/* ============================================================
   6LsMS LLC — Brand Stylesheet
   Dark navy / teal / gold nuclear-industry palette
   ============================================================ */

/* ----- TOKENS ----- */
:root {
  /* Brand palette */
  --navy:       #0D1B2A;
  --navy-mid:   #132233;
  --navy-light: #1a2e42;
  --teal:       #01838C;
  --teal-light: #01a9b5;
  --teal-dim:   rgba(1,131,140,0.15);
  --gold:       #B8860B;
  --gold-light: #D4A017;
  --gold-dim:   rgba(184,134,11,0.15);

  /* Surface & text (dark-first) */
  --color-bg:      #0a1520;
  --color-surface: #0d1b2a;
  --color-surface-2: #112030;
  --color-border:  rgba(1,131,140,0.2);
  --color-text:    #D0D8E4;
  --color-text-muted: #7A8FA6;
  --color-text-faint: #3F5268;

  /* Type scale */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl:  clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* Radius */
  --r-sm:  0.375rem;
  --r-md:  0.625rem;
  --r-lg:  1rem;
  --r-xl:  1.5rem;
  --r-full: 9999px;

  /* Fonts */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'Inter', 'Helvetica Neue', sans-serif;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast:   150ms var(--ease);
  --t-normal: 280ms var(--ease);
  --t-slow:   500ms var(--ease);

  --content-default: 1080px;
  --content-narrow:  720px;
}

/* ----- RESET ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; }
p, li { text-wrap: pretty; max-width: 72ch; }
a { color: var(--teal-light); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--gold-light); }

/* ----- CONTAINER ----- */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--sp-4), 5vw, var(--sp-8));
}

/* ----- NAV ----- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--t-normal), box-shadow var(--t-normal), transform var(--t-normal);
}
.nav.scrolled {
  background: rgba(10, 21, 32, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}
.nav.hidden { transform: translateY(-100%); }

.nav-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--sp-4), 5vw, var(--sp-8));
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  color: var(--color-text);
}
.nav-logo:hover { color: var(--color-text); }
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  color: var(--color-text);
}
.nav-logo-img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  list-style: none;
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  transition: color var(--t-fast);
}
.nav-links a:hover { color: var(--color-text); }
.nav-links .nav-cta {
  background: var(--teal);
  color: #fff;
  padding: 0.45rem 1.1rem;
  border-radius: var(--r-full);
  font-weight: 500;
}
.nav-links .nav-cta:hover { background: var(--teal-light); color: #fff; }

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--sp-2);
}
.nav-mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(10, 21, 32, 0.97);
  border-top: 1px solid var(--color-border);
  padding: var(--sp-4) clamp(var(--sp-4), 5vw, var(--sp-8));
  gap: var(--sp-2);
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--color-border);
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu a:hover { color: var(--color-text); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: flex; align-items: center; }
}

/* ----- HERO ----- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: var(--sp-24);
  padding-top: calc(var(--sp-24) + 4rem);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  top: 10%; left: -20%;
  width: 70vw; height: 70vw;
  max-width: 900px; max-height: 900px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(1,131,140,0.08) 0%, transparent 65%);
}
.hero-hex-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(1,131,140,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(1,131,140,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 50%, rgba(0,0,0,0.6) 0%, transparent 70%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-12);
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--sp-4), 5vw, var(--sp-8));
  width: 100%;
}
.hero-content { flex: 1; max-width: 640px; }
.hero-visual { flex-shrink: 0; opacity: 0.8; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--teal-light);
  background: var(--teal-dim);
  border: 1px solid rgba(1,131,140,0.3);
  border-radius: var(--r-full);
  padding: 0.35rem 1rem;
  margin-bottom: var(--sp-6);
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal-light);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
.badge-dot--delayed {
  animation-delay: 1s;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: #E8EEF5;
  line-height: 1.08;
  margin-bottom: var(--sp-6);
}
.hero-headline em {
  font-style: italic;
  color: var(--gold-light);
}
.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-8);
  max-width: 55ch;
}
.hero-actions {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--teal);
  color: #fff;
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-full);
  text-decoration: none;
  transition: background var(--t-fast), transform var(--t-fast);
  letter-spacing: 0.01em;
}
.btn-primary:hover { background: var(--teal-light); color: #fff; transform: translateY(-1px); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-full);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--color-text); }

.hex-mark {
  filter: drop-shadow(0 0 32px rgba(184,134,11,0.25));
  animation: float 6s ease-in-out infinite;
}
.hero-logo-img {
  width: 260px;
  height: 260px;
  object-fit: contain;
  display: block;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (max-width: 768px) {
  .hero { align-items: flex-start; min-height: auto; }
  .hero .container { flex-direction: column; }
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; }
}

/* ----- SECTION COMMON ----- */
section { padding-block: clamp(var(--sp-16), 8vw, var(--sp-24)); }

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-light);
  margin-bottom: var(--sp-4);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: #E8EEF5;
  line-height: 1.1;
  margin-bottom: var(--sp-6);
}
.section-lead {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin-bottom: var(--sp-12);
}

/* ----- MISSION ----- */
.mission { background: var(--navy); }

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  margin-bottom: var(--sp-16);
  max-width: 600px;
}

