:root {
    /* --- VARIABLES BASE (MODO OSCURO) --- */
    --bg-color: #000000;
    --text-color: #ffffff;
    --accent-color: #c19f63;
    --header-height: 130px;

    --bg-card: #111111;
    --border-color: #333333;

    /* Fondo cuando bajas con el scroll (Negro casi solido) */
    --header-bg-scrolled: rgba(0, 0, 0, 0.95);

    /* Fondo INICIAL (Arriba del todo): Degradado negro a transparente */
    --header-bg-initial: linear-gradient(180deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.0) 100%);

    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --text-muted: #cccccc;
}

/* --- VARIABLES MODO CLARO (LIGHT MODE) --- */
body.light-mode {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --accent-color: #b08d55;
    --bg-card: #f8f9fa;
    --border-color: #e0e0e0;

    --header-bg-scrolled: rgba(255, 255, 255, 0.98);
    --header-bg-initial: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgb(255, 255, 255) 100%);

    --shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --text-muted: #666666;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 2;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- HEADER OPTIMIZADO --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background: var(--header-bg-initial);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: all 0.3s ease;
    color: var(--text-color);
}

.header.scrolled {
    background: var(--header-bg-scrolled);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.15);
    height: 90px;
}

body.light-mode .header.scrolled {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header .container {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0rem;
    transition: padding 0.3s ease;
}

.header.scrolled .container {
    padding-top: 0;
}

/* --- LOGO --- */
.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1100;
}

.logo img {
    /*Logo CDD*/
    width: 120px;
    height: 120px;
    object-fit: contain;
    display: block;
    transition: all 0.3s ease;
}

.logo img:first-child {
    /*Logo CC*/
    width: 200px;
    height: 200px;
    object-fit: contain;
    display: block;
    transition: all 0.3s ease;
}

.logo img:last-child {
    /*Logo AP*/
    width: 105px;
    height: 105px;
    object-fit: contain;
    display: block;
    transition: all 0.3s ease;
}

/* Reducir logos al hacer scroll */
.header.scrolled .logo img {
    /*logo CDD*/
    width: 80px;
    height: 80px;
}

.header.scrolled .logo img:last-child {
    /*logo AP*/
    width: 70px;
    height: 70px;
}

.header.scrolled .logo img:first-child {
    /*logo CC*/
    width: 160px;
    height: 160px;
}

/* Primer logo (CC.png) - se vuelve blanco en modo oscuro */
.logo img:first-child {
    filter: brightness(0) invert(1);
}

/* En modo claro, el primer logo vuelve a su color original */
body.light-mode .logo img:first-child {
    filter: none;
}

/* ---  GRUPO DERECHO (Menú + Iconos) --- */
.right-group {
    display: flex;
    align-items: center;
    gap: 2rem;
    position: relative;
    z-index: 1100;
}

/* Navegación */
.main-nav {
    display: block;
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    gap: 2rem;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.95rem;
    letter-spacing: 1px;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Controles (Tema + Hamburguesa) */
.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Botón de Tema */
.theme-toggle {
    background: transparent;
    border: 1px solid rgba(128, 128, 128, 0.5);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

body.light-mode .theme-toggle {
    border-color: rgba(0, 0, 0, 0.2);
}

.theme-toggle:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(193, 159, 99, 0.1);
    transform: rotate(15deg);
}

.hamburger {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-color);
    background: none;
    border: none;
}

/* --- HERO SECTION --- */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 5%;
    color: #fff;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 140px;
    left: 0;
    width: 100%;
    height: calc(100% - 140px);
    background-image: url('../img/CDD_desde.arriba.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center var(--hero-position-y, top);
    filter: brightness(0.3);
    z-index: 1;
    transition: filter 0.5s ease, transform 10s ease;
}

.hero:hover::before {
    transform: scale(1.1);
    filter: brightness(0.4);
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
    margin-top: 80px;
}

body.light-mode .hero-content h1,
body.light-mode .hero-content p {
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.1;
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

/* --- Social Icons Hero --- */
.social-icons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 2rem;
}

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    color: #fff;
    font-size: 1.2rem;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.social-icons a:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-5px);
}

/* --- RESTO DE SECCIONES --- */
section {
    padding: 6rem 0;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-color);
    position: relative;
    letter-spacing: -0.5px;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 15px auto 0;
}

