* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: #f4f6fb; color: #1c2733; }
a { color: #1a56cf; text-decoration: none; }

.hidden { display: none; }
.text-muted { color: #77808c; }

.btn {
  display: inline-block; padding: 0.45rem 0.9rem; border: 1px solid transparent;
  background: #1a56cf; color: #fff; border-radius: 6px; cursor: pointer; font-size: 0.9rem;
}
.btn:hover { background: #1648b0; }
.btn-outline { background: transparent; color: #1c2733; border: 1px solid #c9d2df; }
.btn-danger { background: #d9353a; color: #fff; }
.btn-sm { padding: 0.2rem 0.55rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* Login */
.login-view { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: #eaeef6; }
.login-box { background: #fff; padding: 2.5rem 3rem; border-radius: 12px; box-shadow: 0 4px 18px rgba(0,0,0,.08); text-align: center; max-width: 380px; }
.login-box h1 { margin-top: 0; color: #14324f; }
.login-box .btn { display: block; margin: 1.2rem auto 0; width: 220px; padding: .7rem; font-size: 1rem; }

/* App shell */
.topbar { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.5rem; background: #fff; border-bottom: 1px solid #dde3ec; }
.topbar h1 { margin: 0; font-size: 1.25rem; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: .6rem; }

.tabs { display: flex; gap: .4rem; flex-wrap: wrap; padding: .6rem 1.2rem; }
.tab-btn { border: 1px solid #c9d2df; background: #fff; padding: .5rem .95rem; border-radius: 8px; cursor: pointer; }
.tab-btn.active { background: #1a56cf; color: #fff; }
.badge { display: inline-block; min-width: 1.4rem; padding: 0 .35rem; border-radius: 999px; background: #d9353a; color: #fff; font-size: .75rem; }

.cards-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .9rem; padding: .6rem 1.2rem; }
.stat-box { background: #fff; border: 1px solid #dde3ec; border-radius: 10px; padding: .9rem 1rem; text-align: center; }
.stat-num { display: block; font-size: 1.4rem; font-weight: 700; }
.stat-label { font-size: .78rem; color: #77808c; }

.tab-pane { padding: .6rem 1.2rem; }
.card { background: #fff; border: 1px solid #dde3ec; border-radius: 10px; padding: 1rem 1.2rem; margin: 0.75rem 0; }
.card h3 { margin: .2rem 0 .8rem; }
.inline-row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
input, select { padding: .45rem .6rem; border: 1px solid #c9d2df; border-radius: 6px; font: inherit; }
input[type=date], input[type=time] { padding-top: .35rem; padding-bottom: .35rem; }

.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: .8rem; }
.grid-form label { display: flex; flex-direction: column; gap: .3rem; font-size: .85rem; }

.table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.table th, .table td { padding: .5rem .6rem; border-bottom: 1px solid #e6eaf1; text-align: left; }
.table th { background: #f0f3f8; color: #3a4553; font-weight: 600; }
code { background: #eef1f6; padding: 0 .3rem; border-radius: 4px; font-size: .85em; }

/* Modals */
.modal { position: fixed; inset: 0; background: rgba(20,30,45,.45); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal.hidden { display: none; }
.modal-box { background: #fff; border-radius: 12px; padding: 1.4rem 1.6rem; width: 460px; max-width: 94vw; max-height: 90vh; overflow: auto; }
.modal-head { display: flex; align-items: center; }
.modal-head h3 { margin: 0; flex: 1; }

.alert { display: block; margin-top: .6rem; font-size: .85rem; }
.alert-error { color: #b3261e; }
.alert-ok { color: #1f8a3a; }
.alert.hidden { display: none; }

.actions-cell { white-space: nowrap; }
button + button { margin-left: .35rem; }