/* ── Hero ── */

.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
  overflow: hidden;
}

.hero-scan-bg {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 229, 255, 0.015) 2px,
      rgba(0, 229, 255, 0.015) 4px
    );
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 10%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 10%, transparent 100%);
  animation: scan-drift 8s linear infinite;
}

@keyframes scan-drift {
  0% { background-position: 0 0; }
  100% { background-position: 0 200px; }
}

.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 65%);
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  background: var(--color-primary-dim);
  border: 1px solid var(--color-border-accent);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-title-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero h1 { margin-bottom: 0; letter-spacing: -0.02em; }
.hero h1 .accent { color: var(--color-primary); }

.hero-live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(40, 200, 64, 0.08);
  border: 1px solid rgba(40, 200, 64, 0.2);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #28c840;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28c840;
  box-shadow: 0 0 8px rgba(40, 200, 64, 0.6);
  animation: live-pulse 2s ease-in-out infinite;
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-subtitle {
  font-size: 1.15rem;
  max-width: 620px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 28px;
}

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

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 10px 24px;
  background: var(--color-primary-dim);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.hero-link:hover {
  background: rgba(0, 229, 255, 0.12);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
  transform: translateY(-2px);
  color: var(--color-primary);
}

.hero-link svg {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}

/* ── Section Shared ── */

.section-title { text-align: center; }

.section-desc {
  text-align: center;
  max-width: 600px;
  margin: -8px auto 44px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── Migration (Before / After) ── */

.migration-section {
  padding: 80px 0;
  background: var(--color-bg-surface);
}

.migration-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 28px;
  align-items: stretch;
  max-width: 920px;
  margin: 0 auto;
}

.mig-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mig-card.before { border-color: rgba(239, 68, 68, 0.22); }
.mig-card.after { border-color: var(--color-border-accent); box-shadow: var(--shadow-glow-sm); }

.mig-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mig-card.before .mig-label { color: #ef4444; }
.mig-card.after .mig-label { color: var(--color-primary); }

.mig-card h3 { font-size: 1.1rem; margin: 0; }

.mig-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }

.mig-list li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  padding-left: 22px;
  position: relative;
}

.mig-card.before .mig-list li::before { content: "\2715"; position: absolute; left: 0; color: #ef4444; }
.mig-card.after .mig-list li::before { content: "\2713"; position: absolute; left: 0; color: #4ade80; }

.mig-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.6rem;
  opacity: 0.6;
}

/* ── Feature Grid ── */

.features-section { padding: 80px 0; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color var(--transition), box-shadow var(--transition);
}

.feat-card.visible { opacity: 1; transform: translateY(0); }

.feat-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.08);
}

.feat-icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary-dim);
  margin-bottom: 4px;
}

.feat-icon svg {
  width: 20px; height: 20px;
  stroke: var(--color-primary);
  fill: none; stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
}

.feat-card h3 { font-size: 0.98rem; margin: 0; }

.feat-card p {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ── Key Numbers ── */

.numbers-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  padding: 60px 0;
  flex-wrap: wrap;
}

.num-item { text-align: center; padding: 0 clamp(20px, 4vw, 48px); }

.num-value {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
  text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
  margin-bottom: 4px;
}

.num-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.num-sep { width: 1px; height: 40px; background: var(--color-border); flex-shrink: 0; }

/* ── Tech Stack ── */

.tech-section { padding: 80px 0; background: var(--color-bg-surface); }

.tech-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.tech-tag:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow-sm);
  transform: translateY(-2px);
}

.tech-tag svg {
  width: 20px; height: 20px;
  stroke: var(--color-primary);
  fill: none; stroke-width: 1.5;
  stroke-linecap: round; stroke-linejoin: round;
}

/* ── About Block ── */

.about-block { padding: 80px 0; }

.about-content { max-width: 680px; margin: 0 auto; text-align: center; }

.about-content p { font-size: 1.05rem; line-height: 1.9; color: var(--color-text-muted); }

/* ── Responsive ── */

@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .migration-grid { grid-template-columns: 1fr; }
  .mig-arrow { transform: rotate(90deg); padding: 4px 0; }
}

@media (max-width: 768px) {
  .hero { min-height: auto; padding: 100px 0 50px; }
  .numbers-row { gap: 20px; }
  .num-sep { display: none; }
  .num-item { padding: 10px 20px; }
}

@media (max-width: 560px) {
  .features-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-title-row { gap: 10px; }
}