:root {
    --bg-primary: #0c1222;
    --bg-secondary: #111827;
    --bg-tertiary: #1e293b;
    --border-color: #1f2937;
    --border-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #b0bec5;
    --text-muted: #78909c;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-green: #22c55e;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --sidebar-width: 230px;
}

* { box-sizing: border-box; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0;
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
}

a { color: var(--accent-blue); text-decoration: none; }
a:hover { color: #60a5fa; }

/* ==================== NAVBAR ==================== */
.navbar-taskflow {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    height: 56px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand .logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 14px;
}

/* ==================== SIDEBAR ==================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    height: calc(100vh - 56px);
    position: fixed;
    top: 56px;
    left: 0;
    overflow-y: auto;
    transition: transform 0.25s ease;
    z-index: 900;
}

.sidebar.collapsed { transform: translateX(-100%); }

.sidebar-nav { padding: 12px; }

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 7px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.15s;
    margin-bottom: 2px;
}

.sidebar-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

.sidebar-link.active {
    background: rgba(59, 130, 246, 0.14);
    color: var(--accent-blue);
    font-weight: 600;
}

.sidebar-link i { font-size: 17px; width: 22px; text-align: center; }

/* ==================== MAIN CONTENT ==================== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: calc(100vh - 56px);
    transition: margin-left 0.25s ease;
}

.sidebar.collapsed + .main-content { margin-left: 0; }

/* ==================== STAT CARDS ==================== */
.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: border-color 0.2s;
}

.stat-card:hover { border-color: var(--border-hover); }

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-value {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.2;
}

/* ==================== FORMS ==================== */
.form-control, .form-select {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 7px;
    padding: 9px 12px;
    font-size: 14px;
}

.form-control:focus, .form-select:focus {
    background: var(--bg-primary);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.form-control::placeholder { color: var(--text-muted); }

.btn-primary {
    background: var(--accent-blue);
    border: none;
    border-radius: 7px;
    font-weight: 600;
    font-size: 14px;
    padding: 9px 18px;
}

.btn-primary:hover { background: #2563eb; }

.btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-secondary);
}

/* ==================== NOTIFICATIONS DROPDOWN ==================== */
#notifDropdown {
    position: absolute;
    right: 0;
    top: 44px;
    width: 360px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    display: none;
    z-index: 2000;
    overflow: hidden;
}

#notifDropdown.show { display: block; }

.notification-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: background 0.15s;
    color: var(--text-secondary);
    font-size: 13px;
}

.notification-item:hover { background: rgba(255, 255, 255, 0.04); }
.notification-item.unread { background: rgba(59, 130, 246, 0.08); }
.notification-item.unread .notification-text { color: var(--text-primary); }

.notification-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-blue);
    flex-shrink: 0;
    margin-top: 6px;
}

/* ==================== AVATAR ==================== */
.avatar-sm {
    width: 26px;
    height: 26px;
    border-radius: 6px;
    object-fit: cover;
}

.avatar-md {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    object-fit: cover;
}

.avatar-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    font-size: 12px;
    border-radius: 6px;
}

/* ==================== TABLE (Admin) ==================== */
.table-dark-custom {
    background: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

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

.table-dark-custom td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 14px;
    color: var(--text-primary);
    vertical-align: middle;
}

/* ==================== BADGE / TAG ==================== */
.badge-priority { padding: 3px 10px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.priority-Low { background: #052e16; color: #22c55e; }
.priority-Medium { background: #451a03; color: #f59e0b; }
.priority-High { background: #431407; color: #f97316; }
.priority-Critical { background: #450a0a; color: #ef4444; }

.badge-role {
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

/* ==================== TOAST ==================== */
#toastContainer {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
}

/* ==================== MODAL (Dark) ==================== */
.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-primary);
}

.modal-header { border-bottom: 1px solid var(--border-color); }
.modal-footer { border-top: 1px solid var(--border-color); }
.btn-close { filter: invert(1); }

/* ==================== ACCESS DENIED ==================== */
.access-denied {
    text-align: center;
    padding: 80px 20px;
}

.access-denied h1 {
    font-size: 72px;
    font-weight: 800;
    color: var(--accent-red);
    margin-bottom: 10px;
}

/* ==================== PAGE HEADER ==================== */
.page-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1,
.page-header h2 {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

.page-header p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 4px 0 0;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.mobile-open { transform: translateX(0); }
    .main-content { margin-left: 0 !important; }
    .stat-card { padding: 12px 14px; }
}
/* ============================================================
   POPUP / TOAST BILDIRIM SISTEMI
   Bu dosyayi site.css'in SONUNA ekleyin
   ============================================================ */

/* Container - sag ust kose */
#tfPopupContainer {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 380px;
    width: 100%;
    pointer-events: none;
}

/* Tek popup karti */
.tf-popup {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #1e293b;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 14px;
    padding: 14px 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
    cursor: pointer;
    pointer-events: all;
    position: relative;
    overflow: hidden;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
}

    /* Giris animasyonu */
    .tf-popup.tf-popup-enter {
        transform: translateX(0);
        opacity: 1;
    }

    /* Cikis animasyonu */
    .tf-popup.tf-popup-exit {
        transform: translateX(120%);
        opacity: 0;
        transition: transform 0.3s ease-in, opacity 0.2s ease;
    }

    .tf-popup:hover {
        border-color: rgba(59,130,246,0.4);
        background: #1e2d44;
    }

/* Avatar - resim */
.tf-popup-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

/* Avatar - harf dairesi */
.tf-popup-avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    color: #fff;
    flex-shrink: 0;
}

/* Icon dairesi (bildirimler icin) */
.tf-popup-icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

/* Icerik */
.tf-popup-body {
    flex: 1;
    min-width: 0;
}

.tf-popup-title {
    font-size: 13px;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tf-popup-message {
    font-size: 12px;
    color: #94a3b8;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Kapatma butonu */
.tf-popup-close {
    position: absolute;
    top: 8px;
    right: 10px;
    background: none;
    border: none;
    color: #64748b;
    font-size: 16px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s;
}

.tf-popup:hover .tf-popup-close {
    opacity: 1;
}

.tf-popup-close:hover {
    color: #f1f5f9;
}

/* Alt ilerleme cubugu (zaman gostergesi) */
.tf-popup-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 0 0 14px 14px;
    animation: tfPopupProgress 6s linear forwards;
}

@keyframes tfPopupProgress {
    from {
        width: 100%;
    }

    to {
        width: 0%;
    }
}

/* Responsive */
@media (max-width: 480px) {
    #tfPopupContainer {
        top: 8px;
        right: 8px;
        left: 8px;
        max-width: none;
    }

    .tf-popup {
        padding: 12px 14px;
        border-radius: 12px;
    }
}