/* ============================================================
   Contact page styles — テック系デザイン
   ============================================================ */

.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
  background: var(--color-bg-dark);
  border-bottom: 1px solid rgba(99,102,241,0.12);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.page-hero__content {
  text-align: center;
}

.page-hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-top: var(--space-sm);
  background: linear-gradient(135deg, var(--color-white), var(--color-gray-200));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero__desc {
  margin-top: var(--space-base);
  font-size: 1rem;
  color: rgba(255,255,255,0.52);
  line-height: 1.8;
  max-width: 560px;
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-3xl);
  align-items: start;
}

/* ---------- フォーム ---------- */
.contact-form-wrap {
  background: var(--color-bg-card);
  border: 1px solid rgba(99,102,241,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.contact-form-wrap::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-message {
  padding: var(--space-md) var(--space-base);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.55;
}

.form-message--error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  color: #FCA5A5;
}

.form-message--success {
  background: rgba(52,211,153,0.08);
  border: 1px solid rgba(52,211,153,0.25);
  color: #6EE7B7;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.65);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.form-required {
  color: var(--color-accent);
  font-size: 0.7rem;
  font-weight: 700;
  background: rgba(6,182,212,0.1);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}

.form-optional {
  color: rgba(255,255,255,0.3);
  font-size: 0.7rem;
  font-weight: 400;
}

.form-input,
.form-select,
.form-textarea {
  background: rgba(30,41,59,0.7);
  border: 1px solid rgba(99,102,241,0.18);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: var(--space-md) var(--space-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
  min-height: 48px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255,255,255,0.2);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}

.form-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(99,102,241,0.6)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-select option {
  background: var(--color-bg-card);
  color: var(--color-white);
}

.form-textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.65;
}

.contact-form__submit {
  width: 100%;
  justify-content: center;
}

.contact-form__note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  line-height: 1.65;
  text-align: center;
  font-family: var(--font-mono);
}

/* ---------- Contact Info ---------- */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  position: sticky;
  top: calc(var(--nav-height) + var(--space-base));
}

.contact-info__block {
  background: var(--color-bg-card);
  border: 1px solid rgba(99,102,241,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.contact-info__block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0.5;
}

.contact-info__block h3 {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
  font-family: var(--font-mono);
}

.contact-info__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info__list li {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.contact-info__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  flex-shrink: 0;
}

.contact-info__label {
  font-size: 0.68rem;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

.contact-info__value {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.55;
  transition: color var(--transition-fast);
}

a.contact-info__value:hover {
  color: var(--color-primary-light);
}

address.contact-info__value {
  font-style: normal;
}

/* ---------- FAQ ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  border: 1px solid rgba(99,102,241,0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-card);
}

.faq-item__q {
  padding: var(--space-base);
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.72);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  min-height: 44px;
}

.faq-item__q::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color-primary-light);
  flex-shrink: 0;
  transition: transform var(--transition-base);
  font-family: var(--font-mono);
}

.faq-item[open] .faq-item__q::after {
  transform: rotate(45deg);
}

.faq-item__q:hover {
  color: var(--color-white);
  background: rgba(99,102,241,0.05);
}

.faq-item__a {
  padding: 0 var(--space-base) var(--space-base);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.75;
  border-top: 1px solid rgba(99,102,241,0.08);
  padding-top: var(--space-base);
}

@media (max-width: 1024px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-info {
    position: static;
  }
}