:root {
  --bg: #07131a;
  --bg-deep: #041017;
  --bg-soft: #10212b;
  --panel: rgba(10, 29, 39, 0.76);
  --panel-strong: rgba(16, 38, 50, 0.92);
  --panel-muted: rgba(255, 255, 255, 0.05);
  --panel-border: rgba(150, 214, 203, 0.16);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4f7f4;
  --muted: #a0b5b0;
  --muted-strong: #cad9d4;
  --mint: #8de1c7;
  --teal: #52c7b8;
  --sand: #f0c98f;
  --clay: #c9744f;
  --ink: #091217;
  --success: #7ee0a0;
  --danger: #ff8d7a;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 16% 0%, rgba(82, 199, 184, 0.18), transparent 30rem),
    radial-gradient(circle at 86% 14%, rgba(240, 201, 143, 0.14), transparent 22rem),
    linear-gradient(180deg, var(--bg) 0%, #09161f 36%, var(--bg-deep) 100%);
  overflow-x: hidden;
}

body::selection {
  color: var(--ink);
  background: var(--mint);
}

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

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  isolation: isolate;
}

.background-orb,
.grid-noise {
  position: fixed;
  pointer-events: none;
  z-index: -2;
}

.background-orb {
  width: 34rem;
  height: 34rem;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.42;
}

.orb-one {
  top: 8rem;
  left: -17rem;
  background: rgba(82, 199, 184, 0.18);
}

.orb-two {
  right: -16rem;
  bottom: 2rem;
  background: rgba(201, 116, 79, 0.14);
}

.grid-noise {
  inset: 0;
  z-index: -1;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 78px 78px;
  mask-image: radial-gradient(circle at top, black 0, transparent 72%);
}

.topbar {
  position: sticky;
  top: 18px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max), calc(100% - 32px));
  margin: 18px auto 0;
  padding: 14px 16px;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: rgba(6, 19, 25, 0.78);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.brand-icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background:
    linear-gradient(160deg, rgba(240, 201, 143, 0.3), rgba(82, 199, 184, 0.14)),
    rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12);
}

.brand-mark {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.05;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: -0.03em;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted-strong);
  font-size: 0.9rem;
}

.nav a {
  padding: 10px 13px;
  border-radius: 999px;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-1px);
}

.nav-admin {
  color: var(--ink) !important;
  background: linear-gradient(135deg, var(--mint), var(--sand));
  font-weight: 800;
}

.nav-current {
  color: var(--text) !important;
  background: rgba(82, 199, 184, 0.12);
}

main {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.78fr);
  gap: 34px;
  align-items: center;
  min-height: calc(100vh - 92px);
  padding: 78px 0 58px;
}

.hero-copy {
  position: relative;
}

.hero-ribbon {
  position: absolute;
  top: -1.3rem;
  right: 1rem;
  color: rgba(255, 255, 255, 0.07);
  font-size: clamp(2.8rem, 9vw, 7.5rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.08em;
  pointer-events: none;
  user-select: none;
}

.status-pill,
.kicker,
.eyebrow,
.step-label,
.step-key,
.feature-icon,
.setup-list span {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.status-pill,
.kicker,
.eyebrow,
.step-label {
  color: var(--mint);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 26px;
  padding: 10px 13px;
  border: 1px solid rgba(141, 225, 199, 0.26);
  border-radius: 999px;
  background: rgba(141, 225, 199, 0.08);
}

.pulse-dot {
  position: relative;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 0 6px rgba(126, 224, 160, 0.12);
}

.pulse-dot::after {
  position: absolute;
  inset: -7px;
  content: "";
  border: 1px solid rgba(126, 224, 160, 0.4);
  border-radius: inherit;
  animation: ping 1.8s infinite;
}

@keyframes ping {
  from { transform: scale(.75); opacity: .8; }
  to { transform: scale(1.7); opacity: 0; }
}

.kicker {
  margin: 0 0 16px;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: clamp(3.15rem, 6.8vw, 6.4rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
  background: linear-gradient(148deg, #fff 0%, #dff0ea 42%, var(--sand) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  max-width: 760px;
  color: var(--muted-strong);
  font-size: clamp(1.06rem, 2vw, 1.25rem);
  line-height: 1.78;
}

