/* ===== Variables de Color ===== */
:root {
    /* Paleta original: granate como primario, beige como acento */
    --color-primary: #3a0d17; /* granate (original) */
    --color-secondary: #5c1a2a; /* tono granate secundario */
    --color-accent: #d4a574; /* beige acento (original) */
    --color-accent-light: #e8c9a8; /* tono beige más claro */
    --color-text-dark: #f5e6d3; /* texto principal en beige claro */
    --color-text-light: #e6d5c8; /* texto secundario/grisado en beige */
    --color-beige-dark: #b08a6a; /* beige oscuro para bordes */
    --color-border: #8b2d3f;
    --font-elegant: 'Playfair Display', 'Georgia', serif;
    --font-body: 'Lato', 'Arial', sans-serif;
    --transition: all 0.3s ease;
    --color-overlay: rgba(101, 43, 41, 0.75); /* overlay granate semitransparente */
    /* Fondo del modal (respetar la paleta del tema) */
    /* Modal should invert: fondo granate y texto/beige para el tema granate */
    --modal-bg: linear-gradient(180deg, rgba(58,13,23,0.97), rgba(58,13,23,0.93));
    --form-text-color: var(--color-primary);
    /* modal-specific color tokens to keep modal matching theme (panel granate, text beige) */
    --modal-confirm-bg: var(--color-accent);      /* botón Confirmar: beige sobre fondo granate */
    --modal-confirm-color: var(--color-primary);  /* texto del botón Confirmar: granate */
    --modal-confirm-shadow: 0 8px 24px rgba(0,0,0,0.28);
    /* modal text and cancel button contrast for granate theme */
    --modal-text-color: var(--color-text-dark);  /* contenido del modal en beige */
    --modal-title-color: var(--color-accent-light); /* título en beige claro */
    --modal-cancel-color: var(--color-accent);   /* cancelar en beige */
    --modal-cancel-border: rgba(212,165,116,0.18); /* borde beige suave */
}

/* ===== Reset y Estilos Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    background-color: var(--color-primary);
    background-image: url('../img/damasco.png');
    background-attachment: fixed;
    background-size: auto;
    background-repeat: repeat;
    line-height: 1.6;
    position: relative;
}

/* ===== Tipografía ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-elegant);
    color: var(--color-text-dark);
    margin-bottom: 1.5rem;
    font-weight: 400;
    letter-spacing: 1px;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

h3 {
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

p {
    color: var(--color-text-light);
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.8;
}

/* ===== Header y Navegación ===== */
header {
    background-color: var(--color-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Header actions (botón blanco/negro) removed — theme is fixed to granate */

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 1.5rem;
}

nav a {
    text-decoration: none;
    color: var(--color-text-dark);
    font-family: var(--font-elegant);
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    letter-spacing: 0.5px;
}

nav a::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition);
}

nav a:hover::before {
    width: 100%;
}

nav a:hover {
    color: var(--color-text-light);
}

/* Enlace activo (sección actual) */
nav a.active {
    color: var(--color-accent);
}

nav a.active::before {
    width: 100%;
}

/* Hacer el enlace activo más visible */
nav a.active {
    font-weight: 600;
    transform: translateY(-1px);
}

/* ===== Main Content ===== */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

section {
    padding: 4rem 2rem;
    min-height: auto;
}

/* ===== Sección Inicio ===== */
#inicio {
    background:
        linear-gradient(135deg, rgba(99, 39, 40, 0.8) 0%, rgba(115, 61, 49, 0.8) 100%),
        url('../img/damasco.png'),
        url('../img/foto_javi_laura_cancun_bw.jpeg') center top / cover no-repeat;
    background-attachment: fixed, fixed, scroll;
    background-size: auto, auto, contain;
    text-align: center;
    /* reducir padding-top para subir el contenido sin solapar la foto */
    padding: 3.5rem 2rem 6rem;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Pseudo-elemento para la foto de fondo con mejor control */
#inicio::before {
    content: '';
    position: absolute;
    /* desplazar la foto ligeramente hacia abajo y reducir altura para evitar que el título tape la cara */
    top: 3%;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 88%;
    background: url('../img/9.png') center 65% / cover no-repeat;
    background-attachment: scroll;
    opacity: 0.40;
    z-index: 0;
    pointer-events: none;
}

