:root,
[data-theme="dark"] {
  --bg: #0d1117;
  --bg-2: #11161d;
  --bg-3: #161b22;
  --bg-card: #11161d;
  --border: #232b35;
  --border-soft: #1c232c;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #4f8cff;
  --accent-2: #6e5bff;
  --green: #2ea043;
  --red: #f85149;
  --yellow: #d29922;
  --shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.65);
  --grad: linear-gradient(120deg, #4f8cff, #6e5bff);
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --sans: "Outfit", "Segoe UI", system-ui, sans-serif;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-2: #f6f8fa;
  --bg-3: #eef1f5;
  --bg-card: #ffffff;
  --border: #d0d7de;
  --border-soft: #e4e8ed;
  --text: #1f2328;
  --text-dim: #57606a;
  --accent: #0969da;
  --accent-2: #8250df;
  --shadow: 0 24px 60px -24px rgba(80, 90, 120, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); font-size: 0.88em; }

.container {
  width: min(1140px, 100% - 48px);
  margin-inline: auto;
}

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn-lg { padding: 14px 26px; font-size: 1.02rem; }
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(79, 140, 255, 0.7);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(110, 91, 255, 0.8); }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav.scrolled { border-color: var(--border-soft); }
.nav-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark { border-radius: 10px; }
.brand-name { font-size: 1.2rem; letter-spacing: -0.01em; }
.brand-ai {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-left: 2px;
}
.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-size: 0.95rem;
  color: var(--text-dim);
}
.nav-links a { transition: color 0.2s ease; }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.icon-btn:hover { color: var(--text); border-color: var(--accent); }
.icon-btn .moon { display: none; }
[data-theme="light"] .icon-btn .sun { display: none; }
[data-theme="light"] .icon-btn .moon { display: block; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

/* ===== Hero ===== */
.hero { position: relative; padding: 84px 0 64px; overflow: hidden; }
.hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 700px;
  background: radial-gradient(closest-side, rgba(110, 91, 255, 0.28), transparent 70%),
              radial-gradient(closest-side, rgba(79, 140, 255, 0.22), transparent 70%);
  background-position: 30% 30%, 70% 40%;
  background-repeat: no-repeat;
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 500;
}
.pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(46, 160, 67, 0.18);
}
.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 20px 0 18px;
}
.lede { font-size: 1.12rem; color: var(--text-dim); max-width: 36ch; }
.lede code { color: var(--accent); }
.hero-cta { display: flex; gap: 14px; margin: 28px 0 22px; flex-wrap: wrap; }
.hero-meta {
  list-style: none;
  display: flex;
  gap: 26px;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}
.hero-meta strong { color: var(--text); }

/* ===== Window mockup ===== */
.window {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-2);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}
.traffic { width: 11px; height: 11px; border-radius: 50%; }
.traffic.r { background: #ff5f57; }
.traffic.y { background: #febc2e; }
.traffic.g { background: #28c840; }
.window-title { margin-left: 8px; font-size: 0.82rem; color: var(--text-dim); }
.brain-badge {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  color: var(--green);
  font-family: var(--mono);
}
.brain-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.window-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.chat-msg { display: flex; flex-direction: column; gap: 4px; }
.chat-msg .who {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.chat-msg p {
  margin: 0;
  padding: 10px 13px;
  border-radius: 12px;
  font-size: 0.92rem;
  align-self: flex-start;
}
.chat-msg.user p { background: var(--bg-3); border: 1px solid var(--border); }
.chat-msg.devon p {
  background: linear-gradient(120deg, rgba(79,140,255,0.16), rgba(110,91,255,0.16));
  border: 1px solid rgba(110, 91, 255, 0.35);
}
.chat-msg code { color: var(--accent); }
.tool-run {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  padding: 12px;
  font-family: var(--mono);
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.tool-line { color: var(--text-dim); }
.tool-out { color: var(--text); padding-left: 2px; }
.tool-out.ok { color: var(--green); }
.tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 6px;
  font-size: 0.72rem;
  margin-right: 8px;
  font-weight: 600;
}
.tag.write { background: rgba(110, 91, 255, 0.18); color: var(--accent-2); }
.tag.run { background: rgba(79, 140, 255, 0.18); color: var(--accent); }

/* ===== Strip ===== */
.strip { border-block: 1px solid var(--border-soft); background: var(--bg-2); }
.strip-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 40px;
  padding: 22px 0;
  font-family: var(--mono);
  color: var(--text-dim);
  font-size: 0.92rem;
}
.strip-inner span { opacity: 0.7; transition: opacity 0.2s ease, color 0.2s ease; }
.strip-inner span:hover { opacity: 1; color: var(--accent); }

