/* =====================================================
   IQG株式会社 トップページ スタイルシート
   カラーパレット:
     ホワイトベース + グリーン（再エネ）+ ネイビー（信頼性）
   ===================================================== */

/* ===== CSS Variables ===== */
:root {
  /* Brand Colors */
  --color-green-dark: #1A6B45;
  --color-green: #2E9B65;
  --color-green-light: #4DB87E;
  --color-green-pale: #E8F5EE;

  --color-navy: #1B3A6B;
  --color-navy-light: #2B5299;
  --color-navy-pale: #EBF0F8;

  /* Neutral */
  --color-white: #FFFFFF;
  --color-bg: #F7F9F7;
  --color-gray-50: #F5F5F5;
  --color-gray-100: #EBEBEB;
  --color-gray-300: #BDBDBD;
  --color-gray-500: #757575;
  --color-gray-700: #424242;
  --color-text: #212121;

  /* Accents */
  --color-accent: #F59E0B;

  /* Typography */
  --font-ja: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;

  /* Layout */
  --container-w: 1200px;
  --header-h: 72px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease);
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-ja);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

address {
  font-style: normal;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ===== Container ===== */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Section Common ===== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-eyebrow {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-green);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.4;
  margin-bottom: 16px;
}

.section-lead {
  font-size: 16px;
  color: var(--color-gray-500);
  line-height: 1.8;
}

.section-footer {
  text-align: center;
  margin-top: 48px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-ja);
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--color-green-dark);
  border-color: var(--color-green-dark);
}

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

.btn-primary-green:hover {
  background: var(--color-green-dark);
  border-color: var(--color-green-dark);
  transform: translateY(-1px);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-white);
}

.btn-outline-green {
  background: transparent;
  color: var(--color-green);
  border-color: var(--color-green);
}

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

.btn-contact {
  background: var(--color-green);
  color: var(--color-white);
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
}

.btn-contact:hover {
  background: var(--color-green-dark);
}

.btn-white-green {
  background: var(--color-white);
  color: var(--color-green);
  border-color: var(--color-white);
  font-size: 16px;
  padding: 16px 36px;
}

.btn-white-green:hover {
  background: var(--color-green-pale);
}

.btn-tel {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
  flex-direction: column;
  align-items: flex-start;
  padding: 12px 24px;
  font-size: 22px;
  font-weight: 700;
  font-family: var(--font-en);
  gap: 2px;
  line-height: 1;
}

.btn-tel:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-tel small {
  font-size: 11px;
  font-weight: 400;
  font-family: var(--font-ja);
  opacity: 0.8;
  display: block;
}

.tel-icon {
  font-size: 16px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}


/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-gray-100);
  transition: box-shadow var(--transition);
  height: var(--header-h);
}

.site-header.scrolled {
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.08);
}

.header-spacer {
  height: var(--header-h);
}

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}

/* Logo */
.header-logo {
  flex-shrink: 0;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-mark {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.logo-iq {
  color: var(--color-navy);
}

.logo-g {
  color: var(--color-green-light);
}

.logo-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-navy);
  letter-spacing: 0.05em;
}

/* Global Nav */
.global-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-navy);
  border-radius: 4px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-item:hover .nav-link {
  color: var(--color-green);
  background: var(--color-green-pale);
}

.nav-arrow {
  font-size: 10px;
  opacity: 0.6;
  transition: transform var(--transition);
}

.nav-item:hover .nav-arrow {
  transform: rotate(180deg);
}

/* Dropdown */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  min-width: 200px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 100;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--color-gray-700);
  transition: var(--transition);
}

.dropdown-menu li a:hover {
  background: var(--color-green-pale);
  color: var(--color-green);
  padding-left: 28px;
}

/* Header CTA */
.header-cta {
  flex-shrink: 0;
}

/* Hamburger (mobile) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: var(--transition);
}