#inicio>* {
    position: relative;
    z-index: 1;
}

#inicio h1 {
    font-size: 4.5rem;
    color: var(--color-accent-light);
    /* quitar margen negativo: controlamos la posición con padding del contenedor */
    margin-top: 0;
    margin-bottom: 0.5rem;
    animation: slideInDown 0.8s ease;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

#inicio h1::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    margin: 1.5rem auto;
    border-radius: 2px;
}

#inicio p:first-of-type {
    font-size: 1.8rem;
    color: var(--color-accent);
    font-style: italic;
    margin-bottom: 2rem;
    font-family: var(--font-elegant);
}

#inicio p:last-of-type {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-top: 2rem;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

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

/* ===== Secciones Generales ===== */
section {
    background: linear-gradient(135deg, rgba(101, 43, 41, 0.8) 0%, rgba(128, 73, 62, 0.8) 100%), url('../img/damasco.png');
    background-attachment: fixed;
    background-size: auto;
}

section:nth-child(even) {
    background: linear-gradient(135deg, rgba(128, 73, 62, 0.85) 0%, rgba(101, 43, 41, 0.85) 100%), url('../img/damasco.png');
    background-attachment: fixed;
    background-size: auto;
}

section p {
    text-align: justify;
}

/* ===== Sección Evento ===== */
#evento {
    padding: 4rem 2rem;
}

.event-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.event-card {
    background: linear-gradient(135deg, rgba(101, 43, 41, 0.9) 0%, rgba(128, 73, 62, 0.9) 100%);
    padding: 0;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35), inset 0 0 20px rgba(212, 165, 116, 0.1);
    transition: var(--transition);
    border-left: 5px solid var(--color-accent);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Tarjetas 'Información' clicables */
.info-card { cursor: pointer; border-left-color: rgba(212,165,116,0.12); }
.info-card:focus, .info-card:hover { transform: translateY(-6px); box-shadow: 0 12px 28px rgba(0,0,0,0.22); }
.info-card .event-card-content h3 { margin-bottom: 0.4rem; }
.info-card .event-card-content p { margin-bottom: 0.8rem; opacity: 0.95; }

.event-card-image {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
}

.event-card-content {
    padding: 2rem;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(211, 47, 47, 0.12);
}

.event-card h3 {
    color: var(--color-accent);
    margin-top: 0;
    margin-bottom: 1rem;
}

.event-card p {
    margin-bottom: 0.8rem;
}

.map-button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.8rem 1.5rem;
    background-color: var(--color-accent);
    color: var(--color-primary);
    border: none;
    border-radius: 4px;
    font-family: var(--font-elegant);
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
    font-weight: 500;
}

.map-button:hover {
    background-color: var(--color-accent-light);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.map-button:active {
    transform: translateY(0);
}

/* Small variant for inline map buttons in info lists */
.map-button.small {
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
    border-radius: 3px;
}

/* Layout and list styles for Información de interés */
.info-details { margin-top: 1.75rem; gap: 1.75rem; }
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { padding: 0.55rem 0; border-bottom: 1px dashed rgba(255,238,220,0.08); }
.info-map-link {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: rgba(255, 255, 255, 0.95);
    text-decoration: none;
    font-weight: 500;
}
.info-map-link:hover {
    color: var(--color-accent);
    text-shadow: 0 0 12px rgba(212, 165, 116, 0.35);
}
.info-map-icon {
    width: 0.95rem;
    height: 0.95rem;
    display: inline-block;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23D4A574'><path d='M12 2c-3.32 0-6 2.7-6 6.02 0 4.34 6 11.98 6 11.98s6-7.64 6-11.98C18 4.7 15.32 2 12 2zm0 8.2a2.2 2.2 0 1 1 0-4.4 2.2 2.2 0 0 1 0 4.4z'/></svg>");
    background-repeat: no-repeat;
    background-size: contain;
    opacity: 0.9;
}

/* Slightly reduce padding in info cards so content looks compact */
.event-card .event-card-content { padding: 1.25rem; }