.problem-card {
  background: var(--color-surface-2, #112030);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-6);
  transition: border-color var(--t-normal), transform var(--t-normal);
}
.problem-card:hover {
  border-color: rgba(1,131,140,0.5);
  transform: translateY(-3px);
}
.problem-icon {
  width: 52px; height: 52px;
  background: var(--teal-dim);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal-light);
  margin-bottom: var(--sp-6);
}
.problem-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: #E8EEF5;
  margin-bottom: var(--sp-3);
}
.problem-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.mission-statement {
  border-left: 3px solid var(--gold);
  padding-left: var(--sp-8);
  max-width: 700px;
}
.mission-statement blockquote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: #D0D8E4;
  line-height: 1.5;
  margin-bottom: var(--sp-4);
  max-width: 65ch;
}
.mission-statement cite {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: normal;
  letter-spacing: 0.02em;
}

/* ----- SOLUTIONS ----- */
.solutions { background: var(--color-bg); }

.solutions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}
@media (max-width: 768px) { .solutions-grid { grid-template-columns: 1fr; } }

.solution-card {
  background: var(--navy);
  border: 1px solid var(--color-border);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  transition: border-color var(--t-normal), transform var(--t-normal);
}
.solution-card:hover {
  border-color: rgba(1,131,140,0.45);
  transform: translateY(-2px);
}
.solution-card--primary {
  border-color: rgba(1,131,140,0.35);
  background: linear-gradient(135deg, #0D1B2A 0%, #0e2236 100%);
}
.solution-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--sp-6);
}
.solution-icon {
  width: 56px; height: 56px;
  background: var(--teal-dim);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal-light);
  flex-shrink: 0;
}
.solution-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid rgba(184,134,11,0.3);
  border-radius: var(--r-full);
  padding: 0.25rem 0.75rem;
}
.solution-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: #E8EEF5;
  margin-bottom: var(--sp-4);
  line-height: 1.25;
}
.solution-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-6);
}
.solution-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.solution-features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--sp-6);
  position: relative;
  max-width: none;
}
.solution-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

.solutions-nda-note {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-6);
  max-width: fit-content;
}

/* ----- MARKET ----- */
.market { background: var(--navy); }

.market-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-16);
}
@media (max-width: 900px) { .market-stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .market-stats { grid-template-columns: 1fr 1fr; } }

.stat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  transition: border-color var(--t-normal);
}
.stat-card:hover { border-color: rgba(1,131,140,0.5); }
.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: var(--sp-3);
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}

.market-positioning {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-12);
  align-items: start;
}
@media (max-width: 768px) { .market-positioning { grid-template-columns: 1fr; } }

.positioning-text h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: #E8EEF5;
  margin-bottom: var(--sp-4);
}
.positioning-text p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}
.positioning-text p:last-child { margin-bottom: 0; }

.positioning-badges {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  min-width: 260px;
}
@media (max-width: 768px) {
  .positioning-badges {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: auto;
  }
}
.badge-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  padding: var(--sp-3) var(--sp-4);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.badge-item:hover { border-color: var(--teal); color: var(--color-text); }
.badge-item svg { color: var(--teal-light); flex-shrink: 0; }

/* ----- FOUNDER ----- */
.founder { background: var(--color-bg); }

.founder-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(var(--sp-8), 6vw, var(--sp-16));
  align-items: start;
}
@media (max-width: 768px) { .founder-layout { grid-template-columns: 1fr; } }

.founder-visual { display: flex; justify-content: center; }
.founder-hex-frame { filter: drop-shadow(0 0 32px rgba(1,131,140,0.2)); }

.founder-name {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: #E8EEF5;
  line-height: 1.1;
  margin-bottom: var(--sp-2);
}
.founder-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--sp-6);
}
.founder-divider {
  width: 48px; height: 2px;
  background: var(--teal);
  margin-bottom: var(--sp-6);
}
.founder-bio p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}
.founder-bio p:last-of-type { margin-bottom: var(--sp-8); }

.founder-credentials {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.credentials-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.credential {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--navy);
  border: 1px solid var(--color-border);
  border-radius: var(--r-full);
  padding: 0.35rem 0.9rem;
  transition: border-color var(--t-fast);
}
.credential:hover { border-color: rgba(1,131,140,0.4); }
.credential svg { color: var(--teal-light); }

/* ----- CONTACT ----- */
.contact { background: var(--navy); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  transition: border-color var(--t-normal), transform var(--t-normal);
}
.contact-card:hover {
  border-color: rgba(1,131,140,0.4);
  transform: translateY(-2px);
}
.contact-icon {
  width: 48px; height: 48px;
  background: var(--teal-dim);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal-light);
  margin: 0 auto var(--sp-4);
}
.contact-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--sp-2);
}
.contact-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  word-break: break-word;
  line-height: 1.4;
}
a.contact-value:hover { color: var(--teal-light); }

.nda-notice {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-6);
  max-width: fit-content;
  margin-top: var(--sp-4);
}
.nda-notice svg { flex-shrink: 0; color: var(--color-text-faint); }

/* ----- FOOTER ----- */
.footer {
  background: var(--navy);
  border-top: 1px solid var(--color-border);
  padding-block: var(--sp-8);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: var(--color-text-muted);
}
.footer-tagline {
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-faint);
}
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ----- SCROLL REVEAL ----- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----- ACCESSIBILITY ----- */
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}