/* ============================================
   Stack Your Side — Design System v2
   Palette: soft paper white + ink navy + indigo signal + mint accent
   Type: Plus Jakarta Sans (display) + Inter (body)
   Signature: rotating "currently testing" ticker + scroll-reveal
   ============================================ */

:root {
  --bg: #FFFFFF;
  --bg-soft: #F7F7FB;
  --bg-tint: #F1F0FC;
  --card: #FFFFFF;

  --ink: #14141F;
  --ink-soft: #6B6B7D;
  --ink-faint: #9797A8;

  --line: #E9E8F2;
  --line-strong: #DCDAEC;

  --indigo: #5B4FE8;
  --indigo-dark: #4438D1;
  --indigo-tint: #EEEDFC;

  --mint: #14B8A6;
  --mint-tint: #E3F9F5;

  --gold: #B5762B;
  --gold-tint: #FCF2E3;

  --white: #FFFFFF;

  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  --shadow-sm: 0 1px 2px rgba(20,20,31,0.04), 0 1px 1px rgba(20,20,31,0.03);
  --shadow-md: 0 8px 24px rgba(20,20,31,0.08), 0 2px 6px rgba(20,20,31,0.04);
  --shadow-lg: 0 20px 48px rgba(20,20,31,0.12), 0 6px 16px rgba(20,20,31,0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: 780px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-1 { transition-delay: 0.05s; }
.reveal-2 { transition-delay: 0.14s; }
.reveal-3 { transition-delay: 0.23s; }
.reveal-4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Legacy node motif kept as thin divider ---------- */
.node-divider { height: 1px; width: 100%; background: var(--line); }
.node-bg { background: var(--bg-soft); }

/* ---------- Header ---------- */
header.site-header {
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--ink);
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
}

.nav-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.32rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand span { color: var(--indigo); }

nav.main-nav ul { list-style: none; display: flex; gap: 30px; flex-wrap: wrap; }

nav.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  padding-bottom: 3px;
  transition: all 0.15s ease;
}
nav.main-nav a:hover { color: var(--indigo); }

/* ---------- Hero ---------- */
.hero {
  background: var(--bg);
  color: var(--ink);
  padding: 88px 0 76px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-inner { position: relative; max-width: 620px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  color: var(--indigo);
  font-weight: 700;
  margin-bottom: 18px;
  display: inline-block;
}

h1.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.hero-sub { font-size: 1.08rem; color: var(--ink-soft); max-width: 520px; margin-bottom: 32px; }

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn { display: inline-block; padding: 13px 24px; border-radius: 8px; font-weight: 600; font-size: 0.93rem; transition: all 0.15s ease; }
.btn-amber { background: var(--indigo); color: var(--white); box-shadow: var(--shadow-sm); }
.btn-amber:hover { background: var(--indigo-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { border: 1.5px solid var(--line-strong); color: var(--ink); }
.btn-outline:hover { border-color: var(--indigo); color: var(--indigo); }

/* ---------- Hero ticker (signature element) ---------- */
.ticker-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px 28px;
  box-shadow: var(--shadow-md);
  position: relative;
}
.ticker-label {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--ink-faint);
  margin-bottom: 14px;
}
.ticker-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--mint);
  margin-right: 7px;
  animation: pulse-dot 1.8s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.ticker-slot { min-height: 84px; position: relative; }
.ticker-item {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}
.ticker-item.active { opacity: 1; transform: translateY(0); pointer-events: auto; }
.ticker-item .t-cat {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.ticker-item .t-title { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; color: var(--ink); line-height: 1.35; }

.ticker-dots { display: flex; gap: 6px; margin-top: 20px; }
.ticker-dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); transition: background 0.3s ease, width 0.3s ease; }
.ticker-dots span.active { background: var(--indigo); width: 18px; border-radius: 4px; }

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

/* ---------- Sections ---------- */
section { padding: 64px 0; }

h2.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  margin-bottom: 10px;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.section-lead { color: var(--ink-soft); max-width: 620px; margin-bottom: 38px; font-size: 1.01rem; }

/* ---------- Cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 24px;
  transition: all 0.2s cubic-bezier(0.16,1,0.3,1);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }

.card .num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--indigo);
  background: var(--indigo-tint);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.card h3 { font-family: var(--font-display); font-size: 1.12rem; font-weight: 700; color: var(--ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.card p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- Post list / category tags ---------- */
.post-item {
  display: block;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 16px;
  transition: all 0.2s cubic-bezier(0.16,1,0.3,1);
}
.post-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.post-item:last-child { margin-bottom: 0; }

