/* Flagship Technologies LLC - public site */
:root {
  --color-page: #f7f7f5;
  --color-paper: #ffffff;
  --color-ink: #252421;
  --color-muted: #69655d;
  --color-line: #d8d9d3;
  --color-accent: #385646;
  --color-accent-dark: #263d31;
  --color-warm: #a98f58;
  --page-glow: url("/assets/hero-gradient.svg") top center / min(1500px, 130vw) auto no-repeat;
  --shadow-soft: 0 18px 45px rgba(37, 36, 33, 0.08);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

html[lang="ja"] {
  --font-sans: "LINE Seed JP", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "LINE Seed JP", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-page);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background:
    var(--page-glow),
    var(--color-page);
  color: var(--color-ink);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-home {
  --color-page: #fbf7f2;
  --color-accent: #386b70;
  --color-accent-dark: #22494d;
  --color-warm: #d9809f;
  --page-glow: url("/assets/hero-gradient.svg") top center / clamp(1200px, 112vw, 2100px) auto no-repeat;
}

.page-about {
  --color-page: #f3f5ee;
  --color-accent: #55715c;
  --color-accent-dark: #31483a;
  --color-warm: #b88455;
  --page-glow:
    radial-gradient(circle at 12% 14%, rgba(181, 212, 172, 0.58), transparent 32rem),
    radial-gradient(circle at 87% 18%, rgba(240, 207, 151, 0.36), transparent 28rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.62), transparent 42rem);
}

.page-services {
  --color-page: #f0f6fb;
  --color-accent: #2e6392;
  --color-accent-dark: #1b4266;
  --color-warm: #d69a45;
  --page-glow:
    radial-gradient(circle at 82% 8%, rgba(73, 165, 219, 0.36), transparent 30rem),
    radial-gradient(circle at 10% 24%, rgba(169, 212, 238, 0.54), transparent 34rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.7), transparent 45rem);
}

.page-insights {
  --color-page: #fbf3e4;
  --color-accent: #91601e;
  --color-accent-dark: #5e3b12;
  --color-warm: #c05d3d;
  --page-glow:
    radial-gradient(circle at 20% 12%, rgba(255, 205, 122, 0.45), transparent 31rem),
    radial-gradient(circle at 84% 24%, rgba(255, 151, 111, 0.28), transparent 32rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.76), transparent 44rem);
}

.page-contact {
  --color-page: #fff3ef;
  --color-accent: #af5f50;
  --color-accent-dark: #7b3d35;
  --color-warm: #d88f50;
  --page-glow:
    radial-gradient(circle at 14% 16%, rgba(255, 170, 147, 0.42), transparent 32rem),
    radial-gradient(circle at 86% 8%, rgba(250, 206, 123, 0.42), transparent 28rem),
    radial-gradient(circle at 60% 60%, rgba(255, 255, 255, 0.78), transparent 26rem);
}

.page-not-found {
  --color-page: #f6f4ef;
  --color-accent: #5d6552;
  --color-accent-dark: #343b2e;
  --color-warm: #b88c4a;
  --page-glow:
    radial-gradient(circle at 18% 16%, rgba(205, 195, 162, 0.52), transparent 32rem),
    radial-gradient(circle at 86% 20%, rgba(139, 158, 123, 0.32), transparent 30rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), transparent 42rem);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 247, 245, 0.82);
  border-bottom: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  backdrop-filter: blur(12px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.site-nav a {
  border-bottom: 2px solid transparent;
  color: var(--color-muted);
  font-size: 0.94rem;
  font-weight: 600;
  padding: 0.35rem 0;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--color-warm);
  color: var(--color-ink);
}

.language-switch {
  bottom: max(1.15rem, env(safe-area-inset-bottom));
  filter: drop-shadow(0 14px 28px rgba(37, 36, 33, 0.16));
  position: fixed;
  right: max(1.15rem, env(safe-area-inset-right));
  z-index: 30;
}

