:root {
  --linna-blue: #1238fc;
  --linna-blue-dark: #0b24b8;
  --linna-blue-light: #eef1ff;
  --linna-ink: #10101a;
  --linna-muted: #5f6472;
  --linna-line: #e8e9ee;
  --linna-white: #ffffff;
  --linna-surface: #f7f7fb;
}

html { scroll-behavior: smooth; }
body { color: var(--linna-muted); background: var(--linna-white); }
body, button, a { font-family: "Inter", sans-serif; }
h1, h2, h3, h4, h5, h6 { color: var(--linna-ink); }

.linna-header {
  position: fixed; inset: 0 0 auto; z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(16, 16, 26, 0.08);
  backdrop-filter: blur(14px); transition: box-shadow 0.25s ease;
}
.linna-header.is-scrolled { box-shadow: 0 14px 40px rgba(16, 16, 26, 0.08); }
.linna-nav { min-height: 78px; }
.linna-brand { display: flex; align-items: center; width: 188px; height: 58px; flex: 0 0 auto; }
.linna-brand img { display: block; width: 178px; height: auto; }
.linna-nav .navbar-nav .nav-item > a.nav-link { color: var(--linna-ink); font-weight: 600; font-size: 0.93rem; padding: 0.75rem 0.9rem !important; }
.linna-nav .navbar-nav .nav-item > a.nav-link:hover,
.linna-nav .navbar-nav .nav-item > a.nav-link:focus { color: var(--linna-blue); opacity: 1; }
.text-primary { color: var(--linna-blue) !important; }
.linna-nav .navbar-toggler { border: 0; color: var(--linna-ink); font-size: 1.55rem; }

.linna-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem;
  min-height: 50px; padding: 0.8rem 1.35rem; border: 1px solid transparent;
  border-radius: 12px; font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.linna-button:hover { transform: translateY(-2px); }
.linna-button-primary { color: var(--linna-white); background: var(--linna-blue); box-shadow: 0 12px 30px rgba(18, 56, 252, 0.24); }
.linna-button-primary:hover { color: var(--linna-white); background: var(--linna-blue-dark); }
.linna-button-light { color: var(--linna-blue); background: var(--linna-white); }
.linna-button-light:hover { color: var(--linna-blue-dark); background: #f0f3ff; }
.linna-button-outline { color: var(--linna-ink); background: transparent; border-color: rgba(16, 16, 26, 0.18); }
.linna-button-outline:hover { color: var(--linna-blue); border-color: var(--linna-blue); }

.linna-hero {
  position: relative; overflow: hidden; padding: 158px 0 92px; color: var(--linna-white);
  background: radial-gradient(circle at 85% 18%, rgba(91, 121, 255, 0.55), transparent 28%), linear-gradient(135deg, #06113f 0%, var(--linna-blue) 58%, #3156ff 100%);
}
.linna-hero::before {
  content: ""; position: absolute; inset: 0; opacity: 0.16;
  background-image: linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
  background-size: 54px 54px; mask-image: linear-gradient(to right, transparent, #000 60%);
}
.linna-hero .container { position: relative; z-index: 1; }
.linna-eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem; margin-bottom: 1.25rem;
  color: inherit; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase;
}
.linna-eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; opacity: 0.7; }
.linna-hero h1 { max-width: 760px; margin-bottom: 1.4rem; color: var(--linna-white); font-size: clamp(2.55rem, 5vw, 4.7rem); font-weight: 800; line-height: 1.04; letter-spacing: -0.045em; }
.linna-hero-lead { max-width: 670px; margin-bottom: 2rem; color: rgba(255, 255, 255, 0.82); font-size: clamp(1.03rem, 1.8vw, 1.25rem); line-height: 1.75; }
.linna-hero-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.linna-hero-visual { position: relative; margin: 0; padding: .55rem; border: 1px solid rgba(255,255,255,.24); border-radius: 28px; background: rgba(255,255,255,.1); box-shadow: 0 32px 90px rgba(0,0,0,.3); transform: rotate(1.5deg); }
.linna-hero-visual::before { content: ""; position: absolute; inset: -16px 18% auto; z-index: -1; height: 65%; border-radius: 50%; background: rgba(126,119,255,.4); filter: blur(40px); }
.linna-hero-visual img { display: block; width: 100%; aspect-ratio: 4 / 4.5; border-radius: 21px; object-fit: cover; object-position: 52% center; }
.linna-visual-badge { position: absolute; left: -24px; bottom: 26px; display: flex; align-items: center; gap: .85rem; min-width: 228px; padding: .9rem 1rem; border: 1px solid rgba(255,255,255,.25); border-radius: 14px; color: var(--linna-white); background: rgba(7,30,142,.86); box-shadow: 0 18px 46px rgba(0,0,0,.26); backdrop-filter: blur(12px); transform: rotate(-1.5deg); }
.linna-visual-badge small, .linna-visual-badge strong { display: block; }
.linna-visual-badge small { margin-bottom: .1rem; color: rgba(255,255,255,.64); font-size: .67rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.linna-visual-badge strong { color: var(--linna-white); font-size: .92rem; }
.linna-live-dot { width: 9px; height: 9px; border-radius: 50%; background: #79f2c0; box-shadow: 0 0 0 6px rgba(121,242,192,.13); }

.linna-section { padding: 96px 0; }
.linna-section-soft { background: var(--linna-surface); }
.linna-section-dark { color: rgba(255,255,255,.72); background: var(--linna-ink); }
.linna-section-dark h2, .linna-section-dark h3, .linna-section-dark h4 { color: var(--linna-white); }
.linna-section-heading { max-width: 720px; margin-bottom: 3rem; }
.linna-section-heading.centered { margin-right: auto; margin-left: auto; text-align: center; }
.linna-section-heading h2 { margin-bottom: 1rem; font-size: clamp(2rem, 3.6vw, 3.2rem); font-weight: 800; line-height: 1.12; letter-spacing: -0.035em; }
.linna-section-heading p { margin: 0; font-size: 1.05rem; line-height: 1.75; }

.linna-card { height: 100%; padding: 2rem; border: 1px solid var(--linna-line); border-radius: 20px; background: var(--linna-white); transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease; }
.linna-card:hover { transform: translateY(-5px); border-color: rgba(18,56,252,.24); box-shadow: 0 24px 60px rgba(16,16,26,.08); }
.linna-card-icon { display: inline-flex; align-items: center; justify-content: center; width: 58px; height: 58px; margin-bottom: 1.5rem; border-radius: 16px; color: var(--linna-blue); background: var(--linna-blue-light); font-size: 1.65rem; }
.linna-card h3 { margin-bottom: 0.8rem; font-size: 1.22rem; font-weight: 750; }
.linna-card p { margin: 0; line-height: 1.7; }

.linna-platform { overflow: hidden; border-radius: 28px; background: linear-gradient(135deg, #06113f 0%, var(--linna-blue) 100%); }
.linna-platform-copy { padding: clamp(2.2rem, 5vw, 4.5rem); }
.linna-platform-copy h2 { margin-bottom: 1.3rem; color: var(--linna-white); font-size: clamp(2rem, 3.5vw, 3.1rem); font-weight: 800; letter-spacing: -0.04em; }
.linna-platform-copy p { max-width: 580px; color: rgba(255,255,255,.74); line-height: 1.75; }
.linna-flow { padding: 2rem; }
.linna-flow-step { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; padding: 1.1rem 1.2rem; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; color: var(--linna-white); background: rgba(255,255,255,.08); }
.linna-flow-step:last-child { margin-bottom: 0; background: rgba(255,255,255,.18); }
.linna-flow-number { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; flex: 0 0 auto; border-radius: 50%; color: var(--linna-blue); background: var(--linna-white); font-size: .8rem; font-weight: 800; }

.linna-segment { height: 100%; min-height: 240px; padding: 2rem; border-radius: 20px; position: relative; overflow: hidden; color: var(--linna-white); background: var(--linna-ink); }
.linna-segment::after { content: ""; position: absolute; width: 150px; height: 150px; right: -55px; bottom: -55px; border-radius: 50%; background: var(--linna-blue); opacity: .55; }
.linna-segment i { margin-bottom: 2rem; color: #6f8aff; font-size: 1.8rem; }
.linna-segment h3 { margin-bottom: .7rem; color: var(--linna-white); font-size: 1.25rem; }
.linna-segment p { position: relative; z-index: 1; margin: 0; color: rgba(255,255,255,.68); line-height: 1.65; }

.linna-feature-story { overflow: hidden; margin-top: 4rem; border: 1px solid var(--linna-line); border-radius: 28px; background: var(--linna-white); box-shadow: 0 30px 80px rgba(16,16,26,.08); }
.linna-feature-image { height: 100%; min-height: 460px; background: var(--linna-ink); }
.linna-feature-image img { width: 100%; height: 100%; min-height: 460px; object-fit: cover; }
.linna-feature-copy { display: flex; flex-direction: column; justify-content: center; height: 100%; padding: clamp(2.2rem, 5vw, 4.5rem); }
.linna-feature-copy h3 { margin-bottom: 1rem; font-size: clamp(1.9rem, 3vw, 2.8rem); font-weight: 800; line-height: 1.12; letter-spacing: -.035em; }
.linna-feature-copy p { margin-bottom: 1.5rem; line-height: 1.75; }
.linna-feature-copy ul { display: grid; gap: .85rem; margin: 0; padding: 0; list-style: none; }
.linna-feature-copy li { display: flex; align-items: flex-start; gap: .65rem; color: var(--linna-ink); font-weight: 650; }
.linna-feature-copy li i { margin-top: .15rem; color: var(--linna-blue); }

