/*
Theme Name: Monochrome Inc. 仮サイト
Theme URI: https://monochrome-inc.jp
Author: Monochrome Inc.
Author URI: https://monochrome-inc.jp
Description: HRデータベース開発とリクルーティングに特化した、ミニマルデザインのコーポレートテーマ　仮サイト
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: monochrome
Tags: corporate, minimal, black-and-white, custom-menu
*/

/* ============================================
   CSS Variables
============================================ */
:root {
  /* Mono Colors */
  --mono-50: #F9FAFB;
  --mono-100: #F3F4F6;
  --mono-200: #E5E7EB;
  --mono-300: #D1D5DB;
  --mono-400: #9CA3AF;
  --mono-500: #6B7280;
  --mono-600: #4B5563;
  --mono-700: #374151;
  --mono-800: #1F2937;
  --mono-900: #111827;
  --mono-950: #030712;
  
  /* Font Families */
  --font-sans: "Noto Sans JP", "Inter", sans-serif;
  --font-serif: "Noto Serif JP", serif;
  --font-english: "Inter", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: #000000;
  color: #FFFFFF;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
============================================ */
.font-sans { font-family: var(--font-sans); }
.font-serif { font-family: var(--font-serif); }
.font-english { font-family: var(--font-english); }

.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1.2; }
.text-6xl { font-size: 3.75rem; line-height: 1.1; }
.text-7xl { font-size: 4.5rem; line-height: 1.1; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }

.tracking-tight { letter-spacing: -0.025em; }
.tracking-tighter { letter-spacing: -0.05em; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.1em; }

.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }
.leading-loose { line-height: 2; }

.uppercase { text-transform: uppercase; }
.text-center { text-align: center; }
.text-justify { text-align: justify; }

/* ============================================
   Colors
============================================ */
.bg-black { background-color: #000000; }
.bg-white { background-color: #FFFFFF; }
.bg-mono-50 { background-color: var(--mono-50); }
.bg-mono-100 { background-color: var(--mono-100); }
.bg-mono-800 { background-color: var(--mono-800); }
.bg-mono-900 { background-color: var(--mono-900); }

.text-white { color: #FFFFFF; }
.text-black { color: #000000; }
.text-mono-300 { color: var(--mono-300); }
.text-mono-400 { color: var(--mono-400); }
.text-mono-500 { color: var(--mono-500); }
.text-mono-600 { color: var(--mono-600); }
.text-mono-700 { color: var(--mono-700); }
.text-mono-900 { color: var(--mono-900); }

/* ============================================
   Layout
============================================ */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 3rem;
  }
}

.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-7xl { max-width: 80rem; }

.min-h-screen { min-height: 100vh; }
.h-screen { height: 100vh; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-grow { flex-grow: 1; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-12 { gap: 3rem; }
.gap-16 { gap: 4rem; }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .md\:col-span-3 { grid-column: span 3 / span 3; }
  .md\:col-span-4 { grid-column: span 4 / span 4; }
  .md\:col-span-5 { grid-column: span 5 / span 5; }
  .md\:col-span-7 { grid-column: span 7 / span 7; }
  .md\:col-span-8 { grid-column: span 8 / span 8; }
  .md\:col-span-9 { grid-column: span 9 / span 9; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:col-span-4 { grid-column: span 4 / span 4; }
  .lg\:col-span-8 { grid-column: span 8 / span 8; }
}

/* ============================================
   Spacing
============================================ */
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }

.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }

.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.py-32 { padding-top: 8rem; padding-bottom: 8rem; }

.pt-4 { padding-top: 1rem; }
.pt-8 { padding-top: 2rem; }
.pt-20 { padding-top: 5rem; }
.pt-32 { padding-top: 8rem; }
.pb-16 { padding-bottom: 4rem; }

.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }

.mt-8 { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }
.mt-24 { margin-top: 6rem; }

.mr-6 { margin-right: 1.5rem; }

.mx-auto { margin-left: auto; margin-right: auto; }

.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }
.space-y-12 > * + * { margin-top: 3rem; }

.space-x-12 > * + * { margin-left: 3rem; }

@media (min-width: 768px) {
  .md\:px-12 { padding-left: 3rem; padding-right: 3rem; }
  .md\:py-32 { padding-top: 8rem; padding-bottom: 8rem; }
  .md\:py-40 { padding-top: 10rem; padding-bottom: 10rem; }
  .md\:py-48 { padding-top: 12rem; padding-bottom: 12rem; }
  .md\:pt-24 { padding-top: 6rem; }
  .md\:mb-24 { margin-bottom: 6rem; }
  .md\:leading-9 { line-height: 2.25rem; }
}