.hero-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-strip span {
  padding: 10px 14px;
  border: 1px solid rgba(141, 225, 199, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted-strong);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-story {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 14px;
  max-width: 780px;
  margin-top: 26px;
}

.story-card {
  padding: 18px 20px;
  border: 1px solid rgba(240, 201, 143, 0.18);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(240, 201, 143, 0.12), rgba(82, 199, 184, 0.06)),
    rgba(255, 255, 255, 0.035);
}

.story-card-quiet {
  border-color: rgba(141, 225, 199, 0.14);
  background: rgba(255, 255, 255, 0.03);
}

.story-card small,
.story-card strong {
  display: block;
}

.story-card small {
  margin-bottom: 8px;
  color: var(--mint);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.story-card strong {
  font-size: 1.02rem;
  line-height: 1.45;
}

.actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}

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

.btn.primary {
  color: var(--ink);
  background: linear-gradient(135deg, var(--mint), var(--sand));
  box-shadow: 0 18px 52px rgba(82, 199, 184, 0.22);
}

.btn.secondary {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
}

.btn.quiet {
  color: var(--muted-strong);
  border-color: rgba(255, 255, 255, 0.08);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 760px;
  margin: 38px 0 0;
}

.hero-metrics div {
  padding: 18px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.04);
}

.hero-metrics dt {
  font-size: 1.38rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--sand);
}

.hero-metrics dd {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.tracker-console {
  position: relative;
  padding: 24px;
  border: 1px solid rgba(240, 201, 143, 0.16);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.03)),
    rgba(7, 24, 31, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
  overflow: hidden;
}

.tracker-console::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    radial-gradient(circle at top right, rgba(240, 201, 143, 0.16), transparent 14rem),
    radial-gradient(circle at 20% 10%, rgba(82, 199, 184, 0.16), transparent 18rem);
  pointer-events: none;
}

.tracker-console > * {
  position: relative;
}

.console-badge-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.console-badge-cluster span {
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted-strong);
  font-size: 0.74rem;
  font-weight: 800;
}

.console-top,
.console-card,
.console-grid,
.stat-card,
.quality-panel,
.feature-card,
.usecase-grid article,
.flow-board article,
.setup-list div,
.cta-section,
.guide-result,
.guide-card,
.detail-grid div,
.response-grid div,
.error-list div,
.guide-cta,
.technical-details {
  box-shadow: inset 0 1px 0 rgba(255,255,255,.07);
}

.console-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.console-top strong,
.console-card strong,
.console-grid strong {
  display: block;
  margin-top: 6px;
}

.health-badge {
  align-self: start;
  padding: 7px 10px;
  color: var(--ink);
  border-radius: 999px;
  background: var(--success);
  font-size: 0.78rem;
  font-weight: 900;
}

.console-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  border: 1px solid rgba(141, 225, 199, 0.22);
  border-radius: 22px;
  background: rgba(141, 225, 199, 0.07);
}

.console-card small,
.console-grid small,
.stat-card small {
  color: var(--muted);
}

.console-card span {
  color: var(--success);
  font-size: 0.82rem;
  font-weight: 850;
}

.signal-line {
  height: 52px;
  width: 2px;
  margin: 0 0 0 30px;
  background: linear-gradient(var(--mint), rgba(240, 201, 143, 0.25));
}

.console-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.console-grid div {
  padding: 15px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 18px;
  background: rgba(255,255,255,.045);
}

.mini-timeline {
  display: grid;
  gap: 15px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.mini-timeline li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
}

.mini-timeline li > span {
  width: 13px;
  height: 13px;
  margin-top: 4px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--mint), var(--sand));
  box-shadow: 0 0 0 6px rgba(240, 201, 143, 0.08);
}

.mini-timeline p {
  margin: 0;
}

.mini-timeline strong,
.mini-timeline small {
  display: block;
}

.mini-timeline small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.55;
}

.section,
.guide-shell {
  padding: 78px 0;
}

.section-title {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(0, 1.1fr);
  gap: 34px;
  align-items: end;
  margin-bottom: 28px;
}

.section-title.compact,
.section-title.wide {
  display: block;
  max-width: 920px;
}

