/**
 * Button Component Styles - Heiwa Edition
 * Pill-shaped buttons with teal accent and softer shadows
 */

/* Button Variables - uses consolidated theme tokens */
:root {
  /* Primary Button - uses Heiwa theme tokens */
  --btn-primary-bg: var(--heiwa-primary, #00bbb3);
  --btn-primary-text: #ffffff;
  --btn-primary-hover: var(--heiwa-primary-hover, #008270);
  --btn-primary-focus: var(--heiwa-focus-ring, 0 0 0 3px rgba(0, 187, 179, 0.15));

  /* Secondary Button */
  --btn-secondary-bg: var(--heiwa-secondary, #1a1a1a);
  --btn-secondary-text: #ffffff;
  --btn-secondary-hover: var(--heiwa-secondary-hover, #333333);

  /* Outline Button */
  --btn-outline-border: var(--border-color, #d1d5db);
  --btn-outline-text: var(--text-secondary, #374151);
  --btn-outline-hover: var(--bg-muted, #f9fafb);

  /* Button Properties - Heiwa: Pill-shaped */
  --btn-border-radius: var(--heiwa-radius-pill, 9999px);
  --btn-font-weight: 600;
  --btn-font-size: var(--font-size-sm, 0.875rem);
  --btn-transition: all var(--transition-normal, 0.2s ease);
}

/* Base Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--btn-border-radius);
  cursor: pointer;
  transition: var(--btn-transition);
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.btn:focus {
  outline: none;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--heiwa-focus-ring-strong, 0 0 0 4px rgba(0, 187, 179, 0.25));
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary Button - Heiwa Teal */
.btn--primary,
.btn-primary {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border-color: var(--btn-primary-bg);
}

.btn--primary:hover:not(:disabled),
.btn-primary:hover:not(:disabled) {
  background-color: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 187, 179, 0.35);
}

.btn--primary:active,
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 187, 179, 0.25);
}

/* Secondary Button */
.btn--secondary,
.btn-secondary {
  background-color: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
  border-color: var(--btn-secondary-bg);
}

.btn--secondary:hover:not(:disabled),
.btn-secondary:hover:not(:disabled) {
  background-color: var(--btn-secondary-hover);
  border-color: var(--btn-secondary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

/* Outline Button */
.btn--outline,
.btn-outline {
  background-color: transparent;
  color: var(--btn-outline-text);
  border-color: var(--btn-outline-border);
}

.btn--outline:hover:not(:disabled),
.btn-outline:hover:not(:disabled) {
  background-color: var(--btn-outline-hover);
  border-color: var(--heiwa-primary, #00bbb3);
  color: var(--heiwa-primary, #00bbb3);
  transform: translateY(-2px);
  box-shadow: var(--heiwa-shadow-sm, 0 4px 12px rgba(0, 0, 0, 0.08));
}

/* Button Sizes - with pill shape maintained */
.btn--sm,
.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.75rem;
  min-height: 2rem;
}

.btn--md,
.btn-md {
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  min-height: 2.5rem;
}

.btn--lg,
.btn-lg {
  padding: 0.875rem 2rem;
  font-size: 1rem;
  min-height: 3rem;
}

.btn--xl,
.btn-xl {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  min-height: 3.5rem;
}

/* Full Width */
.btn--full {
  width: 100%;
}

/* Loading State */
.btn--loading,
.btn-loading {
  position: relative;
}

.btn-loading .btn-spinner {
  display: block !important;
}

.btn-loading .btn-text {
  opacity: 0.7;
}

/* Spinner Animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Responsive Design */
@media (max-width: 640px) {
  .btn {
    min-height: 2.75rem;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .btn--sm,
  .btn-sm {
    min-height: 2.5rem;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .btn {
    border-width: 3px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }

  .btn:hover {
    transform: none;
  }

  .animate-spin {
    animation: none;
  }
}

/* Print Styles */
@media print {
  .btn {
    background: transparent !important;
    color: black !important;
    border: 1px solid black !important;
    box-shadow: none !important;
  }
}

/* ===== Dark Mode ===== */
html.dark-mode {
  --btn-primary-bg: #00bbb3;
  --btn-primary-text: #ffffff;
  --btn-primary-hover: #008270;
  --btn-secondary-bg: #242b33;
  --btn-secondary-text: #f5f5f5;
  --btn-secondary-hover: #2d3640;
  --btn-outline-border: #2d3640;
  --btn-outline-text: #a8b2bd;
  --btn-outline-hover: #242b33;
}