/* =============================================================
   ZELIUM AI — LANDING PAGE STYLES
   Design: Dark SaaS with glass morphism. "Deep Intelligence."
   Palette: Deep Navy / Violet (#8B5CF6) / Cyan (#06B6D4)
============================================================= */

/* -------------------------------------------------------------
   CSS CUSTOM PROPERTIES
------------------------------------------------------------- */
:root {
  /* Colors */
  --color-bg:            #0B1220;
  --color-surface-mid:   #111827;
  --color-surface-raised:#1E293B;
  --color-accent:        #8B5CF6;
  --color-accent-strong: #7C3AED;
  --color-cta:           #0891B2;
  --color-cyan-bright:   #06B6D4;
  --color-critical:      #EF4444;
  --color-warning:       #F59E0B;
  --color-good:          #22C55E;
  --color-excellent:     #06B6D4;
  --color-text:          #F9FAFB;
  --color-subdued:       #94A3B8;
  --color-muted:         #64748B;
  --color-glass:         rgba(255, 255, 255, 0.04);
  --color-glass-border:  rgba(255, 255, 255, 0.09);
  --color-glass-hover:   rgba(255, 255, 255, 0.07);

  /* Gradients */
  --grad-hero:   linear-gradient(135deg, #0B1220 0%, #111827 50%, #1E293B 100%);
  --grad-cta:    linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
  --grad-bar:    linear-gradient(90deg, #8B5CF6, #06B6D4);
  --grad-text:   linear-gradient(135deg, #8B5CF6 0%, #06B6D4 100%);

  /* Typography */
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;

  /* Layout */
  --container:  1200px;
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-2xl: 24px;

  /* Transitions */
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 200ms;
  --duration-mid:  350ms;
  --duration-slow: 600ms;
}

/* -------------------------------------------------------------
   RESET & BASE
------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul[role="list"] {
  list-style: none;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--color-cyan-bright);
  background: rgba(6, 182, 212, 0.10);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

/* -------------------------------------------------------------
   LAYOUT UTILITIES
------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

/* -------------------------------------------------------------
   NAVIGATION
------------------------------------------------------------- */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  transition: background-color var(--duration-mid) var(--ease-out),
              backdrop-filter var(--duration-mid) var(--ease-out),
              box-shadow var(--duration-mid) var(--ease-out);
}

#nav.nav-scrolled {
  background-color: rgba(11, 18, 32, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-glass-border);
}

.nav-inner {
  height: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-img {
  display: block;
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 8px;
  flex-shrink: 0;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.18);
  background: rgba(255, 255, 255, 0.04);
  box-sizing: content-box;
}

.logo-text {
  color: var(--color-text);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.logo-wordmark {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1;
}

.logo-name {
  color: var(--color-text);
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo-sub {
  color: var(--color-subdued);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo-badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: var(--grad-cta);
  color: #fff;
  padding: 2px 6px;
  border-radius: 999px;
  align-self: flex-start;
  margin-top: 4px;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-subdued);
  transition: color var(--duration-fast);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-text);
  outline: none;
}

/* Nav CTA */
.nav-cta {
  margin-left: var(--space-md);
  flex-shrink: 0;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-fast), opacity var(--duration-fast);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* -------------------------------------------------------------
   BUTTONS
------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  border-radius: var(--radius-lg);
  transition: transform var(--duration-fast) var(--ease-bounce),
              box-shadow var(--duration-fast),
              background var(--duration-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Primary */
.btn-primary {
  background: var(--grad-cta);
  color: #fff;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 24px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.45);
}

.btn-primary:active { transform: translateY(0); }

/* Ghost Violet */
.btn-ghost-violet {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid rgba(139, 92, 246, 0.4);
}

.btn-ghost-violet:hover {
  background: rgba(139, 92, 246, 0.08);
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-subdued);
  border: 1.5px solid var(--color-glass-border);
}

