/* ============================================================
   NIMBUS — vitrine produit tech
   Design system : couleurs minérales, typo Space Grotesk,
   gradients dynamiques, animations CSS pures.
   ============================================================ */

* { box-sizing: border-box; }

:root {
  /* Tokens couleur */
  --bg-0: #06060a;
  --bg-1: #0a0a0e;
  --bg-2: #12121a;
  --bg-3: #1a1a26;
  --ink-0: #ededf2;
  --ink-1: #b8b8c4;
  --ink-2: #76768a;
  --ink-3: #4a4a5c;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);

  /* Accent (varie selon swatch) */
  --accent-1: #5a4ddc;
  --accent-2: #c9b8ff;
  --accent-glow: rgba(140, 126, 255, 0.55);

  /* Variables passées au SVG du casque */
  --cup-1: #5a4ddc;
  --cup-2: #2d2473;
  --cup-3: #0d0825;
  --rim-1: #8c7eff;
  --rim-2: #2a1f6b;
  --band-1: #d2c8ff;
  --band-2: #6f64c4;
  --band-3: #2c2569;
  --led-color: #c9b8ff;

  /* Types */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter Tight', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--ink-0);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

/* Utilitaires */
em { font-style: italic; font-family: 'Inter Tight', serif; font-weight: 400; }

/* ================ NAV ================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 36px;
  background: linear-gradient(180deg, rgba(6, 6, 10, 0.85) 0%, rgba(6, 6, 10, 0.5) 80%, rgba(6, 6, 10, 0) 100%);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}
.nav.is-stuck {
  border-bottom-color: var(--line);
  background: rgba(6, 6, 10, 0.92);
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.1em;
}
.nav-mark {
  display: inline-flex;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-1), #1a1233);
  border-radius: 9px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.nav-text { letter-spacing: 0.18em; }

.nav-links {
  display: flex;
  gap: 28px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink-1);
}
.nav-links a {
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--ink-0); }
.nav-links a:hover::after {
  content: '';
  position: absolute;
  inset: auto 0 -2px 0;
  height: 1px;
  background: var(--accent-1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-back {
  font-size: 13px;
  color: var(--ink-2);
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-back:hover {
  color: var(--ink-0);
  border-color: var(--line);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-1);
  color: white;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 6px 20px var(--accent-glow);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px var(--accent-glow);
}

/* ================ BUTTONS ================ */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-display);
  letter-spacing: 0.01em;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink-0);
  color: var(--bg-0);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.12);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(255, 255, 255, 0.16); }
.btn-ghost {
  background: transparent;
  color: var(--ink-0);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--ink-1);
}
.btn-block { display: flex; justify-content: center; width: 100%; }

/* ================ HERO ================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 80px 64px 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.7;
  animation: drift 20s ease-in-out infinite;
}
.hero-glow-1 {
  width: 540px; height: 540px;
  top: -120px; left: -180px;
  background: radial-gradient(circle, var(--accent-1), transparent 60%);
  animation-delay: 0s;
}
.hero-glow-2 {
  width: 420px; height: 420px;
  bottom: -80px; right: -80px;
  background: radial-gradient(circle, #2c4dff, transparent 60%);
  animation-delay: -7s;
}
.hero-glow-3 {
  width: 320px; height: 320px;
  top: 40%; left: 50%;
  background: radial-gradient(circle, #7148e3, transparent 60%);
  animation-delay: -14s;
}
@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-30px, 20px) scale(0.95); }
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 0%, transparent 80%);
  opacity: 0.4;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 580px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-1);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 28px;
}
.hero-eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 4px rgba(201, 184, 255, 0.18);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(56px, 9vw, 128px);
  font-weight: 600;
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin: 0 0 28px 0;
}
.hero-line { display: block; }
.hero-line-italic {
  font-style: italic;
  font-family: 'Inter Tight', serif;
  font-weight: 400;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-tagline {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-1);
  max-width: 520px;
  margin: 0 0 36px 0;
}

