/* =========================================================
   IE PARAÍSO FLORIDO · Hoja de estilos principal
   Estilo: moderno universitario (Moodle + Coursera)
   Colores institucionales: azul, blanco, gris elegante
========================================================= */

/* ===== Variables de diseño ===== */
:root {
    --azul: #0d3b75;
    --azul-osc: #0a2c58;
    --azul-claro: #1456a0;
    --acento: #ffd54f;
    --gris-bg: #f4f7fb;
    --gris-card: #ffffff;
    --gris-borde: #e4e9f2;
    --texto: #2b3340;
    --texto-suave: #6b7585;
    --sombra: 0 10px 30px rgba(13, 59, 117, 0.08);
    --sombra-fuerte: 0 18px 45px rgba(13, 59, 117, 0.15);
    --radio: 16px;
    --trans: 0.3s ease;
}

/* ===== Reset básico ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--gris-bg);
    color: var(--texto);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, .nav-brand-title, .hero-title, .stat-num {
    font-family: 'Poppins', sans-serif;
}

img { max-width: 100%; display: block; }

a { text-decoration: none; color: inherit; cursor: pointer; }

.container { width: min(1180px, 92%); margin: 0 auto; }

.section-pad { padding: 80px 0; }

/* ===== Botones ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    border-radius: 50px;
    padding: 14px 30px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--trans);
}
.btn-primary { background: var(--azul); color: #fff; }
.btn-primary:hover { background: var(--azul-claro); transform: translateY(-3px); box-shadow: var(--sombra-fuerte); }
.btn-ghost { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, 0.7); }
.btn-ghost:hover { background: #fff; color: var(--azul); }
.btn-acento { background: var(--acento); color: #1a1a1a; }
.btn-acento:hover { background: #ffca28; transform: translateY(-2px); }
.btn.full { width: 100%; justify-content: center; }
.btn-sm { padding: 9px 18px; font-size: 13px; }

/* Encabezados de sección reutilizables */
.eyebrow {
    display: inline-block;
    color: var(--azul-claro);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
}
.section-head { text-align: center; max-width: 640px; margin: 0 auto 50px; }
.section-head h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); color: var(--azul); margin-bottom: 12px; }
.section-head p { color: var(--texto-suave); font-size: 17px; }

/* =========================================================
   NAVBAR
========================================================= */
.navbar {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 59, 117, 0.97);
    backdrop-filter: blur(8px);
    transition: var(--trans);
}
.nav-container {
    width: min(1280px, 95%);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    transition: padding var(--trans);
}
/* Navbar compacto al hacer scroll */
.navbar.scrolled { box-shadow: 0 6px 24px rgba(8, 30, 60, 0.25); }
.navbar.scrolled .nav-container { padding: 6px 0; }
.navbar.scrolled .nav-brand img { width: 46px; }

.nav-brand { display: flex; align-items: center; gap: 14px; }
.nav-brand img { width: 56px; transition: width var(--trans); }
.nav-brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.nav-brand-title { color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 0.5px; }
.nav-brand-sub { color: var(--acento); font-size: 12px; font-weight: 600; letter-spacing: 1px; }

.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-link {
    color: #fff;
    font-weight: 500;
    font-size: 15px;
    padding: 8px 14px;
    border-radius: 8px;
    position: relative;
    transition: var(--trans);
}
.nav-link:not(.nav-cta):hover { color: var(--acento); }
.nav-link.active:not(.nav-cta) { color: var(--acento); }
.nav-link.active:not(.nav-cta)::after {
    content: "";
    position: absolute;
    left: 14px; right: 14px; bottom: 2px;
    height: 2px;
    background: var(--acento);
}
.nav-cta {
    background: var(--acento);
    color: #1a1a1a !important;
    font-weight: 600;
    margin-left: 10px;
}
.nav-cta:hover { background: #ffca28; transform: translateY(-2px); }

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 26px;
    cursor: pointer;
}

/* =========================================================
   SISTEMA DE SECCIONES (SPA)
   Transición: la sección saliente se desvanece (.leaving) y la
   entrante aparece con un fade + leve deslizamiento (.active).
========================================================= */
.section { display: none; }
.section.active {
    display: block;
    animation: sectionIn 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}
.section.leaving {
    display: block;
    animation: sectionOut 0.22s ease forwards;
    pointer-events: none;
}