.btn-ghost:hover {
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* Sizes */
.btn-sm  { font-size: 0.8125rem; padding: 8px 16px; border-radius: var(--radius-md); }
.btn-lg  { font-size: 1rem;      padding: 14px 28px; }
.btn-xl  { font-size: 1.125rem;  padding: 18px 40px; border-radius: var(--radius-xl); }

/* Pulsing glow animation on primary CTA */
.btn-pulse {
  animation: btn-pulse 2.8s ease-in-out infinite;
}

/* -------------------------------------------------------------
   BADGES
------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 999px;
}

.badge-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: var(--color-cyan-bright);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Score tier badges */
.score-tier-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 999px;
}

.badge-critical  { background: rgba(239, 68, 68, 0.15);    color: var(--color-critical);  border: 1px solid rgba(239, 68, 68, 0.3); }
.badge-warning   { background: rgba(245, 158, 11, 0.15);   color: var(--color-warning);   border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-good      { background: rgba(34, 197, 94, 0.15);    color: var(--color-good);      border: 1px solid rgba(34, 197, 94, 0.3); }
.badge-excellent { background: rgba(6, 182, 212, 0.15);    color: var(--color-excellent); border: 1px solid rgba(6, 182, 212, 0.3); }

/* Tier chips */
.tier-chip {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  padding: 2px 8px;
  border-radius: 4px;
}

.tier-free    { background: rgba(255, 255, 255, 0.07); color: var(--color-subdued); }
.tier-starter { background: rgba(139, 92, 246, 0.12);  color: var(--color-accent); }
.tier-growth  { background: rgba(139, 92, 246, 0.2);   color: #b48bff; }
.tier-scale   { background: rgba(6, 182, 212, 0.12);   color: var(--color-cyan-bright); }

/* -------------------------------------------------------------
   GLASS CARDS
------------------------------------------------------------- */
.glass-card {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: transform var(--duration-mid) var(--ease-out),
              box-shadow var(--duration-mid),
              background var(--duration-mid);
}

.glass-card:hover {
  transform: translateY(-4px);
  background: var(--color-glass-hover);
  box-shadow: 0 12px 48px rgba(139, 92, 246, 0.12);
}

/* -------------------------------------------------------------
   GRADIENT TEXT
------------------------------------------------------------- */
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* -------------------------------------------------------------
   SECTION SHARED
------------------------------------------------------------- */
section {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-4xl);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-3xl);
}

.section-eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.section-h2 {
  font-size: clamp(2rem, 4vw, 2.875rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--color-subdued);
  line-height: 1.7;
}

/* Glow halos */
.section-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  filter: blur(100px);
  animation: glow-pulse 6s ease-in-out infinite;
}

.section-glow-violet {
  background: radial-gradient(circle, rgba(139, 92, 246, 0.18) 0%, transparent 70%);
  top: -200px;
  left: -150px;
  animation-delay: 0s;
}

.section-glow-cyan {
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  bottom: -200px;
  right: -150px;
  animation-delay: 1s;
}

/* Inline CTA row */
.section-inline-cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

/* -------------------------------------------------------------
   HERO SECTION
------------------------------------------------------------- */
.section-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(64px + var(--space-4xl));
  padding-bottom: var(--space-4xl);
  background: var(--grad-hero);
  position: relative;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  animation: glow-pulse 7s ease-in-out infinite;
}

.hero-glow-violet {
  background: radial-gradient(circle, rgba(139, 92, 246, 0.18) 0%, transparent 70%);
  top: -100px;
  left: -200px;
  animation-delay: 0s;
}

.hero-glow-cyan {
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  bottom: 0;
  right: -200px;
  animation-delay: 2s;
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-subdued);
  margin-bottom: var(--space-lg);
}

.hero-h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--color-subdued);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  list-style: none;
}

.hero-trust li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--color-subdued);
}

