:root {
  --body-bg: #050505;
  --body-text: #ffffff;
  --panel-bg: rgba(255, 255, 255, 0.02);
  --card-bg: #0a0c10;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-muted: rgba(255, 255, 255, 0.6);
  --text-card-p: rgba(255, 255, 255, 0.5);

  --accent-cyan: #00d1ff;
  --accent-cyan-glow: 0 15px 35px rgba(0, 209, 255, 0.35);
  --accent-purple: #a855f7;
  --accent-purple-glow: 0 15px 35px rgba(168, 85, 247, 0.35);

  --hero-bg: rgba(255, 255, 255, 0.02);
  --title-gradient: linear-gradient(135deg, #ffffff 30%, #00d1ff 100%);

  --nav-bg: rgba(10, 12, 16, 0.7);
  --nav-text: rgba(255, 255, 255, 0.5);
  --nav-hover-bg: rgba(0, 209, 255, 0.1);

  --vs-text-color: #ffffff;
  --vs-aura-bg: linear-gradient(135deg, #00d1ff 0%, #a855f7 50%, #ff007f 100%);
  --vs-aura-opacity: 0.55;
  --vs-drop-shadow: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
}

body.light {
  --body-bg: #f3f4f6;
  --body-text: #111827;
  --panel-bg: #ffffff;
  --card-bg: #ffffff;
  --border-color: rgba(0, 0, 0, 0.08);
  --text-muted: #4b5563;
  --text-card-p: #374151;

  --accent-cyan: #007799;
  --accent-cyan-glow: 0 15px 30px rgba(0, 119, 153, 0.2);
  --accent-purple: #7e22ce;
  --accent-purple-glow: 0 15px 30px rgba(126, 34, 206, 0.2);

  --hero-bg: #ffffff;
  --title-gradient: linear-gradient(135deg, #111827 30%, #007799 100%);

  --nav-bg: rgba(255, 255, 255, 0.8);
  --nav-text: #4b5563;
  --nav-hover-bg: rgba(0, 119, 153, 0.1);

  --vs-text-color: #111827;
  --vs-aura-bg: linear-gradient(135deg, rgba(0, 209, 255, 0.4) 0%, rgba(168, 85, 247, 0.4) 100%);
  --vs-aura-opacity: 0.35;
  --vs-drop-shadow: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.15));
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 110px;

  margin: 0;
  min-width: 320px;
  padding: 36px 20px 60px;

  overflow-x: hidden;

  background-color: var(--body-bg);
  color: var(--body-text);

  font-family: "Urbanist", sans-serif;

  transition:
    background 0.3s ease,
    color 0.3s ease;
}

.slide-frame {
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  scroll-margin-top: 80px;
}

/* ==========================================================================
3. TOP IDENTITY CONTROLS
========================================================================== */

.overview-section {
  width: 100%;
  max-width: 1180px;
}

.overview-controls {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  gap: 28px;

  width: 100%;
  margin: 0 auto 34px;
  padding: 14px 0 12px;

  background: transparent;
  border: 0;
  box-shadow: none;
}

.return-btn,
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;

  width: fit-content;
  min-height: 50px;
  padding: 12px 20px;

  border-radius: 999px;

  color: var(--body-text);
  font-size: 0.86rem;
  font-weight: 800;

  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);

  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    background 0.25s ease,
    box-shadow 0.25s ease;
}

.return-btn {
  justify-self: start;

  border: 1px solid rgba(34, 211, 238, 0.55);

  background:
    linear-gradient(135deg, rgba(34, 211, 238, 0.16), rgba(168, 85, 247, 0.13)),
    rgba(8, 10, 14, 0.82);

  box-shadow:
    0 14px 34px rgba(0, 0, 0, 0.34),
    0 0 24px rgba(34, 211, 238, 0.10);

  text-decoration: none;
}

.return-btn i {
  color: var(--accent-cyan);
  transition: transform 0.25s ease;
}

.return-btn:hover,
.return-btn:focus-visible {
  border-color: rgba(255, 255, 255, 0.65);

  background:
    linear-gradient(135deg, #0891b2, #7c3aed),
    rgba(8, 10, 14, 0.94);