/* ============================================================
   HERO / FIRST VIEW
   ============================================================ */
.hero {
  position: relative;
  height: calc(100vh - var(--header-h));
  min-height: 560px;
  max-height: 900px;
  overflow: hidden;
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s var(--ease);
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* Fallback gradient for demo without actual images */
  background-color: var(--color-navy);
  transform: scale(1.05);
  transition: transform 7s ease;
}

.hero-slide.active .hero-bg {
  transform: scale(1);
}

/* Slide-specific color gradients (for when images are missing) */
.hero-slide[data-slide="0"] .hero-bg {
  background-color: #1A4A30;
}

.hero-slide[data-slide="1"] .hero-bg {
  background-color: #1B3A6B;
}

.hero-slide[data-slide="2"] .hero-bg {
  background-color: #2D3748;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
      rgba(10, 30, 20, 0.75) 0%,
      rgba(10, 30, 20, 0.40) 60%,
      transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 60px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 740px;
}

.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-green-light);
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s 0.2s var(--ease), transform 0.6s 0.2s var(--ease);
}

.hero-title {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s 0.35s var(--ease), transform 0.6s 0.35s var(--ease);
}

.hero-desc {
  font-size: clamp(14px, 1.4vw, 17px);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.9;
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s 0.5s var(--ease), transform 0.6s 0.5s var(--ease);
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s 0.65s var(--ease), transform 0.6s 0.65s var(--ease);
}

.hero-slide.active .hero-eyebrow,
.hero-slide.active .hero-title,
.hero-slide.active .hero-desc,
.hero-slide.active .hero-btns {
  opacity: 1;
  transform: translateY(0);
}

/* Slider Controls */
.hero-controls {
  position: absolute;
  bottom: 100px;
  left: 60px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-prev,
.hero-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--color-white);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}

.hero-prev:hover,
.hero-next:hover {
  background: rgba(255, 255, 255, 0.35);
}

.hero-dots {
  display: flex;
  gap: 8px;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background: var(--color-green-light);
  width: 28px;
  border-radius: 4px;
}

/* Quick Links Bar */
.hero-quicklinks {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-gray-100);
}

.quicklinks-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 0;
}

.quicklinks-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-500);
  white-space: nowrap;
  padding-right: 20px;
  border-right: 1px solid var(--color-gray-100);
  margin-right: 16px;
  letter-spacing: 0.05em;
}

.quicklink-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-navy);
  border-right: 1px solid var(--color-gray-100);
  transition: var(--transition);
  white-space: nowrap;
  height: 100%;
}

.quicklink-item:hover {
  background: var(--color-green-pale);
  color: var(--color-green);
}

.quicklink-icon {
  font-size: 16px;
}


/* ============================================================
   NUMBERS
   ============================================================ */
.section-strengths {
  background: var(--color-navy);
  padding: 0;
  position: relative;
  overflow: hidden;
}

.section-strengths::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 120% at 20% 50%, rgba(77, 184, 126, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 100% at 80% 50%, rgba(43, 82, 153, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.strength-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 28px 44px;
  text-align: center;
  gap: 0;
  position: relative;
  transition: all 0.4s var(--ease);
}

.strength-item::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 0;
  height: 60%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.strength-item:last-child::after {
  display: none;
}

.strength-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.strength-item:hover .strength-keyword {
  color: var(--color-green-light);
}

.strength-item:hover .strength-divider {
  width: 40px;
  background: var(--color-green-light);
}

.strength-num {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-green-light);
  letter-spacing: 0.15em;
  opacity: 0.7;
  margin-bottom: 14px;
}

.strength-keyword {
  font-family: var(--font-en);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  letter-spacing: -0.01em;
  transition: color 0.4s var(--ease);
}

.strength-divider {
  display: block;
  width: 24px;
  height: 2px;
  background: rgba(255, 255, 255, 0.25);
  margin: 16px auto;
  border-radius: 1px;
  transition: all 0.4s var(--ease);
}

.strength-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.04em;
  line-height: 1.7;
}


/* ============================================================
   ABOUT US
   ============================================================ */
.section-about {
  background: var(--color-white);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text .section-eyebrow {
  text-align: left;
}

