/* =================================================
   JARVIS LANDING — STARK STYLE
   Paleta: preto puro + branco + cinzas
   ================================================= */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-black: #000000;
  --bg-dark: #0a0a0a;
  --bg-card: #111111;
  --bg-card-hover: #161616;
  --text-white: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.65);
  --text-dim: rgba(255, 255, 255, 0.45);
  --text-faint: rgba(255, 255, 255, 0.28);
  --border-soft: rgba(255, 255, 255, 0.08);
  --border-med: rgba(255, 255, 255, 0.14);
  --border-bright: rgba(255, 255, 255, 0.28);
  --accent-glow: rgba(255, 255, 255, 0.06);

  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --max-container: 1200px;
}

html, body {
  background: var(--bg-black);
  color: var(--text-white);
  font-family: var(--font-display);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
}

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

/* =================================================
   HEADER
   ================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-soft);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-white);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 13px;
}
.brand-orb {
  width: 28px;
  height: 28px;
  color: var(--text-white);
  animation: orb-rotate 30s linear infinite;
}
@keyframes orb-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.btn-header {
  color: var(--text-white);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 9px 18px;
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  background: var(--accent-glow);
  transition: all 0.2s ease;
}
.btn-header:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--text-white);
}

/* =================================================
   HERO
   ================================================= */
.hero {
  padding: 64px 0 80px;
  text-align: center;
  position: relative;
}
.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--text-faint);
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}
.hero-title .accent {
  background: linear-gradient(180deg, #ffffff 0%, #aaaaaa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 48px;
  font-weight: 400;
}

/* =================================================
   VSL — destaque (sem pause, sem seek, só som)
   ================================================= */
.vsl-wrapper {
  max-width: 980px;
  margin: 0 auto 48px;
  padding: 0 16px;
}
.vsl-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: var(--bg-dark);
  border-radius: 18px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px var(--border-med),
    0 30px 60px -20px rgba(0, 0, 0, 0.8),
    0 0 120px -20px rgba(255, 255, 255, 0.04);
}
.vsl-video {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--bg-black);
  display: block;
  /* Bloqueia clique direito do user no vídeo (dificulta download direto) */
  pointer-events: none;
}
.vsl-sound-toggle {
  position: absolute;
  bottom: 16px;
  right: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  color: var(--text-white);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: all 0.2s ease;
}
.vsl-sound-toggle:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: var(--text-white);
}
.vsl-sound-toggle svg { width: 16px; height: 16px; }
.vsl-sound-toggle .icon-sound-on { display: none; }
.vsl-sound-toggle .icon-sound-off { display: block; }
.vsl-sound-toggle.sound-on .icon-sound-on { display: block; }
.vsl-sound-toggle.sound-on .icon-sound-off { display: none; }

/* Banner inicial de "clique pra ouvir" — desaparece após primeira interação */
.vsl-unmute-banner {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  color: var(--text-white);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  animation: banner-pulse 2s ease-in-out infinite;
  pointer-events: auto;
}
.vsl-unmute-banner svg { width: 22px; height: 22px; }
.vsl-unmute-banner.hidden { display: none; }
@keyframes banner-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.04); }
}

/* =================================================
   CTA Buttons
   ================================================= */
.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.btn-primary {
  display: inline-block;
  padding: 16px 36px;
  background: var(--text-white);
  color: var(--bg-black);
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 24px rgba(255, 255, 255, 0.18);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.28);
}
.btn-xl {
  padding: 20px 52px;
  font-size: 17px;
}
.hero-cta-sub {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* =================================================
   TRUST BAR
   ================================================= */
.trust-bar {
  padding: 32px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-dark);
}
.trust-items {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 24px;
}
.trust-item { text-align: center; }
.trust-number {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
}
.trust-number .accent {
  color: var(--text-muted);
  font-weight: 400;
}
.trust-label {
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 6px;
}
.trust-divider {
  width: 1px;
  height: 36px;
  background: var(--border-med);
}
@media (max-width: 768px) {
  .trust-divider { display: none; }
  .trust-items { gap: 32px; }
}

/* =================================================
   Section base
   ================================================= */
.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--text-faint);
  font-weight: 600;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.section-sub {
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 56px;
  max-width: 620px;
}

/* =================================================
   DEMO INTERATIVA
   ================================================= */
.demo-section {
  padding: 120px 0;
  text-align: center;
}
.demo-section .section-sub { margin-left: auto; margin-right: auto; }
.demo-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  margin-top: 48px;
  align-items: start;
  text-align: left;
}
@media (max-width: 900px) {
  .demo-wrapper { grid-template-columns: 1fr; gap: 32px; }
}

