/* ============================================================
   bastidas.studio — NAVBAR · MEGA MENÚ (escritorio) · MENÚ MÓVIL
   Negro (no puro) + crema. Lima solo como acento puntual.
   Compartido por todas las páginas: css/nav.css + js/nav.js
============================================================ */
:root {
    --nav-h: 68px;
    --nav-solid: #0B0D10;
    --nav-border: rgba(244,241,236,0.10);
    --nav-text: #F4F1EC;
    --nav-text-muted: rgba(244,241,236,0.6);
    --nav-hover: rgba(244,241,236,0.08);
    --nav-lime: #FFFFFF;
    --ease-out: cubic-bezier(.22, 1, .36, 1);
}
html { scroll-padding-top: calc(var(--nav-h) + var(--bar-h, 0px) + 16px); }
html.nav-lock, html.nav-lock body { overflow: hidden; }

/* ---------- barra: sólida, siempre visible, negra ---------- */
.navbar {
    position: sticky !important;
    top: var(--bar-h, 0px) !important; left: 0 !important; right: 0 !important;
    width: 100% !important; max-width: none !important;
    margin: 0 !important; padding: 0 !important;
    display: block !important;
    border-radius: 0 !important; border: 0 !important;
    border-bottom: 1px solid var(--nav-border) !important;
    background: var(--nav-solid) !important;
    -webkit-backdrop-filter: none !important; backdrop-filter: none !important;
    box-shadow: none !important; transform: none !important;
    z-index: 1000 !important;
    transition: box-shadow .5s var(--ease-out) !important;
}
.navbar.nav-hidden { transform: none !important; }
.navbar.mega-open { box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6) !important; }

/* logo | links centrados | iniciar sesión (extremo derecho) */
.nav-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 2rem;
    min-height: var(--nav-h);
    padding: 0 max(24px, calc((100% - 1200px) / 2));
    position: relative;
}
.navbar .logo { display: flex; align-items: center; }
.navbar .logo { flex-shrink: 0; }
.navbar .logo-img { height: 40px; width: auto; max-width: none; object-fit: contain; flex-shrink: 0; filter: none !important; }

.navbar .nav-links {
    display: flex; align-items: center; justify-content: center;
    gap: .15rem; margin: 0; padding: 0; list-style: none;
}
/* Los links NO cambian de color al pasar el cursor: solo aparece un fondo sutil */
.navbar .nav-links > li > a,
.navbar .nav-links > li > a:hover,
.navbar .nav-links > li > a:focus-visible {
    color: var(--nav-text) !important;
}
.navbar .nav-links > li > a:not(.nav-cta) {
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: .9rem; font-weight: 500;
    padding: .45rem .9rem; border-radius: 100px;
    background: transparent;
    transition: background .3s ease;
}
.navbar .nav-links > li > a:not(.nav-cta):hover,
.navbar .nav-links > li.is-hover > a:not(.nav-cta) {
    background: var(--nav-hover) !important;
}
.navbar .nav-links > li > a.active {
    background: rgba(244,241,236,0.12) !important;
    color: var(--nav-text) !important;
    padding: .45rem .9rem !important;
}

/* Iniciar sesión: extremo derecho, centrado verticalmente */
.navbar .nav-login {
    justify-self: end;
    display: inline-flex; align-items: center; gap: .45rem;
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: .88rem; font-weight: 500;
    color: var(--nav-text) !important;
    padding: .45rem .5rem; border-radius: 100px;
    opacity: .85; transition: opacity .3s ease;
}
.navbar .nav-login:hover { opacity: 1; }
.navbar .nav-login svg { flex-shrink: 0; opacity: .8; }