.about-text .section-title {
  text-align: left;
}

.about-message {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--color-gray-700);
  line-height: 2.2;
  margin-bottom: 40px;
}

.about-cta {
  text-align: left;
}

.about-image {
  border-radius: 12px;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}


/* ============================================================
   BUSINESS CARDS
   ============================================================ */
.section-business {
  background: var(--color-bg);
}

.business-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.business-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border-radius: 12px;
  padding: 36px 28px;
  border: 1px solid var(--color-gray-100);
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.business-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(30, 107, 69, 0.15);
  border-color: var(--color-green-light);
}

.business-card-icon {
  width: 64px;
  height: 64px;
  color: var(--color-green);
  margin-bottom: 24px;
}

.business-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.4;
}

.business-card-text {
  font-size: 14px;
  color: var(--color-gray-500);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 24px;
}

.business-card-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-green);
  display: flex;
  align-items: center;
  gap: 6px;
}

.arrow {
  transition: transform var(--transition);
}

.business-card:hover .arrow {
  transform: translateX(4px);
}


/* ============================================================
   SERVICE HIGHLIGHT
   ============================================================ */
.section-service-highlight {
  background: var(--color-white);
}

.service-highlight-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.service-highlight-text .section-eyebrow {
  text-align: left;
}

.service-highlight-text .section-title {
  text-align: left;
  margin-bottom: 24px;
}

.service-highlight-desc {
  font-size: 15px;
  color: var(--color-gray-500);
  line-height: 1.9;
  margin-bottom: 28px;
}

.service-highlight-list {
  margin-bottom: 36px;
}

.service-highlight-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-gray-100);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-navy);
}

.service-highlight-list li:first-child {
  border-top: 1px solid var(--color-gray-100);
}

.check-icon {
  color: var(--color-green);
  font-weight: 700;
  font-size: 16px;
}

/* Flow */
.service-flow {
  background: var(--color-bg);
  border-radius: 16px;
  padding: 40px;
  border: 1px solid var(--color-gray-100);
}

.flow-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.flow-num {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-green);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.flow-content p {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.7;
}

.flow-arrow {
  text-align: center;
  padding: 6px 0 6px 18px;
  color: var(--color-green-light);
  font-size: 20px;
}


/* ============================================================
   WORKS
   ============================================================ */
.section-works {
  background: var(--color-bg);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.work-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-gray-100);
  transition: var(--transition);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.work-card-img {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, var(--color-green-pale) 0%, var(--color-navy-pale) 100%);
  overflow: hidden;
}

.work-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.work-card-img.img-error::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #2E9B65 0%, #1B3A6B 100%);
  opacity: 0.2;
}

.work-card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-green);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
}

.work-card-body {
  padding: 24px;
}

.work-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 16px;
  line-height: 1.5;
}

.work-card-specs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.work-card-specs li {
  display: flex;
  gap: 12px;
  font-size: 13px;
  color: var(--color-gray-500);
}

.work-card-specs li span {
  font-weight: 700;
  color: var(--color-navy);
  min-width: 36px;
}


/* ============================================================
   NEWS + SEMINAR
   ============================================================ */
.section-news-seminar {
  background: var(--color-white);
}

.news-seminar-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 28px;
  border-bottom: 2px solid var(--color-green);
  padding-bottom: 16px;
}

.block-header-text .section-eyebrow {
  margin-bottom: 4px;
}

.block-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
}

.block-more {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-green);
  transition: var(--transition);
  white-space: nowrap;
  padding-bottom: 4px;
}

.block-more:hover {
  color: var(--color-green-dark);
}

/* News List */
.news-list {
  display: flex;
  flex-direction: column;
}

.news-item {
  border-bottom: 1px solid var(--color-gray-100);
}

.news-link {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  transition: background var(--transition);
}

.news-link:hover {
  background: var(--color-green-pale);
  margin: 0 -12px;
  padding: 16px 12px;
  border-radius: 6px;
}

.news-date {
  font-family: var(--font-en);
  font-size: 13px;
  color: var(--color-gray-500);
  white-space: nowrap;
}

