* {
  box-sizing: border-box;
}

:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --line: #d9e2ef;
  --primary: #124a7c;
  --primary-dark: #0c3559;
  --soft: #eaf2fb;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0c3559, #124a7c 55%, #eaf2fb);
}

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

.login-card {
  width: min(100%, 460px);
  background: var(--panel);
  border-radius: 22px;
  padding: 32px;
  box-shadow: 0 24px 80px rgba(0,0,0,.18);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: white;
  font-weight: 800;
}

.brand h1 {
  margin: 0;
  font-size: 24px;
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  font-weight: 700;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  background: white;
}

button, .secondary {
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
}

button {
  background: var(--primary);
  color: white;
}

.secondary {
  background: var(--soft);
  color: var(--primary);
}

.error-message {
  margin: 0;
  color: #b42318;
  font-weight: 700;
}

.app.no-sidebar {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-bottom: 24px;
}

.topbar h1 {
  margin: 0 0 6px;
}

.topbar p {
  margin: 0;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
}

@media (max-width: 560px) {
  .login-card {
    padding: 22px;
  }

  .app.no-sidebar {
    padding: 16px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
}