/**
 * Last Update: 2026-05-27
 * File: assets/frontend/css/nav-dropdown.css
 * Description: Main navigation + dropdown menu styles
 *              Supports: single link, dropdown with sub-items
 *              Mobile: full-width top sheet — fade + slide top→down +
 *                      bloom from top-centre (no left/right slide)
 */

/* ── Desktop nav ────────────────────────────────────────────────────────── */
.fe-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.fe-nav__list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.fe-nav__item {
    position: relative;
}

/* Nav link / toggle button */
.fe-nav__link,
.fe-nav__link--toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--fe-nav-link);
    border-radius: var(--fe-radius-sm);
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--fe-transition), background-color var(--fe-transition);
    position: relative;
}

/* Gold underline on hover */
.fe-nav__link::after,
.fe-nav__link--toggle::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 14px;
    right: 14px;
    height: 2px;
    background-color: var(--fe-nav-underline);
    border-radius: 1px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--fe-transition-med);
}

.fe-nav__link:hover,
.fe-nav__link--toggle:hover {
    color: var(--fe-nav-link-hover);
    background-color: var(--fe-bg-alt);
    text-decoration: none;
}

.fe-nav__link:hover::after,
.fe-nav__link--toggle:hover::after,
.fe-nav__item--has-dropdown:hover > .fe-nav__link--toggle::after,
.fe-nav__item.is-open > .fe-nav__link--toggle::after {
    transform: scaleX(1);
}

/* Chevron icon */
.fe-nav__chevron {
    transition: transform var(--fe-transition-med);
    flex-shrink: 0;
    color: var(--fe-warm-400);
}

.fe-nav__item.is-open > .fe-nav__link--toggle .fe-nav__chevron,
.fe-nav__item--has-dropdown:hover > .fe-nav__link--toggle .fe-nav__chevron {
    transform: rotate(180deg);
    color: var(--fe-gold-500);
}

/* ── Dropdown panel ─────────────────────────────────────────────────────── */

/* Invisible bridge: fills gap so mouse travel doesn't trigger mouseleave */
.fe-nav__item--has-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 12px;
    background: transparent;
}

.fe-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    /* left is set by JS measureAndClampAll() — default center via CSS below */
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 480px;
    background-color: var(--fe-dropdown-bg);
    border: 1px solid var(--fe-border-gold);
    border-radius: var(--fe-radius-md);
    box-shadow: var(--fe-dropdown-shadow);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--fe-transition-med),
                visibility var(--fe-transition-med),
                transform var(--fe-transition-med);
    z-index: 300;
}

/* Once JS has measured and set inline left — disable CSS X-centering */
.fe-dropdown[style*="left"] {
    transform: translateY(-8px);
}

/* Show on hover (desktop) */
.fe-nav__item--has-dropdown:hover > .fe-dropdown,
.fe-nav__item.is-open > .fe-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* Dropdown item — divider between items */
.fe-dropdown__item {}

.fe-dropdown__item + .fe-dropdown__item {
    border-top: 1px solid var(--fe-border);
}

.fe-dropdown__link {
    display: block;
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--fe-dropdown-link);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: color var(--fe-transition),
                background-color var(--fe-transition),
                border-color var(--fe-transition),
                padding-left var(--fe-transition);
}

.fe-dropdown__link:hover {
    color: var(--fe-dropdown-link-hover);
    background-color: var(--fe-dropdown-link-hover-bg);
    border-left-color: var(--fe-gold-400);
    padding-left: 24px;
    text-decoration: none;
}

/* ── Lang Dropdown ──────────────────────────────────────────────────────── */
.fe-lang-dropdown {
    position: relative;
}

.fe-lang-dropdown__trigger {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px 4px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--fe-topbar-text, #5a3e10);
    background-color: rgba(156, 110, 31, 0.18);
    border: 1px solid rgba(156, 110, 31, 0.4);
    border-radius: var(--fe-radius-sm, 6px);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color var(--fe-transition, 0.15s ease),
                border-color var(--fe-transition, 0.15s ease);
    line-height: 1;
    height: 28px;
}

