:root {
  /* Brand / neutrals */
  --brand-navy: #0C1E28;
  --brand-teal: #00796B;
  --brand-teal-light: #009688;
  --brand-teal-container: #E0F2F1;
  --brand-blue: #1E40AF;
  --brand-blue-container: #EFF6FF;

  /* Mockup UI */
  --mockup-navy-hero: #002B5C;
  --mockup-navy-hero-dark: #001F44;
  --mockup-navy-button: #002D62;
  --mockup-navy-badge: #002654;
  --mockup-navy-action: #163E70;
  --btn-grad-from: #001A3D;
  --btn-grad-to: #0B5FC4;
  --green-grad-from: #3A9A18;
  --green-grad-to: #6FD43A;
  --green-plus: #52B72A;
  --green-live: #388E3C;
  --red-grad-from: #B91C1C;
  --red-grad-to: #EF4444;
  --mockup-cyan: #00A3FF;
  --mockup-primary-blue: #0284C7;
  --soft-blue-card: #EDF4FA;
  --soft-blue-pill: #D6E6F7;
  --peach: #FFD8BE;
  --orange: #EA580C;
  --waiting-bg: #FFE2D1;

  /* App tokens */
  --bg: #F8FAFC;
  --bg-elevated: #FFFFFF;
  --surface: #FFFFFF;
  --surface-2: #EDF4FA;
  --border: #E2E8F0;
  --border-subtle: #F1F5F9;
  --text: #0F172A;
  --text-secondary: #475569;
  --muted: #94A3B8;
  --accent: #002D62;
  --accent-2: #0284C7;
  --danger: #B91C1C;
  --info: #0284C7;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 16px;
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(11, 95, 196, 0.08), transparent 55%),
    radial-gradient(900px 500px at 95% 0%, rgba(0, 163, 255, 0.06), transparent 50%),
    var(--bg);
  line-height: 1.5;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  z-index: 0;
}

.topbar,
.page,
.site-footer {
  position: relative;
  z-index: 1;
}

.topbar {
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.86);
  position: sticky;
  top: 0;
}

.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.7rem;
  background:
    linear-gradient(145deg, var(--btn-grad-to), var(--btn-grad-from) 60%, var(--mockup-cyan));
  box-shadow: 0 0 0 1px rgba(0, 43, 92, 0.12), 0 8px 24px rgba(11, 95, 196, 0.28);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-text strong {
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--mockup-navy-hero);
}

.brand-text small {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.topnav {
  display: flex;
  gap: 0.5rem;
}

.topnav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9rem;
}

.topnav a:hover,
.topnav a.is-active {
  color: var(--mockup-navy-button);
  border-color: var(--border);
  background: var(--soft-blue-card);
}

.logout-form {
  display: inline-flex;
  margin: 0;
}

.topnav-btn {
  font: inherit;
  cursor: pointer;
  color: var(--text-secondary);
  background: transparent;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9rem;
}

.topnav-btn:hover {
  color: var(--mockup-navy-button);
  border-color: var(--border);
  background: var(--soft-blue-card);
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3rem;
}

.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--mockup-navy-hero) 0%, var(--mockup-navy-hero-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow);
}

.hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
  color: #fff;
}

.hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  max-width: 42rem;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: var(--mockup-navy-action);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.82rem;
  white-space: nowrap;
}

.meta-pill .dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--green-plus);
  box-shadow: 0 0 0 4px rgba(82, 183, 42, 0.25);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.grid-clients {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.client-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem 1.15rem;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.client-card:hover {
  transform: translateY(-3px);
  border-color: var(--soft-blue-pill);
  box-shadow: 0 14px 36px rgba(0, 45, 98, 0.12);
}

.client-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
  color: var(--mockup-navy-hero);
}

.client-card .id {
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-bottom: 1rem;
}

.client-card .stats-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.client-card .stats-row strong {
  color: var(--text);
  font-weight: 600;
}

.empty-state,
.alert {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  background: var(--surface);
}

.alert {
  text-align: left;
  border-style: solid;
  margin-bottom: 1.25rem;
}

.alert-error {
  border-color: #FECDD3;
  background: #FFE4E6;
  color: #BE123C;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.stat .label {
  color: var(--text-secondary);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat .value {
  font-family: var(--display);
  font-size: 2rem;
  margin-top: 0.2rem;
  line-height: 1.1;
  color: var(--mockup-navy-hero);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1.15rem;
  border-bottom: 1px solid var(--border);
  background: var(--soft-blue-card);
}

.panel-header h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--mockup-navy-hero);
}

