*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  /* Effective page width — viewport-based but capped on ultrawide screens.
     Replaces raw `vw` so layout and annotations scale together. */
  --pw: min(100vw, 1920px);
}
html, body { overflow-x: clip; }
html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}
body {
  font-family: 'Inter', sans-serif;
  background: #ffffff;
  color: #000000;
  -webkit-font-smoothing: antialiased;
  max-width: 1920px;
  margin-left: auto;
  margin-right: auto;
}

/* Center all sections with a consistent max width */
section {
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  scroll-snap-align: start;
  scroll-margin-top: 20px;
}

/* Vertical spacing between consecutive sections */
section + section {
  margin-top: 160px;
}

/* LOGO SECTION */
.section-logo {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 80px 70px; gap: 32px;
  min-height: 100vh;
}
.logo-block {
  width: 100%;
  max-width: 700px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.logo-img-wrap { width: 100%; display: flex; justify-content: center; }
.logo-img {
  width: 100%;
  height: auto;
  display: block;
}
.logo-tagline {
  font-family: 'JetBrains Mono', monospace; font-weight: 400;
  font-size: 28px; color: #000; letter-spacing: -0.5px;
  text-align: right; width: 100%;
  padding-right: 36%;
}

/* HERO */
.section-hero {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 140px 64px 400px; gap: 80px;
}
.hero-headline {
  display: flex; gap: 48px; align-items: center;
  justify-content: center; width: 100%; flex-wrap: wrap;
}
.hero-title {
  font-family: 'Inter', sans-serif; font-weight: 600;
  font-size: clamp(42px, 5vw, 58px); line-height: 1.2;
  letter-spacing: -1.6px; color: #000; text-align: right;
}
.hero-title em { font-style: italic; font-weight: 300; }
.hero-subtitle {
  font-family: 'Inter', sans-serif; font-style: italic; font-weight: 400;
  font-size: clamp(20px, 2.2vw, 28px); line-height: 1.42;
  color: #000; letter-spacing: -0.4px; max-width: 480px;
}
.hero-metrics {
  display: grid; grid-template-columns: auto auto;
  column-gap: 17px; row-gap: 10px;
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size: clamp(32px, 3.5vw, 48px); line-height: 1.32;
  letter-spacing: -0.96px; color: #000;
}
.hero-buttons { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; justify-content: center; }
.btn-primary {
  background: #000; color: #fff; border: none;
  padding: 12px 16px; font-family: 'Inter', sans-serif;
  font-weight: 700; font-size: 20px; letter-spacing: -0.4px;
  cursor: pointer; text-decoration: none; display: inline-block; transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.8; }
.btn-secondary {
  background: transparent; color: #000; border: 1px dashed #000;
  padding: 12px 16px; font-family: 'Inter', sans-serif;
  font-weight: 700; font-size: 20px; letter-spacing: -0.4px;
  cursor: pointer; text-decoration: none; display: inline-block; transition: opacity 0.15s;
}
.btn-secondary:hover { opacity: 0.6; }

/* FAIL */
.section-fail {
  display: flex;
  flex-direction: column;
  padding: 80px 64px 40px;
  background: #ffffff;
  align-items: flex-start;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}
.fail-quote {
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size: clamp(28px, 4vw, 56px); line-height: 1.2;
  letter-spacing: -1.5px;
  text-align: right;
  width: 100%;
  margin-bottom: 60px;
}
.fail-body {
  font-family: 'Inter', sans-serif; font-weight: 400;
  font-size: clamp(16px, 2.2vw, 32px); line-height: 1.3;
  letter-spacing: -0.5px;
  text-align: left;
  width: 100%;
  max-width: 700px;
}
.fail-visual {
  width: var(--pw);
  margin-left: calc(50% - var(--pw) / 2);
  position: relative;
  margin-top: 40px;
  height: calc(var(--pw) * 0.46);
  min-height: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.fail-img-wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fail-img {
  width: var(--pw);
  height: auto;
  display: block;
}
.fail-callout {
  position: absolute;
  left: calc(var(--pw) * 0.66);
  top: calc(var(--pw) * 0.29);
  display: flex;
  align-items: center;
  z-index: 10;
}
.fail-svg-line {
  position: absolute;
  right: 100%;
  bottom: 50%;
  width: calc(var(--pw) * 0.07);
  height: calc(var(--pw) * 0.05);
  min-width: 60px;
  min-height: 50px;
  overflow: visible;
  margin-bottom: 0;
}
.fail-svg-line path {
  fill: none;
  stroke: #000;
  stroke-width: 1.2px;
}
.fail-callout-text {
  font-family: 'JetBrains Mono', monospace;
  font-style: italic; font-weight: 500;
  font-size: clamp(11px, 1vw, 14px);
  line-height: 1.4; letter-spacing: -0.3px; color: #000;
  border-left: 1.2px solid #000;
  padding-left: 12px;
  margin: 0;
}

