/* ================================================================
   SETU PRODUCT PAGE — Aerodramus Private Limited
   Theme preserved from the existing Aerodramus / SETU webpage.
   Main palette: navy #0f172a, cyan #0ea5e9, light #f8fafc.
   ================================================================ */

:root {
  --navy: #0f172a;
  --navy-2: #12395a;
  --blue: #0ea5e9;
  --blue-dark: #0284c7;
  --blue-soft: #eaf7ff;
  --text: #1f2933;
  --muted: #64748b;
  --muted-2: #475569;
  --line: #e2e8f0;
  --line-dark: #cbd5e1;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-2: #f1f5f9;
  --success: #0f9a82;
  --shadow-sm: 0 8px 25px rgba(15, 23, 42, 0.07);
  --shadow-md: 0 14px 34px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 24px 55px rgba(15, 23, 42, 0.22);
  --radius: 18px;
  --radius-lg: 24px;
  --page-pad: 8%;
  --max: 1440px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--surface);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img,
video {
  max-width: 100%;
}

a {
  color: inherit;
}

.container {
  width: min(100% - (2 * var(--page-pad)), var(--max));
  margin-inline: auto;
}

/* ------------------------------ Navigation ------------------------------ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px var(--page-pad);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--navy);
  font-size: 22px;
  font-weight: 800;
  white-space: nowrap;
}

.brand-logo {
  width: 58px;
  height: 58px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy), var(--blue-dark));
  color: #fff;
  font-size: 17px;
  letter-spacing: -0.5px;
}

.brand-sub {
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.nav-links a {
  padding: 9px 11px;
  text-decoration: none;
  color: #334155;
  font-size: 14px;
  font-weight: 700;
  border-radius: 10px;
  transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--blue-dark);
  background: #f0f9ff;
}

/* ------------------------------ Buttons ------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  transition: 0.25s ease;
}

.btn:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
}

.btn.secondary {
  background: #fff;
  color: var(--navy);
  border-color: var(--line-dark);
}

.btn.secondary:hover {
  color: var(--blue-dark);
  border-color: var(--blue);
  background: #f8fdff;
}

/* ------------------------------ Hero ------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 83% 15%, rgba(14, 165, 233, 0.12), transparent 28%),
    linear-gradient(135deg, #f8fafc 0%, #fff 54%, #eaf7ff 100%);
}

.hero-grid {
  min-height: 78vh;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 56px;
  padding-block: 76px;
}

.eyebrow,
.stage-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1.6px;
  text-transform: uppercase;
}

.eyebrow::before,
.stage-label::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 99px;
  background: var(--blue);
}

.hero h1 {
  margin: 14px 0 18px;
  color: var(--navy);
  font-size: clamp(44px, 5vw, 72px);
  line-height: 1.02;
  letter-spacing: -2px;
}

.hero h1 span {
  color: var(--blue-dark);
}

.hero-copy {
  max-width: 700px;
  color: var(--muted-2);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 30px;
}

.badge {
  padding: 7px 11px;
  border: 1px solid #d7e8f2;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.hero-screen {
  position: relative;
  padding: 10px;
  border-radius: 22px;
  background: var(--navy);
  box-shadow: var(--shadow-lg);
  transform: perspective(1100px) rotateY(-2deg);
}

.hero-screen::before {
  content: "REAL SETU INTERFACE";
  position: absolute;
  z-index: 2;
  top: -17px;
  right: 22px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1px;
}

.hero-screen img {
  display: block;
  width: 100%;
  border-radius: 14px;
}

/* ------------------------------ General sections ------------------------------ */
section {
  padding: 82px 0;
}

.section-soft {
  background: var(--surface-soft);
}

.section-dark {
  background: var(--navy);
  color: #fff;
}

.section-title {
  max-width: 860px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-title.left {
  margin-inline: 0;
  text-align: left;
}

.section-title h2 {
  margin: 9px 0 10px;
  color: var(--navy);
  font-size: clamp(30px, 3vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.7px;
}

.section-dark .section-title h2 {
  color: #fff;
}

.section-title p {
  color: var(--muted);
  font-size: 17px;
}

.section-dark .section-title p {
  color: #cbd5e1;
}

.subheading {
  margin-bottom: 10px;
  color: var(--navy);
  font-size: 30px;
  line-height: 1.2;
}

.lead {
  color: var(--muted-2);
  font-size: 17px;
}

/* ------------------------------ Workflow map ------------------------------ */
.workflow-map {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.workflow-step {
  position: relative;
  min-height: 170px;
  padding: 23px 20px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--blue);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.workflow-step span {
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1.2px;
}

.workflow-step h3 {
  margin: 7px 0 6px;
  color: var(--navy);
  font-size: 20px;
}

.workflow-step p {
  color: var(--muted);
  font-size: 14px;
}

/* ------------------------------ Feature layouts ------------------------------ */
.feature {
  display: grid;
  grid-template-columns: 1.03fr 0.97fr;
  align-items: center;
  gap: 54px;
  margin-block: 34px 72px;
}

.feature.reverse > :first-child {
  order: 2;
}

.feature-copy h3 {
  margin: 10px 0 12px;
  color: var(--navy);
  font-size: 30px;
  line-height: 1.2;
}

.feature-copy > p {
  color: var(--muted-2);
  font-size: 17px;
}

.feature-points {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.feature-point {
  position: relative;
  padding-left: 24px;
  color: #475569;
  font-size: 15px;
}

