:root {
  --bg: #1e2430;
  --card: #293140;
  --card-soft: #30394a;
  --text: #eef2f7;
  --text-soft: #aeb8c7;
  --accent: #82b7f4;
  --accent-text: #162131;
  --border: #465164;
  --input-bg: #202735;
  --error: #d28a78;
  --error-text: #241713;
  --focus: rgba(130, 183, 244, 0.14);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { min-height: 100%; }
body {
  font-family: "Segoe UI", system-ui, Arial, sans-serif;
  background: var(--bg); color: var(--text);
  line-height: 1.4; min-height: 100vh;
  display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.login-card {
  width: min(360px, 100%); background: var(--card);
  border: 1px solid var(--border); border-radius: 12px;
  padding: 1.8rem 1.6rem; box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}
.login-card h1 { font-size: 1.4rem; text-align: center; letter-spacing: 0.5px; }
.subtitle { font-size: 0.75rem; color: var(--text-soft); text-align: center; margin-bottom: 0.9rem; }
.info { font-size: 0.78rem; color: var(--text-soft); text-align: center; margin-bottom: 1.2rem; }
.login-card form { display: flex; flex-direction: column; gap: 0.4rem; }
.login-card label { font-size: 0.72rem; font-weight: 700; color: var(--text-soft); margin-top: 0.35rem; }
.login-card input {
  padding: 0.55rem 0.7rem; font-size: 0.9rem;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--input-bg); color: var(--text);
}
.login-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 2px var(--focus); }
.login-card input::placeholder { color: var(--text-soft); opacity: 0.7; }
.login-card button {
  margin-top: 1.1rem; padding: 0.7rem; font-size: 0.95rem; font-weight: 700;
  background: var(--accent); color: var(--accent-text);
  border: none; border-radius: 9px; cursor: pointer;
}
.login-card button:hover { filter: brightness(1.05); }
.error {
  margin-top: 0.7rem; font-size: 0.78rem; color: var(--error);
  background: var(--error-text); border-radius: 7px; padding: 0.45rem 0.65rem; text-align: center;
}
.footer-note { margin-top: 1.1rem; font-size: 0.68rem; color: var(--text-soft); text-align: center; }