/* ============================================================
   OBSERVER STUDIOS — style.css
   Theme: Version B — True Black / Electric Cyan
   Type: Space Grotesk / Inter / JetBrains Mono
   ============================================================ */

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

:root {
  --bg:          #010308;
  --card:        #060D1A;
  --card-hover:  #0A1525;
  --accent:      #38BDF8;
  --accent-hi:   #7DD3FC;
  --rim:         rgba(56,189,248,0.13);
  --rim-hover:   rgba(56,189,248,0.48);
  --glow-rgb:    56,189,248;
  --text:        #A8C8E0;
  --text-dim:    #3A5A72;
  --white:       #EEF6FF;
  --gold:        #C8A84B;

  --fd: 'Space Grotesk', system-ui, sans-serif;
  --fb: 'Inter', system-ui, sans-serif;
  --fm: 'JetBrains Mono', 'Courier New', monospace;

  --r:      12px;
  --nav-h:  64px;
  --ease:   0.28s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--fb);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Vignette — peering through a viewport */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse at 50% 38%, transparent 25%, rgba(1,3,8,0.82) 100%);
}

a { color: inherit; text-decoration: none; }

.mono {
  font-family: var(--fm);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}

/* ---------- STARFIELD ---------- */
#starfield {
  position: fixed; inset: 0;
  z-index: 0; pointer-events: none; opacity: 1;
}

/* ---------- SCAN LINE ---------- */
.scan-line {
  position: fixed; top: 0; left: 0; width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--accent-hi) 40%, var(--accent-hi) 60%, transparent 100%);
  z-index: 100; opacity: 0; pointer-events: none;
  box-shadow: 0 0 20px var(--accent-hi), 0 0 60px rgba(var(--glow-rgb),0.3);
}
.scan-line.go { animation: scanSweep 1.3s cubic-bezier(0.4,0,0.6,1) forwards; }
@keyframes scanSweep {
  0%   { top:0%;    opacity:0; }
  5%   { opacity:1; }
  95%  { opacity:1; }
  100% { top:100%;  opacity:0; }
}

/* ---------- NAV ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; z-index: 90;
  background: rgba(1,3,8,0);
  border-bottom: 1px solid transparent;
  transition: background var(--ease), border-color var(--ease);
}
.nav.scrolled {
  background: rgba(1,3,8,0.93);
  border-bottom-color: var(--rim);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav-wordmark {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--fd); font-size: 1rem; font-weight: 500;
  color: var(--white); letter-spacing: 0.02em;
}
.nav-mark { color: var(--accent-hi); font-size: 1.25rem; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.875rem; color: var(--text-dim);
  transition: color var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-hamburger span { display: block; width: 22px; height: 1.5px; background: var(--text); }

/* ---------- MOBILE MENU ---------- */
.mobile-menu {
  position: fixed; inset: 0;
  background: rgba(1,3,8,0.97);
  z-index: 200;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 32px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.22s ease;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-close {
  position: absolute; top: 20px; right: 24px;
  background: none; border: none; color: var(--text-dim);
  font-size: 1.4rem; cursor: pointer; transition: color var(--ease);
}
.mobile-close:hover { color: var(--white); }
.mobile-nav-links { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.mobile-nav-links a {
  font-family: var(--fd); font-size: 1.6rem; font-weight: 300;
  color: var(--text); letter-spacing: 0.02em; transition: color var(--ease);
}
.mobile-nav-links a:hover { color: var(--white); }

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  padding: calc(var(--nav-h) + 40px) 40px 100px; z-index: 1;
}
.hero-inner { max-width: 860px; width: 100%; text-align: center; }

.hero-eyebrow {
  display: flex; align-items: center; justify-content: center;
  gap: 14px; margin-bottom: 36px;
  opacity: 0; transform: translateY(10px);
  animation: fadeUp 0.7s ease 0.2s forwards;
}
.hero-eyebrow .dim { color: var(--text-dim); }