/* Info cards: richer surface and better hierarchy */
.info-card {
    position: relative;
    border-left-color: transparent;
    border: 1px solid rgba(212, 165, 116, 0.28);
    background: linear-gradient(160deg, rgba(121, 56, 50, 0.96) 0%, rgba(88, 39, 36, 0.96) 100%);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35), inset 0 0 24px rgba(212, 165, 116, 0.08);
}

.info-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, rgba(212, 165, 116, 0.9), rgba(255, 228, 196, 0.2));
    opacity: 0.85;
}

.info-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.08), transparent 55%);
    opacity: 0.7;
    pointer-events: none;
}

.info-card .event-card-content {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    min-height: 175px;
    position: relative;
    z-index: 1;
}

.info-card .event-card-content h3 {
    letter-spacing: 0.5px;
}

.info-card .event-card-content p {
    color: rgba(255, 255, 255, 0.88);
}

.info-card .map-button.small {
    align-self: flex-start;
    margin-top: auto;
}

@media (max-width: 820px){
    .event-details { grid-template-columns: 1fr; }
    .info-details { gap: 1.25rem; }
}

/* ===== Sección Galería ===== */

/* Galería eliminada - estilos removidos */

/* ===== Sección Confirmación ===== */
#confirmacion {
    padding: 4rem 2rem;
}

form {
    max-width: 500px;
    margin: 2rem auto;
    display: grid;
    gap: 1.5rem;
}

input,
select,
textarea {
    padding: 1rem 1.2rem;
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-dark);
    transition: var(--transition);
    background-color: rgba(101, 43, 41, 0.95);

}

input::placeholder,
textarea::placeholder {
    color: var(--color-accent);
    opacity: 0.7;
}
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent-light);
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.2);
    background-color: rgba(101, 43, 41, 1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== Botones ===== */
button,
input[type="submit"] {
    padding: 1rem 2rem;
    background-color: var(--color-accent);
    color: var(--color-primary);
    border: none;
    border-radius: 4px;
    font-family: var(--font-elegant);
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 1px;
    font-weight: 500;
}

button:hover,
input[type="submit"]:hover {
    background-color: var(--color-accent-light);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.4);
}

button:active,
input[type="submit"]:active {
    transform: translateY(0);
}

/* ===== Footer ===== */
footer {
    background-color: var(--color-text-dark);
    color: var(--color-primary);
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    border-top: 3px solid var(--color-accent);
}

/* Theme variables for the RSVP form (layout lives in form.css) */
#rsvp-form {
    --form-bg: linear-gradient(180deg, rgba(245,230,211,0.12), rgba(245,230,211,0.08));
    --form-border: rgba(212,165,116,0.06);
    --form-shadow: 0 8px 30px rgba(0,0,0,0.28);
    --form-input-bg: rgba(255,255,255,0.94);
    --form-input-border: rgba(245,230,211,0.14);
    --form-text-color: var(--color-primary);
    --form-placeholder: rgba(58,13,23,0.25);
    --form-button-shadow: 0 6px 20px rgba(0,0,0,0.18);
}

@media (max-width: 420px) {
    #rsvp-form { padding: 1rem; }
    input[type="text"], select { height: 44px; }
}

/* ===== Botón flotante de música (simple, altavoz granate, tachado cuando está apagado) ===== */
#music-toggle {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 2px solid rgba(138, 45, 63, 0.12);
    color: var(--color-accent); /* controla el color del icono (SVG usa currentColor) */
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
    cursor: pointer;
    z-index: 1200;
    padding: 0;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

#music-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(138,45,63,0.08);
    transform: translateY(-2px);
}

#music-toggle .music-svg {
    width: 28px;
    height: 28px;
    display: block;
}

/* Por defecto ocultamos las ondas y la raya de mute; se mostrarán según la clase del botón */
#music-toggle .icon-wave { display: none; }
#music-toggle .icon-muted { display: none; }

/* Estado: música activa -> mostrar ondas, ocultar raya */
#music-toggle.music-on .icon-wave { display: block; }
#music-toggle.music-on .icon-muted { display: none; }

/* Estado: música inactiva -> ocultar ondas, mostrar raya (tachado) */
#music-toggle.music-off .icon-wave { display: none; }
#music-toggle.music-off .icon-muted { display: block; }

