:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #20262e;
  --muted: #69727d;
  --line: #dfe3e8;
  --coral: #e45d4f;
  --coral-dark: #bf4439;
  --red: #b83d45;
  --red-soft: #ffedef;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
}

button,
input {
  font: inherit;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(228, 93, 79, 0.2);
  outline-offset: 2px;
}

.auth-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.auth-panel {
  width: min(100%, 430px);
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 45px rgba(31, 39, 48, 0.1);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: inline-grid;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 8px;
  background: var(--coral);
  color: #ffffff;
  font-size: 25px;
  font-weight: 900;
  line-height: 1;
}

.eyebrow,
.mode-label {
  margin: 0 0 3px;
  color: var(--coral-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: 0;
}

.auth-heading {
  margin: 27px 0 20px;
}

h2 {
  margin-bottom: 0;
  font-size: 20px;
  letter-spacing: 0;
}

form,
label {
  display: grid;
}

form {
  gap: 17px;
}

label {
  gap: 7px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
}

input {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #cbd1d8;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
}

input:focus {
  border-color: var(--coral);
}

.primary-button {
  min-height: 44px;
  margin-top: 3px;
  padding: 0 17px;
  border: 0;
  border-radius: 8px;
  background: var(--coral);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0;
  box-shadow: 0 5px 14px rgba(228, 93, 79, 0.2);
}

.primary-button:hover {
  background: var(--coral-dark);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.form-message {
  margin: 0;
  padding: 11px 12px;
  border-radius: 8px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 13px;
  line-height: 1.5;
}

@media (max-width: 480px) {
  .auth-shell {
    align-items: start;
    padding: 12px;
  }

  .auth-panel {
    margin-top: 7vh;
    padding: 24px 20px;
  }

  .brand-mark {
    flex-basis: 42px;
    width: 42px;
    height: 42px;
    font-size: 22px;
  }

  h1 {
    font-size: 21px;
  }
}