/* ===========================
   OpenClaw — landing styles
   v2: depth, gradient mesh, glow, motion
   =========================== */

:root {
  --bg:        #060710;
  --bg-2:      #0b0d18;
  --surface:   #11131e;
  --surface-2: #181b29;
  --border:    #232739;
  --border-strong: #2f3450;
  --text:      #f1f3f8;
  --text-dim:  #9aa3b2;
  --text-mute: #5e6577;
  --accent:    #7c5cff;
  --accent-2:  #ff5cd6;
  --accent-3:  #5cf0ff;
  --accent-soft: rgba(124, 92, 255, 0.12);
  --max: 1180px;

  --grad-primary: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-cool:    linear-gradient(135deg, var(--accent-3) 0%, var(--accent) 100%);
  --grad-text:    linear-gradient(180deg, #ffffff 0%, #b4bbcc 100%);
  --glow-purple:  0 0 60px rgba(124, 92, 255, 0.35);
  --glow-pink:    0 0 80px rgba(255, 92, 214, 0.25);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.85; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; position: relative; }

/* ============ background mesh — fixed, doesn't scroll ============ */
.mesh {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(124, 92, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 70% 60% at 90% 10%, rgba(255, 92, 214, 0.14), transparent 60%),
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(92, 240, 255, 0.08), transparent 60%),
    var(--bg);
  pointer-events: none;
}
.mesh::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.025) 1px, transparent 0);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, transparent, black 200px, black 60%, transparent);
  -webkit-mask-image: linear-gradient(180deg, transparent, black 200px, black 60%, transparent);
}

/* ============ nav ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 7, 16, 0.65);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; max-width: var(--max); margin: 0 auto; padding: 0 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 17px; color: var(--text);
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 30px; height: 30px;
  background: var(--grad-primary);
  border-radius: 9px;
  display: grid; place-items: center;
  color: white; font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 16px rgba(124, 92, 255, 0.35);
}
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a {
  color: var(--text-dim); font-size: 14.5px; font-weight: 500;
}
.nav-links a:hover { color: var(--text); opacity: 1; }
.nav-cta {
  background: var(--grad-primary);
  color: white !important;
  padding: 9px 18px; border-radius: 10px;
  font-weight: 600; font-size: 14px;
  box-shadow: 0 4px 18px rgba(124, 92, 255, 0.35);
  transition: transform 0.15s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(124, 92, 255, 0.5); opacity: 1; }
@media (max-width: 720px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* ============ buttons ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 12px;
  font-weight: 600; font-size: 15px;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  border: none; cursor: pointer;
  position: relative; overflow: hidden;
}
.btn:hover { transform: translateY(-1px); opacity: 1; }
.btn-primary {
  background: var(--grad-primary);
  color: white;
  box-shadow: 0 6px 24px rgba(124, 92, 255, 0.4);
}
.btn-primary:hover { box-shadow: 0 10px 32px rgba(124, 92, 255, 0.55); }
.btn-primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,0.18), transparent 60%);
  transform: translateX(-100%); transition: transform 0.6s;
}
.btn-primary:hover::after { transform: translateX(100%); }
.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--accent); }
.btn-arrow {
  display: inline-block; transition: transform 0.2s;
}
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ============ hero ============ */
.hero {
  padding: 110px 0 90px;
  text-align: center;
  position: relative;
}
.hero-glow {
  position: absolute; top: 50%; left: 50%;
  width: 720px; height: 720px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 60%);
  filter: blur(80px);
  pointer-events: none;
  z-index: -1;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px;
  background: rgba(124, 92, 255, 0.1);
  border: 1px solid rgba(124, 92, 255, 0.3);
  color: #a892ff;
  border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.02em;
  margin-bottom: 28px;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 12px var(--accent-2);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

h1.display {
  font-size: clamp(44px, 7vw, 88px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin-bottom: 24px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
h1.display .accent {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.lead {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.55;
}
.hero-ctas {
  display: flex; gap: 14px;
  justify-content: center; flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-meta {
  display: inline-flex; gap: 24px; flex-wrap: wrap; justify-content: center;
  color: var(--text-mute); font-size: 13px;
  margin-bottom: 64px;
}
.hero-meta .dot { color: var(--accent); font-size: 16px; }