/* Ajustes visuales para trazos del SVG (cuando se muestra la raya, que sea claramente visible) */
#music-toggle .icon-muted path { stroke: currentColor; stroke-width: 2; }


footer p {
    color: var(--color-primary);
    margin: 0;
}

#founder {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-primary);
}

/* ===== Media Queries - Tablet ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    #inicio {
        padding: 2.5rem 1rem 4.5rem;
        min-height: 70vh;
    }

    #inicio h1 {
        font-size: 3rem;
        margin-top: 0;
    }

    #inicio p:first-of-type {
        font-size: 1.5rem;
    }

    nav ul {
        gap: 1rem;
        padding: 1rem;
    }

    nav a {
        font-size: 0.95rem;
    }

    .event-details {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .event-card-image {
        height: 250px;
    }

    section {
        padding: 2rem 1rem;
    }
}

/* ===== Media Queries - Móvil ===== */
@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    #inicio {
        padding: 2rem 1rem;
        min-height: 60vh;
    }

    #inicio h1 {
        font-size: 2.2rem;
        margin-bottom: 0.5rem;
        margin-top: 0;
    }

    #inicio h1::after {
        width: 80px;
    }

    #inicio p:first-of-type {
        font-size: 1.2rem;
        margin-bottom: 1.5rem;
    }

    nav ul {
        gap: 0.8rem;
        padding: 0.8rem;
        /* Mostrar en línea horizontal en móvil */
        flex-direction: row;
        align-items: center;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    nav a {
        font-size: 0.9rem;
    }

    .event-details {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .event-card-image {
        height: 220px;
    }

    .event-card-content {
        padding: 1.5rem;
    }

    .info-card .event-card-content {
        min-height: auto;
        gap: 0.65rem;
    }

    .info-card .map-button.small {
        width: 100%;
        text-align: center;
    }

    section {
        padding: 1.5rem 1rem;
    }

    form {
        margin: 1.5rem 1rem;
        gap: 1rem;
    }

    input,
    select,
    textarea,
    button {
        font-size: 0.95rem;
        padding: 0.8rem 1rem;
    }

    button,
    input[type="submit"] {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
}

/* ===== Extras ===== */
.highlight {
    color: var(--color-accent);
    font-weight: 500;
}

/* Número de cuenta (sección "Con mucho cariño") */
.account-number {
    font-size: 1.25rem;
    font-weight: 700;
    text-align: center;
    margin-top: 0.8rem;
    color: var(--color-accent);
}

/* Contenedor y botón de copiar */
.account-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.8rem;
}
.account-actions {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}
.copy-btn {
    padding: 0.5rem 0.9rem;
    background-color: var(--color-accent);
    color: var(--color-primary);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-elegant);
    transition: var(--transition);
}
.copy-btn:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
}
.copy-status {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 600;
}

/* Toast de confirmación */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 0.6rem 1rem;
    border-radius: 24px;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
    z-index: 1400;
}
.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition);
} 

a:hover {
    text-decoration: underline;
    color: var(--color-accent-light);
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-light);
}

/* ===== Intro tipo sobre ===== */

body.intro-active {
    overflow: hidden;
    background-color: var(--color-secondary);
    background-image: none;
}

/* Capa que cubre toda la pantalla al inicio */
#intro-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    pointer-events: auto;
    animation: introFadeOut 0.9s ease 3.8s forwards;
    perspective: 1400px;
}

/* CONTENEDOR DEL SOBRE */
.intro-envelope {
    position: relative;
    width: min(82vw, 540px);
    height: min(58vw, 320px);
    /* “rectángulo” exterior del sobre (parte trasera) */
    background: var(--color-primary);
    border-radius: 14px;
    box-shadow:
        0 16px 40px rgba(0, 0, 0, 0.45),
        0 0 0 2px rgba(212, 165, 116, 0.65);
    /* borde exterior más visible */
    border: 2px solid var(--color-beige-dark);
    transform-origin: center;
    transform-style: preserve-3d;
    overflow: visible;
    animation: envelopeZoom 1.6s ease-in-out 2.4s forwards;
}

