:root {
  --navy: #101b2a;
  --navy-light: #192b40;
  --blue: #2868a7;
  --blue-light: #e9f2fb;
  --orange: #ed8a43;
  --text: #263446;
  --muted: #718096;
  --white: #ffffff;
  --light: #f4f6f9;
  --border: #e5eaf0;
  --heading: "Manrope", sans-serif;
  --body: "DM Sans", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 95px;
}

body {
  font-family: var(--body);
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  overflow-x: hidden;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: min(1160px, calc(100% - 44px));
  margin: 0 auto;
}

.section-padding {
  padding: 105px 0;
}

.site-header {
  height: 82px;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-symbol {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: white;
  font-family: var(--heading);
  font-size: 24px;
  font-weight: 800;
  border-radius: 9px;
}

.brand-name,
.brand-subtitle {
  display: block;
  line-height: 1.3;
}

.brand-name {
  font-family: var(--heading);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 1.1px;
  color: var(--navy);
}

.brand-subtitle {
  font-size: 9px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 2.2px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 27px;
}

.desktop-nav button,
.mobile-menu button {
  background: none;
  border: 0;
  color: #48566a;
  font-size: 13px;
  font-weight: 600;
  transition: color .2s;
}

.desktop-nav button:hover,
.mobile-menu button:hover {
  color: var(--blue);
}

.header-button {
  border: 1px solid var(--border);
  background: white;
  padding: 11px 17px;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  border-radius: 5px;
}

.header-button span {
  color: var(--orange);
  margin-left: 8px;
}

.mobile-toggle {
  display: none;
  border: none;
  background: none;
  width: 34px;
  padding: 5px;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--navy);
  margin: 6px 0;
}

.mobile-menu {
  display: none;
  background: white;
  padding: 15px 24px 22px;
  border-bottom: 1px solid var(--border);
}

.mobile-menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 0;
}

.hero {
  min-height: 690px;
  position: relative;
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(8,18,31,.96) 0%, rgba(8,18,31,.87) 47%, rgba(8,18,31,.30) 100%),
    url("https://images.unsplash.com/photo-1492144534655-ae79c964c9d7?auto=format&fit=crop&w=2000&q=90") center 53% / cover no-repeat;
  color: white;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 60px;
  padding-bottom: 60px;
}

.eyebrow,
.section-label {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--blue);
  margin-bottom: 20px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #d4e6fa;
}

.eyebrow-line {
  width: 34px;
  height: 2px;
  background: var(--orange);
}

.hero h1 {
  font-family: var(--heading);
  font-size: clamp(46px, 6vw, 76px);
  line-height: 1.12;
  letter-spacing: -3px;
  max-width: 750px;
  margin-bottom: 25px;
}

.hero h1 span {
  color: #8fc3f4;
}

.hero-description {
  max-width: 600px;
  color: #d0d8e3;
  font-size: 16px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 25px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.primary-button {
  padding: 15px 23px;
  background: var(--orange);
  color: white;
  border: 0;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 800;
  transition: .25s;
}

.primary-button:hover {
  background: #d8742e;
  transform: translateY(-2px);
}

.primary-button span {
  margin-left: 16px;
}

.hero-note {
  color: #d4dce6;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 9px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #78c7a2;
  border-radius: 50%;
}

.hero-stats {
  display: flex;
  gap: 55px;
  margin-top: 78px;
  border-top: 1px solid rgba(255,255,255,.25);
  padding-top: 25px;
  max-width: 620px;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-family: var(--heading);
  font-size: 22px;
  color: white;
}

.hero-stats span {
  font-size: 11px;
  color: #c4cfdb;
}

.breadcrumb {
  padding-top: 20px;
  padding-bottom: 20px;
  font-size: 11px;
  display: flex;
  gap: 11px;
  align-items: center;
  flex-wrap: wrap;
  color: var(--muted);
}

.crumb-divider {
  color: #b2bdca;
}

.breadcrumb strong {
  color: var(--navy);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.35fr .8fr;
  gap: 80px;
  align-items: start;
}

.intro-main h2,
.story-content h2,
.process-intro h2,
.safety-content h2,
.faq-heading h2 {
  font-family: var(--heading);
  color: var(--navy);
  font-size: clamp(30px, 3.4vw, 43px);
  line-height: 1.25;
  letter-spacing: -1.5px;
  margin-bottom: 25px;
}

.intro-main p,
.story-content p,
.process-intro p {
  color: #637184;
  font-size: 14px;
  line-height: 2;
  margin-bottom: 18px;
}

.intro-main a {
  color: #1d65a9;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: #a7c8e8;
  text-underline-offset: 4px;
}