.demo-orb-container {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.demo-orb-stage {
  position: relative;
  width: 100%;
  max-width: 420px;
  /* Altura calculada via padding-top trick (mais robusto que aspect-ratio
     em alguns layouts com sticky parent) */
  padding-top: 100%;
  height: 0;
  display: block;
  overflow: hidden;
}
.demo-orb-stage canvas {
  position: absolute !important;
  top: 0; left: 0;
  width: 100% !important;
  height: 100% !important;
  display: block;
}
.demo-status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  min-height: 18px;
  transition: color 0.3s ease;
}
.demo-status.active { color: var(--text-white); }

.demo-commands-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.demo-commands-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 28px;
}
@media (max-width: 600px) {
  .demo-commands-grid { grid-template-columns: 1fr; }
}
.demo-cmd {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  color: var(--text-white);
  font-family: inherit;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
}
.demo-cmd:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  transform: translateY(-1px);
}
.demo-cmd.active {
  background: rgba(255, 255, 255, 0.10);
  border-color: var(--text-white);
}
.cmd-icon { font-size: 18px; flex-shrink: 0; }
.cmd-text { flex: 1; font-weight: 500; }

.demo-transcript {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background: var(--bg-dark);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  min-height: 110px;
}
.transcript-line {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.transcript-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  font-weight: 600;
  text-transform: uppercase;
}
.transcript-text {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-muted);
}
.transcript-jarvis .transcript-text { color: var(--text-white); font-weight: 500; }

/* =================================================
   FEATURES
   ================================================= */
.features-section {
  padding: 120px 0;
  text-align: center;
}
.features-section .section-sub { margin-left: auto; margin-right: auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
}
@media (max-width: 900px) { .features-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .features-grid { grid-template-columns: 1fr; } }

.feature-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  text-align: left;
  transition: all 0.25s ease;
}
.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  transform: translateY(-4px);
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  margin-bottom: 20px;
  color: var(--text-white);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =================================================
   INSTALL STEPS
   ================================================= */
.install-section {
  padding: 120px 0;
  text-align: center;
  background: var(--bg-dark);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.install-section .section-sub { margin-left: auto; margin-right: auto; }
.install-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 16px;
  text-align: left;
}
@media (max-width: 900px) { .install-steps { grid-template-columns: 1fr; gap: 16px; } }

.install-step {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  position: relative;
}
.install-step-number {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 600;
  color: var(--text-faint);
  letter-spacing: 0.04em;
  line-height: 1;
}
.install-step-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.install-step-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =================================================
   AVAILABILITY (OS cards)
   ================================================= */
.availability-section { padding: 120px 0; text-align: center; }
.os-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 760px;
  margin: 56px auto 0;
}
@media (max-width: 700px) { .os-grid { grid-template-columns: 1fr; } }
.os-card {
  padding: 40px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  text-align: center;
  transition: all 0.2s ease;
}
.os-card:hover { background: var(--bg-card-hover); border-color: var(--border-bright); }
.os-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  color: var(--text-white);
}
.os-icon svg { width: 100%; height: 100%; }
.os-title { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.os-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-white);
  font-weight: 600;
  margin-bottom: 10px;
}
.os-badge {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-med);
  border-radius: 4px;
  font-size: 10px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--text-muted);
}
.os-meta { font-size: 13px; color: var(--text-dim); }

/* =================================================
   TESTIMONIALS
   ================================================= */
.testimonials-section { padding: 120px 0; text-align: center; }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
  text-align: left;
}
@media (max-width: 900px) { .testimonials-grid { grid-template-columns: 1fr; } }

.testimonial-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: all 0.25s ease;
}
.testimonial-card:hover { background: var(--bg-card-hover); border-color: var(--border-bright); }
.testimonial-featured {
  background: linear-gradient(180deg, var(--bg-card-hover), var(--bg-card));
  border-color: var(--border-bright);
  transform: scale(1.02);
}
.testimonial-quote {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-white);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.01em;
}
.testimonial-quote::before { content: '"'; color: var(--text-faint); font-size: 32px; line-height: 0; margin-right: 4px; }
.testimonial-quote::after { content: '"'; color: var(--text-faint); font-size: 32px; line-height: 0; margin-left: 4px; }
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--border-soft);
}
.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-med);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-white);
}
.author-name { font-weight: 600; font-size: 14px; }
.author-role { font-size: 12px; color: var(--text-dim); }

