/* Variables */
:root {
    --naranja: #F7931E;
    --naranja-oscuro: #F15A24;
    --gris-claro: #E2E4E7;
    --gris: #AEADB3;
    --blanco: #fff;
    --sombra-suave: rgba(0, 0, 0, 0.1);
    --sombra-fuerte: rgba(0, 0, 0, 0.2);
    --gris-oscuro: #121212;
    --gris-claro-oscuro: #727176;
    --primario: var(--naranja);
}

/* Fuentes */
@font-face {
    font-family: 'Gotham';
    src: url('fonts/Gotham.woff2') format('woff2'),
         url('fonts/Gotham.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}
@font-face {
    font-family: 'BebasKai';
    src: url('fonts/BebasKai.woff2') format('woff2'),
         url('fonts/BebasKai.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

/* GENERAL */
body {
    font-family: 'Gotham', 'Bebas Kai', sans-serif;
    background-color: var(--gris-claro);
    color: var(--gris-oscuro);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    position: relative;
    z-index: 0;
    transition: background-color 0.4s, color 0.4s;
}

body::before {
    content: "";
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('imgs/general/fondo_page2.png');
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    opacity: 0.08;
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
}

/* HEADER */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--naranja);
    color: var(--blanco);
    padding: 15px 30px;
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: background-color 0.4s, color 0.4s;
}

.header .logo {
    display: flex;
    align-items: center;
}

.header .logo img {
    width: 50px;
    margin-right: 10px;
}

.header nav a {
    color: var(--blanco);
    font-size: 15px;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.header nav a:hover {
    background: var(--naranja-oscuro);
}

.header nav a:focus{
    background: var(--naranja-oscuro);
}

/* PERFIL */
.investigador-container {
    padding: 30px 5%;
}

.perfil-investigador {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 50px;
}

.foto-investigador {
    max-width: 280px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.info-investigador {
    flex: 1;
    min-width: 300px;
}

.info-investigador h1 {
    font-size: 2.2rem;
    margin: 0;
    color: var(--primario);
}

.info-investigador .cargo {
    font-weight: bold;
    color: #666;
    margin-top: 5px;
    margin-bottom: 20px;
}

.info-investigador .bio {
    text-align: justify;
    margin-bottom: 20px;
}

.datos-contacto {
    list-style: none;
    padding: 0;
}

.datos-contacto li {
    margin-bottom: 8px;
    font-size: 1rem;
}

.datos-contacto i {
    color: var(--primario);
    margin-right: 8px;
}

/* PUBLICACIONES */
.publicaciones-investigador {
    margin-top: 30px;
}

.publicaciones-investigador h2 {
    color: var(--primario);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.cards-publicaciones {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card-publicacion {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    display: flex;
    flex-direction: column;
}

.card-publicacion:hover {
    transform: translateY(-4px);
}

.card-publicacion img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.card-publicacion div {
    padding: 15px;
}

.card-publicacion h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--gris-oscuro);
}

.card-publicacion p {
    margin: 8px 0;
    font-size: 0.9rem;
    color: #666;
}

.card-publicacion a {
    text-decoration: none;
    color: var(--primario);
    font-weight: bold;
    font-size: 0.9rem;
}

.card-publicacion a:hover {
    text-decoration: underline;
}

/* Footer */
.zis-footer {
    background-color: var(--naranja);
    color: var(--gris-oscuro);
    padding: 40px 20px 20px;
    font-size: 0.95rem;
  }
  
  .footer-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .footer-col {
    flex: 1 1 250px;
  }
  
  .footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--gris-oscuro);
  }
  
  .footer-col p {
    color: var(--gris-claro) !important;
  }
  
  .footer-col a {
    color: var(--gris-claro);
    text-decoration: none;
    margin-bottom: 8px;
    display: block;
  }
  
  .footer-col a:hover{
    color: var(--naranja-oscuro);
  }
  
  .footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  .footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 15px;
    font-size: 0.85rem;
  }
  
  .footer-bottom p{
    text-align: center;
  }
  
  /* Modo oscuro consistente */
  body.modo-oscuro .zis-footer {
    background-color: var(--gris-oscuro);
    color: var(--gris-claro);
  }
  
  body.modo-oscuro .footer-col h4 {
    color: var(--amarillo-claro);
  }
  
  body.modo-oscuro .footer-col p{
    color: var(--naranja) !important;
  }
  
  body.modo-oscuro .footer-col a{
    color: var(--naranja);
  }
  
  body.modo-oscuro .footer-col a:hover{
    color: var(--naranja-oscuro);
  }
  

/* Botón flotante de modo oscuro */
.modo-oscuro-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--gris-claro-oscuro);
    color: var(--blanco);
    font-size: 24px;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 8px var(--sombra-suave);
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.modo-oscuro-btn:hover {
    background-color: var(--naranja-oscuro);
    transform: scale(1.1);
}

body.modo-oscuro .modo-oscuro-btn {
    background-color: var(--gris-claro);
}

body.modo-oscuro .modo-oscuro-btn:hover {
    background-color: var(--naranja-oscuro);
    transform: scale(1.1);
}

/* Modo oscuro */
body.modo-oscuro {
    background-color: var(--gris-oscuro);
    color: var(--gris-claro);
}

body.modo-oscuro .header {
    background-color: rgba(30, 30, 30, 0.95);
    color: var(--gris-claro);
}

body.modo-oscuro .header nav a {
    color: var(--gris-claro) !important;
}

body.modo-oscuro .header nav a:hover {
    color: var(--naranja);
}

body.modo-oscuro .card-publicacion {
    background-color: #1e1e1e;
    color: var(--gris-claro);
}

body.modo-oscuro .card-publicacion h3 {
    color: var(--gris-claro);
}

body.modo-oscuro .card-publicacion p {
    color: #ccc;
}


/* Transiciones suaves */
html {
    scroll-behavior: smooth;
}

/* seccion del modal de publicacion o proyecto */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease-in-out;
  }
  
  .modal-content {
    background: var(--gris-claro);
    color: var(--gris-oscuro);
    padding: 2rem;
    border-radius: 15px;
    max-width: 600px;
    width: 90%;
    position: relative;
    text-align: center;
    animation: slideIn 0.4s ease;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
  }
  
  .modal-content img {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 1rem;
  }
  
  .modal-content h3 {
    color: var(--naranja);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }
  
  .modal-content p {
    font-size: 1rem;
    margin: 0.5rem 0;
  }
  
  .close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    color: #666;
    cursor: pointer;
  }
  
  @keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }
  
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }