:root {
  color-scheme: light;
  --forest: #172d2b;
  --forest-soft: #23423f;
  --paper: #fbfaf6;
  --line: #d9ded9;
  --muted: #61736f;
  --accent: #e9734c;
  --accent-dark: #c65334;
  --danger: #b9462d;
}

* {
  box-sizing: border-box;
}

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

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(23, 45, 43, 0.92), rgba(35, 66, 63, 0.84)),
    radial-gradient(circle at top left, rgba(100, 214, 176, 0.18), transparent 38%),
    var(--forest);
}

.login-panel {
  width: min(100%, 420px);
  padding: 34px;
  background: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 8px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
}

.brand-mark {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  background: #d5f5e9;
  color: var(--forest);
  border-radius: 8px 8px 8px 3px;
}

.brand-mark svg {
  width: 30px;
  height: 30px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  font-weight: 400;
}

.copy {
  margin: 10px 0 22px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

form {
  display: grid;
  gap: 10px;
}

label {
  font-size: 0.78rem;
  font-weight: 750;
}

input {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--forest);
  font: inherit;
}

input:focus {
  outline: 3px solid rgba(233, 115, 76, 0.2);
  border-color: var(--accent);
}

.field-error {
  min-height: 20px;
  margin: 2px 0 0;
  color: var(--danger);
  font-size: 0.78rem;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  background: var(--accent-dark);
}

button:disabled {
  cursor: wait;
  opacity: 0.68;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #101918;
    --line: rgba(220, 240, 236, 0.16);
    --muted: #a6b8b3;
    --danger: #ff9b7e;
  }

  body {
    background: #0b1212;
    color: #e8f0ec;
  }

  .login-shell {
    background:
      linear-gradient(135deg, rgba(7, 16, 15, 0.94), rgba(13, 33, 31, 0.9)),
      radial-gradient(circle at top left, rgba(100, 214, 176, 0.16), transparent 38%),
      #0b1212;
  }

  .login-panel {
    background: var(--paper);
    border-color: rgba(220, 240, 236, 0.14);
    box-shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
  }

  .brand-mark {
    background: #15342e;
    color: #a7e8d2;
  }

  .eyebrow {
    color: var(--accent);
  }

  input {
    background: #1a2826;
    color: #e8f0ec;
    border-color: var(--line);
  }

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