/* ============================================
 * MerCo Lab — main.css v2.0
 * Faithfully reproduced from merco-lab.com (Studio)
 * ============================================ */

/* ---- デザイントークン ---- */
:root {
  --color-text-primary:   #4a4a6a;
  --color-text-dark:      #3a3a5a;
  --color-text-secondary: #6a6a8a;
  --color-text-light:     #9a9ab0;
  --color-white:          #ffffff;

  /* グラデーション背景 */
  --grad-hero:    linear-gradient(160deg, #f0d4e8 0%, #c8d8f0 50%, #b8d0f0 100%);
  --grad-section: linear-gradient(160deg, #e8d0f0 0%, #c8d8f8 40%, #b8d0f8 100%);
  --grad-light:   linear-gradient(160deg, #f4e0f4 0%, #d4e4f8 50%, #c4d8f8 100%);
  --grad-blue:    linear-gradient(160deg, #c8e6ff 0%, #deebff 100%);

  --color-accent:      #6a7fd0;
  --color-accent-hover:#5a6fc0;

  --font-en:   'Montserrat', sans-serif;
  --font-ja:   'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;

  --container-max: 1400px;
  --section-pad:   80px;
  --radius-card:   16px;
  --radius-header: 12px;
  --transition:    0.25s ease;
}

/* ============================================
 * リセット・ベース
 * ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-ja);
  font-size: 22px;
  line-height: 1.8;
  color: var(--color-text-primary);
  background: var(--grad-hero);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

h3 {
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  color: var(--color-text-dark);
  line-height: 1.5;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: .7; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 32px;
}

/* ============================================
 * ヘッダー — 角丸カード型・半透明
 * ============================================ */
.site-header {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1400px;
  z-index: 1000;
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-header);
  border: 1px solid rgba(255,255,255,0.4);
  transition: background var(--transition);
}

.site-header.scrolled {
  background: rgba(255,255,255,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img { height: 36px; width: auto; }
.site-logo-text {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text-dark);
  letter-spacing: .04em;
}

/* ナビ */
.global-nav { display: flex; align-items: center; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-list a {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-dark);
  letter-spacing: .03em;
}
.nav-cta a {
  padding: 8px 20px;
  border: 1px solid var(--color-text-dark);
  border-radius: 20px;
  font-size: 12px;
  letter-spacing: .08em;
  transition: background var(--transition), color var(--transition);
}
.nav-cta a:hover { background: var(--color-text-dark); color: #fff; opacity: 1; }

/* ハンバーガー */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-dark);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* ============================================
 * HERO
 * ============================================ */
.hero {
  position: relative;
  min-height: 65svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: url(http://dev.merco-lab.com/wp-content/uploads/2026/07/top_fv_bg.jpg) center center / cover no-repeat;
  padding-top: 6em;
  padding-bottom: 1em;
}

.hero-bg-video,
.hero-bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-bg-video { object-fit: cover; opacity: .3; }
.hero-bg-image { background-size: cover; background-position: center; opacity: .3; }

.hero-overlay { display: none; }

.hero-heading {
  font-family: var(--font-ja);
  font-size: clamp(24px, 3.4vw, 37px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--color-text-dark);
  margin-bottom: 24px;
}

.hero-heading-line1 {
  white-space: nowrap;
  display: inline-block;
  max-width: 100%;
  overflow: visible;
}

.hero-subtext {
  font-size: clamp(14px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  letter-spacing: .03em;
}

.btn-hero {
  display: inline-block;
  padding: 14px 30px;
  width: auto;
  text-align: center;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.8);
  color: var(--color-text-dark);
  font-size: 13px;
  letter-spacing: .1em;
  border-radius: 24px;
  backdrop-filter: blur(8px);
  transition: background var(--transition);
  margin-bottom: 3em;
}
.btn-hero:hover { background: rgba(255,255,255,0.85); opacity: 1; }

/* Hero 2カラム */
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  align-items: center;
  gap: 40px;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 32px;
  position: relative;
  z-index: 1;
}

.hero-text { display: flex; flex-direction: column; gap: 0; }

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image img {
  width: 130%;
  height: auto;
  display: block;
  filter: drop-shadow(0 8px 32px rgba(100,100,200,0.15));
}

/* ============================================
 * セクション共通
 * ============================================ */
.section {
  padding-block: var(--section-pad);
  background: var(--grad-section);
}

.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}
.section-eyebrow::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-text-secondary);
  flex-shrink: 0;
}

.section-title-ja {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 700;
  color: var(--color-text-dark);
  line-height: 1.5;
  letter-spacing: .03em;
  margin-bottom: 48px;
}

