:root {
  --bg: #050505;
  --panel: rgba(10, 10, 15, .86);
  --line: rgba(0, 229, 255, .18);
  --text: #ffffff;
  --muted: #9aa4bd;
  --blue: #00e5ff;
  --green: #39ff14;
  --purple: #b100ff;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "Segoe UI Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 10%, rgba(57, 255, 20, .12), transparent 26%),
    radial-gradient(circle at 85% 12%, rgba(0, 229, 255, .15), transparent 30%),
    #050505;
  color: var(--text);
  font-family: var(--font-mono);
  line-height: 1.65;
}

a {
  color: inherit;
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 18px auto 0;
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(10, 10, 15, .78);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 18px;
  position: sticky;
  top: 12px;
  z-index: 5;
  backdrop-filter: blur(14px);
}

.brand {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 800;
  text-decoration: none;
}

.brand span {
  color: var(--blue);
  font-size: .9rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: .9rem;
}

.nav-links a {
  text-decoration: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  background: var(--blue);
  color: #001015;
  font-weight: 800;
  text-decoration: none;
}

.btn.secondary {
  border: 1px solid rgba(0, 229, 255, .38);
  background: transparent;
  color: var(--blue);
}

.topic-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.topic-nav a {
  border: 1px solid rgba(0, 229, 255, .24);
  border-radius: 999px;
  color: var(--text);
  font-size: .82rem;
  font-weight: 800;
  padding: 8px 12px;
  text-decoration: none;
}

.topic-nav a:hover {
  border-color: rgba(57, 255, 20, .46);
  color: var(--green);
}

.hero,
.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 86px 0 46px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 38px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  border: 1px solid rgba(57, 255, 20, .35);
  color: var(--green);
  padding: 6px 10px;
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--font-sans);
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.35rem, 5vw, 5rem);
  margin: 18px 0 18px;
}

.lead {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 760px;
}

.hero-card,
.card,
.article,
.cta {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  box-shadow: 0 24px 90px rgba(0, 0, 0, .35);
}

.hero-card {
  padding: 16px;
}

.hero-card img,
.card img {
  width: 100%;
  display: block;
  border-radius: 6px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 26px 0 70px;
}

.term-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 24px 0 72px;
}

.term-card {
  min-height: 190px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  display: grid;
  gap: 10px;
  padding: 18px;
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease;
}

.term-card:hover {
  transform: translateY(-3px);
  border-color: rgba(57, 255, 20, .42);
}

.term-card h2 {
  font-size: 1.18rem;
  margin: 0;
}

.term-card p {
  color: var(--muted);
  margin: 0;
}

.definition-box {
  border: 1px solid rgba(57, 255, 20, .26);
  border-radius: 8px;
  background: rgba(57, 255, 20, .06);
  margin: 26px 0;
  padding: 18px;
}

.definition-box strong {
  color: var(--green);
  display: block;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.cluster-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
}

.cluster-strip a {
  border: 1px solid rgba(0, 229, 255, .24);
  border-radius: 999px;
  color: var(--blue);
  font-size: .8rem;
  font-weight: 800;
  padding: 7px 10px;
  text-decoration: none;
}

.hub-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items: start;
  padding: 22px 0 72px;
}

.hub-main,
.hub-side {
  display: grid;
  gap: 18px;
}

.hub-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 22px;
}

.hub-panel h2 {
  margin-top: 0;
}

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

.hub-list a {
  display: grid;
  gap: 4px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 8px;
  background: rgba(255, 255, 255, .035);
  padding: 14px;
  text-decoration: none;
}

.hub-list strong {
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.05rem;
}

.hub-list span {
  color: var(--muted);
}

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

.intent-box {
  border-left: 3px solid var(--green);
  border-radius: 8px;
  background: rgba(57, 255, 20, .055);
  padding: 14px;
}

.intent-box strong {
  color: var(--green);
  display: block;
  margin-bottom: 6px;
}

.card {
  overflow: hidden;
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(57, 255, 20, .42);
}

.card-content {
  padding: 18px;
}

.tag {
  color: var(--blue);
  font-weight: 800;
  font-size: .78rem;
  text-transform: uppercase;
}

.card h2 {
  font-size: 1.35rem;
  margin: 10px 0;
}

.card p,
.article p,
.article li {
  color: var(--muted);
}

.article {
  max-width: 860px;
  margin: 48px auto 70px;
  padding: clamp(22px, 5vw, 58px);
}

.article h1 {
  font-size: clamp(2rem, 4vw, 4rem);
}

.article h2 {
  margin-top: 38px;
  font-size: 1.85rem;
}

.article h3 {
  margin-top: 26px;
  font-size: 1.25rem;
}

.article img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  margin: 26px 0;
}

.article ul,
.article ol {
  padding-left: 22px;
}

.note {
  border-left: 3px solid var(--green);
  padding: 14px 16px;
  background: rgba(57, 255, 20, .06);
  color: var(--text);
}

.related {
  margin-top: 34px;
  padding: 18px;
  border: 1px solid rgba(0, 229, 255, .16);
  border-radius: 8px;
  background: rgba(255, 255, 255, .04);
}

.related h2 {
  margin-top: 0;
  font-size: 1.35rem;
}

.related a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.related a:hover {
  text-decoration: underline;
}

.faq-block {
  margin-top: 34px;
}

.faq-block h2 {
  margin-top: 0;
}

details {
  border: 1px solid rgba(0, 229, 255, .16);
  border-radius: 8px;
  background: rgba(255, 255, 255, .035);
  margin-top: 12px;
  padding: 0 16px;
}

summary {
  cursor: pointer;
  font-family: var(--font-sans);
  font-weight: 800;
  list-style-position: outside;
  padding: 15px 0;
}

details p {
  margin-top: 0;
}

.cta {
  margin-top: 36px;
  padding: 24px;
  display: grid;
  gap: 12px;
}

.cta h2 {
  margin: 0;
}

.cta p {
  margin: 0;
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 30px 16px;
  text-align: center;
}

@media (max-width: 860px) {
  .hero,
  .grid,
  .term-grid,
  .hub-layout,
  .intent-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px;
    position: static;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
  }

  .btn {
    width: 100%;
  }
}

/* TIPS35 ROI sprint blocks 2026-06-23 */
.decision-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 26px 0;
}

.decision-step {
  min-height: 190px;
  border: 1px solid rgba(0, 229, 255, .2);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(0, 229, 255, .06), rgba(57, 255, 20, .035)), rgba(10, 10, 15, .76);
  padding: 20px;
}

.decision-step h2 {
  margin-top: 0;
  color: #f7fbff;
}

.faq {
  display: grid;
  gap: 12px;
  margin: 26px 0;
}

.faq details {
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
  background: rgba(255, 255, 255, .045);
  padding: 16px 18px;
}

.faq summary {
  cursor: pointer;
  color: #f7fbff;
  font-family: var(--font-sans);
  font-weight: 850;
}

@media (max-width: 760px) {
  .decision-grid {
    grid-template-columns: 1fr;
  }
}