.intro-main a:hover {
  color: #ed8a43;
}

.intro-aside {
  padding-top: 15px;
}

.intro-aside > img {
  width: 100%;
  height: 290px;
  object-fit: cover;
  border-radius: 7px;
  display: block;
}

.aside-card {
  background: var(--navy);
  color: white;
  padding: 30px;
  margin: -30px 18px 0;
  position: relative;
  border-radius: 5px;
}

.aside-number {
  font-size: 11px;
  color: var(--orange);
  font-weight: 800;
}

.aside-card h3 {
  font-family: var(--heading);
  font-size: 20px;
  margin: 12px 0;
}

.aside-card p {
  color: #c7d2df;
  font-size: 12px;
  line-height: 1.9;
}

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

.light-label {
  color: #8fc3f4;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 45px;
  margin-bottom: 45px;
}

.section-heading-row h2 {
  font-family: var(--heading);
  font-size: 43px;
  line-height: 1.2;
  letter-spacing: -1.5px;
}

.section-heading-row > p {
  color: #bdc9d6;
  max-width: 390px;
  font-size: 13px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.feature-card {
  border: 1px solid rgba(255,255,255,.14);
  padding: 29px 23px;
  border-radius: 5px;
  background: rgba(255,255,255,.035);
  transition: .25s;
}

.feature-card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,.08);
}

.feature-icon {
  width: 42px;
  height: 42px;
  border: 1px solid var(--orange);
  color: var(--orange);
  display: grid;
  place-items: center;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 27px;
}

.feature-card h3 {
  font-family: var(--heading);
  font-size: 16px;
  margin-bottom: 14px;
}

.feature-card p {
  color: #bdc9d6;
  font-size: 12px;
  line-height: 1.9;
}

.image-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 75px;
}

.story-image {
  position: relative;
}

.story-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: 7px;
  display: block;
}

.image-caption {
  position: absolute;
  bottom: 15px;
  left: 15px;
  right: 15px;
  background: rgba(12,25,41,.88);
  color: white;
  padding: 13px 15px;
  font-size: 11px;
  border-radius: 4px;
}

.highlight-note {
  background: var(--blue-light);
  border-left: 3px solid var(--blue);
  padding: 20px 23px;
  margin-top: 27px;
}

.highlight-note strong {
  font-size: 13px;
  color: var(--navy);
}

.highlight-note p {
  font-size: 12px;
  margin: 7px 0 0;
}

.gray-section {
  background: var(--light);
}

.section-title {
  font-family: var(--heading);
  font-size: clamp(30px, 3.4vw, 42px);
  color: var(--navy);
  line-height: 1.25;
  letter-spacing: -1.4px;
  max-width: 760px;
}

.section-intro {
  color: var(--muted);
  font-size: 14px;
  max-width: 690px;
  margin-top: 17px;
  margin-bottom: 42px;
}

.issue-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.issue-card {
  padding: 30px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 5px;
  transition: .25s;
}

.issue-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(20,40,70,.07);
}

.issue-tag {
  color: var(--blue);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 1.5px;
}

.issue-card h3 {
  font-family: var(--heading);
  font-size: 19px;
  line-height: 1.4;
  color: var(--navy);
  margin: 16px 0 12px;
}

.issue-card p {
  font-size: 12px;
  color: #738094;
  line-height: 1.95;
}

.process-layout {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 85px;
}

.process-intro p {
  font-size: 13px;
}

.process-list {
  border-top: 1px solid var(--border);
}

.process-item {
  display: flex;
  gap: 25px;
  padding: 25px 0;
  border-bottom: 1px solid var(--border);
}

.process-item > span {
  color: var(--orange);
  font-family: var(--heading);
  font-size: 19px;
  font-weight: 800;
}

.process-item h3 {
  font-family: var(--heading);
  color: var(--navy);
  font-size: 16px;
  margin-bottom: 7px;
}

.process-item p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.safety-section {
  background: var(--navy-light);
  color: white;
}

.safety-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 75px;
  align-items: center;
}

.safety-image img {
  display: block;
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: 6px;
}

.safety-content h2 {
  color: white;
}

.safety-content > p {
  font-size: 13px;
  color: #c4cfdb;
  line-height: 2;
  margin-bottom: 15px;
}

.safety-warning {
  background: rgba(237,138,67,.12);
  border: 1px solid rgba(237,138,67,.4);
  padding: 19px;
  margin-top: 25px;
  display: flex;
  gap: 15px;
  align-items: flex-start;
}

.safety-warning span {
  width: 25px;
  height: 25px;
  flex-shrink: 0;
  background: var(--orange);
  color: white;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.safety-warning p {
  font-size: 11px;
  line-height: 1.9;
  color: #f0d8c8;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 17px;
  margin-top: 38px;
}

