/*
 * Navigation Styles
 * Sticky top nav, hamburger mobile overlay
 * Version: 1.0.0
 */

/* ------------------------------------------------------------------
   Top Nav Bar
   ------------------------------------------------------------------ */

.bp-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--bp-z-nav);
    height: var(--bp-nav-height);
    background-color: transparent;
    transition:
        background-color var(--bp-transition-base),
        backdrop-filter var(--bp-transition-base),
        border-bottom var(--bp-transition-base);
    border-bottom: 1px solid transparent;
}

/* Scrolled / sticky state — added by JS */
.bp-nav.is-scrolled {
    background-color: rgba(9, 9, 11, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: var(--bp-border);
}

.bp-nav__inner {
    display: flex;
    align-items: center;
    height: 100%;
    gap: var(--bp-space-6);
}

/* Logo */
.bp-nav__logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.bp-nav__logo img {
    height: 44px;
    width: auto;
    display: block;
}

.bp-nav__logo-text {
    font-family: var(--bp-font-display);
    font-size: var(--bp-text-xl);
    font-weight: 700;
    text-transform: uppercase;
    color: var(--bp-text-primary);
    letter-spacing: var(--bp-tracking-tight);
}

/* Desktop menu */
.bp-nav__menu {
    flex: 1;
    display: flex;
    justify-content: center;
}

.bp-nav__list {
    display: flex;
    align-items: center;
    gap: var(--bp-space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.bp-nav__list a {
    display: block;
    padding: var(--bp-space-2) var(--bp-space-3);
    font-family: var(--bp-font-body);
    font-size: var(--bp-text-sm);
    font-weight: 600;
    letter-spacing: var(--bp-tracking-wide);
    text-transform: uppercase;
    color: var(--bp-text-primary);
    border-radius: var(--bp-radius-sm);
    transition: color var(--bp-transition-fast), background-color var(--bp-transition-fast);
    white-space: nowrap;
}

.bp-nav__list a:hover,
.bp-nav__list .current-menu-item > a,
.bp-nav__list .current-page-ancestor > a {
    color: var(--bp-gold);
    background-color: var(--bp-gold-dim);
}

/* CTA in nav */
.bp-nav__cta {
    flex-shrink: 0;
    font-size: var(--bp-text-xs);
}

/* Hamburger button */
.bp-nav__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid var(--bp-border);
    border-radius: var(--bp-radius-sm);
    cursor: pointer;
    padding: var(--bp-space-2);
    transition: border-color var(--bp-transition-fast);
    flex-shrink: 0;
}

.bp-nav__hamburger:hover {
    border-color: var(--bp-gold);
}

.bp-nav__hamburger-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--bp-white);
    border-radius: 2px;
    transition:
        transform var(--bp-transition-base),
        opacity var(--bp-transition-base),
        width var(--bp-transition-base);
    transform-origin: center;
}

/* Hamburger → X animation */
.bp-nav__hamburger[aria-expanded="true"] .bp-nav__hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.bp-nav__hamburger[aria-expanded="true"] .bp-nav__hamburger-bar:nth-child(2) {
    opacity: 0;
    width: 0;
}
.bp-nav__hamburger[aria-expanded="true"] .bp-nav__hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Body offset so content is not under fixed nav */
body {
    padding-top: var(--bp-nav-height);
}

/* ------------------------------------------------------------------
   Mobile Overlay Menu
   ------------------------------------------------------------------ */

.bp-mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--bp-z-modal);
    background-color: rgba(9, 9, 11, 0.97);
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--bp-transition-base);
}

.bp-mobile-menu.is-open {
    opacity: 1;
    pointer-events: all;
}

.bp-mobile-menu__inner {
    width: min(360px, 100vw);
    height: 100%;
    background-color: var(--bp-black-mid);
    border-left: var(--bp-border-1);
    padding: var(--bp-space-6);
    display: flex;
    flex-direction: column;
    gap: var(--bp-space-6);
    transform: translateX(100%);
    transition: transform var(--bp-transition-base) cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.bp-mobile-menu.is-open .bp-mobile-menu__inner {
    transform: translateX(0);
}

.bp-mobile-menu__close {
    align-self: flex-end;
    background: none;
    border: 1px solid var(--bp-border);
    border-radius: var(--bp-radius-sm);
    color: var(--bp-white);
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--bp-text-base);
    transition: border-color var(--bp-transition-fast), color var(--bp-transition-fast);
}

.bp-mobile-menu__close:hover {
    border-color: var(--bp-gold);
    color: var(--bp-gold);
}

.bp-mobile-menu__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--bp-space-1);
}

.bp-mobile-menu__list a {
    display: block;
    padding: var(--bp-space-3) var(--bp-space-4);
    font-family: var(--bp-font-display);
    font-size: var(--bp-text-md);
    font-weight: 700;
    letter-spacing: var(--bp-tracking-wide);
    text-transform: uppercase;
    color: var(--bp-text-primary);
    border-radius: var(--bp-radius-sm);
    border-left: 3px solid transparent;
    transition: color var(--bp-transition-fast), border-color var(--bp-transition-fast), background-color var(--bp-transition-fast);
}

.bp-mobile-menu__list a:hover,
.bp-mobile-menu__list .current-menu-item > a {
    color: var(--bp-gold);
    border-left-color: var(--bp-gold);
    background-color: var(--bp-gold-dim);
}

.bp-mobile-menu__cta {
    margin-top: auto;
    width: 100%;
    text-align: center;
}

/* Overlay backdrop */
.bp-mobile-menu__overlay {
    display: none;
}

/* ------------------------------------------------------------------
   Responsive
   ------------------------------------------------------------------ */

@media (max-width: 1023px) {
    .bp-nav__menu {
        display: none;
    }

    .bp-nav__cta {
        display: none;
    }

    .bp-nav__hamburger {
        display: flex;
        margin-left: auto;
    }
}