/* Eventos */
.events {
    background-color: var(--bg-color);
}

.event-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 0 1rem;
}

.event-card {
    background: var(--bg-card);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    width: 100%;
    max-width: 600px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.event-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.event-card:hover::before {
    transform: scaleX(1);
}

.event-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.event-card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 1rem;
}

/* Sobre Nosotros */
.about-section {
    background-color: var(--bg-card);
    margin-top: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

.about-content {
    display: flex;
    align-items: flex-start;
    gap: 3rem;
    flex-wrap: nowrap;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.about-text {
    flex: 2;
    column-count: 2;
    column-gap: 3rem;
    max-width: 100%;
}

.about-text p {
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 2rem;
}

.about-image {
    flex: 1;
    max-width: 100%;
}

.about-image img,
.about-image video {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--shadow);
    object-fit: cover;
}

.about-image img:hover {
    filter: grayscale(0%);
}

/* Galería (Carrusel) */
.gallery-section {
    background-color: var(--bg-color);
}

.carousel-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.carousel-slide {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.carousel-slide img {
    width: 100%;
    height: 550px;
    object-fit: cover;
    flex-shrink: 0;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.3);
    color: white;
    border: none;
    padding: 1.5rem 1rem;
    cursor: pointer;
    font-size: 1.5rem;
    transition: background 0.3s;
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--accent-color);
}

.prev-btn {
    left: 0;
}

.next-btn {
    right: 0;
}

/* Contactos */
.contact-section {
    background-color: var(--bg-card);
}

.contact-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
}

.contact-info,
.contact-form-wrapper {
    flex: 1;
    min-width: 320px;
    background: var(--bg-color);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.contact-item {
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.contact-item i {
    color: var(--accent-color);
    font-size: 1.4rem;
}

/* Formularios */
form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

textarea,
input {
    width: 100%;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-family: inherit;
    transition: border-color 0.3s, background 0.3s;
}

textarea:focus,
input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--bg-color);
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #25D366;
    color: white !important;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.2);
    margin-top: 1rem;
}

.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* Footer */
footer {
    background: #050505;
    color: #888;
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid #1a1a1a;
    font-size: 0.9rem;
}

/* --- RESPONSIVE DESIGN --- */

@media (max-width: 1024px) {
    :root {
        --header-height: 110px;
    }

    .header .container {
        padding-top: 30px;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .hero-content h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 80px;
    }

    section {
        padding: 4rem 0;
    }

    .header .container {
        padding: 0 1.5rem;
        padding-top: 0;
        justify-content: space-between;
    }

    .logo img {
        /*Logo CDD*/
        width: 60px;
        height: 60px;
    }

    .logo img:first-child {
        /*Logo CC*/
        width: 90px;
        height: 90px;
    }

    .logo img:last-child {
        /*Logo AP*/
        width: 55px;
        height: 55px;
    }

    .header.scrolled .logo img {
        width: 45px;
        height: 45px;
    }

    .header.scrolled .logo img:first-child {
        width: 70px;
        height: 70px;
    }

    .header.scrolled .logo img:last-child {
        width: 40px;
        height: 40px;
    }

    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--bg-color);
        flex-direction: column;
        align-items: center;
        padding: 3rem 0;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow);

        opacity: 0;
        pointer-events: none;
        transform: translateY(-20px);
        transition: all 0.3s ease;
    }

    .nav-links.open {
        opacity: 1;
        pointer-events: all;
        transform: translateY(0);
    }

    .nav-links li {
        margin: 1rem 0;
    }

    .hamburger {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .about-content {
        flex-direction: column;
    }

    .about-text {
        column-count: 1;
    }

    .carousel-slide img {
        height: 300px;
    }

    .contact-container {
        padding: 0;
        gap: 2rem;
    }

    .contact-info,
    .contact-form-wrapper {
        padding: 1.5rem;
        min-width: 100%;
    }
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- SCROLL TO TOP BUTTON --- */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 9999;

    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* --- ANIMACIONES DE DESPLAZAMIENTO (SCROLL REVEAL) --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease-out;
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease-out;
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-zoom {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s ease-out;
}

.reveal-zoom.active {
    opacity: 1;
    transform: scale(1);
}

.scroll-top-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: #d4af6e;
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 25px rgba(193, 159, 99, 0.5);
}

.scroll-top-btn:active {
    transform: translateY(0) scale(0.95);
}