.feature-point::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 10px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px #e0f2fe;
}

.media-frame {
  overflow: hidden;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  box-shadow: var(--shadow-md);
}

.media-frame img,
.media-frame video {
  display: block;
  width: 100%;
  border-radius: 11px;
  background: #e9eef2;
}

.media-frame video {
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #0b1220;
}

.media-caption {
  padding: 11px 8px 3px;
  color: var(--muted);
  font-size: 12px;
}

.media-link {
  display: block;
  text-decoration: none;
}

/* ------------------------------ Cards / grids ------------------------------ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card-grid.four {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.card h3 {
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 19px;
}

.card p {
  color: var(--muted);
  font-size: 14px;
}

.card .mini-label {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.mini-media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.mini-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #f3f7fa;
}

.mini-media .copy {
  padding: 17px 18px 20px;
}

.mini-media h4 {
  color: var(--navy);
  font-size: 17px;
}

.mini-media p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

/* ------------------------------ Callouts ------------------------------ */
.callout {
  padding: 24px 26px;
  border-left: 5px solid var(--blue);
  border-radius: 0 16px 16px 0;
  background: #f0f9ff;
}

.callout strong {
  display: block;
  margin-bottom: 5px;
  color: var(--navy);
  font-size: 18px;
}

.callout p {
  color: var(--muted-2);
}

.note {
  margin-top: 18px;
  padding: 15px 17px;
  border: 1px solid #d8e7ef;
  border-radius: 13px;
  background: #fbfdff;
  color: #475569;
  font-size: 13px;
}

.note b {
  color: var(--navy);
}

/* ------------------------------ Parameter chips ------------------------------ */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 19px;
}

.chip {
  padding: 8px 12px;
  border: 1px solid #d7e8f2;
  border-radius: 999px;
  background: #fff;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.section-dark .chip {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.07);
  color: #e2e8f0;
}

/* ------------------------------ Toolpath strategy cards ------------------------------ */
.strategy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.strategy-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.strategy-card.patented {
  border-color: #a8d8ef;
  background: linear-gradient(180deg, #f5fcff 0%, #fff 100%);
}

.strategy-card .tag {
  display: inline-block;
  margin-bottom: 9px;
  padding: 5px 8px;
  border-radius: 999px;
  background: #e0f2fe;
  color: #0369a1;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.strategy-card h3 {
  color: var(--navy);
  font-size: 19px;
}

.strategy-card p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 14px;
}

/* ------------------------------ Comparison ------------------------------ */
.comparison-banner {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 38px;
  margin-top: 35px;
  padding: 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #0f172a, #12395a);
  color: #fff;
}

.comparison-banner h3 {
  font-size: 30px;
  line-height: 1.15;
}

.comparison-banner p {
  margin-top: 10px;
  color: #dbeafe;
}

.comparison-banner .chips {
  margin-top: 18px;
}

.comparison-banner .media-frame {
  box-shadow: none;
  border-color: rgba(255, 255, 255, 0.15);
}

/* ------------------------------ Stats ------------------------------ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.stat {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.stat b {
  display: block;
  color: var(--navy);
  font-size: 17px;
}

.stat span {
  color: var(--muted);
  font-size: 12px;
}

/* ------------------------------ Details ------------------------------ */
details {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

details summary {
  cursor: pointer;
  padding: 15px 17px;
  color: var(--navy);
  font-weight: 800;
}

details .details-body {
  padding: 0 17px 17px;
  color: var(--muted-2);
  font-size: 14px;
}

/* ------------------------------ Utilities ------------------------------ */
.utility-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.utility-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.utility-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #edf3f6;
}

.utility-card .copy {
  padding: 22px;
}

.utility-card h3 {
  color: var(--navy);
  font-size: 19px;
}

.utility-card p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 14px;
}

/* ------------------------------ CTA ------------------------------ */
.cta {
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: #fff;
  text-align: center;
}

.cta .container {
  max-width: 920px;
}

.cta h2 {
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.15;
}

.cta p {
  margin: 12px auto 26px;
  color: #dbeafe;
  font-size: 17px;
}

/* ------------------------------ Footer ------------------------------ */
footer {
  padding: 24px var(--page-pad);
  background: #020617;
  color: #cbd5e1;
  text-align: center;
  font-size: 13px;
}

/* ------------------------------ Responsive ------------------------------ */
@media (max-width: 1100px) {
  .hero-grid,
  .feature,
  .comparison-banner {
    grid-template-columns: 1fr;
  }

  .feature.reverse > :first-child {
    order: 0;
  }

  .workflow-map {
    grid-template-columns: repeat(3, 1fr);
  }

  .strategy-grid,
  .card-grid.four {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-screen {
    transform: none;
  }
}

@media (max-width: 760px) {
  :root {
    --page-pad: 5%;
  }

  .navbar {
    position: relative;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero-grid {
    min-height: auto;
    padding-block: 55px;
  }

  .hero-copy {
    font-size: 17px;
  }

  section {
    padding: 62px 0;
  }

  .workflow-map,
  .strategy-grid,
  .card-grid,
  .card-grid.four,
  .utility-grid,
  .mini-grid,
  .stat-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    gap: 28px;
    margin-bottom: 50px;
  }

  .comparison-banner {
    padding: 23px;
  }

  .hero-actions .btn {
    width: 100%;
  }
}