.hero-headline {
  font-family: var(--fd);
  font-size: clamp(3.2rem, 8vw, 6.5rem);
  font-weight: 300; color: var(--white);
  line-height: 1.04; letter-spacing: -0.025em;
  margin-bottom: 28px;
  opacity: 0; transform: translateY(18px);
  animation: fadeUp 0.85s ease 0.42s forwards;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text); line-height: 1.75;
  max-width: 540px; margin: 0 auto 44px; font-weight: 300;
  opacity: 0; transform: translateY(12px);
  animation: fadeUp 0.7s ease 0.65s forwards;
}
.hero-cta {
  display: flex; align-items: center; justify-content: center;
  gap: 16px; flex-wrap: wrap;
  opacity: 0; transform: translateY(10px);
  animation: fadeUp 0.7s ease 0.85s forwards;
}
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  opacity: 0; animation: fadeInHalf 0.6s ease 1.4s forwards;
}
.scroll-bar {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.3} 50%{opacity:.9} }

/* ---------- BUTTONS ---------- */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px;
  background: var(--accent); color: var(--bg);
  border-radius: var(--r); border: none; cursor: pointer;
  font-family: var(--fb); font-size: 0.88rem; font-weight: 600;
  letter-spacing: 0.02em;
  transition: background var(--ease), box-shadow var(--ease), transform 0.15s ease;
}
.btn-primary:hover {
  background: var(--accent-hi);
  box-shadow: 0 0 32px rgba(var(--glow-rgb),0.45);
  transform: translateY(-1px);
}
.btn-ghost {
  display: inline-flex; align-items: center;
  padding: 13px 28px;
  border: 1px solid var(--rim); color: var(--text);
  border-radius: var(--r);
  font-family: var(--fb); font-size: 0.88rem; font-weight: 400;
  transition: border-color var(--ease), color var(--ease);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--white); }

/* ---------- PILLARS ---------- */
.pillars {
  position: relative; z-index: 1;
  padding: 100px 48px 120px;
  max-width: 1200px; margin: 0 auto;
}
.section-header {
  margin-bottom: 52px;
  display: flex; align-items: baseline; justify-content: space-between;
  border-bottom: 1px solid var(--rim); padding-bottom: 20px;
}
.section-note { color: var(--text-dim); }
.pillar-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }

/* ---------- CARDS ---------- */
.pillar-card {
  border-radius: var(--r); overflow: hidden;
  opacity: 1; transform: translateY(0);
  clip-path: inset(0% 0 0 0);
  transition: opacity 0.6s ease, transform 0.6s ease,
              clip-path 0.75s cubic-bezier(0.4,0,0.2,1);
}
.pillar-card.vis { opacity:1; transform:translateY(0); clip-path:inset(0% 0 0 0); }
.pillar-card:nth-child(1){transition-delay:0s}
.pillar-card:nth-child(2){transition-delay:.1s}
.pillar-card:nth-child(3){transition-delay:.2s}
.pillar-card:nth-child(4){transition-delay:.3s}