@keyframes sectionIn {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes sectionOut {
    from { opacity: 1; transform: translateY(0); }
    to   { opacity: 0; transform: translateY(-16px); }
}

/* Accesibilidad: desactivar movimiento si el usuario lo prefiere */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* Banner superior para páginas internas */
.page-banner {
    background: linear-gradient(rgba(10, 44, 88, 0.78), rgba(10, 44, 88, 0.78)),
                url('img/banner/banner1.png') center/cover no-repeat;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
}
.page-banner h1 { color: #fff; font-size: clamp(2rem, 5vw, 3.25rem); }

/* =========================================================
   HERO (INICIO)
========================================================= */
.hero {
    height: 100vh;
    min-height: 600px;
    background: url('img/banner/banner2.jpg') center/cover no-repeat fixed; /* parallax ligero */
    margin-top: 0;
}
.hero-overlay {
    height: 100%;
    background: linear-gradient(rgba(8, 30, 60, 0.55), rgba(13, 59, 117, 0.85));
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
}
.hero-content { text-align: center; color: #fff; width: min(820px, 90%); }
.hero-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 7px 18px;
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 22px;
}
.hero-title { font-size: clamp(2.4rem, 7vw, 4.5rem); font-weight: 800; line-height: 1.1; text-shadow: 0 4px 20px rgba(0,0,0,0.4); }
.hero-subtitle { font-size: clamp(1rem, 2.4vw, 1.3rem); margin: 18px auto 34px; max-width: 620px; opacity: 0.95; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Tarjetas destacadas */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: -70px;
    position: relative;
    z-index: 10;
    margin-bottom: 60px;
}
.feature-card {
    background: var(--gris-card);
    border-radius: var(--radio);
    padding: 40px 28px;
    text-align: center;
    box-shadow: var(--sombra);
    transition: var(--trans);
}
.feature-card:hover { transform: translateY(-10px); box-shadow: var(--sombra-fuerte); }
.feature-card i { font-size: 46px; color: var(--azul); margin-bottom: 18px; }
.feature-card h3 { font-size: 20px; margin-bottom: 10px; color: var(--azul); }
.feature-card p { color: var(--texto-suave); }

/* Franja de estadísticas */
.stats-band { background: var(--azul); padding: 50px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat { color: #fff; }
.stat-num { display: block; font-size: 42px; font-weight: 800; color: var(--acento); }
.stat-label { font-size: 15px; opacity: 0.9; }

/* =========================================================
   NOSOTROS
========================================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 80px;
}
.about-img img { border-radius: var(--radio); box-shadow: var(--sombra-fuerte); }
.about-text h2 { font-size: 34px; color: var(--azul); margin-bottom: 18px; }
.about-text p { color: var(--texto-suave); margin-bottom: 16px; }

.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 80px; }
.mv-card {
    background: var(--gris-card);
    border-radius: var(--radio);
    padding: 40px;
    box-shadow: var(--sombra);
    border-top: 4px solid var(--azul);
    transition: var(--trans);
}
.mv-card:hover { transform: translateY(-6px); box-shadow: var(--sombra-fuerte); }
.mv-card i { font-size: 36px; color: var(--azul); margin-bottom: 16px; }
.mv-card h3 { font-size: 24px; color: var(--azul); margin-bottom: 12px; }
.mv-card p { color: var(--texto-suave); }

.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.value-item {
    background: var(--gris-card);
    border-radius: var(--radio);
    padding: 32px 22px;
    text-align: center;
    box-shadow: var(--sombra);
    transition: var(--trans);
}
.value-item:hover { transform: translateY(-8px); }
.value-item i {
    font-size: 30px;
    color: var(--azul);
    background: #eaf1fb;
    width: 70px; height: 70px;
    line-height: 70px;
    border-radius: 50%;
    margin-bottom: 16px;
}
.value-item h4 { font-size: 18px; margin-bottom: 8px; color: var(--azul); }
.value-item p { color: var(--texto-suave); font-size: 14px; }

/* =========================================================
   GALERÍA
========================================================= */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gallery-item {
    overflow: hidden;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    cursor: pointer;
    position: relative;
}
.gallery-item img { width: 100%; height: 260px; object-fit: cover; transition: 0.5s ease; }
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item::after {
    content: "\f00e"; /* lupa */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    background: rgba(13, 59, 117, 0.5);
    opacity: 0;
    transition: var(--trans);
}
.gallery-item:hover::after { opacity: 1; }