.section-title h2,
.guide-card h2,
.guide-cta h2 {
  margin-bottom: 0;
  font-size: clamp(2.15rem, 4vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  background: linear-gradient(155deg, #fff 0%, #d6e6df 78%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p:last-child,
.guide-card p,
.guide-card li {
  margin: 14px 0 0;
  color: var(--muted-strong);
  font-size: 1.03rem;
  line-height: 1.72;
}

.tracker-grid,
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.usecase-grid article,
.flow-board article,
.setup-list div,
.quality-panel,
.stat-card,
.guide-result,
.guide-card,
.detail-grid div,
.response-grid div,
.error-list div,
.guide-cta,
.technical-details {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  backdrop-filter: blur(18px);
}

.feature-card {
  min-height: 220px;
  padding: 26px;
  grid-column: span 4;
  transition: transform .22s cubic-bezier(.22,1,.36,1), border-color .22s ease, box-shadow .22s ease;
}

.feature-card.feature-card-wide {
  grid-column: span 6;
}

.feature-card:hover,
.usecase-grid article:hover,
.setup-list div:hover,
.detail-grid div:hover {
  transform: translateY(-5px);
  border-color: rgba(141, 225, 199, 0.28);
  box-shadow:
    0 26px 64px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(141, 225, 199, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.feature-card.featured {
  background:
    linear-gradient(145deg, rgba(82, 199, 184, 0.16), rgba(240, 201, 143, 0.08)),
    var(--panel);
}

.feature-card.feature-card-accent {
  background:
    radial-gradient(circle at top right, rgba(240, 201, 143, 0.12), transparent 12rem),
    linear-gradient(160deg, rgba(255,255,255,.03), rgba(255,255,255,.01)),
    var(--panel);
}

.feature-card::before,
.usecase-grid article::before,
.setup-list div::before {
  display: block;
  width: 100%;
  height: 1px;
  margin-bottom: 22px;
  content: "";
  background: linear-gradient(90deg, rgba(141, 225, 199, 0.5), rgba(240, 201, 143, 0));
}

.feature-icon,
.step-key,
.setup-list span,
.copy-title span {
  display: inline-grid;
  place-items: center;
  color: var(--ink);
  background: linear-gradient(135deg, var(--mint), var(--sand));
  font-weight: 900;
}

.feature-icon,
.step-key {
  width: 46px;
  height: 46px;
  margin-bottom: 28px;
  border-radius: 14px;
}

.feature-card h3,
.flow-board h3,
.usecase-grid h3,
.quality-panel h3,
.guide-card h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
  letter-spacing: -0.03em;
}

.feature-card p,
.flow-board p,
.usecase-grid p,
.setup-list p,
.quality-panel li {
  color: var(--muted);
  line-height: 1.68;
}

.feature-points {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.feature-points li {
  position: relative;
  padding-left: 26px;
  color: var(--muted-strong);
  line-height: 1.55;
}

.feature-points li::before {
  position: absolute;
  top: 0.28rem;
  left: 0;
  width: 14px;
  height: 14px;
  content: "";
  border-radius: 999px;
  background: linear-gradient(135deg, var(--mint), var(--sand));
  box-shadow: 0 0 0 5px rgba(141, 225, 199, 0.08);
}

.flow-board {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.flow-intro,
.setup-note {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  max-width: 920px;
  margin: 0 0 24px;
  padding: 18px 22px;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.03);
}

.setup-note {
  margin: 24px 0 0;
  background:
    linear-gradient(145deg, rgba(82, 199, 184, 0.08), rgba(240, 201, 143, 0.06)),
    rgba(255, 255, 255, 0.03);
}

.flow-intro strong,
.setup-note strong {
  color: var(--sand);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.flow-intro p,
.setup-note p {
  margin: 0;
  color: var(--muted-strong);
  line-height: 1.7;
}

.flow-board article {
  position: relative;
  min-height: 320px;
  padding: 20px;
  overflow: hidden;
}

.flow-card {
  background:
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015)),
    var(--panel) !important;
}

.flow-card-entry {
  background:
    radial-gradient(circle at top left, rgba(82, 199, 184, 0.16), transparent 10rem),
    var(--panel) !important;
}

.flow-card-accent {
  background:
    linear-gradient(145deg, rgba(240, 201, 143, 0.14), rgba(82, 199, 184, 0.08)),
    var(--panel) !important;
}

