/* ═══════════════════════════════════════════
   T2SAIM — Design Tokens & Global Styles
   ═══════════════════════════════════════════ */
:root {
  --bg-deep: #0A0E14;
  --bg-section: #0F1318;
  --bg-card: #151A22;
  --text-primary: #E8EAED;
  --text-secondary: #9CA3AF;
  --accent-cyan: #7DD3FC;
  --accent-amber: #F59E0B;
  --accent-green: #10B981;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-display);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: var(--accent-cyan); text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .8; }

/* ═══ NAV ═══ */
#main-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10,14,20,.85);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(125,211,252,.08);
  transition: background .3s;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-size: 1.25rem; font-weight: 700; letter-spacing: .08em;
  color: var(--accent-cyan); text-decoration: none;
  display: flex; align-items: center; gap: .5rem;
}
.nav-logo-img { height: 36px; width: auto; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--text-secondary); font-size: .875rem; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--text-primary); opacity: 1; }
.nav-cta {
  background: rgba(125,211,252,.12); color: var(--accent-cyan) !important;
  padding: .5rem 1.25rem; border-radius: 6px;
  border: 1px solid rgba(125,211,252,.2);
  transition: background .2s, border-color .2s;
}
.nav-cta:hover { background: rgba(125,211,252,.2); border-color: rgba(125,211,252,.4); }
#mobile-menu-btn { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }

/* ═══ HERO — CASCADE MANIFESTO ═══ */
#hero {
  position: relative; width: 100%; min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  overflow: hidden; padding: 5rem 2rem 3rem;
}
#hero-canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0;
}

/* CASCADE CONTAINER */
.cascade-container {
  position: relative; z-index: 2;
  width: 100%; max-width: 960px;
  display: flex; flex-direction: column; gap: 1.2rem;
  padding: 2rem 0;
}

/* INDIVIDUAL CASCADE LINE */
.cascade-line {
  opacity: 0;
  transform: translateY(-60px);
  animation: cascadeDrop .8s cubic-bezier(.23,1,.32,1) forwards;
}
.cascade-line[data-delay="0"] { animation-delay: .3s; }
.cascade-line[data-delay="1"] { animation-delay: .9s; }
.cascade-line[data-delay="2"] { animation-delay: 1.5s; }
.cascade-line[data-delay="3"] { animation-delay: 2.1s; }
.cascade-line[data-delay="4"] { animation-delay: 2.6s; }
.cascade-line[data-delay="5"] { animation-delay: 3.2s; }
.cascade-line[data-delay="6"] { animation-delay: 3.8s; }

@keyframes cascadeDrop {
  0% { opacity: 0; transform: translateY(-60px); }
  60% { opacity: 1; transform: translateY(4px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* POSITIONING */
.cl-left { align-self: flex-start; text-align: left; padding-left: 2rem; }
.cl-right { align-self: flex-end; text-align: right; padding-right: 2rem; }
.cl-centre { align-self: center; text-align: center; }

/* TRIGGER (clickable text) */
.cl-trigger {
  cursor: pointer; display: inline-flex; align-items: center; gap: .75rem;
  transition: transform .3s;
}
.cl-trigger:hover { transform: scale(1.02); }
.cl-trigger:hover .cl-hint { opacity: 1; transform: translateX(4px); }

.cl-text {
  font-size: clamp(1.5rem, 3.5vw, 2.8rem); font-weight: 300;
  color: var(--text-primary); letter-spacing: -.02em;
  text-shadow: 0 0 40px rgba(10,14,20,.95), 0 0 80px rgba(10,14,20,.8), 0 2px 4px rgba(0,0,0,.9);
  transition: color .3s;
}
.cl-trigger:hover .cl-text { color: var(--accent-cyan); }

/* Lines 1-2 (fractal/truth) cyan accent */
.cl-left .cl-text { color: var(--text-primary); }
/* Line 3 (deception) amber accent on hover */
.cl-right .cl-trigger:hover .cl-text { color: var(--accent-amber); }