  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.44),
    0 0 30px rgba(124, 58, 237, 0.28);

  color: #ffffff;
  outline: none;
  transform: translateY(-2px);
}

.return-btn:hover i {
  transform: translateX(-3px);
}

.outlier-header {
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;

  width: auto;
  margin: 0;
}

.main-logo {
  display: block;
  width: auto;
  max-width: 240px;
  height: auto;

  filter: drop-shadow(0 0 25px rgba(0, 209, 255, 0.20));

  transition: transform 0.4s ease;
}

.main-logo:hover {
  transform: scale(1.03);
}

.theme-btn {
  justify-self: end;

  margin: 0;

  border: 1px solid rgba(168, 85, 247, 0.50);

  background:
    linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(0, 209, 255, 0.10)),
    rgba(8, 10, 14, 0.82);

  box-shadow:
    0 14px 34px rgba(0, 0, 0, 0.34),
    0 0 24px rgba(168, 85, 247, 0.10);

  cursor: pointer;
}

.theme-btn:hover {
  border-color: rgba(255, 255, 255, 0.65);

  background:
    linear-gradient(135deg, #7c3aed, #0891b2),
    rgba(8, 10, 14, 0.94);

  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.44),
    0 0 30px rgba(34, 211, 238, 0.22);

  color: #ffffff;
  transform: translateY(-2px);
}


/* ==========================================================================
4. HORIZONTAL PAGE NAVIGATION
========================================================================== */

.top-navigation {
  position: relative;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;

  width: 100%;
  min-height: 64px;
  margin: 0 auto 64px;
  padding: 8px 10px 8px 20px;

  border: 1px solid var(--border-color);
  border-radius: 999px;

  background: var(--nav-bg);

  box-shadow: 0 16px 46px rgba(0, 0, 0, 0.26);

  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.top-nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;

  color: var(--body-text);

  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.top-nav-line {
  width: 18px;
  height: 3px;
  border-radius: 999px;
}

.top-nav-cyan {
  background: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(0, 209, 255, 0.55);
}

.top-nav-purple {
  background: var(--accent-purple);
  box-shadow: 0 0 14px rgba(168, 85, 247, 0.55);
}

.top-nav-links {
  display: flex;
  align-items: center;
  gap: 3px;

  margin: 0;
  padding: 0;

  list-style: none;
}

.top-nav-link {
  position: relative;

  display: block;
  padding: 12px 16px;

  border-radius: 999px;

  color: var(--nav-text);

  font-size: 0.82rem;
  font-weight: 800;
  text-decoration: none;

  transition:
    color 0.22s ease,
    background 0.22s ease;
}

.top-nav-link:hover,
.top-nav-link.active {
  background: var(--nav-hover-bg);
  color: var(--body-text);
}

.top-nav-link::after {
  position: absolute;
  right: 18px;
  bottom: 7px;
  left: 18px;

  height: 2px;

  border-radius: 999px;

  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));

  content: "";

  opacity: 0;
  transform: scaleX(0.45);

  transition:
    opacity 0.22s ease,
    transform 0.22s ease;
}

.top-nav-link:hover::after,
.top-nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.top-nav-toggle {
  display: none;

  width: 46px;
  height: 46px;
  padding: 0;

  border: 1px solid var(--border-color);
  border-radius: 50%;

  background: rgba(255, 255, 255, 0.04);

  cursor: pointer;
}

.top-nav-toggle span {
  display: block;

  width: 18px;
  height: 2px;
  margin: 4px auto;

  border-radius: 999px;

  background: var(--body-text);
}


/* ==========================================================================
5. OVERVIEW HERO
========================================================================== */