.card-inner {
  position: relative;
  background: var(--card); border: 1px solid var(--rim);
  border-radius: var(--r); padding: 32px;
  height: 100%; display: flex; flex-direction: column; gap: 20px;
  transition: background var(--ease), border-color var(--ease),
              box-shadow var(--ease), transform 0.2s ease;
  overflow: hidden;
}
/* Static corner light — always visible at rest */
.card-inner::before {
  content: '';
  position: absolute; top: -80px; right: -80px;
  width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--glow-rgb),.09) 0%, transparent 68%);
  pointer-events: none;
  transition: background var(--ease);
}
.card-inner:hover {
  background: var(--card-hover);
  border-color: var(--rim-hover);
  box-shadow: 0 0 48px rgba(var(--glow-rgb),.1),
              inset 0 0 80px rgba(var(--glow-rgb),.04);
  transform: translateY(-4px);
}
/* Corner light brightens on hover */
.card-inner:hover::before {
  background: radial-gradient(circle, rgba(var(--glow-rgb),.22) 0%, transparent 68%);
}
.card-inner:hover .card-glow { opacity: 1; }
/* Secondary bottom-left accent — only on hover */
.card-glow {
  position: absolute; bottom: -60px; left: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--glow-rgb),.07) 0%, transparent 70%);
  pointer-events: none; opacity: 0; transition: opacity 0.5s ease;
}
.card-top { display: flex; align-items: center; justify-content: space-between; }
.card-index { font-family: var(--fm); font-size: 0.65rem; letter-spacing: 0.15em; color: var(--accent); }
.card-tag   { font-family: var(--fm); font-size: 0.6rem;  letter-spacing: 0.15em; color: var(--text-dim); }
.card-body  { flex: 1; }
.card-title {
  font-family: var(--fd); font-size: 1.85rem; font-weight: 400; color: var(--white);
  letter-spacing: -0.01em; margin-bottom: 12px; line-height: 1.1;
}
.card-desc { font-size: 0.88rem; color: var(--text); line-height: 1.7; font-weight: 300; }
.card-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 18px; border-top: 1px solid var(--rim);
}
.card-meta { font-family: var(--fm); font-size: 0.65rem; letter-spacing: 0.1em; color: var(--text-dim); }
.card-link {
  font-size: 0.85rem; font-weight: 500; color: var(--accent-hi);
  letter-spacing: 0.04em; display: inline-flex; align-items: center; gap: 6px;
  transition: color var(--ease), gap var(--ease);
}
.card-link:hover { color: var(--white); gap: 10px; }

/* ---------- PHILOSOPHY ---------- */
.philosophy {
  position: relative; z-index: 1;
  padding: 80px 48px;
  border-top: 1px solid var(--rim); border-bottom: 1px solid var(--rim);
  background: rgba(1,3,8,0.5);
}
.philosophy-inner { max-width: 680px; margin: 0 auto; text-align: center; }
.philosophy-quote p {
  font-family: var(--fd);
  font-size: clamp(1.1rem,2.5vw,1.4rem);
  font-weight: 300; color: var(--white); line-height: 1.75; letter-spacing: -0.01em;
}
.philosophy-line { width: 1px; height: 32px; background: var(--rim); margin: 24px auto; }
.philosophy-byline { color: var(--text-dim); }

/* ---------- SIGNAL BAND ---------- */
.signal-band {
  position: relative; z-index: 1;
  padding: 80px 48px; max-width: 1200px; margin: 0 auto;
}
.signal-inner {
  display: grid; grid-template-columns: 1fr auto;
  gap: 60px; align-items: center;
  background: var(--card); border: 1px solid var(--rim);
  border-radius: 16px; padding: 52px 56px;
  position: relative; overflow: hidden;
}
.signal-inner::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(135deg, rgba(var(--glow-rgb),.07) 0%, transparent 55%);
}
.signal-label { display: block; margin-bottom: 18px; }
.signal-title {
  font-family: var(--fd);
  font-size: clamp(1.3rem,3vw,1.85rem); font-weight: 400; color: var(--white);
  margin-bottom: 14px; letter-spacing: -0.01em; line-height: 1.2;
}
.signal-body {
  font-size: 0.92rem; color: var(--text); line-height: 1.7;
  max-width: 480px; margin-bottom: 28px; font-weight: 300;
}
.signal-pulse {
  position: relative; width: 80px; height: 80px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.pulse-ring {
  position: absolute; border-radius: 50%;
  border: 1px solid var(--accent);
  animation: pulseExpand 3s ease-out infinite;
  width: 80px; height: 80px;
}
.r2{animation-delay:1s} .r3{animation-delay:2s}
@keyframes pulseExpand { 0%{transform:scale(.4);opacity:1} 100%{transform:scale(3);opacity:0} }
.pulse-core {
  font-size: 1.5rem; color: var(--accent-hi); z-index: 1;
  animation: coreGlow 3s ease-in-out infinite;
}
@keyframes coreGlow {
  0%,100%{text-shadow:0 0 6px rgba(var(--glow-rgb),.4)}
  50%{text-shadow:0 0 22px rgba(var(--glow-rgb),.95),0 0 44px rgba(var(--glow-rgb),.4)}
}

