* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #0f1115;
  color: #e8e8e8;
}

header {
  background-color: #161a20;
  border-bottom: 1px solid #2a3038;
  padding: 24px 40px;
}

header h1 {
  margin: 0;
  font-size: 2rem;
}

main,
#auth-section {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

#auth-section {
  margin-top: 32px;
  padding: 24px;
  background-color: #161a20;
  border: 1px solid #2a3038;
  border-radius: 12px;
}

main {
  padding: 32px 0;
}

section {
  margin-bottom: 40px;
}

h2 {
  margin-top: 0;
  margin-bottom: 18px;
  font-size: 1.4rem;
}

form {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: end;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: #b8c0cc;
}

input,
select {
  background-color: #0f1115;
  color: #e8e8e8;
  border: 1px solid #343b46;
  border-radius: 7px;
  padding: 9px 10px;
  min-width: 180px;
}

input:focus,
select:focus {
  outline: none;
  border-color: #5b8cff;
}

button {
  border: 1px solid #3c4655;
  background-color: #20262f;
  color: #f2f2f2;
  border-radius: 7px;
  padding: 9px 15px;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    transform 0.15s ease;
}

button:hover:not(:disabled) {
  background-color: #2a3340;
  border-color: #536174;
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

#available-labs,
#user-labs,
#machine-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.lab-card {
  background-color: #161a20;
  border: 1px solid #2a3038;
  border-radius: 12px;
  padding: 20px;
  margin: 0;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.lab-card h3 {
  margin-top: 0;
  margin-bottom: 14px;
  font-size: 1.1rem;
}

.lab-card p {
  margin: 8px 0;
  color: #c9d0da;
  line-height: 1.4;
}

.lab-card label {
  margin-top: 12px;
}

.lab-card button {
  margin-top: 14px;
}

#auth-message,
#signup-message {
  color: #aab4c2;
  margin-top: 14px;
}

#logout-button {
  margin-top: 8px;
}

@media (max-width: 700px) {
  header {
    padding: 20px;
  }

  main,
  #auth-section {
    width: min(100% - 24px, 1100px);
  }

  form {
    flex-direction: column;
    align-items: stretch;
  }

  input,
  select {
    width: 100%;
  }

  button {
    width: 100%;
  }
}

.status-badge {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: capitalize;
  border: 1px solid #3c4655;
  background-color: #20262f;
  color: #d7dde6;
}

.status-pending {
  background-color: #332b17;
  border-color: #5f5127;
  color: #e7c75d;
}

.status-running {
  background-color: #173020;
  border-color: #2f6943;
  color: #7fd899;
}

.status-stopped {
  background-color: #292d34;
  border-color: #4a525f;
  color: #c2c8d0;
}

.status-failed,
.status-destroyed {
  background-color: #351b1b;
  border-color: #6a3434;
  color: #e58a8a;
}

.meta {
  color: #8994a3;
  font-size: 0.85rem;
  font-family: monospace;
  overflow-wrap: anywhere;
}

.danger-btn {
  border-color: #673838;
  background-color: #321c1c;
  color: #f0b0b0;
}

.danger-btn:hover:not(:disabled) {
  background-color: #442424;
  border-color: #8a4747;
}

.primary-btn {
  background-color: #234d8c;
  border-color: #3466ad;
  color: white;
}

.primary-btn:hover:not(:disabled) {
  background-color: #2b5da8;
  border-color: #4678bd;
}

.connection-panel {
  margin-top: 18px;
  padding: 16px;
  background-color: #0f1115;
  border: 1px solid #343b46;
  border-radius: 8px;
}

.connection-panel h4 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.connection-panel p {
  margin: 7px 0;
}

.connection-panel code {
  font-family: monospace;
}

.ssh-command {
  margin-top: 14px !important;
  padding: 10px;
  background-color: #090b0e;
  border: 1px solid #2a3038;
  border-radius: 6px;
  overflow-wrap: anywhere;
}

.connection-panel button {
  margin-right: 8px;
  margin-top: 10px;
}

.connection-note {
  margin-top: 14px;
  font-size: 0.9rem;
  opacity: 0.8;
}