.outlier-tag {
  margin-bottom: 30px;
  padding: 8px 24px;

  border: 1px solid var(--accent-cyan);
  border-radius: 999px;

  background: rgba(0, 209, 255, 0.10);

  color: var(--accent-cyan);

  font-size: 12px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
}

#section-overview .unified-title {
  margin-bottom: 25px;

  font-size: clamp(46px, 5.6vw, 68px);
  line-height: 1.05;
}

.project-desc {
  max-width: 900px;
  margin-bottom: 50px;

  color: var(--text-muted);

  font-size: 21px;
  font-weight: 300;
  line-height: 1.6;
  text-align: center;
}


.outlier-tag {
  background: rgba(0, 209, 255, 0.1);
  padding: 8px 24px;
  border-radius: 50px;
  margin-bottom: 30px;
  border: 1px solid var(--accent-cyan);
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent-cyan);
  font-weight: 700;
}

.unified-title {
  font-size: clamp(34px, 6vw, 70px);
  font-weight: 800;
  margin-bottom: 25px;
  text-align: center;
  background: var(--title-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -2px;
  line-height: 1.1;
}

.project-desc {
  font-size: 21px;
  color: var(--text-muted);
  text-align: center;
  max-width: 900px;
  margin-bottom: 50px;
  font-weight: 300;
  line-height: 1.6;
}


.base-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 35px;
  padding: 45px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition:
    transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    box-shadow 0.4s ease,
    border-color 0.4s ease;
}
.base-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-cyan);
  box-shadow: var(--accent-cyan-glow);
}

.comparison-hero {
  width: 100%;
  max-width: 900px;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.brand-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  z-index: 2;
}
.brand-unit img {
  height: 80px;
  width: auto;
  border-radius: 12px;
}
.brand-unit span {
  font-size: 24px;
  font-weight: 700;
}


.vs-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 150px;
  height: 150px;
  z-index: 1;
}

.vs-container::before {
  content: "";
  position: absolute;
  width: 100px;
  height: 100px;
  background: var(--vs-aura-bg);
  filter: blur(35px);
  border-radius: 50%;
  opacity: var(--vs-aura-opacity);
  z-index: -1;
  transition: all 0.4s ease;
}

.vs-label {
  font-size: 48px;
  font-weight: 900;
  font-style: italic;
  color: var(--vs-text-color);
  filter: var(--vs-drop-shadow);
  letter-spacing: 1px;
  z-index: 2;
  transition: all 0.4s ease;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.label-cyan {
  font-size: 14px;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  letter-spacing: 5px;
  text-transform: uppercase;
  font-weight: 800;
}
.text-body {
  font-size: 21px;
  line-height: 1.6;
  color: var(--body-text);
  font-weight: 300;
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  width: 100%;
}

.eval-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  padding: 45px;
  transition:
    transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    box-shadow 0.4s ease,
    border-color 0.4s ease;
}
.eval-card:hover {
  transform: translateY(-6px);
}

.card-cyan:hover {
  border-color: #00d1ff;
  box-shadow: var(--accent-cyan-glow);
}
body.light .card-cyan:hover {
  border-color: #007799;
}

.card-purple:hover {
  border-color: #a855f7;
  box-shadow: var(--accent-purple-glow);
}
body.light .card-purple:hover {
  border-color: #7e22ce;
}

.eval-card h3 {
  font-size: 25px;
  margin-bottom: 15px;
  color: var(--body-text);
  font-weight: 700;
}
.eval-card p {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-card-p);
  font-weight: 400;
}


.conclusion-panel {
  background: radial-gradient(circle at center, rgba(0, 209, 255, 0.05) 0%, transparent 75%);
  border-radius: 50px;
  padding: 80px 60px;
  width: 100%;
  text-align: center;
  border: 1px solid var(--border-color);
  transition:
    transform 0.4s ease,
    box-shadow 0.4s ease;
}
.conclusion-panel:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--accent-cyan-glow);
}

.truth-statement {
  font-size: 26px;
  line-height: 1.7;
  color: var(--body-text);
  font-weight: 400;
  max-width: 950px;
  margin: 0 auto 30px auto;
}

.highlight {
  color: var(--accent-cyan);
  font-weight: 700;
}
.connection-text {
  font-size: 20px;
  color: var(--text-muted);
  margin-bottom: 45px;
  font-style: italic;
}
.protocol-box {
  display: inline-block;
  border-top: 2px solid var(--accent-cyan);
  padding-top: 20px;
}
.protocol-name {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: 10px;
  color: var(--body-text);
  text-shadow: 0 0 25px rgba(0, 209, 255, 0.4);
}