.language-switch summary {
  align-items: center;
  background: var(--color-ink);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: #ffffff;
  cursor: pointer;
  display: inline-flex;
  height: 3.15rem;
  justify-content: center;
  list-style: none;
  transition: background 160ms ease, transform 160ms ease;
  width: 3.15rem;
}

.language-switch summary::-webkit-details-marker {
  display: none;
}

.language-switch summary:hover,
.language-switch[open] summary {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.language-switch summary:focus-visible {
  box-shadow: 0 0 0 4px rgba(169, 143, 88, 0.32);
  outline: none;
}

.language-switch__icon {
  align-items: center;
  display: inline-flex;
  font-size: 1rem;
  gap: 0;
  justify-content: center;
  line-height: 1;
}

.language-switch__icon span + span {
  margin-left: -0.46rem;
}

.language-switch__menu {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  bottom: calc(100% + 0.7rem);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 0.2rem;
  min-width: 9.5rem;
  padding: 0.4rem;
  position: absolute;
  right: 0;
}

.language-switch__menu a {
  align-items: center;
  border-radius: 5px;
  color: var(--color-ink);
  display: flex;
  font-size: 0.92rem;
  font-weight: 750;
  gap: 0.55rem;
  padding: 0.62rem 0.75rem;
  text-decoration: none;
  white-space: nowrap;
}

.language-switch__menu a:hover,
.language-switch__menu a:focus-visible {
  background: #ecece8;
  outline: none;
}

main {
  flex: 1;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 86px);
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.75fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(4rem, 9vw, 7rem) 0;
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 0.85rem;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.08;
}

h1 {
  font-size: clamp(3rem, 8vw, 6.8rem);
  max-width: 11ch;
  margin-bottom: 1.35rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.8rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.12rem;
  line-height: 1.3;
  margin-bottom: 0.7rem;
}

p {
  color: var(--color-muted);
}

.lead {
  color: #4c4943;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  max-width: 690px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  appearance: none;
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 4px;
  color: #ffffff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 800;
  min-height: 2.85rem;
  padding: 0.78rem 1.1rem;
  text-decoration: none;
}

.button:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.button.secondary {
  background: transparent;
  color: var(--color-accent-dark);
}

.button.secondary:hover {
  background: #ecece8;
}

.hero-panel,
.feature-card,
.contact-note {
  background: var(--color-paper);
  border: 1px solid var(--color-line);
  border-radius: 6px;
  box-shadow: var(--shadow-soft);
}

.hero-panel {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  padding: 1.5rem;
}

.page-about .feature-card,
.page-about .hero-panel,
.page-about .contact-note {
  background: rgba(255, 255, 255, 0.72);
}

.page-services .service-row {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.54), transparent);
  padding-inline: clamp(1rem, 3vw, 1.75rem);
}

.page-services .service-row:first-child {
  border-radius: 14px 14px 0 0;
}

.page-services .service-row:last-child {
  border-radius: 0 0 14px 14px;
}

.page-insights .blog-list li {
  background: rgba(255, 255, 255, 0.42);
  padding-inline: 1rem;
}

.page-contact .contact-card,
.page-contact .contact-note {
  background: rgba(255, 255, 255, 0.76);
}

.hero-panel p {
  color: var(--color-ink);
  font-weight: 800;
}

.hero-panel ul,
.contact-note ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-panel li,
.contact-note li {
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  padding: 0.95rem 0;
}

.section,
.page-hero,
.split-section,
.service-list,
.contact-layout,
.insights-shell {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

.page-hero {
  border-bottom: 1px solid var(--color-line);
}

.page-hero.compact {
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

.page-hero h1 {
  max-width: 12ch;
}

.not-found-hero {
  align-content: center;
  min-height: calc(100vh - 190px);
}

.not-found-hero h1 {
  font-size: clamp(2.9rem, 6.2vw, 5.4rem);
  max-width: 12ch;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card {
  padding: 1.35rem;
}

.feature-card p {
  margin-bottom: 0;
}

.band {
  align-items: center;
  background: var(--color-ink);
  color: #ffffff;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(240px, 0.8fr);
  gap: 2rem;
  margin: 1rem 0 clamp(3rem, 7vw, 5rem);
  padding: clamp(2rem, 5vw, 3.5rem);
}

