:root {
  --primary: #0f766e;
  --primary-dark: #0b5e58;
  --primary-soft: #e6f7f5;
  --bg: #f4f7f8;
  --surface: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e6e9ee;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05), 0 1px 1px rgba(15, 23, 42, .03);
  --shadow: 0 10px 26px -14px rgba(15, 23, 42, .28);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  font-family: var(--font);
  background: linear-gradient(180deg, #f8fafb 0%, #f1f5f6 100%) fixed;
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
}

h2 { font-size: 15px; font-weight: 600; margin: 0 0 14px; letter-spacing: -.01em; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: linear-gradient(120deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 16px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  box-shadow: var(--shadow);
}
.topbar h1 { font-size: 16.5px; font-weight: 650; margin: 0; letter-spacing: .1px; }
.topbar-right { display: flex; gap: 18px; align-items: center; font-size: 13.5px; }
.topbar-right span { opacity: .85; }
.topbar-right a {
  color: rgba(255, 255, 255, .92);
  text-decoration: none;
  padding: 6px 11px;
  border-radius: 999px;
  transition: background .15s ease, color .15s ease;
}
.topbar-right a:hover { background: rgba(255, 255, 255, .16); color: #fff; }

.container { max-width: 1100px; margin: 0 auto; padding: 32px 20px 70px; }

/* ---------- Cards ---------- */
.cards { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 24px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  min-width: 230px;
  flex: 1;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-1px); }
.card-label { color: var(--muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.card-value { font-size: 27px; font-weight: 700; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.card-sub { font-size: 13px; color: var(--muted); font-weight: 400; margin-left: 6px; }

/* ---------- Panels (chart / table / filters) ---------- */
.chart-box, .table-box, .filters {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.chart-box h2 { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }

/* ---------- Forms & buttons ---------- */
.filter-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

input[type="text"], input[type="date"], input[type="password"], select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
  transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, .12);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(15, 118, 110, .25);
  transition: background .15s ease, transform .05s ease, box-shadow .15s ease;
}
button:hover { background: var(--primary-dark); }
button:active { transform: translateY(1px); }

.reset-link { font-size: 13px; color: var(--muted); text-decoration: none; padding: 10px 6px; }
.reset-link:hover { color: var(--text); text-decoration: underline; }

.error {
  color: var(--danger);
  background: var(--danger-soft);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
}

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
  text-align: left;
  padding: 12px 14px;
  color: var(--muted);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 2px solid var(--border);
}
tbody td { padding: 13px 14px; border-bottom: 1px solid var(--border); }
tbody tr { transition: background .12s ease; }
tbody tr:hover { background: var(--bg); }
tbody tr:last-child td { border-bottom: none; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

.pagination { display: flex; justify-content: center; gap: 18px; align-items: center; margin-top: 16px; font-size: 13.5px; color: var(--muted); }
.pagination a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  transition: background .15s ease;
}
.pagination a:hover { background: var(--primary-soft); }

/* ---------- Login ---------- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(circle at 50% 0%, #e9f8f6 0%, #eef2f6 55%, #eef2f6 100%);
  padding: 20px;
}
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 42px 34px;
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow);
}
.login-box h1 { font-size: 19px; margin: 0; text-align: center; font-weight: 700; letter-spacing: -.01em; color: var(--primary-dark); }
.login-box .subtitle { text-align: center; color: var(--muted); font-size: 13px; margin: 4px 0 20px; }
.login-box label { font-size: 12px; font-weight: 600; color: var(--muted); margin-top: 10px; text-transform: uppercase; letter-spacing: .05em; }
.login-box input { width: 100%; padding: 11px 12px; font-size: 14.5px; margin-top: 5px; }
.login-box button { margin-top: 22px; padding: 12px; font-size: 14.5px; }
.login-box .error { margin: 4px 0 0; }

/* ---------- QR grid ---------- */
.qr-grid { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  width: 230px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease;
}
.qr-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.qr-item img { width: 100%; max-width: 200px; height: auto; border-radius: 10px; border: 1px solid var(--border); padding: 6px; background: #fff; }
.qr-item .lambung-label { font-weight: 700; margin: 12px 0 4px; font-size: 15px; letter-spacing: .02em; }
.qr-item .qr-url { font-size: 10.5px; color: var(--muted); word-break: break-all; margin: 6px 0 10px; }
.qr-item a { color: var(--primary); font-size: 13px; font-weight: 600; text-decoration: none; }
.qr-item a:hover { text-decoration: underline; }

.qr-actions { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
.btn-small {
  font-size: 12.5px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-weight: 600;
  box-shadow: none;
}
.btn-small:hover { background: var(--bg); }
.btn-danger { border-color: #fecaca; color: var(--danger); background: #fff; }
.btn-danger:hover { background: var(--danger-soft); }

/* ---------- Password field with show/hide toggle ---------- */
.pw-field { position: relative; display: flex; align-items: center; }
.pw-field input { width: 100%; padding-right: 42px !important; }
.pw-toggle {
  position: absolute;
  right: 4px;
  background: none;
  border: none;
  box-shadow: none;
  color: var(--muted);
  font-size: 16px;
  padding: 6px 9px;
  border-radius: 8px;
}
.pw-toggle:hover { background: var(--bg); color: var(--text); }