/* =========================================================
   PRINTICA — sistema de diseño (colores sólidos)
   Paleta tomada del logo: navy #14213D / azul #1D6EF5
   ========================================================= */
:root {
	--navy: #14213d;        /* tinta principal (logo) */
	--navy-2: #0d1729;      /* fondos oscuros (hero, aula) */
	--navy-3: #1b2a47;      /* superficies sobre oscuro */
	--azul: #1d6ef5;        /* azul Printica */
	--azul-hover: #1656c4;
	--azul-suave: #e8f0fe;
	--fondo: #f5f7fb;
	--tinta: #1e293b;
	--gris: #64748b;
	--gris-claro: #94a3b8;
	--borde: #e5e9f0;
	--blanco: #ffffff;
	--ok: #15803d;
	--ok-suave: #dcfce7;
	--error: #b91c1c;
	--error-suave: #fee2e2;
	--amarillo: #b45309;
	--amarillo-suave: #fef3c7;
	--radio: 12px;
	--sombra: 0 1px 3px rgba(20, 33, 61, .08);
	--sombra-hover: 0 8px 24px rgba(20, 33, 61, .14);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; background: var(--fondo); color: var(--tinta); line-height: 1.55; }
a { color: var(--azul); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.contenedor { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* ---------- Logo (archivo SVG) ---------- */
.logo-img { height: 34px; display: block; }
.aula-topbar .logo-img { height: 26px; }
.pie .logo-img { height: 22px; display: inline-block; vertical-align: middle; margin-right: 8px; }
.certificado .logo-img { height: 44px; display: inline-block; }

/* ---------- Logo (wordmark CSS, fallback) ---------- */
.logo-printica { font-weight: 800; font-size: 1.45rem; letter-spacing: -.02em; color: var(--blanco); display: inline-flex; align-items: baseline; }
.logo-printica:hover { text-decoration: none; }
.logo-printica .idot { position: relative; }
.logo-printica .idot::after { content: ''; position: absolute; width: .16em; height: .16em; background: var(--azul); border-radius: 25%; top: .06em; left: 50%; transform: translateX(-50%); }
.logo-tag { color: var(--gris-claro); font-size: .78rem; font-weight: 500; margin-left: 10px; }

/* ---------- Barra superior ---------- */
.topbar { background: var(--navy-2); color: var(--blanco); position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--navy-3); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.nav { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.nav a { color: #c7d2e4; font-weight: 500; font-size: .95rem; }
.nav a:hover { color: var(--blanco); text-decoration: none; }
.nav-admin { color: #7fb0ff !important; }

/* ---------- Botones ---------- */
.btn { display: inline-block; background: var(--azul); color: var(--blanco) !important; padding: 11px 24px; border-radius: 9px; border: none; font-size: .98rem; font-weight: 600; cursor: pointer; font-family: inherit; transition: background .15s; }
.btn:hover { background: var(--azul-hover); text-decoration: none; }
.btn-chico { padding: 7px 16px; font-size: .88rem; }
.btn-ok { background: var(--ok); }
.btn-ok:hover { background: #166534; }
.btn-borde { background: transparent; color: var(--azul) !important; border: 1.5px solid var(--azul); }
.btn-borde:hover { background: var(--azul-suave); }
.btn-blanco { background: var(--blanco); color: var(--navy) !important; }
.btn-blanco:hover { background: #e2e8f0; }
.btn-peligro { background: var(--error); }
.btn-peligro:hover { background: #991b1b; }

/* ---------- Mensajes flash ---------- */
.flash { margin: 18px 0; padding: 12px 16px; border-radius: 9px; font-weight: 500; }
.flash-ok { background: var(--ok-suave); color: var(--ok); }
.flash-error { background: var(--error-suave); color: var(--error); }

/* ---------- Chips / badges ---------- */
.chip { display: inline-block; padding: 3px 11px; border-radius: 999px; font-size: .76rem; font-weight: 700; letter-spacing: .02em; }
.chip-gratis { background: var(--ok-suave); color: var(--ok); }
.chip-info { background: var(--azul-suave); color: var(--azul-hover); }
.chip-borrador { background: var(--amarillo-suave); color: var(--amarillo); }
.chip-principiante { background: var(--ok-suave); color: var(--ok); }
.chip-intermedio { background: var(--azul-suave); color: var(--azul-hover); }
.chip-avanzado { background: #ede9fe; color: #6d28d9; }
.meta { color: var(--gris); font-size: .86rem; }

