/* ═══════════════════════════════════════════════════════
   Soldek — Strategic Consultancy & Concept Studio
   Trade name: Soldek Capital
   Note: Space Grotesk font is loaded via <link> in HTML
   for faster, non-render-blocking delivery.
   ═══════════════════════════════════════════════════════ */

/* ─── Tokens ────────────────────────────────────────── */

:root {
  --bg: #fafafa;
  --bg-rgb: 250, 250, 250;
  --bg-alt: #eef1f7;

  /* All foreground / text uses Soldek navy for a unified look with the logo */
  --fg: #1e3a8a;
  --fg-rgb: 30, 58, 138;
  --fg-strong: rgba(30, 58, 138, 0.9);
  --fg-muted: rgba(30, 58, 138, 0.65);
  --fg-soft: rgba(30, 58, 138, 0.45);
  --fg-faint: rgba(30, 58, 138, 0.22);
  --fg-line: rgba(30, 58, 138, 0.12);
  --fg-ghost: rgba(30, 58, 138, 0.05);

  /* Soldek brand: dark navy primary, orange secondary */
  --accent: #1e3a8a;
  --accent-deep: #0f1e4d;
  --accent-soft: rgba(30, 58, 138, 0.08);
  --accent-line: rgba(30, 58, 138, 0.2);
  --accent-2: #f97316;
  --accent-2-soft: rgba(249, 115, 22, 0.12);

  --font: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.25s cubic-bezier(0.16, 1, 0.3, 1);

  --nav-height: 72px;
  --container: 1200px;
}

/* ─── Reset / base ──────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  width: 100%;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  animation: pageIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes pageIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* ─── Background layers ─────────────────────────────── */

#canvas-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.noise {
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  z-index: 9998;
  pointer-events: none;
  opacity: 0.022;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 9997;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(var(--bg-rgb), 0.85) 100%);
}

.line-accent {
  position: fixed;
  background: var(--fg);
  opacity: 0;
  z-index: 9996;
  pointer-events: none;
  animation: lineReveal 3s ease 1.5s forwards;
}

.line-accent.top {
  top: 0;
  left: 50%;
  width: 1px;
  height: 50px;
}

.line-accent.bottom {
  bottom: 0;
  left: 50%;
  width: 1px;
  height: 50px;
}

@keyframes lineReveal {
  to { opacity: 0.05; }
}

/* ─── Layout primitives ─────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

section {
  position: relative;
  z-index: 1;
}

.section {
  padding: clamp(5rem, 10vw, 8rem) 0;
}

/* ─── Section text ─────────────────────────────────── */

.section-label {
  display: inline-block;
  position: relative;
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  opacity: 0.25;
  font-weight: 400;
  margin-bottom: 2.5rem;
}

.section-label::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--fg);
  opacity: 0.12;
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.section-label.in-view::after {
  width: 100%;
}

.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

/* word-by-word reveal */
.section-title .word-wrap {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}

.section-title .word {
  display: inline-block;
  transform: translateY(105%);
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.section-title.title-visible .word {
  transform: translateY(0);
}

.section-text {
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  font-weight: 300;
  opacity: 0.55;
  line-height: 1.75;
  max-width: 620px;
  margin-bottom: 3rem;
}

/* ─── Navigation ───────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(var(--bg-rgb), 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--fg-ghost);
}

.nav-logo {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  user-select: none;
  z-index: 10001;
  color: var(--accent);
}

.nav-logo .sol {
  color: var(--accent);
}

.nav-logo .dek {
  font-weight: 300;
  color: var(--accent);
  opacity: 0.45;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  position: relative;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.4;
  transition: opacity var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  opacity: 1;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--fg);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  z-index: 10001;
}

.lang-toggle {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.4;
  border: 1px solid var(--fg-line);
  padding: 0.4rem 0.7rem;
  font-family: var(--font);
  color: var(--fg);
  transition: all var(--transition);
}

