/* ============================================
   Lead Links Corporate Site - White Luxury
   高級感のある白基調 × 黒アクセント
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&family=Noto+Serif+JP:wght@400;700&display=swap');

/* --- CSS Variables --- */
:root {
  /* White Luxury Palette */
  --color-bg: #FFFFFF;
  --color-bg-off: #FAFAFA;
  --color-bg-warm: #F6F5F3;
  --color-bg-dark: #111111;
  --color-bg-dark-soft: #1A1A1A;
  --color-text: #111111;
  --color-text-mid: #2A2A2A;
  --color-text-light: #6B6B6B;
  --color-text-muted: #AAAAAA;
  --color-text-white: #FFFFFF;
  --color-text-white-soft: rgba(255, 255, 255, 0.65);
  --color-accent: #111111;
  --color-accent-hover: #333333;
  --color-border: #E8E8E8;
  --color-border-dark: #2A2A2A;
  --color-border-subtle: #F0F0F0;

  /* Typography */
  --font-main: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-serif: "Noto Serif JP", "Yu Mincho", serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;

  /* Spacing */
  --section-padding: 120px 0;
  --container-width: 1100px;
  --container-padding: 0 24px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.35s ease;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-text-light);
}

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

ul,
ol {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* --- Section Common --- */
.section {
  padding: var(--section-padding);
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-label {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  max-width: 520px;
  margin: 0 auto;
  line-height: 2;
}

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Header - LANY inspired, polished
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

.header-logo {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 2px;
}

.header-logo span {
  font-weight: 400;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header-nav a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-mid);
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.header-nav a:not(.header-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-text);
  transition: width 0.3s ease;
}

.header-nav a:not(.header-cta):hover::after {
  width: 100%;
}

.header-nav a:hover {
  color: var(--color-text);
}

.header-nav a.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 48px;
  background: var(--color-bg-dark);
  color: var(--color-text-white) !important;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.header-cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-text-white) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.header-cta::after {
  display: none;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  font-size: var(--font-size-lg);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

.mobile-nav-cta {
  display: inline-block;
  margin-top: 12px;
  padding: 14px 40px;
  background: var(--color-bg-dark);
  color: var(--color-text-white) !important;
  font-size: var(--font-size-base) !important;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 100px;
  transition: background var(--transition-fast);
}

.mobile-nav-cta:hover {
  background: var(--color-accent-hover);
}

/* ============================================
   Hero - White Dominant with Black accent
   ============================================ */
.hero {
  padding: 0;
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  align-items: center;
  gap: 72px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 140px 24px 100px;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 36px;
}

.hero-eyebrow::before {
  content: '';
  width: 36px;
  height: 1px;
  background: var(--color-text);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.hero-title strong {
  font-weight: 900;
  letter-spacing: 0.05em;
}

.hero-title .accent {
  position: relative;
}

.hero-title .accent::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  opacity: 0.25;
}

.hero-sub {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 2.1;
  margin-bottom: 44px;
  max-width: 460px;
}

.hero-sub .em {
  font-weight: 700;
  color: var(--color-text);
}

.hero-priceline {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.hero-priceline::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-text);
  flex-shrink: 0;
  opacity: 0.3;
}

.hero-priceline-divider {
  display: inline-block;
  width: 24px;
  min-width: 24px;
  height: 1px;
  background: var(--color-text);
  flex-shrink: 0;
  opacity: 0.3;
  vertical-align: middle;
}

.hero-priceline-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  letter-spacing: 0.04em;
}

.hero-priceline-text strong {
  font-weight: 700;
  color: var(--color-text);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 44px;
  background: var(--color-bg-dark);
  color: var(--color-text-white);
  font-size: var(--font-size-sm);
  font-weight: 500;
  font-family: var(--font-main);
  border: none;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-text-white);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 44px;
  background: transparent;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  font-weight: 400;
  font-family: var(--font-main);
  border: 1px solid var(--color-border);
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.hero-visual-card {
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-bg-warm);
}