/* ---------- Hero (home) ---------- */
.hero { background: var(--navy-2); color: var(--blanco); margin: 0 0 36px; }
.hero.con-foto { background-size: cover; background-position: center right; background-repeat: no-repeat; }
@media (max-width: 860px) {
	/* En pantallas chicas la foto queda detrás del texto: oscurecer con color sólido para legibilidad */
	.hero.con-foto { background-color: rgba(13, 23, 41, .82); background-blend-mode: multiply; }
}
.hero-inner { max-width: 1140px; margin: 0 auto; padding: 64px 20px 56px; }
.hero .kicker { color: #7fb0ff; font-weight: 700; font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 12px; }
.hero h1 { font-size: 2.6rem; line-height: 1.15; margin-bottom: 14px; letter-spacing: -.02em; }
.hero h1 .azul { color: var(--azul); }
.hero p.baja { color: #b9c5da; font-size: 1.1rem; max-width: 560px; margin-bottom: 26px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-features { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-feature { display: flex; gap: 10px; align-items: flex-start; }
.hero-feature .ico { font-size: 1.3rem; }
.hero-feature b { display: block; font-size: .93rem; }
.hero-feature span { color: #8fa3c4; font-size: .84rem; }

/* ---------- Secciones ---------- */
.seccion { margin-bottom: 44px; }
.seccion-cabecera { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
.seccion-cabecera h2 { font-size: 1.45rem; letter-spacing: -.01em; }

/* ---------- Tarjetas de curso ---------- */
.grilla-cursos { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 22px; }
.tarjeta-curso { background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--sombra); transition: box-shadow .18s, transform .18s; }
.tarjeta-curso:hover { box-shadow: var(--sombra-hover); transform: translateY(-2px); }
.tarjeta-curso .portada { position: relative; aspect-ratio: 16/9; background: var(--navy); display: flex; align-items: center; justify-content: center; color: var(--blanco); font-size: 2.6rem; font-weight: 800; }
.tarjeta-curso .portada img { width: 100%; height: 100%; object-fit: cover; }
.tarjeta-curso .portada .chip { position: absolute; top: 10px; left: 10px; }
.tarjeta-cuerpo { padding: 16px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.tarjeta-cuerpo h3 { font-size: 1.05rem; line-height: 1.3; }
.tarjeta-cuerpo h3 a { color: var(--tinta); }
.tarjeta-cuerpo h3 a:hover { color: var(--azul); text-decoration: none; }
.tarjeta-cuerpo .sub { color: var(--gris); font-size: .89rem; flex: 1; }
.tarjeta-pie { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
.precio { font-weight: 800; font-size: 1.08rem; color: var(--navy); }

/* ---------- Continúa aprendiendo ---------- */
.continua { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; }
.continua-item { background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); padding: 14px 16px; display: flex; gap: 14px; align-items: center; box-shadow: var(--sombra); }
.continua-item .mini { width: 72px; height: 46px; border-radius: 8px; background: var(--navy); color: var(--blanco); display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0; overflow: hidden; }
.continua-item .mini img { width: 100%; height: 100%; object-fit: cover; }
.continua-item .datos { flex: 1; min-width: 0; }
.continua-item .datos b { display: block; font-size: .93rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.continua-item .pct { font-weight: 700; color: var(--azul); font-size: .9rem; }

/* ---------- Barra de progreso ---------- */
.barra-progreso { background: #e2e8f0; border-radius: 999px; height: 8px; overflow: hidden; margin: 8px 0; }
.barra-progreso > span { display: block; height: 100%; background: var(--azul); border-radius: 999px; }
.barra-progreso.verde > span { background: var(--ok); }

/* ---------- Stats (dashboard alumno + admin) ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px; margin-bottom: 30px; }
.stat { background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); padding: 18px 20px; box-shadow: var(--sombra); }
.stat .n { font-size: 1.75rem; font-weight: 800; color: var(--navy); }
.stat .l { color: var(--gris); font-size: .88rem; }