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.9);
    align-items: center;
    justify-content: center;
    padding: 30px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 90%; max-height: 85vh; border-radius: 10px; }
.lightbox-close {
    position: absolute;
    top: 24px; right: 34px;
    color: #fff;
    font-size: 40px;
    cursor: pointer;
}

/* =========================================================
   NOTICIAS
========================================================= */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
    background: var(--gris-card);
    border-radius: var(--radio);
    overflow: hidden;
    box-shadow: var(--sombra);
    transition: var(--trans);
    display: flex;
    flex-direction: column;
}
.news-card:hover { transform: translateY(-8px); box-shadow: var(--sombra-fuerte); }
.news-card img { height: 190px; object-fit: cover; }
.news-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-date { font-size: 13px; color: var(--azul-claro); font-weight: 600; margin-bottom: 8px; }
.news-date i { margin-right: 6px; }
.news-card h3 { font-size: 19px; margin-bottom: 10px; color: var(--azul); }
.news-card p { color: var(--texto-suave); font-size: 15px; margin-bottom: 16px; flex: 1; }
.news-link { color: var(--azul-claro); font-weight: 600; font-size: 14px; }
.news-link:hover { text-decoration: underline; }

/* =========================================================
   CONTACTO
========================================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; }
.contact-info h2 { font-size: 32px; color: var(--azul); margin-bottom: 26px; }
.contact-list { list-style: none; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 24px; }
.contact-list i {
    color: var(--azul);
    background: #eaf1fb;
    width: 48px; height: 48px;
    line-height: 48px;
    text-align: center;
    border-radius: 12px;
    font-size: 18px;
    flex-shrink: 0;
}
.contact-list strong { display: block; color: var(--texto); }
.contact-list span { color: var(--texto-suave); }

.contact-form-wrap {
    background: var(--gris-card);
    padding: 40px;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
}
.contact-form-wrap h3 { font-size: 22px; color: var(--azul); margin-bottom: 22px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 7px; }
.field input, .field textarea {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--gris-borde);
    border-radius: 12px;
    font-family: inherit;
    font-size: 15px;
    transition: var(--trans);
    resize: vertical;
}
.field input:focus, .field textarea:focus {
    outline: none;
    border-color: var(--azul);
    box-shadow: 0 0 0 3px rgba(13, 59, 117, 0.1);
}
.form-msg { margin-top: 14px; font-weight: 600; font-size: 14px; min-height: 20px; }
.form-msg.ok { color: #1a8d4b; }
.form-msg.err { color: #c0392b; }

/* =========================================================
   AULA VIRTUAL
========================================================= */
.aula-wrap { min-height: 100vh; padding-top: 80px; background: var(--gris-bg); }

/* --- Login --- */
.aula-login {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, rgba(13,59,117,0.92), rgba(20,86,160,0.92)),
                url('img/banner/banner2.jpg') center/cover no-repeat;
}
.login-card {
    background: #fff;
    border-radius: 20px;
    padding: 44px 40px;
    width: min(440px, 100%);
    box-shadow: var(--sombra-fuerte);
}
.login-card .login-logo { width: 70px; margin: 0 auto 16px; }
.login-card h2 { text-align: center; color: var(--azul); font-size: 26px; }
.login-card .login-sub { text-align: center; color: var(--texto-suave); margin-bottom: 26px; font-size: 15px; }
.login-error { color: #c0392b; font-size: 14px; font-weight: 600; min-height: 20px; margin-bottom: 6px; text-align: center; }
.login-hint {
    margin-top: 22px;
    background: var(--gris-bg);
    border-radius: 12px;
    padding: 14px 16px;
    font-size: 13px;
    color: var(--texto-suave);
}
.login-hint strong { color: var(--azul); }
.login-hint code { background: #e4ecf7; padding: 1px 6px; border-radius: 5px; color: var(--azul); }

