/* Tokens from UI_RULES.md */
:root {
  --accent:      #0a84ff;
  --accent-rgb:  10, 132, 255;
  --accent-soft: rgba(10, 132, 255, 0.16);

  --brand-a: #0a84ff; /* blue */
  --brand-b: #7d8896; /* grey */
  --gradient-main: linear-gradient(135deg, var(--brand-b), var(--brand-a)); /* grey leads */

  --danger:  #ff453a;
  --warning: #f59e0b;
  --success: #34d399;

  --bg-deep:           #050507;
  --glass-bg:          rgba(10, 10, 13, 0.66);
  --glass-bg-strong:   rgba(14, 14, 18, 0.86);
  --glass-bg-soft:     rgba(255, 255, 255, 0.045);
  --glass-bg-softer:   rgba(255, 255, 255, 0.025);
  --glass-border:      rgba(255, 255, 255, 0.11);
  --glass-border-soft: rgba(255, 255, 255, 0.07);
  --glass-highlight:   rgba(255, 255, 255, 0.14);
  --glass-blur:        38px;

  --text-primary:   #f5f5f7;
  --text-secondary: rgba(235, 235, 245, 0.68);
  --text-muted:     rgba(235, 235, 245, 0.42);

  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', 'Inter', system-ui, sans-serif;
  --mono: 'SF Mono', 'SFMono-Regular', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;

  --radius-sm:    10px;
  --radius-md:    14px;
  --radius-panel: 20px;

  --shadow-panel: 0 24px 60px rgba(0,0,0,0.5), 0 2px 12px rgba(0,0,0,0.3);
  --shadow-float: 0 30px 70px rgba(0,0,0,0.55), 0 4px 16px rgba(0,0,0,0.35);

  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --transition:  0.18s var(--ease-out);

  /* layout tokens, adjusted per breakpoint below */
  --nav-height: 66px;
  --container-pad-x: 24px;
  --section-pad-y: 60px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-deep:           #eef0f3;
    --glass-bg:          rgba(255, 255, 255, 0.58);
    --glass-bg-strong:   rgba(255, 255, 255, 0.82);
    --glass-bg-soft:     rgba(0, 0, 0, 0.035);
    --glass-bg-softer:   rgba(0, 0, 0, 0.02);
    --glass-border:      rgba(0, 0, 0, 0.08);
    --glass-border-soft: rgba(0, 0, 0, 0.05);
    --glass-highlight:   rgba(255, 255, 255, 0.85);
    --glass-blur:        34px;

    --text-primary:   #1d1d1f;
    --text-secondary: rgba(60, 60, 67, 0.68);
    --text-muted:     rgba(60, 60, 67, 0.44);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0; padding: 0;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; height: auto; display: block; }

.brand-name {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.brand-name img {
  margin-right: -12px;
  flex-shrink: 0;
}

.brand-name span:not(.accent) { white-space: nowrap; }

/* Utility classes (moved off inline styles for responsive control) */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  font-size: 13px;
}
.price-head { margin-bottom: 30px; }
.price-kicker {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 700;
}
.price-kicker-accent { color: var(--accent); }
.workflow-item {
  background: var(--glass-bg-soft);
  padding: 16px;
  border-radius: 12px;
}
.workflow-item h4 { margin-bottom: 6px; }
.workflow-item p { margin: 0; font-size: 14px; }
.workflow-head-success { color: var(--success); }
.hero-cta-center { justify-content: center; margin-top: 40px; }

/* Background Blobs */
.bg-blobs {
  position: fixed; inset: 0; z-index: -1;
  overflow: hidden; pointer-events: none;
}
.blob {
  position: absolute; border-radius: 50%;
  filter: blur(110px);
  animation: float 22s infinite ease-in-out;
}
.blob-1 { width: 500px; height: 500px; background: var(--brand-b); top: -140px; left: -120px; opacity: 0.16; animation-delay: 0s; }
.blob-2 { width: 550px; height: 550px; background: var(--accent); bottom: -160px; right: -120px; opacity: 0.16; animation-delay: 5s; }
.blob-3 { width: 420px; height: 420px; background: var(--brand-a); top: 38%; left: 38%; opacity: 0.1; animation-delay: 10s; }

@media (prefers-color-scheme: light) {
  .blob { opacity: 0.35 !important; }
}

@keyframes float {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(50px, -35px) scale(1.08); }
  66%  { transform: translate(-35px, 50px) scale(0.96); }
  100% { transform: translate(0, 0) scale(1); }
}