/* ---------- FUND THE RESEARCH ---------- */
.fund {
  position: relative; z-index: 1;
  padding: 0 48px 80px; max-width: 1200px; margin: 0 auto;
}
.fund-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px;
  background: var(--card); border: 1px solid var(--rim);
  border-radius: var(--r); padding: 36px 44px;
  position: relative; overflow: hidden;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.fund-inner:hover {
  border-color: rgba(var(--glow-rgb),.28);
  box-shadow: 0 0 40px rgba(var(--glow-rgb),.06);
}
.fund-inner::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(135deg, rgba(200,168,75,0.04) 0%, transparent 60%);
}
.fund-left { flex: 1; }
.fund-title {
  font-family: var(--fd); font-size: 1.3rem; font-weight: 500;
  color: var(--white); margin-bottom: 12px; letter-spacing: -0.01em;
}
.fund-body {
  font-family: var(--fm); font-size: 0.8rem; line-height: 1.75;
  color: var(--text-dim); font-weight: 300; max-width: 520px;
}
.fund-body strong { color: var(--text); font-weight: 400; }
.btn-fund {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 26px; flex-shrink: 0;
  background: rgba(200,168,75,0.1);
  border: 1px solid rgba(200,168,75,0.35);
  color: #C8A84B; border-radius: var(--r);
  font-family: var(--fb); font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.02em;
  transition: background var(--ease), border-color var(--ease),
              color var(--ease), transform 0.15s ease, box-shadow var(--ease);
}
.btn-fund:hover {
  background: rgba(200,168,75,0.18);
  border-color: rgba(200,168,75,0.7);
  color: #E0C060;
  transform: translateY(-1px);
  box-shadow: 0 0 24px rgba(200,168,75,0.2);
}
.btn-fund-icon { font-size: 1rem; }

/* ---------- FOOTER ---------- */
.footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--rim); padding: 44px 48px;
  background: rgba(1,3,8,0.8);
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.footer-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--fd); font-size: 0.9rem; font-weight: 500; color: var(--text);
}
.footer-mark { color: var(--accent-hi); font-size: 1.1rem; }
.footer-links { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 0.78rem; color: var(--text-dim); transition: color var(--ease); }
.footer-links a:hover { color: var(--accent-hi); }
.footer-copy { font-family: var(--fm); font-size: 0.62rem; color: var(--text-dim); }

/* ---------- ABOUT PAGE ---------- */
.page-main {
  position: relative; z-index: 1;
  padding: calc(var(--nav-h) + 60px) 48px 100px;
  max-width: 760px; margin: 0 auto;
}
.page-hero { margin-bottom: 60px; padding-bottom: 40px; border-bottom: 1px solid var(--rim); }
.page-eyebrow { display: block; margin-bottom: 20px; }
.page-title {
  font-family: var(--fd);
  font-size: clamp(2rem,5vw,3.4rem); font-weight: 300; color: var(--white);
  letter-spacing: -0.02em; line-height: 1.1;
}
.page-content { display: flex; flex-direction: column; gap: 60px; }
.about-block p { font-size: 1rem; color: var(--text); line-height: 1.8; font-weight: 300; margin-bottom: 18px; }
.about-lead {
  font-family: var(--fd); font-size: 1.25rem !important;
  color: var(--white) !important; font-weight: 400 !important;
  letter-spacing: -0.01em; line-height: 1.6 !important;
}
.about-section-title { margin-bottom: 40px; }
.about-project-row {
  display: grid; grid-template-columns: 48px 1fr;
  gap: 28px; padding: 32px 0; border-bottom: 1px solid var(--rim);
}
.about-project-index { font-family: var(--fm); font-size: 0.65rem; letter-spacing: 0.12em; color: var(--text-dim); padding-top: 4px; }
.about-project-content h3 { font-family: var(--fd); font-size: 1.15rem; font-weight: 500; color: var(--white); margin-bottom: 10px; }
.about-project-content h3 a { color: var(--white); transition: color var(--ease); }
.about-project-content h3 a:hover { color: var(--accent-hi); }
.about-project-content p { font-size: 0.9rem; color: var(--text); line-height: 1.7; margin-bottom: 14px; }
.project-go { font-family: var(--fm); font-size: 0.68rem !important; letter-spacing: 0.1em; color: var(--accent) !important; transition: color var(--ease); }
.project-go:hover { color: var(--accent-hi) !important; }
.about-closing { margin-top: 20px; }

