/**
 * Jhinai Media — Design System layer
 * Tokens extensions, shared components, a11y, responsive helpers.
 * Loaded after style.css so shared UI stays consistent.
 */

/* ── Extended tokens (builds on style.css :root) ── */
:root {
  --ns-focus-ring: 0 0 0 3px rgba(200, 16, 46, 0.35);
  --ns-focus-color: var(--ns-primary);
  --ns-surface: var(--ns-bg-primary);
  --ns-surface-muted: var(--ns-bg-secondary);
  --ns-danger: #b91c1c;
  --ns-success: #15803d;
  --ns-warning: #b45309;
  --ns-section-gap: 1.25rem;
  --ns-section-gap-between: 0.75rem;
  --ns-container-pad: var(--ns-space-6);
  --ns-btn-radius: var(--ns-radius);
  --ns-card-radius: var(--ns-radius);
  --ns-control-height: 2.5rem;
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── Focus visibility (keyboard) ── */
:focus {
  outline: none;
}
:focus-visible {
  outline: 2px solid var(--ns-focus-color);
  outline-offset: 2px;
  box-shadow: var(--ns-focus-ring);
}
.ns-btn:focus-visible,
.ns-input:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--ns-focus-color);
  outline-offset: 2px;
}

/* ── Skip link ── */
.ns-skip-link {
  position: absolute;
  left: var(--ns-space-4);
  top: 0;
  z-index: 100000;
  padding: var(--ns-space-2) var(--ns-space-4);
  background: var(--ns-primary);
  color: var(--ns-white);
  font-family: var(--ns-font-ui);
  font-size: var(--ns-text-sm);
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 var(--ns-radius) var(--ns-radius);
  transform: translateY(-120%);
  transition: transform var(--ns-transition-fast);
}
.ns-skip-link:focus,
.ns-skip-link:focus-visible {
  transform: translateY(0);
  color: var(--ns-white);
  outline: 2px solid var(--ns-white);
  outline-offset: 2px;
}

/* Screen-reader only — reveal on focus when paired with .ns-skip-link */
.ns-sr-only:not(:focus):not(:focus-visible) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ── Container ── */
.ns-container {
  max-width: var(--ns-site-width);
  margin-inline: auto;
  padding-inline: var(--ns-container-pad);
  width: 100%;
  box-sizing: border-box;
}
@media (max-width: 640px) {
  :root { --ns-container-pad: var(--ns-space-4); }
}

/* ── Buttons (standardized) ── */
.ns-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ns-space-2);
  min-height: var(--ns-control-height);
  padding: 0.5rem 1.1rem;
  font-family: var(--ns-font-ui);
  font-size: var(--ns-text-sm);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
  border: 1.5px solid transparent;
  border-radius: var(--ns-btn-radius);
  cursor: pointer;
  transition:
    background-color var(--ns-transition-fast),
    color var(--ns-transition-fast),
    border-color var(--ns-transition-fast),
    box-shadow var(--ns-transition-fast),
    transform var(--ns-transition-fast);
}
.ns-btn:disabled,
.ns-btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}
.ns-btn--primary {
  background: var(--ns-primary);
  color: var(--ns-white);
  border-color: var(--ns-primary);
}
.ns-btn--primary:hover:not(:disabled) {
  background: var(--ns-primary-dark);
  border-color: var(--ns-primary-dark);
  color: var(--ns-white);
}
.ns-btn--outline {
  background: transparent;
  color: var(--ns-primary);
  border-color: var(--ns-primary);
}
.ns-btn--outline:hover:not(:disabled) {
  background: var(--ns-primary);
  color: var(--ns-white);
}
.ns-btn--ghost {
  background: transparent;
  color: var(--ns-text-secondary);
  border-color: var(--ns-border);
}
.ns-btn--ghost:hover:not(:disabled) {
  background: var(--ns-gray-100);
  color: var(--ns-text-primary);
}
.ns-btn--sm {
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  font-size: var(--ns-text-xs);
}
.ns-btn--lg {
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  font-size: var(--ns-text-base);
}
@media (prefers-reduced-motion: no-preference) {
  .ns-btn--primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.28);
  }
}

/* ── Form controls ── */
.ns-input,
.ns-select,
.ns-textarea {
  width: 100%;
  min-height: var(--ns-control-height);
  padding: 0.5rem 0.85rem;
  font-family: var(--ns-font-ui);
  font-size: var(--ns-text-sm);
  color: var(--ns-text-primary);
  background: var(--ns-surface);
  border: 1.5px solid var(--ns-border);
  border-radius: var(--ns-radius);
  box-sizing: border-box;
  transition: border-color var(--ns-transition-fast), box-shadow var(--ns-transition-fast);
}
.ns-textarea { min-height: 6rem; resize: vertical; }
.ns-input:focus-visible,
.ns-select:focus-visible,
.ns-textarea:focus-visible {
  border-color: var(--ns-primary);
  box-shadow: var(--ns-focus-ring);
  outline: none;
}
.ns-input::placeholder {
  color: var(--ns-text-muted);
}

/* ── Cards (shared foundation) ── */
.ns-card {
  display: flex;
  flex-direction: column;
  background: var(--ns-surface);
  border-radius: var(--ns-card-radius);
  overflow: hidden;
  height: 100%;
  transition: box-shadow var(--ns-transition-fast), transform var(--ns-transition-fast);
}
.ns-card__title {
  font-family: var(--ns-font-heading);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ns-text-primary);
}
.ns-card__title a {
  color: inherit;
  text-decoration: none;
}
.ns-card__title a:hover,
.ns-card__title a:focus-visible {
  color: var(--ns-primary);
}
.ns-card__excerpt {
  font-family: var(--ns-font-body);
  font-size: var(--ns-text-sm);
  color: var(--ns-text-secondary);
  line-height: 1.55;
}
.ns-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ns-space-2);
  font-family: var(--ns-font-ui);
  font-size: var(--ns-text-xs);
  color: var(--ns-text-muted);
}

/* ── Badge ── */
.ns-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--ns-font-ui);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: var(--ns-radius-sm);
  line-height: 1.4;
  background: var(--ns-gray-100);
  color: var(--ns-text-secondary);
}

/* ── Stack / cluster utilities ── */
.ns-stack {
  display: flex;
  flex-direction: column;
  gap: var(--ns-space-4);
}
.ns-stack--sm { gap: var(--ns-space-2); }
.ns-stack--lg { gap: var(--ns-space-6); }
.ns-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ns-space-3);
}

/* ── Responsive grid helpers ── */
.ns-grid {
  display: grid;
  gap: var(--ns-space-6);
  align-items: stretch;
}
@media (max-width: 900px) {
  .ns-grid--3,
  .ns-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 600px) {
  .ns-grid--2,
  .ns-grid--3,
  .ns-grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ── Media defaults ── */
img,
video,
svg {
  max-width: 100%;
  height: auto;
}
img {
  display: block;
}

/* ── Text selection ── */
::selection {
  background: rgba(200, 16, 46, 0.18);
  color: var(--ns-text-primary);
}

/* ── High contrast support ── */
@media (prefers-contrast: more) {
  :root {
    --ns-border: #666666;
    --ns-text-muted: #444444;
  }
  .ns-btn {
    border-width: 2px;
  }
}