/* === AInexus — AI Operating Engine Styles === */
:root { --color-accent: #3373C4; }

/* GNB override */
.gnb { background: rgba(51, 115, 196, 0.92); }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-white);
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(51, 115, 196, 0.35) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(51, 115, 196, 0.2) 0%, transparent 40%);
}

/* Grid pattern overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 195, 137, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 195, 137, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
  padding: 0 24px;
}


.hero-kicker {
  font-family: var(--font-en);
  font-size: 25px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-kicker::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--color-blue);
}

.hero h1 {
  font-family: var(--font-en);
  font-size: var(--text-hero);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 24px;
}

.hero h1 .green { color: var(--color-blue); }

.hero-desc {
  font-size: clamp(16px, 2vw, 20px);
  color: #666;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
}

/*Tech Stack — 7-Layer*/
.tech-stack {
  background: #eef8fe;
  color: var(--color-black);
  position: relative;
}

/*
.tech-stack::before {
  content: '';
  position: absolute;
  top: -120px;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, var(--color-white), #eef8fe);
  pointer-events: none;
} */

.layers {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.layer {
  border: 1px solid var(--color-gray-700);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s var(--ease);
}

.layer:hover,
.layer.active {
  border-color: rgba(51, 115, 196, 0.4);
  box-shadow: 0 0 20px rgba(51, 115, 196, 0.08);
}

.layer:hover {
  background: rgba(51, 115, 196, 0.04);
}

.layer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.3s var(--ease);
}


.layer-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.layer-num {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 800;
  color: var(--color-blue);
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--color-blue);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.layer-name {
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 700;
}

.layer-toggle {
  color: var(--color-gray-500);
  transition: transform 0.3s var(--ease);
}

.layer.active .layer-toggle {
  transform: rotate(180deg);
  color: var(--color-blue);
}

.layer-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.layer.active .layer-body {
  max-height: 200px;
}

.layer-body-inner {
  padding: 0 24px 20px;
  padding-left: 68px;
  font-size: var(--text-small);
  color: var(--color-gray-400);
  line-height: 1.7;
}

/* Brand Architecture */
.architecture {
  background: #eef8fe;
  color: var(--color-black);
}

.arch-vision {
  color: rgba(0, 0, 0, 0.5) !important;
  font-size: var(--text-small) !important;
}

/* Master Brand */
.arch-master {
  text-align: center;
  margin-bottom: 32px;
}

.arch-master-label {
  display: inline-block;
  padding: 16px 40px;
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-black);
  border: none;
  border-radius: var(--radius);
  background: #b0bccb;
  letter-spacing: 0.02em;
}

/* 3-Column Grid */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: stretch;
}

/* M / X Line Boxes */
.arch-line {
  border-radius: var(--radius-lg);
  padding: 28px;
}

.arch-m-line {
  border: 2px solid #59708c;
  background: var(--color-white);
}

.arch-x-line {
  border: 2px solid #59708c;
  background: var(--color-white);
}

.arch-line-header {
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 800;
  color: var(--color-black);
  margin-bottom: 24px;
  letter-spacing: 0.03em;
}

.arch-items {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.arch-items li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 16px;
  border-left: 2px solid var(--color-gray-700);
}

.arch-m-line .arch-items li {
  border-left-color: rgba(168, 85, 247, 0.4);
}

.arch-x-line .arch-items li {
  border-left-color: rgba(56, 189, 248, 0.4);
}

.arch-item-name {
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-black);
}

.arch-item-desc {
  font-size: 13px;
  color: var(--color-gray-400);
  line-height: 1.5;
}

/* Center Synergy */
.arch-synergy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
  padding: 28px 24px;
}

.arch-synergy-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-black);
  text-align: center;
  margin-bottom: 4px;
}

.arch-synergy-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.arch-dot {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-blue);
  margin-top: 5px;
}

.arch-synergy-item strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-green);
  margin-bottom: 4px;
}

.arch-synergy-item p {
  font-size: 13px;
  color: var(--color-gray-400);
  line-height: 1.5;
}

/* Legacy vs Solution */
.kpi {
  background: #eef8fe;
  color: var(--color-black);
}

.compare-table {
  max-width: 960px;
  margin: 0 auto;
  border: 1px solid rgba(51, 115, 196, 0.4);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
}

.compare-row {
  display: grid;
  grid-template-columns: 140px 1fr 1fr;
  border-bottom: 1px solid rgba(51, 115, 196, 0.15);
}

.compare-row:last-child {
  border-bottom: none;
}

.compare-cell {
  padding: 16px 20px;
  font-size: var(--text-small);
  line-height: 1.6;
}

.compare-header {
  background: rgba(51, 115, 196, 0.06);
}

.compare-header .compare-cell {
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.compare-cat {
  font-weight: 700;
  color: var(--color-black);
  background: rgba(51, 115, 196, 0.03);
  border-right: 1px solid rgba(51, 115, 196, 0.15);
}

.compare-legacy {
  color: var(--color-gray-400);
  border-right: 1px solid rgba(51, 115, 196, 0.15);
}

.compare-solution {
  color: var(--color-blue);
}

.compare-row:not(.compare-header):hover {
  background: rgba(51, 115, 196, 0.04);
}



/* CEO */
.ceo {
  background: #eef8fe;
  color: var(--color-black);
}

.ceo-content {
  max-width: 800px;
  margin: 0 auto;
}

.ceo-top {
  display: flex;
  gap: 36px;
  align-items: center;
  margin-bottom: 48px;
  background: var(--color-white);
  border: 1px solid rgba(51, 115, 196, 0.4);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.ceo-photo {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(51, 115, 196, 0.4);
}

.ceo-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ceo-greeting p {
  font-size: clamp(15px, 1.8vw, 18px);
  color: rgba(0, 0, 0, 0.7);
  line-height: 1.8;
  margin-bottom: 16px;
}

.ceo-greeting strong {
  color: var(--color-blue);
  font-weight: 700;
}

.ceo-profile-title {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-green);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-gray-700);
}

.ceo-career {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ceo-career li {
  font-size: var(--text-small);
  color: rgba(0, 0, 0, 0.7);
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
}

.ceo-career li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-green);
}

.ceo-sub {
  display: block;
  color: var(--color-gray-500);
  font-size: 13px;
  margin-top: 4px;
}

/* Inquiry Form */
.inquiry {
  background: #eef8fe;
  color: var(--color-black);
}

.inquiry-form {
  max-width: 700px;
  margin: 0 auto;
}

.inquiry-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.inquiry .form-input,
.inquiry .form-textarea {
  background: var(--color-white);
  border-color: rgba(51, 115, 196, 0.4);
  color: var(--color-black);
}

.inquiry .form-input:focus,
.inquiry .form-textarea:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(51, 115, 196, 0.15);
}

.inquiry .form-label {
  color: var(--color-gray-300);
}

/* Footer */
.footer {
  background: #2b2b2b;
  color: rgba(255, 255, 255, 0.5);
  padding: 60px 0 32px;
  border-top: 1px solid var(--color-gray-800);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand-text {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-desc {
  font-size: var(--text-small);
  line-height: 1.7;
  max-width: 300px;
}

.footer-title {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: var(--text-small);
  transition: color var(--duration) var(--ease);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: var(--text-caption);
  text-align: center;
}

.footer-company {
  color: rgba(255, 255, 255, 0.6);
  font-weight: 600;
}

.footer-addresses {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 11px;
}

/* === Responsive === */
@media (max-width: 768px) {
  .hero { text-align: center; }
  .hero-kicker { justify-content: center; }
  .hero-buttons { justify-content: center; flex-wrap: wrap; }
  .arch-grid { grid-template-columns: 1fr; }
  .arch-synergy { order: -1; padding: 24px 0; }
  .compare-row { grid-template-columns: 100px 1fr 1fr; }
  .compare-cell { padding: 12px 14px; font-size: 13px; }
  .inquiry-row { grid-template-columns: 1fr; }
  .ceo-top { flex-direction: column; align-items: center; text-align: center; padding: 24px; }
  .ceo-photo { width: 120px; height: 120px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 360px) {
  .compare-row { grid-template-columns: 80px 1fr 1fr; }
  .compare-cell { padding: 10px 10px; font-size: 12px; }
  .footer-inner { grid-template-columns: 1fr; }
}