/* =================================================================
   glosario.css  —  Glosario ilustrado del catálogo de aves UFPS
   Identidad visual: rojo institucional #D30F23, blancos, Roboto Slab.
   Totalmente responsive: 1024 / 768 / 600 / 480
   ================================================================= */

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

:root {
    --rojo-principal: #D30F23;
    --rojo-oscuro:    #A30B1B;
    --rojo-brillante: #E03143;
    --blanco:         #ffffff;
    --gris-suave:     #F2F0F1;
    --gris-claro:     #E4E1E3;
    --texto-oscuro:   #1F1B1C;
    --gris-texto:     #6B6768;
}

body {
    background: #c9c9c9;
    font-family: 'Roboto Slab', serif;
    color: var(--texto-oscuro);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ============== HERO SUPERIOR ============== */
.hero-glosario {
    position: relative;
    width: 100%;
    margin-top: 65px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--rojo-oscuro) 0%, var(--rojo-principal) 60%, var(--rojo-brillante) 100%);
    box-shadow: 0 8px 24px rgba(211,15,35,0.28);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 30px 16px 30px;
    color: var(--blanco);
}

.hero-glosario::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -10%;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    pointer-events: none;
}

.hero-glosario::after {
    content: "";
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(0,0,0,0.08);
    pointer-events: none;
}

.hero-info {
    text-align: center;
    z-index: 2;
}

.hero-info h1 {
    font-family: 'Roboto Slab', serif;
    font-size: 2.3rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--blanco);
}

.hero-info .hero-subtitulo {
    display: block;
    font-family: 'Roboto Slab', serif;
    font-style: italic;
    font-size: 1rem;
    opacity: 0.85;
    margin-top: 4px;
    font-weight: 400;
}

/* ============== FILTROS ============== */
.glosario-filtros {
    max-width: 1200px;
    margin: 30px auto 10px;
    padding: 0 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    font-family: 'Roboto Slab', serif;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--texto-oscuro);
    background: var(--blanco);
    border: 2px solid var(--gris-claro);
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.25s ease;
    line-height: 1;
    white-space: nowrap;
}

.chip:hover {
    border-color: var(--rojo-principal);
    color: var(--rojo-principal);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(211,15,35,0.18);
}

.chip.activo {
    background: linear-gradient(135deg, var(--rojo-oscuro), var(--rojo-principal));
    border-color: var(--rojo-principal);
    color: var(--blanco);
    box-shadow: 0 4px 14px rgba(211,15,35,0.35);
}

.chip-contador {
    background: rgba(0,0,0,0.08);
    border-radius: 999px;
    padding: 2px 9px;
    font-size: 0.75rem;
    font-weight: 700;
}

.chip.activo .chip-contador {
    background: rgba(255,255,255,0.25);
    color: var(--blanco);
}

/* ============== CONTENEDOR ============== */
.contenedor-glosario {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 20px 80px 20px;
}

/* ============== BLOQUE POR CATEGORÍA ============== */
.bloque-categoria {
    margin-bottom: 50px;
    scroll-margin-top: 90px;
}

.titulo-categoria {
    font-size: 1.5rem;
    color: var(--rojo-principal);
    margin-bottom: 24px;
    text-transform: uppercase;
    font-weight: 700;
    text-align: center;
    letter-spacing: 1px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.titulo-categoria::before,
.titulo-categoria::after {
    content: "";
    display: inline-block;
    flex: 0 1 60px;
    max-width: 60px;
    height: 3px;
    background: var(--rojo-principal);
    border-radius: 2px;
}

.contador-categoria {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--gris-texto);
    background: var(--gris-suave);
    border-radius: 999px;
    padding: 4px 12px;
    text-transform: none;
    letter-spacing: 0;
}

/* ============== GRID DE TARJETAS ============== */
.grid-glosario {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

/* ============== TARJETA ============== */
.tarjeta-glosario {
    position: relative;
    background: var(--blanco);
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(0,0,0,0.10);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    animation: tarjetaEntrar 0.8s ease-out forwards;
    outline: none;
}

@keyframes tarjetaEntrar {
    0%   { opacity: 0; transform: translateY(28px) scale(0.98); }
    100% { opacity: 1; transform: translateY(0)    scale(1); }
}

.tarjeta-glosario:hover,
.tarjeta-glosario:focus-visible {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(211,15,35,0.28);
}

.tarjeta-imagen {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--gris-claro);
}

.tarjeta-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.55s ease;
}

.tarjeta-glosario:hover .tarjeta-imagen img,
.tarjeta-glosario:focus-visible .tarjeta-imagen img {
    transform: scale(1.08);
}

.tarjeta-pie {
    padding: 14px 16px 16px;
    text-align: center;
    background: var(--blanco);
    border-top: 2px solid var(--gris-suave);
}

