/* ==========================================================================
   Components - Buttons, Cards, Badges, Accordion, TOC, etc.
   kakuyasu-hp Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-8);
  padding: var(--sp-12) var(--sp-24);
  font-size: var(--fs-base);
  font-weight: 700;
  font-family: var(--font-base);
  line-height: 1.4;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

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

/* Button icon */
.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Primary (Navy) */
a.btn--primary,
.btn--primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

a.btn--primary:hover,
.btn--primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #ffffff;
}

/* Accent (Orange) */
a.btn--accent,
.btn--accent {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

a.btn--accent:hover,
.btn--accent:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(230, 126, 34, 0.35);
}

/* Outline White */
a.btn--outline-white,
.btn--outline-white {
  background-color: transparent;
  color: #ffffff;
  border-color: var(--color-white);
}

a.btn--outline-white:hover,
.btn--outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

/* White */
a.btn--white,
.btn--white {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

a.btn--white:hover,
.btn--white:hover {
  background-color: var(--color-bg-gray);
  border-color: var(--color-bg-gray);
  color: var(--color-primary);
}

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

.btn--outline:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Sizes */
.btn--sm {
  padding: var(--sp-8) var(--sp-16);
  font-size: var(--fs-sm);
  gap: var(--sp-4);
}

.btn--sm .btn__icon {
  width: 14px;
  height: 14px;
}

.btn--lg {
  padding: var(--sp-16) var(--sp-32);
  font-size: var(--fs-md);
  gap: var(--sp-12);
}

.btn--lg .btn__icon {
  width: 22px;
  height: 22px;
}

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

/* --------------------------------------------------------------------------
   Card
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   Badge
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--sp-4) var(--sp-12);
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: var(--fs-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  line-height: 1.4;
  white-space: nowrap;
}

.badge--primary {
  background-color: var(--color-primary);
}

.badge--success {
  background-color: var(--color-success);
}

.badge--outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Star Rating
   -------------------------------------------------------------------------- */
.star-rating {
  display: flex;
  align-items: center;
  gap: 2px;
  color: var(--color-gold);
}

.star-rating__star {
  width: 18px;
  height: 18px;
}

.star-rating--sm .star-rating__star {
  width: 14px;
  height: 14px;
}

.star-rating--lg .star-rating__star {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   Accordion
   -------------------------------------------------------------------------- */
.accordion__item {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}

.accordion__item:last-child {
  border-bottom: none;
}

.accordion__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--sp-24) 0;
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  background: none;
  border: none;
  gap: var(--sp-16);
  line-height: 1.6;
  transition: color var(--transition-fast);
}

@media (min-width: 768px) {
  .accordion__question {
    font-size: var(--fs-md);
    padding: var(--sp-24) 0;
  }
}

.accordion__question:hover {
  color: var(--color-accent);
}

.accordion__question-text {
  flex: 1;
}

.accordion__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
  transition: transform var(--transition-base);
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: var(--color-text-muted);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), background-color var(--transition-fast);
}

.accordion__icon::before {
  width: 16px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.accordion__icon::after {
  width: 2px;
  height: 16px;
  transform: translate(-50%, -50%);
}

.accordion__item.is-open .accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion__item.is-open .accordion__icon::before,
.accordion__item.is-open .accordion__icon::after {
  background-color: var(--color-accent);
}

.accordion__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease;
}

.accordion__answer-inner {
  padding: 0 0 var(--sp-24);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--color-text-light);
}

@media (min-width: 768px) {
  .accordion__answer-inner {
    font-size: var(--fs-base);
  }
}

.accordion__item.is-open .accordion__answer {
  max-height: 500px;
}

/* FAQ label styling */
.accordion__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-en);
  font-size: var(--fs-sm);
  font-weight: 700;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  margin-right: var(--sp-12);
}

.accordion__answer-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-en);
  font-size: var(--fs-sm);
  font-weight: 700;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  margin-right: var(--sp-12);
}

/* --------------------------------------------------------------------------
   Table of Contents
   -------------------------------------------------------------------------- */
.toc {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-24);
  margin-bottom: var(--sp-32);
  background-color: var(--color-bg-gray);
}

.toc__title {
  font-size: var(--fs-base);
  font-weight: 700;
  margin-bottom: var(--sp-12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.toc__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-4);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  border: none;
  background: none;
  cursor: pointer;
  padding: var(--sp-4) var(--sp-8);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.toc__toggle:hover {
  color: var(--color-accent);
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
  counter-reset: toc-counter;
}

.toc__item {
  counter-increment: toc-counter;
}

.toc__link {
  display: flex;
  align-items: baseline;
  gap: var(--sp-8);
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  padding: var(--sp-4) 0;
  transition: color var(--transition-fast);
  line-height: 1.6;
}

.toc__link::before {
  content: counter(toc-counter) '.';
  font-family: var(--font-en);
  font-weight: 600;
  color: var(--color-accent);
  flex-shrink: 0;
}

.toc__link:hover {
  color: var(--color-accent);
}

.toc__list--nested {
  padding-left: var(--sp-24);
  margin-top: var(--sp-4);
}

.toc__list--nested .toc__link {
  font-size: var(--fs-xs);
}

/* --------------------------------------------------------------------------
   Section Button Wrapper
   -------------------------------------------------------------------------- */
.section-btn-wrap {
  text-align: center;
  margin-top: var(--sp-32);
}

@media (min-width: 768px) {
  .section-btn-wrap {
    margin-top: var(--sp-48);
  }
}

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--sp-24);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--sp-8);
}

.form-label__required {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--sp-8);
  background-color: var(--color-danger);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-left: var(--sp-8);
}

.form-input {
  width: 100%;
  padding: var(--sp-12) var(--sp-16);
  font-size: var(--fs-base);
  color: var(--color-text);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  line-height: 1.6;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.15);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

textarea.form-input {
  min-height: 160px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23999' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sp-16) center;
  padding-right: var(--sp-48);
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  padding: var(--sp-16) 0;
  font-size: var(--fs-xs);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-4);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  color: var(--color-text-muted);
}

.breadcrumb__item::before {
  content: '>';
  color: var(--color-text-muted);
}

.breadcrumb__item:first-child::before {
  display: none;
}

.breadcrumb__link {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-accent);
}

.breadcrumb__current {
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-8);
  margin-top: var(--sp-48);
}

.pagination__link,
.pagination__current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--sp-8);
  font-family: var(--font-en);
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.pagination__link {
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.pagination__link:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.pagination__current {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Tag / Category Label
   -------------------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--sp-4) var(--sp-12);
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

.tag--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.tag--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.tag--outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
}