:root {
  --bg: #0d0d0d;
  --surface-1: #111111;
  --surface-2: #1a1a1a;
  --primary: #00ff88;
  --secondary: #00ccff;
  --text: #f0f0f0;
  --muted: #888888;
  --border: 1px solid rgba(0, 255, 136, 0.15);
  --glow-green: 0 0 18px rgba(0, 255, 136, 0.2);
  --glow-cyan: 0 0 20px rgba(0, 204, 255, 0.18);
  --container: 1150px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin-inline: auto;
}

.mono {
  font-family: "JetBrains Mono", monospace;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-title {
  font-size: clamp(1.8rem, 2.5vw, 2.5rem);
  margin: 0 0 0.35rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.section-sub {
  margin: 0 0 2.5rem;
  color: var(--muted);
}

.accent-line {
  width: 130px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  margin: 0.7rem 0 1.2rem;
  box-shadow: var(--glow-green);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.25s ease, backdrop-filter 0.25s ease, border-color 0.25s ease;
}

.navbar.scrolled {
  background: rgba(13, 13, 13, 0.82);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(0, 255, 136, 0.18);
}

.nav-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.12rem;
}

.cursor {
  width: 9px;
  height: 1.1em;
  display: inline-block;
  background: var(--primary);
  animation: blink 1s steps(2, end) infinite;
  box-shadow: 0 0 12px rgba(0, 255, 136, 0.7);
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  color: #d4d4d4;
}

.nav-links a {
  font-size: 0.95rem;
  padding: 0.25rem;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

.hamburger {
  display: none;
  width: 46px;
  height: 40px;
  border: var(--border);
  background: var(--surface-2);
  color: var(--text);
  padding: 0;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  margin: 5px auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero {
  padding-top: 72px;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero::before {
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0px,
    rgba(255, 255, 255, 0.03) 1px,
    transparent 2px,
    transparent 4px
  );
  opacity: 0.14;
}

.hero::after {
  background-image:
    radial-gradient(circle at 20% 10%, rgba(0, 255, 136, 0.12), transparent 38%),
    radial-gradient(circle at 80% 25%, rgba(0, 204, 255, 0.1), transparent 35%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  max-width: 940px;
  margin-inline: auto;
  text-align: center;
}

.terminal {
  text-align: left;
  background: linear-gradient(180deg, #131313, #0f0f0f);
  border: var(--border);
  box-shadow: var(--glow-green), var(--glow-cyan);
  padding: 0;
  overflow: hidden;
}

.terminal-head {
  background: #191919;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.6rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-body {
  min-height: 290px;
  padding: 1rem 1.1rem 1.2rem;
  font-family: "JetBrains Mono", monospace;
  color: #b9ffd9;
  font-size: clamp(0.79rem, 1.7vw, 0.95rem);
  white-space: pre-wrap;
  word-break: break-word;
  position: relative;
}

.terminal-body::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 1.15em;
  margin-left: 5px;
  background: var(--primary);
  animation: blink 1s steps(2, end) infinite;
  vertical-align: middle;
}

.hero h1 {
  margin: 2.2rem 0 0.4rem;
  font-size: clamp(2rem, 5.2vw, 3.35rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.12rem);
}

.cta-row {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.15rem;
  border: var(--border);
  background: var(--surface-1);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 255, 136, 0.3), rgba(0, 204, 255, 0.22));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s ease;
  z-index: -1;
}

.btn:hover::before {
  transform: scaleX(1);
}

.btn:hover {
  border-color: rgba(0, 255, 136, 0.45);
  box-shadow: var(--glow-green);
}

.btn.primary {
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
}

.btn.primary:hover {
  color: #001e10;
}

.badges {
  margin-top: 1.2rem;
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.badges img {
  height: 28px;
  border: var(--border);
  background: #111;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface-1);
  border: var(--border);
  border-top: 2px solid rgba(0, 255, 136, 0.65);
  padding: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-green);
  border-color: rgba(0, 255, 136, 0.36);
}