.lang-toggle:hover {
  opacity: 0.9;
  border-color: var(--fg-faint);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.55rem 1.25rem;
  border: 1px solid var(--fg-faint);
  transition: all var(--transition);
}

.nav-cta:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Hamburger */

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 10001;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--fg);
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 10000;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.55;
  transition: opacity var(--transition);
}

.mobile-menu a:hover { opacity: 1; }

.mobile-menu .mobile-cta {
  margin-top: 1.5rem;
  display: inline-flex;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: none;
  opacity: 1;
  padding: 0.85rem 1.8rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
}

/* ─── Buttons ──────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.95rem 2rem;
  border: 1px solid var(--fg-faint);
  background: transparent;
  color: var(--fg);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-2);
  color: #fff;
  border-color: var(--accent-2);
}

.btn-lg {
  padding: 1.15rem 2.4rem;
  font-size: 0.82rem;
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* ─── Hero ─────────────────────────────────────────── */

.hero {
  --hero-progress: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 2rem) clamp(1.5rem, 4vw, 3rem) 4rem;
  position: relative;
}

.hero-badge {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.3;
  font-weight: 400;
  margin-bottom: 2rem;
  transform: translateY(calc(var(--hero-progress) * 20px));
  transition: transform 0.1s linear;
}

.hero h1 {
  font-size: clamp(2.4rem, 6.4vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  max-width: 920px;
  margin-bottom: 1.75rem;
  transform: translateY(calc(var(--hero-progress) * 40px));
  opacity: calc(1 - var(--hero-progress) * 1.5);
  transition: transform 0.1s linear, opacity 0.1s linear;
  will-change: transform, opacity;
}

.hero h1 .thin {
  font-weight: 300;
  opacity: 0.4;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  font-weight: 300;
  opacity: 0.5;
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 3rem;
  transform: translateY(calc(var(--hero-progress) * 30px));
  opacity: calc(0.5 - var(--hero-progress) * 0.8);
  transition: transform 0.1s linear, opacity 0.1s linear;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: center;
  transform: translateY(calc(var(--hero-progress) * 50px));
  opacity: calc(1 - var(--hero-progress) * 2);
  transition: transform 0.1s linear, opacity 0.1s linear;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 50px;
  background: var(--fg);
  opacity: 0.06;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.06; height: 50px; }
  50% { opacity: 0.14; height: 65px; }
}

/* ─── Brand marquee ────────────────────────────────── */

.marquee-band {
  padding: 2.25rem 0;
  border-top: 1px solid var(--fg-line);
  border-bottom: 1px solid var(--fg-line);
  background: var(--bg);
  overflow: hidden;
  position: relative;
}

.marquee {
  display: flex;
  overflow: hidden;
  user-select: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-shrink: 0;
  list-style: none;
  padding: 0;
  margin: 0;
  white-space: nowrap;
  animation: marquee-scroll 50s linear infinite;
  will-change: transform;
}

.marquee-track li {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-strong);
  flex-shrink: 0;
}

.marquee-track .marquee-dot {
  font-size: 0.85rem;
  color: var(--accent-2);
  letter-spacing: 0;
  line-height: 1;
}

@keyframes marquee-scroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

.marquee-band:hover .marquee-track {
  animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track {
    animation: none;
  }
  .marquee {
    overflow-x: auto;
    -webkit-mask-image: none;
    mask-image: none;
  }
}

/* ─── Services grid ────────────────────────────────── */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--fg-line);
  border: 1px solid var(--fg-line);
  margin-top: 3rem;
}

.service-tile {
  background: var(--bg);
  padding: clamp(2rem, 3vw, 3rem) clamp(1.5rem, 2.5vw, 2.5rem);
  display: flex;
  flex-direction: column;
  transition: background var(--transition);
}

.service-tile:hover {
  background: var(--bg-alt);
}

.service-tile .service-num {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.18;
  margin-bottom: 2rem;
  font-weight: 500;
  transition: opacity var(--transition);
}