/* ===== Sections ===== */
.section { padding: 92px 0; }
.section-alt { background: var(--bg-2); border-block: 1px solid var(--border-soft); }
.section-head { max-width: 640px; margin: 0 auto 52px; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  font-weight: 700;
}
.section-head p { color: var(--text-dim); margin: 0; font-size: 1.05rem; }

/* ===== Flow ===== */
.flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.flow-node {
  flex: 1 1 200px;
  max-width: 240px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-card);
  padding: 22px 20px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.flow-node:hover { transform: translateY(-4px); border-color: var(--accent); }
.flow-node h3 { margin: 0 0 6px; font-size: 1.08rem; }
.flow-node p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.flow-node.accent {
  border-color: rgba(110, 91, 255, 0.5);
  background: linear-gradient(160deg, rgba(79,140,255,0.1), rgba(110,91,255,0.1));
}
.flow-arrow {
  display: flex;
  align-items: center;
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
}
.loop-note {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-top: 36px;
  padding: 14px 20px;
  width: fit-content;
  margin-inline: auto;
  border: 1px dashed var(--border);
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 0.95rem;
}
.loop-note svg { color: var(--accent); }

/* ===== Feature grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
  padding: 26px 24px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.card-icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: linear-gradient(160deg, rgba(79,140,255,0.16), rgba(110,91,255,0.16));
  border: 1px solid var(--border);
  font-size: 1.3rem;
  margin-bottom: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--text-dim); font-size: 0.96rem; }
.card code { color: var(--accent); }

/* ===== Backends ===== */
.backends {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}
.backend {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
  padding: 26px 24px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.backend:hover { transform: translateY(-4px); }
.backend.featured {
  border-color: rgba(110, 91, 255, 0.55);
  background: linear-gradient(165deg, rgba(79,140,255,0.1), rgba(110,91,255,0.08));
  box-shadow: var(--shadow);
}
.backend header { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.backend h3 { margin: 0; font-size: 1.25rem; }
.backend-sub { color: var(--text); font-weight: 600; margin: 0 0 10px; font-size: 0.95rem; }
.backend p { color: var(--text-dim); margin: 0 0 18px; font-size: 0.95rem; }
.tag-soft {
  font-size: 0.72rem;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-weight: 600;
}
.tag-soft.hot {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
}
.backend-env {
  display: block;
  padding: 10px 12px;
  border-radius: 9px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.82rem;
}

/* ===== Download ===== */
.download-inner { max-width: 620px; text-align: center; }
.download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 36px 28px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.download-card .pill { margin-bottom: 4px; }
.download-card .btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}
.download-note {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.5;
  max-width: 420px;
  margin: 12px auto 0;
}

.download-meta {
  display: flex;
  gap: 12px;
  justify-content: center;
  font-size: 13px;
  color: var(--text-dim);
  margin: 0 0 8px;
  min-height: 1.2em;
}

.download-meta span:empty {
  display: none;
}

.download-more {
  margin: 12px 0 0;
  font-size: 13px;
}

.download-more a {
  color: var(--accent);
  text-decoration: none;
}

.download-reqs {
  margin-top: 40px;
  text-align: left;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.download-reqs h2 {
  font-size: 18px;
  margin: 0 0 12px;
  text-align: center;
}

.download-feats {
  text-align: left;
  margin-bottom: 16px;
}

.download-tip {
  text-align: center;
  color: var(--text-dim);
  margin-top: 10px;
}
.code-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg);
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}
.code-file { font-size: 0.8rem; color: var(--text-dim); font-family: var(--mono); }
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  font-weight: 600;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.copy-btn:hover { color: var(--text); border-color: var(--accent); }
.copy-btn.copied { color: var(--green); border-color: var(--green); }
.code-card pre { margin: 0; padding: 18px; overflow-x: auto; }
.code-card code { font-family: var(--mono); font-size: 0.88rem; line-height: 1.8; color: var(--text); }
.c-com { color: var(--text-dim); font-style: italic; }
.c-cmd { color: var(--accent); }
.c-var { color: var(--accent-2); }
.c-str { color: var(--green); }