.flow-card-result {
  background:
    radial-gradient(circle at top right, rgba(240, 201, 143, 0.16), transparent 10rem),
    var(--panel) !important;
}

.flow-board article:not(:last-child)::after {
  position: absolute;
  top: 38px;
  right: -12px;
  z-index: 2;
  width: 24px;
  height: 24px;
  content: "→";
  display: grid;
  place-items: center;
  color: var(--ink);
  border-radius: 999px;
  background: var(--sand);
  font-weight: 900;
}

.flow-board code,
.api-grid pre,
.guide-card pre {
  display: block;
  width: 100%;
  white-space: pre-wrap;
  word-break: break-word;
  color: #dcf7f1;
  border: 1px solid rgba(141,225,199,.14);
  background: rgba(0, 0, 0, 0.24);
}

.flow-board code {
  margin-top: 18px;
  padding: 12px;
  border-radius: 14px;
  font-size: 0.78rem;
  line-height: 1.5;
}

.quality-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 18px;
  align-items: stretch;
}

.quality-panel {
  padding: 28px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.15rem;
  content: "✓";
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: var(--ink);
  border-radius: 999px;
  background: var(--success);
  font-size: 0.78rem;
  font-weight: 950;
}

.stats-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  padding: 24px;
}

.stat-card strong {
  display: block;
  margin: 9px 0 8px;
  font-size: clamp(1.7rem, 3vw, 2.55rem);
  letter-spacing: -0.05em;
  color: var(--sand);
}

.stat-card span {
  color: var(--muted);
}

.usecase-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.usecase-grid article {
  min-height: 190px;
  padding: 24px;
}

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

.surface-card::after {
  position: absolute;
  inset: auto -2rem -2rem auto;
  width: 8rem;
  height: 8rem;
  content: "";
  border-radius: 999px;
  background: radial-gradient(circle, rgba(141, 225, 199, 0.16), transparent 68%);
  pointer-events: none;
}

.surface-card-accent {
  background:
    linear-gradient(145deg, rgba(82, 199, 184, 0.14), rgba(240, 201, 143, 0.08)),
    var(--panel) !important;
}

.setup-list {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

.setup-list div {
  padding: 22px;
  grid-column: span 4;
}

.setup-list span {
  width: 38px;
  height: 38px;
  margin-bottom: 20px;
  border-radius: 13px;
}

.setup-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

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

.setup-card::after {
  position: absolute;
  right: 18px;
  bottom: 18px;
  color: rgba(255, 255, 255, 0.06);
  content: attr(data-step);
}

.setup-card-accent {
  background:
    linear-gradient(145deg, rgba(240, 201, 143, 0.12), rgba(82, 199, 184, 0.06)),
    var(--panel) !important;
}

.setup-card-wide {
  grid-column: span 8 !important;
}

.api-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.api-grid pre {
  min-height: 146px;
  margin: 0;
  padding: 20px;
  border-radius: var(--radius-lg);
  line-height: 1.65;
}

.api-note {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  max-width: 920px;
  margin: 24px 0 0;
  padding: 18px 22px;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(240, 201, 143, 0.08), rgba(82, 199, 184, 0.05)),
    rgba(255,255,255,.03);
}

.api-note strong {
  color: var(--sand);
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.api-note p {
  margin: 0;
  color: var(--muted-strong);
  line-height: 1.7;
}

.cta-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin: 44px 0 80px;
  padding: 40px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 8% 20%, rgba(141,225,199,.18), transparent 20rem),
    radial-gradient(circle at 92% 78%, rgba(240,201,143,.14), transparent 18rem),
    linear-gradient(135deg, rgba(82,199,184,.16), rgba(201,116,79,.18));
}

.cta-section h2 {
  margin: 0;
  max-width: 840px;
  font-size: clamp(1.86rem, 3vw, 3.1rem);
}

.cta-copy p:last-child {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted-strong);
  line-height: 1.72;
}

.cta-side {
  display: grid;
  gap: 18px;
}

.cta-actions {
  justify-content: flex-end;
  margin: 0;
}

.cta-mini-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  min-width: 340px;
}

.cta-mini-metrics div {
  padding: 16px 14px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 18px;
  background: rgba(255,255,255,.045);
  text-align: center;
}

.cta-mini-metrics strong,
.cta-mini-metrics span {
  display: block;
}

.cta-mini-metrics strong {
  color: var(--sand);
  font-size: 1rem;
  letter-spacing: -0.03em;
}