/* ---- Hero Demo Widget ---- */
.hero-demo {
  display: flex;
  justify-content: center;
}

.demo-card {
  background: rgba(17, 24, 39, 0.85);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  width: 100%;
  max-width: 440px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(139, 92, 246, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.demo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.demo-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-subdued);
}

.demo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-good);
  box-shadow: 0 0 6px var(--color-good);
  animation: demo-dot-pulse 2s ease-in-out infinite;
}

.demo-scores-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.demo-score-block {
  text-align: center;
}

.demo-score-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.score-critical  { color: var(--color-critical); }
.score-warning   { color: var(--color-warning); }
.score-good      { color: var(--color-good); }
.score-excellent { color: var(--color-excellent); }

.demo-score-label {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 4px;
}

.demo-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.demo-arrow-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-good);
}

/* Demo bars */
.demo-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.demo-bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 32px;
  align-items: center;
  gap: var(--space-sm);
}

.demo-bar-label {
  font-size: 0.8rem;
  color: var(--color-subdued);
  white-space: nowrap;
}

.demo-bar-track {
  height: 6px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 99px;
  overflow: hidden;
}

.demo-bar-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--grad-bar);
  width: 0;
  transition: width 1.2s var(--ease-bounce);
}

.demo-bar-val {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-excellent);
  text-align: right;
}

.demo-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-glass-border);
}

.demo-replay-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-subdued);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.demo-replay-btn:hover { color: var(--color-text); background: rgba(255,255,255,0.04); }
.demo-replay-btn:focus-visible { outline: 2px solid var(--color-accent); }

.demo-footnote {
  font-size: 0.72rem;
  color: var(--color-muted);
}

/* -------------------------------------------------------------
   STATS SECTION
------------------------------------------------------------- */
.section-stats {
  padding-block: var(--space-2xl);
  background: var(--color-surface-mid);
  border-top: 1px solid var(--color-glass-border);
  border-bottom: 1px solid var(--color-glass-border);
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.stat-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-glass-border);
  flex: 1 1 200px;
  max-width: 240px;
}

.stat-violet { background: rgba(139, 92, 246, 0.08); border-color: rgba(139, 92, 246, 0.2); }
.stat-cyan   { background: rgba(6, 182, 212, 0.08);  border-color: rgba(6, 182, 212, 0.2); }
.stat-green  { background: rgba(34, 197, 94, 0.08);  border-color: rgba(34, 197, 94, 0.2); }
.stat-amber  { background: rgba(245, 158, 11, 0.08); border-color: rgba(245, 158, 11, 0.2); }

.stat-number {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1;
}

.stat-number-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 1px;
}

.stat-prefix, .stat-lt {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  position: relative;
  top: -3px;
}

.stat-unit {
  font-size: 0.875rem;
  color: var(--color-subdued);
}

.stat-violet .stat-number { color: var(--color-accent); }
.stat-cyan   .stat-number { color: var(--color-cyan-bright); }
.stat-green  .stat-number { color: var(--color-good); }
.stat-amber  .stat-number { color: var(--color-warning); }

/* -------------------------------------------------------------
   PROBLEM SECTION
------------------------------------------------------------- */
.section-problem {
  background: var(--color-bg);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.card-body {
  font-size: 0.9375rem;
  color: var(--color-subdued);
  line-height: 1.65;
}

/* Problem animated stats row */
.problem-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  text-align: center;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  flex-wrap: wrap;
}

.problem-stat-number {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-critical  { color: var(--color-critical); }
.stat-warning   { color: var(--color-warning); }
.stat-excellent { color: var(--color-excellent); }

.problem-stat-desc {
  font-size: 0.9rem;
  color: var(--color-subdued);
  max-width: 200px;
}

/* -------------------------------------------------------------
   SCORE DEMO SECTION
------------------------------------------------------------- */
.section-score-demo {
  background: var(--color-surface-mid);
}

