/* ==========================================================
   MEMAK KURUMSAL İNTRANET VE İŞ SÜREÇLERİ PORTALI
   Modern Enterprise Design System & Mobile-First App Shell
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Memak Kurumsal Renk Paleti */
    --primary: #007bc2;
    --primary-hover: #0066a3;
    --primary-light: #e0f2fe;
    --primary-dark: #004d7a;
    --primary-gradient: linear-gradient(135deg, #007bc2 0%, #0284c7 100%);
    
    /* İkincil & Vurgu Renkleri */
    --accent: #0284c7;
    --dark: #0f172a;
    --dark-surface: #1e293b;
    --dark-muted: #334155;
    
    /* Durum Renkleri */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Nötr & Arka Planlar */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-surface: #f1f5f9;
    --border-color: #e2e8f0;
    --border-focus: #93c5fd;

    /* Metin Renkleri */
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;

    /* Gölgeler & Cam Efekti */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.05);
    --shadow-glow: 0 0 20px rgba(0, 123, 194, 0.25);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.6);

    /* Boyutlar & Geçişler */
    --sidebar-width: 280px;
    --header-height: 70px;
    --bottom-nav-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sıfırlama ve Temel */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================
   APP SHELL LAYOUT (Desktop & Mobile)
   ========================================================== */

.app-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100%;
    position: relative;
}

/* Sol Sidebar (Masaüstü) */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--dark-surface);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    box-shadow: 4px 0 20px rgba(0,0,0,0.06);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.sidebar-brand-text {
    display: flex;
    flex-direction: column;
}

.sidebar-brand-name {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-white);
    letter-spacing: -0.3px;
}

.sidebar-brand-tag {
    font-size: 0.72rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 500;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar-group-title {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #64748b;
    padding: 14px 12px 6px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: #94a3b8;
    border-radius: var(--radius-sm);
    font-weight: 500;
    margin-bottom: 4px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-white);
    background-color: rgba(255, 255, 255, 0.06);
    transform: translateX(3px);
}

.nav-link.active {
    color: var(--text-white);
    background: var(--primary-gradient);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 123, 194, 0.35);
}

.nav-link i {
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
}

.nav-badge {
    margin-left: auto;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.nav-badge.bg-danger {
    background-color: var(--danger);
    color: white;
}

.nav-badge.bg-primary {
    background-color: var(--primary);
    color: white;
}

.sidebar-user {
    padding: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: rgba(0,0,0,0.15);
}

.user-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-info {
    flex: 1;
    overflow: hidden;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: #94a3b8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Ana İçerik Alanı */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Üst Header */
.app-header {
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 18px;
}

.header-toggle-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text-main);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
}

.header-search {
    position: relative;
    width: 340px;
}

.header-search input {
    width: 100%;
    padding: 10px 16px 10px 42px;
    background-color: var(--bg-surface);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--text-main);
    outline: none;
    transition: var(--transition);
}

.header-search input:focus {
    background-color: var(--bg-card);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 123, 194, 0.12);
}

.header-search i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-btn {
    position: relative;
    background: var(--bg-surface);
    border: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.15rem;
    cursor: pointer;
    transition: var(--transition);
}

.header-btn:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

.header-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background-color: var(--danger);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--bg-card);
}

/* Sayfa Gövdesi */
.app-content {
    flex: 1;
    padding: 28px;
}

/* ==========================================================
   KARTLAR, BİLEŞENLER VE TİPOGRAFİ
   ========================================================== */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 4px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    margin-bottom: 24px;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* İstatistik Kartları Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 123, 194, 0.2);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    flex-shrink: 0;
}

.stat-icon.primary { background: var(--primary-light); color: var(--primary); }
.stat-icon.success { background: var(--success-light); color: var(--success); }
.stat-icon.warning { background: var(--warning-light); color: var(--warning); }
.stat-icon.danger { background: var(--danger-light); color: var(--danger); }

.stat-val {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 4px;
}

/* Butonlar */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.92rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 10px rgba(0, 123, 194, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0066a3 0%, #0284c7 100%);
    box-shadow: 0 6px 16px rgba(0, 123, 194, 0.45);
    transform: translateY(-1px);
    color: white;
}

.btn-secondary {
    background-color: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.btn-success { background-color: var(--success); color: white; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-sm { padding: 6px 12px; font-size: 0.82rem; }

/* Rozetler (Badges) */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-secondary { background: var(--bg-surface); color: var(--text-muted); }

/* Tablo */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    background-color: var(--bg-surface);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.9rem;
    vertical-align: middle;
}

.table tbody tr:hover td {
    background-color: rgba(0, 123, 194, 0.02);
}

/* ==========================================================
   LAUNCHPAD & HIZLI KISAYOLLAR
   ========================================================== */

.launchpad-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
}

.launchpad-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
    transition: var(--transition);
    color: var(--text-main);
}

.launchpad-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
    color: var(--primary);
}

.launchpad-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    transition: var(--transition);
}

.launchpad-item:hover .launchpad-icon {
    background: var(--primary-gradient);
    color: white;
}

.launchpad-label {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ==========================================================
   MOBİL BOTTOM NAVIGATION BAR
   ========================================================== */

.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-color);
    z-index: 999;
    box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
    justify-content: space-around;
    align-items: center;
    padding: 0 8px;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    height: 100%;
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 500;
    gap: 4px;
    transition: var(--transition);
    position: relative;
}

.mobile-nav-item i {
    font-size: 1.25rem;
}

.mobile-nav-item.active {
    color: var(--primary);
    font-weight: 700;
}

.mobile-nav-item.active i {
    transform: translateY(-2px);
}

.mobile-drawer-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 95;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* ==========================================================
   RESPONSIVE (MOBİL & TABLET UYUMU)
   ========================================================== */

@media (max-width: 992px) {
    .app-sidebar {
        transform: translateX(-100%);
    }

    .app-sidebar.show {
        transform: translateX(0);
    }

    .mobile-drawer-overlay.show {
        display: block;
        opacity: 1;
    }

    .app-main {
        margin-left: 0;
        padding-bottom: var(--bottom-nav-height);
    }

    .header-toggle-btn {
        display: block;
    }

    .header-search {
        width: 200px;
    }

    .mobile-bottom-nav {
        display: flex;
    }

    .app-content {
        padding: 18px 14px;
    }

    .page-title {
        font-size: 1.3rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 14px;
    }

    .stat-val {
        font-size: 1.35rem;
    }
}

@media (max-width: 576px) {
    .header-search {
        display: none;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .app-header {
        padding: 0 16px;
    }
}