/**
 * ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 * ⚡ NanoBanana Renewal v2.1 — Sidebar + App Layout + Mobile Tabbar
 * ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 * 📁 파일명: /new/_acc/css/sidebar.css
 * 📌 버전: v1.2
 * 📅 작성일: 2026-02-22
 * 📝 설명: ★ [v1.2] frontend-preview.html에서 분리
 * ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 */

/* ===== App Layout ===== */
.app-layout { display: flex; min-height: calc(100vh - 50px); }
.main-content { flex: 1; min-width: 0; padding: 0; overflow-x: hidden; }
.main-content-padded { padding: 20px; }

/* ===== Sidebar (운영 색상 적용 — 바나나 라인) ===== */
.sidebar {
    position: sticky; top: 50px; height: calc(100vh - 50px);
    width: 240px; min-width: 240px; background: var(--bg);
    border-right: 1px solid var(--banana-border); overflow-y: auto; overflow-x: hidden;
    transition: width 0.25s ease, min-width 0.25s ease; z-index: 90;
    display: flex; flex-direction: column;
}
.sidebar.collapsed { width: 60px; min-width: 60px; }
.sidebar-inner { display: flex; flex-direction: column; height: 100%; padding: 12px 0; }
.sidebar-toggle {
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; margin: 0 14px 8px auto;
    background: transparent; border: 1px solid var(--banana-border);
    border-radius: 6px; color: var(--text-secondary); cursor: pointer;
}
.sidebar-toggle:hover { background: var(--banana-light); color: var(--accent); border-color: var(--accent); }
.sidebar.collapsed .sidebar-toggle { margin: 0 auto 8px; }
.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: 2px; padding: 0 8px; }
.sidebar-section-title {
    padding: 16px 12px 4px; font-size: 11px; font-weight: 600;
    letter-spacing: 0.05em; color: var(--text-secondary); text-transform: uppercase;
    white-space: nowrap; overflow: hidden;
}
.sidebar.collapsed .sidebar-section-title { visibility: hidden; height: 12px; padding: 8px 0 0; }
.sidebar-item {
    display: flex; align-items: center; gap: 12px; padding: 10px 12px;
    border-radius: 8px; color: var(--banana-text); text-decoration: none;
    font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden;
    transition: background 0.15s, color 0.15s; cursor: pointer;
}
.sidebar-item:hover { background: var(--banana-medium); color: var(--accent); }
.sidebar-item.active { background: var(--banana-medium); color: var(--accent); font-weight: 600; border-left: 3px solid var(--accent); }
.sidebar-item.disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.sidebar-icon { display: flex; align-items: center; justify-content: center; width: 20px; min-width: 20px; font-size: 16px; }
.sidebar-label { overflow: hidden; text-overflow: ellipsis; transition: opacity 0.2s; }
.sidebar.collapsed .sidebar-label { opacity: 0; width: 0; overflow: hidden; }
.sidebar-badge { margin-left: auto; padding: 2px 6px; border-radius: 4px; font-size: 10px; font-weight: 700; letter-spacing: 0.03em; white-space: nowrap; }
.badge-new { background: var(--accent); color: white; }
.badge-pro { background: linear-gradient(135deg, #f59e0b 0%, #FF6B35 100%); color: white; }
.badge-soon { background: var(--banana-medium); color: var(--text-secondary); }
.sidebar.collapsed .sidebar-badge { display: none; }
.sidebar-credits-display { border-top: 1px solid var(--banana-border); margin-top: 4px; padding-top: 8px; }
.sidebar-footer { padding: 12px 20px; font-size: 11px; color: var(--text-secondary); text-align: center; border-top: 1px solid var(--banana-border); white-space: nowrap; overflow: hidden; }
.sidebar-footer a { color: var(--text-secondary); text-decoration: none; }
.sidebar-footer a:hover { color: var(--accent); }
.sidebar-footer-dot { margin: 0 4px; }
.sidebar.collapsed .sidebar-footer { visibility: hidden; }
.sidebar.collapsed .sidebar-item { justify-content: center; padding: 10px 0; }
.sidebar.collapsed .sidebar-item .sidebar-icon { width: 100%; justify-content: center; }
[data-theme="dark"] .sidebar { background: var(--surface); }

