:root {
  --bg: #0f1724;
  --card: #0b1220;
  --accent: #1ea7fd;
  --muted: #9aa4b2;
  --glass: rgba(255, 255, 255, 0.03);
}

* {
  box-sizing: border-box;
}

body {
  font-family:
    Inter,
    system-ui,
    Segoe UI,
    Roboto,
    "Helvetica Neue",
    Arial,
    Helvetica,
    sans-serif;
  margin: 0;
  background: linear-gradient(180deg, #071427 0%, #031424 100%);
  color: #e6eef6;
}

.hero {
  padding: 56px 16px;
  background: linear-gradient(90deg, rgba(30, 167, 253, 0.06), transparent);
}

.hero .inner {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.5px;
}

.hero .tagline {
  color: var(--muted);
  margin-top: 8px;
}

.hero .meta {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}

.actions {
  margin-top: 18px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #041226;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  margin-right: 8px;
  font-weight: 600;
}

.btn.outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--accent);
}

.container {
  max-width: 920px;
  margin: 28px auto;
  padding: 20px;
  background: linear-gradient(180deg,
      rgba(255, 255, 255, 0.02),
      rgba(255, 255, 255, 0.01));
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.02);
}

section {
  margin-bottom: 18px;
}

section h2 {
  margin: 0 0 10px 0;
  color: #fff;
}

ul,
ol {
  margin: 0 0 0 18px;
}

.note {
  color: var(--muted);
  font-size: 13px;
}

/* Gallery styles */
.gallery {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.gallery figure {
  flex: 1 1 300px;
  background: rgba(255, 255, 255, 0.02);
  padding: 8px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.02);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.gallery figure.wide {
  flex: 1 1 640px;
}

.gallery img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}

.gallery figcaption {
  color: var(--muted);
  font-size: 13px;
  margin-top: 8px;
}

footer {
  margin-top: 22px;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 20px;
  }

  .container {
    padding: 14px;
  }
}

/* Tech Stack Styles */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.tech-item {
  background: rgba(255, 255, 255, 0.03);
  padding: 12px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-item h3 {
  margin: 0 0 8px 0;
  font-size: 14px;
  color: var(--accent);
  text-transform: uppercase;
}

.tech-item p {
  margin: 0;
  font-size: 13px;
  color: #ccc;
  line-height: 1.5;
}

.badge {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(30, 167, 253, 0.1);
  color: var(--accent);
  border-radius: 4px;
  font-size: 11px;
  margin-right: 4px;
  margin-bottom: 4px;
}

.challenge-box {
  background: rgba(30, 167, 253, 0.03);
  border-left: 3px solid var(--accent);
  padding: 12px;
  margin-top: 12px;
  border-radius: 0 8px 8px 0;
}

.challenge-box h3 {
  margin: 0 0 6px 0;
  font-size: 15px;
}

.challenge-box p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* Architecture Styles */
.arch-wrapper {
  overflow-x: auto;
  padding: 10px 0;
}

.arch-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  min-width: 600px;
}

.arch-row {
  display: flex;
  gap: 40px;
  align-items: center;
  position: relative;
}

.arch-item {
  background: var(--card);
  border: 1px solid var(--accent);
  padding: 16px;
  border-radius: 10px;
  text-align: center;
  min-width: 160px;
  box-shadow: 0 4px 15px rgba(30, 167, 253, 0.1);
}

.arch-item strong {
  display: block;
  font-size: 14px;
  color: #fff;
  margin-bottom: 4px;
}

.arch-item span {
  font-size: 11px;
  color: var(--muted);
}

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--accent);
  font-size: 18px;
  font-weight: bold;
}

.arch-arrow::after {
  content: "⇅";
}

.arch-arrow.horizontal::after {
  content: "⇄";
}