/* Landing IAenelACUARIO - Diseño impactante y responsive */
:root {
    --azul-profundo: #0a2647;
    --azul-medio: #144272;
    --azul-claro: #205295;
    --azul-agua: #2c74b3;
    --azul-celeste: #42a5f5;
    --azul-pastel: #90caf9;
    --azul-hielo: #e8f4fd;
    --blanco: #ffffff;
    --gris-claro: #f5f9fc;
    --sombra: rgba(10, 38, 71, 0.15);
    --sombra-hover: rgba(10, 38, 71, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--azul-profundo);
    background: linear-gradient(160deg, var(--gris-claro) 0%, var(--azul-hielo) 40%, var(--azul-pastel) 100%);
    min-height: 100vh;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--azul-profundo) 0%, var(--azul-medio) 40%, var(--azul-claro) 100%);
    color: var(--blanco);
    padding: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero:has(.btn-volver-hero) {
    padding-top: clamp(4rem, 8vw, 5rem);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(66, 165, 245, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-dominio {
    font-size: clamp(0.95rem, 2.5vw, 1.15rem);
    font-weight: 600;
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
    opacity: 0.95;
    text-transform: uppercase;
}

.btn-volver-hero {
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    color: var(--blanco);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity 0.2s;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 0.4rem;
}

.btn-volver-hero:hover {
    opacity: 1;
    background: rgba(255,255,255,0.1);
}

.hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.hero .subtitulo {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    opacity: 0.95;
}

/* Contenedor */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: clamp(1.5rem, 4vw, 2.5rem);
}

/* Cards base */
.card {
    background: var(--blanco);
    border-radius: 1.25rem;
    box-shadow: 0 4px 24px var(--sombra);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 1.75rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px var(--sombra-hover);
}

.card h2 {
    color: var(--azul-medio);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid transparent;
    border-image: linear-gradient(90deg, var(--azul-agua), var(--azul-celeste)) 1;
}

/* Botón ir al formulario */
.btn-ir-formulario {
    display: inline-block;
    margin-top: 1.25rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--azul-medio), var(--azul-claro));
    color: var(--blanco);
    text-decoration: none;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn-ir-formulario:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(44, 116, 179, 0.35);
}

/* Empresas - tarjetas destacadas */
.card-empresas .empresas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 3vw, 1.75rem);
}

.empresa {
    background: linear-gradient(180deg, var(--azul-hielo) 0%, var(--blanco) 100%);
    border: 1px solid rgba(44, 116, 179, 0.15);
    border-radius: 1rem;
    padding: clamp(1rem, 2.5vw, 2rem);
    text-align: center;
    transition: all 0.3s ease;
}

.empresa:hover {
    border-color: var(--azul-pastel);
    box-shadow: 0 8px 30px rgba(44, 116, 179, 0.2);
}

.empresa-logo {
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    padding: clamp(0.5rem, 1.5vw, 1rem);
}

.empresa-logo img {
    max-height: 120px;
    max-width: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.empresa h3 {
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    color: var(--azul-profundo);
    margin-bottom: 0.35rem;
}

.empresa p {
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    color: var(--azul-medio);
    line-height: 1.5;
}

/* Ponente */
.ponente {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.ponente-info {
    flex: 1;
    min-width: 0;
}

.ponente-info strong {
    color: var(--azul-medio);
}

.ponente-info p + p {
    margin-top: 0.75rem;
}

/* Ágape */
.agape {
    background: linear-gradient(135deg, var(--azul-claro) 15%, var(--azul-agua) 100%);
    color: var(--blanco);
}

.agape h2 {
    color: var(--blanco);
    border-image: linear-gradient(90deg, rgba(255,255,255,0.6), rgba(255,255,255,0.2)) 1;
}

.agape p {
    color: var(--blanco);
}

/* Formulario */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
    color: var(--azul-profundo);
}

.form-group input {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 2px solid #e2eaf2;
    border-radius: 0.6rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--azul-agua);
}

/* Checkbox privacidad */
.form-check {
    margin-bottom: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.9rem;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
    flex-shrink: 0;
    accent-color: var(--azul-agua);
}

.checkbox-label a {
    color: var(--azul-agua);
    text-decoration: underline;
}

.checkbox-label a:hover {
    color: var(--azul-medio);
}

.form-group input::placeholder {
    color: #9ca3af;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn-inscribirse {
    background: linear-gradient(135deg, var(--azul-medio), var(--azul-claro));
    color: var(--blanco);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 0.6rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.btn-inscribirse:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(44, 116, 179, 0.4);
}

