:root {
    --primary: #c62828;
    --primary-dark: #8e0000;
    --dark: #1a1a1a;
    --gray-bg: #f4f5f7;
    --border: #ddd;
    --success: #2e7d32;
    --error: #c62828;
    --text: #222;
}
* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--gray-bg);
    color: var(--text);
    margin: 0;
}
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }

.topbar { background: var(--dark); color: #fff; }
.topbar-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 24px; padding: 10px 20px; flex-wrap: wrap; }
.brand { color: #fff; font-weight: bold; text-decoration: none; font-size: 1.1em; }
.main-nav { display: flex; gap: 16px; flex: 1; flex-wrap: wrap; }
.main-nav a { color: #ddd; text-decoration: none; font-size: 0.95em; }
.main-nav a:hover { color: #fff; }
.user-menu { display: flex; align-items: center; gap: 12px; color: #ccc; font-size: 0.9em; }
.btn-link { color: var(--primary); text-decoration: none; background: none; border: none; cursor: pointer; font: inherit; }
.btn-link.btn-danger { color: #b00020; }

.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }

.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; }
.alert-error { background: #fdecea; color: #b00020; border: 1px solid #f5c6cb; }
.alert-success { background: #e8f5e9; color: #1b5e20; border: 1px solid #c8e6c9; }

.btn { display: inline-block; padding: 9px 16px; border-radius: 6px; border: none; cursor: pointer; font-size: 0.95em; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #e0e0e0; color: #222; }
.btn-secondary:hover { background: #cfcfcf; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

.form-stack { display: flex; flex-direction: column; gap: 14px; max-width: 420px; }
.form-stack label { display: flex; flex-direction: column; gap: 4px; font-size: 0.9em; font-weight: 600; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 0.88em; font-weight: 600; }
.form-grid .span-2 { grid-column: span 2; }
input, select, textarea {
    padding: 8px 10px; border: 1px solid var(--border); border-radius: 5px; font-size: 0.95em; font-family: inherit;
}
.auth-box { max-width: 380px; margin: 60px auto; background: #fff; padding: 30px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.08); }

.data-table { width: 100%; border-collapse: collapse; background: #fff; margin: 12px 0 24px; }
.data-table th, .data-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.92em; }
.data-table thead th { background: var(--dark); color: #fff; }
.data-table tfoot td { font-weight: 600; border-top: 2px solid var(--dark); }
.data-table tfoot .grand-total td { font-size: 1.05em; color: var(--primary); }

.badge { padding: 3px 8px; border-radius: 12px; font-size: 0.8em; color: #fff; background: #888; }
.badge-taslak { background: #757575; }
.badge-gonderildi { background: #1565c0; }
.badge-onaylandi { background: #2e7d32; }
.badge-reddedildi { background: #c62828; }
.badge-iptal { background: #424242; }

.stat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin: 16px 0; }
.stat-card { background: #fff; border-radius: 8px; padding: 16px; text-align: center; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.stat-num { display: block; font-size: 1.8em; font-weight: bold; }
.stat-draft .stat-num { color: #757575; }
.stat-sent .stat-num { color: #1565c0; }
.stat-approved .stat-num { color: #2e7d32; }
.stat-rejected .stat-num { color: #c62828; }
.stat-cancel .stat-num { color: #424242; }

.rate-strip { background: #fff3e0; border: 1px solid #ffe0b2; padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; display: flex; gap: 20px; flex-wrap: wrap; font-size: 0.92em; }

.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 16px 0; }
.quote-box { background: #fff; border-radius: 8px; padding: 14px 16px; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.quote-box h3 { margin-top: 0; font-size: 1em; border-bottom: 1px solid var(--border); padding-bottom: 6px; }

.logo-thumb { max-height: 40px; max-width: 100px; }
.logo-preview { display: block; margin-top: 8px; max-height: 60px; }
.qr-image { width: 130px; height: 130px; }

.inline-search { display: flex; gap: 8px; margin-bottom: 14px; }
.inline-search input { flex: 1; max-width: 320px; }

.totals-preview { margin-top: 10px; font-weight: 600; }
.muted { color: #777; font-size: 0.9em; }

.site-footer { text-align: center; padding: 20px; color: #999; font-size: 0.85em; }

@media (max-width: 800px) {
    .form-grid, .quote-grid { grid-template-columns: 1fr; }
    .form-grid .span-2 { grid-column: span 1; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
}