/* ================================
   Blink (8550) | 導航系統樣式
   Mobile-First: 基礎 = 手機
   ================================ */

/* ==================== 手機版 App Header ==================== */
.mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
    padding-top: env(safe-area-inset-top);
    background: linear-gradient(135deg, var(--brand-primary, #D4A574) 0%, var(--brand-secondary, #C7A17A) 100%);
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.mobile-header__brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    color: white;
}

.mobile-header__logo {
    height: 28px;
    width: auto;
}

.mobile-header__brand-icon {
    font-size: 20px;
}

.mobile-header__brand-name {
    font-size: var(--font-lg, 1.125rem);
    font-weight: 700;
    color: white;
}

.mobile-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.mobile-header__action-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border-radius: var(--radius-lg, 0.5rem);
    text-decoration: none;
    background: transparent;
    border: none;
    transition: background-color 0.15s ease;
}

.mobile-header__action-btn:active {
    background-color: rgba(255, 255, 255, 0.2);
}

/* ==================== 頂部導航 ==================== */
/* 手機：隱藏頂部導航 */
.top-nav {
    display: none;
}

/* ==================== 底部 Tab Bar ==================== */
.bottom-tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    display: flex;
    align-items: stretch;
    background: var(--color-bg-card, white);
    border-top: 1px solid var(--color-border, #e1e4e8);
    padding-bottom: env(safe-area-inset-bottom);
    z-index: 100;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
}

.tab-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    text-decoration: none;
    color: var(--color-text-secondary, #9ca3af);
    font-size: var(--font-xs, 0.75rem);
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.15s ease;
    min-height: 44px;
    padding: var(--space-1) 0;
}

.tab-item:active {
    background-color: rgba(0, 0, 0, 0.05);
}

.tab-item--active {
    color: var(--brand-primary, #D4A574);
}

.tab-item__icon {
    font-size: 20px;
    line-height: 1;
}

.tab-item__label {
    font-size: 10px;
    font-weight: 500;
}

/* 主要內容區域 - 為 App Header + 底部 Tab Bar 留空間 */
.page-content {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    padding: var(--space-4, 1rem);
    padding-top: calc(52px + env(safe-area-inset-top, 0px) + var(--space-4, 1rem));
    padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px));
    min-height: calc(100vh - 56px);
}

/* ==================== 「更多」全螢幕選單 ==================== */
.more-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-page, white);
    z-index: 200;
    transform: translateY(100%);
    transition: transform 0.3s ease-in-out, visibility 0.3s;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    visibility: hidden;
    pointer-events: none;
}

.more-menu--active {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

.more-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background: var(--color-bg-page, white);
    z-index: 1;
}

.more-menu__title {
    font-size: var(--font-xl, 1.25rem);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
}

.more-menu__close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-xl);
}

.more-menu__body {
    padding: var(--space-4);
    padding-bottom: calc(var(--space-8) + env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.more-menu__group-title {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
    padding-left: var(--space-2);
}

.more-menu__item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-default);
    text-decoration: none;
    font-weight: 500;
    min-height: 52px;
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-muted);
    margin-bottom: var(--space-2);
}

.more-menu__item:active {
    background-color: var(--color-bg-subtle);
    transform: scale(0.98);
}

.more-menu__item-icon {
    font-size: 20px;
    width: 24px;
    display: flex;
    justify-content: center;
}

.more-menu__item-text {
    font-size: var(--text-base);
}

/* ==================== 平板以上 (>= 768px) ==================== */
@media (min-width: 768px) {
    .mobile-header {
        display: none;
    }

    .top-nav {
        display: block;
        background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .top-nav__container {
        max-width: 1400px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        padding: 0 var(--space-6, 1.5rem);
        min-height: 60px;
        gap: var(--space-6, 1.5rem);
    }

    .top-nav__brand-link {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        color: white;
        text-decoration: none;
        font-weight: 700;
        font-size: var(--font-lg, 1.125rem);
    }

    .top-nav__logo {
        height: 32px;
        width: auto;
    }

    .top-nav__menu {
        flex: 1;
        display: flex;
        gap: var(--space-2);
        overflow-x: auto;
    }

    .top-nav__item {
        color: rgba(255, 255, 255, 0.85);
        text-decoration: none;
        padding: var(--space-2) var(--space-3);
        border-radius: var(--radius-lg);
        font-size: var(--font-sm);
        transition: all 0.2s ease;
    }

    .top-nav__item:hover {
        background: rgba(255, 255, 255, 0.15);
        color: white;
    }

    .top-nav__actions {
        display: flex;
        align-items: center;
        gap: var(--space-3);
    }

    .top-nav__action-btn {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: white;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all 0.2s;
    }

    .top-nav__action-btn:hover {
        background: rgba(255, 255, 255, 0.2);
    }

    .top-nav__btn-login,
    .top-nav__btn-logout {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: white;
        padding: var(--space-2) var(--space-4);
        border-radius: var(--radius-lg);
        text-decoration: none;
    }

    .bottom-tab-bar {
        display: none;
    }

    .page-content {
        padding: var(--space-8);
        padding-bottom: var(--space-8);
        max-width: 1024px;
        margin: 0 auto;
    }

    .more-menu {
        left: auto;
        width: 400px;
        transform: translateX(100%);
        visibility: hidden;
        pointer-events: none;
        border-left: 1px solid var(--color-border);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    }

    .more-menu--active {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
    }
}

@media (min-width: 1200px) {
    .page-content {
        max-width: 1200px;
    }
}