/* ==========================================================================
   Insight LNG Shipping Co., Limited — main stylesheet
   Dark steel-navy theme
   ========================================================================== */

:root {
  --bg: #0C1216;
  --bg-soft: #0F171D;
  --surface: #13202A;
  --surface-2: #182631;
  --line: #20303B;
  --line-soft: #1A2832;
  --steel: #3A5A78;
  --steel-dark: #2C465E;
  --steel-deep: #24384B;
  --steel-light: #4A7094;
  --pale: #9DB8CC;
  --mist: #C9D4DC;
  --text: #E6EEF4;
  --text-dim: #B8C7D3;
  --white: #FFFFFF;
  --font-sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-size: 16px;
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--pale);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--text);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
}

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ==========================================================================
   COMPASS NAVIGATION
   ========================================================================== */

.compass-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg);
  border-bottom: 1px solid var(--steel);
}

.nav-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  justify-self: start;
  color: var(--text);
}

.brand:hover {
  color: var(--text);
}

.compass-rose {
  position: relative;
  display: inline-block;
  width: 26px;
  height: 26px;
  background-color: var(--steel);
  border-radius: 50%;
  flex-shrink: 0;
}

.compass-rose::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  background-color: var(--white);
  transform: translate(-50%, -50%) rotate(45deg);
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  justify-self: center;
}

.nav-link {
  display: inline-block;
  position: relative;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background-color: transparent;
}

.nav-link:hover {
  color: var(--text);
}

.nav-link.active {
  color: var(--text);
}

.nav-link.active::after {
  background-color: var(--steel);
}

.nav-cta {
  display: inline-block;
  justify-self: end;
  padding: 10px 20px;
  background-color: var(--steel);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: 1px solid var(--steel);
  border-radius: 2px;
  white-space: nowrap;
}

.nav-cta:hover {
  background-color: var(--steel-light);
  border-color: var(--steel-light);
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  justify-self: end;
  width: 44px;
  height: 44px;
  padding: 10px;
  background-color: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text);
}

/* ==========================================================================
   HERO — CARGO SHIP
   ========================================================================== */

.ship-hero {
  background-color: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 88px 0 96px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

.hero-eyebrow {
  display: inline-block;
  padding: 7px 14px;
  background-color: var(--steel);
  color: var(--pale);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 2px;
  margin-bottom: 26px;
}

.hero-title {
  font-size: 46px;
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 34px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--steel);
  border-color: var(--steel);
  color: var(--text);
}

.btn-primary:hover {
  background-color: var(--steel-light);
  border-color: var(--steel-light);
  color: var(--text);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--pale);
  color: var(--pale);
}

.btn-outline:hover {
  border-color: var(--text);
  color: var(--text);
}

.btn-light {
  background-color: var(--text);
  border-color: var(--text);
  color: var(--steel-deep);
}

.btn-light:hover {
  background-color: var(--white);
  border-color: var(--white);
  color: var(--steel-deep);
}

/* Cargo ship illustration */

.hero-visual {
  display: flex;
  justify-content: center;
}

.cargo-ship {
  position: relative;
  width: 380px;
  height: 260px;
}

.ship-hull {
  position: absolute;
  left: 30px;
  bottom: 46px;
  width: 320px;
  height: 96px;
  background-color: var(--steel);
  clip-path: polygon(3% 0%, 97% 0%, 86% 100%, 14% 100%);
}

.ship-deck-line {
  position: absolute;
  left: 34px;
  bottom: 138px;
  width: 312px;
  height: 9px;
  background-color: var(--pale);
  border-radius: 4px;
}

.ship-deck-box {
  position: absolute;
  border-radius: 5px;
}

.box-a {
  left: 84px;
  bottom: 148px;
  width: 66px;
  height: 36px;
  background-color: var(--pale);
}

.box-b {
  left: 166px;
  bottom: 148px;
  width: 78px;
  height: 36px;
  background-color: var(--mist);
}

.ship-funnel {
  position: absolute;
  left: 192px;
  bottom: 184px;
  width: 30px;
  height: 28px;
  background-color: var(--mist);
  border-radius: 2px;
}

.ship-water {
  position: absolute;
  left: 40px;
  height: 7px;
  background-color: var(--pale);
  border-radius: 4px;
}

.w1 {
  bottom: 24px;
  width: 300px;
}

.w2 {
  bottom: 10px;
  width: 220px;
}

.ship-wave {
  position: absolute;
  width: 34px;
  height: 4px;
  background-color: var(--pale);
  border-radius: 2px;
  transform: rotate(-28deg);
}

.wave-a {
  left: 6px;
  bottom: 44px;
}

.wave-b {
  left: 16px;
  bottom: 26px;
}

/* ==========================================================================
   STATEMENT ROW
   ========================================================================== */

.statement-row {
  padding: 96px 0;
  border-bottom: 1px solid var(--line);
}

.statement-row .container {
  max-width: 960px;
}

.statement-mark {
  display: block;
  width: 18px;
  height: 18px;
  background-color: var(--steel);
  border-radius: 50%;
  margin-bottom: 28px;
}

.statement-text {
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.4;
  color: var(--text);
  letter-spacing: -0.01em;
}

.statement-text em {
  color: var(--pale);
  font-style: normal;
}

/* ==========================================================================
   ROUTE ROWS
   ========================================================================== */

.route-rows {
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 40px;
}

.section-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 12px;
}

.section-title {
  font-size: 34px;
}

.section-intro {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 640px;
  margin-top: 16px;
}

.route-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.route-row:last-child {
  border-bottom: 1px solid var(--line);
}

.route-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.route-desc {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 640px;
}

