:root {
    --accent-color: #b0b4ba;
    --background-color: #ffffff;
    --card-bg: #ffffff;
    --text-color: #111827;
    --muted-color: #6b7280;
    --border-radius: 8px;
    --th-bg: #405d96;
    --th-text: #fafafa;
    --btn-bg: #000000;
    --btn-text: #ffffff;
    --btn-hover-bg: #405d96;
}

/* Base layout */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--background-color);
    color: var(--text-color);
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 240px;
    background: linear-gradient(135deg, #383a85 100%, #9d99cc);
    color: #e5e7eb;
    padding: 1rem 0;
}

.sidebar .nav-brand {
    padding: 0.5rem 1rem 1rem;
    font-weight: 600;
    font-size: 1rem;
}

.sidebar .nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar .nav-links li {
    margin: 0;
}

.sidebar .nav-links a {
    display: block;
    padding: 0.5rem 1.25rem;
    text-decoration: none;
    color: #e5e7eb;
    font-size: 0.9rem;
}

.sidebar .nav-links a:hover {
    background: rgba(15, 23, 42, 0.18);
}

/* Main */
.main {
    flex: 1;
    padding: 1.5rem;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
    box-shadow: 0 10px 25px rgba(15,23,42,0.12);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

/* Buttons */
.btn-primary,
.btn-outline,
.btn-small,
.btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--btn-hover-bg);
}

.btn-outline {
    background: transparent;
    color: var(--btn-bg);
    border-color: var(--btn-bg);
}

.btn-outline:hover {
    background: rgba(148,163,184,0.15);
}

.btn-small {
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
}

.btn-danger {
    background: #ef4444;
    color: #ffffff;
    border-color: #ef4444;
}

.btn-danger:hover {
    background: #b91c1c;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 500;
}

.badge-success {
    background: #dcfce7;
    color: #16a34a;
}

.badge-warning {
    background: #fef9c3;
    color: #a16207;
}

.badge-danger {
    background: #fee2e2;
    color: #b91c1c;
}

.badge-info {
    background: #dbeafe;
    color: #1d4ed8;
}

/* FORMS */
input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 0.4rem 0.5rem;
    border-radius: 0.4rem;
    border: 1px solid #d1d5db;
    background: #ffffff;
    font-size: 0.9rem;
}

label {
    display: block;
    font-size: 0.8rem;
    margin-bottom: 0.2rem;
}

/* TABLES: GENERAL ÇÖZÜM */
.table-wrap {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed; /* sabit kolonlar, taşmayı azaltır */
}

.table th,
.table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid #e5e7eb;
    vertical-align: top;
    word-break: break-word;    /* uzun kelimeleri kır */
    white-space: normal;       /* satıra sığmazsa sarılsın */
}

/* Table header colors from theme */
.table thead th {
    background: var(--th-bg);
    color: var(--th-text);
    font-size: 0.8rem;
}

.table tbody tr:nth-child(even) {
        background: rgba(148,163,184,0.08);
    }

/* Responsive */
@media (max-width: 900px) {
    .sidebar {
        display: none;
    }
    .main {
        padding: 1rem;
    }
    .card-grid {
        grid-template-columns: minmax(0,1fr);
    }
    .card .table {
        font-size: 0.8rem;
    }
}