*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --border: #242424;
  --text: #e8e8e8;
  --muted: #6b6b6b;
  --accent: #ffffff;
  --danger: #ef4444;
  --font: system-ui, -apple-system, 'Segoe UI', sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 400px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
}

.logo-img {
  height: 24px;
  width: auto;
  display: block;
}

h1 {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.subtitle {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 40px;
}

.field {
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

input {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

input:focus {
  border-color: #444;
}

input::placeholder {
  color: var(--muted);
}

button[type="submit"] {
  width: 100%;
  margin-top: 8px;
  padding: 12px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 6px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

button[type="submit"]:hover { opacity: 0.88; }
button[type="submit"]:disabled { opacity: 0.4; cursor: not-allowed; }

.error {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 6px;
  font-size: 13px;
  color: #f87171;
  display: none;
}

.error.visible { display: block; }

.footer-link {
  margin-top: 32px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.footer-link a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.15s;
}

.footer-link a:hover { border-color: var(--text); }