/* ============================================================
   VS Overlay Panel - Layout (layout.css)
   Sidebar + content wrapper, site header/footer, responsive
   ============================================================ */

/* --- Panel Layout (Kullanıcı ve Admin için ortak) --- */
.app-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-bg);
}

/* --- Sidebar --- */
.app-sidebar {
    width: 260px;
    background-color: var(--color-sidebar-bg);
    color: #fff;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform var(--transition-normal), width var(--transition-normal);
    z-index: 100;
}

.sidebar-brand {
    padding: var(--space-lg) var(--space-md);
    border-bottom: 1px solid var(--color-sidebar-hover);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sidebar-brand a {
    color: #fff;
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.sidebar-brand a:hover {
    color: #fff;
    text-decoration: none;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-md) 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px var(--space-md);
    color: var(--color-sidebar-text);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}

.sidebar-nav a:hover {
    background-color: var(--color-sidebar-hover);
    color: #fff;
    text-decoration: none;
    border-left-color: var(--color-primary);
}

.sidebar-nav a.active {
    background-color: var(--color-sidebar-hover);
    color: #fff;
    border-left-color: var(--color-primary);
    font-weight: 600;
}

/* Sidebar admin link (sarı vurgulu) */
.sidebar-nav a.admin-link {
    color: #fbbf24;
    font-weight: 600;
}

.sidebar-nav a.admin-link:hover {
    color: #fcd34d;
}

/* Sidebar alt kısım (dil seçici) */
.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--color-sidebar-hover);
    margin-top: auto;
}

.sidebar-footer select {
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-sidebar-hover);
    background-color: var(--color-sidebar-hover);
    color: #fff;
    font-size: var(--font-size-sm);
    cursor: pointer;
    outline: none;
    transition: border-color var(--transition-fast);
}

.sidebar-footer select:focus {
    border-color: var(--color-primary);
}

/* Sidebar dil seçici option */
.sidebar-footer select option {
    background-color: var(--color-sidebar-bg);
    color: #fff;
}

/* --- Ana İçerik Alanı --- */
.app-content {
    flex: 1;
    overflow-x: auto;
    padding: var(--space-xl);
    background-color: var(--color-bg);
    min-height: 100vh;
}

/* --- Site Header (ön yüz) --- */
.site-header {
    background-color: var(--color-sidebar-bg);
    color: #fff;
    padding: 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-md);
    height: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header-brand a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-decoration: none;
}

.header-brand img {
    height: 36px;
    width: auto;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header-nav a {
    color: #e2e8f0;
    text-decoration: none;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    background-color: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-fast);
}

.header-nav a:hover,
.header-nav a:active {
    background-color: rgba(255, 255, 255, 0.28);
    color: #fff;
    text-decoration: none;
    border-color: rgba(255, 255, 255, 0.35);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.header-nav a.nav-admin {
    color: #fbbf24;
    background-color: rgba(251, 191, 36, 0.22);
    border-color: rgba(251, 191, 36, 0.25);
}

.header-nav a.nav-admin:hover,
.header-nav a.nav-admin:active {
    background-color: rgba(251, 191, 36, 0.32);
    color: #fcd34d;
    border-color: rgba(251, 191, 36, 0.5);
}

/* Header dil seçici */
.header-lang select {
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.2);
    background-color: rgba(255,255,255,0.1);
    color: #fff;
    font-size: var(--font-size-sm);
    cursor: pointer;
    outline: none;
}

.header-lang select:focus {
    border-color: var(--color-primary);
}

/* Header dil seçici option */
.header-lang select option {
    background-color: var(--color-sidebar-bg);
    color: #fff;
}

/* --- Footer Kelimeler (footer üstü) --- */
.footer-words {
    background-color: var(--color-surface);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    text-align: center;
    padding: 4px var(--space-md) 0;
    line-height: 1.4;
    word-break: break-word;
}

/* --- OBS Çözünürlük Önerisi --- */
.obs-resolution-tip {
    display: inline-block;
    background-color: #1e293b;
    color: #fff;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    margin-top: 6px;
    font-weight: 500;
}

/* --- Footer Dil Listesi --- */
.footer-lang-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
    margin: 8px 0;
}

.footer-lang-list a {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: #cbd5e1;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-lang-list a:hover {
    background-color: rgba(255, 255, 255, 0.18);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

/* --- Site Footer --- */
.site-footer {
    background-color: var(--color-sidebar-bg);
    color: #cbd5e1;
    text-align: center;
    padding: 12px 0;
    margin-top: 0;
    font-size: var(--font-size-sm);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.footer-inner p {
    margin-bottom: 0;
    line-height: 1.4;
}

.footer-inner p + p {
    margin-top: 4px;
}

/* Sitemap linki */
.footer-inner a {
    color: #94a3b8;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-inner a:hover {
    color: #fff;
}

/* --- Sayfa Başlığı (Page Header) --- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    color: var(--color-text);
}

.page-badge {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* --- Boş Durum (Empty State) --- */
.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.empty-state-icon {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    display: flex;
    justify-content: center;
}

.empty-state-text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-lg);
}

/* --- Responsive --- */
@media screen and (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }

    .app-sidebar {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        padding: var(--space-sm);
        align-items: center;
    }

    .sidebar-brand {
        border-bottom: none;
        padding: var(--space-sm);
    }

    .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
        padding: var(--space-sm);
    }

    .sidebar-nav a {
        border-left: none;
        border-radius: var(--radius-sm);
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .sidebar-footer {
        border-top: none;
        padding: var(--space-sm);
        width: auto;
        margin-top: 0;
    }

    .app-content {
        padding: var(--space-md);
    }

    .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding: var(--space-sm) var(--space-md);
        gap: var(--space-sm);
    }

    .header-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: var(--space-sm);
    }

    .header-nav a {
        padding: 6px 12px;
        font-size: 0.85rem;
    }

    .footer-words {
        font-size: 0.7rem;
        padding: 4px var(--space-sm) 0;
    }

    .obs-resolution-tip {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .footer-lang-list a {
        padding: 3px 7px;
        font-size: 0.7rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}