/* SureTrack - Global Design System */

:root {
    --primary-color: #0f172a; /* Derin Lacivert */
    --accent-color: #3b82f6;  /* Parlak Teknoloji Mavisi */
    --success-color: #10b981; /* Canlı Yeşil */
    --bg-color: #f8fafc;      /* Çok Açık Gri (Slate 50) */
    --text-color: #334155;    /* Koyu Gri (Slate 700) */
    --card-bg: #ffffff;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

/* Navbar */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e293b 100%);
}

.navbar-brand {
    letter-spacing: 0.5px;
}

.nav-link {
    font-weight: 500;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--accent-color) !important;
    transform: translateY(-1px);
}

/* Cards */
.card {
    border: none;
    border-radius: 16px;
    background-color: var(--card-bg);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Forms & Inputs */
.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid #cbd5e1;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-label {
    font-weight: 500;
    color: #475569;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    border-radius: 10px;
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background-color: #2563eb;
    border-color: #2563eb;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-success:hover {
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* Tables */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background-color: #f1f5f9;
    color: #475569;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-top: none;
    padding: 1rem;
}

.table tbody td {
    vertical-align: middle;
    padding: 1rem;
    color: #334155;
    border-bottom: 1px solid #f1f5f9;
}

/* Utilities */
.text-primary { color: var(--accent-color) !important; }
.bg-primary { background-color: var(--accent-color) !important; }

.badge {
    padding: 0.5em 0.8em;
    border-radius: 6px;
    font-weight: 600;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Login Page Specific */
.login-card-header {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    border-radius: 16px 16px 0 0 !important;
}