.route-code {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  background-color: var(--steel);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* ==========================================================================
   SPEC ROWS
   ========================================================================== */

.spec-rows {
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.spec-row:last-child {
  border-bottom: 1px solid var(--line);
}

.spec-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.spec-value {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--text);
  text-align: right;
  white-space: nowrap;
}

/* ==========================================================================
   FLAG ROWS
   ========================================================================== */

.flag-rows {
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}

.flag-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.flag-row:last-child {
  border-bottom: 1px solid var(--line);
}

.flag-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.flag-desc {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 640px;
}

.flag-marker {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.flag-marker.steel {
  background-color: var(--steel);
}

.flag-marker.pale {
  background-color: var(--pale);
}

.flag-marker.mist {
  background-color: var(--mist);
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */

.faq-section {
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}

.faq-section .container {
  max-width: 860px;
}

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

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding: 22px 0;
  background-color: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
}

.faq-question:hover {
  color: var(--pale);
}

.faq-icon {
  position: relative;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: var(--pale);
  transform: translate(-50%, -50%);
}

.faq-icon::before {
  width: 16px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 16px;
  transition: transform 0.2s ease;
}

.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 0 24px;
  color: var(--text-dim);
  font-size: 16px;
  max-width: 720px;
}

/* ==========================================================================
   CTA BAND
   ========================================================================== */

.cta-band {
  background-color: var(--steel);
  padding: 88px 0;
}

.cta-band .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-title {
  font-size: 32px;
  color: var(--text);
  max-width: 560px;
}

/* ==========================================================================
   BRIDGE FOOTER
   ========================================================================== */

.bridge-footer {
  background-color: var(--bg);
  border-top: 3px solid var(--steel);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 1fr;
  gap: 48px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px 48px;
}

.footer-brand-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: var(--steel);
  margin-bottom: 16px;
}

.footer-brand-marker::after {
  content: "";
  width: 12px;
  height: 12px;
  background-color: var(--white);
  transform: rotate(45deg);
}

.footer-wordmark {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--text);
  margin-bottom: 12px;
}

.footer-desc {
  color: var(--text-dim);
  font-size: 14px;
  max-width: 340px;
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-dim);
  font-size: 15px;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-contact {
  list-style: none;
}

.footer-contact li {
  color: var(--text-dim);
  font-size: 15px;
  margin-bottom: 10px;
  line-height: 1.5;
}

.footer-contact a {
  color: var(--text-dim);
}

.footer-contact a:hover {
  color: var(--text);
}

.footer-legal {
  border-top: 1px solid var(--line);
  padding: 20px 32px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
}

.footer-legal a {
  color: var(--pale);
}

.footer-legal a:hover {
  color: var(--text);
}

/* ==========================================================================
   SECONDARY PAGE HERO / SECTIONS
   ========================================================================== */

.page-hero {
  background-color: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 80px 0 72px;
}

.page-hero .container {
  max-width: 960px;
}

.page-eyebrow {
  display: inline-block;
  padding: 6px 13px;
  background-color: var(--steel);
  color: var(--pale);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 2px;
  margin-bottom: 22px;
}

.page-title {
  font-size: 42px;
  margin-bottom: 18px;
}

.page-lede {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 720px;
}

.content-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--line);
}

.content-section .container {
  max-width: 960px;
}

.content-section h2 {
  font-size: 28px;
  margin-bottom: 18px;
}

.content-section p {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 18px;
  max-width: 820px;
}

.content-section p:last-child {
  margin-bottom: 0;
}

/* Service cards */

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

.service-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  padding: 30px;
}

.service-card h3 {
  font-size: 20px;
  margin-bottom: 14px;
}

.service-card p {
  font-size: 15px;
  color: var(--text-dim);
  margin-bottom: 0;
}

.service-card-num {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mist);
  margin-bottom: 14px;
}

/* Process overview */

.process-list {
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.process-num {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--pale);
}

.process-step h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.process-step p {
  margin-bottom: 0;
}

/* ==========================================================================
   CONTACT PAGE
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact-info-list {
  list-style: none;
  margin-top: 24px;
}

.contact-info-list li {
  margin-bottom: 22px;
}

.contact-info-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 6px;
}

.contact-info-value {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.6;
}

.contact-info-value a {
  color: var(--pale);
}

.contact-form .field {
  margin-bottom: 20px;
}

.contact-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--text);
  font-size: 16px;
  font-family: var(--font-sans);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--steel);
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.form-status {
  margin-top: 16px;
  font-size: 14px;
  color: var(--pale);
  min-height: 20px;
}

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-visual {
    order: 2;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 760px) {
  .nav-inner {
    grid-template-columns: 1fr auto;
    height: 60px;
    padding: 0 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--bg);
    border-bottom: 1px solid var(--steel);
    padding: 8px 0;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    padding: 14px 20px;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link.active {
    background-color: var(--surface);
    border-left: 3px solid var(--steel);
  }

  .nav-cta {
    display: none;
  }

  .ship-hero {
    padding: 56px 0 64px;
  }

  .hero-inner {
    padding: 0 20px;
    gap: 40px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .cargo-ship {
    transform: scale(0.82);
    transform-origin: center;
  }

  .statement-row {
    padding: 64px 0;
  }

  .statement-text {
    font-size: 24px;
  }

  .route-rows,
  .spec-rows,
  .flag-rows,
  .faq-section,
  .content-section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .spec-value {
    font-size: 20px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .process-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 0 20px 40px;
  }

  .cta-band .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-title {
    font-size: 26px;
  }

  .container,
  .page-hero .container {
    padding: 0 20px;
  }
}