:root {
  color-scheme: dark;
  --bg: #0b0f19;
  --surface: rgba(30, 41, 59, 0.78);
  --surface-soft: rgba(51, 65, 85, 0.58);
  --text: #f8fafc;
  --muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #14b8a6;
  --accent-dark: #0d9488;
  --accent-soft: rgba(20, 184, 166, 0.15);
  --error: #fb923c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100dvh;
  margin: 0;
  color: var(--text);
  background: #0b0f19;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.auth-shell {
  display: grid;
  min-height: 100dvh;
  place-items: center;
  padding: 22px;
}

.auth-panel {
  width: min(100%, 390px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.38);
}

.auth-brand {
  display: flex;
  gap: 13px;
  align-items: center;
  padding: 22px 22px 18px;
}

.auth-mark {
  position: relative;
  display: grid;
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

.auth-mark::before,
.auth-mark::after,
.auth-mark span {
  position: absolute;
  display: block;
  height: 3px;
  border-radius: 3px;
  background: #d9f5ef;
  content: "";
}

.auth-mark::before {
  width: 19px;
  transform: translateY(-7px);
}

.auth-mark span {
  width: 14px;
}

.auth-mark::after {
  width: 10px;
  transform: translateY(7px);
}

h1,
p {
  margin: 0;
}

h1 {
  font-size: 19px;
}

.auth-brand p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.auth-tabs button {
  min-height: 43px;
  border: 0;
  color: var(--muted);
  background: transparent;
}

.auth-tabs button:hover,
.auth-tabs button.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.auth-form {
  display: grid;
  gap: 15px;
  padding: 22px;
}

.auth-form label {
  display: grid;
  gap: 7px;
}

.auth-form span {
  color: var(--muted);
  font-size: 13px;
}

.auth-form input {
  width: 100%;
  height: 42px;
  padding: 0 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  color: var(--text);
  background: var(--surface-soft);
}

.auth-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

.auth-error {
  min-height: 20px;
  color: var(--error);
  font-size: 13px;
  line-height: 1.45;
}

.auth-submit {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  color: #f8fafc;
  background: var(--accent-dark);
  font-weight: 700;
}

.auth-submit:hover {
  background: var(--accent);
}

.auth-submit:disabled {
  cursor: wait;
  opacity: 0.7;
}