/* ========================================
   OneFootball Company Website - Styles
   Professional, clean, corporate design
   ======================================== */

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

:root {
  --primary: #0D9B6A;
  --primary-dark: #087A53;
  --primary-light: #E8F7F1;
  --accent: #1A73E8;
  --bg: #FFFFFF;
  --bg-alt: #FAFBFC;
  --bg-dark: #09101E;
  --bg-dark-card: #111B2E;
  --bg-dark-hover: #162038;
  --text: #111827;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --text-dark: #E5E7EB;
  --text-dark-muted: #9CA3AF;
  --border: #E5E7EB;
  --border-dark: #1F2937;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.07);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --font: 'Noto Sans KR', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease);
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.text-accent {
  color: var(--primary);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--transition);
}
.nav.scrolled {
  background: rgba(9,16,30,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-dark);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 1.3rem;
}
.logo-icon { font-size: 1.6rem; }
.nav-logo-img { height: 28px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}
.nav-links a:hover { color: #fff; }
.nav-badge-link {
  background: rgba(255,255,255,0.15) !important;
  color: #fff !important;
  padding: 4px 14px !important;
  border-radius: 20px;
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.02em;
  border: 1px solid rgba(255,255,255,0.3);
  transition: var(--transition);
}
.nav-badge-link:hover {
  background: rgba(255,255,255,0.25) !important;
  color: #fff !important;
}
.nav-cta {
  padding: 8px 20px !important;
  background: var(--primary) !important;
  color: #fff !important;
  border-radius: 100px;
  font-weight: 600 !important;
}
.nav-cta:hover {
  background: var(--primary-dark) !important;
}
.nav-toggle { display: none; flex-direction: column; gap: 5px; }
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: #fff; border-radius: 2px; transition: var(--transition);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(13,155,106,0.3);
}
.btn-white {
  background: #fff;
  color: var(--text);
}
.btn-white:hover {
  background: #F0FDF4;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn-outline-white {
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
}
.btn-outline-white:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.05);
}
.btn-full { width: 100%; }
.btn-sm-accent {
  display: inline-block;
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-xs);
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition);
}
.btn-sm-accent:hover { background: var(--primary-dark); }
.btn-sm-outline {
  display: inline-block;
  padding: 10px 24px;
  border: 1.5px solid var(--border-dark);
  color: var(--text-dark-muted);
  border-radius: var(--radius-xs);
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition);
}
.btn-sm-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-dark);
  overflow: hidden;
  padding: 120px 24px 80px;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(13,155,106,0.3), transparent 70%);
  top: -20%; left: -10%;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(26,115,232,0.2), transparent 70%);
  bottom: -10%; right: -5%;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}
.hero-eyebrow {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid rgba(13,155,106,0.3);
  border-radius: 100px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 32px;
}
.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.hero-highlight {
  background: linear-gradient(135deg, var(--primary), #34D399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* --- Numbers Section --- */
.numbers-section {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-dark);
  padding: 48px 0;
}
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.number-value {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 4px;
  font-family: 'Inter', var(--font);
}
.number-value.special {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.number-label {
  font-size: 0.85rem;
  color: var(--text-dark-muted);
  font-weight: 500;
}

/* --- Tag (section label) --- */
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
  background: var(--primary-light);
  color: var(--primary);
}
.section-dark .tag {
  background: rgba(13,155,106,0.12);
}

/* --- Section Base --- */
.section {
  padding: 120px 0;
}
.section-dark {
  background: var(--bg-dark);
  color: var(--text-dark);
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
}
.section-dark .section-desc { color: var(--text-dark-muted); }

/* --- About --- */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}
.about-lead {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 24px;
}
.about-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}
.about-body strong { color: var(--primary); font-weight: 600; }

/* --- Mission & Vision --- */
.mv-header { text-align: center; margin-bottom: 64px; }
.mv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.mv-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: var(--transition);
}
.mv-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(13,155,106,0.1);
}
.mv-icon {
  color: var(--primary);
  margin-bottom: 20px;
}
.mv-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}
.mv-card p {
  font-size: 0.92rem;
  color: var(--text-dark-muted);
  line-height: 1.7;
}

/* --- Product --- */
.product-header {
  text-align: center;
  margin-bottom: 64px;
}
.product-header .section-desc { margin: 0 auto; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.product-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.product-card-large {
  grid-column: span 2;
  grid-row: span 2;
  padding: 36px 32px;
  background: linear-gradient(135deg, #F0FDF4, #ECFDF5);
  border-color: rgba(13,155,106,0.2);
}
.pc-label {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary);
  color: #fff;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.pc-icon { font-size: 2rem; margin-bottom: 16px; }
.product-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.product-card-large h3 { font-size: 1.4rem; }
.product-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.product-card-large p { font-size: 0.95rem; margin-bottom: 20px; }
.pc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pc-tags span {
  padding: 4px 12px;
  background: rgba(13,155,106,0.1);
  color: var(--primary);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
}

/* Platform Banner */
.platform-banner {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.pb-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.pb-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.pb-platforms {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.pb-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
}
.pb-item:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.pb-item span { font-size: 1.1rem; }

/* --- Technology --- */
.tech-header {
  text-align: center;
  margin-bottom: 64px;
}
.tech-header .section-desc { margin: 0 auto; }