.cl-hint {
  font-size: 1.2rem; color: var(--accent-cyan); opacity: 0;
  transition: opacity .3s, transform .3s;
}

/* 3S BADGE */
.cl-badge {
  font-family: var(--font-mono); font-size: .7rem; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--accent-cyan); opacity: .5;
  border: 1px solid rgba(125,211,252,.25); border-radius: 4px;
  padding: .15rem .5rem; margin-left: .5rem;
  vertical-align: middle;
}
.cl-trigger:hover .cl-badge { opacity: 1; }

/* 3S · 3D SEAL */
.cl-seal { margin: .5rem 0; }
.cl-seal-text {
  font-family: var(--font-mono); font-size: clamp(.75rem, 1.2vw, .9rem);
  letter-spacing: .35em; text-transform: uppercase;
  color: var(--accent-cyan); opacity: .4;
  border: 1px solid rgba(125,211,252,.15); border-radius: 6px;
  padding: .3rem 1.2rem;
  display: inline-block;
}

/* EXPANDABLE PANEL */
.cl-panel {
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height .6s cubic-bezier(.4,0,.2,1), opacity .4s, padding .4s;
  background: rgba(15,19,24,.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(125,211,252,.1);
  border-radius: 12px; margin-top: .75rem;
  padding: 0 1.5rem;
}
.cl-panel.open {
  max-height: 600px; opacity: 1;
  padding: 1.5rem;
}
.cl-panel h4 {
  font-size: 1rem; font-weight: 600; color: var(--accent-cyan);
  margin-bottom: .75rem; letter-spacing: .02em;
}
.cl-panel p {
  font-size: .95rem; color: var(--text-secondary); line-height: 1.75;
  margin-bottom: 1rem; max-width: 380px; /* Optimized for single-fixation reading */
}
.cl-panel ul {
  list-style: none; padding: 0; margin: .75rem 0;
}
.cl-panel li {
  font-size: .85rem; color: var(--text-secondary); line-height: 1.65;
  padding: .4rem 0 .4rem 1.2rem; position: relative;
  border-bottom: 1px solid rgba(255,255,255,.03);
}
.cl-panel li::before {
  content: '◇'; position: absolute; left: 0; color: var(--accent-cyan); font-size: .7rem; top: .55rem;
}
.cl-panel li strong { color: var(--text-primary); }
.cl-source {
  font-size: .75rem; color: rgba(156,163,175,.5); font-style: italic;
  margin-top: .5rem; margin-bottom: 0;
}

/* 3D TAGLINE */
.cl-3d { margin: 1rem 0; }
.cl-tagline {
  display: flex; align-items: center; justify-content: center; gap: .75rem;
  perspective: 800px;
}
.cl-tag-word {
  font-family: var(--font-mono); font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--accent-cyan);
  text-shadow: 0 0 30px rgba(125,211,252,.4), 0 0 60px rgba(125,211,252,.15);
  animation: tag3D 4s ease-in-out infinite;
  display: inline-block;
}
.cl-tag-word:nth-child(1) { animation-delay: 0s; }
.cl-tag-word:nth-child(3) { animation-delay: .3s; }
.cl-tag-word:nth-child(5) { animation-delay: .6s; }

@keyframes tag3D {
  0%,100% { transform: perspective(800px) rotateX(0deg) translateZ(0); }
  25% { transform: perspective(800px) rotateX(5deg) translateZ(10px); }
  75% { transform: perspective(800px) rotateX(-3deg) translateZ(5px); }
}

.cl-tag-dot {
  font-size: 2rem; color: rgba(125,211,252,.3); font-weight: 300;
}

/* ANCHOR — "We are the Verity." */
.cl-anchor {
  display: flex; flex-direction: column; align-items: center; gap: .75rem;
  margin-top: 1.5rem;
}
.cl-anchor-logo {
  width: 80px; height: auto;
  filter: drop-shadow(0 0 20px rgba(125,211,252,.25));
  animation: emblemFloat 6s ease-in-out infinite;
}
@keyframes emblemFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.cl-anchor-text {
  font-family: var(--font-mono); font-size: clamp(.9rem, 1.5vw, 1.1rem);
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--text-primary); opacity: .8;
}