.hero-visual-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-img svg {
  width: 100%;
  height: 100%;
}

/* ============================================
   Services
   ============================================ */
.services {
  background: var(--color-bg-warm);
}

/* LLMO: フル幅の別格カード（黒） */
.service-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--color-bg-dark);
  color: var(--color-text-white);
  overflow: hidden;
  margin-bottom: 1px;
}

.service-hero-content {
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-hero-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 5px 16px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  letter-spacing: 0.12em;
  margin-bottom: 28px;
}

.service-hero-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-white);
  margin-bottom: 10px;
}

.service-hero-catch {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--color-text-white-soft);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.service-hero-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-white-soft);
  line-height: 2;
}

.service-hero-visual {
  background: var(--color-bg-dark-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px;
  border-left: 1px solid var(--color-border-dark);
}

.service-hero-visual svg {
  width: 100%;
  max-width: 260px;
  height: auto;
}

/* 4サービスカード */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.service-card {
  padding: 40px 24px;
  background: var(--color-bg);
  border-right: 1px solid var(--color-border);
  transition: background var(--transition-base);
}

.service-card:last-child {
  border-right: none;
}

.service-card:hover {
  background: var(--color-bg-off);
}

.service-card-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 24px;
  color: var(--color-text);
}

.service-card-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.service-card-catch {
  font-size: var(--font-size-xs);
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.service-card-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ============================================
   Strengths - White bg with black cards
   ============================================ */
.strengths {
  background: var(--color-bg);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.strength-card {
  text-align: center;
  padding: 56px 32px;
  background: var(--color-bg);
  border-right: 1px solid var(--color-border);
  transition: background var(--transition-base);
}

.strength-card:last-child {
  border-right: none;
}

.strength-card:hover {
  background: var(--color-bg-off);
}

.strength-card-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-dark);
  color: var(--color-text-white);
  padding: 10px;
}

.strength-card-icon svg {
  width: 22px;
  height: 22px;
}

.strength-card-num {
  font-size: 0.5625rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.25em;
  margin-bottom: 20px;
}

.strength-card-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  line-height: 1.7;
}

.strength-card-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ============================================
   Pricing
   ============================================ */
.pricing {
  background: var(--color-bg-warm);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-bg);
}

.pricing-card {
  padding: 40px 22px;
  background: var(--color-bg);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: background var(--transition-base);
}

.pricing-card:last-child {
  border-right: none;
}

.pricing-card:hover {
  background: var(--color-bg-off);
}

/* Featured = 黒カード */
.pricing-card.featured {
  background: var(--color-bg-dark);
  color: var(--color-text-white);
  border-right-color: var(--color-border-dark);
}

.pricing-card.featured:hover {
  background: var(--color-bg-dark-soft);
}

.pricing-card.featured .pricing-card-name {
  color: var(--color-text-white);
}

.pricing-card.featured .pricing-card-price {
  color: var(--color-text-white-soft);
  border-bottom-color: var(--color-border-dark);
}

.pricing-card.featured .pricing-card-price strong {
  color: var(--color-text-white);
}

.pricing-card.featured .pricing-card-features li {
  color: var(--color-text-white-soft);
}

.pricing-card.featured .pricing-card-features li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23FFFFFF' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M5 13l4 4L19 7'/%3E%3C/svg%3E");
}

.pricing-card-name {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.pricing-card-price {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-card-price strong {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-top: 6px;
}

.pricing-card-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.pricing-card-features li {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  padding-left: 22px;
  position: relative;
  line-height: 1.7;
}

.pricing-card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23111111' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M5 13l4 4L19 7'/%3E%3C/svg%3E") no-repeat center / contain;
}

.pricing-card-btn {
  display: block;
  text-align: center;
  padding: 13px 18px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  font-family: var(--font-main);
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-text);
  cursor: pointer;
  letter-spacing: 0.06em;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.pricing-card-btn:hover {
  background: var(--color-bg-dark);
  color: var(--color-text-white);
}

.pricing-card.featured .pricing-card-btn {
  background: var(--color-text-white);
  color: var(--color-bg-dark);
  border-color: var(--color-text-white);
}

