/* ==========================================================================
   BOREAL FLOW — SITE HEADER + MEGA MENU (por objetivo)
   Ruta destino: assets/css/site-header.css  (SUSTITUYE al archivo anterior)
   ========================================================================== */

:root {
    --bf-header-h: 76px;
    --bf-header-h-mobile: 64px;
    --bf-panel-soft: #FAFBFC;
}

/* --------------------------------------------------------------------------
   0. COMPATIBILIDAD CON SECCIONES STICKY EXISTENTES
   scroll-horizontal-projects (.shp-sticky), scrollytelling-pro
   (.sp-sticky-inner) y scrollytelling básico (.sticky-inner) usan top:0.
   -------------------------------------------------------------------------- */
.shp-sticky,
.sp-sticky-inner,
.sticky-inner {
    top: var(--bf-header-h) !important;
}

.scroll-progress-bar {
    top: var(--bf-header-h) !important;
}

@media (max-width: 768px) {
    .shp-sticky,
    .sp-sticky-inner,
    .sticky-inner {
        top: var(--bf-header-h-mobile) !important;
    }
    .scroll-progress-bar {
        top: var(--bf-header-h-mobile) !important;
    }
}

/* --------------------------------------------------------------------------
   1. NAVBAR
   -------------------------------------------------------------------------- */

.bf-navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    height: var(--bf-header-h);
    padding: 0 var(--page-padding);
    background: var(--color-white);
    border-bottom: 0.5px solid var(--color-border);
}

.bf-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.bf-logo-mark {
    display: block;
    height: 28px;
    width: auto;
}

.bf-logo-text {
    font-family: var(--font-display);
    font-weight: var(--weight-bold);
    font-size: 19px;
    letter-spacing: -0.02em;
    color: var(--color-black);
}

@media (max-width: 860px) {
    .bf-logo-mark {
        height: 24px;
    }
    .bf-logo-text {
        font-size: 17px;
    }
}

/* --------------------------------------------------------------------------
   2. NAV ITEMS
   -------------------------------------------------------------------------- */

.bf-nav-items {
    display: flex;
    align-items: center;
    gap: 6px;
}

.bf-nav-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: var(--weight-medium);
    color: var(--color-text-muted);
    text-decoration: none;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.bf-nav-item:hover,
.bf-nav-item.is-open {
    color: var(--color-black);
    background: var(--color-background-soft);
}

.bf-chev {
    width: 8px;
    height: 8px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
    margin-top: -2px;
}

.bf-nav-item.is-open .bf-chev {
    transform: rotate(-135deg);
    margin-top: 2px;
}

/* --------------------------------------------------------------------------
   3. CTA + HAMBURGER
   -------------------------------------------------------------------------- */

.bf-nav-cta {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    background: var(--color-blue);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: var(--weight-medium);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 999px;
    white-space: nowrap;
    transition: opacity 0.2s ease;
}

.bf-nav-cta:hover {
    opacity: 0.88;
}

.bf-hamburger {
    display: none;
    position: relative;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.bf-hamburger span {
    position: absolute;
    left: 6px;
    right: 6px;
    height: 1.5px;
    background: var(--color-black);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.bf-hamburger span:nth-child(1) { top: 11px; }
.bf-hamburger span:nth-child(2) { top: 16px; }
.bf-hamburger span:nth-child(3) { top: 21px; }

.bf-hamburger.is-open span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.bf-hamburger.is-open span:nth-child(2) { opacity: 0; }
.bf-hamburger.is-open span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   4. MEGA MENU (desktop)
   -------------------------------------------------------------------------- */

.bf-mega-wrap {
    position: relative;
    z-index: 999;
}

.bf-mega-panel {
    position: fixed;
    top: var(--bf-header-h);
    left: 50%;
    transform: translate(-50%, -8px);
    width: min(920px, 92vw);
    background: var(--color-white);
    border: 0.5px solid var(--color-border);
    border-radius: 14px;
    box-shadow: 0 24px 48px -20px rgba(10, 10, 10, 0.18);
    margin-top: 10px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
}

.bf-mega-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.bf-mega-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
}

.bf-zone {
    padding: var(--space-5);
}

.bf-zone + .bf-zone {
    border-left: 0.5px solid var(--color-border);
}

.bf-eyebrow {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: var(--weight-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin: 0 0 var(--space-4);
}

/* --- Zona 1: por objetivo --- */
.bf-obj-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bf-obj-item {
    display: flex;
    flex-direction: column;
    padding: 10px;
    border-radius: 9px;
    text-decoration: none;
}

.bf-obj-item:hover {
    background: var(--color-background-soft);
}

.bf-obj-name {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: var(--weight-bold);
    color: var(--color-black);
}