/* SOLUTION */
.section-solution {
  display: flex; flex-direction: column; align-items: flex-start;
  padding: 80px 64px 0; gap: 0;
}
.solution-title {
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size:  clamp(28px, 4vw, 56px); line-height: 1.05;
  letter-spacing: -2px; color: #000;
  margin-bottom: 48px;
}
.solution-tagline {
  display: flex; gap: 24px; align-items: center;
  justify-content: center;
  width: 100%; flex-wrap: wrap;
  margin-bottom: 60px;
}
.solution-left {
  font-family: 'Inter', sans-serif; font-weight: 400;
  font-size: clamp(13px, 1.4vw, 22px); line-height: 1.45;
  letter-spacing: -0.2px; text-align: right;
  color: #000;
}
.solution-right {
  font-family: 'Inter', sans-serif; font-weight: 500;
  font-size: clamp(18px, 2.2vw, 36px); line-height: 1.2;
  letter-spacing: -0.5px;
  color: #000;
}
.solution-right .mono-italic {
  font-style: italic;
  font-weight: 500;
}

/* Blueprint section */
.bp-wrapper {
  width: var(--pw);
  margin-left: calc(50% - var(--pw) / 2);
  padding: 0;
}
.bp-labels-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding: 0 40px;
  margin-bottom: 0;
}
.bp-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}
.bp-col-desc {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 400;
  font-size: clamp(10px, 0.85vw, 24px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: #000;
  margin-bottom: 8px;
}
.bp-col-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(12px, 1.2vw, 20px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: #000;
  margin-bottom: 0;
  position: relative;
}
.bp-col-name strong {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.bp-col-name span {
  font-weight: 200;
}
.bp-line-svg {
  position: absolute;
  top: 100%;
  right: 80%;
  width: 60px;
  height: 60px;
  margin-top: 4px;
  overflow: visible;
}
.bp-line-svg path {
  fill: none;
  stroke: #000;
  stroke-width: 1.2px;
}
.bp-image-row {
  width: 100%;
  margin-top: 80px;
}
.bp-image-row img {
  width: 100%;
  height: auto;
  display: block;
}

/* === UNIFIED ANNOTATION SYSTEM === */
.ann-block {
  position: absolute;
  display: flex;
  flex-direction: column;
  z-index: 10;
}
.ann-left {
  align-items: flex-end;
}
.ann-right {
  align-items: flex-start;
}
.ann-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
}
.ann-left .ann-content {
  text-align: right;
  padding-right: 12px;
  border-right: 1px solid #000;
}
.ann-right .ann-content {
  text-align: left;
  padding-left: 12px;
  border-left: 1px solid #000;
}
.ann-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: clamp(14px, 1.4vw, 18px);
  letter-spacing: -0.2px;
  color: #000;
  margin-bottom: 2px;
}
.ann-body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: clamp(12px, 1.1vw, 14px);
  line-height: 1.45;
  letter-spacing: 0;
  color: #000;
}
.ann-svg {
  position: absolute;
  overflow: visible;
}
.ann-svg path {
  fill: none;
  stroke: #000;
  stroke-width: 1px;
}

/* Drone Positions (relative to 1100px max-width container) */
/* All 4 lines exit from the TOP of the vertical bar (at title level) */
.drone-ann-1 { left: -4%; top: 22%; width: 28%; }
.drone-ann-1 .ann-svg { top: 40%; left: 100%; margin-left: -0.5px; width: 140px; height: 80px; }

.drone-ann-2 { left: 0; bottom: 18%; width: 28%; }
.drone-ann-2 .ann-svg { bottom: 60%; left: 100%; margin-left: -0.5px; margin-bottom: -1px; width: 140px; height: 120px; }