/* --- Layout del panel (sidebar + contenido) --- */
.aula-panel { display: grid; grid-template-columns: 270px 1fr; min-height: calc(100vh - 80px); }
.aula-side {
    background: var(--azul);
    color: #fff;
    padding: 30px 22px;
    display: flex;
    flex-direction: column;
}
.aula-user { text-align: center; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.15); margin-bottom: 24px; }
.aula-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: var(--acento);
    color: var(--azul);
    font-size: 30px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 12px;
    font-weight: 700;
}
.aula-user h3 { font-size: 18px; }
.aula-role { font-size: 13px; color: var(--acento); text-transform: capitalize; }
.aula-nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.aula-nav button {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.85);
    text-align: left;
    padding: 12px 16px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    cursor: pointer;
    transition: var(--trans);
    display: flex; align-items: center; gap: 12px;
}
.aula-nav button:hover { background: rgba(255,255,255,0.1); color: #fff; }
.aula-nav button.active { background: var(--acento); color: var(--azul); font-weight: 600; }
.aula-logout {
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    padding: 12px;
    border-radius: 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    transition: var(--trans);
}
.aula-logout:hover { background: #c0392b; }

.aula-content { padding: 40px; overflow-y: auto; }
.aula-content h1 { font-size: 28px; color: var(--azul); margin-bottom: 6px; }
.aula-content .lead { color: var(--texto-suave); margin-bottom: 30px; }

/* Tarjetas y tablas del aula */
.aula-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; }
.course-card {
    background: #fff;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    overflow: hidden;
    transition: var(--trans);
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--sombra-fuerte); }
.course-card .course-top { height: 90px; background: var(--azul); display: flex; align-items: center; justify-content: center; }
.course-card .course-top i { font-size: 38px; color: var(--acento); }
.course-card .course-info { padding: 20px; }
.course-card h3 { font-size: 17px; color: var(--azul); margin-bottom: 6px; }
.course-card p { font-size: 13px; color: var(--texto-suave); margin-bottom: 14px; }

.aula-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); }
.aula-table th, .aula-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--gris-borde); font-size: 14px; }
.aula-table th { background: #eef3fa; color: var(--azul); font-weight: 600; }
.aula-table tr:last-child td { border-bottom: none; }

.badge { padding: 4px 12px; border-radius: 50px; font-size: 12px; font-weight: 600; }
.badge.ok { background: #dff5e6; color: #1a8d4b; }
.badge.pend { background: #fdebd0; color: #b9770e; }
.badge.late { background: #fce4e4; color: #c0392b; }

/* Tarjeta-panel genérica */
.panel-box { background: #fff; border-radius: var(--radio); box-shadow: var(--sombra); padding: 28px; margin-bottom: 26px; }
.panel-box h3 { color: var(--azul); margin-bottom: 16px; font-size: 19px; }
.panel-box .field input, .panel-box .field textarea, .panel-box .field select {
    width: 100%; padding: 12px 14px; border: 1px solid var(--gris-borde); border-radius: 10px; font-family: inherit; font-size: 14px;
}
.panel-box .field select { background: #fff; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; margin-bottom: 30px; }
.mini-stat { background: #fff; border-radius: var(--radio); box-shadow: var(--sombra); padding: 24px; }
.mini-stat i { font-size: 26px; color: var(--azul); margin-bottom: 10px; }
.mini-stat .num { font-size: 30px; font-weight: 800; color: var(--azul); font-family: 'Poppins', sans-serif; }
.mini-stat .lbl { color: var(--texto-suave); font-size: 14px; }

.aula-hidden { display: none; }

/* =========================================================
   FOOTER
========================================================= */
.footer { background: var(--azul-osc); color: rgba(255,255,255,0.85); padding-top: 56px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.4fr; gap: 40px; padding-bottom: 40px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { width: 46px; }
.footer-brand span { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 18px; color: #fff; }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 17px; }
.footer-col a { display: block; margin-bottom: 10px; transition: var(--trans); }
.footer-col a:hover { color: var(--acento); padding-left: 4px; }
.footer-col p { margin-bottom: 10px; font-size: 14px; }
.footer-col p i { color: var(--acento); margin-right: 8px; }
.footer-bottom { text-align: center; padding: 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 14px; }

/* =========================================================
   RESPONSIVE
========================================================= */

/* ----- Tablet horizontal / pantallas medianas ----- */
@media (max-width: 1100px) {
    .cards-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ----- Tablet / menú colapsado ----- */
@media (max-width: 992px) {
    .nav-toggle { display: block; z-index: 1001; position: relative; }
    .nav-menu {
        position: fixed;
        top: 0; right: 0;
        width: min(300px, 82vw);
        height: 100vh;
        background: var(--azul);
        flex-direction: column;
        align-items: stretch;
        padding: 90px 20px 24px;   /* deja espacio para el navbar, sin importar su altura */
        gap: 6px;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
        box-shadow: -8px 0 30px rgba(0,0,0,0.25);
        overflow-y: auto;
        z-index: 999;              /* por debajo del navbar (1000) */
    }
    .nav-menu.open { transform: translateX(0); }
    .nav-link { padding: 14px 16px; font-size: 16px; }
    .nav-cta { margin-left: 0; text-align: center; justify-content: center; margin-top: 10px; }

