:root {
  --text-xs: clamp(0.7rem, 0.65rem + 0.2vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.2vw, 0.9rem);
  --text-base: clamp(0.875rem, 0.82rem + 0.2vw, 0.95rem);
  --text-lg: clamp(1rem, 0.9rem + 0.4vw, 1.2rem);
  --text-xl: clamp(1.2rem, 1rem + 0.8vw, 1.6rem);
  --text-2xl: clamp(1.5rem, 1rem + 1.5vw, 2.5rem);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --card-image-height: 350px;
  --card-robot-width: clamp(180px, 18vw, 220px);
  --card-robot-height: clamp(220px, 24vw, 300px);
  --hero-image-width: min(100%, 680px);
  --hero-image-height: clamp(320px, 52vh, 420px);
  --font-body: "JetBrains Mono", "Courier New", monospace;
  --color-bg: #000000;
  --color-panel: #111111;
  --color-text: #cccccc;
  --color-text-muted: #888888;
  --color-text-faint: #444444;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  min-height: 100vh;
}

a {
  color: inherit;
}

.header {
  padding: var(--space-8) 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100% !important;
  padding: 0 !important;
}

.container {
  max-width: 1500px !important;
  margin-inline: auto;
  padding-inline: var(--space-6) !important;
}

.logo {
  display: block;
  margin: 0 !important;
  color: var(--color-text-faint);
  text-align: center;
  text-decoration: none;
}

.logo-text {
  display: inline-block;
  position: relative;
  transform: none;
  color: var(--color-text-faint);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-text span,
#logoA {
  color: inherit !important;
}

.region-section {
  padding: clamp(var(--space-4), 3vw, var(--space-8)) 0;
}

.region-section:first-of-type {
  padding-top: 0;
}

.robots-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  justify-items: center;
  gap: 30px 20px;
}

@media (max-width: 1000px) {
  .robots-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 25px 18px;
  }
}

@media (max-width: 550px) {
  .robots-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}

.robot-card-wrapper {
  display: block;
  width: min(100%, 340px);
}

.robot-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.robot-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border: 0;
  border-radius: 16px;
  background: transparent;
  box-shadow: none;
}

.robot-card-image {
  position: relative;
  width: 100%;
  height: var(--card-image-height);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 16px 16px 0 0;
  background: var(--color-bg);
}

.robot-card-image img {
  display: block;
  width: auto;
  height: var(--card-robot-height);
  max-width: calc(100% - 1.25rem);
  max-height: calc(100% - 1rem);
  object-fit: contain;
  object-position: center;
}

.robot-card-image img[alt="Optimus"],
.robot-card-image img[alt="XPENG IRON"] {
  height: calc(var(--card-robot-height) * 1.1);
}

.robot-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: var(--space-4) var(--space-5) var(--space-5);
  font-family: var(--font-body);
}

.robot-card-name {
  margin-bottom: var(--space-1);
  color: #ffffff;
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.robot-card-company {
  display: block;
  margin-bottom: var(--space-2);
  color: #ffffff;
  font-size: var(--text-xs);
  font-weight: 500;
}

.robot-card-desc {
  color: #ffffff;
  font-size: var(--text-xs);
  line-height: 1.65;
  min-height: calc(1.65em * 4);
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.tech-label {
  color: var(--color-text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer {
  padding: var(--space-8) 0 var(--space-12);
}

.footer .container {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  text-align: center;
}

.footer p {
  max-width: none;
}

.robot-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.robot-hero-img {
  display: block;
  width: auto;
  height: var(--hero-image-height);
  max-width: 100%;
  margin: 0 auto 2rem;
  background: var(--color-bg);
  object-fit: contain;
  object-position: center;
}

.robot-detail-optimus .robot-hero-img,
.robot-detail-xpeng-iron .robot-hero-img {
  height: calc(var(--hero-image-height) * 1.1);
}

.robot-title {
  margin-bottom: 0.2rem;
  color: var(--color-text);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
}

.robot-company {
  margin-bottom: 2rem;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.section {
  margin-bottom: 2rem;
}

.section h3 {
  margin-bottom: 0.75rem;
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: 600;
}

.section p,
.section li {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.8;
}

.section ul {
  padding-left: 1.25rem;
  list-style: disc;
  list-style-position: outside;
}

.section li {
  margin-bottom: var(--space-2);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.spec-item {
  padding: 0;
  background: transparent;
  border-radius: 0;
}

.spec-label {
  margin-bottom: 0.2rem;
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

.spec-value {
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: 600;
}

@media (max-width: 600px) {
  .specs-grid {
    grid-template-columns: 1fr;
  }
}