:root {
  --background: hsl(220 20% 18%);
  --foreground: hsl(220 15% 95%);
  --card: hsl(220 20% 22%);
  --card-foreground: hsl(220 15% 90%);
  --primary: hsl(220 80% 70%);
  --primary-foreground: hsl(0 0% 100%);
}

/* Body layout */
body.tekmark-theme {
  background-color: var(--background);
  color: var(--foreground);
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  width: 100%;
  margin: 0;
}

/* Login card */
.login-card {
  background-color: var(--card);
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  width: 90%;
  max-width: 400px;
  overflow: hidden;
  text-align: center;
  margin: 0 auto;
  border: 2px solid var(--primary);
}


.login-header {
  background-color: var(--primary);
  color: var(--primary-foreground);
  padding: 0.3rem;
  font-size: 1rem;
  font-weight: bold;
  text-align: center;
}

.login-body {
  padding: 1.5rem;
}

@media (max-width: 400px) {
  .login-body {
    padding: 1rem;
  }
}


/* GitHub button */
.github-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background-color: #000;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  width: 100%;
  transition: background-color 0.2s ease;
  box-sizing: border-box;
}

.github-btn:hover {
  background-color: #1b1f23;
}

.github-icon {
  flex-shrink: 0;
}

.tekhmark-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tekhmark-title-t {
  padding: 0.25rem;
  font-size: 4.5rem;
  font-weight: 500;
  color: var(--primary);
}

.tekhmark-title-rest {
  margin-top: 0.5rem;
  margin-left: -1.2rem;
  font-size: 3rem;
  color: var(--foreground);
}