/* ---------- Landing de curso ---------- */
.curso-cabecera { background: var(--navy-2); color: var(--blanco); }
.curso-cabecera-inner { max-width: 1140px; margin: 0 auto; padding: 48px 20px; display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 40px; align-items: start; }
.miga { color: #8fa3c4; font-size: .85rem; margin-bottom: 14px; }
.miga a { color: #8fa3c4; }
.curso-cabecera h1 { font-size: 2.1rem; line-height: 1.2; margin-bottom: 10px; letter-spacing: -.02em; }
.curso-cabecera .sub { color: #b9c5da; font-size: 1.08rem; margin-bottom: 16px; }
.curso-cabecera .descripcion-hero { color: #b9c5da; font-size: .95rem; }
.curso-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.caja-compra { background: var(--blanco); color: var(--tinta); border-radius: var(--radio); padding: 22px; box-shadow: var(--sombra-hover); }
.caja-compra .portada-mini { aspect-ratio: 16/9; border-radius: 9px; background: var(--navy); color: var(--blanco); display: flex; align-items: center; justify-content: center; font-size: 2rem; font-weight: 800; overflow: hidden; margin-bottom: 16px; }
.caja-compra .portada-mini img { width: 100%; height: 100%; object-fit: cover; }
.caja-compra .precio-grande { font-size: 1.9rem; font-weight: 800; margin-bottom: 14px; color: var(--navy); }
.caja-compra .btn { width: 100%; text-align: center; }
.caja-compra ul.beneficios { list-style: none; margin-top: 16px; }
.caja-compra ul.beneficios li { padding: 5px 0; font-size: .9rem; color: var(--gris); }
.caja-compra ul.beneficios li::before { content: '✓  '; color: var(--ok); font-weight: 700; }

/* ---------- Temario (landing) ---------- */
.temario { padding: 36px 0 56px; max-width: 720px; }
.temario h2 { margin-bottom: 6px; font-size: 1.45rem; }
.temario .resumen-temario { color: var(--gris); font-size: .9rem; margin-bottom: 18px; }
.modulo { background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); margin-bottom: 12px; overflow: hidden; box-shadow: var(--sombra); }
.modulo-titulo { padding: 14px 18px; font-weight: 700; background: #fafbfd; border-bottom: 1px solid var(--borde); font-size: .98rem; }
.leccion-item { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 11px 18px; border-bottom: 1px solid var(--borde); font-size: .94rem; }
.leccion-item:last-child { border-bottom: none; }
.leccion-item .dur { color: var(--gris-claro); font-size: .84rem; font-variant-numeric: tabular-nums; }
.leccion-item .num { color: var(--gris-claro); font-weight: 600; margin-right: 6px; font-variant-numeric: tabular-nums; }

/* ---------- Instructor ---------- */
.instructor-bloque { background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); padding: 20px; margin-bottom: 22px; display: flex; gap: 18px; align-items: flex-start; box-shadow: var(--sombra); }
.instructor-foto { width: 76px; height: 76px; border-radius: 50%; background: var(--navy); color: var(--blanco); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; font-weight: 800; flex-shrink: 0; overflow: hidden; }
.instructor-foto img { width: 100%; height: 100%; object-fit: cover; }
.instructor-nombre { font-weight: 800; font-size: 1.15rem; color: var(--navy); margin: 2px 0 6px; }

/* ---------- Formularios ---------- */
.form-caja { max-width: 440px; margin: 44px auto; background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); padding: 30px; box-shadow: var(--sombra); }
.form-caja h1 { font-size: 1.4rem; margin-bottom: 18px; letter-spacing: -.01em; }
.campo { margin-bottom: 14px; }
.campo label { display: block; font-weight: 600; margin-bottom: 5px; font-size: .9rem; }
.campo input[type=text], .campo input[type=email], .campo input[type=password], .campo input[type=number],
.campo input[type=tel], .campo select, .campo textarea {
	width: 100%; padding: 10px 13px; border: 1.5px solid var(--borde); border-radius: 9px; font-size: .97rem; font-family: inherit; background: var(--blanco); color: var(--tinta);
}
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--azul); }
.campo textarea { min-height: 110px; resize: vertical; }
.campo-check { display: flex; gap: 8px; align-items: center; }
.campo-check label { margin: 0; }
.form-error { background: var(--error-suave); color: var(--error); padding: 10px 14px; border-radius: 9px; margin-bottom: 14px; font-size: .92rem; }
.form-pie { margin-top: 18px; }
.form-nota { text-align: center; color: var(--gris); font-size: .9rem; margin-top: 14px; }

