/* Button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: var(--ui-density-control-height);
  padding: 0.45rem 0.82rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  text-align: center;
  text-decoration: none;
  border: 1px solid var(--color-border-secondary);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.2;
  user-select: none;
}

.btn:hover {
  text-decoration: none;
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-sm);
  color: inherit;
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-brand-primary-subtle);
  border-color: var(--color-brand-primary);
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.55;
  pointer-events: none;
}

.btn-primary {
  --btn-primary-base: color-mix(in srgb, var(--color-brand-primary) 92%, #000000 8%);
  --btn-primary-hover: color-mix(in srgb, var(--color-brand-primary-hover) 94%, #000000 6%);
  background-color: var(--btn-primary-base);
  background-image: linear-gradient(
    135deg,
    color-mix(in srgb, var(--btn-primary-base) 88%, #ffffff 12%),
    color-mix(in srgb, var(--btn-primary-base) 72%, var(--btn-primary-hover) 28%)
  );
  background-repeat: no-repeat;
  background-size: 100% 100%;
  color: var(--color-text-on-brand);
  border-color: color-mix(in srgb, var(--btn-primary-hover) 72%, transparent);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--btn-primary-hover);
  background-image: linear-gradient(
    135deg,
    color-mix(in srgb, var(--btn-primary-base) 74%, #ffffff 8%),
    color-mix(in srgb, var(--btn-primary-hover) 88%, var(--btn-primary-base) 12%)
  );
  border-color: color-mix(in srgb, var(--btn-primary-hover) 84%, transparent);
  box-shadow: var(--shadow);
  color: var(--color-text-on-brand);
}

.btn-external {
  background-color: var(--color-brand-primary);
  background-image: var(--color-brand-gradient-br);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  background-position: center;
  color: var(--color-text-on-brand);
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}

.btn-external:hover {
  filter: brightness(1.04);
  box-shadow: var(--shadow);
  color: var(--color-text-on-brand);
}

.btn-external:focus-visible {
  border-color: transparent;
}

.btn-secondary {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
}

.btn-secondary:hover {
  background: var(--color-interactive-hover);
}

.btn-sm {
  min-height: var(--ui-density-control-height-sm);
  padding: 0.3rem 0.62rem;
  font-size: 0.75rem;
}

/* Button variants */
.btn-outline-primary {
  background-color: transparent;
  color: var(--color-brand-primary);
  border: 1px solid var(--color-brand-primary);
}

.btn-outline-primary:hover {
  background-color: var(--color-brand-primary-subtle);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-secondary);
}

.btn-outline:hover {
  background: var(--color-interactive-hover);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--color-interactive-hover);
  color: var(--color-text-primary);
  border-color: transparent;
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-text-on-brand);
  border: 1px solid var(--color-success);
}

.btn-success:hover {
  filter: brightness(1.05);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-text-on-brand);
  border-color: var(--color-error);
}

.btn-danger:hover {
  filter: brightness(1.06);
}

.btn-icon {
  width: var(--ui-density-control-height);
  min-width: var(--ui-density-control-height);
  padding: 0;
}

.btn.btn-sm.btn-icon {
  width: var(--ui-density-control-height-sm);
  min-width: var(--ui-density-control-height-sm);
  padding: 0;
}

.btn-icon__glyph {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.btn-icon--edit {
  background: var(--color-surface-secondary);
  color: var(--color-text-secondary);
  border-color: var(--color-border-secondary);
}

.btn-icon--edit:hover {
  background: var(--color-interactive-hover);
  color: var(--color-text-primary);
}

.btn-icon--delete {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.35);
}

.btn-icon--delete:hover {
  background: rgba(239, 68, 68, 0.16);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.45);
}

.btn-icon--utility {
  background: rgba(236, 98, 43, 0.12);
  color: var(--color-brand-primary);
  border-color: rgba(236, 98, 43, 0.35);
}

.btn-icon--utility:hover {
  background: rgba(236, 98, 43, 0.2);
  border-color: rgba(236, 98, 43, 0.45);
}

.btn-icon--score {
  background: rgba(148, 163, 184, 0.16);
  color: var(--color-text-secondary);
  border-color: rgba(148, 163, 184, 0.35);
}

.btn-icon--score:hover {
  background: rgba(148, 163, 184, 0.24);
  color: var(--color-text-primary);
  border-color: rgba(148, 163, 184, 0.5);
}

.btn-icon--score.btn-icon--score-update {
  background: rgba(14, 165, 233, 0.14);
  color: #38bdf8;
  border-color: rgba(14, 165, 233, 0.4);
}

.btn-icon--score.btn-icon--score-update:hover {
  background: rgba(14, 165, 233, 0.22);
  color: #0ea5e9;
  border-color: rgba(14, 165, 233, 0.55);
}

.btn-icon--initiative {
  background: rgba(59, 130, 246, 0.14);
  color: #60a5fa;
  border-color: rgba(59, 130, 246, 0.38);
}

.btn-icon--initiative:hover {
  background: rgba(59, 130, 246, 0.22);
  color: #3b82f6;
  border-color: rgba(59, 130, 246, 0.5);
}

/* Microsoft Sign-in Button */
.sign-in-form {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(124, 22, 245, 0.18), transparent 52%), var(--color-surface-base);
  padding: 1.25rem;
}

.sign-in-card {
  width: min(430px, 100%);
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: 1rem;
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.sign-in-logo {
  display: block;
  width: min(320px, 100%);
  height: auto;
  margin: 0;
}

.sign-in-subtitle {
  margin: 0.45rem 0 1rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.sign-in-card h2 {
  margin: 0.25rem 0 0.1rem;
  font-size: 1.1rem;
  color: var(--color-text-primary);
}

.sign-in-local-form {
  display: grid;
  gap: 0.65rem;
  margin-top: 0.8rem;
}

.sign-in-local-form label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sign-in-local-select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border-secondary);
  border-radius: 0.55rem;
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.sign-in-local-select:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-brand-primary-subtle);
}

.microsoft-sign-in-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border-secondary);
  border-radius: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  min-width: 280px;
  cursor: pointer;
  font-family: var(--font-sans);
}

.microsoft-sign-in-button:hover {
  background-color: var(--color-interactive-hover);
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
  box-shadow: var(--shadow);
}

.microsoft-sign-in-button:active {
  background-color: var(--color-interactive-active);
}

.microsoft-sign-in-button img {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.microsoft-sign-in-button span {
  font-weight: 600;
}

.sign-in-card .microsoft-sign-in-button {
  width: 100%;
}