/* ==========================================
   ABLE Technology - Design System & Styles
   ========================================== */

/* --- RESET & GLOBAL VARIABLES --- */
:root {
  --bg-primary: #0A0A0D;
  --bg-secondary: #111114;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-color-strong: rgba(255, 255, 255, 0.12);

  /* Brand Red Palette */
  --accent-red: #E63120;
  --accent-red-hover: #CC2218;
  --accent-red-light: #FF5247;
  --accent-red-glow: rgba(230, 49, 32, 0.18);

  /* Compatibility Aliases */
  --accent-blue: #E63120;
  --accent-blue-hover: #CC2218;
  --accent-blue-light: #FF5247;
  --accent-blue-glow: rgba(230, 49, 32, 0.18);

  --accent-teal: #22C7A9;
  --accent-teal-light: #5FE0C6;
  --accent-slate: #565656;

  --text-main: #F2F2F5;
  --text-muted: #9C9CA6;
  --text-sub: #6B6B76;

  --font-sans: 'Noto Sans KR', 'Sora', sans-serif;
  --font-heading: 'Sora', 'Noto Sans KR', sans-serif;

  --container-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: break-word;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

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

svg {
  max-width: 100%;
}

/* --- ANIMATIONS --- */
@keyframes pulseDot {
  0% {
    box-shadow: 0 0 0 0 rgba(230, 49, 32, 0.6);
  }
  70% {
    box-shadow: 0 0 0 9px rgba(230, 49, 32, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(230, 49, 32, 0);
  }
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-red);
  animation: pulseDot 2s ease-out infinite;
  display: inline-block;
}

/* --- COMMON COMPONENTS & UTILITIES --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 96px 28px;
  border-top: 1px solid var(--border-color);
}

.section-bg-alt {
  background-color: var(--bg-secondary);
}

.section-header {
  max-width: 700px;
  margin-bottom: 44px;
}

.chapter-tag {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-red-light);
  display: block;
}

.section-title {
  margin: 14px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.6vw, 2.05rem);
  font-weight: 800;
  line-height: 1.25;
}

.section-desc {
  margin: 14px 0 0;
  color: var(--text-muted);
  font-size: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 13px 24px;
  border-radius: 8px;
  transition: all 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.84rem;
}

.btn-primary {
  background: var(--accent-red);
  color: #ffffff;
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(230, 49, 32, 0.25);
}

.btn-primary:hover {
  background: var(--accent-red-hover);
  box-shadow: 0 6px 18px rgba(230, 49, 32, 0.4);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-main);
  background: transparent;
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

/* Bullet list */
.bullet-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 0.87rem;
  color: var(--text-muted);
}

.bullet-list li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.bullet-dot {
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--accent-red);
}

.bullet-dot-teal {
  background: var(--accent-teal);
}

.bullet-dot-light {
  background: var(--accent-red-light);
}

/* Cards */
.card {
  border: 1px solid var(--border-color-strong);
  border-radius: 14px;
  background: var(--bg-card);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: rgba(230, 49, 32, 0.3);
  background: var(--bg-card-hover);
}

/* --- NAVIGATION & BRAND LOGO --- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 13, 0.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 14px 28px;
  gap: 16px;
}

/* Logo Link & Inline SVG Styling */
.logo-link {
  display: inline-flex;
  align-items: center;
  padding: 2px 4px;
  background: transparent;
  border-radius: 6px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo-link:hover,
.logo-link:focus-visible {
  transform: translateY(-1px) scale(1.02);
  outline: none;
}

.logo-link:focus-visible {
  box-shadow: 0 0 0 2px var(--accent-red);
}

/* Sleek Compact Logo Height */
.logo-svg {
  height: 26px;
  width: auto;
  display: block;
}

/* SVG Internal Classes Reference & Hover Transitions */
.logo-svg .main-text {
  fill: #E63120;
  transition: fill 0.3s ease, filter 0.3s ease;
}

.logo-svg .slate-bar {
  fill: #2A2A2D;
  transition: fill 0.3s ease;
}

.logo-svg .sub-text,
.logo-svg .sub-text path {
  fill: #F2F2F5;
  transition: fill 0.3s ease;
}

/* Hover & Focus Transition States */
.logo-link:hover .main-text,
.logo-link:focus-visible .main-text {
  fill: #2A2A2D;
  filter: drop-shadow(0 0 8px rgba(86, 86, 86, 0.6));
}

.logo-link:hover .slate-bar,
.logo-link:focus-visible .slate-bar {
  fill: #F2F2F5;
}

.logo-link:hover .sub-text,
.logo-link:hover .sub-text path,
.logo-link:focus-visible .sub-text,
.logo-link:focus-visible .sub-text path {
  fill: #E63120;
}

.nav-links {
  display: flex;
  gap: 26px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 4px 0;
}

.nav-link {
  color: var(--text-muted);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text-main);
  outline: none;
}

/* --- HERO SECTION --- */
.hero-section {
  position: relative;
  overflow: hidden;
  padding: 88px 28px 64px;
  background: radial-gradient(700px 420px at 90% -10%, var(--accent-red-glow), transparent 60%);
}

.hero-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.9fr;
  gap: 52px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-red-light);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-red);
}

.hero-title {
  margin: 20px 0 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.2rem, 4.6vw, 3.7rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.hero-title .highlight {
  color: var(--accent-red);
}

.hero-desc {
  margin-top: 22px;
  font-size: 1.03rem;
  color: var(--text-muted);
  max-width: 52ch;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-visual-wrapper {
  position: relative;
  width: 100%;
  max-width: 429px;
  justify-self: center;
}

.hero-img-card {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color-strong);
  aspect-ratio: 4/5;
  position: relative;
  width: 100%;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.hero-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(10,10,13,0) 40%, rgba(10,10,13,0.55) 100%);
}

.hero-status-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(15, 15, 18, 0.85);
  border: 1px solid var(--border-color-strong);
  border-radius: 10px;
  padding: 11px 16px;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 9px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* --- STAT BAND --- */
.stat-band {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.stat-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 36px 28px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.stat-icon {
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(230, 49, 32, 0.12);
  border: 1px solid rgba(230, 49, 32, 0.3);
}

.stat-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent-red-light);
}

.stat-val {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.55rem;
}

.stat-val .highlight {
  color: var(--accent-red-light);
}

.stat-label {
  margin-top: 2px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- ABOUT SECTION --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 32px;
}

.info-card {
  padding: 26px;
}

.card-title-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.card-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: rgba(230, 49, 32, 0.12);
  border: 1px solid rgba(230, 49, 32, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent-red-light);
}

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

.info-table th {
  width: 32%;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.88rem;
  text-align: left;
  vertical-align: top;
  color: var(--text-muted);
  font-weight: 600;
}

.info-table td {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.88rem;
  text-align: left;
  vertical-align: top;
  color: var(--text-main);
}

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

.about-right-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.org-cards-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.org-card {
  border: 1px solid var(--border-color-strong);
  border-radius: 12px;
  background: var(--bg-card);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.org-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(230, 49, 32, 0.12);
  border: 1px solid rgba(230, 49, 32, 0.3);
}

.org-icon svg {
  width: 17px;
  height: 17px;
  stroke: var(--accent-red-light);
}

.org-title {
  font-size: 0.92rem;
  font-weight: 700;
}

.org-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.roles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.column-subtitle {
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-red-light);
  margin: 0 0 12px;
}

/* --- PROCESS DIAGRAM --- */
.process-section {
  background: var(--bg-secondary);
}

.process-scroll-wrapper {
  overflow-x: auto;
  padding-bottom: 12px;
  -webkit-overflow-scrolling: touch;
}

.process-container {
  position: relative;
  min-width: 860px;
  padding-top: 8px;
}

.process-line {
  position: absolute;
  top: 30px;
  left: 44px;
  right: 44px;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  z-index: 0;
}

.process-steps-flex {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.process-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--bg-secondary);
  border: 2px solid var(--accent-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--accent-red-light);
}

.step-num.active {
  background: var(--accent-red);
  color: #ffffff;
}

.step-title {
  font-size: 0.86rem;
  font-weight: 700;
  margin: 0;
}

.step-desc {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
  max-width: 118px;
}

/* --- BUSINESS PORTFOLIO --- */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.business-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.business-img-wrapper {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-primary);
  position: relative;
}

.business-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
  transition: transform 0.3s ease;
}

.business-card:hover .business-img {
  transform: scale(1.03);
}

.business-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 13px;
  flex: 1;
}

.business-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.business-desc {
  color: var(--text-muted);
  font-size: 0.87rem;
  margin: 0;
}

/* --- DIFFERENTIATION --- */
.diff-section {
  background: var(--bg-secondary);
}

.diagram-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 16px;
}

.venn-svg {
  width: 100%;
  max-width: 900px;
  height: auto;
}

.diff-grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.diff-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.diff-title {
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.dot-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-blue { background: var(--accent-red); }
.dot-teal { background: var(--accent-teal); }
.dot-gray { background: #A0AABE; }

.diff-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.diff-list li {
  padding-left: 16px;
  position: relative;
}

.diff-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-sub);
}

/* --- GLOBAL NETWORK --- */
.map-image-card {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color-strong);
  margin-bottom: 24px;
  width: 100%;
}

.map-img {
  width: 100%;
  height: auto;
  max-height: 412px;
  display: block;
  object-fit: cover;
}

.network-diagram-box {
  position: relative;
  border-radius: 16px;
  padding: 28px;
  border: 1px solid var(--border-color-strong);
  background-color: #0D0D10;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  overflow: hidden;
  margin-bottom: 24px;
}

.locations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.location-card {
  padding: 22px;
  border-radius: 12px;
  border: 1px solid var(--border-color-strong);
  background: var(--bg-card);
}

.location-card.hq-card {
  border-color: rgba(230, 49, 32, 0.35);
  background: rgba(230, 49, 32, 0.08);
}

.location-tag {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  padding: 4px 9px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  display: inline-block;
}

.hq-card .location-tag {
  background: rgba(230, 49, 32, 0.2);
  color: var(--accent-red-light);
}

.location-name {
  margin-top: 12px;
  font-size: 1rem;
  font-weight: 700;
}

.location-desc {
  margin-top: 8px;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- LOCATION & CONTACT --- */
.location-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: start;
}

.contact-banner {
  border-radius: 16px;
  border: 1px solid rgba(230, 49, 32, 0.25);
  background: rgba(230, 49, 32, 0.06);
  padding: 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.contact-title {
  margin-top: 14px;
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
  font-weight: 800;
  max-width: 22ch;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-info-item {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.contact-info-val {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
}

/* --- FOOTER --- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 32px 28px;
}

.footer-content {
  max-width: var(--container-width);
  margin: 0 auto;
  font-size: 0.8rem;
  color: var(--text-sub);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ==========================================
   RESPONSIVE LAYOUT (MOBILE & TABLET)
   ========================================== */

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-tags,
  .hero-actions {
    justify-content: center;
  }

  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

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

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

  .location-detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 56px 16px;
  }

  .nav-container {
    padding: 14px 16px;
    flex-wrap: wrap;
  }

  .logo-svg {
    height: 22px;
  }

  .nav-links {
    order: 3;
    width: 100%;
    gap: 16px;
    justify-content: flex-start;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
    margin-top: 4px;
  }

  .nav-cta {
    font-size: 0.78rem;
    padding: 8px 14px;
  }

  .hero-section {
    padding: 56px 16px 40px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-visual-wrapper {
    max-width: 100%;
  }

  .hero-img-card {
    height: auto;
    aspect-ratio: 4/5;
  }

  .stat-grid {
    grid-template-columns: 1fr;
    padding: 24px 16px;
  }

  .org-cards-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .network-diagram-box {
    padding: 12px;
  }

  .contact-banner {
    padding: 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .contact-info-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

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