/* --- UNIVERSO (FONDO) --- */
body {
    margin: 0;
    padding: 0;
    /* Fondo oscuro moderno con patrón sutil */
    background-color: #0f172a;
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,1) 0, transparent 50%);
    font-family: 'Open Sans', sans-serif;
    height: 100vh;
    overflow: hidden;
}

.book-scene {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- ESTILO DE PÁGINAS BASE --- */
.page {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.02); /* Sutil textura interna */
}

/* Sombra del lomo (Efecto Curvatura) */
.--left {
    background: linear-gradient(to right, #ffffff 90%, #e6e6e6 100%);
    border-right: 1px solid #d4d4d4;
}
.--right {
    background: linear-gradient(to left, #ffffff 90%, #e6e6e6 100%);
    border-left: 1px solid #d4d4d4;
}

/* --- PORTADAS (HARD COVERS) --- */
.hard-cover {
    background: #1e293b; /* Color base oscuro */
    color: white;
    border: 4px solid #334155;
}

.cover-design {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(30,41,59,0.9) 0%, rgba(15,23,42,0.95) 100%);
    position: relative;
}

/* Foto con brillo */
.profile-glow {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    padding: 5px;
    background: linear-gradient(45deg, #3b82f6, #06b6d4); /* Anillo de color */
    margin-bottom: 1.5rem;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}
.profile-glow img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #1e293b;
}

/* Tipografía Portada */
.main-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2rem;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -1px;
}
.subtitle {
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: #94a3b8;
    margin-top: 1rem;
}
.tech-lines {
    width: 60px;
    height: 4px;
    background: #06b6d4;
    margin: 1rem 0;
    border-radius: 2px;
}
.badge-2026 {
    margin-top: 3rem;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.7rem;
    background: rgba(255,255,255,0.05);
}

/* --- SECCIONES FULL COLOR (Divisores) --- */
.section-cover {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.bg-blue {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
}
.bg-dark {
    background: linear-gradient(135deg, #0f172a 0%, #334155 100%);
    color: white;
}
.white-line { width: 40px; height: 3px; background: white; margin: 1rem auto; }
.cyan-line { width: 40px; height: 3px; background: #22d3ee; margin: 1rem auto; }

/* --- CONTENIDO INTERNO --- */
.page-header {
    padding: 1.5rem 2rem 0.5rem;
    border-bottom: 2px solid #f1f5f9;
}
.page-header h3 {
    font-family: 'Montserrat', sans-serif;
    color: #1e3a8a;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 1.1rem;
}

.page-content {
    padding: 2rem;
    height: calc(100% - 60px); /* Restar header */
    overflow-y: auto;
}
.center-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

/* Tarjetas */
.modern-card {
    background: #f8fafc;
    border-left: 4px solid #3b82f6;
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

/* Nube de Tags */
.tags-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.tag {
    background: #e0f2fe;
    color: #0369a1;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Timeline de Trabajo */
.job-timeline { border-left: 2px solid #e2e8f0; margin-left: 10px; padding-left: 20px; }
.job-item { position: relative; margin-bottom: 2rem; }
.job-icon {
    position: absolute; left: -29px; top: 0;
    width: 18px; height: 18px;
    background: #3b82f6; color: white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.6rem;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.job-list { list-style: disc; margin-left: 1rem; font-size: 0.85rem; color: #64748b; margin-top: 0.5rem; }

/* Grid de Skills */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    width: 100%;
}
.skill-box {
    background: white;
    border: 1px solid #e2e8f0;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.2s;
}
.skill-box:hover { transform: translateY(-2px); border-color: #3b82f6; }
.skill-box i { font-size: 1.5rem; margin-bottom: 0.5rem; display: block; }
.skill-box span { font-size: 0.8rem; font-weight: 600; color: #475569; }

/* Botones y Varios */
.page-number { position: absolute; bottom: 1rem; width: 100%; text-align: center; color: #cbd5e1; font-size: 0.7rem; }
.btn-glass { background: rgba(255,255,255,0.1); color: white; padding: 8px 16px; border-radius: 6px; backdrop-filter: blur(4px); transition: 0.3s; }
.btn-glass:hover { background: white; color: black; }
.action-btn { background: #2563eb; color: white; padding: 10px 20px; border-radius: 99px; font-weight: bold; box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3); transition: 0.3s; }
.action-btn:hover { background: #1d4ed8; transform: scale(1.05); }

/* Logo Final */
.logo-final {
    width: 60px; height: 60px; border: 2px solid #94a3b8; color: #94a3b8;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: bold; border-radius: 50%;
}