.band h2 {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  margin: 0;
}

.band p {
  color: #d8d2c7;
  margin: 0;
}

.band .eyebrow {
  color: var(--color-warm);
  margin-bottom: 0.7rem;
}

.band .button {
  justify-self: start;
  background: #ffffff;
  border-color: #ffffff;
  color: var(--color-ink);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 6vw, 5rem);
  border-bottom: 1px solid var(--color-line);
}

.text-stack p {
  font-size: 1.08rem;
}

.service-list {
  display: grid;
  gap: 0;
}

.service-row {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-line);
}

.service-row:first-child {
  border-top: 1px solid var(--color-line);
}

.service-row h2 {
  font-family: var(--font-sans);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 750;
  line-height: 1.2;
  margin: 0;
}

.service-row p:last-child {
  font-size: 1.05rem;
  margin-bottom: 0;
}

.service-number {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 0.7rem;
}

.insights-shell {
  padding-top: 2rem;
}

.blog-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.blog-list li {
  align-items: baseline;
  border-bottom: 1px solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  padding: 1.25rem 0;
}

.blog-list li:first-child {
  border-top: 1px solid var(--color-line);
}

.blog-list a {
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3vw, 2.35rem);
  line-height: 1.15;
  text-decoration: none;
}

.blog-list a:hover {
  color: var(--color-accent);
}

.blog-list time {
  color: var(--color-muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.blog-article {
  max-width: 760px;
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

.blog-article h1 {
  margin-bottom: 0.5rem;
}

.blog-article .meta {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.blog-article .body {
  color: var(--color-ink);
}

.blog-article .body h2 {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 750;
  margin-top: 1.75rem;
}

.blog-article .body p {
  color: var(--color-ink);
}

.blog-article .body ul {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.contact-card {
  display: grid;
  gap: 1.1rem;
  align-self: start;
  padding: clamp(1.35rem, 3vw, 2rem);
}

.contact-card h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  margin: 0;
  max-width: 10ch;
}

.contact-card p:not(.eyebrow) {
  color: var(--color-muted);
  margin: 0;
  max-width: 54ch;
}

.contact-verify {
  color: var(--color-muted);
  font-size: 0.94rem;
}

.contact-card[data-verified="false"] .email-link {
  display: none;
}

.contact-card[data-verified="true"] .contact-verify,
.contact-card[data-verified="true"] .cf-turnstile {
  display: none;
}

.email-link {
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: #ffffff;
  color: var(--color-ink);
  display: inline-flex;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.1;
  overflow-wrap: anywhere;
  padding: 0.95rem 1rem;
  text-decoration: none;
  width: fit-content;
}

.email-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.contact-note {
  align-self: start;
  padding: 1.35rem;
}

.site-footer {
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 auto;
  padding: 1.25rem clamp(1rem, 4vw, 3rem);
  width: 100%;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--color-accent-dark);
  font-weight: 750;
  text-decoration: none;
}

@media (min-width: 1440px) {
  .page-home {
    --page-glow: url("/assets/hero-gradient.svg") top center / clamp(1900px, 118vw, 3100px) auto no-repeat;
  }
}

@media (max-width: 860px) {
  .page-home {
    background-size: 1200px auto, auto;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero,
  .feature-grid,
  .band,
  .split-section,
  .service-row,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .band .button {
    justify-self: stretch;
  }
}

@media (max-width: 520px) {
  main {
    width: min(100% - 1.25rem, 1120px);
  }

  h1 {
    font-size: clamp(2.55rem, 16vw, 4rem);
  }

  .brand {
    white-space: normal;
  }

  .button {
    width: 100%;
  }

  .language-switch {
    bottom: max(0.85rem, env(safe-area-inset-bottom));
    right: max(0.85rem, env(safe-area-inset-right));
  }

  .language-switch summary {
    height: 2.9rem;
    width: 2.9rem;
  }
}