:root {
  --bg-primary: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #263349;
  --accent: #00A0D4;
  --accent-dim: rgba(0, 160, 212, 0.15);
  --accent-green: #70D44B;
  --accent-orange: #FF4D00;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius: 12px;
  --transition: 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.container {
  width: 100%;
  max-width: 720px;
}

/* Lock Screen */
.lock-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  z-index: 300;
}

.lock-card {
  text-align: center;
  width: 90%;
  max-width: 360px;
}

.lock-card h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.lock-card > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.lock-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  margin-bottom: 0.75rem;
  transition: border-color var(--transition);
}

.lock-input:focus {
  border-color: var(--accent);
}

.lock-input.error {
  border-color: var(--accent-orange);
}

.lock-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition);
}

.lock-btn:hover {
  background: var(--accent-orange);
}

.lock-error {
  color: var(--accent-orange);
  font-size: 0.85rem;
  margin-top: 0.75rem;
  visibility: hidden;
}

.lock-error.visible {
  visibility: visible;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.header-logo {
  width: 64px;
  height: 64px;
  margin-bottom: 0.75rem;
}

.header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.25rem;
  cursor: pointer;
  text-align: center;
  color: var(--text-primary);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

.card:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-orange);
  background: var(--bg-card-hover);
}

.card:active {
  transform: scale(0.98);
}

.card:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

/* Card Icon */
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--accent);
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* Modal Backdrop */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  z-index: 100;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* Modal */
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 90%;
  max-width: 420px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  z-index: 101;
}

.modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

/* Modal Close */
.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--text-primary);
}

/* Modal Header */
.modal-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.modal-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.modal-icon svg {
  width: 22px;
  height: 22px;
}

.modal-header h2 {
  font-size: 1.2rem;
  font-weight: 600;
}

/* Modal Body */
.modal-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.credential-row label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.credential-field {
  display: flex;
  gap: 0.5rem;
}

.credential-field input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  color: var(--text-primary);
  font-family: "SF Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.9rem;
  outline: none;
}

.credential-field input:focus {
  border-color: var(--accent);
}

/* Copy Button */
.copy-btn {
  background: var(--accent-dim);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--accent);
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition);
  font-family: inherit;
  min-width: 72px;
}

.copy-btn:hover {
  background: rgba(0, 160, 212, 0.25);
  border-color: var(--accent);
}

.copy-btn.copied {
  background: rgba(112, 212, 75, 0.2);
  color: var(--accent-green);
  border-color: var(--accent-green);
}

/* Open Grafana Button */
.open-grafana-btn {
  display: block;
  width: 100%;
  padding: 0.75rem;
  margin-top: 0.5rem;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition);
  font-family: inherit;
}

.open-grafana-btn:hover {
  background: var(--accent-orange);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--text-primary);
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-size: 0.85rem;
  box-shadow: var(--shadow);
  animation: toast-in 0.3s ease forwards, toast-out 0.3s ease 1.8s forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(10px);
  }
}

/* Responsive */
@media (max-width: 600px) {
  body {
    padding: 1.25rem;
    align-items: flex-start;
    padding-top: 2rem;
  }

  .header h1 {
    font-size: 1.4rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 1.25rem 1rem;
  }

  .modal {
    padding: 1.5rem;
  }
}