/* Comenzar: invertido (crema sobre negro) para que resalte, junto a las secciones */
.navbar .nav-links > li > a.nav-cta {
    display: inline-flex; align-items: center; white-space: nowrap;
    line-height: 1.2;
    margin-left: .6rem;
    padding: .45rem 1.1rem;
    border-radius: 100px;
    background: #F4F1EC !important;
    color: #0B0D10 !important;
    border: 0; box-shadow: none;
    transition: background .3s ease, transform .3s var(--ease-out);
}
.navbar .nav-links > li > a.nav-cta:hover { background: #FFFFFF !important; transform: translateY(-1px); }
.nav-cta-title { font-weight: 600; font-size: .9rem; color: #0B0D10; }

/* ---------- la página detrás se desenfoca al abrir el menú ---------- */
.nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .25s var(--ease-out), visibility 0s linear .25s;
    z-index: 999;
}
.navbar.mega-open + .nav-backdrop {
    opacity: 1;
    visibility: visible;
    transition: opacity .25s var(--ease-out), visibility 0s;
}

/* ---------- panel a todo el ancho, también negro ---------- */
.mega {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .28s var(--ease-out);
    background: var(--nav-solid);
}
.navbar.mega-open .mega { grid-template-rows: 1fr; }
.mega-clip { overflow: hidden; min-height: 0; }
.mega-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.6rem 24px 2.8rem;
    display: grid;                 /* paneles apilados: la altura es la del más alto */
    border-top: 1px solid var(--nav-border);
}
.mega-pane {
    grid-area: 1 / 1;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .15s ease, visibility 0s linear .15s;
}
.mega-pane.is-active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity .2s ease, visibility 0s;
}
.mega-col h4 {
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--nav-text-muted);
    margin: 0 0 1rem;
}
.mega-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.mega-link {
    display: block;
    text-decoration: none;
    color: var(--nav-text);
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.3rem 0;
    transition: color .25s ease, transform .35s var(--ease-out);
}
.mega-link:hover { color: var(--nav-lime); transform: translateX(4px); }
.mega-link.lg {
    font-size: clamp(1.3rem, 2vw, 1.6rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.25;
    padding: 0.2rem 0;
}
.mega-link small {
    display: inline-block;
    margin-left: .6rem;
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--nav-text-muted);
    vertical-align: middle;
}

/* ---------- panel Biblioteca: 6 categorías ---------- */
.mega-pane--lib {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 1.6rem 1.75rem;
}
.mega-head {
    grid-column: 1 / -1;
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid var(--nav-border);
}
.mega-head .mega-link.lg { padding: 0; }
.mega-head span {
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: .8rem;
    color: var(--nav-text-muted);
}
.mega-col--cat h4 {
    display: flex;
    gap: .55rem;
    align-items: baseline;
    margin-bottom: .8rem;
}
.mega-col--cat h4 a {
    color: rgba(244,241,236,0.8);
    text-decoration: none;
    font-weight: 600;
    transition: color .25s ease;
}
.mega-col--cat h4 a:hover { color: var(--nav-lime); }
.mega-col--cat h4 i {
    font-style: normal;
    font-family: var(--font-mono, 'Satoshi', sans-serif);
    font-size: .65rem;
    color: var(--nav-lime);
}
.mega-col--cat .mega-link { font-weight: 500; line-height: 1.3; padding: 0.28rem 0; }

/* ---------- entrada escalonada con blur ---------- */
.mega-item {
    opacity: 0;
    transform: translateY(-10px);
    filter: blur(8px);
    transition: opacity .15s ease, transform .15s ease, filter .15s ease;
}
.mega-pane.is-active .mega-item {
    opacity: 1;
    transform: none;
    filter: blur(0);
    transition: opacity .3s var(--ease-out), transform .35s var(--ease-out), filter .3s var(--ease-out);
    transition-delay: calc(15ms + var(--i, 0) * 20ms);
}



/* ============================================================
   MÓVIL — menú a pantalla completa, minimalista, negro
============================================================ */
.menu-btn { display: none; }
.m-menu { display: none; }

@media (max-width: 900px) {
    .mega, .nav-backdrop { display: none !important; }
    .navbar .nav-links, .navbar .nav-login { display: none !important; }
    .nav-inner { grid-template-columns: 1fr auto; gap: 1rem; }