.score-demo-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-xl);
  align-items: stretch;
  margin-bottom: var(--space-3xl);
}

/* Fake product card */
.product-card-fake {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-card-fake-img {
  background: rgba(255, 255, 255, 0.03);
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-glass-border);
  overflow: hidden;
}

.product-fake-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.product-img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.4;
}

.product-card-fake-body {
  padding: var(--space-lg);
}

.product-card-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: var(--space-sm);
}

.tag-missing {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-critical);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.product-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.product-card-desc {
  font-size: 0.875rem;
  color: var(--color-subdued);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.product-card-missing {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.missing-field {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  background: rgba(239, 68, 68, 0.08);
  color: var(--color-critical);
  border-radius: 4px;
}

.product-card-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

/* Demo arrow */
.score-demo-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding-top: 80px;
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
}

/* Score breakdown panel */
.score-breakdown-panel {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.score-breakdown-header {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-glass-border);
}

.score-breakdown-main {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.score-big {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
}

.score-product-name {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: 4px;
}

/* Score bars */
.score-bars-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.score-bar-item {}

.score-bar-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.score-bar-name {
  font-size: 0.8125rem;
  color: var(--color-subdued);
}

.score-bar-val {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
}

.score-bar-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 99px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--bar-color, var(--grad-bar));
  width: 0;
  transition: width 1.4s var(--ease-bounce);
}

/* Insight banner */
.insight-banner {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-md) var(--space-lg);
  background: rgba(139, 92, 246, 0.07);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.875rem;
  color: var(--color-subdued);
  line-height: 1.6;
}

.insight-banner strong {
  color: var(--color-text);
}

.insight-banner svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* Sub-score explainer chips */
.subscore-chips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.subscore-chip {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
}

.subscore-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.subscore-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.subscore-desc {
  font-size: 0.8rem;
  color: var(--color-subdued);
}

/* Grade scale */
.grade-scale {
  text-align: center;
}

.grade-scale-track {
  display: flex;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 40px;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-md);
}

.grade-zone {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
}

.grade-f { background: linear-gradient(135deg, #991b1b, #b91c1c); }
.grade-d { background: linear-gradient(135deg, #b45309, #d97706); }
.grade-c { background: linear-gradient(135deg, #f59e0b, #fbbf24); color: rgba(0,0,0,0.7); }
.grade-b { background: linear-gradient(135deg, #15803d, #22c55e); }
.grade-a { background: linear-gradient(135deg, #0e7490, #06b6d4); }

.grade-labels {
  display: flex;
  justify-content: space-around;
  max-width: 700px;
  margin-inline: auto;
}

.grade-label {
  font-size: 0.775rem;
  text-align: center;
  line-height: 1.4;
}

.grade-label small { color: var(--color-muted); }
.grade-label-f  { color: var(--color-critical); }
.grade-label-w  { color: var(--color-warning); }
.grade-label-g  { color: var(--color-good); }
.grade-label-e  { color: var(--color-excellent); }

/* -------------------------------------------------------------
   HOW IT WORKS
------------------------------------------------------------- */
.section-how {
  background: var(--color-bg);
}

.steps-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 900px;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

.step-card {
  flex: 1;
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  position: relative;
  transition: transform var(--duration-mid) var(--ease-out),
              box-shadow var(--duration-mid);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 48px rgba(139, 92, 246, 0.1);
}

.step-connector {
  display: flex;
  align-items: center;
  padding: 0 8px;
  margin-top: 50px;
  flex-shrink: 0;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.step-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.step-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.step-body {
  font-size: 0.9375rem;
  color: var(--color-subdued);
  line-height: 1.65;
}

/* -------------------------------------------------------------
   FEATURES
------------------------------------------------------------- */
.section-features {
  background: var(--color-surface-mid);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  display: flex;
  flex-direction: column;
}