.drone-ann-3 { right: -1%; top: 22%; width: 28%; }
.drone-ann-3 .ann-svg { top: 40%; right: 100%; margin-right: -0.5px; width: 140px; height: 80px; }

.drone-ann-4 { right: -4%; bottom: 8%; width: 28%; }
.drone-ann-4 .ann-svg { bottom: 60%; right: 100%; margin-right: -0.5px; margin-bottom: -1px; width: 140px; height: 120px; }

/* Thread Positions (pure vw scaling) */
.thread-ann-1 { left: calc(var(--pw) * 0.30); top: calc(var(--pw) * 0.03); width: calc(var(--pw) * 0.22); }
.thread-ann-1 .ann-svg { top: 60%; left: 100%; margin-left: -1px; margin-top: -1px; width: calc(var(--pw) * 0.10); height: calc(var(--pw) * 0.12); }

.thread-ann-2 { left: calc(var(--pw) * 0.12); bottom: calc(var(--pw) * 0.03); width: calc(var(--pw) * 0.20); }
.thread-ann-2 .ann-svg { bottom: 60%; left: 100%; margin-left: -1px; margin-bottom: -1px; width: calc(var(--pw) * 0.10); height: calc(var(--pw) * 0.12); }

.thread-ann-3 { right: calc(var(--pw) * 0.12); bottom: calc(var(--pw) * 0.03); width: calc(var(--pw) * 0.22); }
.thread-ann-3 .ann-svg { bottom: 60%; right: 100%; margin-right: -1px; margin-bottom: -1px; width: calc(var(--pw) * 0.10); height: calc(var(--pw) * 0.12); }

/* Use cases visual */
.section-usecases { display: flex; flex-direction: column; padding: 80px 64px 40px; gap: 40px; align-items: flex-start; }
.usecases-heading { text-align: left; width: 100%; }
.uc-light { font-family: 'Inter', sans-serif; font-weight: 400; font-size: clamp(32px, 4vw, 56px); line-height: 1.1; letter-spacing: -1.5px; display: block; color: #000; }
.uc-bold  { font-family: 'Inter', sans-serif; font-weight: 700; font-size: clamp(32px, 4vw, 56px); line-height: 1.1; letter-spacing: -1.5px; display: block; color: #000; }
.usecases-visual { position: relative; width: 100%; max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: center; padding: 40px 0; }
.uc-img-box { width: 40%; border: 1px solid rgba(0,0,0,0.8); flex-shrink: 0; z-index: 0; background: #fff; padding: 0; }
.uc-img-box img { width: 100%; height: auto; display: block; }

/* Digital thread */
.section-thread { display: flex; flex-direction: column; padding: 80px 64px; gap: 40px; }
.thread-heading { text-align: left; width: 100%; }
.thread-bold { font-family: 'Inter', sans-serif; font-weight: 700; font-size:  clamp(28px, 4vw, 56px); line-height: 1.1; letter-spacing: -1.5px; color: #000; margin-bottom: 8px; display: block; }
.thread-regular { font-family: 'Inter', sans-serif; font-weight: 400; font-size: clamp(18px, 2vw, 30px); line-height: 1.3; letter-spacing: -0.5px; color: #000; display: block; }
.thread-visual { width: var(--pw); margin-left: calc(50% - var(--pw) / 2); position: relative; height: calc(var(--pw) * 0.35); display: flex; align-items: center; justify-content: center; }
.thread-bg { width: 100%; height: auto; display: block; object-fit: cover; }

/* FEATURES */
.section-features {
  display: flex; flex-direction: column; align-items: flex-end;
  padding: 80px 64px; gap: 24px;
}
.features-title {
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size:  clamp(28px, 4vw, 56px); line-height: 1.2;
  letter-spacing: -1.92px; text-align: right; width: 100%;
}
.features-subtitle {
  font-family: 'Inter', sans-serif; font-weight: 600;
  font-size: clamp(24px, 3vw, 40px); line-height: 1.2;
  letter-spacing: -1.32px; width: 100%; margin-bottom: 16px;
}
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  column-gap: 52px; row-gap: 40px; width: 100%;
}
.feature-name {
  font-family: 'JetBrains Mono', monospace; font-weight: 700;
  font-size: clamp(14px, 2vw, 40px); letter-spacing: -0.4px;
  line-height: 1.36; margin-bottom: 4px;
}
.feature-desc {
  font-family: 'Inter', sans-serif; font-weight: 400;
  font-size: clamp(15px, 1.5vw, 28px); line-height: 1.36;
  letter-spacing: -0.3px;
}