.service-tile.icon-active .service-num {
  opacity: 0.4;
}

.service-tile h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
  line-height: 1.25;
}

.service-tile p {
  font-size: 0.88rem;
  font-weight: 300;
  opacity: 0.55;
  line-height: 1.7;
  flex: 1;
}

/* ─── Methodology steps ────────────────────────────── */

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3rem;
  position: relative;
}

.method-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 16.66%;
  width: 66.66%;
  height: 1px;
  background: var(--fg);
  opacity: 0.06;
}

.method-step {
  text-align: center;
}

.method-step .step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--fg-faint);
  background: var(--bg);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.method-step.icon-active .step-num {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  transform: scale(1.08);
}

.method-step h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.7rem;
}

.method-step p {
  font-size: 0.85rem;
  font-weight: 300;
  opacity: 0.5;
  line-height: 1.65;
  max-width: 280px;
  margin: 0 auto;
}

/* ─── CTA card ─────────────────────────────────────── */

.cta-band {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(4rem, 6vw, 5rem);
}

.cta-card {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 4rem) clamp(2rem, 4vw, 3.5rem);
  border: 1px solid var(--fg-line);
  background: rgba(var(--bg-rgb), 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: center;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: var(--accent-2);
  opacity: 0.85;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.cta-card.visible::before {
  transform: scaleY(1);
}

.cta-eyebrow {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.cta-headline {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 2.25rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  margin-bottom: 2.25rem;
}

.cta-fallback {
  font-size: 0.78rem;
  font-weight: 300;
  opacity: 0.4;
}

.cta-fallback a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  opacity: 0.85;
}

.cta-fallback a:hover { opacity: 1; }

.cta-fallback a + a { margin-left: 0.35rem; }

/* ─── Contact page ─────────────────────────────────── */

.contact-hero {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 1rem;
}

.contact-intro {
  max-width: 720px;
}

.contact-intro .lead {
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  font-weight: 300;
  line-height: 1.55;
  color: var(--fg-strong);
  margin-top: 1.75rem;
}

.section-tight { padding-top: 2rem; }

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 5rem;
  align-items: start;
}

.contact-block-label {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.45;
  margin: 0 0 1.5rem;
}

/* ─── Contact list (left) ─── */

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--fg-line);
}

.contact-row {
  display: grid;
  grid-template-columns: minmax(140px, 200px) 1fr;
  align-items: center;
  gap: 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--fg-line);
}

.contact-row-label {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.55;
}

.contact-row-value {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--fg);
  text-decoration: none;
  transition: color var(--transition), transform var(--transition);
}

.contact-row-value:hover {
  color: var(--fg-strong);
}

.contact-row-arrow {
  width: 20px;
  height: 20px;
  color: var(--accent-2);
  opacity: 1;
  transition: opacity var(--transition), transform var(--transition);
  flex-shrink: 0;
}

.contact-row-value:hover .contact-row-arrow {
  opacity: 1;
  transform: translateX(4px);
}

/* ─── Contact meta (right) ─── */

.contact-meta {
  padding: 1.75rem 0 0;
}

.contact-info-list {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-list > div {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.contact-info-list dt {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.45;
  margin: 0;
}

.contact-info-list dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--fg);
}

/* Contact page nav-cta active state */
.nav-cta-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.nav-cta-active:hover {
  background: var(--accent-2);
  color: #fff;
  border-color: var(--accent-2);
  opacity: 1;
}

/* ─── About hero & lead ───────────────────────────── */

.about-hero {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 0;
}

.about-intro {
  max-width: 720px;
}

.about-intro .lead {
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  font-weight: 300;
  line-height: 1.75;
  opacity: 0.6;
  margin-top: 1.5rem;
}

/* ─── Founder block ───────────────────────────────── */

.founder-section {
  padding-top: clamp(3rem, 6vw, 5rem);
}

.founder-block {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 2rem;
}

.founder-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--fg-ghost);
  border-radius: 50%;
  overflow: hidden;
}