.tarjeta-titulo {
    font-family: 'Roboto Slab', serif;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--texto-oscuro);
    line-height: 1.3;
}

/* Lupa flotante que aparece en hover */
.tarjeta-lupa {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--rojo-oscuro), var(--rojo-principal));
    color: var(--blanco);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    opacity: 0;
    transform: scale(0.6) rotate(-30deg);
    transition: all 0.35s ease;
    pointer-events: none;
}

.tarjeta-glosario:hover .tarjeta-lupa,
.tarjeta-glosario:focus-visible .tarjeta-lupa {
    opacity: 1;
    transform: scale(1) rotate(0);
}

/* ============== ESTADO VACÍO ============== */
.glosario-vacio {
    text-align: center;
    padding: 60px 30px;
    color: var(--texto-oscuro);
    font-size: 1.1rem;
    background: var(--blanco);
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.10);
    max-width: 600px;
    margin: 40px auto;
}

.glosario-vacio-sub {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--gris-texto);
}

.glosario-vacio code {
    background: var(--gris-suave);
    padding: 2px 8px;
    border-radius: 5px;
    color: var(--rojo-principal);
}

/* ============== MODAL LIGHTBOX ============== */
.modal-glosario {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0,0,0,0.92);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-glosario.activo {
    display: flex;
    opacity: 1;
}

.modal-contenido {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: scale(0.94);
    transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-glosario.activo .modal-contenido {
    transform: scale(1);
}

.modal-imagen {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    background: var(--gris-claro);
}

.modal-info {
    margin-top: 16px;
    text-align: center;
    color: var(--blanco);
}

.modal-categoria {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--rojo-oscuro), var(--rojo-principal));
    color: var(--blanco);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 10px;
}

.modal-nombre {
    font-family: 'Roboto Slab', serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--blanco);
    text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}

/* ============== CONTROLES MODAL ============== */
.modal-cerrar {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.25);
    border-radius: 50%;
    color: var(--blanco);
    cursor: pointer;
    transition: all 0.25s ease;
    backdrop-filter: blur(6px);
}

.modal-cerrar:hover {
    background: var(--rojo-principal);
    border-color: var(--rojo-principal);
    transform: rotate(90deg);
}

.modal-flecha {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.25);
    border-radius: 50%;
    color: var(--blanco);
    cursor: pointer;
    transition: all 0.25s ease;
    backdrop-filter: blur(6px);
}

.modal-flecha:hover {
    background: var(--rojo-principal);
    border-color: var(--rojo-principal);
    transform: translateY(-50%) scale(1.08);
}

.modal-flecha-prev { left: 20px; }
.modal-flecha-next { right: 20px; }

.modal-contador {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255,255,255,0.15);
    color: var(--blanco);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    backdrop-filter: blur(6px);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 1024px) {
    .grid-glosario { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
}

@media (max-width: 768px) {
    .hero-info h1 { font-size: 1.8rem; }
    .hero-info .hero-subtitulo { font-size: 0.9rem; }

    .glosario-filtros { gap: 8px; padding: 0 16px; }
    .chip { padding: 8px 14px; font-size: 0.82rem; }

    .titulo-categoria { font-size: 1.25rem; }
    .titulo-categoria::before,
    .titulo-categoria::after { max-width: 30px; }

    .grid-glosario { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
    .tarjeta-titulo { font-size: 0.88rem; }

    .modal-flecha { width: 42px; height: 42px; }
    .modal-flecha-prev { left: 10px; }
    .modal-flecha-next { right: 10px; }
    .modal-nombre { font-size: 1.2rem; }
    .modal-cerrar { width: 40px; height: 40px; top: 14px; right: 14px; }
}

@media (max-width: 600px) {
    .grid-glosario { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .tarjeta-lupa { width: 32px; height: 32px; top: 8px; right: 8px; }
    .tarjeta-pie { padding: 10px; }
    .tarjeta-titulo { font-size: 0.82rem; }

    .modal-flecha { width: 38px; height: 38px; }
    .modal-imagen { max-height: 70vh; }
    .modal-nombre { font-size: 1rem; }
    .modal-categoria { font-size: 0.65rem; padding: 4px 10px; }
}

@media (max-width: 480px) {
    .grid-glosario { grid-template-columns: 1fr; }
    .contenedor-glosario { padding: 14px 14px 60px; }
    .hero-glosario { padding: 22px 20px 14px; }
    .hero-info h1 { font-size: 1.6rem; }
    .modal-flecha { width: 36px; height: 36px; }
    .modal-flecha-prev { left: 6px; }
    .modal-flecha-next { right: 6px; }
}

@media (prefers-reduced-motion: reduce) {
    .tarjeta-glosario,
    .modal-contenido {
        animation: none !important;
        transition: none !important;
    }
}

*, *::before, *::after {
    font-family: 'Roboto Slab', serif !important;
}