/* Base trasera del sobre (imitando el cerrado verde) */
.intro-envelope::before {
    content: '';
    position: absolute;
    inset: 10% 8% 10%;
    background: var(--color-primary);
    border-radius: 12px;
    box-shadow:
        inset 0 0 0 1px var(--color-beige-dark);
    /* leve dibujo de las solapas inferiores */
    background-image:
        linear-gradient(135deg, transparent 48%, rgba(0, 0, 0, 0.08) 49%, transparent 51%),
        linear-gradient(225deg, transparent 48%, rgba(0, 0, 0, 0.08) 49%, transparent 51%);
    background-size: 50% 45%;
    background-position: left bottom, right bottom;
    background-repeat: no-repeat;
    z-index: 0;
}

/* PANEL INTERIOR (bolsillo) CON DAMASCO: al principio oculto (sobre cerrado) */
.intro-envelope-inner {
    position: absolute;
    inset: 14% 10% 12%;
    background-image: url('../img/damasco.png');
    background-size: cover;
    background-position: center;
    border-radius: 10px;
    box-shadow: inset 0 0 25px rgba(0, 0, 0, 0.35);
    opacity: 0;
    z-index: 1;
    animation: pocketReveal 1.4s ease 1.3s forwards;
}

.intro-envelope-body {
    position: absolute;
    inset: 26% 14% 18%;
    border-radius: 12px;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 3;
    opacity: 0;
    animation: cardFadeIn 1s ease 1.7s forwards;
}

/* Tarjeta física */
.intro-envelope-body::before {
    content: '';
    position: absolute;
    inset: 8%;
    background: var(--color-primary);
    border-radius: 12px;
    box-shadow:
        0 10px 25px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(212, 165, 116, 0.9);
    z-index: 0;
}

/* Texto de la tarjeta */
.intro-names,
.intro-date {
    position: relative;
    z-index: 1;
}

.intro-names {
    font-family: var(--font-elegant);
    font-size: 2.2rem;
    letter-spacing: 3px;
    color: var(--color-accent);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
    margin-bottom: 0.4rem;
}

.intro-date {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-accent);
    letter-spacing: 4px;
    text-transform: uppercase;
}

/* FLAP SUPERIOR (parte externa crema) */
.intro-envelope-flap {
    position: absolute;
    top: 6%;
    left: 10%;
    right: 10%;
    height: 55%;
    background: var(--color-primary);
    /* usar punta completa para evitar rombo en la punta al rotar */
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    transform-origin: top center;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.35);
    z-index: 2;
    transform-style: preserve-3d;
    backface-visibility: visible;
    animation: flapOpenGreen 1.4s cubic-bezier(0.23, 0.84, 0.41, 1.16) 0.5s forwards;
}

/* Interior del flap (forro damasco) */
.intro-envelope-flap::before {
    content: '';
    position: absolute;
    inset: 7%;
    /* forro damasco: asegurar que cubre todo y se alinea centrado */
    background-image: url('../img/damasco.png');
    background-size: cover;
    background-position: center center;
    clip-path: inherit;
    backface-visibility: hidden;
    transform: rotateX(180deg) translateZ(0);
    /* cara interior para cuando el flap se abre */
}

/* añadir pseudo para dar borde/relieve a la solapa (triángulo) */
.intro-envelope-flap::after {
    content: '';
    position: absolute;
    /* hacerlo un poco más grande que la solapa para crear un contorno */
    top: -6%;
    left: -6%;
    width: 112%;
    height: 112%;
    clip-path: inherit;
    background: var(--color-beige-dark); /* borde/relieve en beige oscuro */
    z-index: 3; /* superponer ligeramente para que el contorno sea claramente visible */
    pointer-events: none;
    transform-origin: center;
    /* drop-shadow respeta la transparencia del clip-path y ayuda a definir el borde */
    filter: drop-shadow(0 10px 22px rgba(0,0,0,0.28));
    /* ligera línea interior para separar con la solapa (sutil) */
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
    opacity: 0.95;
}

/* === ANIMACIONES === */

/* Flap: de cerrado (como sobre verde) a abierto y quedándose arriba */
@keyframes flapOpenGreen {
    0% {
        transform: rotateX(0deg);
        /* cerrado apuntando hacia abajo */
    }

    45% {
        transform: rotateX(-110deg);
        /* apertura */
        box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2);
    }

    100% {
        transform: rotateX(-140deg);
        /* se queda abierto, visible por detrás */
        box-shadow: 0 0 12px rgba(0, 0, 0, 0.25);
    }
}