.testimonials-cta {
  margin-top: 48px;
  text-align: center;
}
.testimonials-cta p {
  font-size: 16px;
  color: var(--text-muted);
}
.testimonials-cta strong { color: var(--text-white); font-weight: 700; }

/* =================================================
   GUARANTEE
   ================================================= */
.guarantee-section { padding: 80px 0; }
.guarantee-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 56px 48px;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-dark));
  border: 1px solid var(--border-bright);
  border-radius: 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 760px) {
  .guarantee-card { grid-template-columns: 1fr; text-align: center; padding: 40px 28px; gap: 24px; }
}
.guarantee-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid var(--border-bright);
  color: var(--text-white);
}
@media (max-width: 760px) { .guarantee-badge { margin: 0 auto; } }
.guarantee-badge svg { width: 38px; height: 38px; }
.guarantee-badge span {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.guarantee-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.guarantee-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}
.guarantee-desc strong { color: var(--text-white); font-weight: 700; }
.guarantee-fineprint { font-size: 13px; color: var(--text-dim); font-style: italic; }

/* =================================================
   CTA SECTION (compra principal)
   ================================================= */
.cta-section { padding: 80px 0 120px; }
.cta-card {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 24px;
  text-align: center;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.02),
    0 40px 80px -30px rgba(0, 0, 0, 0.6),
    0 0 120px -20px rgba(255, 255, 255, 0.05);
}
@media (max-width: 600px) { .cta-card { padding: 48px 28px; } }
.cta-eyebrow {
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--text-faint);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.cta-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 40px;
  line-height: 1.15;
}
.cta-price-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 36px;
}
.cta-price-installments-tag {
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--border-med);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  margin-bottom: 6px;
}
.cta-price-main {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 2px;
}
.cta-currency {
  font-size: 28px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.cta-price {
  font-size: clamp(82px, 12vw, 110px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff 0%, #cccccc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cta-cents {
  font-size: 0.45em; /* relativo ao .cta-price */
  font-weight: 700;
  letter-spacing: -0.02em;
  vertical-align: top;
  margin-left: 2px;
}
.cta-price-installment {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 8px;
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}
.cta-price-installment strong { color: var(--text-muted); font-weight: 600; }
.cta-price-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
  text-align: left;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}
.cta-pf-item {
  font-size: 14px;
  color: var(--text-muted);
}
.btn-cta { width: 100%; max-width: 380px; }
.cta-disclaimer {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 16px;
}

/* =================================================
   FAQ
   ================================================= */
.faq-section { padding: 120px 0; text-align: center; }
.faq-list {
  max-width: 780px;
  margin: 48px auto 0;
  text-align: left;
}
.faq-item {
  margin-bottom: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  overflow: hidden;
  transition: background 0.2s ease;
}
.faq-item:hover { background: var(--bg-card-hover); }
.faq-item[open] {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
}
.faq-question {
  padding: 22px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}
.faq-question::after {
  content: '+';
  font-size: 22px;
  color: var(--text-muted);
  font-weight: 400;
  transition: transform 0.2s ease;
}
.faq-item[open] .faq-question::after {
  content: '−';
  color: var(--text-white);
}
.faq-question::-webkit-details-marker { display: none; }
.faq-answer {
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* =================================================
   FINAL CTA
   ================================================= */
.final-cta {
  padding: 120px 0;
  text-align: center;
  background: var(--bg-dark);
  border-top: 1px solid var(--border-soft);
}
.final-cta-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 40px;
}
.final-cta-sub {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 18px;
}

/* =================================================
   FOOTER
   ================================================= */
.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--border-soft);
  background: var(--bg-black);
}
.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 20px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-white);
}
.footer-brand-text {
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 13px;
}
.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--text-white); }
.footer-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--text-dim);
}
.footer-tagline {
  font-style: italic;
  letter-spacing: 0.04em;
}

/* =================================================
   ANIMATIONS / Reveals
   ================================================= */
@media (prefers-reduced-motion: no-preference) {
  .feature-card,
  .install-step,
  .testimonial-card,
  .os-card,
  .faq-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .feature-card.visible,
  .install-step.visible,
  .testimonial-card.visible,
  .os-card.visible,
  .faq-item.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =================================================
   Responsive tweaks
   ================================================= */
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .hero { padding: 40px 0 60px; }
  .demo-section, .features-section, .install-section, .availability-section, .testimonials-section, .faq-section { padding: 80px 0; }
  .final-cta { padding: 80px 0; }
}