/* ============================================
 * OUR SERVICES
 * ============================================ */
.section-services {
  background: #ffffff;
}

.section-services .section-title-ja {
  background: linear-gradient(135deg, rgba(240,180,210,0.6) 0%, rgba(200,200,240,0.4) 100%);
  border-radius: var(--radius-card);
  padding: 32px 40px;
  display: inline-block;
  margin-bottom: 48px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.service-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-icon {
  width: 100%;
  max-width: 600px;
  height: 480px;
  object-fit: contain;
  margin-bottom: 8px;
}

.service-title {
  font-size: inherit;
  font-weight: 700;
  color: inherit;
  line-height: inherit;
}

.service-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

/* ============================================
 * SOLUTIONS
 * ============================================ */
.section-solutions {
  background: var(--grad-blue);
}

.solutions-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 0;
}

.solutions-left,
.solutions-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solutions-quotes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-start;
  padding-top: 8px;
}

.solutions-quote {
  font-size: 13px;
  color: var(--color-text-secondary);
  letter-spacing: .02em;
}

.solutions-subheading {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  color: var(--color-text-dark);
  line-height: 1.6;
  margin-bottom: 16px;
}

.solutions-body { font-size: 13px; color: var(--color-text-secondary); line-height: 1.9; }

.solutions-img {
  width: 100%;
  max-width: 640px;
  margin-top: 16px;
}

/* ============================================
 * OUR PROJECTS
 * ============================================ */
.section-projects {
  background: #ffffff;
}

.project-banner {
  background: linear-gradient(135deg, rgba(200,190,240,0.7) 0%, rgba(200,160,200,0.5) 100%);
  border-radius: var(--radius-card);
  padding: 28px 40px;
  margin-bottom: 32px;
  text-align: center;
}
.project-banner-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-white);
  letter-spacing: .04em;
}
.project-banner-sub {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  margin-top: 4px;
}

.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.project-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: rgba(255,255,255,0.4);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.6);
}

.project-info {
  padding: 20px 28px 16px;
  order: -1;
}

.project-thumb {
  width: 100%;
  overflow: hidden;
  background: #fff;
}
.project-thumb img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform .4s ease;
}
.project-card:hover .project-thumb img { transform: scale(1.01); }
.project-thumb--empty { min-height: 200px; }

.project-cat {
  display: inline-block;
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  letter-spacing: .04em;
}

.project-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 4px;
}

.project-client { font-size: 13px; color: var(--color-text-light); }
.project-scope  { font-size: 13px; color: var(--color-text-secondary); margin-top: 2px; }

/* ============================================
 * VOICES FROM OUR CLIENTS
 * ============================================ */
.section-voices {
  display: none;
}

.voice-card {
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: var(--radius-card);
  padding: 36px 40px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.voice-body { font-size: 14px; line-height: 1.9; color: var(--color-text-secondary); flex: 1; }
.voice-meta { display: flex; flex-direction: column; gap: 2px; }
.voice-name { font-size: 13px; font-weight: 500; color: var(--color-text-dark); }
.voice-area { font-size: 12px; color: var(--color-text-light); }

.splide__pagination__page { background: rgba(100,120,200,0.3); }
.splide__pagination__page.is-active { background: var(--color-accent); }
.splide__arrow { background: rgba(255,255,255,0.6); backdrop-filter: blur(4px); }
.splide__arrow svg { fill: var(--color-text-dark); }

/* ============================================
 * ABOUT
 * ============================================ */
.section-about {
  background: var(--grad-blue);
}

.about-inner {
  background: linear-gradient(160deg, #ffffff 0%, rgba(255,255,255,0.2) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.9);
  border-radius: var(--radius-card);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
}

.about-brand-name {
  font-family: var(--font-en);
  font-size: 32px;
  font-weight: 700;
  color: #2a2a4a;
  line-height: 1.4;
  margin-bottom: 20px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.about-brand-ruby {
  font-family: var(--font-ja);
  font-size: 16px;
  font-weight: 400;
  color: #5a5a7a;
}

.about-tagline {
  font-size: 15px;
  font-weight: 500;
  color: #3a3a5a;
  line-height: 2;
  margin-bottom: 28px;
}

.about-info { display: flex; flex-direction: column; gap: 8px; }

.about-info-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(100,100,200,0.1);
}
.about-info-row:last-child { border-bottom: none; }

.about-info-row dt {
  font-size: 13px;
  color: #5a5a7a;
  width: 4em;
  flex-shrink: 0;
}

