/* ================================================================
   PROTON ORI-ENERGY — Technology Page Styles (v2 Dawn Edition)
   ================================================================ */

.tech-intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.tech-intro-text p {
  font-size: var(--text-base);
  color: var(--color-gray-700);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.tech-structure-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.tech-image-card {
  background: #fff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.tech-image-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.tech-image-card__caption {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  background: var(--color-bg);
}

.tech-structure-card h4 {
  font-size: var(--text-xl);
  margin-bottom: 1.75rem;
}

.structure-flow {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.structure-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-gray-300);
}

.structure-step:last-child { border-bottom: none; }

.structure-step__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--color-eco-500);
  background: var(--color-eco-100);
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.structure-step__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 0.2rem;
}

.structure-step__desc {
  font-size: var(--text-xs);
  color: var(--color-gray-700);
  line-height: 1.55;
  margin: 0;
}

/* How it works — Light Edition */
.how-it-works {
  background: var(--color-bg);
  padding: var(--space-section) 0;
}

.how-it-works .section-title,
.how-it-works .section-label { color: var(--color-heading); }
.how-it-works .section-label { color: var(--color-eco-500); }
.how-it-works .section-desc { color: var(--color-gray-700); }

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
  margin-bottom: 3rem;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 2.75rem;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gray-400), var(--color-eco-500), var(--color-gray-400), transparent);
  z-index: 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

.process-step__circle {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--color-gray-400);
  box-shadow: var(--shadow-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  transition: all var(--duration-med);
}

.process-step:hover .process-step__circle {
  background: var(--color-eco-50);
  border-color: var(--color-eco-500);
  box-shadow: var(--shadow-glow-cyan);
}

.process-step__circle svg {
  width: 22px; height: 22px;
  color: var(--color-gray-600);
  transition: color var(--duration-med);
}

.process-step:hover .process-step__circle svg { color: var(--color-eco-500); }

.process-step__label {
  font-size: var(--text-xs);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-600);
  margin-bottom: 0.4rem;
}

.process-step__title {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: 0.35rem;
}

.process-step__desc {
  font-size: var(--text-xs);
  color: var(--color-gray-600);
  line-height: 1.55;
}

/* Spec section */
.specs-section {
  background: var(--color-pearl-soft);
}

.spec-table-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 2.5rem;
}

.comparison-highlight {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 3rem;
  margin-top: 3rem;
  box-shadow: var(--shadow-md);
}

.comparison-highlight h3 {
  color: var(--color-heading);
  font-size: var(--text-2xl);
  margin-bottom: 2rem;
}

.comparison-matrix {
  display: grid;
  grid-template-columns: 160px repeat(4, 1fr) 150px;
  gap: 0;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.matrix-header {
  background: var(--color-pearl-soft);
  padding: 0.75rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-300);
}

.matrix-header--highlight {
  color: var(--color-eco-500);
  background: var(--color-eco-50);
}

.matrix-row-label {
  background: var(--color-pearl-soft);
  padding: 1rem;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-300);
  border-right: 1px solid var(--color-gray-300);
}

.matrix-cell {
  padding: 1rem;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-300);
  border-right: 1px solid var(--color-gray-300);
  background: #fff;
  text-align: center;
}

.matrix-cell:last-child { border-right: none; }
.matrix-row-label:last-child, .matrix-cell:nth-last-child(-n+6) { border-bottom: none; }

.matrix-cell--advantage {
  background: var(--color-eco-50);
  color: var(--color-eco-600);
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: left;
  padding: 1rem;
}

.matrix-cell--highlight {
  background: var(--color-eco-50);
  color: var(--color-eco-600);
  font-weight: 500;
}

.matrix-cell .check { color: #16a34a; }
.matrix-cell .partial { color: var(--color-gold-400); }
.matrix-cell .cross { color: #dc2626; }

/* R&D Roadmap */
.roadmap-section { background: var(--color-bg); }

.roadmap-timeline {
  position: relative;
  padding-left: 2rem;
}

.roadmap-timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-eco-500), var(--color-sky-500), var(--color-gray-400));
}

.roadmap-item {
  position: relative;
  padding: 0 0 2.5rem 2.5rem;
}

.roadmap-item::before {
  content: '';
  position: absolute;
  left: -0.35rem; top: 0.4rem;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-eco-500);
  border: 2px solid var(--color-pearl-warm);
}

.roadmap-item--future::before { background: var(--color-gray-500); }

.roadmap-item__phase {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-eco-500);
  margin-bottom: 0.4rem;
  display: block;
}

.roadmap-item--future .roadmap-item__phase { color: var(--color-gray-600); }

.roadmap-item h4 { font-size: var(--text-xl); margin-bottom: 0.5rem; }

.roadmap-item p {
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  line-height: 1.65;
  max-width: 60ch;
}

@media (max-width: 1024px) {
  .tech-intro-layout { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .process-steps::before { display: none; }
  .comparison-matrix { grid-template-columns: 100px repeat(4, 1fr) 120px; }
}

@media (max-width: 768px) {
  .process-steps { grid-template-columns: 1fr 1fr; }
  .param-card-grid { grid-template-columns: 1fr 1fr; }
  .comparison-matrix { overflow-x: auto; display: block; }
}