/* ===== CTA ===== */
.cta { padding: 96px 0; position: relative; overflow: hidden; }
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(110, 91, 255, 0.18), transparent 60%);
  pointer-events: none;
}
.cta-inner { position: relative; text-align: center; max-width: 620px; }
.cta-inner h2 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  font-weight: 800;
}
.cta-inner p { color: var(--text-dim); margin: 0 0 28px; font-size: 1.08rem; }
.cta-inner .hero-cta { justify-content: center; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); background: var(--bg-2); padding: 48px 0 28px; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-soft);
}
.footer-brand { display: flex; gap: 14px; max-width: 360px; }
.footer-brand strong { font-size: 1.05rem; }
.footer-brand p { margin: 4px 0 0; color: var(--text-dim); font-size: 0.9rem; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; color: var(--text-dim); font-size: 0.92rem; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 22px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ===== Page header (sub pages) ===== */
.page-head {
  position: relative;
  padding: 72px 0 40px;
  text-align: center;
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% -10%, rgba(110, 91, 255, 0.16), transparent 60%);
  pointer-events: none;
}
.page-head h1 {
  position: relative;
  font-size: clamp(2rem, 4.4vw, 3rem);
  letter-spacing: -0.02em;
  margin: 14px 0 10px;
  font-weight: 800;
}
.page-head p { position: relative; color: var(--text-dim); margin: 0; }
.page-head .updated { font-size: 0.88rem; }

/* ===== Legal / doc content ===== */
.doc { padding: 16px 0 88px; }
.doc-inner { max-width: 760px; margin-inline: auto; }
.doc h2 {
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin: 40px 0 10px;
  padding-top: 8px;
}
.doc h3 { font-size: 1.08rem; margin: 26px 0 8px; }
.doc p, .doc li { color: var(--text-dim); }
.doc ul { padding-left: 22px; margin: 10px 0; }
.doc li { margin: 6px 0; }
.doc a { color: var(--accent); }
.doc a:hover { text-decoration: underline; }
.doc strong { color: var(--text); }
.doc .lead { font-size: 1.08rem; }
.doc hr { border: 0; border-top: 1px solid var(--border-soft); margin: 40px 0; }

/* ===== Pricing page ===== */
.price { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.02em; margin: 4px 0 2px; color: var(--text); }
.price span { font-size: 0.95rem; font-weight: 500; color: var(--text-dim); }
.plan-feats { list-style: none; padding: 0; margin: 16px 0 22px; display: flex; flex-direction: column; gap: 9px; }
.plan-feats li { color: var(--text-dim); font-size: 0.92rem; padding-left: 26px; position: relative; }
.plan-feats li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--grad);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 12px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 12px no-repeat;
}
.backend .btn { width: 100%; }
.faq { max-width: 760px; margin: 56px auto 0; }
.faq h3 { margin: 22px 0 6px; font-size: 1.05rem; }
.faq p { color: var(--text-dim); margin: 0; }

/* ===== Auth pages ===== */
.auth-section {
  position: relative;
  min-height: calc(100vh - 68px);
  display: grid;
  place-items: center;
  padding: 56px 0;
  overflow: hidden;
}
.auth-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% -10%, rgba(110, 91, 255, 0.18), transparent 60%);
  pointer-events: none;
}
.auth-card {
  position: relative;
  width: min(440px, 100% - 40px);
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-card);
  box-shadow: var(--shadow);
  padding: 34px 32px;
}
.auth-card .auth-logo { display: flex; justify-content: center; margin-bottom: 14px; }
.auth-card h1 {
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  text-align: center;
  font-weight: 800;
}
.auth-sub { text-align: center; color: var(--text-dim); margin: 0 0 24px; font-size: 0.95rem; }
.field { margin-bottom: 16px; }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--text);
}
.input,
select.input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.input::placeholder { color: var(--text-dim); }
.input:focus,
select.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}
.field-hint { font-size: 0.8rem; color: var(--text-dim); margin: 6px 0 0; }
.field-error { font-size: 0.8rem; color: var(--red); margin: 6px 0 0; min-height: 0; }
.input-wrap { position: relative; }
.input-wrap .input { padding-right: 64px; }
.pw-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 0;
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
}
.pw-toggle:hover { color: var(--accent); }
.btn-full { width: 100%; }
.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.checkbox input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; }
.checkbox a { color: var(--accent); }
.auth-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  font-size: 0.88rem;
}
.auth-row a { color: var(--accent); }
.auth-meta { text-align: center; color: var(--text-dim); font-size: 0.92rem; margin: 22px 0 0; }
.auth-meta a { color: var(--accent); font-weight: 600; }
.auth-sep {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-dim);
  font-size: 0.82rem;
  margin: 20px 0;
}
.auth-sep::before,
.auth-sep::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.btn-google {
  width: 100%;
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  gap: 10px;
}
.btn-google:hover { border-color: var(--accent); }
.alert {
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 0.9rem;
  margin-bottom: 18px;
  border: 1px solid transparent;
}
.alert.error { background: rgba(248, 81, 73, 0.12); border-color: rgba(248, 81, 73, 0.4); color: #ff8b84; }
.alert.success { background: rgba(46, 160, 67, 0.12); border-color: rgba(46, 160, 67, 0.4); color: #4ad66d; }
.alert.info { background: rgba(79, 140, 255, 0.12); border-color: rgba(79, 140, 255, 0.4); color: var(--accent); }
.auth-step { display: none; }
.auth-step.active { display: block; }
[hidden] { display: none !important; }

