/* ============================================
   XJ Power - Page Styles v2.0
   Sub-page specific styles
   ============================================ */

/* ========== Nav Solid (sub-page nav) ========== */
.nav-solid {
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-solid .nav-links a.active {
  color: var(--text-primary);
  position: relative;
}

.nav-solid .nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -24px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
}

/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}

.page-hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  background: var(--gradient-glow);
  opacity: 0.6;
  mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 20%, transparent 70%);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 20%, transparent 70%);
  z-index: 0;
}

.page-hero-bg.safety-bg {
  background: radial-gradient(ellipse at center right, rgba(6, 182, 212, 0.25) 0%, rgba(59, 130, 246, 0.1) 40%, transparent 70%);
}

.page-hero-bg.about-bg {
  background: radial-gradient(ellipse at center right, rgba(139, 92, 246, 0.2) 0%, rgba(236, 72, 153, 0.1) 40%, transparent 70%);
}

.page-hero-bg.careers-bg {
  background: radial-gradient(ellipse at center right, rgba(59, 130, 246, 0.25) 0%, rgba(139, 92, 246, 0.15) 40%, transparent 70%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.page-hero-content {
  max-width: 560px;
}

.page-hero-title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 16px 0 12px;
}

.page-hero-subtitle {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 20px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero-subtitle.gradient-text-cyan {
  background: linear-gradient(135deg, #22D3EE 0%, #60A5FA 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero-desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.page-hero-visual {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-color);
  aspect-ratio: 16/10;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4),
              0 0 100px rgba(139, 92, 246, 0.15);
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-image-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-image-glow.cyan-glow {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, transparent 60%);
}

/* ========== Page Metrics ========== */
.page-metrics {
  padding: 48px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

/* ========== Section Title Small ========== */
.section-title-sm {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

/* ========== Feature Row ========== */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-row.reverse .feature-text {
  order: 2;
}

.feature-row.reverse .feature-visual {
  order: 1;
}

.feature-text .section-label {
  display: inline-block;
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin-top: 24px;
}

.feature-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list strong {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 15px;
}

.feature-list span {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.vision-quote {
  margin-top: 24px;
  padding: 20px 24px;
  border-left: 3px solid var(--brand-purple);
  background: var(--bg-card);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.vision-quote p {
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  font-style: italic;
  margin: 0;
}

/* ========== Architecture Steps ========== */
.arch-steps {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.arch-step {
  display: flex;
  gap: 32px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
}

.arch-step:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.arch-step-num {
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-mono);
  min-width: 70px;
}

.arch-step-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.arch-step-content p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.arch-step-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.arch-step-tags span {
  padding: 4px 12px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--brand-purple);
  font-family: var(--font-mono);
}

/* ========== How It Works Steps ========== */
.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.how-step {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
  position: relative;
}

.how-step:hover {
  border-color: var(--border-color-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.how-step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: 50%;
  color: var(--brand-purple);
}

.how-step-icon svg {
  width: 28px;
  height: 28px;
}

.how-step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.how-step p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ========== Use Cases ========== */
.use-case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.use-case-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
}

.use-case-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.use-case-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border-radius: 12px;
  margin-bottom: 16px;
  background: rgba(139, 92, 246, 0.1);
  color: var(--brand-purple);
}

.use-case-icon.purple { background: rgba(139, 92, 246, 0.1); color: var(--brand-purple); }
.use-case-icon.blue { background: rgba(59, 130, 246, 0.1); color: var(--brand-blue); }
.use-case-icon.cyan { background: rgba(6, 182, 212, 0.1); color: var(--brand-cyan); }
.use-case-icon.pink { background: rgba(236, 72, 153, 0.1); color: var(--brand-pink); }

.use-case-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.use-case-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ========== Compare Table ========== */
.compare-table {
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-card);
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border-color);
}

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

.compare-header {
  background: var(--bg-tertiary);
  font-weight: 700;
  color: var(--text-primary);
}

.compare-cell {
  padding: 18px 24px;
  font-size: 14px;
  color: var(--text-secondary);
  border-right: 1px solid var(--border-color);
}

.compare-cell:last-child {
  border-right: none;
}

.compare-header .compare-cell {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.compare-best {
  background: rgba(6, 182, 212, 0.05);
  color: var(--brand-cyan);
}

.compare-header .compare-best {
  color: var(--brand-cyan);
  background: rgba(6, 182, 212, 0.08);
}