.pricing-card.featured .pricing-card-btn:hover {
  background: var(--color-border);
  color: var(--color-bg-dark);
}

/* ============================================
   Company
   ============================================ */
.company {
  background: var(--color-bg);
}

.company-table {
  max-width: 720px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-bg);
}

.company-table table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 20px 28px;
  font-size: var(--font-size-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

.company-table th {
  width: 160px;
  font-weight: 700;
  color: var(--color-text);
  background: var(--color-bg-off);
}

.company-table td {
  color: var(--color-text-light);
}

/* ============================================
   FAQ
   ============================================ */
.faq {
  background: var(--color-bg-warm);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-bg);
}

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

.faq-item:last-child {
  border-bottom: none;
}

.faq-item.active {
  background: var(--color-bg-off);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 24px 28px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  gap: 16px;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-text-light);
}

.faq-question-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--color-bg-dark);
  color: var(--color-text-white);
  font-size: 0.625rem;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-question-text {
  flex: 1;
}

.faq-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  padding-left: 70px;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 2;
}

/* ============================================
   Contact - 黒パネル（白の中の黒アクセント）
   ============================================ */
.contact {
  background: var(--color-bg);
}

.contact .section-header {
  margin-bottom: 40px;
}

.contact-container {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
}

.contact-box {
  padding: 56px 48px;
  background: var(--color-bg-dark);
  color: var(--color-text-white);
}

.contact-box-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-white);
  margin-bottom: 16px;
}

.contact-box-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-white-soft);
  margin-bottom: 36px;
  line-height: 2;
}

.contact-box .btn-primary {
  padding: 18px 56px;
  font-size: var(--font-size-sm);
  background: var(--color-text-white);
  color: var(--color-bg-dark);
}

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

.contact-note {
  margin-top: 20px;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.45);
  padding: 56px 0 36px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

.footer-brand {
  flex: 1;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.footer-logo span {
  font-weight: 400;
}

.footer-info {
  font-size: var(--font-size-xs);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.45);
}

.footer-info a {
  color: rgba(255, 255, 255, 0.45);
  transition: color var(--transition-fast);
}

.footer-info a:hover {
  color: #fff;
}

.footer-nav-group {
  display: flex;
  gap: 56px;
}

.footer-nav h4 {
  font-size: 0.5625rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-nav a {
  display: block;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: #fff;
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.04em;
}

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

  .pricing-card {
    border-bottom: 1px solid var(--color-border);
  }

  .pricing-card.featured {
    border-bottom-color: var(--color-border-dark);
  }

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

  .service-card {
    border-bottom: 1px solid var(--color-border);
  }

  .service-card:nth-child(2) {
    border-right: none;
  }

  .hero-inner {
    grid-template-columns: 1fr 320px;
    gap: 48px;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }

  .header-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  /* Hero */
  .hero {
    min-height: auto;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 120px 24px 72px;
  }

  .hero-visual {
    order: -1;
    max-width: 360px;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  /* Services */
  .service-hero {
    grid-template-columns: 1fr;
  }

  .service-hero-visual {
    border-left: none;
    border-top: 1px solid var(--color-border-dark);
    padding: 28px;
    min-height: 180px;
  }

  .service-hero-content {
    padding: 36px 28px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .service-card:last-child {
    border-bottom: none;
  }

  /* Strengths */
  .strengths-grid {
    grid-template-columns: 1fr;
  }

  .strength-card {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .strength-card:last-child {
    border-bottom: none;
  }

  /* Pricing */
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card {
    border-right: none;
  }

  /* Company */
  .company-table th {
    width: 110px;
    padding: 16px 18px;
  }

  .company-table td {
    padding: 16px 18px;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 32px;
  }

  .footer-nav-group {
    flex-direction: column;
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .hero-inner {
    padding: 100px 20px 56px;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .contact-box {
    padding: 36px 20px;
  }

  .service-hero-content {
    padding: 28px 20px;
  }
}