/* PREMIUM NAV — sticky · blur · animated
 * Extraído desde includes/header.php (era inline). Cacheable: Expires 1 month.
 */
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; margin: 0; }

.main-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.78);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: background 360ms cubic-bezier(0.16,1,0.3,1),
                box-shadow 360ms cubic-bezier(0.16,1,0.3,1),
                border-color 360ms cubic-bezier(0.16,1,0.3,1);
}
.main-header.is-scrolled {
    background: rgba(255,255,255,0.94);
    box-shadow: 0 1px 12px -2px rgba(0,0,0,0.08);
    border-color: rgba(0,0,0,0.10);
}
.header-flex {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 1200px; margin: 0 auto; padding: 14px 24px; gap: 32px;
}
.header-logo {
    display: inline-flex; align-items: center; gap: 10px;
    text-decoration: none;
    transition: transform 240ms cubic-bezier(0.16,1,0.3,1);
}
.header-logo:hover { transform: scale(1.03); }
.header-logo .logo-img {
    height: 38px; width: auto; display: block;
    filter: drop-shadow(0 2px 6px rgba(234,88,12,0.18));
}
.header-brand-text {
    display: flex; flex-direction: column; line-height: 1.1; letter-spacing: -0.012em;
}
.header-brand-name { font-size: 16px; font-weight: 700; color: #1d1d1f; }
.header-brand-tag { font-size: 11px; font-weight: 500; color: #86868b; letter-spacing: 0.04em; }

.menu-toggle {
    display: none; width: 38px; height: 38px;
    border: 1px solid rgba(0,0,0,0.10); border-radius: 10px;
    background: rgba(255,255,255,0.6);
    cursor: pointer; padding: 0; position: relative;
}
.menu-toggle .menu-icon {
    font-size: 0; line-height: 0; position: absolute; inset: 0;
}
.menu-toggle .menu-icon::before,
.menu-toggle .menu-icon::after {
    content: ''; position: absolute; left: 50%;
    width: 18px; height: 1.8px;
    background: #1d1d1f; border-radius: 2px;
    transform: translateX(-50%);
    transition: transform 320ms cubic-bezier(0.16,1,0.3,1),
                top 320ms cubic-bezier(0.16,1,0.3,1);
}
.menu-toggle .menu-icon::before { top: 14px; }
.menu-toggle .menu-icon::after  { top: 22px; }
.menu-toggle.is-open .menu-icon::before { top: 18px; transform: translateX(-50%) rotate(45deg); }
.menu-toggle.is-open .menu-icon::after  { top: 18px; transform: translateX(-50%) rotate(-45deg); }

.main-nav { flex: 1; }
.main-nav ul {
    display: flex; align-items: center; justify-content: flex-end;
    gap: 4px; list-style: none; margin: 0; padding: 0;
}
.main-nav li { list-style: none; }
.main-nav a:not(.btn-register):not(.btn-logout) {
    position: relative; display: inline-flex; align-items: center;
    padding: 9px 14px; color: #1d1d1f; text-decoration: none;
    font-size: 14px; font-weight: 500; letter-spacing: -0.005em;
    border-radius: 8px;
    transition: color 220ms ease, background 220ms ease;
}
.main-nav a:not(.btn-register):not(.btn-logout):hover {
    color: #ea580c; background: rgba(234,88,12,0.06);
}
.main-nav a.is-active { color: #ea580c; background: rgba(234,88,12,0.08); }
.main-nav a:not(.btn-register):not(.btn-logout)::after {
    content: ''; position: absolute; left: 14px; right: 14px; bottom: 5px;
    height: 1.5px;
    background: linear-gradient(90deg, #ea580c, #ec4899);
    border-radius: 2px;
    transform: scaleX(0); transform-origin: left;
    transition: transform 360ms cubic-bezier(0.16,1,0.3,1);
}
.main-nav a:not(.btn-register):not(.btn-logout):hover::after,
.main-nav a.is-active::after { transform: scaleX(1); }

.btn-register {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 18px; margin-left: 6px;
    background: linear-gradient(135deg, #ea580c 0%, #f59e0b 50%, #ec4899 100%);
    background-size: 200% 200%;
    color: #ffffff !important;
    font-size: 13.5px; font-weight: 600;
    text-decoration: none; border-radius: 999px;
    box-shadow: 0 4px 12px -2px rgba(234,88,12,0.40);
    transition: transform 280ms cubic-bezier(0.34,1.56,0.64,1), box-shadow 280ms ease;
    animation: nav-grad-shift 6s ease-in-out infinite;
}
.btn-register:hover {
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 8px 20px -4px rgba(234,88,12,0.55);
}
@keyframes nav-grad-shift {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}

.btn-logout {
    display: inline-flex; padding: 9px 14px;
    background: rgba(0,0,0,0.04); color: #1d1d1f !important;
    font-size: 13.5px; font-weight: 500; text-decoration: none; border-radius: 8px;
    transition: background 220ms ease, color 220ms ease;
}
.btn-logout:hover { background: rgba(220,38,38,0.10); color: #dc2626 !important; }

.user-greeting {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 12px; margin-left: 8px;
    background: linear-gradient(135deg, rgba(234,88,12,0.08), rgba(236,72,153,0.08));
    border: 1px solid rgba(234,88,12,0.18);
    border-radius: 999px;
    color: #ea580c; font-size: 12.5px; font-weight: 600; letter-spacing: -0.005em;
}
.user-greeting::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: #16a34a; box-shadow: 0 0 8px rgba(22,163,74,0.55);
}

@media (max-width: 900px) { .header-brand-text { display: none; } }
@media (max-width: 768px) {
    .menu-toggle { display: inline-flex !important; align-items: center; justify-content: center; }
    /* CRÍTICO: override logo.css que tiene .main-nav { display: none } en mobile.
       Usamos display: block siempre + opacity/pointer-events para mostrar/ocultar. */
    .main-nav {
        display: block !important;
        position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid rgba(0,0,0,0.06);
        border-bottom: 1px solid rgba(0,0,0,0.06);
        box-shadow: 0 12px 32px -10px rgba(0,0,0,0.12);
        padding: 14px 16px;
        opacity: 0; transform: translateY(-12px); pointer-events: none;
        visibility: hidden;
        transition: opacity 280ms cubic-bezier(0.16,1,0.3,1),
                    transform 280ms cubic-bezier(0.16,1,0.3,1),
                    visibility 0s linear 280ms;
    }
    .main-nav.is-open {
        opacity: 1; transform: translateY(0);
        pointer-events: auto; visibility: visible;
        transition: opacity 280ms cubic-bezier(0.16,1,0.3,1),
                    transform 280ms cubic-bezier(0.16,1,0.3,1),
                    visibility 0s linear 0s;
    }
    .main-nav ul { display: flex !important; flex-direction: column; align-items: stretch; gap: 2px; }
    .main-nav a:not(.btn-register):not(.btn-logout),
    .btn-register, .btn-logout {
        justify-content: flex-start; width: 100%; padding: 14px 16px; font-size: 15px;
    }
    .btn-register { justify-content: center; margin-top: 8px; margin-left: 0; }
    .user-greeting { margin-left: 0; justify-content: center; margin-top: 8px; }
}