.tech-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 64px;
}

/* Architecture Diagram */
.tech-arch {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 36px 32px;
  grid-row: span 2;
}
.tech-arch h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.tech-arch > p {
  font-size: 0.88rem;
  color: var(--text-dark-muted);
  margin-bottom: 32px;
  line-height: 1.6;
}
.arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.arch-layer {
  width: 100%;
  padding: 16px 20px;
  border-radius: var(--radius-xs);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.arch-label { font-weight: 700; font-size: 0.9rem; }
.arch-detail { font-size: 0.78rem; color: var(--text-dark-muted); }
.arch-l1 { background: rgba(13,155,106,0.15); color: var(--primary); }
.arch-l2 { background: rgba(26,115,232,0.12); color: var(--accent); }
.arch-l3 { background: rgba(139,92,246,0.12); color: #A78BFA; }
.arch-l4 { background: rgba(245,158,11,0.12); color: #F59E0B; }
.arch-arrow {
  font-size: 1rem;
  color: var(--text-dark-muted);
  padding: 6px 0;
}

/* Tech Stack Cards */
.tech-stack-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tech-stack-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  transition: var(--transition);
}
.tech-stack-card:hover {
  border-color: rgba(13,155,106,0.3);
}
.tsc-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.tsc-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.tsc-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}
.tsc-item strong {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dark);
}
.tsc-item span {
  font-size: 0.75rem;
  color: var(--text-dark-muted);
  background: rgba(255,255,255,0.05);
  padding: 2px 8px;
  border-radius: 4px;
}

/* Engineering Principles */
.principles {
  border-top: 1px solid var(--border-dark);
  padding-top: 64px;
}
.principles-title {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 40px;
}
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.principle {
  padding: 24px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.principle:hover { border-color: var(--primary); }
.principle-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  font-family: 'Inter', var(--font);
  margin-bottom: 12px;
}
.principle h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.principle p {
  font-size: 0.82rem;
  color: var(--text-dark-muted);
  line-height: 1.6;
}

/* --- Culture --- */
.culture-header {
  text-align: center;
  margin-bottom: 64px;
}
.culture-header .section-desc { margin: 0 auto; }

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.culture-card {
  padding: 36px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
}
.culture-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.cc-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-light);
  font-family: 'Inter', var(--font);
  margin-bottom: 12px;
  line-height: 1;
}
.culture-card:hover .cc-num { color: rgba(13,155,106,0.2); }
.culture-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.culture-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Career --- */
.career-header {
  text-align: center;
  margin-bottom: 64px;
}
.career-header .section-desc { margin: 0 auto; }

.career-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.career-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.career-card:hover {
  border-color: rgba(13,155,106,0.3);
  transform: translateY(-2px);
}
.career-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.career-badge.open { background: rgba(13,155,106,0.15); color: var(--primary); }
.career-badge.upcoming { background: rgba(245,158,11,0.12); color: #F59E0B; }
.career-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.career-type {
  font-size: 0.85rem;
  color: var(--text-dark-muted);
  margin-bottom: 16px;
}
.career-req {
  margin-bottom: 20px;
}
.career-req li {
  font-size: 0.85rem;
  color: var(--text-dark-muted);
  padding: 4px 0 4px 20px;
  position: relative;
  line-height: 1.5;
}
.career-req li::before {
  content: '';
  position: absolute;
  left: 0; top: 11px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.5;
}

/* Benefits */
.benefits {
  border-top: 1px solid var(--border-dark);
  padding-top: 48px;
}
.benefits-title {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 32px;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.benefit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.benefit-item:hover { border-color: var(--primary); }
.benefit-icon { font-size: 1.3rem; }
.benefit-item span:last-child {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
}

/* --- Contact --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}
.contact-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.ci-icon {
  font-size: 1.3rem;
  margin-top: 2px;
}
.ci-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}
.ci-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}
.ci-value:hover { color: var(--primary); }
.social-links {
  display: flex;
  gap: 12px;
}
.social-link {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 0.92rem;
  color: var(--text);
  background: #fff;
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13,155,106,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { appearance: none; cursor: pointer; }

/* --- Footer --- */
.footer {
  background: var(--bg-dark);
  color: var(--text-dark);
  padding: 64px 0 0;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-dark);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: #fff;
}
.footer-desc {
  font-size: 0.88rem;
  color: var(--text-dark-muted);
  line-height: 1.6;
}
.footer-nav {
  display: flex;
  gap: 64px;
}
.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dark-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-dark);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 0.8rem;
  color: var(--text-dark-muted);
}
.footer-legal {
  display: flex;
  gap: 12px;
  align-items: center;
}
.footer-legal a { transition: var(--transition); }
.footer-legal a:hover { color: var(--primary); }
.footer-legal span { opacity: 0.3; }

/* ===========================
   Scroll Reveal Animation
   =========================== */
.section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.section.visible {
  opacity: 1;
  transform: translateY(0);
}
/* Keep numbers-section always visible (it's part of hero flow) */
.numbers-section {
  opacity: 1;
  transform: none;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .about-layout { grid-template-columns: 1fr; gap: 40px; }
  .mv-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-card-large { grid-column: span 2; grid-row: span 1; }
  .tech-layout { grid-template-columns: 1fr; }
  .tech-arch { grid-row: auto; }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .platform-banner { flex-direction: column; text-align: center; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: rgba(9,16,30,0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-dark);
  }
  .nav-links.open .nav-cta {
    text-align: center;
    display: block;
    padding: 12px 20px !important;
  }
  .nav-toggle { display: flex; }

  .section { padding: 80px 0; }
  .numbers-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: 1fr; }
  .product-card-large { grid-column: span 1; }
  .principles-grid { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: 1fr; }
  .career-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { flex-direction: column; }
  .footer-nav { gap: 32px; flex-wrap: wrap; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .tsc-items { grid-template-columns: 1fr; }
  .pb-platforms { justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero { padding: 100px 16px 60px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 280px; }
  .numbers-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px; }
  .footer-nav { flex-direction: column; gap: 24px; }
}