.cta-mini-metrics span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.82rem;
}

.section-divider {
  border: none;
  height: 1px;
  margin: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.055) 28%,
    rgba(255,255,255,0.055) 72%,
    transparent 100%
  );
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 30px 0 48px;
  border-top: 1px solid rgba(255,255,255,0.07);
  color: var(--muted);
  font-size: 0.82rem;
  flex-wrap: wrap;
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.site-footer__brand strong,
.site-footer__brand small {
  display: block;
}

.site-footer__brand strong {
  font-size: 0.96rem;
}

.site-footer__brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.76rem;
}

.site-footer__links {
  display: flex;
  gap: 18px;
}

.site-footer__stamp {
  max-width: 320px;
  color: var(--muted-strong);
  text-align: right;
  line-height: 1.55;
}

.guide-shell {
  padding-bottom: 90px;
}

.guide-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(310px, 0.62fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 34px;
}

.guide-hero h1 {
  max-width: 860px;
  margin: 14px 0 22px;
  font-size: clamp(3rem, 7vw, 6rem);
}

.guide-lead {
  max-width: 760px;
  color: var(--muted-strong);
  font-size: 1.1rem;
  line-height: 1.76;
}

.guide-result {
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(240, 201, 143, 0.12), rgba(82, 199, 184, 0.08)),
    var(--panel);
}

.guide-result span,
.guide-result strong {
  display: block;
}

.guide-result span {
  color: var(--mint);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.guide-result strong {
  margin: 12px 0;
  font-size: 1.2rem;
}

.guide-result p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.guide-tabs {
  position: sticky;
  top: 100px;
  z-index: 10;
  display: flex;
  gap: 7px;
  margin-bottom: 28px;
  padding: 9px;
  overflow-x: auto;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: rgba(6, 19, 25, 0.86);
  backdrop-filter: blur(20px);
}

.guide-tabs a {
  flex: 1 0 max-content;
  padding: 10px 13px;
  color: var(--muted-strong);
  border-radius: 12px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 750;
}

.guide-tabs a:hover {
  color: var(--ink);
  background: var(--mint);
}

.guide-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.guide-toc {
  position: sticky;
  top: 174px;
  display: grid;
  gap: 6px;
  padding: 18px;
  border-left: 1px solid rgba(141, 225, 199, 0.26);
}

.guide-toc strong {
  margin-bottom: 8px;
  font-size: 0.85rem;
}

.guide-toc a {
  padding: 6px 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.guide-toc a:hover {
  color: var(--mint);
}

.guide-content {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.guide-card {
  scroll-margin-top: 178px;
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-xl);
}

.step-card {
  background:
    linear-gradient(145deg, rgba(82, 199, 184, 0.08), rgba(255,255,255,.035)),
    var(--panel);
}

.step-label {
  display: inline-block;
  margin-bottom: 16px;
}

.guide-card h2 {
  margin: 0 0 18px;
}

.guide-card code {
  color: #dcf7f1;
}

.guide-card pre {
  margin: 18px 0;
  padding: 20px;
  overflow-x: auto;
  border-radius: 18px;
  line-height: 1.65;
  white-space: pre;
}

.flow-list,
.launch-checklist {
  display: grid;
  gap: 12px;
  padding-left: 24px;
}

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

.detail-grid div,
.response-grid div {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,.03);
}

.detail-grid p {
  margin: 0;
  font-size: 0.92rem;
}

.checkpoint,
.plain-explanation,
.warning-box,
.platform-note,
.change-only {
  margin: 22px 0 0 !important;
  padding: 16px 18px;
  border-radius: 18px;
}

.checkpoint {
  border-left: 3px solid var(--success);
  border-radius: 0 12px 12px 0;
  background: rgba(126,224,160,.08);
}

.plain-explanation {
  border: 1px solid rgba(141,225,199,.28);
  background: rgba(141,225,199,.06);
}

.warning-box {
  border: 1px solid rgba(240,201,143,.28);
  background: rgba(240,201,143,.08);
}

.platform-note {
  border: 1px solid rgba(201,116,79,.28);
  background: rgba(201,116,79,.08);
}

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

.response-grid span {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.error-list {
  display: grid;
  gap: 10px;
}

