:root {
    --dark-bg: #1a1a2e;
    --darker-bg: #16213e;
    --dark-card: #0f3460;
    --dark-border: #2a3a5e;
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --text-color: #e6e6e6;
    --text-muted: #b8b8b8;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-color);
}

.navbar {
    background-color: var(--darker-bg) !important;
    border-bottom: 1px solid var(--dark-border);
}

.card {
    background-color: var(--dark-card);
    border: 1px solid var(--dark-border);
}

.table {
    color: var(--text-color);
}

.table-hover > tbody > tr:hover {
    --bs-table-accent-bg: rgba(255, 255, 255, 0.05);
}

.form-control, .form-select {
    background-color: var(--darker-bg);
    border-color: var(--dark-border);
    color: var(--text-color);
}

.form-control:focus, .form-select:focus {
    background-color: var(--darker-bg);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

.dropdown-menu {
    background-color: var(--dark-card);
    border: 1px solid var(--dark-border);
}

.dropdown-item {
    color: var(--text-color);
}

.dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

.modal-content {
    background-color: var(--dark-card);
    border: 1px solid var(--dark-border);
}

.modal-header, .modal-footer {
    border-color: var(--dark-border);
}

.alert-success {
    background-color: rgba(46, 204, 113, 0.2);
    border-color: rgba(46, 204, 113, 0.3);
    color: #d1f3da;
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.2);
    border-color: rgba(231, 76, 60, 0.3);
    color: #f8d7da;
}

/* Özel bileşenler */
.initials-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    font-weight: bold;
    font-size: 1.5rem;
}

.initials-circle.large {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
}

.message.sent {
    background-color: rgba(52, 152, 219, 0.2);
    border-left: 3px solid var(--primary-color);
}

.message.received {
    background-color: rgba(46, 204, 113, 0.2);
    border-left: 3px solid var(--secondary-color);
}