.card .icon {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
}

.card p {
  margin: 0;
  color: #b7b7b7;
  font-size: 0.96rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.2rem;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 36px;
  left: 2%;
  width: 96%;
  border-top: 1px dashed rgba(0, 255, 136, 0.45);
  z-index: 0;
}

.step {
  position: relative;
  z-index: 1;
  background: var(--surface-1);
  border: var(--border);
  padding: 1rem;
}

.step-num {
  font-family: "JetBrains Mono", monospace;
  color: var(--primary);
  font-size: 2rem;
  line-height: 1;
  text-shadow: 0 0 12px rgba(0, 255, 136, 0.5);
  margin-bottom: 0.7rem;
  font-weight: 700;
}

.step h3 {
  margin: 0 0 0.45rem;
  font-size: 1.04rem;
}

.step p {
  margin: 0;
  color: #b6b6b6;
  font-size: 0.95rem;
}

.inline-code {
  display: inline-block;
  margin-top: 0.4rem;
  border: var(--border);
  background: #111;
  padding: 0.18rem 0.45rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--primary);
  font-size: 0.9rem;
}

.install-wrap {
  background: var(--surface-1);
  border: var(--border);
  padding: 1.1rem;
}

.tabs {
  position: relative;
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 0.45rem;
}

.tab-btn {
  border: none;
  background: transparent;
  color: #b3b3b3;
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  font-weight: 600;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
}

.tab-btn.active {
  color: var(--primary);
}

.tab-underline {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  left: 0;
  bottom: -1px;
  width: 0;
  transition: transform 0.25s ease, width 0.25s ease;
}

.code-panel {
  display: none;
}

.code-panel.active {
  display: block;
}

.code-block {
  background: #0f0f0f;
  border: var(--border);
  padding: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.9rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: #c7ffe3;
  white-space: pre-wrap;
}

.copy-btn {
  border: var(--border);
  background: #171717;
  color: var(--primary);
  min-width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: box-shadow 0.2s ease;
}

.copy-btn:hover {
  box-shadow: var(--glow-green);
}

.copy-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.copy-btn[data-copied="true"] {
  color: #72ffb8;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.6rem;
}

.stat {
  background: var(--surface-1);
  border: var(--border);
  text-align: center;
  padding: 1rem;
}

.stat-value {
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(1.8rem, 4vw, 2.35rem);
  line-height: 1.1;
  color: var(--primary);
  text-shadow: 0 0 12px rgba(0, 255, 136, 0.4);
  font-weight: 700;
}

.stat-label {
  color: #acacac;
  font-size: 0.94rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag {
  border: 1px solid rgba(0, 255, 136, 0.45);
  color: #9dfecd;
  padding: 0.32rem 0.65rem;
  font-size: 0.85rem;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  font-family: "JetBrains Mono", monospace;
}

.tag:hover {
  background: rgba(0, 255, 136, 0.15);
  color: #e8fff3;
  box-shadow: var(--glow-green);
}

.footer {
  border-top: 1px solid rgba(0, 255, 136, 0.3);
  padding: 1.4rem 0;
  background: #0b0b0b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
}

.footer-center {
  display: flex;
  gap: 1rem;
  color: #c2c2c2;
  justify-content: center;
  flex-wrap: wrap;
}

.footer-center a:hover {
  color: var(--primary);
}

.footer-right {
  text-align: right;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-right a {
  color: var(--text);
}

.footer-right a:hover {
  color: var(--primary);
}

.toast {
  position: fixed;
  right: 14px;
  bottom: 14px;
  background: #101010;
  border: 1px solid rgba(0, 255, 136, 0.38);
  color: #d6ffe9;
  padding: 0.6rem 0.8rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.86rem;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 1400;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline::before {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-right {
    text-align: center;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 72px 0;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    padding: 0.9rem 1rem 1rem;
    display: grid;
    gap: 0.35rem;
    background: rgba(13, 13, 13, 0.96);
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
    transform: scaleY(0);
    transform-origin: top;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .nav-links.open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .hamburger {
    display: inline-block;
  }

  .hero h1 {
    margin-top: 1.5rem;
  }

  .terminal-body {
    min-height: 305px;
  }

  .timeline {
    grid-template-columns: 1fr;
  }
}