:root {
  --bg: #e0e5ec;
  --surface: #e8ecf1;
  --shadow-dark: #a3b1c6;
  --shadow-light: #ffffff;
  --text: #31344b;
  --muted: #6b7280;
  --blue: #4f7df3;
  --blue-hover: #3b66d6;
  --green: #2ecc71;
  --orange: #f59e0b;
  --red: #e74c3c;
  --gray: #6b7280;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 24px;
}

.muted { color: var(--muted); font-size: 13px; }
.center { text-align: center; }
.hide { display: none !important; }

/* LOGIN */
.center-view {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
}
.login-card {
  background: var(--surface);
  padding: 40px;
  border-radius: 24px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: 12px 12px 24px var(--shadow-dark), -12px -12px 24px var(--shadow-light);
}
.login-card .logo {
  font-size: 48px;
  margin-bottom: 12px;
}
.login-card h2 {
  font-size: 22px;
  margin-bottom: 6px;
}
.login-card input {
  width: 100%;
  margin: 20px 0 14px;
  padding: 14px;
  border: none;
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  font-size: 15px;
  outline: none;
  box-shadow: inset 6px 6px 12px var(--shadow-dark), inset -6px -6px 12px var(--shadow-light);
}
.login-card input:focus {
  box-shadow: inset 6px 6px 12px var(--shadow-dark), inset -6px -6px 12px var(--shadow-light), 0 0 0 2px var(--blue);
}

/* TOPBAR */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--surface);
  border-radius: 20px;
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo-sm { font-size: 32px; }
.brand h1 { font-size: 18px; }
.brand p { font-size: 12px; }

/* STATS */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  padding: 18px 20px;
  border-radius: 20px;
  box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
}
.stat-card .label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin-bottom: 6px;
}
.stat-card .value {
  font-size: 26px;
  font-weight: 700;
}
.stat-card.pending .value { color: var(--orange); }
.stat-card.active .value { color: var(--green); }
.stat-card.locked .value { color: var(--red); }
.stat-card.expired .value { color: var(--gray); }

/* CARDS */
.card {
  background: var(--surface);
  border-radius: 24px;
  padding: 24px 28px;
  margin-bottom: 24px;
  box-shadow: 12px 12px 24px var(--shadow-dark), -12px -12px 24px var(--shadow-light);
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}

/* FORM */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.field input, .field select {
  padding: 12px 14px;
  border: none;
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  outline: none;
  box-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light);
}
.field input:focus, .field select:focus {
  box-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light), 0 0 0 2px var(--blue);
}

/* BUTTONS */
.btn {
  padding: 12px 20px;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s;
}
.btn.primary {
  background: var(--blue);
  color: white;
  box-shadow: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
}
.btn.primary:hover { background: var(--blue-hover); }
.btn.ghost {
  background: var(--surface);
  color: var(--text);
  box-shadow: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
}
.btn.ghost:hover { color: var(--blue); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  margin: 2px;
  box-shadow: 2px 2px 4px var(--shadow-dark), -2px -2px 4px var(--shadow-light);
  background: var(--surface);
}
.btn-sm:hover { transform: translateY(-1px); }
.btn-sm:active { box-shadow: inset 2px 2px 4px var(--shadow-dark), inset -2px -2px 4px var(--shadow-light); }
.btn-sm.green { color: var(--green); }
.btn-sm.orange { color: var(--orange); }
.btn-sm.blue { color: var(--blue); }
.btn-sm.red { color: var(--red); }

/* MESSAGES */
.msg {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  display: none;
}
.msg.show { display: block; }
.msg.ok { background: rgba(46, 204, 113, 0.12); color: #047857; }
.msg.err { background: rgba(231, 76, 60, 0.12); color: #991b1b; }

/* FILTER */
.row-between {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 12px;
}
.filter {
  display: flex; gap: 8px; align-items: center;
  flex-wrap: wrap;
}
.filter label { font-size: 12px; color: var(--muted); }
.filter select {
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  outline: none;
  box-shadow: inset 3px 3px 6px var(--shadow-dark), inset -3px -3px 6px var(--shadow-light);
}

/* TABLE */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th {
  text-align: left;
  padding: 12px 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 2px solid rgba(0,0,0,0.05);
}
td {
  padding: 12px 8px;
  border-bottom: 1px solid rgba(0,0,0,0.03);
  vertical-align: middle;
}
td.mono { font-family: Consolas, monospace; font-size: 12px; }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.badge.PENDING { background: rgba(245, 158, 11, 0.15); color: #b45309; }
.badge.ACTIVE { background: rgba(46, 204, 113, 0.15); color: #047857; }
.badge.LOCKED { background: rgba(231, 76, 60, 0.15); color: #991b1b; }
.badge.INACTIVE { background: rgba(107, 114, 128, 0.15); color: #374151; }
.badge.EXPIRED { background: rgba(107, 114, 128, 0.15); color: #374151; }