    .cards-grid { grid-template-columns: 1fr; max-width: 460px; margin-left: auto; margin-right: auto; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .about-grid, .mv-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
    .gallery-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }

    .hero { background-attachment: scroll; } /* sin parallax en móvil (mejor rendimiento) */
    .section-pad { padding: 56px 0; }
    .about-grid { margin-bottom: 56px; }
    .mv-grid { margin-bottom: 56px; }

    /* Aula: sidebar arriba, navegación horizontal */
    .aula-panel { grid-template-columns: 1fr; }
    .aula-side { flex-direction: column; padding: 22px 18px; }
    .aula-nav { flex-direction: row; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
    .aula-nav button { flex: 1 1 auto; justify-content: center; }
    .aula-content { padding: 24px; }
}

/* ----- Móvil ----- */
@media (max-width: 600px) {
    .values-grid, .gallery-grid, .news-grid, .stats-grid { grid-template-columns: 1fr; }
    .nav-brand-text { display: none; }      /* solo el logo en móviles pequeños */
    .nav-brand img { width: 44px; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    .hero-buttons { flex-direction: column; }
    .contact-form-wrap, .login-card { padding: 26px 20px; }
    .page-banner { height: 240px; }
    .aula-table { display: block; overflow-x: auto; white-space: nowrap; } /* tablas con scroll horizontal */
}

/* ----- Móvil muy pequeño ----- */
@media (max-width: 380px) {
    .stat-num { font-size: 34px; }
    .feature-card { padding: 32px 22px; }
}

/* =========================================================
   MEJORAS DINÁMICAS · v2
   (logo, hero, reveal, roles, aula universitaria)
========================================================= */

/* ----- Logo / escudo en el hero ----- */
.hero-logo {
    width: 118px; height: 118px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 12px 40px rgba(0,0,0,0.35);
    border: 4px solid rgba(255,255,255,0.6);
    animation: floatLogo 4s ease-in-out infinite;
}
.hero-logo img { width: 88px; height: 88px; object-fit: contain; }
@keyframes floatLogo {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
}
.hero-tag i { color: #6ee7a8; margin-right: 6px; }

/* Indicador de scroll */
.hero-scroll {
    position: absolute;
    bottom: 26px; left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.85);
    font-size: 22px;
    animation: bounceDown 1.8s ease-in-out infinite;
}
.hero { position: relative; }
@keyframes bounceDown {
    0%, 100% { transform: translate(-50%, 0); opacity: 0.6; }
    50%      { transform: translate(-50%, 10px); opacity: 1; }
}

/* ----- Reveal al hacer scroll ----- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Escudo en el navbar redondeado */
.nav-brand img { border-radius: 50%; background: #fff; padding: 3px; }
.footer-brand img { border-radius: 50%; background: #fff; padding: 3px; }

/* ----- Tarjetas de roles (home) ----- */
.roles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.role-card {
    background: var(--gris-card);
    border-radius: var(--radio);
    padding: 34px 28px;
    box-shadow: var(--sombra);
    transition: var(--trans);
    border: 1px solid var(--gris-borde);
}
.role-card:hover { transform: translateY(-8px); box-shadow: var(--sombra-fuerte); }
.role-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; color: #fff;
    margin-bottom: 18px;
}
.role-icon.est { background: linear-gradient(135deg, #1456a0, #0d3b75); }
.role-icon.doc { background: linear-gradient(135deg, #1a8d4b, #0f6e39); }
.role-icon.dir { background: linear-gradient(135deg, #b9770e, #8a5807); }
.role-card h3 { font-size: 21px; color: var(--azul); margin-bottom: 10px; }
.role-card > p { color: var(--texto-suave); margin-bottom: 16px; font-size: 15px; }
.role-list { list-style: none; }
.role-list li { font-size: 14px; color: var(--texto); margin-bottom: 9px; display: flex; align-items: center; gap: 9px; }
.role-list li i { color: #1a8d4b; font-size: 13px; }
.platform-cta { text-align: center; margin-top: 44px; }