/* BENEFIT */
.section-benefit {
  display: flex; flex-direction: column; padding: 80px 64px; gap: 60px;
}
.benefit-left { text-align: left; }
.benefit-right { text-align: right; }
.benefit-label {
  font-family: 'Inter', sans-serif; font-weight: 600;
  font-size: clamp(18px, 1.8vw, 36px); line-height: 1.36;
  letter-spacing: -0.36px; margin-bottom: 4px;
}
.benefit-body {
  font-family: 'Inter', sans-serif; font-weight: 400;
  font-size: clamp(16px, 2.5vw, 48px); line-height: 1.36;
  letter-spacing: -0.48px;
}

/* CTA — hero image with title overlay, form below on matching bg */
.section-cta {
  position: relative;
  background: #f2f2f2;
  width: var(--pw);
  max-width: none;
  margin-left: calc(50% - var(--pw) / 2);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 0 80px;
}
.cta-hero {
  position: relative;
  width: 100%;
  margin-bottom: 40px;
}
.cta-title {
  position: absolute;
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size: clamp(28px, 3vw, 48px); line-height: 1.32;
  letter-spacing: -0.96px; color: #000;
  margin: 0;
  text-align: center;
  z-index: 2;
}
.cta-bg-img {
  width: 100%;
  height: auto;
  display: block;
}

/* CONTACT FORM (inside CTA) */
.form-right {
  display: flex; flex-direction: column; gap: 20px;
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
  padding: 0 24px;
}
.section-cta .form-group input,
.section-cta .form-group select,
.section-cta .form-group textarea {
  background: #f2f2f2;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 500; color: #000; }
.form-group input, .form-group select, .form-group textarea {
  font-family: 'Inter', sans-serif; font-size: 15px; color: #000;
  border: 1px solid rgba(0,0,0,0.15); border-radius: 2px;
  padding: 10px 12px; background: #fff; outline: none;
  transition: border-color 0.15s; width: 100%;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: #000; }
.form-group textarea { min-height: 140px; resize: vertical; }
#form-status {
  display: none;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  text-align: center;
  padding: 10px 12px;
  margin: 0;
  border: 1px solid rgba(0,0,0,0.15);
  background: #fff;
}
#form-status.is-visible { display: block; }
#form-status.is-success { border-color: #000; color: #000; }
#form-status.is-error { border-color: #c00; color: #c00; }
.form-submit {
  background: #000; color: #fff; border: none;
  padding: 14px 24px; font-family: 'Inter', sans-serif;
  font-weight: 700; font-size: 16px; letter-spacing: -0.3px;
  cursor: pointer; transition: opacity 0.15s; margin-top: 4px;
}
.form-submit:hover { opacity: 0.8; }

/* STICKY BUTTON */
.sticky-cta {
  position: fixed; top: 20px;
  right: calc(24px + max(0px, (100vw - 1920px) / 2));
  z-index: 999;
  background: #000; color: #fff;
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size: 15px; letter-spacing: -0.3px;
  padding: 11px 20px; text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}
.sticky-cta:hover { opacity: 0.8; }
.sticky-cta.is-hidden {
  opacity: 0;
  transform: translateY(12px);
  visibility: hidden;
  pointer-events: none;
}

/* FOOTER */
footer {
  display: flex;
  flex-direction: column;
  border-top: 1px solid rgba(0,0,0,0.08);
  background: #fff;
}
.footer-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px 64px;
}
.footer-logo-wrap { display: flex; align-items: center; }
.footer-logo-img {
  width: 200px;
  height: auto;
  display: block;
}
.footer-right { display: flex; align-items: center; }
.footer-social { display: flex; gap: 20px; align-items: center; }
.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #000;
  transition: opacity 0.15s;
}
.footer-social-link:hover { opacity: 0.6; }
.footer-social-link svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  display: block;
}
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 64px;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.footer-copyright {
  font-size: 13px; color: rgba(0,0,0,0.45);
  font-family: 'Inter', sans-serif;
}
.footer-email {
  font-size: 13px; color: rgba(0,0,0,0.55);
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  transition: color 0.15s;
}
.footer-email:hover { color: #000; }

