@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&family=JetBrains+Mono:wght@400;600&display=swap");

:root {
  --bg: #fff;
  --bg2: #f4f4f4;
  --dark: #0a0a0a;
  --fg: #0a0a0a;
  --fg3: #777;
  --border: rgba(0, 0, 0, 0.08);
  --mono: "JetBrains Mono", monospace;
  --sans: "Inter", sans-serif;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  background-image: radial-gradient(circle, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}

a {
  color: inherit;
}

.lab-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.lab-nav-logo {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.lab-nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  list-style: none;
}

.lab-nav-links a {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--border);
  transition: all 0.25s;
}

.lab-nav-links a:hover,
.lab-nav-links a.active {
  background: var(--dark);
  color: white;
  border-color: var(--dark);
}

.lab-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lab-sfx {
  background: none;
  border: 1px solid var(--border);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--fg3);
  transition: all 0.25s;
}

.lab-sfx:hover,
.lab-sfx[aria-pressed="true"] {
  border-color: var(--dark);
  color: var(--fg);
}

.lab-sfx[aria-pressed="false"] {
  opacity: 0.5;
}

.lab-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 72px 40px 48px;
}

.lab-hero .tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--fg3);
  margin-bottom: 12px;
}

.lab-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 16px;
}

.lab-hero p {
  max-width: 620px;
  color: #444;
  font-size: 1.05rem;
}

.lab-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px 100px;
}

.lab-panel {
  border: 1px solid var(--border);
  background: white;
  padding: 32px;
  margin-bottom: 24px;
}

.lab-panel h2 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--fg3);
  margin-bottom: 20px;
}

/* CV pipeline */
.pipeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 28px;
}

.pipe-step {
  text-align: center;
  padding: 16px 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s var(--ease);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
}

.pipe-step i {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 8px;
  opacity: 0.5;
}

.pipe-step.active,
.pipe-step:hover {
  background: var(--dark);
  color: white;
  border-color: var(--dark);
  transform: translateY(-4px);
}

.pipe-step.active i,
.pipe-step:hover i {
  opacity: 1;
}

.cv-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.cv-preview {
  position: relative;
  aspect-ratio: 16/10;
  background: #0a0a0a;
  overflow: hidden;
  border: 1px solid var(--border);
}

.cv-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.cv-box {
  position: absolute;
  border: 2px solid #22c55e;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.4);
  transition: all 0.5s var(--ease);
  pointer-events: none;
}

.cv-box .lbl {
  position: absolute;
  top: -22px;
  left: 0;
  font-family: var(--mono);
  font-size: 0.5rem;
  background: #22c55e;
  color: #000;
  padding: 2px 8px;
  font-weight: 700;
}

.cv-output h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.cv-output p {
  color: #555;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.proj-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 12px 20px;
  background: var(--dark);
  color: white;
  text-decoration: none;
}

/* Web studio */
.stack-pick {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.stack-btn {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  padding: 12px 22px;
  border: 1px solid var(--border);
  background: white;
  cursor: pointer;
  transition: all 0.25s;
}

.stack-btn.active {
  background: var(--dark);
  color: white;
}

.browser-mock {
  border: 1px solid var(--border);
  overflow: hidden;
}

.browser-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}

.browser-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ccc;
}

.browser-url {
  flex: 1;
  margin-left: 12px;
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--fg3);
  padding: 4px 10px;
  background: white;
  border: 1px solid var(--border);
}

.browser-body {
  padding: 24px;
  min-height: 200px;
  transition: opacity 0.35s;
}

.browser-body h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.browser-body ul {
  margin: 16px 0 0 20px;
  color: #555;
  font-size: 0.9rem;
}

/* Create lab tabs */
.tab-row {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tab-btn {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  padding: 10px 18px;
  border: 1px solid var(--border);
  background: white;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--dark);
  color: white;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.workflow {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.wf-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--border);
  transition: border-color 0.3s, transform 0.3s;
}

.wf-item:hover {
  border-color: var(--dark);
  transform: translateX(6px);
}

.wf-num {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: #ddd;
  line-height: 1;
}

.wf-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.wf-item p {
  font-size: 0.88rem;
  color: #666;
}

@media (max-width: 900px) {
  .lab-nav {
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
  }
  .pipeline {
    grid-template-columns: repeat(3, 1fr);
  }
  .cv-stage {
    grid-template-columns: 1fr;
  }
  .lab-nav,
  .lab-hero,
  .lab-main {
    padding-left: 20px;
    padding-right: 20px;
  }
}

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