/* ============================================
   Borders
============================================ */
.border { border-width: 1px; border-style: solid; }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; }
.border-t { border-top-width: 1px; border-top-style: solid; }

.border-white\/5 { border-color: rgba(255, 255, 255, 0.05); }
.border-white\/10 { border-color: rgba(255, 255, 255, 0.1); }
.border-white\/20 { border-color: rgba(255, 255, 255, 0.2); }
.border-mono-200 { border-color: var(--mono-200); }
.border-mono-300 { border-color: var(--mono-300); }
.border-mono-700 { border-color: var(--mono-700); }
.border-mono-800 { border-color: var(--mono-800); }
.border-neutral-800 { border-color: #262626; }
.border-neutral-900 { border-color: #171717; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

/* ============================================
   Header
============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  background-color: rgba(0, 0, 0, 0.5);
  animation: headerFadeIn 0.8s ease-out forwards;
}

@media (min-width: 768px) {
  .site-header {
    padding: 1rem 3rem;
  }
}

@keyframes headerFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-logo {
  font-family: var(--font-english);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.05em;
  color: #FFFFFF;
  transition: opacity 0.3s ease;
  width: 180px;
}

.site-logo:hover {
  opacity: 0.8;
}

.main-nav {
  display: none;
}

@media (min-width: 768px) {
  .main-nav {
    display: flex;
    gap: 3rem;
  }
}

.main-nav a {
  font-family: var(--font-english);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mono-400);
  transition: color 0.3s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: #FFFFFF;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 24px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 51;
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu-toggle span:nth-child(1) {
  margin-bottom: 6px;
}

.mobile-menu-toggle span:nth-child(3) {
  margin-top: 6px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  background-color: #000000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-overlay nav {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

.mobile-nav-overlay a {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: #FFFFFF;
}

/* ============================================
   Hero Section
============================================ */
.hero-section {
  position: relative;
  height: calc(100vh - 58.3px);
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: #000000;
  color: #FFFFFF;
}

@media (max-width: 768px) {
  .hero-section .container .font-serif {
    font-size: 38px !important;
    text-align: left;
  }
}


.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.4;
  pointer-events: none;
}

.hero-bg svg {
  width: 800px;
  height: 600px;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 1rem;
  max-width: 56rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 500;
  margin-bottom: 2rem;
  letter-spacing: 0.05em;
  line-height: 1.3;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 4.5rem;
  }
}

.hero-divider {
  height: 1px;
  width: 6rem;
  background-color: rgba(255, 255, 255, 0.3);
  margin: 0 auto 2rem;
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--mono-300);
  letter-spacing: 0.1em;
  font-weight: 300;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 1rem;
  }
}

.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-english);
  font-size: 0.75rem;
  color: var(--mono-500);
  letter-spacing: 0.1em;
  animation: fadeIn 1s ease 2s forwards;
  opacity: 0;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* SVG Path Animation */
.hero-path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawPath 3s ease-in-out forwards;
}

.hero-path-delayed {
  animation-delay: 0.5s;
}

.hero-path-echo {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawPath 4s ease-out forwards;
}

.hero-path-echo-1 {
  animation-delay: 1s;
}

.hero-path-echo-2 {
  animation-delay: 1.5s;
}

@keyframes drawPath {
  to {
    stroke-dashoffset: 0;
  }
}

/* ============================================
   About Section
============================================ */
.about-section {
  position: relative;
  width: 100%;
  background-color: #FFFFFF;
  color: #000000;
  padding: 8rem 1.5rem;
}

@media (min-width: 768px) {
  .about-section {
    padding: 12rem 3rem;
  }
}

.about-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .about-inner {
    grid-template-columns: 1fr 2fr;
    gap: 6rem;
  }
}

.about-left h3 {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--mono-400);
  margin-bottom: 1rem;
}

.about-left p {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 2;
  color: var(--mono-600);
}

.about-right h2 {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 500;
  margin-bottom: 3rem;
  line-height: 1.6;
}

@media (min-width: 768px) {
  .about-right h2 {
    font-size: 2.25rem;
  }
}

.about-right .about-text {
  color: var(--mono-700);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 2;
  letter-spacing: 0.025em;
  text-align: justify;
}

.about-right .about-text p + p {
  margin-top: 2rem;
}

/* ============================================
   Value Proposition Section
============================================ */
.value-section {
  width: 100%;
  background-color: #FFFFFF;
  padding: 6rem 1.5rem 8rem;
}

@media (min-width: 768px) {
  .value-section {
    padding: 8rem 3rem;
  }
}

.value-inner {
  max-width: 80rem;
  margin: 0 auto;
}

.value-title {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 500;
  letter-spacing: 0.025em;
  margin-bottom: 4rem;
  color: #000000;
}

@media (min-width: 768px) {
  .value-title {
    margin-bottom: 6rem;
  }
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .value-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  position: relative;
  height: 100%;
  padding: 2rem;
  background-color: var(--mono-50);
  border-radius: 1rem;
  border: 1px solid var(--mono-200);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.5s ease;
}

@media (min-width: 768px) {
  .value-card {
    padding: 2.5rem;
  }
}

.value-card:hover {
  border-color: var(--mono-400);
}

.value-card-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 1.5rem;
  color: var(--mono-900);
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.value-card:hover .value-card-icon {
  opacity: 1;
}

.value-card-subtitle {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mono-400);
  margin-bottom: 0.5rem;
}

.value-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--mono-900);
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .value-card-title {
    font-size: 1.5rem;
  }
}

.value-card-desc {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--mono-600);
  line-height: 1.625;
}

@media (min-width: 768px) {
  .value-card-desc {
    font-size: 1rem;
  }
}

/* ============================================
   Page Header
============================================ */
.page-header {
  width: 100%;
  background-color: #000000;
  color: #FFFFFF;
  padding: 8rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-header {
    padding: 10rem 3rem 4rem;
  }
}

.page-header-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  pointer-events: none;
  background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCI+CjxwYXRoIGQ9Ik0wIDBoNDB2NDBIMHoiIGZpbGw9Im5vbmUiLz4KPHBhdGggZD0iTTAgNDBMNDAgMCIgc3Ryb2tlPSIjMzMzIiBzdHJva2Utb3BhY2l0eT0iMC4zIiBzdHJva2Utd2lkdGg9IjAuNSIvPgo8L3N2Zz4=");
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 500;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .page-header h1 {
    font-size: 3.75rem;
  }
}

/* ============================================
   Company Page
============================================ */
.company-content {
  max-width: 64rem;
  margin: 0 auto;
  padding: 6rem 1.5rem 8rem;
}

@media (min-width: 768px) {
  .company-content {
    padding: 8rem 3rem;
  }
}

.company-section {
  margin-bottom: 8rem;
}

.company-section:last-child {
  margin-bottom: 0;
}

.section-label {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--mono-400);
  margin-bottom: 2rem;
}

.ceo-message {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .ceo-message {
    grid-template-columns: 5fr 7fr;
  }
}

.ceo-message h3 {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.ceo-message .message-text {
  color: var(--mono-600);
  font-weight: 300;
  line-height: 2;
  text-align: justify;
}

.ceo-message .message-text p + p {
  margin-top: 1.5rem;
}

.ceo-signature {
  margin-top: 2rem;
  font-family: var(--font-serif);
  color: #000000;
}

.profile-table {
  border-top: 1px solid var(--mono-200);
}

.profile-row {
  display: grid;
  grid-template-columns: 1fr;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--mono-200);
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .profile-row {
    grid-template-columns: 1fr 3fr;
    gap: 0;
  }
}

.profile-row dt {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--mono-900);
}

.profile-row dd {
  font-size: 0.875rem;
  color: var(--mono-600);
  font-weight: 300;
}

/* ============================================
   Services Page
============================================ */
.services-header {
  padding-top: 8rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .services-header {
    padding-top: 10rem;
  }
}

.services-header h1 {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .services-header h1 {
    font-size: 3.75rem;
  }
}

.services-header p {
  color: var(--mono-400);
  font-weight: 300;
  max-width: 42rem;
}

.service-section {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

@media (min-width: 768px) {
  .service-section {
    padding: 3rem 3rem;
  }
}

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

.service-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .service-inner {
    grid-template-columns: 1fr 1fr;
  }
}

.service-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--mono-900);
  border-radius: 0.5rem;
  border: 1px solid var(--mono-800);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.service-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 25%, rgba(255,255,255,0.05) 50%, transparent 75%, transparent 100%);
  background-size: 250% 250%;
  background-position: -100% 0;
  transition: background-position 1.5s ease-in-out;
}

.service-image:hover::before {
  background-position: 200% 0;
}

.service-image svg {
  width: 64px;
  height: 64px;
  color: var(--mono-700);
}

.service-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 9999px;
  color: var(--mono-300);
  margin-bottom: 1.5rem;
}

.service-content h2 {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.service-content > p {
  color: var(--mono-400);
  line-height: 1.625;
  margin-bottom: 2rem;
  font-weight: 300;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--mono-300);
}

.service-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: #FFFFFF;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================
   News Page
============================================ */
.news-page {
  min-height: 100vh;
  background-color: #000000;
  color: #FFFFFF;
}

.news-content {
  max-width: 64rem;
  margin: 0 auto;
  padding: 8rem 1.5rem 10rem;
}

@media (min-width: 768px) {
  .news-content {
    padding: 10rem 3rem;
  }
}

.news-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 500;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .news-title {
    font-size: 3.75rem;
    margin-bottom: 6rem;
  }
}

.news-list {
  border-top: 1px solid var(--mono-800);
}

.news-item {
  display: flex;
  flex-direction: column;
  padding: 2rem 0;
  border-bottom: 1px solid var(--mono-800);
  transition: background-color 0.3s ease;
}

@media (min-width: 768px) {
  .news-item {
    flex-direction: row;
    align-items: center;
  }
}

.news-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.news-meta {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .news-meta {
    width: 16rem;
    margin-bottom: 0;
  }
}

.news-date {
  font-family: var(--font-english);
  font-size: 0.875rem;
  color: var(--mono-500);
  margin-right: 1.5rem;
}

.news-category {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--mono-700);
  border-radius: 0.25rem;
  color: var(--mono-300);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.news-item:hover .news-category {
  border-color: #FFFFFF;
  color: #FFFFFF;
}

.news-item-title {
  flex-grow: 1;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 300;
  color: var(--mono-200);
  transition: color 0.3s ease;
}

@media (min-width: 768px) {
  .news-item-title {
    font-size: 1.125rem;
  }
}

.news-item:hover .news-item-title {
  color: #FFFFFF;
}

.news-pagination {
  margin-top: 4rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.news-pagination a,
.news-pagination span {
  padding: 0.5rem 1rem;
  border: 1px solid var(--mono-700);
  border-radius: 0.25rem;
  font-size: 0.875rem;
  transition: border-color 0.3s ease;
}

.news-pagination a:hover {
  border-color: #FFFFFF;
}

.news-pagination .current {
  background-color: #FFFFFF;
  color: #000000;
  border-color: #FFFFFF;
}

/* ============================================
   Single Post (News Detail)
============================================ */
.single-post {
  min-height: 100vh;
  background-color: #FFFFFF;
  color: #000000;
}

.single-featured-image {
  width: 100%;
  height: 16rem;
  background-color: var(--mono-100);
}

@media (min-width: 768px) {
  .single-featured-image {
    height: 24rem;
  }
}

.single-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.single-content {
  max-width: 48rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

@media (min-width: 768px) {
  .single-content {
    padding: 6rem 3rem;
  }
}

.single-back {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--mono-500);
  margin-bottom: 3rem;
  transition: color 0.3s ease;
}

.single-back:hover {
  color: #000000;
}

.single-header {
  margin-bottom: 3rem;
}

.single-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.single-meta time {
  font-size: 0.875rem;
  color: var(--mono-500);
}

.single-meta .category {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--mono-300);
  border-radius: 0.25rem;
}

.single-title {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 500;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .single-title {
    font-size: 2.25rem;
  }
}

.single-body {
  font-family: var(--font-sans);
  line-height: 2;
  color: var(--mono-700);
}

.single-body p {
  margin-bottom: 1.5rem;
}

.single-body h2,
.single-body h3,
.single-body h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.single-body h2 {
  font-size: 1.5rem;
}

.single-body h3 {
  font-size: 1.25rem;
}

.single-body a {
  color: #000000;
  text-decoration: underline;
}

.single-body a:hover {
  text-decoration: none;
}

.single-body img {
  border-radius: 0.5rem;
  margin: 2rem 0;
}

.single-body blockquote {
  border-left: 3px solid #000000;
  padding-left: 1.5rem;
  color: var(--mono-600);
  font-style: italic;
  margin: 2rem 0;
}

.single-body ul,
.single-body ol {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.single-body li {
  margin-bottom: 0.5rem;
  list-style: disc;
}

.single-body ol li {
  list-style: decimal;
}

/* ============================================
   Contact Page
============================================ */
.contact-page {
  min-height: 100vh;
  background-color: #FFFFFF;
  color: #000000;
  display: flex;
  flex-direction: column;
}

.contact-content {
  flex-grow: 1;
  width: 100%;
  max-width: 48rem;
  margin: 0 auto;
  padding: 6rem 1.5rem 8rem;
}

@media (min-width: 768px) {
  .contact-content {
    padding: 8rem 3rem;
  }
}

.contact-content h1 {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .contact-content h1 {
    font-size: 3rem;
  }
}

.contact-intro {
  color: var(--mono-500);
  font-weight: 300;
  margin-bottom: 4rem;
  line-height: 1.8;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  display: block;
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--mono-300);
  background: transparent;
  padding: 1rem 0;
  font-size: 1rem;
  color: #000000;
  transition: border-color 0.3s ease;
  border-radius: 0;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #000000;
}

.form-group label {
  position: absolute;
  left: 0;
  top: 1rem;
  color: var(--mono-400);
  font-size: 1rem;
  transition: all 0.3s ease;
  pointer-events: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -0.75rem;
  font-size: 0.75rem;
  color: #000000;
}

.form-group textarea {
  resize: none;
  min-height: 100px;
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-english);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #000000;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: opacity 0.3s ease;
}

.submit-btn:hover {
  opacity: 0.6;
}

.submit-btn svg {
  transition: transform 0.3s ease;
}

.submit-btn:hover svg {
  transform: translateX(8px);
}

/* ============================================
   Privacy Page
============================================ */
.privacy-page {
  min-height: 100vh;
  background-color: #FFFFFF;
  color: #000000;
}

.privacy-content {
  max-width: 56rem;
  margin: 0 auto;
  padding: 8rem 1.5rem 10rem;
}

@media (min-width: 768px) {
  .privacy-content {
    padding: 10rem 3rem;
  }
}

.privacy-content h1 {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 500;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .privacy-content h1 {
    font-size: 3rem;
  }
}

.privacy-body {
  color: var(--mono-700);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 2;
}

@media (min-width: 768px) {
  .privacy-body {
    font-size: 1rem;
  }
}

.privacy-body section {
  margin-bottom: 3rem;
}

.privacy-body h2 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #000000;
  margin-bottom: 1rem;
}

.privacy-body ul {
  padding-left: 1.5rem;
  margin-top: 0.5rem;
}

.privacy-body li {
  list-style: disc;
  margin-bottom: 0.5rem;
}

/* ============================================
   Footer
============================================ */
.site-footer {
  background-color: #000000;
  color: #FFFFFF;
  padding: 6rem 1.5rem;
  border-top: 1px solid #171717;
  margin-top: auto;
}

@media (min-width: 768px) {
  .site-footer {
    padding: 6rem 3rem;
  }
}

.footer-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.footer-brand a {
  font-family: var(--font-english);
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  display: block;
  margin-bottom: 1.5rem;
  transition: opacity 0.3s ease;
}

.footer-brand a:hover {
  opacity: 0.8;
}

.footer-address {
  font-style: normal;
  font-size: 0.875rem;
  color: var(--mono-400);
  line-height: 2;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-nav {
    flex-direction: row;
    gap: 4rem;
  }
}

.footer-nav a {
  font-family: var(--font-english);
  font-size: 0.875rem;
  color: var(--mono-500);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  max-width: 80rem;
  margin: 6rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid #171717;
}

.footer-copyright {
  font-family: var(--font-english);
  font-size: 0.75rem;
  color: var(--mono-600);
}

/* ============================================
   Scroll Reveal Animation
============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

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

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

.overflow-hidden { overflow: hidden; }
.pointer-events-none { pointer-events: none; }

.opacity-0 { opacity: 0; }
.opacity-40 { opacity: 0.4; }
.opacity-70 { opacity: 0.7; }

.transition-colors { transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease; }
.transition-opacity { transition: opacity 0.3s ease; }
.transition-transform { transition: transform 0.3s ease; }

.hover\:opacity-80:hover { opacity: 0.8; }
.hover\:text-white:hover { color: #FFFFFF; }

/* Hidden classes for responsive */
@media (max-width: 767px) {
  .md\:hidden { display: block; }
}

@media (min-width: 768px) {
  .hidden.md\:flex { display: flex; }
  .md\:hidden { display: none; }
  .md\:flex-row { flex-direction: row; }
  .md\:items-center { align-items: center; }
  .md\:w-64 { width: 16rem; }
  .md\:mb-0 { margin-bottom: 0; }
  .md\:gap-0 { gap: 0; }
  .md\:gap-16 { gap: 4rem; }
}

