/**
 * AuctLect Platform - Navbar Styles (Pattern C)
 *
 * 全ページ共通の Navbar CSS。
 * 各HTMLの <head> で style-new.css の後に読み込む:
 *   <link href="[PATH]css/navbar.css" rel="stylesheet">
 */

/* ========== Mobile Language Selector ========== */
.navbar-lang-selector {
    display: flex;
    align-items: center;
    margin-right: 0.5rem;
}

@media (max-width: 991.98px) {
    .navbar-lang-selector {
        order: 1;
    }
    .navbar-toggler {
        order: 2;
    }
}

/* ========== PC Navbar - 横並び維持 ========== */
@media (min-width: 992px) {
    .navbar-nav {
        flex-wrap: nowrap !important;
        flex-direction: row !important;
    }
    .navbar-nav .nav-item {
        white-space: nowrap !important;
    }
    .navbar-nav .nav-link {
        white-space: nowrap !important;
        padding: 0.5rem 0.6rem !important;
        font-size: 0.9rem;
    }
    .navbar-collapse .d-flex {
        flex-wrap: nowrap !important;
    }
    .dropdown-menu {
        white-space: nowrap;
    }
    .navbar-buttons-guest {
        display: flex !important;
        flex-wrap: nowrap !important;
        gap: 0.5rem;
    }
    .navbar-buttons-guest .btn {
        white-space: nowrap !important;
        flex-shrink: 0;
    }
}

/* ========== Auth Visibility Control ========== */
.auth-only {
    display: none !important;
}
.guest-only {
    display: block;
}
body.logged-in .auth-only {
    display: block !important;
}
body.logged-in .auth-only.nav-item {
    display: list-item !important;
}
body.logged-in .auth-only.dropdown {
    display: block !important;
}
body.logged-in .guest-only {
    display: none !important;
}
@media (min-width: 992px) {
    body.logged-in .navbar-buttons-guest {
        display: none !important;
    }
}

/* ========== User Dropdown Menu ========== */
.user-dropdown {
    position: relative;
}
.user-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 25px;
    padding: 0.4rem 0.75rem;
    cursor: pointer;
    color: var(--color-text);
    transition: all 0.2s;
}
.user-dropdown-toggle:hover {
    border-color: var(--color-accent);
    background: rgba(139, 115, 85, 0.05);
}
.user-dropdown-toggle i:first-child {
    font-size: 1.25rem;
    color: var(--color-accent);
}
.user-name {
    font-weight: 500;
    font-size: 0.9rem;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-chevron {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    transition: transform 0.2s;
}
.user-dropdown.open .user-chevron {
    transform: rotate(180deg);
}
.user-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    min-width: 240px;
    z-index: 1001;
    display: none;
    overflow: hidden;
}
.user-menu.show {
    display: block;
}
.user-menu-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--color-bg-main);
}
.user-avatar {
    font-size: 2.5rem;
    color: var(--color-accent);
}
.user-info {
    flex: 1;
    min-width: 0;
}
.user-display-name {
    font-weight: 600;
    font-size: 0.95rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-email {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-menu-divider {
    height: 1px;
    background: var(--color-border);
}
.user-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
}
.user-menu-item:hover {
    background: var(--color-bg-hover);
    color: var(--color-accent);
}
.user-menu-item i {
    width: 20px;
    text-align: center;
    color: var(--color-text-secondary);
}
.user-menu-item:hover i {
    color: var(--color-accent);
}
.logout-btn {
    color: var(--color-error);
}
.logout-btn i {
    color: var(--color-error);
}
.logout-btn:hover {
    background: rgba(199, 93, 93, 0.1);
    color: var(--color-error);
}

/* ========== Message Unread Badge ========== */
.msg-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-error, #C75D5D);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    padding: 0 5px;
    margin-left: 6px;
    line-height: 1;
    vertical-align: middle;
}

/* ========== Navbar Overlay ========== */
.navbar-overlay {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
}
.navbar-overlay.show {
    display: block;
}

/* ========== Mobile Adjustments ========== */
@media (max-width: 991.98px) {
    .user-dropdown {
        order: 3;
        margin-left: 0.5rem;
    }
    .user-dropdown-toggle {
        padding: 0.3rem;
        border-radius: 50%;
        width: 38px;
        height: 38px;
        justify-content: center;
    }
    .user-menu {
        position: fixed;
        top: 56px;
        right: 10px;
        left: auto;
        min-width: 260px;
        max-width: calc(100vw - 20px);
        z-index: 9999;
    }
    .navbar-collapse {
        max-height: 70vh;
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
    }
    .navbar-collapse.show,
    .navbar-collapse.collapsing {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        z-index: 1045;
        padding: 0.5rem 1rem;
    }

    .navbar-custom {
        z-index: 1050 !important;
        background: #FFFFFF !important;
    }

    /* Vertical layout for collapse submenus (Tools etc.) */
    .navbar-collapse .collapse:not(.show) {
        display: none;
    }
    .navbar-collapse .collapse.show {
        display: flex;
        flex-direction: column;
    }
    .navbar-collapse .collapse .nav-link {
        padding: 0.5rem 1rem !important;
        border-radius: 0.5rem;
    }
}