.hero-cta {
  display: flex;
  gap: 14px;
  margin-bottom: 56px;
}

.hero-stat-row {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-stat strong {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink-0);
}
.hero-stat span {
  font-size: 12px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-product {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 520px;
}
.hero-product-svg {
  width: 100%;
  max-width: 720px;
  filter: drop-shadow(0 30px 60px rgba(90, 77, 220, 0.4));
  animation: float 6s ease-in-out infinite;
  transform-origin: center;
}
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-18px) rotate(2deg); }
}
.hero-product-halo {
  position: absolute;
  inset: 8% 8%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  filter: blur(40px);
  animation: pulse-halo 4s ease-in-out infinite;
}
@keyframes pulse-halo {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.08); opacity: 0.9; }
}

.hero-scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  z-index: 2;
}
.hero-scroll-cue svg { animation: bob 2s ease-in-out infinite; }
@keyframes bob {
  0%, 100% { transform: translateY(0); opacity: 0.8; }
  50% { transform: translateY(4px); opacity: 1; }
}

/* ================ MARQUEE ================ */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-1);
  overflow: hidden;
  padding: 22px 0;
}
.marquee-track {
  display: flex;
  gap: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  white-space: nowrap;
  animation: scroll-x 36s linear infinite;
}
.marquee-track span { padding-right: 30px; }
@keyframes scroll-x {
  to { transform: translateX(-50%); }
}

/* ================ SECTIONS COMMUNES ================ */
.section-head {
  max-width: 760px;
  margin: 0 auto 64px;
  text-align: center;
}
.section-head-left {
  text-align: left;
  margin-left: 0;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 24px 0;
}
.section-lede {
  font-size: 18px;
  color: var(--ink-1);
  line-height: 1.55;
  max-width: 580px;
  margin: 0 auto;
}
.section-head-left .section-lede { margin-left: 0; }

/* ================ SHOWCASE (sticky) ================ */
.showcase {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 96px;
  align-items: start;
  padding: 160px 64px;
  position: relative;
  background: linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 50%, var(--bg-0) 100%);
}
.showcase-side {
  position: sticky;
  top: 120px;
  padding-right: 32px;
}
.showcase-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-2);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.showcase-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 28px 0;
}
.showcase-lede {
  font-size: 17px;
  color: var(--ink-1);
  line-height: 1.6;
  max-width: 480px;
}

.showcase-stage {
  position: relative;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.showcase-product {
  position: relative;
  width: 100%;
  max-width: 640px;
}
.showcase-svg {
  width: 100%;
  filter: drop-shadow(0 40px 80px rgba(90, 77, 220, 0.3));
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.showcase-callouts { position: absolute; inset: 0; pointer-events: none; }
.callout {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0;
  pointer-events: auto;
  opacity: 0;
  transform: translateX(-12px);
  animation: slide-in 0.6s ease-out forwards;
}
.callout-1 { top: 14%; left: -6%; animation-delay: 0.2s; }
.callout-2 { top: 50%; left: -10%; animation-delay: 0.4s; }
.callout-3 { top: 24%; right: -6%; flex-direction: row-reverse; animation-delay: 0.6s; }
.callout-4 { top: 60%; right: -8%; flex-direction: row-reverse; animation-delay: 0.8s; }
@keyframes slide-in {
  to { opacity: 1; transform: translateX(0); }
}
.callout-pulse {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 5px rgba(201, 184, 255, 0.22);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
.callout-line {
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-2), transparent);
  margin: 0 8px;
}
.callout-3 .callout-line, .callout-4 .callout-line {
  background: linear-gradient(-90deg, var(--accent-2), transparent);
}
.callout-card {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-0);
  background: rgba(20, 20, 30, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line-strong);
  padding: 8px 14px;
  border-radius: 8px;
  white-space: nowrap;
}

/* ================ FEATURES ================ */
.features {
  padding: 160px 64px;
  background: var(--bg-0);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1320px;
  margin: 0 auto;
}
.feature-card {
  position: relative;
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 32px;
  transition: transform 0.3s ease, border-color 0.3s ease;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, var(--accent-glow) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}
.feature-card:hover::before { opacity: 0.2; }

