:root {
  --ink: #122536;
  --muted: #4a6275;
  --paper: rgba(255, 255, 255, 0.78);
  --paper-strong: rgba(255, 255, 255, 0.9);
  --line: rgba(18, 37, 54, 0.14);
  --accent: #0f7fa8;
  --accent-strong: #1456c2;
  --accent-soft: #f97316;
  --shadow-lg: 0 24px 70px rgba(17, 42, 66, 0.16);
  --shadow-md: 0 14px 34px rgba(16, 45, 68, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgba(15, 127, 168, 0.28), transparent 38%),
    radial-gradient(circle at 90% 12%, rgba(249, 115, 22, 0.22), transparent 34%),
    linear-gradient(130deg, #f9f6ef 0%, #edf4ff 52%, #eef8f6 100%);
  min-height: 100vh;
  line-height: 1.68;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(18, 37, 54, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 37, 54, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: -2;
}

.bg-glow {
  position: fixed;
  width: 34vw;
  height: 34vw;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(34px);
  z-index: -1;
}

.bg-glow-left {
  top: -11vw;
  left: -8vw;
  background: rgba(20, 86, 194, 0.2);
}

.bg-glow-right {
  top: -9vw;
  right: -6vw;
  background: rgba(249, 115, 22, 0.2);
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 72px 0 30px;
}

.hero-title {
  margin: 0;
  font-family: "Sora", "Plus Jakarta Sans", sans-serif;
  font-size: clamp(1.45rem, 4.1vw, 3.15rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  text-align: center;
  max-width: 28ch;
  margin-inline: auto;
}

.meta {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.meta span {
  border: 1px solid var(--line);
  background: var(--paper-strong);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.93rem;
  color: #19374c;
  box-shadow: 0 8px 24px rgba(18, 37, 54, 0.08);
}

.cta-row {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border-radius: 12px;
  border: 1px solid transparent;
  text-decoration: none;
  padding: 11px 17px;
  font-family: "Sora", "Plus Jakarta Sans", sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:not(.btn-ghost) {
  color: #fff;
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-strong) 100%);
  box-shadow: 0 12px 28px rgba(20, 86, 194, 0.28);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--line);
  color: var(--ink);
  box-shadow: 0 10px 24px rgba(18, 37, 54, 0.08);
}

.btn-ghost:hover {
  border-color: rgba(20, 86, 194, 0.42);
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  padding: clamp(18px, 3vw, 30px);
  margin-bottom: 22px;
}

.panel h2 {
  margin: 0 0 14px;
  font-family: "Sora", "Plus Jakarta Sans", sans-serif;
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  letter-spacing: -0.01em;
}

.panel h2::after {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  border-radius: 999px;
  margin-top: 8px;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
}

.panel p {
  margin: 0 0 10px;
  color: #304a5e;
}

.section-desc {
  color: var(--muted);
  margin-top: 2px;
}

.panel-video {
  padding: 14px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.86) 0%, rgba(233, 244, 255, 0.78) 100%);
}

.video-wrap {
  margin-top: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(13, 37, 56, 0.2);
  box-shadow: var(--shadow-md);
  aspect-ratio: 16 / 9;
  background: #09131a;
}

video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.figure-stack {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.figure-card {
  position: relative;
  overflow: hidden;
}

.figure-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 92px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
}

.figure-card h2 {
  margin-top: 8px;
}

.figure-card h2::after {
  display: none;
}

figure {
  margin: 0;
}

img {
  width: 100%;
  display: block;
}

figure img {
  border-radius: 14px;
  border: 1px solid rgba(13, 37, 56, 0.18);
  box-shadow: 0 12px 30px rgba(13, 37, 56, 0.12);
}

.setup-image {
  width: min(50%, 720px);
  margin-inline: auto;
}

figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.97rem;
}

.results-grid {
  margin-top: 12px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.results-grid img {
  border-radius: 12px;
  border: 1px solid var(--line);
}

pre {
  margin: 0;
  overflow: auto;
  border-radius: 12px;
  background: #101a30;
  color: #e4edf8;
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 16px;
}

.footer {
  padding: 6px 0 46px;
  color: var(--muted);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

@media (max-width: 980px) {
  .hero {
    padding-top: 58px;
  }

  .hero-title {
    font-size: clamp(1.22rem, 4.6vw, 2.1rem);
  }

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

@media (max-width: 640px) {
  .container {
    width: min(1120px, 94vw);
  }

  .hero-title {
    font-size: clamp(1.12rem, 6.1vw, 1.5rem);
  }

  .setup-image {
    width: 100%;
  }

  .panel {
    border-radius: 16px;
    padding: 16px;
  }

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