:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #d9e2ec;
  --primary: #0f766e;
  --primary-strong: #0b5f59;
  --danger: #b91c1c;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(20, 184, 166, 0.18), transparent 30rem),
    linear-gradient(180deg, #f8fafc, var(--bg));
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  padding: 0 13px;
  font-weight: 800;
  cursor: pointer;
}

button:hover {
  border-color: #9fb3c8;
  transform: translateY(-1px);
}

button.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
}

button.large {
  min-height: 48px;
}

button.danger {
  color: var(--danger);
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  padding: 0 11px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.license-shell {
  width: min(1240px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
  display: grid;
  gap: 18px;
}

.login-layout {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 420px);
  gap: 18px;
  align-items: stretch;
}

.login-hero {
  min-height: 560px;
  display: grid;
  align-content: end;
  gap: 12px;
  padding: 34px;
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(15, 118, 110, 0.92), rgba(15, 23, 42, 0.96)),
    #0f172a;
  color: #ffffff;
  box-shadow: var(--shadow);
}

.login-hero span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-hero h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.02;
}

.login-hero p {
  margin: 0;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.55;
}

.login-panel {
  align-self: center;
  display: grid;
  gap: 14px;
  padding: 22px;
}

.hero {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 18px;
  padding: 28px;
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.94), rgba(15, 23, 42, 0.96)),
    #0f172a;
  color: #ffffff;
  box-shadow: var(--shadow);
}

.hero span,
.panel-title span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 7px 0 8px;
  font-size: clamp(28px, 4vw, 48px);
  letter-spacing: 0;
}

.hero p {
  margin: 0;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
}

.hero-card {
  min-width: 250px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-card strong,
.hero-card span {
  display: block;
}

.hero-card strong {
  font-size: 22px;
}

.hero-card span {
  text-transform: none;
  letter-spacing: 0;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.toolbar,
.top-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(280px, 1fr) auto auto;
  gap: 10px;
  align-items: end;
  padding: 14px;
}

.top-panel {
  grid-template-columns: minmax(190px, 0.5fr) minmax(280px, 1fr) auto auto auto;
}

.user-session {
  display: grid;
  gap: 2px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.user-session small,
.user-session span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
}

.user-session strong {
  font-size: 14px;
}

.admin-tabs {
  display: flex;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.admin-tabs button {
  flex: 0 0 auto;
  border-color: transparent;
  background: transparent;
}

.admin-tabs button.active {
  border-color: color-mix(in srgb, var(--primary) 38%, var(--line));
  background: color-mix(in srgb, var(--primary) 12%, #ffffff);
  color: var(--primary-strong);
}

.grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.38fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.form-panel,
.list-panel {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.users-grid {
  grid-template-columns: minmax(300px, 0.34fr) minmax(0, 1fr);
}

.panel-title {
  display: grid;
  gap: 3px;
}

.panel-title span {
  color: var(--primary-strong);
}

.panel-title strong {
  font-size: 20px;
}

.panel-title.row {
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.38fr);
  align-items: end;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

fieldset {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

fieldset label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}

fieldset input {
  width: 16px;
  min-height: 16px;
  accent-color: var(--primary);
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
}

.inline-check input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--primary);
}

.button-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.message {
  padding: 12px;
  border-radius: 8px;
  background: #e9f7f4;
  color: #075f56;
  font-weight: 800;
}

.message.error {
  background: #fff1f2;
  color: #9f1239;
}

.hidden {
  display: none;
}

.license-list {
  display: grid;
  gap: 12px;
}

.license-card,
.user-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #ffffff;
}

.user-list {
  display: grid;
  gap: 10px;
}

.user-card {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.user-card h2,
.user-card p {
  margin: 0;
}

.user-card h2 {
  margin-top: 7px;
  font-size: 17px;
}

.user-card p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.card-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.card-head h2,
.card-head p {
  margin: 0;
}

.card-head h2 {
  margin-top: 6px;
  font-size: 18px;
}

.card-head p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  padding: 0 9px;
  border-radius: 999px;
  background: #e2e8f0;
  color: #334155;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.status.active {
  background: #dcfce7;
  color: #166534;
}

.status.expired,
.status.suspended {
  background: #fee2e2;
  color: #991b1b;
}

.key-box {
  padding: 12px;
  border: 1px dashed #9fb3c8;
  border-radius: 8px;
  background: #f8fafc;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.facts div {
  padding: 10px;
  border-radius: 8px;
  background: #f8fafc;
}

.facts small,
.facts strong {
  display: block;
}

.facts small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.facts strong {
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.devices {
  display: grid;
  gap: 9px;
}

.device-title {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.empty-devices {
  padding: 10px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.device-grid {
  display: grid;
  gap: 8px;
}

.device-card {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) repeat(3, minmax(120px, 0.65fr)) auto;
  gap: 8px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.device-card strong,
.device-card small,
.device-card span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-card small,
.device-card span {
  color: var(--muted);
  font-size: 12px;
}

.device-card button {
  min-height: 34px;
}

@media (max-width: 960px) {
  .login-layout,
  .hero,
  .toolbar,
  .top-panel,
  .grid,
  .panel-title.row,
  .split,
  .facts,
  .device-card,
  .user-card {
    grid-template-columns: 1fr;
  }

  .login-hero {
    min-height: 360px;
  }

  .hero {
    display: grid;
  }

  .toolbar,
  .top-panel {
    align-items: stretch;
  }
}