.btn-inscribirse:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Aviso invitación */
.aviso-invitacion {
    background: linear-gradient(90deg, var(--azul-hielo), transparent);
    border-left: 4px solid var(--azul-medio);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    font-size: clamp(0.9rem, 2vw, 0.95rem);
    border-radius: 0 0.5rem 0.5rem 0;
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--azul-profundo), var(--azul-medio));
    color: var(--blanco);
    padding: clamp(1rem, 3vw, 1.5rem) clamp(1.25rem, 4vw, 2rem);
    box-shadow: 0 -4px 24px var(--sombra);
    z-index: 9999;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-banner h3 {
    margin-bottom: 0.5rem;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
}

.cookie-banner p {
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    opacity: 0.95;
    margin-bottom: 1rem;
}

.cookie-banner a {
    color: var(--azul-pastel);
    text-decoration: underline;
}

.cookie-banner a:hover {
    color: var(--blanco);
}

.cookie-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.cookie-buttons button {
    padding: 0.5rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: opacity 0.2s;
}

.btn-aceptar-cookies {
    background: var(--blanco);
    color: var(--azul-profundo);
}

.btn-rechazar-cookies {
    background: transparent;
    color: var(--blanco);
    border: 2px solid var(--blanco);
}

.cookie-buttons button:hover {
    opacity: 0.9;
}

/* Mensajes formulario */
.form-message {
    padding: 1rem;
    border-radius: 0.6rem;
    margin-bottom: 1rem;
    display: none;
}

.form-message.show {
    display: block;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
}

/* Footer */
footer {
    text-align: center;
    padding: clamp(1.5rem, 4vw, 2rem);
    color: var(--azul-medio);
    font-size: clamp(0.85rem, 2vw, 0.9rem);
}

/* ========== PÁGINAS LEGALES ========== */
.legal h2 {
    margin-top: 2rem;
}

.legal h3 {
    color: var(--azul-claro);
    font-size: 1.1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.legal p {
    margin-bottom: 0.75rem;
}

.legal ul {
    margin: 0.75rem 0 1rem 1.5rem;
}

.legal li {
    margin-bottom: 0.4rem;
}

.legal a {
    color: var(--azul-agua);
}

.legal a:hover {
    color: var(--azul-medio);
}

.legal .destacado {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--azul-medio);
    text-align: center;
    margin-bottom: 0.5rem;
}

.legal .fecha-actualizacion {
    margin-top: 2rem;
    font-style: italic;
    color: #666;
    font-size: 0.9rem;
}

/* Tabla de cookies */
.tabla-cookies {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 1.5rem;
    font-size: 0.9rem;
}

.tabla-cookies th,
.tabla-cookies td {
    border: 1px solid #ddd;
    padding: 0.75rem;
    text-align: left;
}

.tabla-cookies th {
    background: var(--azul-hielo);
    color: var(--azul-profundo);
    font-weight: 600;
}

.tabla-cookies tr:nth-child(even) {
    background: #f9fbfd;
}

@media (max-width: 600px) {
    .tabla-cookies {
        font-size: 0.8rem;
    }
    
    .tabla-cookies th,
    .tabla-cookies td {
        padding: 0.5rem;
    }
}

/* Entidades responsables */
.entidades-responsables {
    display: grid;
    gap: 1rem;
    margin: 1rem 0;
}

.entidades-responsables .entidad {
    background: var(--azul-hielo);
    padding: 1rem 1.25rem;
    border-radius: 0.5rem;
    border-left: 4px solid var(--azul-agua);
}

.entidades-responsables .entidad h3 {
    margin-top: 0;
    color: var(--azul-profundo);
}

.entidades-responsables .entidad ul {
    margin: 0.5rem 0 0 0;
    list-style: none;
}

.entidades-responsables .entidad li {
    margin-bottom: 0.25rem;
}

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

/* Tablets */
@media (max-width: 900px) {
    .card-empresas .empresas {
        grid-template-columns: 1fr;
    }

    .empresa {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 1.25rem;
        text-align: left;
    }

    .empresa-logo {
        flex-shrink: 0;
        min-height: 60px;
        min-width: 100px;
        width: 120px;
        margin-bottom: 0;
        padding: 0.25rem;
    }

    .empresa-logo img {
        max-height: 70px;
        max-width: 100%;
    }

    .empresa h3 {
        margin-bottom: 0.2rem;
    }
}

/* Móviles */
@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .empresa {
        flex-direction: column;
        text-align: center;
    }

    .empresa-logo {
        width: auto;
        min-width: unset;
        padding: 0.5rem;
    }

    .empresa-logo img {
        max-height: 90px;
    }

    .card {
        padding: 1.25rem;
    }

    .cookie-banner {
        padding: 1.25rem;
    }
}

/* Video responsive */
video {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

/* Móviles muy pequeños */
@media (max-width: 380px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .hero-dominio {
        letter-spacing: 0.1em;
    }
}