:root { --dgb: #1d4ed8; --bg: #f7f8fa; --line: #e2e5ea; }

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, "Segoe UI", sans-serif; color: #1a1d21; background: var(--bg); }

.page { min-height: 100vh; }

.topbar {
    display: flex; align-items: center; gap: 1.5rem;
    padding: 0.75rem 1.5rem; background: #fff; border-bottom: 1px solid var(--line);
}
.brand { font-weight: 600; }
.brand em { color: #8a8f98; font-style: normal; font-size: 0.8rem; }
.nav-links { display: flex; gap: 1rem; }
.nav-links a { text-decoration: none; color: #4a4f57; }
.nav-links a.active { color: var(--dgb); font-weight: 600; }
.user-box { margin-left: auto; display: flex; align-items: center; gap: 0.75rem; font-size: 0.9rem; }
.link-btn { background: none; border: none; color: var(--dgb); cursor: pointer; padding: 0; font: inherit; }

main { padding: 1.5rem; max-width: 960px; }

.btn { background: var(--dgb); color: #fff; border: none; border-radius: 6px; padding: 0.5rem 1rem; cursor: pointer; }
.btn:disabled { opacity: 0.6; cursor: default; }

.grid { border-collapse: collapse; width: 100%; margin-top: 1rem; background: #fff; }
.grid th, .grid td { border: 1px solid var(--line); padding: 0.4rem 0.6rem; text-align: left; font-size: 0.9rem; }

.error { color: #b91c1c; }
.success { color: #15803d; }
.muted { color: #8a8f98; }

/* Cards / sections */
.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 1rem 1.25rem; margin-top: 1rem; }
.card > h2, .card > h3 { margin-top: 0; }
.section-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.75rem; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 0.75rem; }
.field label { font-size: 0.8rem; color: #4a4f57; font-weight: 600; }
.field input, .field select, .field textarea {
    padding: 0.4rem 0.5rem; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #fff;
}
.field-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.field-row > .field { flex: 1 1 200px; }
.check { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.check input { width: auto; }

.btn-secondary { background: #fff; color: var(--dgb); border: 1px solid var(--dgb); border-radius: 6px; padding: 0.5rem 1rem; cursor: pointer; }
.btn-danger { background: #fff; color: #b91c1c; border: 1px solid #b91c1c; border-radius: 6px; padding: 0.4rem 0.8rem; cursor: pointer; }
.btn-secondary:disabled, .btn-danger:disabled { opacity: 0.6; cursor: default; }

/* Badges */
.badge { display: inline-block; font-size: 0.72rem; font-weight: 600; padding: 0.1rem 0.45rem; border-radius: 999px; vertical-align: middle; }
.badge-shared { background: #fef3c7; color: #92400e; }
.badge-pending { background: #e0e7ff; color: #3730a3; }
.badge-confirmed { background: #dcfce7; color: #166534; }
.badge-failed { background: #fee2e2; color: #991b1b; }