/* =====================================================================================
 * faq-widget.css — floating FAQ widget (FR-FAQ-3). Self-contained; uses the prototype's
 * design tokens from styles.css (--primary-*, --radius-*, --shadow-*, --spacing-*).
 * ===================================================================================== */

.sb-faq {
  position: fixed;
  right: var(--spacing-md, 2rem);
  bottom: var(--spacing-md, 2rem);
  /* Intentional stacking scale (see styles.css floating layers): sidebar-toggle
     999, header 1000, back-to-top 1005, FAQ pill 1010 — the pill sits above the
     back-to-top so the two right-edge widgets never tie at 1000. */
  z-index: 1010;
  font-family: var(--font-main, sans-serif);
}

/* -- floating toggle button -- */
.sb-faq__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius-xl, 24px);
  background: linear-gradient(135deg, var(--primary-purple, #6b5b95), var(--primary-blue, #4a90e2));
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.15));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sb-faq__toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg, 0 8px 24px rgba(0, 0, 0, 0.2));
}

.sb-faq__toggle:focus-visible {
  outline: 3px solid var(--accent-blue, #5ba3e8);
  outline-offset: 2px;
}

.sb-faq__toggle-icon {
  font-size: 1.2rem;
  line-height: 1;
}

/* Hide the toggle while the panel is open (the panel has its own close control). */
.sb-faq--open .sb-faq__toggle {
  display: none;
}

/* -- panel -- */
.sb-faq__panel {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 360px;
  max-width: calc(100vw - 2 * var(--spacing-sm, 1rem));
  max-height: min(560px, calc(100vh - 2 * var(--spacing-md, 2rem)));
  display: flex;
  flex-direction: column;
  background: var(--white, #fff);
  border-radius: var(--radius-md, 12px);
  box-shadow: var(--shadow-lg, 0 8px 24px rgba(0, 0, 0, 0.2));
  overflow: hidden;
}

.sb-faq__panel[hidden] {
  display: none;
}

.sb-faq__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: linear-gradient(135deg, var(--primary-purple, #6b5b95), var(--primary-blue, #4a90e2));
  color: #fff;
}

.sb-faq__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.sb-faq__close {
  border: none;
  background: transparent;
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.sb-faq__close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.sb-faq__search {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color, #e0e6ed);
}

.sb-faq__search-input {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid var(--border-color, #e0e6ed);
  border-radius: var(--radius-sm, 8px);
  font-size: 0.95rem;
  font-family: inherit;
  box-sizing: border-box;
}

.sb-faq__search-input:focus {
  outline: none;
  border-color: var(--primary-blue, #4a90e2);
}

.sb-faq__categories {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 16px;
}

.sb-faq__categories:empty {
  display: none;
}

.sb-faq__cat {
  border: 1px solid var(--border-color, #e0e6ed);
  background: var(--light-bg, #f5f7fa);
  color: var(--text-dark, #2c3e50);
  border-radius: var(--radius-xl, 24px);
  padding: 5px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sb-faq__cat:hover {
  border-color: var(--primary-blue, #4a90e2);
}

.sb-faq__cat.is-active {
  background: var(--primary-blue, #4a90e2);
  border-color: var(--primary-blue, #4a90e2);
  color: #fff;
}

.sb-faq__body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 8px 16px 16px;
}

/* -- accordion items -- */
.sb-faq__item {
  border-bottom: 1px solid var(--border-color, #e0e6ed);
}

.sb-faq__q {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 14px 28px 14px 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark, #2c3e50);
  cursor: pointer;
  position: relative;
  font-family: inherit;
}

.sb-faq__q::after {
  content: '+';
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--primary-blue, #4a90e2);
}

.sb-faq__q[aria-expanded='true']::after {
  content: '–';
}

.sb-faq__q:hover {
  color: var(--primary-blue, #4a90e2);
}

.sb-faq__q:focus-visible {
  outline: 2px solid var(--primary-blue, #4a90e2);
  outline-offset: 2px;
}

.sb-faq__a {
  padding: 0 0 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-light, #6c757d);
  white-space: pre-wrap;
}

.sb-faq__a[hidden] {
  display: none;
}

/* -- messages / states -- */
.sb-faq__msg {
  padding: 16px 4px;
  font-size: 0.92rem;
  color: var(--text-light, #6c757d);
}

.sb-faq__msg--no-match {
  color: var(--text-dark, #2c3e50);
  font-weight: 500;
}

.sb-faq__msg--error {
  color: #721c24;
}

.sb-faq__retry {
  border: 1px solid var(--primary-blue, #4a90e2);
  background: var(--white, #fff);
  color: var(--primary-blue, #4a90e2);
  border-radius: var(--radius-sm, 8px);
  padding: 8px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  font-family: inherit;
}

.sb-faq__retry:hover {
  background: var(--primary-blue, #4a90e2);
  color: #fff;
}

@media (max-width: 480px) {
  .sb-faq {
    right: var(--spacing-sm, 1rem);
    bottom: var(--spacing-sm, 1rem);
  }
  .sb-faq__panel {
    width: calc(100vw - 2 * var(--spacing-sm, 1rem));
  }
}