.post-cat {
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin-bottom: 10px;
  display: inline-block;
  padding: 4px 11px;
  border-radius: 20px;
  color: var(--indigo-dark);
  background: var(--indigo-tint);
}
.post-item:nth-of-type(3n+2) .post-cat, a.card:nth-of-type(3n+2) .post-cat { color: #0F8F80; background: var(--mint-tint); }
.post-item:nth-of-type(3n+3) .post-cat, a.card:nth-of-type(3n+3) .post-cat { color: var(--gold); background: var(--gold-tint); }

.post-item h3 { font-family: var(--font-display); font-size: 1.26rem; font-weight: 700; color: var(--ink); margin-bottom: 8px; letter-spacing: -0.01em; transition: color 0.15s ease; }
.post-item:hover h3 { color: var(--indigo); }
.post-item p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- Article ---------- */
article.post-body {
  background: var(--card);
  padding: 48px;
  border-radius: 18px;
  border: 1px solid var(--line);
  margin: -40px 0 60px;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-lg);
}
article.post-body h2 { font-family: var(--font-display); color: var(--ink); font-size: 1.4rem; font-weight: 800; margin: 36px 0 14px; letter-spacing: -0.02em; }
article.post-body h2:first-child { margin-top: 0; }
article.post-body h3 { font-family: var(--font-display); color: var(--ink); font-size: 1.1rem; font-weight: 700; margin: 22px 0 10px; }
article.post-body p { margin-bottom: 16px; color: var(--ink); }
article.post-body ul, article.post-body ol { margin: 0 0 18px 22px; }
article.post-body li { margin-bottom: 8px; }
article.post-body strong { color: var(--ink); font-weight: 700; }
article.post-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.92rem; }
article.post-body th, article.post-body td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
article.post-body th { background: var(--bg-soft); font-family: var(--font-display); color: var(--ink); }

.post-meta { color: var(--ink-faint); font-size: 0.88rem; margin-top: 12px; }
.post-hero-title { max-width: 700px; }

.article-footer-note {
  background: var(--indigo-tint);
  border-left: 3px solid var(--indigo);
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  font-size: 0.94rem;
  color: var(--ink-soft);
  margin-top: 30px;
}
.article-footer-note a { color: var(--indigo-dark); }

/* ---------- Footer ---------- */
footer.site-footer { background: var(--ink); color: rgba(255,255,255,0.6); padding: 44px 0 32px; font-size: 0.88rem; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 18px; align-items: center; }
footer.site-footer a:hover { color: var(--white); }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }

/* ---------- Misc pages ---------- */
.page-hero { background: var(--bg-soft); color: var(--ink); padding: 60px 0; border-bottom: 1px solid var(--line); }
.simple-page { padding: 48px 0 68px; }
.simple-page h2 { font-family: var(--font-display); color: var(--ink); font-size: 1.32rem; font-weight: 800; margin: 30px 0 12px; letter-spacing: -0.02em; }
.simple-page h2:first-child { margin-top: 0; }
.simple-page p { margin-bottom: 14px; color: var(--ink-soft); }
.simple-page a { color: var(--indigo); font-weight: 600; }

form.contact-form { display: flex; flex-direction: column; gap: 16px; max-width: 480px; }
form.contact-form input, form.contact-form textarea {
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--bg-soft);
  transition: border-color 0.15s ease, background 0.15s ease;
}
form.contact-form input:focus, form.contact-form textarea:focus {
  outline: none;
  border-color: var(--indigo);
  background: var(--white);
}
form.contact-form label { font-size: 0.84rem; font-weight: 600; color: var(--ink); margin-bottom: 4px; display: block; }

@media (max-width: 640px) {
  nav.main-nav ul { gap: 16px; }
  article.post-body { padding: 28px 20px; margin-top: -24px; }
  .footer-row { flex-direction: column; align-items: flex-start; }
  .hero { padding: 56px 0 48px; }
}

/* ============================================
   Cursor-tracked spotlight (hero)
   ============================================ */
.hero-slider {
  --spot-x: 50%;
  --spot-y: 30%;
}
.hero-spotlight {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(420px circle at var(--spot-x) var(--spot-y), rgba(91,79,232,0.07), transparent 70%);
  transition: background 0.15s ease-out;
}

/* ============================================
   Terminal-style status line
   ============================================ */
.status-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.status-line .status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 rgba(20,184,166,0.5);
  animation: status-pulse 2s infinite;
}
@keyframes status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(20,184,166,0.45); }
  70% { box-shadow: 0 0 0 6px rgba(20,184,166,0); }
  100% { box-shadow: 0 0 0 0 rgba(20,184,166,0); }
}
.status-line .cursor-blink {
  display: inline-block;
  width: 6px; height: 12px;
  background: var(--indigo);
  animation: cursor-blink 1s steps(1) infinite;
}
@keyframes cursor-blink {
  0%, 50% { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}

