/* ==========================================================
   Sillar Studio · Header Gamer HUD
   Variables, barras de energía, menú responsivo y botón centrado
   ========================================================== */

:root {
    --sg-red: #e11d2e;
    --sg-ember: #ff6a1a;
    --sg-gold: #ffc233;
    --sg-magenta: #e60067;
    --sg-dark-bg: rgba(14, 16, 22, 0.95);
    --sg-border-glow: rgba(225, 29, 46, 0.28);
}


/* Keyframes de animación */

@keyframes sg-hdr-shift {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 250% 50%;
    }
}

@keyframes sg-hdr-shine {
    0% {
        transform: translateX(-150%) skewX(-20deg);
    }
    35%,
    100% {
        transform: translateX(250%) skewX(-20deg);
    }
}

@keyframes sg-radar-pulse {
    0%,
    100% {
        transform: scale(1);
        opacity: 0.9;
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        transform: scale(1.15);
        opacity: 1;
        box-shadow: 0 0 0 6px rgba(37, 211, 102, 0);
    }
}


/* Contenedor del Header */

.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: var(--sg-dark-bg);
    border-bottom: 1px solid var(--sg-border-glow);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.65);
    transition: border-color 0.3s ease, background 0.3s ease;
}


/* Línea láser superior animada */

.site-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2.5px;
    background: linear-gradient(90deg, var(--sg-red), var(--sg-ember), var(--sg-gold), var(--sg-magenta), var(--sg-red));
    background-size: 250% 100%;
    animation: sg-hdr-shift 6s linear infinite;
}


/* Barra de navegación interna */

.site-header .bar {
    position: relative;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    min-height: 70px;
}


/* Logotipo / Marca */

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: #fff;
    transition: transform 0.2s ease;
}

.brand:hover {
    transform: translateY(-1px) scale(1.02);
}

.brand svg,
.brand img {
    filter: drop-shadow(0 0 10px rgba(225, 29, 46, 0.45));
    transition: filter 0.25s ease;
}

.brand:hover svg,
.brand:hover img {
    filter: drop-shadow(0 0 14px var(--sg-ember));
}

.brand span {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.brand b {
    font-family: 'Manrope', sans-serif;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    background: linear-gradient(90deg, #fff, #ffe3d3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand small {
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.25em;
    color: var(--sg-ember);
    text-transform: uppercase;
    margin-top: 2px;
}


/* Menú de Navegación (Escritorio) */

.nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav a:not(.nav-cta) {
    position: relative;
    padding: 0.5rem 0.95rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.nav a:not(.nav-cta):hover {
    color: #fff;
    border-color: rgba(255, 106, 26, 0.35);
    background: rgba(255, 106, 26, 0.08);
    box-shadow: 0 0 14px -4px rgba(255, 106, 26, 0.5);
}


/* Enlace Activo */

.nav a[aria-current="page"]:not(.nav-cta) {
    color: #fff;
    border-color: rgba(225, 29, 46, 0.5);
    background: linear-gradient(135deg, rgba(225, 29, 46, 0.16), rgba(255, 106, 26, 0.08));
}

.nav a[aria-current="page"]:not(.nav-cta)::after {
    content: "";
    position: absolute;
    bottom: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 14px;
    height: 2px;
    border-radius: 99px;
    background: var(--sg-ember);
    box-shadow: 0 0 6px var(--sg-ember);
}


/* Botón CTA Gamer */

.nav-cta {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.6rem;
    padding: 0.58rem 1.2rem;
    border-radius: 10px;
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    color: #fff !important;
    background: linear-gradient(110deg, var(--sg-red), var(--sg-ember), var(--sg-magenta), var(--sg-red));
    background-size: 300% 100%;
    animation: sg-hdr-shift 7s linear infinite;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 20px -8px rgba(225, 29, 46, 0.85);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 40%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
    animation: sg-hdr-shine 3.8s ease-in-out infinite;
}

.nav-cta:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 24px -8px rgba(255, 106, 26, 0.95);
}

.nav-cta:active {
    transform: translateY(0) scale(0.98);
}

.nav-cta__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #25d366;
    animation: sg-radar-pulse 2s infinite ease-in-out;
}


/* Botón Hamburguesa Gamer (Centrado Exacto) */

.burger {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--sg-ember);
    box-shadow: 0 0 14px -3px rgba(255, 106, 26, 0.45);
    cursor: pointer;
    overflow: hidden;
    appearance: none;
    -webkit-appearance: none;
}

.burger i {
    display: block;
    width: 22px;
    height: 2.5px;
    margin: 0 auto;
    border-radius: 99px;
    background-color: #ffffff;
    pointer-events: none;
    transform-origin: center;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.burger:hover {
    background: rgba(255, 106, 26, 0.12);
    border-color: var(--sg-gold);
    box-shadow: 0 0 18px rgba(255, 106, 26, 0.65);
}


/* Estado animado 'X' de la hamburguesa */

.burger.is-active i:first-child {
    transform: translateY(4.25px) rotate(45deg);
}

.burger.is-active i:last-child {
    transform: translateY(-4.25px) rotate(-45deg);
}


/* ==========================================================
   Ajustes Responsivos para Móviles (< 860px)
   ========================================================== */

@media (max-width: 860px) {
    .burger {
        display: inline-flex;
        z-index: 1001;
    }
    .site-header .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        box-sizing: border-box;
        flex-direction: column;
        padding: 1.25rem 1.5rem 1.75rem;
        gap: 0.75rem;
        background: rgba(14, 16, 22, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 2px solid var(--sg-border-glow);
        box-shadow: 0 25px 35px rgba(0, 0, 0, 0.85);
        z-index: 999;
    }
    .site-header .nav.is-open {
        display: flex;
    }
    .site-header .nav a:not(.nav-cta) {
        width: 100%;
        box-sizing: border-box;
        padding: 0.85rem 1rem;
        font-size: 1rem;
        text-align: left;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .site-header .nav a[aria-current="page"]:not(.nav-cta)::after {
        display: none;
    }
    .site-header .nav a[aria-current="page"]:not(.nav-cta) {
        border-left: 3px solid var(--sg-ember);
    }
    .nav-cta {
        width: 100%;
        box-sizing: border-box;
        justify-content: center;
        margin: 0.5rem 0 0 0;
        padding: 0.85rem 1rem;
        font-size: 0.95rem;
    }
}


/* Respeto por preferencias de movimiento reducido */

@media (prefers-reduced-motion: reduce) {
    .site-header::before,
    .nav-cta,
    .nav-cta::after,
    .nav-cta__dot {
        animation: none !important;
    }
}