/* ---------- Tablas ---------- */
.tabla-wrap { overflow-x: auto; background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); box-shadow: var(--sombra); }
table.tabla { width: 100%; border-collapse: collapse; font-size: .93rem; }
.tabla th { text-align: left; padding: 11px 16px; background: #fafbfd; border-bottom: 1px solid var(--borde); white-space: nowrap; color: var(--gris); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.tabla td { padding: 11px 16px; border-bottom: 1px solid var(--borde); vertical-align: middle; }
.tabla tr:last-child td { border-bottom: none; }

/* ---------- Admin ---------- */
.admin-titulo { display: flex; justify-content: space-between; align-items: center; margin: 28px 0 18px; flex-wrap: wrap; gap: 10px; }
.admin-titulo h1 { font-size: 1.5rem; letter-spacing: -.01em; }
.admin-nav { display: flex; gap: 8px; margin: 22px 0; flex-wrap: wrap; }
.admin-nav a { padding: 8px 18px; background: var(--blanco); border: 1px solid var(--borde); border-radius: 9px; color: var(--tinta); font-weight: 500; font-size: .92rem; }
.admin-nav a:hover { border-color: var(--azul); color: var(--azul); text-decoration: none; }
.aviso { background: var(--amarillo-suave); color: var(--amarillo); padding: 12px 16px; border-radius: 9px; margin-bottom: 18px; font-size: .93rem; }
.form-inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.form-inline input[type=text], .form-inline select { padding: 8px 11px; border: 1.5px solid var(--borde); border-radius: 8px; font-family: inherit; font-size: .92rem; }
.acciones { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.link-peligro { color: var(--error); }

/* ---------- Pie ---------- */
.pie { border-top: 1px solid var(--borde); padding: 26px 0; margin-top: 48px; color: var(--gris); font-size: .9rem; background: var(--blanco); }
.pie .logo-printica { color: var(--navy); font-size: 1.1rem; margin-right: 12px; }

/* =========================================================
   AULA (modo oscuro)
   ========================================================= */
body.aula { background: var(--navy-2); color: #dbe4f2; }
.aula-layout { display: grid; grid-template-columns: minmax(0, 1fr) 370px; min-height: 100vh; }
.aula-main { display: flex; flex-direction: column; }
.aula-topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 22px; background: #091120; flex-wrap: wrap; border-bottom: 1px solid var(--navy-3); }
.aula-topbar a { color: #7fb0ff; font-size: .92rem; }
.aula-topbar .logo-printica { font-size: 1.1rem; }
.aula-video { background: #000; aspect-ratio: 16/9; width: 100%; }
.aula-video iframe { width: 100%; height: 100%; border: 0; display: block; }
.aula-video .sin-video { height: 100%; display: flex; align-items: center; justify-content: center; color: var(--gris); flex-direction: column; gap: 8px; }
.aula-contenido { padding: 22px 26px 60px; }
.aula-contenido h1 { font-size: 1.4rem; margin-bottom: 4px; color: var(--blanco); letter-spacing: -.01em; }
.aula-contenido .descripcion { color: #b9c5da; margin: 14px 0 6px; white-space: pre-line; font-size: .96rem; }
.aula-acciones { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 16px 0 22px; }

/* Tabs del aula */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--navy-3); margin: 8px 0 18px; }
.tab-btn { background: none; border: none; color: #8fa3c4; font-family: inherit; font-size: .95rem; font-weight: 600; padding: 10px 16px; cursor: pointer; border-bottom: 2px solid transparent; }
.tab-btn.activa { color: var(--blanco); border-bottom-color: var(--azul); }
.tab-panel { display: none; }
.tab-panel.activa { display: block; }

/* Sidebar del aula */
.aula-sidebar { background: #091120; padding: 20px 18px; overflow-y: auto; border-left: 1px solid var(--navy-3); }
.aula-sidebar h2 { font-size: 1rem; color: var(--blanco); margin-bottom: 4px; }
.aula-sidebar .progreso-texto { color: #8fa3c4; font-size: .84rem; margin-bottom: 6px; }
.aula-sidebar .barra-progreso { background: var(--navy-3); }
.aula-modulo { margin-top: 18px; }
.aula-modulo-titulo { font-weight: 700; font-size: .8rem; color: #8fa3c4; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.aula-leccion { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 9px; color: #c7d2e4; font-size: .92rem; }
.aula-leccion:hover { background: var(--navy-3); text-decoration: none; }
.aula-leccion.activa { background: var(--azul); color: var(--blanco); }
.aula-leccion.activa .dur { color: #cfe0ff; }
.aula-leccion .tilde { width: 18px; height: 18px; border: 2px solid #3d4f70; border-radius: 50%; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; font-size: .68rem; }
.aula-leccion .tilde.hecho { background: var(--ok); border-color: var(--ok); color: var(--blanco); }
.aula-leccion .titulo-lec { flex: 1; min-width: 0; }
.aula-leccion .dur { color: #5a6f93; font-size: .8rem; font-variant-numeric: tabular-nums; }
.aula-quiz-link { display: block; padding: 9px 10px; color: #fbbf24; font-size: .9rem; border-radius: 9px; }
.aula-quiz-link:hover { background: var(--navy-3); text-decoration: none; }