.bf-obj-desc {
    font-family: var(--font-body);
    font-size: 12.5px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* --- Zona 2: especialidades --- */
.bf-exp-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.bf-exp-item {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: none;
    padding: 7px 8px;
    border-radius: 7px;
    display: block;
}

.bf-exp-item:hover {
    background: var(--color-background-soft);
    color: var(--color-black);
}

/* --- Zona 3: tarjeta de packs --- */
.bf-zone-packs {
    padding-left: 14px;
}

.bf-packs-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--space-5);
    border-radius: 11px;
    border: 0.5px solid var(--color-border);
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(120% 140% at 0% 0%, rgba(40, 114, 250, 0.10), transparent 55%),
        radial-gradient(120% 140% at 100% 100%, rgba(40, 114, 250, 0.14), transparent 55%),
        var(--bf-panel-soft);
}

.bf-packs-eyebrow {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: var(--weight-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-blue);
    margin: 0 0 10px;
}

.bf-packs-title {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: var(--weight-bold);
    color: var(--color-black);
    margin: 0 0 8px;
}

.bf-packs-copy {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0 0 18px;
    flex-grow: 1;
}

.bf-packs-link {
    font-family: var(--font-body);
    font-size: 13.5px;
    font-weight: var(--weight-semibold);
    color: var(--color-black);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.bf-arrow {
    transition: transform 0.18s ease;
}

.bf-packs-card:hover .bf-arrow {
    transform: translateX(3px);
}

/* --- Barra inferior del mega menú --- */
.bf-mega-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--bf-panel-soft);
    border-top: 0.5px solid var(--color-border);
    border-radius: 0 0 14px 14px;
}

.bf-mega-footer p {
    margin: 0;
    font-family: var(--font-body);
    font-size: 13.5px;
    color: var(--color-text-muted);
}

.bf-mega-footer strong {
    color: var(--color-black);
    font-weight: var(--weight-semibold);
}

.bf-footer-cta {
    flex-shrink: 0;
    background: var(--color-black);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 13.5px;
    font-weight: var(--weight-semibold);
    text-decoration: none;
    padding: 9px 16px;
    border-radius: 999px;
    white-space: nowrap;
    transition: background 0.2s ease;
}

.bf-footer-cta:hover {
    background: var(--color-blue);
}

/* --------------------------------------------------------------------------
   5. BACKDROP
   -------------------------------------------------------------------------- */

.bf-backdrop {
    position: fixed;
    inset: 0;
    z-index: 998;
    background: rgba(10, 10, 10, 0.05);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.bf-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
}

/* --------------------------------------------------------------------------
   6. PANEL MÓVIL
   -------------------------------------------------------------------------- */

.bf-mobile-panel {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--bf-header-h-mobile);
    z-index: 997;
    background: var(--color-white);
    overflow-y: auto;
    padding: 8px var(--page-padding) 32px;
    transform: translateX(100%);
    transition: transform 0.28s ease;
}

.bf-mobile-panel.is-open {
    display: block;
    transform: translateX(0);
}

.bf-m-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 4px;
    border-bottom: 0.5px solid var(--color-border);
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: var(--weight-bold);
    color: var(--color-black);
    text-decoration: none;
    cursor: pointer;
}

.bf-m-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.bf-m-accordion-body.is-open {
    max-height: 1400px;
}

.bf-m-section-label {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: var(--weight-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin: 18px 4px 8px;
}

.bf-m-obj {
    padding: 12px 4px;
    display: flex;
    flex-direction: column;
    border-bottom: 0.5px solid var(--color-border);
    text-decoration: none;
}

.bf-m-obj-name {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: var(--weight-bold);
    color: var(--color-black);
}

.bf-m-obj-desc {
    font-family: var(--font-body);
    font-size: 12.5px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.bf-m-exp-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0 14px;
    padding-bottom: 6px;
    border-bottom: 0.5px solid var(--color-border);
}

.bf-m-exp {
    display: inline-flex;
    padding: 9px 4px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: none;
}

.bf-m-packs {
    margin: 18px 4px;
}

.bf-m-footer-cta {
    margin: 24px 4px 0;
}

/* --------------------------------------------------------------------------
   7. RESPONSIVE
   -------------------------------------------------------------------------- */

@media (max-width: 860px) {
    .bf-navbar {
        height: var(--bf-header-h-mobile);
        padding: 0 20px;
    }
    .bf-nav-items,
    .bf-nav-cta,
    .bf-mega-wrap {
        display: none;
    }
    .bf-hamburger {
        display: block;
    }
}

@media (min-width: 861px) {
    .bf-mobile-panel,
    .bf-hamburger {
        display: none;
    }
}