.panel-header span {
  color: var(--text-secondary);
  font-size: 0.82rem;
}

.table-wrap {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.data th,
table.data td {
  padding: 0.7rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

table.data th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  background: var(--border-subtle);
}

table.data tr:last-child td {
  border-bottom: none;
}

table.data tbody tr:hover td {
  background: var(--soft-blue-card);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-waiting { color: #B45309; background: #FEF3C7; border-color: #FDE68A; }
.badge-inclinic { color: #0369A1; background: #E0F2FE; border-color: #BAE6FD; }
.badge-notified { color: #047857; background: #D1FAE5; border-color: #A7F3D0; }
.badge-completed { color: #1D4ED8; background: #DBEAFE; border-color: #BFDBFE; }
.badge-cancelled { color: #BE123C; background: #FFE4E6; border-color: #FECDD3; }
.badge-failed { color: #BE123C; background: #FFE4E6; border-color: #FECDD3; }
.badge-muted { background: var(--border-subtle); color: var(--text-secondary); border-color: var(--border); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--mockup-primary-blue);
  text-decoration: none;
  margin-bottom: 0.85rem;
  font-size: 0.9rem;
}

.back-link:hover {
  color: var(--mockup-navy-button);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.tabs a {
  text-decoration: none;
  color: var(--text-secondary);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.86rem;
  background: var(--surface);
}

.tabs a.is-active,
.tabs a:hover {
  color: #fff;
  border-color: var(--mockup-navy-button);
  background: var(--mockup-navy-button);
}

.login-wrap {
  min-height: calc(100vh - 4rem);
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.login-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-family: var(--display);
  font-weight: 400;
  margin: 0 0 0.35rem;
  color: var(--mockup-navy-hero);
}

.login-card p {
  color: var(--text-secondary);
  margin: 0 0 1.25rem;
}

.login-card label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.login-card input {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  margin-bottom: 1rem;
}

.login-card button {
  width: 100%;
  border: none;
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--btn-grad-from), var(--btn-grad-to));
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  padding-bottom: 1.5rem;
}

.mono {
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86em;
}

.muted {
  color: var(--muted);
}

.alert-ok {
  border-color: #A7F3D0;
  background: #D1FAE5;
  color: #047857;
}

.alert-warn {
  border-color: #FDE68A;
  background: #FEF3C7;
  color: #B45309;
}

.current-code-body {
  padding: 1.15rem 1.25rem 1.25rem;
}

.code-display {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.code-display code {
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--soft-blue-pill);
  background: var(--soft-blue-card);
  color: var(--mockup-navy-button);
}

.activation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.25rem;
  align-items: start;
}

.activation-side {
  display: grid;
  gap: 1.25rem;
}

.codes-form,
.upload-form,
.hash-body {
  padding: 1rem 1.15rem 1.15rem;
}

.codes-list {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.code-row {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  padding: 0.35rem 0.45rem;
  border-radius: 10px;
}

.code-row.is-current {
  background: var(--soft-blue-card);
  border: 1px solid var(--soft-blue-pill);
}

.month-label {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.month-label em {
  display: inline-block;
  margin-left: 0.35rem;
  font-style: normal;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--mockup-primary-blue);
}

.code-row input,
.codes-form textarea,
.upload-form input[type="file"],
.hash-box {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.code-row input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.02em;
}

.notes-label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.codes-form textarea {
  margin-bottom: 1rem;
  resize: vertical;
}

.upload-help {
  margin-top: 0;
  margin-bottom: 0.85rem;
  font-size: 0.88rem;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.btn-primary,
.btn-secondary,
.btn-danger {
  border: none;
  border-radius: 10px;
  padding: 0.65rem 0.95rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--btn-grad-from), var(--btn-grad-to));
}

.btn-secondary {
  color: var(--mockup-navy-button);
  background: var(--soft-blue-card);
  border: 1px solid var(--soft-blue-pill);
}

.btn-danger {
  color: #fff;
  background: linear-gradient(135deg, var(--red-grad-from), var(--red-grad-to));
  border: 1px solid transparent;
}

.hash-box {
  resize: vertical;
  font-size: 0.78rem;
  line-height: 1.45;
}

table.data tr.row-current td {
  background: var(--soft-blue-card);
}

@media (max-width: 900px) {
  .activation-grid {
    grid-template-columns: 1fr;
  }
  .code-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

@media (max-width: 640px) {
  .topbar-inner {
    flex-wrap: wrap;
    padding: 0.7rem 1rem;
  }
  .topnav {
    flex-wrap: wrap;
    width: 100%;
    gap: 0.25rem;
  }
  .hero {
    align-items: start;
  }
  table.data th,
  table.data td {
    padding: 0.6rem 0.75rem;
  }
}

/* ---- admin page ---- */
.admin-box { padding: 1rem 1.25rem 1.25rem; }
.admin-form label { display: block; margin: 0.8rem 0 0.3rem; color: var(--text-secondary); font-size: 0.85rem; }
.admin-form input[type="text"], .admin-form input[type="password"], .admin-form input[type="file"], .admin-form textarea {
  width: 100%; max-width: 38rem; padding: 0.6rem 0.75rem; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit;
}
form.inline { display: inline; margin: 0; }
.code-display { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.code-display code { overflow-wrap: anywhere; }