/* Account page */
.account-card .acct-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.95rem;
}
.account-card .acct-row:last-of-type { border-bottom: 0; }
.account-card .acct-row span:first-child { color: var(--text-dim); }
.account-card .acct-row span:last-child { color: var(--text); font-weight: 600; }
.badge-plan {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--grad);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: capitalize;
}

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .lede { max-width: none; }
  .grid, .backends { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    padding: 18px 24px;
    gap: 18px;
  }
}
@media (max-width: 620px) {
  .grid, .backends { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 40px; }
  .footer-inner { flex-direction: column; }
}

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

/* ===== Language picker ===== */
.lang-picker-slot { position: relative; }
.lang-picker { position: relative; }
.lang-picker-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}
.lang-picker-btn:hover { border-color: var(--accent); color: var(--accent); }
.lang-picker-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 6px;
  z-index: 60;
}
.lang-option {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.88rem;
  cursor: pointer;
  text-align: left;
}
.lang-option:hover { background: var(--bg-3); }
.lang-option.active { background: rgba(79, 140, 255, 0.12); color: var(--accent); }
.lang-option-en { color: var(--text-dim); font-size: 0.8rem; }

/* ===== Nav auth ===== */
.nav-auth {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-user {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dim);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Pricing tokens ===== */
.token-highlight {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  margin: 8px 0 12px;
}

/* ===== Checkout ===== */
.checkout-card { max-width: 440px; }
.checkout-demo-banner {
  background: rgba(210, 153, 34, 0.15);
  border: 1px solid rgba(210, 153, 34, 0.4);
  color: var(--yellow);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 20px;
  text-align: center;
}
.checkout-summary {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px 16px;
  margin-bottom: 20px;
}
.checkout-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.92rem;
}
.checkout-row:last-child { border-bottom: 0; }
.checkout-row span:first-child { color: var(--text-dim); }
.checkout-row strong { color: var(--text); }

/* ===== Payment page ===== */
.payment-section { padding-top: 48px; padding-bottom: 64px; }
.payment-layout { width: 100%; max-width: 560px; margin: 0 auto; }
.payment-alert { margin-bottom: 16px; }
.payment-header { text-align: center; margin-bottom: 28px; }
.payment-header h1 { margin: 8px 0 10px; font-size: clamp(1.6rem, 4vw, 2rem); }
.payment-plan-picker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}
.payment-plan-opt {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.payment-plan-opt:hover { border-color: var(--accent); }
.payment-plan-opt.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.payment-plan-opt.featured { background: linear-gradient(180deg, rgba(79, 140, 255, 0.08), var(--surface)); }
.payment-plan-name { font-weight: 700; font-size: 1rem; color: var(--text); }
.payment-plan-price { font-size: 1.25rem; font-weight: 800; color: var(--text); }
.payment-plan-price span { font-size: 0.85rem; font-weight: 500; color: var(--text-dim); }
.payment-plan-tokens { font-size: 0.82rem; color: var(--accent); font-weight: 600; }
.payment-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  background: var(--surface);
}
.payment-summary-title { font-size: 1rem; margin: 0 0 12px; color: var(--text-dim); font-weight: 600; }
.payment-current { font-size: 0.88rem; color: var(--text-dim); margin: 0 0 16px; }
.payment-total { font-size: 1.05rem; }
.payment-total strong { color: var(--accent); font-size: 1.15rem; }
.payment-trust {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.payment-trust a { color: var(--accent); }
.payment-trust li::before { content: "✓ "; color: var(--green, #3fb950); }
.payment-success-card { text-align: center; }
.payment-success-card .btn { margin-top: 10px; }
.footer-min { padding: 24px 0; border-top: 1px solid var(--border-soft); margin-top: 32px; }
.footer-min .footer-copy { margin: 0; font-size: 0.85rem; color: var(--text-dim); text-align: center; }
@media (max-width: 520px) {
  .payment-plan-picker { grid-template-columns: 1fr; }
}

