/* /assets/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,700;0,9..144,900;1,9..144,400&family=DM+Sans:wght@300;400;500;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* MODO CLARO (Default) */
    --bg-color: #faf8ff;
    --text-main: #2d0a6e;
    --text-muted: #6b4f9e;
    --card-bg: rgba(255, 255, 255, 0.85);
    --border-color: rgba(168, 85, 247, 0.2);
    --nav-bg: rgba(255, 255, 255, 0.9);
    
    /* Colores de marca (se mantienen en ambos modos) */
    --purple-mid: #6b21e8;
    --purple-bright: #a855f7;
    --purple-light: #e9d5ff;
    --purple-glow: #c084fc;
    --fire-orange: #ff9800;
}

[data-theme="dark"] {
    /* MODO OSCURO */
    --bg-color: #0b0514; /* Morado casi negro */
    --text-main: #e9d5ff; /* Lila clarito */
    --text-muted: #a78bfa;
    --card-bg: rgba(20, 10, 35, 0.85);
    --border-color: rgba(168, 85, 247, 0.4);
    --nav-bg: rgba(11, 5, 20, 0.95);
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'DM Sans', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* Textura de ruido de fondo */
body::before {
    content: ''; position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    background-size: 200px 200px; pointer-events: none; z-index: 100;
}

/* ─── NAVEGACIÓN (HEADER) ─── */
.main-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s, border-color 0.3s;
}

.logo-link {
    text-decoration: none;
    font-family: 'Fraunces', serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 5px;
}

.logo-link span {
    background: linear-gradient(135deg, var(--purple-mid), var(--purple-bright));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Racha (Streak) */
.streak-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    color: var(--fire-orange);
    background: rgba(255, 152, 0, 0.1);
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 0.95rem;
}

/* Botones Icono (Tema, Idioma) */
.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}
.icon-btn:hover {
    background: var(--border-color);
}

/* Perfil de Usuario */
.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    cursor: pointer;
}
.user-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--purple-mid), var(--purple-bright));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* ─── MAIN CONTAINER Y FOOTER ─── */
.main-content {
    flex: 1; /* Empuja el footer hacia abajo */
    padding: 2rem;
    position: relative;
    z-index: 10;
}

.main-footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 10;
}
/* ─── DASHBOARD Y TARJETAS DE CURSOS ─── */
.dashboard-header {
    margin-bottom: 2.5rem;
    text-align: center;
}

.dashboard-header h1 {
    font-family: 'Fraunces', serif;
    font-size: 2.5rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.dashboard-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.course-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
    backdrop-filter: blur(12px);
    text-decoration: none;
    color: inherit;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(107, 33, 232, 0.15);
    border-color: var(--purple-bright);
}

.course-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: linear-gradient(135deg, var(--purple-light), rgba(255,255,255,0.5));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.2rem;
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .course-icon {
    background: linear-gradient(135deg, rgba(107, 33, 232, 0.3), rgba(0,0,0,0.2));
}

.course-title {
    font-family: 'Fraunces', serif;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.course-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex-grow: 1; /* Empuja el botón hacia abajo si hay espacio extra */
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    margin-top: auto;
}

.course-status {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: 999px;
}

.status-new {
    background: rgba(168, 85, 247, 0.15);
    color: var(--purple-bright);
}

.btn-start {
    background: var(--text-main);
    color: var(--bg-color);
    border: none;
    padding: 8px 16px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: filter 0.2s;
}

.course-card:hover .btn-start {
    background: linear-gradient(135deg, var(--purple-mid), var(--purple-bright));
    color: white;
}
/* ─── VISTA DEL CURSO (VIEW.PHP) ─── */
.course-hero {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 50px rgba(107, 33, 232, 0.05);
}

.course-hero .course-icon {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem auto;
}

.course-hero h1 {
    font-family: 'Fraunces', serif;
    font-size: 2.8rem;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.course-hero p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 2rem auto;
    line-height: 1.6;
}

.course-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--purple-mid), var(--purple-bright));
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 999px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s, filter 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
}

.course-action-btn:hover {
    transform: translateY(-3px);
    filter: brightness(1.1);
    box-shadow: 0 10px 25px rgba(168, 85, 247, 0.4);
}

/* Temario / Currículum */
.curriculum-section h2 {
    font-family: 'Fraunces', serif;
    font-size: 2rem;
    color: var(--text-main);
    margin-bottom: 1.5rem;
}

.block-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.block-header {
    background: rgba(168, 85, 247, 0.05);
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lesson-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lesson-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(168, 85, 247, 0.1);
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-muted);
    transition: background 0.2s;
}

.lesson-item:last-child {
    border-bottom: none;
}

.lesson-item:hover {
    background: rgba(168, 85, 247, 0.02);
}

.lesson-icon {
    width: 35px;
    height: 35px;
    border-radius: 10px;
    background: rgba(168, 85, 247, 0.1);
    color: var(--purple-bright);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.lesson-item.completed .lesson-icon {
    background: #10b981; /* Verde esmeralda */
    color: white;
}

.lesson-item.completed .lesson-title {
    text-decoration: line-through;
    opacity: 0.7;
}

.lesson-title {
    font-weight: 500;
    flex-grow: 1;
}

.lesson-type-badge {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 8px;
    border-radius: 6px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
}
/* Tooltip/Popup para descripciones de cursos */
.course-tooltip {
    position: absolute;
    background: var(--card-bg);
    border: 2px solid var(--purple-vivid);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    padding: 15px;
    border-radius: 12px;
    width: 320px;
    z-index: 9999;
    pointer-events: none; /* Para que en PC no estorbe el click del mouse */
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    display: none;
    color: var(--text-main);
}
.course-tooltip.active {
    opacity: 1;
    display: block;
}
.course-tooltip h4 { margin: 0 0 8px 0; font-family: 'Fraunces', serif; color: var(--purple-vivid); font-size: 1.1rem; line-height: 1.2;}
.course-tooltip p { margin: 0; font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; }

/* Botón que solo sale en móviles */
.tt-btn-mobile {
    display: none; text-align: center; background: var(--purple-vivid); color: white;
    text-decoration: none; padding: 10px; border-radius: 8px; font-weight: bold; margin-top: 15px; pointer-events: auto;
}

/* Modo teléfono: Se ancla abajo y se vuelve clickeable */
@media (max-width: 768px) {
    .course-tooltip {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        pointer-events: auto; /* Aquí sí estorba para poder darle click al botón */
    }
    .tt-btn-mobile { display: block; }
}