    .menu-btn {
        display: inline-flex; flex-direction: column; justify-content: center; align-items: center;
        gap: 6px; width: 44px; height: 44px; margin-right: -10px;
        background: none; border: 0; cursor: pointer; padding: 0;
        -webkit-tap-highlight-color: transparent;
    }
    .menu-btn span {
        display: block; width: 22px; height: 1.5px; border-radius: 2px;
        background: var(--nav-text);
        transition: transform .45s var(--ease-out), opacity .3s ease;
    }
    .navbar.m-open .menu-btn span:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
    .navbar.m-open .menu-btn span:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }

    .m-menu {
        display: flex; flex-direction: column; justify-content: space-between;
        position: fixed; left: 0; right: 0; top: calc(var(--nav-h) + var(--bar-h, 0px));
        height: calc(100vh - var(--nav-h) - var(--bar-h, 0px)); height: calc(100dvh - var(--nav-h) - var(--bar-h, 0px));
        padding: 1.25rem 24px calc(1.5rem + env(safe-area-inset-bottom, 0px));
        background: var(--nav-solid);
        overflow-y: auto; overscroll-behavior: contain;
        opacity: 0; visibility: hidden;
        transition: opacity .22s var(--ease-out), visibility 0s linear .22s;
        z-index: 1001;
    }
    .navbar.m-open .m-menu { opacity: 1; visibility: visible; transition: opacity .22s var(--ease-out), visibility 0s; }

    .m-links { list-style: none; margin: 0; padding: 0; }
    .m-links li {
        border-bottom: 1px solid var(--nav-border);
        opacity: 0; transform: translateY(12px);
        transition: opacity .3s ease, transform .3s ease;
    }
    .navbar.m-open .m-links li {
        opacity: 1; transform: none;
        transition: opacity .3s var(--ease-out), transform .35s var(--ease-out);
        transition-delay: calc(30ms + var(--i, 0) * 30ms);
    }
    .m-links a {
        display: flex; align-items: center; justify-content: space-between;
        padding: 1.05rem 0;
        font-family: var(--font-body, 'Inter', system-ui, sans-serif);
        font-size: clamp(1.5rem, 6.5vw, 1.9rem); font-weight: 600; letter-spacing: -0.02em;
        color: var(--nav-text) !important;
    }
    .m-links a::after {
        content: ''; width: 7px; height: 7px; border-radius: 50%;
        background: var(--nav-lime); opacity: 0; transition: opacity .3s ease;
    }
    .m-links a[aria-current="page"]::after { opacity: 1; }

    .m-actions {
        display: grid; gap: .75rem; padding-top: 2rem;
        opacity: 0; transform: translateY(12px);
        transition: opacity .3s ease, transform .3s ease;
    }
    .navbar.m-open .m-actions {
        opacity: 1; transform: none;
        transition: opacity .3s var(--ease-out) .15s, transform .35s var(--ease-out) .15s;
    }
    .m-actions a {
        display: flex; align-items: center; justify-content: center;
        min-height: 52px; border-radius: 100px;
        font-family: var(--font-body, 'Inter', system-ui, sans-serif);
        font-size: 1rem; font-weight: 600;
    }
    .m-actions .m-cta { background: #F4F1EC; color: #0B0D10 !important; }
    .m-actions .m-login { border: 1px solid rgba(244,241,236,.28); color: var(--nav-text) !important; }
}

@media (prefers-reduced-motion: reduce) {
    .mega, .nav-backdrop { transition-duration: .15s !important; }
    .mega-pane { transition-duration: .1s !important; }
    .mega-item { transition: opacity .15s ease !important; transition-delay: 0s !important; transform: none !important; filter: none !important; }
    .m-menu, .m-actions { transition-duration: .15s !important; transition-delay: 0s !important; }
    .m-links li { transition: opacity .15s ease !important; transition-delay: 0s !important; transform: none !important; }
    .menu-btn span { transition: none !important; }
}