.feature-icon {
  font-size: 1.875rem;
  margin-bottom: var(--space-md);
}

.feature-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.feature-body {
  font-size: 0.9375rem;
  color: var(--color-subdued);
  line-height: 1.65;
  flex: 1;
  margin-bottom: var(--space-lg);
}

.feature-tiers {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-glass-border);
}

/* -------------------------------------------------------------
   SOCIAL PROOF
------------------------------------------------------------- */
.section-proof {
  background: var(--color-bg);
}

.proof-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
  text-align: center;
}

.proof-stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.proof-stat-desc {
  font-size: 0.9rem;
  color: var(--color-subdued);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.testimonial-card {
  position: relative;
  padding: var(--space-xl) var(--space-xl) var(--space-xl) calc(var(--space-xl) + 4px);
  border-left: 3px solid rgba(139, 92, 246, 0.4);
}

.testimonial-quote {
  font-size: 3rem;
  line-height: 1;
  color: rgba(139, 92, 246, 0.25);
  font-family: Georgia, serif;
  position: absolute;
  top: 12px;
  right: 20px;
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--color-subdued);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  font-style: normal;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--grad-cta);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* -------------------------------------------------------------
   PRICING
------------------------------------------------------------- */
.section-pricing {
  background: var(--color-surface-mid);
}

/* Billing toggle */
.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: 4px;
  width: fit-content;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

.toggle-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-subdued);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 20px;
  border-radius: var(--radius-lg);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.toggle-btn.active {
  background: var(--color-surface-raised);
  color: var(--color-text);
}

.toggle-btn:focus-visible { outline: 2px solid var(--color-accent); }

.toggle-save-badge {
  font-size: 0.7rem;
  font-weight: 700;
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-good);
  padding: 1px 6px;
  border-radius: 999px;
}

/* Pricing cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
  position: relative;
}

.pricing-card-featured {
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.15), 0 24px 64px rgba(139, 92, 246, 0.12);
  transform: scale(1.02);
}

.pricing-card-featured:hover {
  transform: scale(1.02) translateY(-4px);
}

.pricing-card-scale {
  background: rgba(17, 24, 39, 0.6);
}

.pricing-popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  background: var(--grad-cta);
  color: #fff;
  padding: 3px 14px;
  border-radius: 999px;
  white-space: nowrap;
}

.pricing-plan {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-subdued);
  margin-bottom: var(--space-md);
}

.pricing-price {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-subdued);
  align-self: flex-start;
  padding-top: 4px;
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  transition: opacity var(--duration-fast);
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--color-muted);
  padding-bottom: 8px;
}

.pricing-tagline {
  font-size: 0.875rem;
  color: var(--color-subdued);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-glass-border);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-subdued);
}

.pricing-feat-muted { color: var(--color-muted); }

.pricing-cta {
  width: 100%;
  justify-content: center;
  margin-top: auto;
}

.pricing-footnote {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--space-xl);
}

/* -------------------------------------------------------------
   FINAL CTA
------------------------------------------------------------- */
.section-final-cta {
  background: var(--color-bg);
  padding-block: var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.final-cta-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  animation: glow-pulse 6s ease-in-out infinite;
}

.final-cta-glow-violet {
  background: radial-gradient(circle, rgba(139, 92, 246, 0.22) 0%, transparent 70%);
  top: -100px;
  left: -100px;
}

.final-cta-glow-cyan {
  background: radial-gradient(circle, rgba(6, 182, 212, 0.14) 0%, transparent 70%);
  bottom: -100px;
  right: -100px;
  animation-delay: 2s;
}

.final-cta-inner {
  position: relative;
  z-index: 1;
}

.final-cta-content {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.final-cta-h2 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.final-cta-sub {
  font-size: 1.125rem;
  color: var(--color-subdued);
  line-height: 1.7;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

.final-cta-microcopy {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--space-md);
}