/* CTA BUTTONS AT BOTTOM */
.hero-ctas-bottom {
  position: relative; z-index: 2;
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  margin-top: 2rem;
  opacity: 0; animation: fadeInUp .6s ease forwards;
  animation-delay: 4.4s;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* BUTTONS */
.btn-primary {
  display: inline-block; padding: .75rem 2rem;
  background: var(--accent-cyan); color: var(--bg-deep);
  font-weight: 600; font-size: .9rem; border-radius: 6px;
  border: none; cursor: pointer; transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(125,211,252,.25); opacity: 1; color: var(--bg-deep); }
.btn-secondary {
  display: inline-block; padding: .75rem 2rem;
  background: transparent; color: var(--accent-cyan);
  font-weight: 500; font-size: .9rem; border-radius: 6px;
  border: 1px solid rgba(125,211,252,.3); cursor: pointer;
  transition: background .2s;
}
.btn-secondary:hover { background: rgba(125,211,252,.08); opacity: 1; }

.scroll-indicator {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  z-index: 2;
}
.scroll-indicator span { font-size: .75rem; color: var(--text-secondary); letter-spacing: .1em; text-transform: uppercase; }
.scroll-line {
  width: 1px; height: 40px; background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100% { opacity: .3; } 50% { opacity: 1; } }

/* ═══ CONTENT SECTIONS ═══ */
.content-section { padding: 6rem 2rem; }
.dark-section { background: var(--bg-section); }
.section-inner { max-width: 960px; margin: 0 auto; }
.reader-focus { max-width: 420px; margin: 0 auto; } /* Ercan's 8-10cm Rule: ~380-420px */
.manifesto-quote {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-style: italic; font-weight: 300;
  color: var(--accent-cyan); margin-bottom: 2rem;
  padding-left: 1.5rem; border-left: 3px solid rgba(125,211,252,.3);
  letter-spacing: .01em;
}
.section-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 300;
  margin-bottom: 1.5rem; letter-spacing: -.01em;
}
.section-inner p { color: var(--text-secondary); margin-bottom: 1rem; max-width: 720px; }
.section-sub { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 2rem; }
.mt-2 { margin-top: 3rem; }

/* METHOD CARDS */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin: 2rem 0 3rem; }
.method-card {
  background: var(--bg-card); border-radius: 12px; padding: 2rem;
  border: 1px solid rgba(125,211,252,.08);
  transition: border-color .3s, transform .3s;
}
.method-card:hover { border-color: rgba(125,211,252,.25); transform: translateY(-4px); }
.method-icon {
  font-family: var(--font-mono); font-size: 2rem; font-weight: 700;
  color: var(--accent-cyan); margin-bottom: 1rem; opacity: .6;
}
.method-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: .75rem; color: var(--text-primary); }
.method-card p { font-size: .9rem; color: var(--text-secondary); margin: 0; }

/* VERITAS TABLE */
.veritas-table { margin-top: 2rem; }
.veritas-table h3 { font-size: 1.1rem; font-weight: 500; margin-bottom: 1.25rem; color: var(--accent-cyan); }
.vt-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.vt-col {
  background: rgba(125,211,252,.04); border-radius: 8px; padding: 1.25rem;
  border-left: 3px solid transparent;
}
.vt-verified { border-left-color: var(--accent-green); }
.vt-assumed { border-left-color: var(--accent-amber); }
.vt-unverified { border-left-color: var(--text-secondary); }
.vt-label {
  font-family: var(--font-mono); font-size: .75rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .1em; display: block; margin-bottom: .5rem;
}
.vt-verified .vt-label { color: var(--accent-green); }
.vt-assumed .vt-label { color: var(--accent-amber); }
.vt-unverified .vt-label { color: var(--text-secondary); }
.vt-col p { font-size: .85rem; color: var(--text-secondary); margin: 0; }