.founder-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.founder-info h3 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.founder-info .role {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.3;
  margin-bottom: 1.5rem;
}

.founder-tagline {
  font-size: 0.96rem;
  font-weight: 300;
  opacity: 0.65;
  line-height: 1.6;
  max-width: 460px;
  margin-bottom: 1.5rem;
}

.founder-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.founder-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--fg-faint);
  transition: all var(--transition);
}

.founder-link:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.founder-link svg {
  width: 15px;
  height: 15px;
  color: var(--accent-2);
  transition: color var(--transition);
}

.founder-link:hover svg {
  color: var(--bg);
}

.founder-link-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.founder-link-primary svg {
  color: #fff;
}

.founder-link-primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  opacity: 1;
}

.signature-img {
  display: block;
  height: 56px;
  width: auto;
  opacity: 0.25;
  filter: grayscale(1) contrast(1.4);
}

/* ─── Concepts page ──────────────────────────────── */

.concepts-hero {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 0;
}

.concepts-intro {
  max-width: 760px;
}

.concepts-intro .lead {
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  font-weight: 300;
  line-height: 1.75;
  opacity: 0.6;
  margin-top: 1.5rem;
}

.concept-section {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  border-top: 1px solid var(--fg-line);
}

.concept-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.concept-block.reverse {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
}

.concept-block.reverse .concept-visual {
  order: 2;
}

.concept-block.reverse .concept-info {
  order: 1;
}

.concept-info .concept-num {
  font-size: 0.62rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  opacity: 0.9;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: block;
  color: var(--accent-2);
}

.concept-info h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.concept-info .concept-tagline {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.45;
  font-weight: 500;
  margin-bottom: 1.75rem;
}

.concept-info .concept-text {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.8;
  opacity: 0.7;
  margin-bottom: 1.5rem;
}

.concept-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  list-style: none;
  padding: 0;
}

.concept-tags li {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--fg-line);
  color: var(--fg-muted);
}

.concept-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.concept-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--fg-faint);
  transition: all var(--transition);
}

.concept-link:hover {
  background: var(--accent-2);
  color: #fff;
  border-color: var(--accent-2);
}

.concept-link svg {
  width: 15px;
  height: 15px;
  transition: transform var(--transition);
}

.concept-link:hover svg {
  transform: translateX(3px);
}

.concept-link-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.concept-link-primary:hover {
  background: var(--accent-2);
  color: #fff;
  border-color: var(--accent-2);
}

/* Visual cards: brand logo on dark navy backdrop */

.concept-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--accent);
  border: 1px solid var(--accent);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 5vw, 4rem);
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.concept-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(249, 115, 22, 0.18) 0%, transparent 55%),
    linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  pointer-events: none;
}

.concept-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 23px, rgba(255, 255, 255, 0.04) 23px, rgba(255, 255, 255, 0.04) 24px),
    repeating-linear-gradient(90deg, transparent 0, transparent 23px, rgba(255, 255, 255, 0.04) 23px, rgba(255, 255, 255, 0.04) 24px);
  pointer-events: none;
  opacity: 0.5;
}

.concept-logo {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 380px;
  height: auto;
  display: block;
  transition: transform var(--transition), opacity var(--transition);
}

.concept-visual-link {
  cursor: pointer;
}

.concept-visual-link:hover {
  border-color: var(--accent-2);
}

.concept-visual-link:hover .concept-logo {
  transform: scale(1.03);
}

.concept-logo-ocfreedom {
  max-width: 360px;
}

.concept-logo-sgi {
  max-width: 320px;
}

/* Building (pitch) section */

.building-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid var(--fg-line);
}

.building-card {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(2.75rem, 5vw, 4.5rem) clamp(2rem, 4vw, 3.5rem);
  border: 1px solid var(--fg-line);
  background: rgba(var(--bg-rgb), 0.6);
  text-align: center;
  overflow: hidden;
}

