/* ============================================
   Contact Page Styles
   kichi - ワクワクをつくる基地
   ============================================ */

/* ── Contact Hero ── */
.contact-hero {
  background-color: rgb(0, 5, 54);
  color: var(--color-white);
  padding: calc(80px + var(--space-16)) 0 var(--space-16);
  position: relative;
  overflow: hidden;
}

.contact-hero__label {
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.5;
  margin-bottom: var(--space-1);
}

.contact-hero__sublabel {
  font-size: var(--text-sm);
  opacity: 0.5;
  margin-bottom: var(--space-6);
}

.contact-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: var(--font-black);
  line-height: 1.3;
  margin-bottom: var(--space-6);
  max-width: 500px;
}

.contact-hero__text {
  font-size: var(--text-base);
  line-height: 2;
  opacity: 0.8;
  max-width: 500px;
}

/* ============================================
   Main Layout Section
   ============================================ */
.contact-main {
  padding: var(--space-16) 0;
}

.contact-main__inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-12);
  align-items: start;
}

/* ── Main Methods Column ── */
.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* ============================================
   1. LINE Contact Card (Primary)
   ============================================ */
.contact-line-card {
  background: var(--color-white);
  border: 2px solid rgba(6, 199, 85, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-10);
  box-shadow: 0 12px 35px rgba(6, 199, 85, 0.09), var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.contact-line-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, #06C755 0%, #00A0E9 50%, #E4007F 100%);
}

.contact-badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.contact-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  letter-spacing: 0.03em;
}

.contact-badge--recommend {
  background: #FFF0F5;
  color: var(--color-magenta);
  border: 1px solid rgba(228, 0, 127, 0.2);
}

.contact-badge--fast {
  background: #EBFBF0;
  color: #058E3C;
  border: 1px solid rgba(6, 199, 85, 0.2);
}

.contact-line-card__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--font-black);
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.contact-line-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #06C755;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 4px rgba(6, 199, 85, 0.25));
}

.contact-line-card__desc {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

/* ── LINE Features ── */
.contact-line-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.contact-line-feature {
  background: var(--color-off-white);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.contact-line-feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  background: #FFF;
}

.contact-line-feature__icon {
  font-size: 1.5rem;
  line-height: 1;
}

.contact-line-feature__title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.contact-line-feature__text {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ── LINE CTA Action Box ── */
.contact-line-cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  background: linear-gradient(135deg, #F5FBF6 0%, #EBF8EE 100%);
  border: 1px dashed rgba(6, 199, 85, 0.45);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.contact-line-cta-action {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.btn-line-official {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-spring), filter var(--transition-fast);
  text-decoration: none;
  border-radius: var(--radius-md);
}

.btn-line-official__img {
  height: 52px;
  width: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.25);
  transition: transform var(--transition-spring), box-shadow var(--transition-fast);
}

.btn-line-official:hover .btn-line-official__img {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 18px rgba(6, 199, 85, 0.35);
}

.btn-line-official:active .btn-line-official__img {
  transform: translateY(1px) scale(0.98);
}

.contact-line-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-2);
}

/* ── LINE QR for PC ── */
.contact-line-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-white);
  border: 1px solid rgba(6, 199, 85, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.contact-line-qr__img-wrapper {
  width: 90px;
  height: 90px;
  background: #FFF;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-line-qr__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.contact-line-qr__label {
  font-size: 11px;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.3;
}

/* ── LINE Example Tags ── */
.contact-line-examples {
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}

.contact-line-examples__title {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.contact-line-examples__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.example-tag {
  background: var(--color-white);
  border: 1px solid var(--color-light-gray);
  border-radius: var(--radius-full);
  padding: 4px 10px;
  font-size: var(--text-xs);
  color: var(--color-text-light);
  line-height: 1.4;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.example-tag:hover {
  transform: translateY(-1px);
  border-color: var(--color-gray);
}

/* ============================================
   Divider
   ============================================ */
.contact-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-2) 0;
}

.contact-divider__line {
  flex: 1;
  height: 1px;
  background: var(--color-gray);
}