/* ========== Team Section ========== */
.team-visual {
  max-width: 900px;
  margin: 0 auto 60px;
}

.team-card {
  aspect-ratio: 21/9;
}

.team-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-item {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
}

.value-item:hover {
  border-color: var(--border-color-hover);
  transform: translateY(-3px);
}

.value-icon {
  font-size: 32px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

.value-item h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.value-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ========== Timeline ========== */
.timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--brand-blue);
  z-index: 1;
}

.timeline-dot.active {
  border-color: var(--brand-purple);
  background: var(--brand-purple);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
}

.timeline-dot.future {
  border-color: var(--text-tertiary);
  border-style: dashed;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s ease;
}

.timeline-content:hover {
  border-color: var(--border-color-hover);
  transform: translateX(4px);
}

.timeline-date {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-purple);
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.timeline-content p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* ========== Job List ========== */
.job-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.job-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.3s ease;
}

.job-item:hover {
  border-color: var(--border-color-hover);
}

.job-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 32px;
  cursor: pointer;
}

.job-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.job-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.job-tag {
  padding: 3px 10px;
  background: rgba(139, 92, 246, 0.1);
  color: var(--brand-purple);
  border-radius: 4px;
  font-weight: 500;
  font-size: 12px;
  font-family: var(--font-mono);
}

.job-desc {
  padding: 0 32px 28px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  margin-top: 0;
}

.job-desc p {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 16px 0 8px;
}

.job-desc p:first-child {
  margin-top: 0;
}

.job-desc ul {
  padding-left: 20px;
  margin: 0;
}

.job-desc li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.more-jobs {
  text-align: center;
  margin-top: 48px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
}

.more-jobs p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.more-jobs strong {
  color: var(--brand-purple);
  font-weight: 700;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .page-hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .page-hero-content {
    max-width: 100%;
    text-align: center;
  }

  .page-hero-title {
    font-size: 42px;
  }

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

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

  .team-values {
    grid-template-columns: 1fr;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-row.reverse .feature-text {
    order: 1;
  }

  .feature-row.reverse .feature-visual {
    order: 2;
  }
}

@media (max-width: 768px) {
  .page-hero {
    padding: 60px 0;
  }

  .page-hero-title {
    font-size: 36px;
  }

  .page-hero-subtitle {
    font-size: 22px;
  }

  .section-title-sm {
    font-size: 28px;
  }

  .how-steps {
    grid-template-columns: 1fr;
  }

  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .arch-step {
    flex-direction: column;
    gap: 16px;
    padding: 24px;
  }

  .arch-step-num {
    font-size: 36px;
    min-width: auto;
  }

  .compare-row {
    grid-template-columns: 1fr;
  }

  .compare-cell {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .job-header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .timeline {
    padding-left: 32px;
  }

  .timeline-dot {
    left: -32px;
  }
}

/* ========== Mechanics Model Page ========== */
.page-mechanics .gradient-text-gold {
  background: linear-gradient(135deg, #F59E0B 0%, #A78BFA 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-mechanics .feature-icon.gold {
  background: rgba(245, 158, 11, 0.1);
  color: #F59E0B;
}

.page-mechanics .compare-best-gold {
  background: rgba(245, 158, 11, 0.06);
  color: #F59E0B;
}

.page-mechanics .compare-header .compare-best-gold {
  background: rgba(245, 158, 11, 0.08);
  color: #F59E0B;
}

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

.domain-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.domain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.domain-card.domain-classic::before { background: linear-gradient(90deg, #3B82F6, #60A5FA); }
.domain-card.domain-rotation::before { background: linear-gradient(90deg, #06B6D4, #22D3EE); }
.domain-card.domain-wave::before { background: linear-gradient(90deg, #8B5CF6, #A78BFA); }
.domain-card.domain-quantum::before { background: linear-gradient(90deg, #F59E0B, #FBBF24); }

.domain-card:hover {
  border-color: var(--border-color-hover);
  transform: translateY(-3px);
}

.domain-label {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  color: var(--text-tertiary);
}

.domain-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.domain-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.domain-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.domain-tags span {
  padding: 3px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.formula-showcase {
  text-align: center;
  padding: 60px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  position: relative;
  overflow: hidden;
}

.formula-showcase::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.formula-equation {
  font-size: 48px;
  font-weight: 300;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, #F59E0B 0%, #A78BFA 50%, #3B82F6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.formula-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}