.fe-lang-dropdown__trigger:hover,
.fe-lang-dropdown.is-open .fe-lang-dropdown__trigger {
    background-color: rgba(156, 110, 31, 0.3);
    border-color: rgba(156, 110, 31, 0.6);
}

.fe-lang-dropdown__chevron {
    flex-shrink: 0;
    transition: transform var(--fe-transition-med, 0.22s ease);
    color: rgba(156, 110, 31, 0.8);
}

.fe-lang-dropdown.is-open .fe-lang-dropdown__chevron {
    transform: rotate(180deg);
}

.fe-lang-dropdown__menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 0;
    width: max-content;
    background-color: var(--fe-dropdown-bg, #fffdf7);
    border: 1px solid rgba(156, 110, 31, 0.3);
    border-radius: var(--fe-radius-md, 8px);
    box-shadow: 0 6px 24px rgba(90, 62, 16, 0.14), 0 1px 4px rgba(90, 62, 16, 0.08);
    padding: 4px 0;
    z-index: 350;
    list-style: none;
    margin: 0;
    /* Hidden state */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity var(--fe-transition-med, 0.22s ease),
                visibility var(--fe-transition-med, 0.22s ease),
                transform var(--fe-transition-med, 0.22s ease);
}

.fe-lang-dropdown.is-open .fe-lang-dropdown__menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.fe-lang-dropdown__item {
    padding: 0;
}

.fe-lang-dropdown__item + .fe-lang-dropdown__item {
    border-top: 1px solid rgba(156, 110, 31, 0.1);
}

.fe-lang-dropdown__option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 9px 14px;
    font-size: 0.83rem;
    font-weight: 400;
    color: var(--fe-dropdown-link, #5a3e10);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    border-left: 3px solid transparent;
    transition: background-color var(--fe-transition, 0.15s ease),
                border-color var(--fe-transition, 0.15s ease),
                padding-left var(--fe-transition, 0.15s ease),
                color var(--fe-transition, 0.15s ease);
    white-space: nowrap;
    line-height: 1.4;
}

.fe-lang-dropdown__option:hover {
    background-color: rgba(156, 110, 31, 0.1);
    border-left-color: rgba(156, 110, 31, 0.6);
    padding-left: 18px;
    color: #9c6e1f;
}

.fe-lang-dropdown__item.is-active .fe-lang-dropdown__option {
    font-weight: 600;
    color: #9c6e1f;
    background-color: rgba(156, 110, 31, 0.08);
    border-left-color: #9c6e1f;
}

.fe-lang-dropdown__check {
    flex-shrink: 0;
    color: #9c6e1f;
    margin-left: 8px;
}

/* Mobile: lang dropdown stays absolute, just reposition if needed */
@media (max-width: 768px) {
    .fe-lang-dropdown__menu {
        right: 0;
        left: auto;
    }
}

@media (max-width: 768px) {
    /* Mobile menu = full-width sheet dropping from under the header:
       fade in + slide top→down + bloom out from the top-centre.
       No left/right slide. Colours stay on tokens-frontend.css. */
    .fe-nav {
        position: fixed;
        top: calc(var(--fe-topbar-h) + var(--fe-header-h));
        left: 0;
        right: 0;
        width: 100%;
        max-height: calc(100vh - var(--fe-topbar-h) - var(--fe-header-h));
        background-color: var(--fe-bg-header);
        border-top: 1px solid var(--fe-border-gold);
        box-shadow: var(--fe-shadow-lg);
        z-index: 185;
        flex-direction: column;
        justify-content: flex-start;
        padding: 8px 0 24px;
        overflow-y: auto;

        /* Hidden: faded, lifted up, slightly collapsed toward the centre */
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-14px) scale(0.94);
        transform-origin: top center;
        transition: opacity var(--fe-transition-med),
                    transform var(--fe-transition-med),
                    visibility var(--fe-transition-med);
    }

    .fe-nav.is-open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }

    /* ── Clean white rows + subtle gold accents.
       Scoped under #feNav so it wins over the legacy theme (style.css /
       style-override.css load AFTER this file on the home layout). ── */
    #feNav .fe-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }

    #feNav .fe-nav__item {
        width: 100%;
        max-width: none;
        align-self: stretch;
        margin: 0;
        border-bottom: 1px solid var(--fe-border);
    }
    #feNav .fe-nav__item:last-child {
        border-bottom: none;
    }

    #feNav .fe-nav__link,
    #feNav .fe-nav__link--toggle {
        justify-content: space-between;
        width: 100%;
        margin: 0;
        padding: 15px 22px;
        background: var(--fe-bg);          /* pure white — no card */
        background-image: none;
        border: none;
        border-radius: 0;
        box-shadow: none;
        color: var(--fe-nav-link);
        font-size: 0.95rem;
        font-weight: 500;
        box-sizing: border-box;
        transition: background-color var(--fe-transition),
                    color var(--fe-transition),
                    box-shadow var(--fe-transition);
    }

    /* Parent toggle — same white surface, just a touch bolder */
    #feNav .fe-nav__item--has-dropdown > .fe-nav__link--toggle {
        background: var(--fe-bg);
        font-weight: 600;
    }

    /* Accent: faint gold wash + gold text + 3px gold left bar */
    #feNav .fe-nav__link:hover,
    #feNav .fe-nav__link--toggle:hover,
    #feNav .fe-nav__item.is-open > .fe-nav__link--toggle,
    #feNav .fe-nav__item--has-dropdown.is-open > .fe-nav__link--toggle {
        background: var(--fe-bg-alt);
        color: var(--fe-nav-link-hover);
        box-shadow: inset 3px 0 0 var(--fe-primary);
    }

    #feNav .fe-nav__link::after,
    #feNav .fe-nav__link--toggle::after {
        display: none;
    }

    /* Mobile dropdown — stack below parent, faint gold tint to nest */
    #feNav .fe-dropdown {
        position: static;
        left: auto !important;
        right: auto !important;
        transform: none !important;
        box-shadow: none;
        border: none;
        border-radius: 0;
        border-top: 1px solid var(--fe-border);
        background: var(--fe-bg-alt);
        padding: 0;
        min-width: auto;
        width: 100%;
        opacity: 1;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        pointer-events: none;
        transition: max-height 0.28s ease,
                    visibility 0.28s ease;
    }

    /* Override hover-show on mobile — JS class only */
    #feNav .fe-nav__item--has-dropdown:hover > .fe-dropdown {
        opacity: 1;
        visibility: hidden;
        max-height: 0;
        pointer-events: none;
    }

    /* is-open driven by JS */
    #feNav .fe-nav__item.is-open > .fe-dropdown,
    #feNav .fe-nav__item--has-dropdown.is-open > .fe-dropdown {
        visibility: visible;
        max-height: 600px;
        pointer-events: auto;
    }

    #feNav .fe-dropdown__link {
        padding: 12px 22px 12px 38px;       /* indented under its parent */
        font-size: 0.875rem;
        background: transparent;
        border: none;
        border-radius: 0;
        box-shadow: none;
        color: var(--fe-text-muted);
        transition: background-color var(--fe-transition),
                    color var(--fe-transition),
                    box-shadow var(--fe-transition);
    }

    #feNav .fe-dropdown__link:hover {
        background: var(--fe-bg-section);   /* gold-100, a touch deeper */
        color: var(--fe-nav-link-hover);
        box-shadow: inset 3px 0 0 var(--fe-primary);
    }

    /* Mobile overlay show */
    .fe-nav-overlay {
        display: block;
        pointer-events: none;
    }

    .fe-nav-overlay.is-visible {
        pointer-events: auto;
    }
}

/* Mobile menu — honour reduced-motion: fade only, no slide/scale */
@media (max-width: 768px) and (prefers-reduced-motion: reduce) {
    .fe-nav {
        transform: none;
        transition: opacity var(--fe-transition-med),
                    visibility var(--fe-transition-med);
    }
    .fe-nav.is-open {
        transform: none;
    }
}