.building-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: var(--accent-2);
  opacity: 0.85;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.building-card.visible::before {
  transform: scaleY(1);
}

.building-eyebrow {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  opacity: 0.9;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--accent-2);
}

.building-headline {
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 1.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.building-text {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.75;
  opacity: 0.65;
  max-width: 560px;
  margin: 0 auto 2.25rem;
}

.building-actions {
  display: flex;
  justify-content: center;
}

.building-actions .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.building-actions .btn-primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
}

/* ─── Footer ──────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--fg-line);
  padding: clamp(2.5rem, 5vw, 3.5rem) 0;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--accent);
  opacity: 0.9;
}

.footer-logo .sol { color: var(--accent); }
.footer-logo .dek {
  font-weight: 300;
  color: var(--accent);
  opacity: 0.5;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.75rem;
}

.footer-nav a {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.45;
  transition: opacity var(--transition);
}

.footer-nav a:hover { opacity: 1; }

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem 0.9rem;
  margin-top: 0.25rem;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.3;
  font-weight: 400;
}

.footer-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--fg);
  opacity: 0.3;
}

/* ─── Reveal animation ────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ─── Stealth page (single-page letterhead) ─────── */

.stealth-page {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
}

.stealth-header {
  position: relative;
  z-index: 2;
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.5rem, 4vw, 3rem);
}

.stealth-logo {
  display: inline-block;
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--accent);
  user-select: none;
  text-decoration: none;
  opacity: 0.9;
  transition: opacity var(--transition);
}

.stealth-logo:hover { opacity: 1; }
.stealth-logo .sol { color: var(--accent); }
.stealth-logo .dek { font-weight: 300; color: var(--accent); opacity: 0.45; }

.stealth-main {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
}

.stealth-mail {
  position: relative;
  display: inline-block;
  font-size: clamp(1.4rem, 4.5vw, 2.6rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--accent);
  text-decoration: none;
  padding: 0.25em 0;
  word-break: break-word;
  text-align: center;
  transition: color var(--transition);
}

.stealth-mail::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.05em;
  height: 1px;
  background: var(--accent);
  opacity: 0.25;
  transform: scaleX(1);
  transform-origin: left center;
  transition: opacity var(--transition), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.stealth-mail:hover { color: var(--accent-2); }
.stealth-mail:hover::after {
  background: var(--accent-2);
  opacity: 0.7;
  transform: scaleX(1.02);
}

.stealth-footer {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1rem, 4vw, 3rem);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--fg-muted);
  opacity: 0.7;
}

.stealth-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.5;
}

@media (max-width: 480px) {
  .stealth-mail {
    font-size: clamp(1.05rem, 6.5vw, 1.6rem);
  }

  .stealth-footer {
    font-size: 0.6rem;
    gap: 0.5rem;
    letter-spacing: 0.14em;
  }
}

/* ─── Ventures grid (home preview) ───────────────── */

.venture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.venture-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: clamp(1.5rem, 2.5vw, 2rem);
  background: rgba(var(--bg-rgb), 0.55);
  border: 1px solid var(--fg-line);
  text-decoration: none;
  color: inherit;
  min-height: 240px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  overflow: hidden;
}

.venture-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 0;
  background: var(--accent);
  transition: height var(--transition);
}

a.venture-card:hover {
  border-color: var(--accent-line);
  background: rgba(var(--bg-rgb), 0.85);
  transform: translateY(-2px);
}

a.venture-card:hover::before { height: 100%; }

.venture-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.venture-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--fg-strong);
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--fg-line);
  border-radius: 999px;
  background: rgba(var(--bg-rgb), 0.6);
}

.venture-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--fg-soft);
}

.venture-status-live {
  color: var(--accent-2);
  border-color: rgba(249, 115, 22, 0.35);
  background: var(--accent-2-soft);
}

.venture-status-live::before {
  background: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.18);
}

.venture-status-stealth {
  color: var(--fg-muted);
}

.venture-sector {
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-soft);
  font-weight: 500;
}