/* Blueprint images */
.blueprint-img-wrap { width: 100%; display: flex; }
.blueprint-img-main { width: 72%; height: auto; display: block; }
.blueprint-img-side { width: 28%; height: auto; display: block; object-fit: cover; }

/* =========================================
   RESPONSIVE
   Breakpoints:
     1200px — large tablets / small desktops
      900px — tablets / portrait
      600px — phones
   ========================================= */

/* ---- Large tablet / small desktop ---- */
@media (max-width: 1200px) {
  section + section { margin-top: 120px; }

  .section-logo { padding: 64px 48px; }
  .section-hero { padding: 100px 48px 200px; gap: 56px; }
  .section-fail,
  .section-solution,
  .section-features,
  .section-usecases,
  .section-thread,
  .section-benefit { padding: 64px 48px; }

  .footer-top,
  .footer-bottom { padding-left: 48px; padding-right: 48px; }

  /* Shrink drone annotation widths slightly */
  .drone-ann-1,
  .drone-ann-2,
  .drone-ann-3,
  .drone-ann-4 { width: 26%; }
  .drone-ann-1 .ann-svg,
  .drone-ann-2 .ann-svg,
  .drone-ann-3 .ann-svg,
  .drone-ann-4 .ann-svg { width: 110px; }
}

/* ---- Tablet ---- */
@media (max-width: 900px) {
  section + section { margin-top: 80px; }

  /* Section paddings */
  .section-logo {
    padding: 48px 24px;
    min-height: 100vh;
    justify-content: center;
  }
  .logo-block { gap: 24px; }
  .section-hero {
    padding: 64px 24px;
    gap: 40px;
    min-height: 100vh;
    justify-content: center;
  }
  .section-fail,
  .section-solution,
  .section-features,
  .section-usecases,
  .section-thread,
  .section-benefit { padding: 48px 24px; }

  /* Typography scaling */
  .logo-tagline { font-size: 20px; }
  .hero-headline { flex-direction: column; gap: 24px; }
  .hero-title,
  .hero-subtitle { text-align: center; max-width: 100%; }
  .hero-metrics {
    grid-template-columns: auto 1fr;
    column-gap: 12px;
    font-size: clamp(24px, 6vw, 36px);
  }

  /* FAIL section — keep rotated image but stack callout below */
  .fail-quote { text-align: left; }
  .fail-visual {
    overflow: visible;
    margin-bottom: 100px;
    height: 42vw;
    min-height: 220px;
  }
  .fail-img { width: 100vw; height: auto; }
  .fail-callout {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 600px;
    justify-content: center;
    margin-top: 24px;
  }
  .fail-callout-text {
    border-left: none;
    text-align: center;
    padding-left: 0;
  }
  .fail-svg-line { display: none; }

  /* SOLUTION / BLUEPRINT section */
  .solution-tagline { flex-direction: column; align-items: flex-start; gap: 16px; }
  .solution-left { text-align: left; }
  .bp-wrapper { padding: 0 16px; }
  .bp-labels-row {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 24px;
    margin-bottom: 24px;
  }
  .bp-col { align-items: flex-start; text-align: left; }
  .bp-col-desc br { display: none; }
  .bp-line-svg { display: none; }

  /* FEATURES — 2 columns on tablet */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 24px;
    row-gap: 32px;
  }

  /* USE CASES — stack annotations below drone image */
  .section-usecases { align-items: stretch; }
  .usecases-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-areas:
      "img img"
      "a1 a3"
      "a2 a4";
    gap: 24px 20px;
    padding: 24px 0;
  }
  .uc-img-box {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    grid-area: img;
  }
  .drone-ann-1,
  .drone-ann-2,
  .drone-ann-3,
  .drone-ann-4 {
    position: static;
    width: 100%;
    margin: 0;
  }
  .drone-ann-1 { grid-area: a1; }
  .drone-ann-2 { grid-area: a2; }
  .drone-ann-3 { grid-area: a3; }
  .drone-ann-4 { grid-area: a4; }
  .ann-block.drone-ann-1,
  .ann-block.drone-ann-2,
  .ann-block.drone-ann-3,
  .ann-block.drone-ann-4 { align-items: flex-start; }
  .drone-ann-1 .ann-content,
  .drone-ann-2 .ann-content,
  .drone-ann-3 .ann-content,
  .drone-ann-4 .ann-content {
    text-align: left;
    padding-left: 12px;
    padding-right: 0;
    border-right: none;
    border-left: 1px solid #000;
  }
  .drone-ann-1 .ann-svg,
  .drone-ann-2 .ann-svg,
  .drone-ann-3 .ann-svg,
  .drone-ann-4 .ann-svg { display: none; }