.contact-divider__text {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================
   2. Email Form Card (Secondary)
   ============================================ */
.contact-form-card {
  background: var(--color-white);
  border: 1px solid var(--color-light-gray);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.contact-form-card__header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-light-gray);
}

.contact-form__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.contact-form__title-icon {
  color: var(--color-text-muted);
}

.contact-form__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.contact-form__notice {
  color: var(--color-magenta);
  font-weight: var(--font-medium);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
}

.form-label__required {
  color: var(--color-magenta);
  font-size: var(--text-xs);
  margin-left: var(--space-2);
}

.form-label__optional {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  margin-left: var(--space-2);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-sky-blue);
  box-shadow: 0 0 0 3px rgba(0, 160, 233, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray);
}

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

/* ── Checkbox Group ── */
.form-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--text-base);
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray);
  border-radius: var(--radius-sm);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  position: relative;
  transition: background 0.2s ease, border-color 0.2s ease;
  flex-shrink: 0;
}

.form-checkbox input[type="checkbox"]:checked {
  background-color: var(--color-sky-blue);
  border-color: var(--color-sky-blue);
}

.form-checkbox input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-white);
  font-size: 12px;
  font-weight: bold;
}

/* ── Submit Button ── */
.form-submit {
  width: 100%;
  padding: var(--space-4) var(--space-8);
  background-color: var(--color-dark);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform var(--transition-spring), background-color var(--transition-fast);
  position: relative;
  overflow: hidden;
  margin-top: var(--space-3);
}

.form-submit:hover {
  background-color: #333;
  transform: translateY(-2px);
}

.form-submit:active {
  transform: translateY(1px);
}

.form-submit__plane {
  display: inline-block;
  transition: transform 0.4s var(--ease-out-back);
}

.form-submit:hover .form-submit__plane {
  animation: paperPlaneFly 0.6s ease forwards;
}

/* ── Validation States ── */
.form-input.is-error,
.form-textarea.is-error {
  border-color: var(--color-magenta);
}

.form-error {
  color: var(--color-magenta);
  font-size: var(--text-xs);
  margin-top: var(--space-1);
  display: none;
}

.form-error.is-visible {
  display: block;
}

/* ============================================
   Sidebar (FAQ + Message)
   ============================================ */
.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  position: sticky;
  top: 100px;
}

/* ── FAQ ── */
.faq {
  background: var(--color-white);
}

.faq__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-6);
}

.faq__item {
  border-bottom: 1px solid var(--color-light-gray);
}

.faq__question {
  width: 100%;
  padding: var(--space-4) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  text-align: left;
  cursor: pointer;
  gap: var(--space-4);
}

.faq__icon {
  font-size: var(--text-xl);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.faq__item.is-open .faq__icon {
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq__item.is-open .faq__answer {
  max-height: 300px;
  padding-bottom: var(--space-4);
}

.faq__answer-text {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-text-light);
}

/* ── Base Message Card ── */
.contact-message {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.contact-message__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
}

.contact-message__text {
  font-size: var(--text-sm);
  line-height: 1.8;
  opacity: 0.85;
  margin-bottom: var(--space-4);
}

.contact-message__dots {
  display: flex;
  gap: var(--space-2);
}

.contact-message__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

/* ============================================
   Thanks Page
   ============================================ */
.thanks {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--container-padding);
}

.thanks__icon {
  font-size: 4rem;
  margin-bottom: var(--space-6);
}

.thanks__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
}

.thanks__text {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 2;
  margin-bottom: var(--space-8);
  max-width: 500px;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 900px) {
  .contact-main__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .contact-line-card {
    padding: var(--space-6) var(--space-5);
  }

  .contact-line-card__title {
    font-size: var(--text-2xl);
  }

  .contact-line-features {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .contact-line-cta-box {
    flex-direction: column;
    padding: var(--space-5) var(--space-4);
    gap: var(--space-4);
  }

  .contact-line-qr {
    display: none;
    /* スマホではQR不要でボタンに集中 */
  }

  .btn-line-official__img {
    height: 46px;
  }

  .contact-form-card {
    padding: var(--space-6) var(--space-5);
  }
}