/* phone mockup */
.phone-stage {
  position: relative;
  display: flex; justify-content: center;
  margin: 0 auto;
  perspective: 1200px;
  animation: float 8s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.phone {
  width: min(320px, 80vw);
  filter: drop-shadow(0 40px 80px rgba(124, 92, 255, 0.45)) drop-shadow(0 80px 120px rgba(0, 0, 0, 0.55));
}
.phone-orbit {
  position: absolute; top: 50%; left: 50%;
  width: 600px; height: 600px;
  transform: translate(-50%, -50%);
  background: conic-gradient(from 180deg, transparent, var(--accent) 50%, transparent);
  border-radius: 50%;
  opacity: 0.08;
  filter: blur(40px);
  z-index: -1;
  animation: spin 30s linear infinite;
}
@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============ sections ============ */
section {
  padding: 100px 0;
  position: relative;
}
section.alt {
  background: linear-gradient(180deg, transparent, var(--bg-2) 8%, var(--bg-2) 92%, transparent);
}
.section-eyebrow {
  display: block; text-align: center;
  color: var(--accent); font-size: 13px;
  text-transform: uppercase; letter-spacing: 0.12em;
  font-weight: 700;
  margin-bottom: 14px;
}
h2 {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-align: center;
  margin-bottom: 18px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-sub {
  text-align: center; color: var(--text-dim);
  font-size: 17px; max-width: 640px; margin: 0 auto 64px;
  line-height: 1.55;
}

/* ============ feature grid v2 ============ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 30px 28px;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 44px; height: 44px;
  background: var(--accent-soft);
  border: 1px solid rgba(124, 92, 255, 0.2);
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.card h3 {
  font-size: 17px; font-weight: 600;
  margin-bottom: 8px; color: var(--text);
  letter-spacing: -0.01em;
}
.card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.55; }

/* "feature row" — alternating big-card layout */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 100px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
@media (max-width: 860px) {
  .feature-row { grid-template-columns: 1fr; gap: 40px; }
  .feature-row.reverse { direction: ltr; }
}
.feature-row .copy-eyebrow {
  display: inline-block;
  padding: 5px 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(124, 92, 255, 0.25);
  color: #a892ff;
  border-radius: 999px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.05em;
  margin-bottom: 18px;
}
.feature-row h3 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.15;
}
.feature-row p {
  color: var(--text-dim); font-size: 16.5px;
  line-height: 1.6; margin-bottom: 18px;
}
.feature-row ul {
  list-style: none; padding: 0;
}
.feature-row li {
  padding: 8px 0; color: var(--text-dim); font-size: 15px;
  display: flex; align-items: flex-start; gap: 12px;
}
.feature-row li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 2px;
}
.visual {
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.08), rgba(255, 92, 214, 0.05));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px;
  min-height: 320px;
  display: grid; place-items: center;
  position: relative; overflow: hidden;
}
.visual::before {
  content: ""; position: absolute;
  width: 200px; height: 200px;
  background: var(--grad-primary); opacity: 0.18;
  border-radius: 50%; filter: blur(60px);
  top: -50px; right: -50px;
}

/* ============ how it works ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.steps::before {
  content: ""; position: absolute;
  top: 22px; left: 12%; right: 12%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
  z-index: 0;
}
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
  .steps::before { display: none; }
}
.step {
  text-align: center; padding: 20px 12px;
  position: relative; z-index: 1;
  background: var(--bg-2);
  border-radius: 20px;
}
.step-num {
  width: 46px; height: 46px;
  background: var(--grad-primary);
  border-radius: 50%;
  color: white;
  font-weight: 800; font-size: 18px;
  display: grid; place-items: center;
  margin: 0 auto 18px;
  box-shadow: 0 6px 20px rgba(124, 92, 255, 0.4);
}
.step h4 { font-size: 17px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
.step p { color: var(--text-dim); font-size: 14.5px; }