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-1), #1a1233);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: white;
  box-shadow: 0 8px 24px var(--accent-glow);
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 12px 0;
}
.feature-card p {
  font-size: 15px;
  color: var(--ink-1);
  line-height: 1.55;
  margin: 0 0 20px 0;
}
.feature-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--ink-1);
  background: rgba(255, 255, 255, 0.02);
}

/* ================ QUOTE ================ */
.quote-block {
  padding: 120px 64px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.quote-block blockquote {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 48px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 auto 24px;
  max-width: 880px;
  color: var(--ink-0);
}
.quote-block cite {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  font-style: normal;
}
.quote-block cite span { color: #f5b94a; margin-left: 4px; letter-spacing: 0.1em; }

/* ================ CONFIGURATOR ================ */
.configurator {
  padding: 160px 64px;
  background: var(--bg-0);
}
.config-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1320px;
  margin: 0 auto;
}
.config-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 540px;
  border-radius: 32px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  padding: 48px;
  overflow: hidden;
}
.config-stage::before {
  content: '';
  position: absolute;
  inset: 20% 20%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  filter: blur(60px);
  transition: background 0.6s ease;
  pointer-events: none;
}
.config-svg {
  position: relative;
  width: 100%;
  max-width: 460px;
  z-index: 2;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.4s ease;
}
.config-svg:hover { transform: scale(1.04) rotate(-2deg); }
.config-shadow {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 26px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  filter: blur(18px);
  z-index: 1;
}

.config-side .section-eyebrow,
.config-side .section-title,
.config-side .section-lede { text-align: left; }
.config-side .section-title { margin: 0 0 20px 0; font-size: clamp(36px, 4.6vw, 56px); }
.config-side .section-lede { margin: 0 0 36px 0; }

.swatch-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}
.swatch {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--bg-1);
  transition: all 0.2s ease;
  text-align: left;
}
.swatch:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.swatch.is-active {
  border-color: var(--ink-0);
  background: var(--bg-2);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.04);
}
.swatch-disk {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sw1), var(--sw2));
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.18), 0 4px 12px rgba(0, 0, 0, 0.4);
}
.swatch-label {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-0);
}
.swatch-hex {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

.config-summary {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 0;
  margin-bottom: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.config-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding: 6px 0;
}
.config-summary-row span { color: var(--ink-2); }
.config-summary-row strong {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--ink-0);
}

/* ================ SPECS ================ */
.specs {
  padding: 160px 64px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}
.spec-table {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  max-width: 1100px;
  margin: 0 auto;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
}
.spec-block {
  background: var(--bg-1);
  padding: 36px 32px;
}
.spec-block h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 24px 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.spec-block dl {
  margin: 0;
  display: grid;
  gap: 14px;
}
.spec-block dt {
  font-size: 13px;
  color: var(--ink-2);
  margin-bottom: 2px;
}
.spec-block dd {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-0);
  margin: 0 0 10px 0;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}
.spec-block dd:last-child { border-bottom: none; padding-bottom: 0; }

/* ================ PRICING ================ */
.pricing {
  padding: 160px 64px;
  background: var(--bg-0);
}
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1240px;
  margin: 0 auto 40px;
}
.price-card {
  position: relative;
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.price-card:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.price-card-featured {
  border-color: var(--accent-1);
  box-shadow: 0 24px 60px var(--accent-glow);
  background: linear-gradient(180deg, #1a1438 0%, #0c0820 100%);
}
.price-flag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-1);
  color: white;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.price-tag {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-1);
}
.price-amount {
  font-family: var(--font-display);
  font-size: 60px;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink-0);
  display: flex;
  align-items: flex-start;
  gap: 6px;
}
.price-currency {
  font-size: 24px;
  margin-top: 8px;
  color: var(--ink-1);
}
.price-tagline {
  color: var(--ink-1);
  font-size: 15px;
  line-height: 1.5;
  margin: 0;
  min-height: 50px;
}
.price-feats {
  list-style: none;
  margin: 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
}
.price-feats li {
  font-size: 14px;
  color: var(--ink-1);
  display: flex;
  align-items: center;
  gap: 10px;
}
.price-feats li::before {
  content: '✓';
  color: var(--accent-2);
  font-weight: 700;
  flex-shrink: 0;
}
.price-foot {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