/* Bloques oscuros (materiales, consultas) */
.bloque-oscuro { background: var(--navy-3); border: 1px solid #26375a; border-radius: var(--radio); padding: 18px; margin-bottom: 16px; }
.bloque-oscuro h3 { color: var(--blanco); margin-bottom: 10px; font-size: 1.02rem; }
.material-item { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px solid #26375a; }
.material-item:last-child { border-bottom: none; }
.material-item a { color: #7fb0ff; }
.comentario { padding: 12px 0; border-bottom: 1px solid #26375a; }
.comentario:last-child { border-bottom: none; }
.comentario .autor { font-weight: 700; color: var(--blanco); font-size: .92rem; }
.comentario .autor .chip { margin-left: 6px; }
.comentario .fecha-c { color: #5a6f93; font-size: .8rem; margin-left: 8px; }
.comentario p { color: #b9c5da; margin-top: 4px; font-size: .94rem; }
.comentario .respuestas { margin-left: 22px; margin-top: 8px; border-left: 2px solid #26375a; padding-left: 14px; }
.form-comentario textarea { width: 100%; background: #091120; color: #dbe4f2; border: 1.5px solid #26375a; border-radius: 9px; padding: 11px; font-family: inherit; min-height: 80px; font-size: .94rem; }
.form-comentario textarea:focus { outline: none; border-color: var(--azul); }
.form-comentario button { margin-top: 8px; }

/* ---------- Quiz ---------- */
.quiz-caja { max-width: 720px; margin: 30px auto; padding: 0 20px 60px; }
.quiz-pregunta { background: var(--navy-3); border: 1px solid #26375a; border-radius: var(--radio); padding: 18px; margin-bottom: 14px; }
.quiz-pregunta h3 { color: var(--blanco); margin-bottom: 10px; font-size: 1rem; }
.quiz-opcion { display: flex; gap: 10px; align-items: center; padding: 9px 11px; border-radius: 9px; cursor: pointer; color: #c7d2e4; font-size: .95rem; }
.quiz-opcion:hover { background: #26375a; }
.quiz-resultado { border-radius: var(--radio); padding: 18px; margin-bottom: 20px; font-weight: 600; }
.quiz-resultado.aprobado { background: var(--ok-suave); color: var(--ok); }
.quiz-resultado.desaprobado { background: var(--error-suave); color: var(--error); }

/* Formularios claros dentro del admin de quiz */
.quiz-pregunta.clara { background: #fafbfd; border: 1px solid var(--borde); }
.quiz-pregunta.clara h3 { color: var(--tinta); }

/* ---------- Certificado ---------- */
.certificado { max-width: 800px; margin: 40px auto; background: var(--blanco); border: 10px solid var(--navy); padding: 60px 50px; text-align: center; color: var(--tinta); }
.certificado .titulo-cert { font-size: 1rem; letter-spacing: .22em; text-transform: uppercase; color: var(--gris); }
.certificado .nombre { font-size: 2.2rem; font-weight: 800; margin: 18px 0 6px; color: var(--navy); }
.certificado .curso-nombre { font-size: 1.4rem; font-weight: 700; margin: 14px 0; color: var(--azul); }
.certificado .codigo { margin-top: 30px; color: var(--gris); font-size: .85rem; }
.certificado .logo-printica { color: var(--navy); font-size: 1.3rem; }
.cert-acciones { text-align: center; margin: 20px 0 50px; }
@media print {
	.cert-acciones, .topbar, .pie { display: none !important; }
	body { background: var(--blanco); }
	.certificado { margin: 0 auto; border-width: 6px; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
	.aula-layout { grid-template-columns: 1fr; }
	.aula-sidebar { border-left: none; border-top: 1px solid var(--navy-3); }
	.curso-cabecera-inner { grid-template-columns: 1fr; }
	.hero h1 { font-size: 2rem; }
}