@media (max-width: 920px) {
  .nav-user { display: none; }
}

/* ===== Language picker ===== */
.lang-picker-slot { position: relative; }
.lang-picker { position: relative; }
.lang-picker-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--sans);
}
.lang-picker-btn:hover { color: var(--text); border-color: var(--accent); }
.lang-chevron { font-size: 0.7rem; opacity: 0.7; }
.lang-picker-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-2);
  box-shadow: var(--shadow);
  padding: 6px;
  z-index: 60;
}
.lang-option {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 9px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.88rem;
  cursor: pointer;
  text-align: left;
}
.lang-option:hover, .lang-option.active { background: rgba(79, 140, 255, 0.12); }
.lang-option-en { color: var(--text-dim); font-size: 0.78rem; }

/* ===== Nav auth ===== */
.nav-auth {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-user {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-user:hover { color: var(--accent); }
.btn-nav-logout { padding: 8px 14px; font-size: 0.85rem; }

/* ===== Checkout ===== */
.checkout-card { max-width: 480px; }
.checkout-demo-banner {
  background: rgba(210, 153, 34, 0.15);
  border: 1px solid rgba(210, 153, 34, 0.4);
  color: var(--yellow);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.88rem;
  margin-bottom: 18px;
  text-align: center;
}
.checkout-summary {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 20px;
  background: var(--bg);
}
.checkout-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.92rem;
}
.checkout-row span:first-child { color: var(--text-dim); }
.token-highlight { color: var(--accent); font-weight: 600; }

.checkout-empty {
  min-height: 100vh;
  margin: 0;
  background: var(--bg, #0d1117);
  display: grid;
  place-items: center;
  padding: 24px;
}
.checkout-loading { color: var(--text-dim, #8b949e); font-family: var(--sans, system-ui, sans-serif); }
.checkout-error { color: #f85149; text-align: center; max-width: 420px; line-height: 1.5; }
.checkout-back { margin-top: 16px; text-align: center; }
.checkout-back a { color: var(--accent, #4f8cff); }

.checkout-page {
  min-height: calc(100vh - 72px);
  padding: 48px 24px 64px;
}
.checkout-layout {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}
.checkout-header {
  text-align: center;
  margin-bottom: 24px;
}
.checkout-header h1 {
  margin: 8px 0 6px;
  font-size: clamp(1.5rem, 4vw, 1.85rem);
}
.paddle-inline-wrap {
  width: 100%;
  min-height: 420px;
  margin-top: 8px;
}
.paddle-checkout-container {
  width: 100%;
}
.checkout-success-panel {
  padding-top: 24px;
}
[dir="rtl"] .nav-auth { flex-direction: row-reverse; }
[dir="rtl"] .lang-picker-menu { right: auto; left: 0; }

/* ===== Payment page ===== */
.payment-section { padding-top: 48px; padding-bottom: 64px; }
.payment-layout { width: 100%; max-width: 560px; margin: 0 auto; }
.payment-alert { margin-bottom: 16px; }
.payment-header { text-align: center; margin-bottom: 28px; }
.payment-header h1 { margin: 8px 0 10px; font-size: clamp(1.6rem, 4vw, 2rem); }
.payment-plan-picker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}
.payment-plan-opt {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: var(--sans);
}
.payment-plan-opt:hover { border-color: var(--accent); }
.payment-plan-opt.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.payment-plan-opt.featured { background: linear-gradient(180deg, rgba(79, 140, 255, 0.08), var(--surface)); }
.payment-plan-name { font-weight: 700; font-size: 1rem; color: var(--text); }
.payment-plan-price { font-size: 1.25rem; font-weight: 800; color: var(--text); }
.payment-plan-price span { font-size: 0.85rem; font-weight: 500; color: var(--text-dim); }
.payment-plan-tokens { font-size: 0.82rem; color: var(--accent); font-weight: 600; }
.payment-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  background: var(--surface);
}
.payment-summary-title { font-size: 1rem; margin: 0 0 12px; color: var(--text-dim); font-weight: 600; }
.payment-current { font-size: 0.88rem; color: var(--text-dim); margin: 0 0 16px; }
.payment-total { font-size: 1.05rem; }
.payment-total strong { color: var(--accent); font-size: 1.15rem; }
.payment-trust {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.payment-trust a { color: var(--accent); }
.payment-trust li::before { content: "✓ "; color: #3fb950; }
.payment-success-card { text-align: center; }
.payment-success-card .btn { margin-top: 10px; }
.footer-min { padding: 24px 0; border-top: 1px solid var(--border-soft); margin-top: 32px; }
.footer-min .footer-copy { margin: 0; font-size: 0.85rem; color: var(--text-dim); text-align: center; }
@media (max-width: 520px) {
  .payment-plan-picker { grid-template-columns: 1fr; }
}