn{ padding:10px 14px; }
  .page-title{ font-size:1.35rem; }
  .seg{ flex-wrap:wrap; }
  .tabs{ overflow-x:auto; }
}