/* ===== Mobile (바나나 라인 적용) ===== */
.mobile-tabbar { display: none; }
@media (max-width: 768px) {
    .sidebar { display: none; }
    .mobile-tabbar {
        position: fixed; bottom: 0; left: 0; right: 0; height: 56px;
        background: var(--bg); border-top: 1px solid var(--banana-border);
        display: flex; align-items: center; justify-content: space-around; z-index: 100;
        box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.05);
    }
    .tab-item { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 0; flex: 1; background: transparent; border: none; color: var(--text-secondary); font-size: 10px; cursor: pointer; text-decoration: none; }
    .tab-item i { font-size: 18px; }
    .tab-item.active { color: var(--accent); }
    .main-content { padding-bottom: 72px; }
    .studio-layout { grid-template-columns: 1fr; }
    /* 운영 generate_tab.css v3.3 모바일 반응형 동일 */
    .generate-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; width: 100%; box-sizing: border-box; }
    .generate-options, .generate-right, .result-area { width: 100% !important; max-width: 100% !important; min-width: 0; box-sizing: border-box; }
    .result-area { min-height: 250px; max-height: 50vh; width: 100%; }
    .model-select, .model-btn-group { flex-direction: column; gap: 8px; }
    .btn-group { flex-wrap: wrap; }
    .opt-btn { min-width: calc(33.33% - 6px); }
    .reference-images, .ref-slots { flex-wrap: wrap; }
    .ref-slot { width: 50px; height: 50px; }
    .result-actions, .result-actions-container { display: flex; flex-wrap: wrap !important; width: 100% !important; box-sizing: border-box; gap: 8px; justify-content: center; }
    .result-action-btn { flex: 1 1 45%; min-width: 120px; white-space: nowrap; box-sizing: border-box; }
    .top-nav { padding: 0 12px; height: 48px; }
    body { padding-top: 48px; }
    .sticky-header-wrapper { top: 48px; }
    .sidebar { top: 48px; height: calc(100vh - 48px); }
    .nav-menu-link span { display: none; }
    .nav-login-btn span { display: none; }
    .nav-credit-badge { padding: 4px 8px; font-size: 0.8rem; }
    .hero-stats { gap: 10px; flex-wrap: wrap; }
    .hero-stat-item { padding: 6px 12px; font-size: 0.9rem; }
    .filter-bar { padding: 10px 12px; gap: 8px; }
    .tier-filter-group { margin-right: 8px; padding-right: 8px; gap: 4px; }
    .tier-filter-btn { height: 32px; padding: 0 10px; font-size: 12px; }
    .search-result-row { gap: 4px; }
    .search-form { height: 32px; padding: 0 3px 0 10px; }
    .search-input { width: 100px; font-size: 0.8rem; height: 30px; line-height: 30px; }
    .search-btn { width: 26px; height: 26px; }
    .filter-icon-btn { width: 32px; height: 32px; }
    .filter-icon-btn i { font-size: 0.85rem; }
    [data-theme="dark"] .mobile-tabbar { background: var(--surface); }

    /* ===== [v1.3] Mobile Bottom Sheet (More 메뉴) ===== */
    .sidebar.mobile-open {
        display: flex;
        position: fixed;
        top: auto;
        bottom: 56px; /* tabbar 위 */
        left: 0;
        right: 0;
        width: 100%;
        min-width: 100%;
        height: auto;
        max-height: 55vh;
        border-right: none;
        border-top: 1px solid var(--banana-border);
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
        z-index: 99;
        overflow-y: auto;
        animation: slideUpSheet 0.25s ease;
    }
    .sidebar.mobile-open .sidebar-inner {
        padding: 8px 0 12px;
    }
    .sidebar.mobile-open .sidebar-toggle { display: none; }
    .sidebar.mobile-open .sidebar-footer { display: none; }
    .sidebar.mobile-open .sidebar-credits-display { display: none; }
    .sidebar.mobile-open .sidebar-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
        padding: 0 12px;
    }
    .sidebar.mobile-open .sidebar-section-title { display: none; }
    /* ★ 탭바에 이미 있는 항목 숨기기 */
    .sidebar.mobile-open .sidebar-item[data-view="home"],
    .sidebar.mobile-open .sidebar-item[data-view="explore"],
    .sidebar.mobile-open .sidebar-item[data-view="studio"],
    .sidebar.mobile-open .sidebar-item[data-view="dashboard"] { display: none; }
    .sidebar.mobile-open .sidebar-item {
        flex-direction: column;
        align-items: center;
        gap: 4px;
        padding: 12px 4px;
        border-radius: 10px;
        font-size: 11px;
        text-align: center;
        border-left: none !important;
    }
    .sidebar.mobile-open .sidebar-item .sidebar-icon {
        width: auto;
        min-width: auto;
        font-size: 20px;
    }
    .sidebar.mobile-open .sidebar-label {
        opacity: 1;
        width: auto;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        max-width: 100%;
    }
    .sidebar.mobile-open .sidebar-badge {
        display: inline-block;
        position: absolute;
        top: 4px;
        right: 4px;
        font-size: 8px;
        padding: 1px 4px;
    }
    .sidebar.mobile-open .sidebar-item { position: relative; }

    /* 바텀 시트 오버레이 */
    .mobile-sheet-overlay {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 56px;
        background: rgba(0, 0, 0, 0.4);
        z-index: 98;
        animation: fadeInOverlay 0.2s ease;
    }
    [data-theme="dark"] .sidebar.mobile-open {
        background: var(--surface);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
    }
    [data-theme="dark"] .mobile-sheet-overlay {
        background: rgba(0, 0, 0, 0.6);
    }

    /* More 탭 활성 상태 */
    .tab-more.sheet-open { color: var(--accent); }
}

/* 바텀 시트 애니메이션 */
@keyframes slideUpSheet {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
@keyframes fadeInOverlay {
    from { opacity: 0; }
    to { opacity: 1; }
}