/**
 * ============================================
 * CONTACT HUB STYLES
 * ============================================
 * Minimal, typography-first design
 * Light + dark mode via prefers-color-scheme
 */

/* ─────────────────────────────────────────
   CSS CUSTOM PROPERTIES
   ───────────────────────────────────────── */
:root {
  /* Colors - Light Mode */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-text: #1a1a1a;
  --color-text-secondary: #666666;
  --color-text-tertiary: #999999;
  --color-border: #e5e5e5;
  --color-border-hover: #cccccc;
  --color-accent: #0066cc;
  --color-accent-hover: #0052a3;
  --color-accent-bg: rgba(0, 102, 204, 0.08);

  /* Typography */
  --font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Layout */
  --container-max: 480px;
  --border-radius: 8px;
  --border-radius-sm: 4px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #111111;
    --color-bg-secondary: #1a1a1a;
    --color-text: #f0f0f0;
    --color-text-secondary: #a0a0a0;
    --color-text-tertiary: #666666;
    --color-border: #333333;
    --color-border-hover: #444444;
    --color-accent: #66b3ff;
    --color-accent-hover: #99ccff;
    --color-accent-bg: rgba(102, 179, 255, 0.1);
  }
}

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

/* ─────────────────────────────────────────
   RESET & BASE
   ───────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  padding: var(--space-lg);
}

/* ─────────────────────────────────────────
   UTILITIES
   ───────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ─────────────────────────────────────────
   CONTAINER
   ───────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* ─────────────────────────────────────────
   HEADER
   ───────────────────────────────────────── */
.header {
  text-align: center;
  padding-top: var(--space-xl);
}

.name {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.tagline {
  font-size: 1rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.tagline:empty {
  display: none;
}

/* ─────────────────────────────────────────
   LOCAL CONTEXT
   ───────────────────────────────────────── */
.local-context {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.local-context:empty,
.local-context[hidden] {
  display: none;
}

.local-time {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.local-weather {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.weather-toggle {
  font-family: inherit;
  font-size: 0.8125rem;
  color: var(--color-accent);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.weather-toggle:hover {
  border-color: var(--color-accent);
}

.weather-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.weather-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.weather-display[hidden] {
  display: none;
}

.weather-temp {
  font-weight: 500;
}

.weather-note {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

/* ─────────────────────────────────────────
   SEARCH
   ───────────────────────────────────────── */
.search-container {
  position: relative;
}

.search-container[hidden] {
  display: none;
}

.search-input {
  width: 100%;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-sm) var(--space-md);
  padding-right: 2.5rem;
  transition: border-color var(--transition-fast);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-clear {
  position: absolute;
  right: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  font-family: inherit;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-text-tertiary);
  background: none;
  border: none;
  padding: var(--space-xs);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.search-clear:hover {
  color: var(--color-text-secondary);
}

.search-clear[hidden] {
  display: none;
}

/* ─────────────────────────────────────────
   CONTACT GROUPS
   ───────────────────────────────────────── */
.contact-group {
  margin-bottom: var(--space-lg);
}

.contact-group:last-child {
  margin-bottom: 0;
}

.group-heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
  padding-left: var(--space-xs);
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ─────────────────────────────────────────
   CONTACT CARD
   ───────────────────────────────────────── */
.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast);
}

.contact-card:hover {
  border-color: var(--color-border-hover);
}

.contact-card.low-priority {
  opacity: 0.85;
}

.contact-card[hidden] {
  display: none;
}

/* Icon */
.card-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  width: 2rem;
  text-align: center;
}

/* Info */
.card-info {
  flex: 1;
  min-width: 0;
}

.card-label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
}

.card-value {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-note {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}

/* Actions */
.card-actions {
  flex-shrink: 0;
  display: flex;
  gap: var(--space-xs);
}

.card-btn {
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius-sm);
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast),
    color var(--transition-fast);
}

.card-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  color: #ffffff;
  background: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

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

.btn-secondary:hover {
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

/* ─────────────────────────────────────────
   SHOW MORE
   ───────────────────────────────────────── */
.show-more-container {
  text-align: center;
}

.show-more-container[hidden] {
  display: none;
}

.show-more-btn {
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: border-color var(--transition-fast);
}

.show-more-btn:hover {
  border-color: var(--color-border-hover);
}

.show-more-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.show-more-btn[aria-expanded="true"] .show-more-icon {
  transform: rotate(180deg);
}

.show-more-icon {
  transition: transform var(--transition-normal);
}

/* ─────────────────────────────────────────
   QR CODE
   ───────────────────────────────────────── */
.qr-section {
  text-align: center;
}

.qr-section[hidden] {
  display: none;
}

.qr-details {
  display: inline-block;
}

.qr-summary {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-sm);
  list-style: none;
  transition: color var(--transition-fast);
}

.qr-summary::-webkit-details-marker {
  display: none;
}

.qr-summary:hover {
  color: var(--color-text-secondary);
}

.qr-summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.qr-content {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

#qr-canvas {
  border-radius: var(--border-radius-sm);
}

.qr-hint {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

/* ─────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────── */
.footer {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.privacy-note {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

/* ─────────────────────────────────────────
   TOAST
   ───────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.875rem;
  color: #ffffff;
  background: var(--color-text);
  border-radius: var(--border-radius);
  padding: var(--space-sm) var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.toast.visible {
  opacity: 1;
}

.toast[hidden] {
  display: none;
}

/* ─────────────────────────────────────────
   EMPTY STATE
   ───────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-text-tertiary);
  font-size: 0.9375rem;
}

/* ─────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────── */
@media (max-width: 480px) {
  body {
    padding: var(--space-md);
  }

  .name {
    font-size: 1.5rem;
  }

  .contact-card {
    flex-wrap: wrap;
  }

  .card-actions {
    width: 100%;
    margin-top: var(--space-sm);
  }

  .card-btn {
    flex: 1;
    text-align: center;
  }
}