/* Glass Panel Base */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-panel);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  box-shadow: var(--shadow-panel), inset 0 1px 0 var(--glass-highlight);
  isolation: isolate;
  position: relative;
}
.glass-panel::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(255,255,255,0.16) 0%, rgba(255,255,255,0.04) 14%, rgba(255,255,255,0) 30%);
  pointer-events: none;
  border-radius: inherit;
}

/* Nav */
.main-nav {
  position: fixed; top: 12px; left: 50%; transform: translateX(-50%);
  z-index: 100;
  width: min(100% - 24px, 1280px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px 12px 24px;
  border-radius: 99px;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  box-shadow: var(--shadow-panel), inset 0 1px 0 var(--glass-highlight);
  gap: 12px;
}
.brand-name { font-weight: 700; font-size: 16px; display: flex; align-items: center; gap: 8px; color: var(--text-primary); }
.brand-name .accent {
  background: var(--gradient-main);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.nav-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 14px; font-family: var(--font);
  cursor: pointer; transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn.large { padding: 14px 24px; font-size: 15px; }

.btn-primary {
  background: var(--accent); color: #fff;
  border: 1px solid rgba(var(--accent-rgb), 0.6);
  box-shadow: 0 4px 16px rgba(var(--accent-rgb), 0.35), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-primary:hover {
  background: #339dff;
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.45), inset 0 1px 0 rgba(255,255,255,0.3);
}

.btn-secondary {
  background: var(--glass-bg-soft); color: var(--text-secondary);
  border: 1px solid var(--glass-border-soft);
}
.btn-secondary:hover { background: var(--glass-bg-strong); border-color: var(--glass-border); color: var(--text-primary); }

/* Typography */
h1, h2, h3, h4 { margin: 0; color: var(--text-primary); letter-spacing: -0.02em; }
p { color: var(--text-secondary); line-height: 1.6; }

/* Hero */
.hero {
  padding: 140px 24px 60px;
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.hero h1 { font-size: 4rem; font-weight: 700; line-height: 1.1; margin-bottom: 24px; }
.hero-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p { font-size: 1.2rem; margin-bottom: 32px; max-width: 600px; }
.hero-cta { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }

.hero-stage { position: relative; display: flex; align-items: center; justify-content: center; min-width: 0; }
.hero-stage img { width: 100%; max-width: 600px; border-radius: 12px; box-shadow: var(--shadow-float); }

/* KBD / Chips */
kbd, .hotkey-chip {
  padding: 2px 6px; border: 1px solid var(--glass-border); border-radius: 5px;
  font-family: var(--mono); font-size: 11px;
  background: var(--glass-bg-soft); box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  color: var(--text-primary); margin: 0 4px;
  display: inline-block;
}
.platform-tag, .signal {
  padding: 6px 12px; background: var(--glass-bg-soft); border: 1px solid var(--glass-border-soft);
  border-radius: 20px; color: var(--text-secondary); font-size: 12px; font-weight: 500;
  display: inline-flex;
}
.signal-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* Feature Grid */
.container { max-width: 1280px; margin: 0 auto; padding: var(--section-pad-y) var(--container-pad-x); }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head h2 { font-size: 2.5rem; margin-bottom: 16px; }
.section-head p { font-size: 1.1rem; max-width: 700px; margin: 0 auto; }

.feature-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.feature-card { padding: 32px; display: flex; flex-direction: column; gap: 16px; overflow: hidden; }
.feature-card img {
  width: calc(100% + 64px);
  max-width: calc(100% + 64px);
  margin: -32px -32px 16px;
  border-bottom: 1px solid var(--glass-border-soft);
  object-fit: cover;
}

/* Workflow */
.workflow { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.workflow-card { padding: 32px; display: flex; flex-direction: column; gap: 16px; }
.workflow-head { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); }

/* Pricing */
.price-hero { text-align: center; padding: 60px; }
.pricing-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.price-card { padding: 40px; display: flex; flex-direction: column; text-align: left; }
.price-card h3 { font-size: 2rem; }
.price-card .price { font-size: 3rem; font-weight: 700; margin: 16px 0; color: var(--text-primary); }
.price-card-featured {
  background: linear-gradient(180deg, var(--accent-soft), transparent);
  border-color: rgba(var(--accent-rgb), 0.5);
}
.checklist { list-style: none; padding: 0; margin: 24px 0 0; }
.checklist li { padding: 12px 0; border-bottom: 1px solid var(--glass-border-soft); color: var(--text-secondary); font-size: 14px; display: flex; align-items: center; gap: 10px; }
.checklist li::before { content: "✓"; color: var(--accent); font-weight: 700; flex-shrink: 0; }