/* ============================================
   Live stats bar
   ============================================ */
.stats-bar {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 32px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  text-align: center;
}
.stat-item .stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  color: var(--indigo);
  letter-spacing: -0.02em;
  display: block;
}
.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  margin-top: 4px;
}

/* ============================================
   Shimmer sweep on primary button
   ============================================ */
.btn-amber {
  position: relative;
  overflow: hidden;
}
.btn-amber::after {
  content: "";
  position: absolute;
  top: 0; left: -60%;
  width: 40%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-20deg);
  animation: shimmer-sweep 3.2s ease-in-out infinite;
}
@keyframes shimmer-sweep {
  0% { left: -60%; }
  40%, 100% { left: 130%; }
}
@media (prefers-reduced-motion: reduce) {
  .btn-amber::after { animation: none; display: none; }
  .status-line .cursor-blink { animation: none; }
}

/* ============================================
   Hero slider (robot illustrations)
   ============================================ */
.hero-slider {
  position: relative;
  padding: 76px 0 46px;
  overflow: hidden;
  background: var(--bg);
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(91,79,232,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91,79,232,0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 40%, transparent 90%);
  pointer-events: none;
}

.slide-track { position: relative; min-height: 420px; }

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(24px);
  transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s;
}
.slide.active { opacity: 1; visibility: visible; transform: translateX(0); position: relative; }

.slide-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }

.eyebrow-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--indigo);
  margin-right: 8px;
  vertical-align: middle;
  animation: pulse-dot 1.8s ease-in-out infinite;
}

.grad-text {
  background: linear-gradient(90deg, var(--indigo) 0%, #8B7CF6 50%, var(--mint) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.bot-illustration { width: 100%; max-width: 380px; margin: 0 auto; display: block; filter: drop-shadow(0 16px 30px rgba(91,79,232,0.18)); }

@media (max-width: 860px) {
  .slide-grid { grid-template-columns: 1fr; text-align: center; }
  .slide-text .hero-actions { justify-content: center; }
  .bot-illustration { max-width: 260px; margin-top: 20px; }
  .slide-track { min-height: 620px; }
}

.slide-dots { display: flex; gap: 10px; margin-top: 28px; justify-content: flex-start; }
@media (max-width: 860px) { .slide-dots { justify-content: center; } }

.slide-dot {
  width: 28px; height: 5px;
  border-radius: 4px;
  background: var(--line-strong);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.25s ease, width 0.25s ease;
}
.slide-dot.active { background: var(--indigo); width: 44px; }
.slide-dot:hover { background: var(--indigo-dark); }

/* ============================================
   Hashtag marquee
   ============================================ */
.hashtag-marquee {
  background: var(--ink);
  overflow: hidden;
  padding: 14px 0;
  white-space: nowrap;
}
.hashtag-track {
  display: inline-flex;
  gap: 14px;
  animation: marquee-scroll 26s linear infinite;
}
.hashtag-track span {
  font-family: 'Space Mono', monospace;
  font-size: 0.82rem;
  font-weight: 700;
  color: #C9C4FB;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 7px 16px;
  border-radius: 20px;
  flex-shrink: 0;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .hashtag-track { animation: none; }
}

/* ============================================
   Icon cards (Start here section)
   ============================================ */
.icon-card { padding-top: 26px; }
.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

/* ============================================
   Ambient decoration: floating bot silhouettes + glow blobs
   ============================================ */
.ambient-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  animation: blob-drift 14s ease-in-out infinite alternate;
}
.glow-blob.indigo { background: radial-gradient(circle, #C9C4FB 0%, transparent 70%); }
.glow-blob.mint { background: radial-gradient(circle, #A7F3E8 0%, transparent 70%); }
.glow-blob.gold { background: radial-gradient(circle, #FBDDA8 0%, transparent 70%); }

@keyframes blob-drift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(24px, -18px) scale(1.08); }
}

.mini-bot {
  position: absolute;
  opacity: 0.16;
  animation: bot-float 7s ease-in-out infinite;
}
@keyframes bot-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-14px) rotate(2deg); }
}

section, .page-hero, .hero-slider { position: relative; }
section > .wrap, section > .wrap-wide,
.page-hero > .wrap, .page-hero > .wrap-wide { position: relative; z-index: 1; }

@media (prefers-reduced-motion: reduce) {
  .glow-blob, .mini-bot { animation: none; }
}

@media (max-width: 640px) {
  .ambient-layer .mini-bot:nth-child(n+3) { display: none; }
}