/* =========================================================
   AULA VIRTUAL · COMPONENTES UNIVERSITARIOS
========================================================= */

/* Botón de acceso al sistema real desde el login */
.login-real {
    margin-top: 18px;
    text-align: center;
}
.login-real a {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13.5px; font-weight: 600; color: var(--azul-claro);
    border: 1px dashed var(--azul-claro);
    padding: 10px 16px; border-radius: 12px;
    transition: var(--trans);
}
.login-real a:hover { background: #eaf1fb; }
.login-roles { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 16px 0 4px; }
.login-role-btn {
    background: var(--gris-bg); border: 1px solid var(--gris-borde);
    border-radius: 10px; padding: 8px 12px; font-family: inherit; font-size: 12.5px;
    cursor: pointer; color: var(--azul); font-weight: 600; transition: var(--trans);
    display: inline-flex; align-items: center; gap: 6px;
}
.login-role-btn:hover { background: #eaf1fb; border-color: var(--azul-claro); }

/* Cabecera del contenido del aula */
.aula-head {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 14px; margin-bottom: 26px;
}
.aula-head .lead { margin-bottom: 0; }
.aula-badge-link {
    display: inline-flex; align-items: center; gap: 8px;
    background: #eaf1fb; color: var(--azul); font-weight: 600; font-size: 13px;
    padding: 8px 14px; border-radius: 10px; transition: var(--trans);
}
.aula-badge-link:hover { background: var(--azul); color: #fff; }

/* Saludo de dashboard */
.dash-hero {
    background: linear-gradient(120deg, var(--azul), var(--azul-claro));
    color: #fff; border-radius: var(--radio); padding: 28px 30px; margin-bottom: 26px;
    position: relative; overflow: hidden;
}
.dash-hero::after {
    content: "\f19d"; font-family: "Font Awesome 6 Free"; font-weight: 900;
    position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
    font-size: 90px; opacity: 0.12;
}
.dash-hero h1 { color: #fff; margin-bottom: 6px; }
.dash-hero p { opacity: 0.92; }

/* Banner de clase en vivo */
.live-banner {
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
    background: linear-gradient(120deg, #0f6e39, #1a8d4b);
    color: #fff; border-radius: var(--radio); padding: 18px 22px; margin-bottom: 26px;
    box-shadow: var(--sombra);
}
.live-dot {
    width: 12px; height: 12px; border-radius: 50%; background: #ff5252;
    box-shadow: 0 0 0 0 rgba(255,82,82,0.7); animation: pulseLive 1.4s infinite;
}
@keyframes pulseLive {
    0%   { box-shadow: 0 0 0 0 rgba(255,82,82,0.7); }
    70%  { box-shadow: 0 0 0 12px rgba(255,82,82,0); }
    100% { box-shadow: 0 0 0 0 rgba(255,82,82,0); }
}
.live-banner .live-info { flex: 1; min-width: 180px; }
.live-banner .live-info strong { display: block; font-size: 16px; }
.live-banner .live-info span { font-size: 13px; opacity: 0.9; }
.btn-join {
    background: #fff; color: #0f6e39; border: none; border-radius: 50px;
    padding: 11px 22px; font-family: 'Poppins', sans-serif; font-weight: 600;
    cursor: pointer; display: inline-flex; align-items: center; gap: 8px; transition: var(--trans);
}
.btn-join:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.25); }

/* Grid de widgets del dashboard */
.widget-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; margin-bottom: 26px; }
.widget {
    background: #fff; border-radius: var(--radio); box-shadow: var(--sombra);
    padding: 24px; border-top: 4px solid var(--azul);
}
.widget.green { border-top-color: #1a8d4b; }
.widget.amber { border-top-color: #b9770e; }
.widget h4 { color: var(--azul); font-size: 15px; margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.widget h4 i { font-size: 15px; }

/* Anillo de asistencia */
.att-ring {
    --pct: 90;
    width: 130px; height: 130px; border-radius: 50%;
    background: conic-gradient(var(--acento) calc(var(--pct) * 1%), #e4e9f2 0);
    display: flex; align-items: center; justify-content: center;
    margin: 6px auto 4px; position: relative;
}
.att-ring::before { content: ""; position: absolute; inset: 12px; background: #fff; border-radius: 50%; }
.att-ring span { position: relative; font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 26px; color: var(--azul); }
.att-legend { display: flex; justify-content: center; gap: 16px; font-size: 12.5px; color: var(--texto-suave); margin-top: 4px; }
.att-legend b { color: var(--texto); }