/* ================ FAQ ================ */
.faq {
  padding: 160px 64px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}
.faq-list {
  max-width: 880px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--ink-0);
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 26px 40px 26px 0;
  position: relative;
  transition: color 0.2s ease;
  cursor: pointer;
}
.faq-q::after {
  content: '+';
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  color: var(--accent-2);
  transition: transform 0.3s ease;
}
.faq-q:hover { color: var(--accent-2); }
.faq-item.is-open .faq-q::after {
  transform: translateY(-50%) rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-1);
  transition: max-height 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), padding 0.3s ease;
}
.faq-a a { color: var(--accent-2); border-bottom: 1px solid var(--accent-2); padding-bottom: 1px; }
.faq-item.is-open .faq-a {
  max-height: 280px;
  padding: 0 0 26px 0;
}

/* ================ FOOTER ================ */
.footer {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}
.footer-band {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 64px;
  padding: 96px 64px;
  max-width: 1320px;
  margin: 0 auto;
}
.footer-newsletter h3 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 12px 0;
}
.footer-newsletter p {
  font-size: 15px;
  color: var(--ink-1);
  line-height: 1.55;
  margin: 0 0 24px 0;
  max-width: 380px;
}
.newsletter-form {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px;
  max-width: 420px;
}
.newsletter-form:focus-within { border-color: var(--accent-2); }
.newsletter-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink-0);
  font-size: 14px;
  padding: 10px 18px;
  font-family: inherit;
}
.newsletter-form input::placeholder { color: var(--ink-2); }
.newsletter-form button {
  background: var(--ink-0);
  color: var(--bg-0);
  border: none;
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 14px;
  font-family: var(--font-display);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.2s ease;
}
.newsletter-form button:hover { transform: translateX(2px); }
.newsletter-form button:disabled { opacity: 0.6; cursor: default; }

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer-cols h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0 0 16px 0;
}
.footer-cols a {
  display: block;
  font-size: 14px;
  color: var(--ink-1);
  padding: 6px 0;
  transition: color 0.18s ease;
}
.footer-cols a:hover { color: var(--ink-0); }

.footer-base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 64px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.footer-back { color: var(--ink-1); transition: color 0.2s; }
.footer-back:hover { color: var(--accent-2); }

/* ================ RESPONSIVE ================ */
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; padding: 60px 32px 100px; }
  .hero-product { min-height: 360px; margin-top: 40px; }
  .hero-stat-row { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .showcase, .features, .configurator, .specs, .pricing, .faq { padding-left: 32px; padding-right: 32px; }
  .showcase { grid-template-columns: 1fr; gap: 40px; }
  .showcase-side { position: static; padding-right: 0; }
  .showcase-stage { min-height: 480px; }
  .feature-grid, .price-grid, .footer-cols { grid-template-columns: 1fr 1fr; }
  .config-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-band { grid-template-columns: 1fr; }
  .footer-base { flex-direction: column; gap: 12px; padding: 20px 32px; text-align: center; }
}
@media (max-width: 720px) {
  .nav { padding: 14px 20px; }
  .nav-links { display: none; }
  .hero { padding: 40px 20px 80px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .feature-grid, .price-grid, .footer-cols, .swatch-row, .spec-table { grid-template-columns: 1fr; }
  .showcase, .features, .configurator, .specs, .pricing, .faq { padding-left: 20px; padding-right: 20px; padding-top: 100px; padding-bottom: 100px; }
  .callout-card { font-size: 11px; padding: 6px 10px; }
}