.about-info-row dd {
  font-size: 15px;
  font-weight: 500;
  color: #2a2a4a;
}

.about-info-row dd small {
  font-size: 13px;
  color: #6a6a8a;
  display: block;
  margin-top: 2px;
  font-weight: 400;
}

.about-info-row dd a { color: #2a2a4a; }

.about-icon {
  font-size: 20px;
  color: #6a6a8a;
}

.about-photo {
  border-radius: var(--radius-card);
  overflow: hidden;
  background: rgba(200,210,240,0.3);
  height: 100%;
}

/* ============================================
 * FAQ
 * ============================================ */
.section-faq {
  background: #ffffff;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 780px;
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid rgba(100,100,200,0.12);
}

.faq-btn {
  width: 100%;
  display: grid;
  grid-template-columns: 28px 1fr 24px;
  gap: 12px;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 20px 0;
  text-align: left;
}

.faq-q-label,
.faq-a-label {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 500;
  color: var(--color-accent);
  flex-shrink: 0;
}
.faq-a-label { color: var(--color-text-light); }

.faq-q-text {
  font-size: 14px;
  color: var(--color-text-dark);
  line-height: 1.6;
}

.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-text-light);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}
.faq-icon::before { width: 12px; height: 1.5px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.faq-icon::after  { width: 1.5px; height: 12px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.faq-btn[aria-expanded="true"] .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.faq-answer { overflow: hidden; display: grid; grid-template-rows: 0fr; transition: grid-template-rows .28s ease; }
.faq-answer:not([hidden]) { grid-template-rows: 1fr; }
.faq-answer[hidden] { display: grid !important; grid-template-rows: 0fr; visibility: hidden; }

.faq-answer-inner {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  padding-bottom: 20px;
  overflow: hidden;
}
.faq-answer-inner p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.85; }

/* ============================================
 * CONTACT + FOOTER 統合
 * ============================================ */
.wpcf7-form label {
  display: block;
  font-size: 13px;
  color: var(--color-text-dark);
  margin-bottom: 16px;
  font-weight: 400;
}

.wpcf7-form input[type="text"],
.wpcf7-form input[type="email"],
.wpcf7-form textarea,
.wpcf7-form .wpcf7-text,
.wpcf7-form .wpcf7-email,
.wpcf7-form .wpcf7-textarea {
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-family: var(--font-ja);
  color: var(--color-text-dark);
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  transition: background var(--transition);
  display: block;
  margin-top: 8px;
}

.wpcf7-form input[type="text"]:focus,
.wpcf7-form input[type="email"]:focus,
.wpcf7-form textarea:focus {
  outline: none;
  background: rgba(255,255,255,0.85);
}

.wpcf7-form textarea { min-height: 160px; resize: vertical; }

.wpcf7-form input[type="submit"] {
  width: 100%;
  padding: 18px;
  background: rgba(255,255,255,0.6);
  color: var(--color-text-dark);
  border: none;
  border-radius: 12px;
  font-size: 16px;
  letter-spacing: .1em;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background var(--transition);
  margin-top: 8px;
}

.wpcf7-form input[type="submit"]:hover {
  background: rgba(255,255,255,0.85);
}

/* ============================================
 * レスポンシブ
 * ============================================ */
@media (max-width: 768px) {
  :root { --section-pad: 56px; }

  .site-header { width: calc(100% - 24px); top: 10px; }

  .nav-toggle { display: flex; }
  .global-nav {
    position: fixed;
    top: 0; right: 0;
    width: min(300px, 85vw);
    height: 100dvh;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    padding: 60px 32px;
    transform: translateX(100%);
    transition: transform var(--transition);
  }
  .global-nav.is-open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: flex-start; gap: 24px; }
  .nav-list a { font-size: 16px; }

  .hero { padding-top: 100px; }
  .hero-content { grid-template-columns: 1fr; padding-inline: 24px; }
  .hero-image { order: -1; }
  .hero-image img { width: 100%; }
  .hero-heading { font-size: clamp(24px, 6vw, 36px); }

  .services-grid { grid-template-columns: 1fr; gap: 32px; }
  .section-services .section-title-ja { padding: 24px; }

  .solutions-block { grid-template-columns: 1fr; gap: 24px; }

  .projects-grid { flex-direction: column; }

  .about-inner { grid-template-columns: 1fr; padding: 28px; gap: 28px; }

  .contact-footer-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-footer-left { position: static; order: 1; }
  .contact-footer-right { order: -1; }

  .footer-nav-list { text-align: left; flex-direction: row; flex-wrap: wrap; gap: 8px 24px; }
}

/* ============================================
 * アクセシビリティ
 * ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }