/*
Theme Name: Logic System
Theme URI: https://logic-system.com
Author: ロジックシステム株式会社
Description: Logic System Inc. corporate theme — AI consulting & business support
Version: 1.0.0
License: Proprietary
Text Domain: logicsystem
*/

/* ─────────────────────────────────────────
   ROOT VARIABLES
───────────────────────────────────────── */
:root {
  --bg:        #fafaf8;
  --bg-2:      #f2f1ed;
  --bg-dark:   #1c1c1a;
  --black:     #111110;
  --gray-d:    #4a4a47;
  --gray-m:    #8a8a86;
  --gray-l:    #c8c8c4;
  --accent:    #8a6e45;
  --accent-l:  #c4a882;
  --border:    #e2e2de;
  --serif:     'Cormorant Garamond', 'Noto Serif JP', serif;
  --sans:      'Noto Sans JP', sans-serif;
}

/* ─────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--black);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

/* ─────────────────────────────────────────
   NAV
───────────────────────────────────────── */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 200;
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 52px;
  background: rgba(250,250,248,0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--serif); font-size: 15px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--black); font-weight: 400;
}
.nav-links { display: flex; gap: 40px; list-style: none; }
.nav-links a {
  font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gray-m); transition: color 0.25s;
}
.nav-links a:hover,
.nav-links .current-menu-item a { color: var(--black); }
.nav-cta {
  font-size: 10.5px; letter-spacing: 0.12em;
  background: var(--black); color: var(--bg);
  padding: 10px 24px; border-radius: 30px;
  transition: background 0.25s, transform 0.2s;
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }

/* ─────────────────────────────────────────
   HERO
───────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px 52px 80px;
  position: relative; overflow: hidden;
}
.hero-bg-text {
  position: absolute; right: -20px; bottom: -40px;
  font-family: var(--serif);
  font-size: clamp(160px, 22vw, 320px);
  color: rgba(0,0,0,0.03);
  line-height: 1; pointer-events: none;
  font-weight: 400; letter-spacing: -0.02em;
  user-select: none;
}
.hero::before {
  content: '';
  position: absolute; left: 52px; top: 0; bottom: 0;
  width: 1px; background: var(--border);
}
.hero-inner {
  max-width: 900px; position: relative; z-index: 1;
  padding-left: 48px;
}
.hero-eyebrow {
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 32px;
  display: flex; align-items: center; gap: 16px;
  opacity: 0; animation: fadeUp 0.9s 0.3s forwards;
}
.hero-eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--accent); }
.hero-title {
  font-family: var(--serif);
  font-size: clamp(40px, 6vw, 84px);
  line-height: 1.2; font-weight: 300;
  margin-bottom: 40px; color: var(--black);
  opacity: 0; animation: fadeUp 0.9s 0.5s forwards;
}
.hero-divider {
  width: 48px; height: 1px; background: var(--accent-l);
  margin-bottom: 32px;
  opacity: 0; animation: fadeIn 0.9s 0.65s forwards;
}
.hero-lead {
  font-size: 15px; color: var(--gray-d);
  line-height: 2.1; max-width: 520px; margin-bottom: 52px;
  opacity: 0; animation: fadeUp 0.9s 0.7s forwards;
}
.hero-actions {
  display: flex; align-items: center; gap: 28px;
  opacity: 0; animation: fadeUp 0.9s 0.9s forwards;
}

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.btn-primary {
  display: inline-block; padding: 14px 40px;
  background: var(--black); color: var(--bg);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  border-radius: 30px; font-weight: 400;
  transition: background 0.3s, transform 0.25s;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-2px); }

.btn-ghost {
  font-size: 11px; letter-spacing: 0.1em;
  color: var(--gray-m);
  border-bottom: 1px solid var(--gray-l); padding-bottom: 2px;
  transition: color 0.25s, border-color 0.25s;
}
.btn-ghost:hover { color: var(--black); border-color: var(--black); }

.btn-light {
  display: inline-block; padding: 14px 44px;
  background: #f0efe8; color: var(--black);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  border-radius: 30px; font-weight: 500;
  transition: background 0.3s, transform 0.25s;
}
.btn-light:hover { background: var(--accent-l); transform: translateY(-2px); }

/* ─────────────────────────────────────────
   NUMBERS
───────────────────────────────────────── */
.numbers-section {
  background: var(--bg-dark);
  padding: 72px 52px;
  display: grid; grid-template-columns: repeat(3, 1fr);
}
.number-item {
  padding: 0 48px;
  border-right: 1px solid rgba(255,255,255,0.07);
  text-align: center;
}
.number-item:first-child { border-left: 1px solid rgba(255,255,255,0.07); }
.number-value {
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 64px);
  color: #f0efe8; font-weight: 300; line-height: 1;
  margin-bottom: 8px;
}
.number-value span { font-size: 0.5em; color: var(--accent-l); }
.number-label { font-size: 11px; color: rgba(240,239,232,0.45); letter-spacing: 0.1em; }

/* ─────────────────────────────────────────
   MISSION
───────────────────────────────────────── */
.mission-section {
  padding: 120px 52px;
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 240px 1fr; gap: 80px;
  align-items: start;
}
.section-label {
  font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--accent); padding-top: 10px;
}
.mission-text {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 300; line-height: 1.6; color: var(--black);
  margin-bottom: 32px;
}
.mission-body {
  font-size: 14px; color: var(--gray-d);
  line-height: 2.1; max-width: 560px;
  border-left: 2px solid var(--accent-l);
  padding-left: 24px;
}

/* ─────────────────────────────────────────
   SERVICES
───────────────────────────────────────── */
.services-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 52px;
}
.services-inner { max-width: 1200px; margin: 0 auto; }
.section-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 64px;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 300; color: var(--black);
  margin-top: 12px;
}
.section-link {
  font-size: 11px; letter-spacing: 0.1em; color: var(--gray-m);
  border-bottom: 1px solid var(--gray-l); padding-bottom: 3px;
  transition: color 0.25s, border-color 0.25s; white-space: nowrap;
}
.section-link:hover { color: var(--black); border-color: var(--black); }

.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--border);
}
.service-card {
  background: var(--bg); padding: 48px 40px;
  position: relative; overflow: hidden;
  display: block; transition: background 0.3s;
}
.service-card:hover { background: #fafaf6; }
.service-card::after {
  content: ''; position: absolute;
  bottom: 0; left: 0; width: 100%; height: 3px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.service-card:hover::after { transform: scaleX(1); }

.card-index {
  font-family: var(--serif); font-size: 80px; color: var(--bg-2);
  position: absolute; top: 16px; right: 24px;
  line-height: 1; font-weight: 300; transition: color 0.3s;
}
.service-card:hover .card-index { color: #eae9e4; }
.card-tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
}
.card-title {
  font-family: var(--serif); font-size: 24px; font-weight: 400;
  margin-bottom: 20px; line-height: 1.45; color: var(--black);
}
.card-body { font-size: 13px; color: var(--gray-d); line-height: 2; margin-bottom: 36px; }
.card-arrow {
  font-size: 11px; letter-spacing: 0.1em; color: var(--gray-m);
  display: flex; align-items: center; gap: 8px;
  transition: color 0.25s, gap 0.3s;
}
.service-card:hover .card-arrow { color: var(--accent); gap: 14px; }

/* ─────────────────────────────────────────
   SERVICE DETAIL PAGE
───────────────────────────────────────── */
.page-hero {
  padding: 160px 52px 100px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.page-hero::before {
  content: ''; position: absolute; left: 52px; top: 0; bottom: 0;
  width: 1px; background: var(--border);
}
.page-hero-inner { max-width: 900px; padding-left: 48px; }
.page-eyebrow {
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 24px;
  display: flex; align-items: center; gap: 16px;
}
.page-eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--accent); }
.page-title {
  font-family: var(--serif); font-size: clamp(36px, 5vw, 72px);
  font-weight: 300; line-height: 1.25; margin-bottom: 32px;
}
.page-lead { font-size: 15px; color: var(--gray-d); line-height: 2.2; max-width: 560px; }

.service-detail-section { padding: 100px 52px; border-bottom: 1px solid var(--border); }
.service-detail-inner { max-width: 1200px; margin: 0 auto; }

.service-plan {
  display: grid; grid-template-columns: 1fr 360px; gap: 80px;
  align-items: start; padding: 72px 0;
  border-bottom: 1px solid var(--border);
}
.service-plan:last-child { border-bottom: none; }

.plan-label {
  font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 16px;
}
.plan-title {
  font-family: var(--serif); font-size: clamp(26px, 3vw, 40px);
  font-weight: 300; margin-bottom: 24px; line-height: 1.35;
}
.plan-body { font-size: 14px; color: var(--gray-d); line-height: 2.2; max-width: 480px; }

.plan-price-card {
  background: var(--bg-2); border: 1px solid var(--border);
  padding: 40px 36px; border-radius: 4px;
  position: sticky; top: 100px;
}
.plan-price-label {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gray-m); margin-bottom: 12px;
}
.plan-price {
  font-family: var(--serif); font-size: 48px; font-weight: 300;
  color: var(--black); line-height: 1; margin-bottom: 6px;
}
.plan-price span { font-size: 0.45em; color: var(--gray-m); }
.plan-price-note { font-size: 12px; color: var(--gray-m); margin-bottom: 28px; line-height: 1.8; }
.plan-cta {
  display: block; width: 100%; padding: 14px;
  background: var(--black); color: var(--bg);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  text-align: center; border-radius: 30px;
  transition: background 0.3s;
}
.plan-cta:hover { background: var(--accent); }

/* FLOW */
.flow-section { padding: 100px 52px; background: var(--bg-2); }
.flow-inner { max-width: 1000px; margin: 0 auto; }
.flow-steps { margin-top: 64px; }
.flow-step {
  display: grid; grid-template-columns: 80px 1fr; gap: 40px;
  padding: 40px 0; border-bottom: 1px solid var(--border);
  align-items: start;
}
.flow-step:first-child { border-top: 1px solid var(--border); }
.step-num {
  font-family: var(--serif); font-size: 56px; font-weight: 300;
  color: var(--gray-l); line-height: 1;
}
.step-label {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 10px;
}
.step-title {
  font-family: var(--serif); font-size: 22px; font-weight: 400;
  margin-bottom: 12px; color: var(--black);
}
.step-body { font-size: 13px; color: var(--gray-d); line-height: 2; }

/* ─────────────────────────────────────────
   CTA SECTION
───────────────────────────────────────── */
.cta-section {
  background: var(--bg-dark);
  padding: 128px 52px; text-align: center;
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 600px; height: 600px; border-radius: 50%;
  border: 1px solid rgba(196,168,130,0.1);
}
.cta-section::after {
  content: ''; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 300px; height: 300px; border-radius: 50%;
  border: 1px solid rgba(196,168,130,0.15);
}
.cta-inner { position: relative; z-index: 1; max-width: 580px; margin: 0 auto; }
.cta-eyebrow {
  font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--accent-l); margin-bottom: 24px;
}
.cta-title {
  font-family: var(--serif); font-size: clamp(30px, 4vw, 54px);
  font-weight: 300; color: #f0efe8; margin-bottom: 16px; line-height: 1.3;
}
.cta-sub { font-size: 14px; color: rgba(240,239,232,0.45); margin-bottom: 48px; line-height: 2; }
.cta-note { margin-top: 18px; font-size: 11px; color: rgba(240,239,232,0.25); }

/* ─────────────────────────────────────────
   NEWS
───────────────────────────────────────── */
.news-section { padding: 100px 52px; border-bottom: 1px solid var(--border); }
.news-inner { max-width: 1200px; margin: 0 auto; }
.news-item {
  display: grid; grid-template-columns: 130px auto 1fr 20px;
  gap: 28px; align-items: center;
  padding: 22px 0; border-bottom: 1px solid var(--border);
  transition: opacity 0.2s;
}
.news-item:first-of-type { border-top: 1px solid var(--border); }
.news-item:hover { opacity: 0.6; }
.news-date { font-size: 12px; color: var(--gray-m); letter-spacing: 0.04em; }
.news-cat {
  font-size: 9.5px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--accent-l);
  padding: 3px 12px; border-radius: 20px; white-space: nowrap;
}
.news-title { font-size: 14px; color: var(--black); line-height: 1.6; }
.news-arrow { font-size: 13px; color: var(--gray-l); }

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.site-footer { background: var(--black); padding: 64px 52px 36px; }
.footer-top {
  display: grid; grid-template-columns: 1fr auto auto;
  gap: 80px; margin-bottom: 56px;
}
.footer-logo {
  font-family: var(--serif); font-size: 17px;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: #f0efe8; margin-bottom: 16px; font-weight: 300;
}
.footer-tagline { font-size: 12px; color: rgba(240,239,232,0.3); line-height: 2; }
.footer-nav h4 {
  font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent-l); margin-bottom: 20px;
}
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 12px; }
.footer-nav a {
  font-size: 12px; color: rgba(240,239,232,0.35); transition: color 0.2s;
}
.footer-nav a:hover { color: #f0efe8; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px; display: flex; justify-content: space-between;
}
.footer-copy { font-size: 11px; color: rgba(240,239,232,0.2); }

/* ─────────────────────────────────────────
   ANIMATIONS
───────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─────────────────────────────────────────
   WORDPRESS DEFAULTS
───────────────────────────────────────── */
.wp-block-image img { border-radius: 4px; }
.entry-content p { margin-bottom: 1.4em; font-size: 14px; color: var(--gray-d); line-height: 2.1; }

/* ─────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────── */
@media (max-width: 900px) {
  .site-header { padding: 18px 24px; }
  .nav-links { display: none; }
  .hero, .page-hero { padding: 120px 24px 80px; }
  .hero::before, .page-hero::before { left: 24px; }
  .hero-inner, .page-hero-inner { padding-left: 24px; }
  .numbers-section { grid-template-columns: 1fr; padding: 0; }
  .number-item { padding: 40px 24px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.07); }
  .number-item:first-child { border-left: none; border-top: 1px solid rgba(255,255,255,0.07); }
  .mission-section { grid-template-columns: 1fr; gap: 20px; padding: 72px 24px; }
  .services-section, .service-detail-section, .flow-section { padding: 72px 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 20px; }
  .service-plan { grid-template-columns: 1fr; gap: 40px; }
  .plan-price-card { position: static; }
  .flow-step { grid-template-columns: 48px 1fr; gap: 24px; }
  .step-num { font-size: 40px; }
  .cta-section { padding: 80px 24px; }
  .news-section { padding: 72px 24px; }
  .news-item { grid-template-columns: 1fr 20px; }
  .news-date, .news-cat { display: none; }
  .site-footer { padding: 48px 24px 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
}