.error-list div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 15px;
  align-items: start;
  padding: 15px;
  border-radius: 16px;
}

.error-list code {
  font-weight: 900;
}

.error-list p {
  margin: 0;
}

.guide-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin-top: 28px;
  padding: 34px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(82,199,184,.16), rgba(240,201,143,.1)),
    var(--panel);
}

.guide-cta h2 {
  max-width: 820px;
  margin: 10px 0 0;
  font-size: clamp(1.7rem, 3vw, 2.8rem);
  line-height: 1.05;
}

.copy-title {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 34px !important;
  font-size: 1.2rem !important;
}

.copy-title span {
  min-width: 42px;
  height: 32px;
  padding: 0 8px;
  border-radius: 10px;
  font-size: 0.8rem;
}

.technical-details {
  margin: 24px 0;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(0,0,0,.14);
}

.technical-details summary {
  cursor: pointer;
  color: var(--mint);
  font-weight: 800;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s cubic-bezier(.22,1,.36,1),
    transform 0.7s cubic-bezier(.22,1,.36,1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-group] > * {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.55s cubic-bezier(.22,1,.36,1),
    transform 0.55s cubic-bezier(.22,1,.36,1);
}

[data-reveal-group].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-group].is-visible > *:nth-child(2) { transition-delay: 70ms; }
[data-reveal-group].is-visible > *:nth-child(3) { transition-delay: 140ms; }
[data-reveal-group].is-visible > *:nth-child(4) { transition-delay: 210ms; }
[data-reveal-group].is-visible > *:nth-child(5) { transition-delay: 280ms; }
[data-reveal-group].is-visible > *:nth-child(6) { transition-delay: 350ms; }

[data-reveal-group].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .hero,
  .section-title,
  .quality-layout,
  .cta-section,
  .guide-hero,
  .guide-cta {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
  }

  .tracker-console {
    max-width: 680px;
  }

  .hero-ribbon {
    position: static;
    margin-bottom: 18px;
    font-size: clamp(2.4rem, 8vw, 4.8rem);
  }

  .hero-story {
    grid-template-columns: 1fr;
  }

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

  .feature-card,
  .feature-card.feature-card-wide {
    grid-column: auto;
  }

  .flow-board article:not(:last-child)::after {
    display: none;
  }

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

  .setup-list .setup-card,
  .setup-list .setup-card-wide {
    grid-column: auto !important;
  }

  .cta-actions {
    justify-content: flex-start;
  }

  .cta-mini-metrics {
    min-width: 0;
  }

  .guide-layout {
    grid-template-columns: 1fr;
  }

  .guide-toc {
    display: none;
  }

  .flow-intro,
  .setup-note,
  .api-note {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .topbar {
    position: static;
    align-items: flex-start;
    border-radius: 26px;
  }

  .nav {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .nav a {
    padding: 8px 10px;
    font-size: 0.82rem;
  }

  h1,
  .guide-hero h1 {
    font-size: clamp(2.75rem, 16vw, 4.8rem);
  }

  .hero-metrics,
  .tracker-grid,
  .flow-board,
  .setup-list,
  .api-grid,
  .usecase-grid,
  .stats-panel,
  .detail-grid,
  .response-grid {
    grid-template-columns: 1fr;
  }

  .section,
  .guide-shell {
    padding: 56px 0;
  }

  .section-title h2,
  .guide-card h2,
  .cta-section h2,
  .guide-cta h2 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

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

  .hero-strip,
  .console-badge-cluster {
    gap: 8px;
  }

  .cta-mini-metrics {
    grid-template-columns: 1fr;
  }

  .guide-tabs {
    top: 12px;
  }

  .guide-card {
    scroll-margin-top: 104px;
  }
}

@media (max-width: 560px) {
  main,
  .topbar {
    width: min(100% - 22px, var(--max));
  }

  .topbar,
  .brand {
    flex-direction: column;
  }

  .brand {
    align-items: flex-start;
  }

  .nav {
    justify-content: flex-start;
  }

  .tracker-console,
  .cta-section,
  .guide-card,
  .guide-result,
  .guide-cta {
    padding: 18px;
    border-radius: 24px;
  }

  .actions,
  .cta-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .site-footer__stamp {
    text-align: left;
  }

  .error-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}