/* FAQ */
.faq-wrap { padding: 40px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { padding: 0; }
.faq-item summary {
  padding: 20px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between;
  color: var(--text-primary); gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding: 0 20px 20px; margin: 0; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.62s var(--ease-out), transform 0.62s var(--ease-out); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* Footer */
footer { text-align: center; padding: 40px 24px; border-top: 1px solid var(--glass-border-soft); margin-top: 60px; color: var(--text-secondary); }
.footer-links { display: flex; justify-content: center; gap: 16px; margin-top: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--text-secondary); font-size: 14px; transition: color var(--transition); }
.footer-links a:hover { color: var(--text-primary); }

/* ==========================================================
   RESPONSIVE — TABLET (≤ 1024px)
   Tighten grids and section rhythm slightly before the
   larger hero/nav restructure that kicks in at 920px/768px.
   ========================================================== */
@media (max-width: 1024px) {
  :root { --section-pad-y: 52px; }
  .hero h1 { font-size: 3.4rem; }
  .section-head h2 { font-size: 2.15rem; }
  .price-card .price { font-size: 2.6rem; }
}

/* ==========================================================
   RESPONSIVE — HERO / LAYOUT STACK (≤ 920px)
   Hero becomes a single column; image moves below copy.
   ========================================================== */
@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 128px;
  }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .signal-row { justify-content: center; }
  .hero-stage { order: 2; }
}

/* ==========================================================
   RESPONSIVE — TABLET/SMALL LAPTOP (≤ 768px)
   Reduce type scale and panel padding; single-column grids
   already fall back naturally via auto-fit.
   ========================================================== */
@media (max-width: 768px) {
  :root { --container-pad-x: 20px; --section-pad-y: 44px; }

  .hero { padding-top: 118px; padding-bottom: 44px; }
  .hero h1 { font-size: 2.6rem; }
  .hero p { font-size: 1.05rem; }

  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 1.85rem; }
  .section-head p { font-size: 1rem; }

  .feature-card { padding: 24px; }
  .feature-card img { width: calc(100% + 48px); max-width: calc(100% + 48px); margin: -24px -24px 16px; }

  .workflow-card { padding: 24px; }

  .price-hero { padding: 32px 24px; }
  .price-card { padding: 28px; }
  .price-card .price { font-size: 2.3rem; }

  .faq-wrap { padding: 24px; }
}

/* ==========================================================
   RESPONSIVE — MOBILE (≤ 640px)
   Nav collapses to a wrapping bar with full-width actions;
   hero content compresses further.
   ========================================================== */
@media (max-width: 640px) {
  .main-nav {
    flex-wrap: wrap;
    justify-content: center;
    border-radius: 24px;
    padding: 14px 16px;
    top: 8px;
    width: calc(100% - 16px);
  }
  .brand-name { font-size: 15px; flex: 1 1 auto; justify-content: center; }
  .nav-actions {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
  .nav-actions .btn {
    flex: 1 1 140px;
    padding: 10px 14px;
    font-size: 13px;
  }

  .hero { padding-top: 152px; }
  .hero h1 { font-size: 2.1rem; }
  .hero p { font-size: 1rem; margin-bottom: 24px; }

  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }

  .signal-row { justify-content: center; }
  .platform-tag, .signal { font-size: 11px; padding: 5px 10px; }

  .pricing-grid { grid-template-columns: 1fr; }
  .price-hero .hero-cta-center { flex-direction: column; }
  .price-hero .hero-cta-center .btn { width: 100%; }

  .footer-links { gap: 12px; }
}

/* ==========================================================
   RESPONSIVE — SMALL MOBILE (≤ 420px)
   Final squeeze for narrow phones.
   ========================================================== */
@media (max-width: 420px) {
  :root { --container-pad-x: 16px; --section-pad-y: 36px; }

  .hero { padding-left: 16px; padding-right: 16px; }
  .hero h1 { font-size: 1.85rem; }

  .section-head h2 { font-size: 1.55rem; }

  .feature-card { padding: 20px; }
  .feature-card img { width: calc(100% + 40px); max-width: calc(100% + 40px); margin: -20px -20px 14px; }

  .price-card { padding: 22px; }
  .price-card .price { font-size: 2rem; }

  kbd, .hotkey-chip { font-size: 10px; padding: 2px 5px; margin: 0 2px; }

  .btn.large { padding: 13px 18px; font-size: 14px; }
}