.venture-name {
  font-size: clamp(1.4rem, 2vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin: 0.25rem 0 0;
  line-height: 1.1;
}

.venture-card-stealth .venture-name {
  color: var(--fg-soft);
  font-weight: 400;
  letter-spacing: 0.12em;
}

.venture-line {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--fg-muted);
  flex: 1;
}

.venture-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
  margin-top: 0.5rem;
}

.venture-cta svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

a.venture-card:hover .venture-cta svg {
  transform: translate(2px, -2px);
}

.venture-cta-muted {
  color: var(--fg-soft);
}

/* ─── Stealth visual (ventures page) ─────────────── */

.concept-visual-stealth {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    repeating-linear-gradient(45deg, rgba(var(--fg-rgb), 0.04) 0 2px, transparent 2px 14px),
    linear-gradient(135deg, rgba(var(--fg-rgb), 0.06), rgba(var(--fg-rgb), 0.02));
  border: 1px dashed var(--fg-line);
  display: flex;
  align-items: center;
  justify-content: center;
}

.concept-visual-stealth .stealth-mark {
  font-size: clamp(4rem, 8vw, 6rem);
  font-weight: 300;
  color: var(--fg-faint);
  letter-spacing: 0.4em;
  user-select: none;
}

/* ─── Founders card (ventures page secondary) ───── */

.founders-card {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--fg-line);
  background: rgba(var(--bg-rgb), 0.5);
  text-align: center;
}

.founders-eyebrow {
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-soft);
  font-weight: 600;
  margin-bottom: 0.9rem;
}

.founders-headline {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.founders-text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--fg-muted);
  max-width: 540px;
  margin: 0 auto 1.5rem;
}

.founders-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 1px solid var(--accent-line);
  padding-bottom: 0.35rem;
  transition: color var(--transition), border-color var(--transition), gap var(--transition);
}

.founders-link:hover {
  color: var(--accent-2);
  border-color: var(--accent-2);
  gap: 0.7rem;
}

.founders-link svg {
  width: 14px;
  height: 14px;
}

/* ─── Footer investor CTA ─────────────────────────── */

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.55rem 1rem 0.55rem 1.1rem;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: rgba(var(--bg-rgb), 0.6);
  transition: border-color var(--transition), background var(--transition);
}

.footer-cta:hover {
  border-color: var(--accent-2);
  background: rgba(var(--bg-rgb), 0.95);
}

.footer-cta-eyebrow {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--fg-muted);
}

.footer-cta-link {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-cta:hover .footer-cta-link {
  color: var(--accent-2);
}

/* ─── Responsive ──────────────────────────────────── */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .contact-layout {
    gap: 3.5rem;
  }

  .founder-block {
    grid-template-columns: 200px 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger { display: flex; }
  .mobile-menu { display: flex; }

  .services-grid,
  .method-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .services-grid {
    border-left: none;
    border-right: none;
  }

  .venture-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .venture-card {
    min-height: auto;
  }

  .method-grid {
    gap: 2.5rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.5rem 0;
  }

  .contact-meta {
    border-top: 1px solid var(--fg-line);
    padding-top: 2rem;
  }

  .method-grid::before {
    display: none;
  }

  .founder-block {
    grid-template-columns: 1fr;
    gap: 2rem;
    justify-items: center;
    text-align: center;
  }

  .founder-photo {
    max-width: 220px;
  }

  .founder-info .bio {
    margin-left: auto;
    margin-right: auto;
  }

  .line-accent {
    display: none;
  }

  .cta-card {
    padding: 2.25rem 1.5rem;
  }

  .concept-block,
  .concept-block.reverse {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .concept-block.reverse .concept-visual { order: 0; }
  .concept-block.reverse .concept-info { order: 1; }
}

@media (max-width: 480px) {
  :root { --nav-height: 60px; }

  .hero h1 { font-size: clamp(2rem, 9vw, 3rem); }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}