/* Lista de items (agenda / próximas) */
.item-list { list-style: none; }
.item-list li {
    display: flex; align-items: center; gap: 14px; padding: 12px 0;
    border-bottom: 1px solid var(--gris-borde);
}
.item-list li:last-child { border-bottom: none; }
.item-ico {
    width: 40px; height: 40px; border-radius: 11px; flex-shrink: 0;
    background: #eaf1fb; color: var(--azul);
    display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.item-ico.green { background: #dff5e6; color: #1a8d4b; }
.item-ico.amber { background: #fdebd0; color: #b9770e; }
.item-txt { flex: 1; }
.item-txt strong { display: block; font-size: 14.5px; color: var(--texto); }
.item-txt span { font-size: 12.5px; color: var(--texto-suave); }

/* Zona para subir trabajos (dropzone) */
.dropzone {
    border: 2px dashed var(--azul-claro); border-radius: 14px;
    background: #f3f8ff; padding: 26px; text-align: center;
    cursor: pointer; transition: var(--trans);
}
.dropzone:hover, .dropzone.drag { background: #e7f1ff; border-color: var(--azul); }
.dropzone i { font-size: 34px; color: var(--azul-claro); margin-bottom: 10px; }
.dropzone p { color: var(--texto-suave); font-size: 14px; }
.dropzone p strong { color: var(--azul); }
.dropzone input[type=file] { display: none; }
.file-chip {
    display: inline-flex; align-items: center; gap: 10px;
    background: #eaf1fb; border-radius: 10px; padding: 8px 14px; margin-top: 12px;
    font-size: 13.5px; color: var(--azul); font-weight: 600;
}
.file-chip i { color: var(--azul-claro); }

/* Pestañas dentro del panel */
.act-card {
    background: #fff; border-radius: var(--radio); box-shadow: var(--sombra);
    padding: 22px 24px; margin-bottom: 18px; border-left: 4px solid var(--azul);
    display: flex; gap: 18px; align-items: flex-start; flex-wrap: wrap;
}
.act-card .act-main { flex: 1; min-width: 220px; }
.act-card .act-course { font-size: 12px; font-weight: 700; color: var(--azul-claro); text-transform: uppercase; letter-spacing: 1px; }
.act-card h3 { font-size: 17px; color: var(--texto); margin: 4px 0 6px; }
.act-card p { font-size: 13.5px; color: var(--texto-suave); margin-bottom: 8px; }
.act-meta { font-size: 12.5px; color: var(--texto-suave); display: flex; gap: 16px; flex-wrap: wrap; }
.act-meta i { color: var(--azul-claro); margin-right: 4px; }
.act-actions { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }

/* Cinta de cursos con color */
.course-card .course-top.c0 { background: linear-gradient(135deg, #1456a0, #0d3b75); }
.course-card .course-top.c1 { background: linear-gradient(135deg, #1a8d4b, #0f6e39); }
.course-card .course-top.c2 { background: linear-gradient(135deg, #b9770e, #8a5807); }
.course-card .course-top.c3 { background: linear-gradient(135deg, #6d28d9, #4c1d95); }
.course-card .course-top.c4 { background: linear-gradient(135deg, #c0392b, #8e2a20); }

/* Toast de aviso */
.aula-toast {
    position: fixed; bottom: 24px; right: 24px; z-index: 3000;
    background: var(--azul); color: #fff; padding: 14px 20px; border-radius: 12px;
    box-shadow: var(--sombra-fuerte); font-size: 14px; font-weight: 600;
    display: flex; align-items: center; gap: 10px;
    transform: translateY(120%); opacity: 0; transition: all 0.4s cubic-bezier(0.22,0.61,0.36,1);
}
.aula-toast.show { transform: translateY(0); opacity: 1; }
.aula-toast i { color: var(--acento); }

/* Responsive de los nuevos bloques */
@media (max-width: 992px) {
    .roles-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
}
@media (max-width: 600px) {
    .hero-logo { width: 92px; height: 92px; }
    .hero-logo img { width: 68px; height: 68px; }
    .act-card { flex-direction: column; }
    .act-actions { flex-direction: row; align-items: stretch; width: 100%; }
    .act-actions .btn { flex: 1; justify-content: center; }
}