/* Aparición del bolsillo interior damasco cuando el flap ya va abriéndose */
@keyframes pocketReveal {
    0% {
        opacity: 0;
    }

    40% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

/* Aparición suave de la tarjeta crema con el texto */
@keyframes cardFadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Zoom total del sobre antes de irse y dar paso a la web */
@keyframes envelopeZoom {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(3);
        opacity: 0;
    }
}

/* Fade del overlay completo */
@keyframes introFadeOut {
    0% {
        opacity: 1;
        visibility: visible;
    }

    100% {
        opacity: 0;
        visibility: hidden;
    }
}

/* Responsive fino para móviles */
@media (max-width: 480px) {
    .intro-envelope {
        width: 94vw;
        height: 62vw;
    }

    .intro-envelope::before {
        inset: 12% 8% 12%;
    }

    .intro-envelope-inner {
        inset: 18% 11% 14%;
    }

    .intro-envelope-body {
        inset: 30% 15% 20%;
        padding: 1.6rem 1.1rem;
    }

    .intro-names {
        font-size: 1.8rem;
    }

    .intro-date {
        font-size: 0.85rem;
    }
}

/* Ajustes para la foto en móviles: centrar y ocupar más ancho */
@media (max-width: 768px) {
    #inicio::before {
        width: 90%;
        left: 50%;
        transform: translateX(-50%);
        background-position: center center;
        opacity: 0.28;
    }
}

/* ===== Botón de Música (flotante) ===== */
#music-toggle {
    position: fixed;
    right: 20px;
    bottom: 22px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    /* fondo granate con borde beige para máxima visibilidad */
    background: var(--color-primary);
    border: 2px solid var(--color-accent);
    box-shadow: 0 10px 30px rgba(0,0,0,0.14);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1200;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

#music-toggle:focus{
    outline: none;
    box-shadow: 0 0 0 6px rgba(255,238,220,0.08), 0 12px 36px rgba(0,0,0,0.16);
    transform: translateY(-2px);
}

/* Fondo sutil circular para separar el botón del fondo de la página */
#music-toggle::before{
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) scale(1);
    width: 140%;
    height: 140%;
    border-radius: 50%;
    background: radial-gradient(circle at 34% 32%, rgba(138,45,63,0.14), rgba(138,45,63,0.06) 36%, rgba(138,45,63,0.02) 60%, transparent 65%);
    filter: blur(8px);
    z-index: -1;
    transition: opacity 0.18s ease, transform 0.18s ease, filter 0.18s ease;
    pointer-events: none;
    opacity: 0.9;
}

/* Más visible cuando la música está apagada */
#music-toggle.music-off::before{
    background: radial-gradient(circle at 34% 32%, rgba(138,45,63,0.22), rgba(138,45,63,0.10) 36%, rgba(138,45,63,0.04) 60%, transparent 66%);
    filter: blur(10px);
    transform: translate(-50%, -50%) scale(1.06);
    opacity: 1;
}

/* Menos intrusivo cuando la música está activada */
#music-toggle.music-on::before{
    background: radial-gradient(circle at 34% 32%, rgba(138,45,63,0.06), rgba(138,45,63,0.03) 36%, transparent 58%);
    filter: blur(6px);
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.8;
}

/* Usuarios con reduce motion: eliminar animaciones y reducir efectos */
@media (prefers-reduced-motion: reduce){
    #music-toggle, #music-toggle .music-svg, #music-toggle::before { transition: none !important; animation: none !important; }
    #music-toggle::before { filter: blur(4px); }
}

#music-toggle .music-svg { color: var(--color-accent); transition: color 0.18s ease, opacity 0.2s ease; }

/* States */
#music-toggle.music-off .music-svg { opacity: 1; color: var(--color-accent); }
#music-toggle.music-on .music-svg { opacity: 1; color: var(--color-accent); }
#music-toggle .music-svg .icon-wave { opacity: 0.9; }
#music-toggle.music-off .music-svg .icon-wave { opacity: 0.0; }
#music-toggle.music-on .music-svg .icon-wave { opacity: 1; }
#music-toggle .music-svg .icon-muted { opacity: 0; }
#music-toggle.music-off .music-svg .icon-muted { opacity: 0; }
#music-toggle.music-muted .music-svg .icon-muted { opacity: 1; color: var(--color-accent); }
#music-toggle.music-muted .music-svg .icon-wave { opacity: 0; }