/* ============ pricing ============ */
.pricing-card {
  max-width: 440px; margin: 0 auto;
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.08), rgba(255, 92, 214, 0.03));
  border: 1px solid rgba(124, 92, 255, 0.4);
  border-radius: 24px; padding: 48px 40px;
  text-align: center;
  box-shadow: var(--glow-purple), 0 30px 80px rgba(0, 0, 0, 0.4);
  position: relative; overflow: hidden;
}
.pricing-card::before {
  content: ""; position: absolute; inset: -1px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.5), transparent);
  z-index: -1;
  padding: 1px;
  -webkit-mask: linear-gradient(white, white) content-box, linear-gradient(white, white);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}
.pricing-card .price-tag {
  font-size: 64px; font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.pricing-card .price-unit { color: var(--text-dim); font-size: 17px; font-weight: 500; }
.pricing-card .trial {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(92, 240, 255, 0.1);
  border: 1px solid rgba(92, 240, 255, 0.3);
  color: var(--accent-3);
  border-radius: 999px;
  font-size: 13px; font-weight: 600;
  margin: 14px 0 32px;
}
.pricing-card ul {
  list-style: none; text-align: left;
  margin: 0 0 32px;
}
.pricing-card li {
  padding: 10px 0;
  color: var(--text-dim); font-size: 15px;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.pricing-card li:last-child { border-bottom: none; }
.pricing-card li::before {
  content: "✓"; color: var(--accent); font-weight: 800;
  flex-shrink: 0;
}

/* ============ faq ============ */
.faq { max-width: 760px; margin: 0 auto; }
details {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s, background 0.2s;
}
details[open] {
  border-color: rgba(124, 92, 255, 0.4);
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.04), transparent);
}
summary {
  cursor: pointer;
  padding: 22px 26px;
  font-weight: 600; font-size: 16.5px;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
summary:hover { color: var(--accent); }
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "";
  width: 12px; height: 12px;
  border-right: 2px solid var(--text-dim);
  border-bottom: 2px solid var(--text-dim);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
  margin-left: 16px;
  flex-shrink: 0;
}
details[open] summary::after { transform: rotate(-135deg); }
.faq-body {
  padding: 0 26px 22px;
  color: var(--text-dim);
  font-size: 15.5px;
  line-height: 1.65;
}

/* ============ prose ============ */
.prose {
  max-width: 780px;
  margin: 80px auto;
  padding: 0 24px;
}
.prose h1 {
  font-size: 44px; margin-bottom: 8px;
  letter-spacing: -0.025em; font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.prose .meta { color: var(--text-mute); font-size: 14px; margin-bottom: 48px; }
.prose h2 {
  text-align: left; font-size: 24px; margin: 40px 0 14px;
  letter-spacing: -0.01em;
  background: none;
  color: var(--text);
  -webkit-text-fill-color: initial;
}
.prose h3 { font-size: 17px; font-weight: 600; margin: 24px 0 10px; color: var(--text); }
.prose p, .prose li { color: var(--text-dim); margin-bottom: 12px; line-height: 1.7; font-size: 15.5px; }
.prose ul, .prose ol { padding-left: 26px; margin-bottom: 18px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose code {
  background: var(--surface);
  padding: 2px 8px; border-radius: 5px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 13.5px;
  color: var(--accent-3);
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14.5px;
}
.prose th, .prose td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
}
.prose th { color: var(--text); font-weight: 600; }

/* ============ footer ============ */
footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 36px;
  background: var(--bg-2);
  position: relative;
}
footer::before {
  content: ""; position: absolute; top: -1px; left: 50%;
  transform: translateX(-50%);
  width: 80%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer-brand { color: var(--text-dim); font-size: 14.5px; margin-top: 14px; max-width: 320px; line-height: 1.55; }
.footer-col h5 {
  color: var(--text); font-size: 12px;
  font-weight: 700; margin-bottom: 16px;
  text-transform: uppercase; letter-spacing: 0.1em;
}
.footer-col a {
  display: block; color: var(--text-dim);
  font-size: 14.5px; padding: 6px 0;
}
.footer-col a:hover { color: var(--text); opacity: 1; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--text-mute); font-size: 13px;
}
@media (max-width: 640px) {
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
}

/* ============ scroll reveal — pure CSS ============ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  animation: reveal 0.8s ease-out forwards;
  animation-delay: var(--reveal-delay, 0s);
}
@keyframes reveal {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; transform: none; }
  .phone-stage { animation: none; }
  .phone-orbit { animation: none; }
  .eyebrow-dot { animation: none; }
}