.model-card {
  border: 1px solid var(--border);
  padding: 25px;
  border-radius: 5px;
  background: white;
  transition: .2s;
}

.model-card:hover {
  border-color: #aac8e5;
}

.model-number {
  font-size: 11px;
  color: var(--orange);
  font-weight: 800;
}

.model-card h3 {
  font-family: var(--heading);
  font-size: 17px;
  margin: 13px 0 7px;
  color: var(--navy);
}

.model-card p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
}

.faq-section {
  background: var(--light);
}

.faq-layout {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 80px;
  align-items: start;
}

.faq-heading p {
  color: var(--muted);
  font-size: 13px;
}

.faq-list {
  border-top: 1px solid #dce3eb;
}

.faq-item {
  border-bottom: 1px solid #dce3eb;
}

.faq-question {
  width: 100%;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  gap: 20px;
  border: 0;
  background: transparent;
  color: var(--navy);
  font-family: var(--heading);
  font-size: 14px;
  font-weight: 700;
}

.faq-question span {
  color: var(--orange);
  font-size: 23px;
  font-weight: 400;
}

.faq-answer {
  display: none;
  padding: 0 35px 20px 0;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-answer p {
  color: #718096;
  font-size: 12px;
  line-height: 1.95;
}

.closing-section {
  background:
    linear-gradient(90deg, rgba(13,28,46,.97), rgba(13,28,46,.86)),
    url("https://images.unsplash.com/photo-1486262715619-67b85e0b08d3?auto=format&fit=crop&w=1800&q=85") center / cover;
  padding: 95px 0;
  text-align: center;
  color: white;
}

.closing-content {
  max-width: 770px;
}

.closing-content h2 {
  font-family: var(--heading);
  font-size: clamp(38px, 5vw, 58px);
  line-height: 1.18;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.closing-content > p {
  color: #cbd4df;
  font-size: 13px;
  max-width: 650px;
  margin: 0 auto 30px;
  line-height: 2;
}

.site-footer {
  background: #0b1421;
  color: white;
  padding: 55px 0 25px;
}

.footer-brand .brand-symbol {
  background: var(--orange);
}

.footer-brand .brand-name {
  color: white;
}

.footer-brand .brand-subtitle {
  color: #9da9b8;
}

.site-footer > .container > p {
  max-width: 440px;
  color: #9da9b8;
  font-size: 12px;
  margin: 25px 0 40px;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.13);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  color: #8996a6;
  font-size: 10px;
}

.reading-progress {
  height: 3px;
  background: var(--orange);
  width: 0;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
}

@media (max-width: 1000px) {
  .desktop-nav {
    gap: 13px;
  }

  .desktop-nav button {
    font-size: 11px;
  }

  .intro-grid,
  .image-story,
  .safety-grid {
    gap: 40px;
  }

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

  .process-layout,
  .faq-layout {
    gap: 45px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 34px, 560px);
  }

  .section-padding {
    padding: 72px 0;
  }

  .site-header {
    height: 70px;
  }

  .desktop-nav,
  .header-button {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .mobile-menu.open {
    display: block;
  }

  .hero {
    min-height: 660px;
    background-position: 60% center;
  }

  .hero h1 {
    font-size: clamp(42px, 11vw, 60px);
    letter-spacing: -2px;
  }

  .hero-description {
    font-size: 14px;
  }

  .hero-stats {
    gap: 25px;
    margin-top: 55px;
  }

  .hero-stats strong {
    font-size: 18px;
  }

  .hero-stats span {
    font-size: 9px;
  }

  .intro-grid,
  .image-story,
  .process-layout,
  .safety-grid,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .intro-grid,
  .image-story,
  .process-layout,
  .safety-grid,
  .faq-layout {
    gap: 40px;
  }

  .intro-aside {
    padding: 0;
  }

  .intro-aside > img {
    height: 270px;
  }

  .section-heading-row {
    display: block;
  }

  .section-heading-row h2 {
    font-size: 34px;
    margin-bottom: 18px;
  }

  .feature-grid {
    gap: 12px;
  }

  .feature-card {
    padding: 22px 17px;
  }

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

  .story-image img,
  .safety-image img {
    height: 320px;
  }

  .faq-heading h2 {
    font-size: 34px;
  }

  .closing-section {
    padding: 75px 0;
  }
}

@media (max-width: 440px) {
  .issue-grid,
  .model-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 17px;
  }

  .hero-stats {
    justify-content: space-between;
    gap: 10px;
  }

  .brand-name {
    font-size: 12px;
  }

  .brand-symbol {
    width: 39px;
    height: 39px;
  }

  .faq-question {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    transition-duration: .01ms !important;
  }
}