/* --- Resaltar el icono: círculo beige detrás, sombra y mayor contraste --- */
#music-toggle::after{
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-accent); /* beige */
    z-index: 2;
    box-shadow: 0 6px 18px rgba(0,0,0,0.22);
    transition: transform 0.14s ease, box-shadow 0.14s ease, opacity 0.14s ease;
    pointer-events: none;
    opacity: 0.98;
}

/* Colocar el svg por encima y darle color granate para máximo contraste */
#music-toggle .music-svg{
    position: relative;
    z-index: 3;
    color: var(--color-primary);
    width: 22px; height: 22px;
    filter: drop-shadow(0 3px 6px rgba(0,0,0,0.28));
    transition: transform 0.14s ease, filter 0.14s ease;
}

/* Asegurar que los trazos y rellenos del SVG usen explicitamente el granate para el altavoz
   y las ondas; mantenemos la raya de 'mute' en beige para contraste cuando aparezca */
#music-toggle .music-svg .icon-speaker path { fill: var(--color-primary) !important; }
#music-toggle .music-svg .icon-wave path { stroke: var(--color-primary) !important; }
#music-toggle .music-svg .icon-muted path { stroke: var(--color-accent) !important; }

/* Hover: escalar ligeramente el círculo y el icono */
#music-toggle:hover::after{ transform: translate(-50%, -50%) scale(1.06); box-shadow: 0 10px 26px rgba(0,0,0,0.28); }
#music-toggle:hover .music-svg{ transform: scale(1.06); }

/* Mantener buen contraste en estados: si el botón está 'music-off' mostramos el icono más visible */
#music-toggle.music-off::after{ opacity: 1; transform: translate(-50%, -50%) scale(1.06); }
#music-toggle.music-off .music-svg{ filter: drop-shadow(0 4px 8px rgba(0,0,0,0.32)); }

@media (prefers-reduced-motion: reduce){
    #music-toggle::after, #music-toggle .music-svg { transition: none !important; transform: none !important; animation: none !important; }
}

/* ===== Ajustes para estado 'music-on' ===== */
/* Quitar el borde beige cuando la música está activada (solo queda la animación del icono) */
#music-toggle.music-on { border: 0; }

/* Animación sutil de las ondas cuando la música está activa */
#music-toggle.music-on .icon-wave { animation: musicWave 1.25s ease-in-out infinite; transform-origin: center center; }

@keyframes musicWave {
    0% { transform: scale(0.92); opacity: 0.6; }
    50% { transform: scale(1.06); opacity: 1; }
    100% { transform: scale(0.92); opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce){
    #music-toggle.music-on .icon-wave { animation: none !important; }
}

/* Destacar botón cuando la música está APAGADA: pequeño pulso para llamar la atención */
#music-toggle.music-off {
    background: linear-gradient(135deg, rgba(138,45,63,0.06), rgba(138,45,63,0.03));
    border: 1px solid rgba(138,45,63,0.12);
    box-shadow: 0 10px 26px rgba(138,45,63,0.08);
    animation: musicPulse 2.6s ease-in-out infinite;
}

@keyframes musicPulse {
    0% { box-shadow: 0 8px 18px rgba(138,45,63,0.06); transform: translateY(0); }
    50% { box-shadow: 0 18px 42px rgba(138,45,63,0.12); transform: translateY(-3px); }
    100% { box-shadow: 0 8px 18px rgba(138,45,63,0.06); transform: translateY(0); }
}

/* Hover/Focus: más marcado y detener animación para que el usuario no se distraiga */
#music-toggle:hover, #music-toggle:focus {
    transform: translateY(-3px) scale(1.06);
    box-shadow: 0 20px 48px rgba(138,45,63,0.14);
    animation-play-state: paused;
}

/* Estado activo: brillo más notable */
#music-toggle.music-on {
    background: linear-gradient(135deg, rgba(255,255,255,0.02), rgba(138,45,63,0.03));
    box-shadow: 0 12px 34px rgba(138,45,63,0.12);
}