@media (min-width: 1024px) {
  .lg\:order-1 { order: 1; }
  .lg\:order-2 { order: 2; }
  .lg\:gap-24 { gap: 6rem; }
}
/* 20251128追記 */
.footer-logo {
  width: 230px;
}
@media (max-width: 768px) {
  .footer-nav {
    gap: 1rem;
  }
  .footer-bottom {
    margin-top: 1rem;
  }
}

/* ============================================
   Recruit Page Styles
   Add this to your style.css
============================================ */

/* Recruit Hero Section */
.recruit-hero {
    position: relative;
    min-height: calc(100vh - 58.3px);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    color: #fff;
    overflow: hidden;
}

.recruit-hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.08;
}

.recruit-hero-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid #fff;
    border-radius: 50%;
}

.recruit-hero-circle-1 {
    width: 800px;
    height: 800px;
}

.recruit-hero-circle-2 {
    width: 500px;
    height: 500px;
}

.recruit-hero-circle-3 {
    width: 200px;
    height: 200px;
}

.recruit-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
}

.recruit-hero-label {
    font-family: var(--font-english);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--mono-400);
    margin-bottom: 1.5rem;
}

.recruit-hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 500;
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

.recruit-hero-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.1em;
    font-weight: 300;
}

.recruit-scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-english);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.4);
}

/* Recruit Sections */
.recruit-section {
    padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
    .recruit-section {
        padding: 8rem 3rem;
    }
}

.recruit-section-white {
    background-color: #fff;
    color: #000;
}

.recruit-section-gray {
    background-color: #f9fafb;
    color: #000;
}

.recruit-section-black {
    background-color: #000;
    color: #fff;
}

.recruit-section-cta {
    background-color: #000;
    color: #fff;
    padding: 6rem 1.5rem;
}

.recruit-section-label {
    font-family: var(--font-english);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--mono-400);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.recruit-section-title {
    font-size: 1.875rem;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .recruit-section-title {
        font-size: 2.25rem;
    }
}

/* Message Section */
.recruit-message-content {
    max-width: 800px;
    margin: 0 auto;
}

.recruit-message-content p {
    color: var(--mono-600);
    font-weight: 300;
    line-height: 2;
    margin-bottom: 1.5rem;
}

.recruit-message-content p:last-child {
    margin-bottom: 0;
}

/* Features Grid */
.recruit-features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .recruit-features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.recruit-feature-card {
    background: #fff;
    padding: 2.5rem 2rem;
    border: 1px solid var(--mono-200);
    border-radius: 0.5rem;
}

.recruit-section-gray .recruit-feature-card {
    background: #fff;
}

.recruit-feature-number {
    font-family: var(--font-english);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--mono-200);
    margin-bottom: 1.5rem;
}

.recruit-feature-title {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: #000;
}

.recruit-feature-desc {
    font-size: 0.875rem;
    color: var(--mono-600);
    line-height: 1.8;
}

/* Positions Grid */
.recruit-positions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .recruit-positions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.recruit-position-simple {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 2.5rem;
    transition: border-color 0.3s ease;
}

.recruit-position-simple:hover {
    border-color: rgba(255, 255, 255, 0.25);
}

.recruit-position-tag {
    display: inline-block;
    font-family: var(--font-english);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 0.375rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 9999px;
    color: var(--mono-300);
    margin-bottom: 1.25rem;
}

.recruit-position-title {
    font-size: 1.375rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: #fff;
}

.recruit-position-desc {
    font-size: 0.9375rem;
    color: var(--mono-400);
    line-height: 1.8;
}

/* CTA Button */
.recruit-cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: #fff;
    color: #000;
    padding: 1.25rem 3rem;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    border-radius: 0.25rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.recruit-cta-button:hover {
    background: var(--mono-200);
}

.recruit-cta-button svg {
    transition: transform 0.3s ease;
}

.recruit-cta-button:hover svg {
    transform: translateX(4px);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .recruit-hero-title {
        text-align: left;
    }
    
    .recruit-hero-content {
        text-align: left;
        padding: 0 1rem;
    }
    
    .recruit-hero-subtitle {
        text-align: left;
    }
    
    .recruit-section-title {
        font-size: 1.5rem;
    }
    
    .recruit-position-simple {
        padding: 2rem 1.5rem;
    }
    
    .recruit-cta-button {
        width: 100%;
        justify-content: center;
    }
}