  /* DIGITAL THREAD — stack annotations below the rope image */
  .section-thread { gap: 32px; }
  .thread-visual {
    width: 100%;
    margin-left: 0;
    height: auto;
    flex-direction: column;
    gap: 24px;
  }
  /* Image breaks out of the section padding to go edge-to-edge */
  .thread-bg {
    width: 100vw;
    margin-left: -24px;
    margin-right: -24px;
    height: auto;
  }
  .thread-ann-1,
  .thread-ann-2,
  .thread-ann-3 {
    position: static;
    width: 100%;
    margin: 0;
  }
  .thread-ann-1 .ann-content,
  .thread-ann-2 .ann-content,
  .thread-ann-3 .ann-content {
    text-align: left;
    padding-left: 12px;
    padding-right: 0;
    border-right: none;
    border-left: 1px solid #000;
  }
  .thread-ann-1 .ann-svg,
  .thread-ann-2 .ann-svg,
  .thread-ann-3 .ann-svg { display: none; }

  /* BENEFIT */
  .benefit-body br { display: none; }

  /* CTA + FORM */
  .cta-title { top: 6%; font-size: clamp(22px, 4.5vw, 34px); }
  .form-right { padding: 0 24px; }

  /* Sticky CTA — compact rectangle at bottom-right on mobile */
  .sticky-cta {
    top: auto;
    bottom: 16px;
    right: calc(16px + max(0px, (100vw - 1920px) / 2));
    left: auto;
    padding: 11px 18px;
    font-size: 14px;
  }

  /* FOOTER */
  .footer-top {
    flex-direction: column;
    gap: 20px;
    padding: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    padding: 16px 24px;
    text-align: center;
  }
  .footer-logo-img { width: 160px; }
}

/* ---- Phone ---- */
@media (max-width: 600px) {
  section + section { margin-top: 56px; }

  .section-logo {
    padding: 40px 20px;
    min-height: 100vh;
    justify-content: center;
  }
  .logo-block { gap: 20px; }
  .section-hero {
    padding: 56px 20px;
    gap: 32px;
    min-height: 100vh;
    justify-content: center;
  }
  .section-fail,
  .section-solution,
  .section-features,
  .section-usecases,
  .section-thread,
  .section-benefit { padding: 40px 20px; }

  .logo-tagline { font-size: 16px; }

  /* FEATURES — 1 column on phone */
  .features-grid { grid-template-columns: 1fr; row-gap: 24px; }

  /* FAIL section */
  .fail-visual { height: 46vw; min-height: 200px; margin-bottom: 160px; }
  .fail-img { width: 100vw; height: auto; }

  /* Thread image breakout — adjust for 20px phone padding */
  .thread-bg { margin-left: -20px; margin-right: -20px; }

  /* USE CASES — single column annotations on phone */
  .usecases-visual {
    grid-template-columns: 1fr;
    grid-template-areas:
      "img"
      "a1"
      "a2"
      "a3"
      "a4";
  }

  /* FORM */
  .form-row { grid-template-columns: 1fr; }
  .form-right { padding: 0 20px; }

  /* CTA title — smaller and doesn't overlap image subject */
  .cta-title { font-size: clamp(20px, 5vw, 28px); top: 4%; }

  /* Sticky CTA stays a compact pill (inherits from tablet rule) */
  .sticky-cta { bottom: 12px; right: calc(12px + max(0px, (100vw - 1920px) / 2)); padding: 10px 16px; font-size: 13px; }

  /* FOOTER */
  .footer-social { gap: 16px; }
  .footer-social-link svg { width: 20px; height: 20px; }
}