/* -------------------------------------------------------------
   FOOTER
------------------------------------------------------------- */
.site-footer {
  background: var(--color-surface-mid);
  border-top: 1px solid var(--color-glass-border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  padding-block: var(--space-2xl);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--space-sm);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color var(--duration-fast);
}

.footer-links a:hover { color: var(--color-text); }
.footer-links a:focus-visible { outline: 2px solid var(--color-accent); border-radius: 2px; }

.footer-social {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  color: var(--color-subdued);
  transition: color var(--duration-fast), background var(--duration-fast), transform var(--duration-fast);
}

.social-link:hover {
  color: var(--color-text);
  background: var(--color-glass-hover);
  transform: translateY(-2px);
}

.social-link:focus-visible { outline: 2px solid var(--color-accent); }

.shopify-partner-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-good);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  padding: 4px 10px;
  border-radius: 999px;
}

.footer-bottom {
  border-top: 1px solid var(--color-glass-border);
  padding-block: var(--space-lg);
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--color-muted);
  text-align: center;
}

/* -------------------------------------------------------------
   RESPONSIVE — TABLET (< 1024px)
------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-copy {
    order: 1;
    align-items: center;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 100%;
  }

  .hero-trust { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-sub { margin-inline: auto; }

  .hero-demo {
    order: 2;
  }

  .problem-grid { grid-template-columns: 1fr; }

  .score-demo-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .score-demo-arrow {
    padding-top: 0;
    flex-direction: row;
    justify-content: center;
  }

  .subscore-chips { grid-template-columns: repeat(2, 1fr); }

  .steps-flow { flex-direction: column; align-items: stretch; }
  .step-connector {
    justify-content: center;
    margin-top: 0;
    padding: var(--space-sm) 0;
  }
  .step-connector svg { transform: rotate(90deg); }

  .features-grid { grid-template-columns: 1fr; }

  .proof-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }

  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .pricing-card { scroll-snap-align: start; }
  .pricing-card-featured { transform: none; }
  .pricing-card-featured:hover { transform: translateY(-4px); }

  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { text-align: left; }
  .footer-social { justify-content: center; }
  .footer-links { justify-content: center; }
}

/* -------------------------------------------------------------
   RESPONSIVE — MOBILE (< 768px)
------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --space-4xl: 4rem;
  }

  .container { padding-inline: var(--space-lg); }

  /* Nav */
  .nav-hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 18, 32, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-glass-border);
    flex-direction: column;
    padding: var(--space-lg) var(--space-xl);
    gap: var(--space-md);
  }

  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; }
  .nav-cta { display: none; }

  /* Hero */
  .hero-h1 { font-size: 2.5rem; }
  .hero-sub { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; width: 100%; max-width: 100%; }
  .hero-actions .btn { justify-content: center; flex-wrap: wrap; }
  .btn-sub-sep { display: none; }
  .btn-sub-line { flex: 0 0 100%; display: block; font-size: 0.8125rem; font-weight: 500; opacity: 0.85; text-align: center; line-height: 1.4; }

  .demo-bar-row {
    grid-template-columns: 90px 1fr 32px;
  }
  .demo-bar-label { white-space: normal; line-height: 1.3; }

  /* Stats */
  .stats-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
  .stat-chip { max-width: 100%; padding: var(--space-sm) var(--space-md); justify-content: center; text-align: center; flex-direction: column; gap: 2px; }
  .stat-number { font-size: 1.5rem; }
  .stat-prefix, .stat-lt { font-size: 1rem; }

  /* Problem */
  .problem-stats { gap: var(--space-xl); }
  .problem-stat-number { font-size: 2.25rem; }

  /* Score demo */
  .subscore-chips { grid-template-columns: 1fr; }
  .grade-labels { font-size: 0.7rem; }

  /* Proof */
  .proof-stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { padding-block: var(--space-xl); }
}

/* -------------------------------------------------------------
   FOCUS STYLES (Accessibility)
------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 3px;
}