:root {
  --bg: #f4f7f8;
  --surface: #ffffff;
  --ink: #18202f;
  --muted: #667085;
  --line: #dfe7ea;
  --teal: #079a9a;
  --teal-dark: #087a7a;
  --coral: #f04444;
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(7, 154, 154, 0.08), transparent 320px),
    var(--bg);
  color: var(--ink);
}

.auth-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 28px;
}

.auth-panel {
  width: min(100%, 440px);
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(16, 24, 40, 0.12);
}

.brand {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--ink);
  font-size: 30px;
  font-weight: 850;
  text-decoration: none;
}

.brand span {
  color: var(--teal);
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.15;
}

p {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.5;
}

form {
  display: grid;
  gap: 15px;
}

label {
  display: grid;
  gap: 7px;
  color: #344054;
  font-size: 13px;
  font-weight: 800;
}

input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

input:focus {
  border-color: var(--teal);
  outline: 3px solid rgba(7, 154, 154, 0.14);
}

button {
  height: 44px;
  border: 0;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #12b8b2, var(--teal));
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 850;
}

button:hover {
  background: linear-gradient(180deg, #0ea7a1, var(--teal-dark));
}

.alert {
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid rgba(240, 68, 68, 0.32);
  border-radius: var(--radius);
  background: rgba(240, 68, 68, 0.08);
  color: #b42318;
  font-size: 13px;
  line-height: 1.45;
}

.switch {
  margin: 20px 0 0;
  text-align: center;
}

.switch a {
  color: var(--teal-dark);
  font-weight: 850;
}