@media (max-width: 480px) {
    #music-toggle { right: 12px; bottom: 18px; width:48px; height:48px; }
}

/* ===== Estética especial para sección de Autobuses (tema granate) ===== */
/* Hace que el bloque sea una tarjeta suave, con opciones más destacadas */
fieldset.form-row {
    /* Estilo acorde a las secciones 'Ceremonia' / 'Celebración' */
    background: linear-gradient(135deg, rgba(101, 43, 41, 0.9) 0%, rgba(128, 73, 62, 0.9) 100%);
    padding: 1rem 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35), inset 0 0 20px rgba(212, 165, 116, 0.08);
    border-left: 5px solid var(--color-accent);
    transition: var(--transition);
}

fieldset.form-row legend {
    /* Mantener estilo visual, pero con peso de fuente normal como el resto de la web */
    font-weight: 400;
    color: var(--color-accent-light);
    padding: 0 0.5rem;
    margin-left: 0.25rem;
    font-size: 1rem;
}

/* Opciones: fila alineada, con hover sutil y espacio */
fieldset.form-row > div {
    display:flex;
    align-items:center;
    gap:0.75rem;
    padding: 0.5rem 0.35rem;
    border-radius: 8px;
    transition: background 0.12s ease, transform 0.08s ease;
}
fieldset.form-row > div:hover { background: rgba(255,255,255,0.04); transform: translateY(-1px); }

/* Checkbox más grande y con color de acento (beige) */
fieldset.form-row input[type="checkbox"] {
    width: 20px; height: 20px; appearance: auto; accent-color: var(--color-accent);
    border-radius: 4px;
}

/* Label con tipografía clara y peso, cambia cuando está seleccionado */
fieldset.form-row label {
    color: var(--color-text-dark);
    /* Alineamos el peso al resto de la página */
    font-weight: 400;
}
fieldset.form-row input[type="checkbox"]:checked + label {
    color: var(--color-accent-light);
}

/* Primer aviso estilizado específico para autobuses */
/* Aviso de autobús: diseño similar a las tarjetas de evento */
#bus-warning.form-warning {
    /* Fondo beige fuerte; el texto en granate como solicitado */
    background-color: var(--color-beige-dark);
    /* Borde izquierdo granate más visible */
    border-left: 6px solid var(--color-primary);
    color: var(--color-primary);
    padding: 0.95rem 1rem;
    border-radius: 6px;
    /* Añadimos una sombra externa granate sutil para dar más presencia */
    box-shadow: 0 8px 24px rgba(58,13,23,0.12), inset 0 0 10px rgba(0,0,0,0.12);
    position: relative;
    /* Texto en peso normal; el <strong> dentro del aviso seguirá en negrita */
    font-weight: 400;
    font-size: 0.98rem;
    display: block;
    transition: var(--transition) transform 160ms ease;
}

/* Estado hover para dar mayor énfasis al aviso */
#bus-warning.form-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(58,13,23,0.18), inset 0 0 12px rgba(0,0,0,0.12);
}

/* Add an inline exclamation icon via pseudo-element */
/* icono más discreto para el aviso */
#bus-warning.form-warning::before {
    content: '';
    display: inline-block;
    width: 28px;
    height: 28px;
    margin-right: 0.6rem;
    vertical-align: middle;
    /* icono: fondo del círculo en granate y símbolo en beige claro para contraste */
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><circle cx='12' cy='12' r='10' fill='%233a0d17'/><path d='M11 7h2v6h-2zM11 15h2v2h-2z' fill='%23e8c9a8'/></svg>");
    background-repeat: no-repeat;
    background-position: center;
    border-radius: 50%;
    flex: 0 0 auto;
}

#bus-warning.form-warning strong { color: var(--color-primary); font-weight: 800; }

@keyframes bus-warning-appear {
    from { transform: translateY(8px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 420px) {
    #bus-warning.form-warning { padding: 0.85rem 0.9rem; font-size: 0.95rem; }
    #bus-warning.form-warning::before { width: 30px; height: 30px; margin-right: 0.5rem; }
}

@media (max-width: 420px) {
    fieldset.form-row > div { padding: 0.45rem 0.25rem; }
    fieldset.form-row legend { font-size: 0.95rem; }
}