.linna-process-item { position: relative; padding: 0 1.2rem 1rem 4.3rem; min-height: 96px; }
.linna-process-number { position: absolute; left: 0; top: 0; display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 15px; color: var(--linna-white); background: var(--linna-blue); font-size: .78rem; font-weight: 800; }
.linna-process-item h3 { margin-bottom: .45rem; font-size: 1.1rem; }
.linna-process-item p { margin: 0; line-height: 1.6; }

.linna-care-list { margin: 0; padding: 0; list-style: none; }
.linna-care-list li { display: flex; gap: .8rem; margin-bottom: 1rem; color: rgba(255,255,255,.78); }
.linna-care-list i { margin-top: .2rem; color: #6f8aff; }
.linna-operation-visual { overflow: hidden; margin: 0 0 1.6rem; padding: .4rem; border: 1px solid rgba(255,255,255,.14); border-radius: 22px; background: rgba(255,255,255,.06); box-shadow: 0 24px 70px rgba(0,0,0,.3); }
.linna-operation-visual img { display: block; width: 100%; aspect-ratio: 16 / 9; border-radius: 17px; object-fit: cover; }
.linna-cta { position: relative; overflow: hidden; padding: clamp(2.4rem, 6vw, 5rem); border-radius: 28px; color: rgba(255,255,255,.76); background: var(--linna-blue); }
.linna-cta::after { content: ""; position: absolute; width: 330px; height: 330px; right: -120px; top: -150px; border: 70px solid rgba(255,255,255,.08); border-radius: 50%; }
.linna-cta h2 { position: relative; z-index: 1; max-width: 760px; margin-bottom: 1rem; color: var(--linna-white); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 800; letter-spacing: -.04em; }
.linna-cta p, .linna-cta .linna-button { position: relative; z-index: 1; }
.linna-contact-actions { position: relative; z-index: 1; display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 1.25rem; }
.linna-contact-link { display: inline-flex; align-items: center; gap: .55rem; color: var(--linna-white); font-weight: 700; }
.linna-contact-link:hover { color: var(--linna-white); opacity: .78; }

.linna-footer { padding: 58px 0 30px; color: rgba(255,255,255,.6); background: #080811; }
.linna-footer-wordmark { display: inline-flex; align-items: flex-end; gap: .25rem; margin-bottom: 1rem; color: var(--linna-white); font-size: 3rem; font-weight: 800; line-height: 1; letter-spacing: -.06em; }
.linna-footer-wordmark small { margin-bottom: .18rem; color: rgba(255,255,255,.7); font-size: .86rem; font-weight: 700; letter-spacing: 0; }
.linna-footer p { max-width: 440px; line-height: 1.7; }
.linna-footer a { color: rgba(255,255,255,.76); }
.linna-footer a:hover { color: var(--linna-white); }
.linna-footer-bottom { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.1); font-size: .87rem; }
.back-to-top { display: none; align-items: center; justify-content: center; position: fixed; right: 24px; bottom: 24px; z-index: 99; width: 46px; height: 46px; border-radius: 12px; color: var(--linna-white); background: var(--linna-blue); box-shadow: 0 10px 30px rgba(18,56,252,.28); }
.back-to-top:hover { color: var(--linna-white); transform: translateY(-3px); }

@media (max-width: 991.98px) {
  .linna-nav .navbar-collapse { margin: 0 -0.75rem; padding: 1rem; border-top: 1px solid var(--linna-line); background: var(--linna-white); }
  .linna-nav .linna-button { margin-top: .5rem; }
  .linna-hero { padding-top: 132px; }
  .linna-hero-visual { max-width: 680px; margin: 3rem auto 0; transform: none; }
  .linna-hero-visual img { aspect-ratio: 16 / 10; }
  .linna-visual-badge { left: 22px; transform: none; }
}
@media (max-width: 767.98px) {
  .linna-nav { min-height: 70px; }
  .linna-brand { width: 162px; height: 52px; }
  .linna-brand img { width: 154px; }
  .linna-hero { padding: 120px 0 72px; }
  .linna-section { padding: 72px 0; }
  .linna-section-heading { margin-bottom: 2.25rem; }
  .linna-hero-visual { margin-top: 2rem; }
  .linna-hero-visual img { aspect-ratio: 4 / 4.3; }
  .linna-visual-badge { right: 16px; left: 16px; bottom: 16px; min-width: 0; }
  .linna-feature-story { margin-top: 2.5rem; }
  .linna-feature-image, .linna-feature-image img { min-height: 290px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}