/* Global base + header. Loaded on every page.
   La fuente Montserrat se carga vía <link> en el <head> (header.php). */

:root {
    --bg-dark:#292927;         /* Carbón del fondo del logo */
    --blue-cobalt:#125cc4;     /* Azul cobalto de las sillas y branding */
    --blue-hover:#0f4ba3;      /* Azul un poco más oscuro para el hover */
    --text-white:#ffffff;      /* Texto blanco puro */
    --text-gray:#b3b3b3;       /* Texto gris para enlaces inactivos */

    /* Variables heredadas usadas por el resto del sitio */
    --bg:#15171a;
    --fg:#f5f5f5;
    --accent:#2f6bff;
    --accent-soft:#7da6ff;
    --silver:#cdd3da;
    --silver-bright:#eef2f6;
    --navy:#1b2940;
    --navy-deep:#121b2c;
    --royal:#1e3fc4;
    --royal-line:#3f63e6;
    --rule:rgba(47,107,255,.45);
}
* { box-sizing: border-box; }
body {
    margin:0;
    min-height:100vh;
    display:flex;
    flex-direction:column;
    font-family: 'Montserrat', system-ui, sans-serif;
    background:
        linear-gradient(rgba(12,18,32,.80), rgba(12,18,32,.90)),
        url('/img/background.png') center center / cover no-repeat fixed,
        var(--bg);
    color:var(--fg);
    line-height:1.6;
}
a { color:var(--accent); }
main { flex:1 0 auto; width:100%; max-width:900px; margin:0 auto; padding:2.5rem 2rem; }

/* ---------- Header ---------- */
.site-header {
    background-color: var(--bg-dark);
    border-bottom: 2px solid rgba(18, 92, 196, 0.2); /* Sutil línea azul abajo */
    padding: 15px 0;
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 1000;
    font-family: 'Montserrat', sans-serif;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* Contenedor alineado */
.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.header-logo img {
    height: 90px;
    width: auto;
    display: block;
    transition: transform 0.3s ease;
}
.header-logo img:hover {
    transform: scale(1.02);
}

/* Menú de navegación */
.header-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 30px;
}
.header-nav .nav-link {
    text-decoration: none;
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}
.header-nav .nav-link:hover,
.header-nav .nav-link.active {
    color: var(--blue-cobalt);
}

/* Botón de reserva (CTA) */
.btn-book {
    background-color: var(--blue-cobalt);
    color: var(--text-white);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 12px 24px;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(18, 92, 196, 0.4);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    display: inline-block;
}
.btn-book:hover {
    background-color: var(--blue-hover);
    box-shadow: 0 6px 20px rgba(18, 92, 196, 0.6);
    transform: translateY(-1px);
}
.btn-book:active {
    transform: translateY(1px);
}

/* ---------- Menú hamburguesa (oculto en escritorio) ---------- */
.nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    cursor: pointer;
}
.nav-burger span {
    display: block;
    width: 26px;
    height: 3px;
    border-radius: 3px;
    background: var(--text-white);
    transition: transform .25s ease, opacity .25s ease;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
    }

    /* Muestra las tres rallitas y empújalas a la derecha */
    .nav-burger {
        display: flex;
        margin-left: auto;
    }

    /* Menú y botón colapsados por defecto */
    .header-nav,
    .header-cta {
        flex-basis: 100%;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height .3s ease, opacity .3s ease, padding .3s ease;
    }

    .header-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 18px;
    }

    .header-cta {
        text-align: center;
    }

    /* Al marcar el checkbox, se despliega */
    .nav-toggle:checked ~ .header-nav {
        max-height: 360px;
        opacity: 1;
        padding-top: 18px;
    }
    .nav-toggle:checked ~ .header-cta {
        max-height: 120px;
        opacity: 1;
        padding-top: 16px;
    }

    /* Animación de las rallitas a "X" */
    .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
    .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}
