/*
 * Components
 * くるま買取ケイヴィレッジ
 * ボタン、カード、フォームなどのコンポーネント
 */

/* ========================================
   ボタン
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 18px 36px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.03em;
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  border: none;
  text-transform: none;
}

.btn--primary {
  background: var(--primary-gradient-rich);
  color: var(--text-white);
  box-shadow: var(--shadow-primary);
  position: relative;
  overflow: hidden;
}

.btn--primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--primary-gradient-shine);
  transition: left 0.5s ease;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-lg);
}

.btn--primary:hover::before {
  left: 100%;
}

.btn--secondary {
  background: var(--secondary-gradient);
  color: var(--text-white);
  box-shadow: 0 4px 12px rgba(0, 78, 137, 0.3);
  position: relative;
  overflow: hidden;
}

.btn--secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%, rgba(255,255,255,0.1) 100%);
  transition: left 0.5s ease;
}

.btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 78, 137, 0.4);
}

.btn--secondary:hover::before {
  left: 100%;
}

.btn--outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.btn--large {
  padding: 20px 48px;
  font-size: var(--font-size-lg);
}

.btn--small {
  padding: 12px 24px;
  font-size: var(--font-size-sm);
}

.btn--block {
  display: flex;
  width: 100%;
}

/* ========================================
   カード
   ======================================== */

.card {
  background: var(--bg-white);
  border-radius: var(--border-radius-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(255, 107, 53, 0.08);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--primary-gradient-rich);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(255, 107, 53, 0.15);
  border-color: rgba(255, 107, 53, 0.2);
}

.card:hover::before {
  opacity: 1;
}

.card:hover::after {
  opacity: 1;
}

.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  font-size: 40px;
  position: relative;
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.2);
  transition: all var(--transition-base);
}

.card__icon::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: var(--border-radius-md);
  background: linear-gradient(135deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 50%);
  opacity: 0.3;
  z-index: -1;
}

.card:hover .card__icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.card__description {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: var(--line-height-base);
  margin-bottom: var(--spacing-md);
}

.card__list {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.card__list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.card__list-item::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  color: var(--success-color);
}

/* ========================================
   グリッド
   ======================================== */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   フォーム
   ======================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-label--required::after {
  content: '必須';
  display: inline-block;
  margin-left: var(--spacing-xs);
  padding: 2px 8px;
  background: var(--error-color);
  color: var(--text-white);
  font-size: 10px;
  border-radius: var(--border-radius-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: var(--bg-white);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--error-color);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--error-color);
}

.form-checkbox,
.form-radio {
  margin-right: var(--spacing-xs);
}

/* ========================================
   バッジ
   ======================================== */

.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius-full);
}

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

.badge--secondary {
  background: var(--secondary-light);
  color: var(--secondary-dark);
}

.badge--success {
  background: #d1fae5;
  color: var(--success-color);
}

.badge--error {
  background: #fee2e2;
  color: var(--error-color);
}

/* ========================================
   アイコン
   ======================================== */

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon--sm {
  width: 24px;
  height: 24px;
  font-size: 14px;
}

.icon--md {
  width: 32px;
  height: 32px;
  font-size: 18px;
}

.icon--lg {
  width: 48px;
  height: 48px;
  font-size: 24px;
}

.icon--xl {
  width: 64px;
  height: 64px;
  font-size: 32px;
}


/* ========================================
   ローディング
   ======================================== */

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--text-white);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========================================
   Page Hero（各ページのヒーローセクション）
   ======================================== */

.page-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
  color: var(--text-white);
  padding: 80px 0 60px;
  text-align: center;
}

.page-hero__title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: var(--font-weight-black);
  margin-bottom: 16px;
}

.page-hero__title i {
  margin-right: 12px;
  opacity: 0.9;
}

.page-hero__lead {
  font-size: clamp(16px, 2.5vw, 20px);
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .page-hero {
    padding: 60px 0 40px;
  }
}

/* ========================================
   Back to Top Button
   ======================================== */

.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--text-white);
  border: none;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 998;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: #1e40af;
  transform: translateY(-3px);
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 90px;
    width: 45px;
    height: 45px;
    font-size: 18px;
  }
}

/* ========================================
   CTA Contact Section
   ======================================== */

.cta-contact {
  color: var(--text-primary);
}

.cta-contact__inner {
  text-align: center;
}

.cta-contact__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-black);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.cta-contact__lead {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.cta-contact__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 600px;
  margin: 0 auto;
}

.cta-contact__phone {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-white);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  max-width: 500px;
  margin: 0 auto;
}

.cta-contact__phone:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.cta-contact__phone-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--success-color);
  color: var(--text-white);
  border-radius: 50%;
  font-size: 28px;
  flex-shrink: 0;
}

.cta-contact__phone-content {
  text-align: left;
}

.cta-contact__phone-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.cta-contact__phone-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: 4px;
}

.cta-contact__phone-hours {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .cta-contact__title {
    font-size: var(--font-size-3xl);
  }

  .cta-contact__lead {
    font-size: var(--font-size-base);
  }

  .cta-contact__phone {
    flex-direction: column;
    text-align: center;
  }

  .cta-contact__phone-content {
    text-align: center;
  }

  .cta-contact__phone-number {
    font-size: var(--font-size-2xl);
  }
}