:root {
    --vino: #7b1534;
    --vino-oscuro: #4f0d21;
    --vino-claro: #a61d47;
    --dorado: #d4af37;
    --gris-fondo: #f4f6f9;
    --gris-claro: #ffffff;
    --gris-borde: #e5e7eb;
    --texto: #1f2937;
    --texto-secundario: #6b7280;
    --sombra: 0 10px 30px rgba(0, 0, 0, 0.08);
    --sombra-hover: 0 18px 40px rgba(0, 0, 0, 0.15);
    --radio: 20px;
    --transicion: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, #fafafa 0%, var(--gris-fondo) 100%);
    color: var(--texto);
    line-height: 1.7;
}

/* ===== HEADER HERO MEJORADO ===== */
header {
    background:
        linear-gradient(135deg, rgba(123, 21, 52, 0.88), rgba(79, 13, 33, 0.95));
    color: white;
    text-align: center;
    padding: 120px 20px 100px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
}

/* Capa decorativa con brillos */
header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(212, 175, 55, 0.22), transparent 35%),
        radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.08), transparent 30%),
        radial-gradient(circle at 50% 100%, rgba(255, 255, 255, 0.06), transparent 40%);
    pointer-events: none;
}

/* Línea dorada inferior */
header::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 180px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--dorado), transparent);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.45);
}

header h1,
header p {
    position: relative;
    z-index: 1;
}

header h1 {
    font-size: 3.4rem;
    font-weight: 900;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
    text-transform: uppercase;
    text-shadow:
        0 4px 12px rgba(0, 0, 0, 0.25),
        0 0 25px rgba(0, 0, 0, 0.12);
}

header p {
    font-size: 1.2rem;
    max-width: 760px;
    margin: 0 auto;
    opacity: 0.96;
    line-height: 1.8;
}

/* ===== NAVBAR PREMIUM ===== */
nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(79, 13, 33, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    padding: 14px 20px;
    text-align: center;
}

nav a {
    position: relative;
    display: inline-block;
    color: white;
    text-decoration: none;
    margin: 0 8px;
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
}

/* Fondo suave al pasar el mouse */
nav a:hover {
    background: rgba(255, 255, 255, 0.10);
    color: var(--dorado);
    transform: translateY(-2px);
}

/* Línea inferior animada */
nav a::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 6px;
    height: 2px;
    background: var(--dorado);
    border-radius: 999px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
}

nav a:hover::after {
    transform: scaleX(1);
}


/* ===== CONTENEDOR GENERAL ===== */
.container {
    width: min(92%, 1200px);
    margin: 50px auto;
}

/* ===== SECCIONES ===== */
section {
    margin-bottom: 60px;
}

section h2 {
    color: var(--vino);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 30px;
    position: relative;
    padding-left: 18px;
}

section h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 5px;
    bottom: 5px;
    width: 6px;
    border-radius: 999px;
    background: linear-gradient(to bottom, var(--dorado), #f7d76d);
}

/* ===== TARJETAS ===== */
.tarjetas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.tarjeta {
    background: var(--gris-claro);
    border-radius: var(--radio);
    overflow: hidden;
    box-shadow: var(--sombra);
    border: 1px solid rgba(123, 21, 52, 0.06);
    transition: var(--transicion);
}

.tarjeta:hover {
    transform: translateY(-10px);
    box-shadow: var(--sombra-hover);
}

.tarjeta img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.tarjeta .contenido {
    padding: 24px;
}

.tarjeta h3 {
    color: var(--vino);
    font-size: 1.35rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.tarjeta p {
    color: var(--texto-secundario);
    margin-bottom: 10px;
}

/* ===== BOTONES ===== */
.boton {
    display: inline-block;
    margin-top: 20px;
    background: linear-gradient(135deg, var(--vino), var(--vino-oscuro));
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: 0.3px;
    box-shadow: 0 8px 20px rgba(123, 21, 52, 0.25);
    transition: var(--transicion);
}

.boton:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(123, 21, 52, 0.35);
}

/* ===== TABLAS ===== */
.tabla-contenedor {
    background: white;
    padding: 30px;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

th,
td {
    padding: 14px 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--gris-borde);
}

th {
    background: linear-gradient(135deg, var(--vino), var(--vino-oscuro));
    color: white;
    font-weight: 700;
    position: sticky;
    top: 0;
}

tr:nth-child(even) {
    background: #fafafa;
}

tr:hover {
    background: rgba(123, 21, 52, 0.03);
}

/* ===== FOOTER ===== */
footer {
    background: linear-gradient(135deg, var(--vino-oscuro), #320715);
    color: white;
    text-align: center;
    padding: 35px 20px;
    margin-top: 70px;
    font-size: 0.95rem;
    box-shadow: 0 -6px 20px rgba(0, 0, 0, 0.08);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    header {
        padding: 90px 20px 70px;
    }

    header h1 {
        font-size: 2.2rem;
        letter-spacing: 0.5px;
    }

    header p {
        font-size: 1rem;
        line-height: 1.6;
    }

    nav {
        padding: 10px;
    }

    nav a {
        margin: 4px;
        padding: 8px 14px;
        font-size: 0.88rem;
    }
}


#opiniones {
    margin-top: 80px;
}

#opiniones .tabla-contenedor {
    max-width: 900px;
    margin: 0 auto;
}

#opiniones form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

#opiniones label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--vino);
    font-size: 0.95rem;
}

#opiniones input,
#opiniones textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--texto);
    background: #ffffff;
    transition: all 0.3s ease;
    outline: none;
}

#opiniones input:focus,
#opiniones textarea:focus {
    border-color: var(--vino);
    box-shadow: 0 0 0 4px rgba(123, 21, 52, 0.10);
}

#opiniones textarea {
    resize: vertical;
    min-height: 140px;
}

#opiniones .mensaje-exito {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-weight: 600;
}

#opiniones .acciones-opinion {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
}

#opiniones .acciones-opinion .boton {
    margin-top: 0;
}

/* Responsive */
@media (max-width: 768px) {
    #opiniones .tabla-contenedor {
        padding: 20px;
    }

    #opiniones input,
    #opiniones textarea {
        padding: 12px 14px;
        font-size: 0.95rem;
    }

    #opiniones .acciones-opinion {
        flex-direction: column;
    }

    #opiniones .acciones-opinion .boton {
        width: 100%;
        text-align: center;
    }
}