/* ---------- 404 ---------- */
.not-found {
  min-height: 100svh; display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 1; padding: 40px; text-align: center;
}
.not-found-inner { max-width: 480px; }

/* ---------- ANIMATIONS ---------- */
@keyframes fadeUp     { to { opacity:1; transform:translateY(0); } }
@keyframes fadeInHalf { to { opacity:0.5; } }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding: 120px 24px 80px; }
  .hero-cta { flex-direction: column; align-items: center; }

  .pillars { padding: 80px 24px 100px; }
  .section-header { flex-direction: column; gap: 8px; }
  .pillar-grid { grid-template-columns: 1fr; }

  .philosophy { padding: 60px 24px; }

  .signal-band { padding: 60px 24px; }
  .signal-inner { grid-template-columns: 1fr; padding: 36px 28px; gap: 0; }
  .signal-pulse { display: none; }

  .fund { padding: 0 24px 60px; }
  .fund-inner { flex-direction: column; align-items: flex-start; padding: 28px 24px; gap: 24px; }

  .footer { padding: 36px 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { gap: 16px; }

  .page-main { padding: 120px 24px 80px; }
  .about-project-row { grid-template-columns: 1fr; gap: 8px; }
  .about-project-index { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .scan-line { display: none; }
  .hero-eyebrow, .hero-headline, .hero-sub, .hero-cta, .hero-scroll {
    opacity: 1; transform: none; animation: none;
  }
}

/* ---------- KIT SIGNUP FORM (dark theme override) ---------- */
.ck-signup { width: 100%; }
.ck-signup .formkit-form[data-uid="b6b900133b"] {
  max-width: 100% !important;
  background: transparent !important;
  padding: 0 !important;
  margin: 0 !important;
}
.ck-signup .formkit-fields { display: flex; flex-direction: row; gap: 12px; align-items: stretch; flex-wrap: wrap; }
.ck-signup .formkit-field { flex: 1 1 260px; margin: 0 !important; }
.ck-signup .formkit-input {
  background: rgba(255,255,255,0.04) !important;
  border: 1px solid var(--rim) !important;
  color: var(--white) !important;
  border-radius: 8px !important;
  padding: 14px 16px !important;
  font-family: var(--fb);
  font-size: 0.95rem;
}
.ck-signup .formkit-input::placeholder { color: var(--text-dim) !important; opacity: 1; }
.ck-signup .formkit-input:focus { border-color: var(--rim-hover) !important; }
.ck-signup .formkit-submit {
  background: var(--accent) !important;
  border-radius: 8px !important;
  margin: 0 !important;
  flex: 0 0 auto;
}
.ck-signup .formkit-submit > span {
  color: var(--bg) !important;
  font-family: var(--fb); font-weight: 600 !important;
  padding: 14px 26px !important;
}
.ck-signup .formkit-alert-error {
  background: rgba(242,100,59,0.08) !important;
  border-color: rgba(242,100,59,0.3) !important;
  color: #f2643b !important;
}
.ck-signup .formkit-powered-by-convertkit-container { margin: 14px 0 0 !important; justify-content: flex-start; }
.ck-signup .formkit-powered-by-convertkit { opacity: 0.5 !important; }
@media (max-width: 560px) {
  .ck-signup .formkit-fields { flex-direction: column; }
  .ck-signup .formkit-submit { width: 100%; }
}