:root {
  color-scheme: light;
  --brand: #da291c;
  --brand-dark: #b51f15;
  --bg: #f4f2ee;
  --panel: #fffdf9;
  --ink: #17191d;
  --ink-2: #5b5f67;
  --line: #ded9cf;
  --shadow: 0 24px 70px rgba(33, 27, 20, .14);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

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

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 15% 15%, rgba(218, 41, 28, .09), transparent 30rem),
    radial-gradient(circle at 85% 80%, rgba(23, 25, 29, .06), transparent 26rem),
    var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

.login-shell { width: 100%; max-width: 460px; }

.login-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: clamp(28px, 6vw, 44px);
  box-shadow: var(--shadow);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
}

.login-brand__logo {
  display: block;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  filter: drop-shadow(0 6px 14px rgba(218, 41, 28, .24));
}

.login-brand strong {
  display: block;
  font-size: 18px;
  line-height: 1.15;
  letter-spacing: -.04em;
}

.login-brand strong em {
  color: var(--brand);
  font-style: normal;
}

.login-brand small {
  display: block;
  color: var(--ink-2);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.login-copy { margin-bottom: 24px; }

.login-eyebrow {
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.login-copy h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 6vw, 36px);
  line-height: 1.05;
  letter-spacing: -.035em;
}

.login-copy p:last-child {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.65;
}

.login-copy strong { color: var(--ink); }

.login-error {
  margin: 0 0 18px;
  padding: 12px 14px;
  border: 1px solid #e7b4ad;
  border-radius: 12px;
  background: #fff2f0;
  color: #8a1f14;
  font-size: 13px;
  line-height: 1.5;
}

.login-error.is-info {
  border-color: #b9cfe4;
  background: #f1f7fd;
  color: #245479;
}

.login-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 50px;
  border: 1px solid #c9c5bd;
  border-radius: 12px;
  background: #fff;
  color: #1f1f1f;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}

.login-google:hover {
  border-color: #9e998f;
  box-shadow: 0 8px 20px rgba(33, 27, 20, .08);
}

.login-google:focus-visible {
  outline: 3px solid rgba(218, 41, 28, .35);
  outline-offset: 3px;
}

.login-google:active { transform: translateY(1px); }

.login-note {
  margin: 20px 0 0;
  color: var(--ink-2);
  font-size: 12px;
  line-height: 1.65;
}

.login-foot {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: #8b877f;
  font-size: 11px;
  line-height: 1.5;
}

.login-foot a { color: var(--brand-dark); text-underline-offset: 2px; }

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0d0f13;
    --panel: #15181e;
    --ink: #eef0f4;
    --ink-2: #a4a9b3;
    --line: #2a2e36;
    --shadow: 0 24px 70px rgba(0, 0, 0, .38);
  }

  .login-google {
    border-color: #3a3f49;
    background: #1b1f26;
    color: #eef0f4;
  }

  .login-google:hover { border-color: #59606c; }

  .login-error {
    border-color: #6f2b24;
    background: #2a1614;
    color: #ffb4a9;
  }

  .login-error.is-info {
    border-color: #2f5573;
    background: #11202d;
    color: #a9d2f2;
  }
}