/* APPLICATION CARDS */
.app-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; margin-top: 2rem; }
.app-card {
  position: relative; background: var(--bg-card); border-radius: 12px; overflow: hidden;
  border: 1px solid rgba(125,211,252,.06);
  transition: border-color .3s, transform .3s;
}
.app-card:hover { border-color: rgba(125,211,252,.2); transform: translateY(-4px); }
.app-canvas { width: 100%; height: 200px; display: block; }
.app-card-content { padding: 1.5rem; }
.app-card-content h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: .5rem; }
.app-card-content p { font-size: .85rem; color: var(--text-secondary); margin: 0; }

/* RESEARCH */
.research-card {
  background: var(--bg-card); border-radius: 12px; padding: 2rem;
  border: 1px solid rgba(125,211,252,.08); margin-bottom: 2rem;
}
.research-icon { font-size: 2rem; margin-bottom: 1rem; }
.research-card h3 { font-size: 1.15rem; margin-bottom: .75rem; }
.research-card p { font-size: .9rem; }
.ref-list { list-style: none; padding: 0; }
.ref-list li {
  padding: .5rem 0; border-bottom: 1px solid rgba(255,255,255,.05);
  color: var(--text-secondary); font-size: .9rem; padding-left: 1rem;
  position: relative;
}
.ref-list li::before { content: '→'; position: absolute; left: 0; color: var(--accent-cyan); }

/* FOUNDER */
.founder-block { display: grid; grid-template-columns: 200px 1fr; gap: 3rem; align-items: start; }
.founder-frame {
  width: 200px; height: 260px; background: var(--bg-card);
  border-radius: 12px; border: 1px solid rgba(125,211,252,.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; color: var(--accent-cyan); opacity: .4;
}
.founder-frame::after { content: 'TB'; font-family: var(--font-mono); font-weight: 700; }
.founder-text h3 { margin-top: 1.5rem; margin-bottom: .75rem; font-size: 1rem; color: var(--accent-cyan); }

/* COMPANY TABLE */
.company-table { border-collapse: collapse; margin: 1rem 0; }
.company-table td { padding: .5rem 1.5rem .5rem 0; border-bottom: 1px solid rgba(255,255,255,.05); color: var(--text-secondary); font-size: .9rem; }
.company-table td:first-child { color: var(--text-primary); font-weight: 500; }

/* CONTACT FORM */
.contact-form { max-width: 640px; margin-top: 2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: .85rem 1rem; background: var(--bg-card);
  border: 1px solid rgba(125,211,252,.1); border-radius: 8px;
  color: var(--text-primary); font-family: var(--font-display); font-size: .9rem;
  transition: border-color .2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--accent-cyan);
}
.contact-form textarea { margin-bottom: 1rem; resize: vertical; }
.checkbox-label { display: flex; align-items: flex-start; gap: .5rem; font-size: .8rem; color: var(--text-secondary); margin-bottom: 1.5rem; cursor: pointer; }
.checkbox-label input { margin-top: 3px; accent-color: var(--accent-cyan); }

/* FOOTER */
#site-footer { background: var(--bg-deep); border-top: 1px solid rgba(125,211,252,.06); padding: 3rem 2rem 2rem; }
.footer-inner { max-width: 960px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr 2fr; gap: 3rem; }
.footer-col h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-cyan); margin-bottom: 1rem; }
.footer-col a { display: block; color: var(--text-secondary); font-size: .85rem; margin-bottom: .4rem; }
.footer-legal { font-size: .8rem; color: var(--text-secondary); margin-bottom: .75rem; }
.footer-disclaimer { font-size: .75rem; color: rgba(156,163,175,.6); line-height: 1.5; }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  #mobile-menu-btn { display: block; }
  .two-col, .vt-grid, .app-grid { grid-template-columns: 1fr; }
  .founder-block { grid-template-columns: 1fr; }
  .founder-frame { margin: 0 auto; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .content-section { padding: 4rem 1.25rem; }
}