.news-cat {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
  white-space: nowrap;
}

.cat-info {
  background: var(--color-navy-pale);
  color: var(--color-navy);
}

.cat-press {
  background: var(--color-green-pale);
  color: var(--color-green-dark);
}

.cat-media {
  background: #FEF3C7;
  color: #92400E;
}

.news-title {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

/* Seminar Cards */
.seminar-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.seminar-card {
  display: flex;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--color-gray-100);
  border-radius: 10px;
  transition: var(--transition);
  background: var(--color-bg);
}

.seminar-card:hover {
  border-color: var(--color-green-light);
  box-shadow: 0 4px 16px rgba(46, 155, 101, 0.1);
}

.seminar-date-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: 8px;
  padding: 12px 16px;
  min-width: 64px;
  flex-shrink: 0;
}

.seminar-month {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  opacity: 0.7;
}

.seminar-day {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
}

.seminar-year {
  font-family: var(--font-en);
  font-size: 11px;
  opacity: 0.6;
}

.seminar-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.seminar-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
  width: fit-content;
}

.tag-online {
  background: var(--color-green-pale);
  color: var(--color-green-dark);
}

.tag-offline {
  background: #EBF0F8;
  color: var(--color-navy);
}

.seminar-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.5;
}

.seminar-meta {
  font-size: 12px;
  color: var(--color-gray-500);
}


/* ============================================================
   CTA BANNER
   ============================================================ */
.section-cta {
  background: linear-gradient(135deg, var(--color-green-dark) 0%, var(--color-navy) 100%);
  padding: 80px 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-title {
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.5;
  margin-bottom: 8px;
}

.cta-desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
}

.cta-btns {
  display: flex;
  gap: 20px;
  flex-shrink: 0;
  flex-wrap: wrap;
}


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: var(--color-white);
}

.footer-main {
  padding: 72px 0 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.footer-logo .logo-mark {
  color: var(--color-green-light);
}

.footer-logo .logo-text {
  color: rgba(255, 255, 255, 0.8);
}

.footer-tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-address {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.8;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-nav-head {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-nav-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-col ul li a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer-nav-col ul li a:hover {
  color: var(--color-green-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.copyright {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  transition: color var(--transition);
}

.footer-legal a:hover {
  color: var(--color-white);
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .business-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-text .section-eyebrow,
  .about-text .section-title {
    text-align: center;
  }

  .about-message {
    text-align: center;
  }

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

  .service-highlight-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .news-seminar-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 60px;
  }

  .section {
    padding: 56px 0;
  }

  /* Header */
  .global-nav,
  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .global-nav.open {
    display: flex;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    overflow-y: auto;
  }

  .global-nav.open .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .global-nav.open .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--color-gray-100);
  }

  .global-nav.open .nav-link {
    padding: 16px 8px;
    font-size: 16px;
    width: 100%;
  }

  .global-nav.open .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 8px 16px;
  }

  /* Hero */
  .hero-content {
    padding: 0 24px;
  }

  .hero-controls {
    left: 24px;
    bottom: 80px;
  }

  .hero-quicklinks {
    display: none;
  }

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

  .strength-item::after {
    display: none;
  }

  .strength-item {
    padding: 36px 24px 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .strength-item:nth-child(odd) {
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }

  .strength-item:nth-child(n+3) {
    border-bottom: none;
  }

  /* Business */
  .business-cards {
    grid-template-columns: 1fr;
  }

  /* Works */
  .works-grid {
    grid-template-columns: 1fr;
  }

  /* CTA */
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-btns {
    justify-content: center;
  }

  /* Footer */
  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .strengths-grid {
    grid-template-columns: 1fr 1fr;
  }

  .strength-keyword {
    font-size: 22px;
  }

  .strength-item {
    padding: 28px 16px 24px;
  }

  .footer-nav {
    grid-template-columns: 1fr 1fr;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-btns {
    flex-direction: column;
  }

  .hero-btns .btn {
    width: 100%;
    text-align: center;
  }
}