.main-footer {
  width: 100%;
  max-width: 1100px;
  padding: 40px 0;
  text-align: center;
}
.footer-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 209, 255, 0.3), transparent);
  margin-bottom: 30px;
}
.footer-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.copyright {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.signature {
  font-size: 12px;
  color: var(--accent-cyan);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
}

@media (max-width: 1200px) {
  body {
    padding: 40px 20px 40px 20px !important;
  }

}

@media (max-width: 900px) {
  .unified-title {
    font-size: 2.4rem !important;
    letter-spacing: -0.5px !important;
  }

  .grid-2 {
    grid-template-columns: 1fr !important;
    gap: 30px !important;
  }

  .grid-2 div:last-child {
    border-left: none !important;
    padding-left: 0 !important;
    border-top: 1px solid var(--border-color) !important;
    padding-top: 30px !important;
  }
}

@media (max-width: 600px) {
  body {
    gap: 50px !important;
    padding: 30px 12px !important;
  }
  .slide-frame {
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .comparison-hero {
    flex-direction: column !important;
    gap: 15px !important;
    padding: 25px 15px !important;
  }
  .brand-unit img {
    height: 50px !important;
  }
  .brand-unit span {
    font-size: 18px !important;
  }

  .vs-container {
    width: 70px !important;
    height: 70px !important;
    margin: 5px 0 !important;
  }
  .vs-container::before {
    width: 50px !important;
    height: 50px !important;
    filter: blur(20px) !important;
  }
  .vs-label {
    font-size: 28px !important;
  }

  .base-card,
  .eval-card {
    padding: 24px 16px !important;
    border-radius: 20px !important;
  }

  .text-body {
    font-size: 15px !important;
    line-height: 1.5 !important;
  }
  .label-cyan {
    font-size: 11px !important;
    margin-bottom: 10px !important;
    letter-spacing: 2px !important;
  }

  .output-grid {
    grid-template-columns: 1fr !important;
    gap: 15px !important;
  }
  .eval-card h3 {
    font-size: 19px !important;
    margin-bottom: 10px !important;
  }
  .eval-card p {
    font-size: 14px !important;
    line-height: 1.5 !important;
  }

  .conclusion-panel {
    padding: 40px 16px !important;
    border-radius: 24px !important;
  }
  .truth-statement {
    font-size: 17px !important;
    line-height: 1.6 !important;
  }
  .connection-text {
    font-size: 14px !important;
    margin-bottom: 30px !important;
  }
  .protocol-name {
    font-size: 2.6rem !important;
    letter-spacing: 4px !important;
  }



  .main-footer {
    padding: 20px 0 !important;
  }
  .copyright {
    font-size: 12px !important;
  }
  .signature {
    font-size: 10px !important;
    letter-spacing: 1px !important;
    line-height: 1.4 !important;
  }
}


.semantic-structure {
  display: contents;
}


#section-overview .unified-title {
  font-size: clamp(46px, 5.6vw, 68px);
  line-height: 1.05;
}
@media (max-width: 700px) {
  #section-overview .unified-title {
    font-size: clamp(32px, 10vw, 40px) !important;
  }
}


.semantic-structure {
  display: contents;
}


.chatgpt-label {
  color: #10a37f;
}

.gemini-label,
.protocol-introduction {
  color: #00d1ff;
}

.section-title {
  font-size: 44px;
}

.strategic-intent-column {
  padding-left: 40px;
  border-left: 1px solid var(--border-color);
}

.protocol-introduction {
  margin-bottom: 5px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
}

#site-footer {
  width: 100%;
  margin-top: 60px;
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  opacity: 0.6;
}

.footer-source-link {
  color: inherit;
  text-decoration: none;
}


@media (max-width: 600px) {


  .slide-frame:first-of-type { padding-top: 20px !important; }
  .unified-title {
    font-size: clamp(2rem, 9vw, 2.7rem) !important;
    line-height: 1.08 !important;
  }
}


@media (max-width: 600px) {




  .comparison-hero {
    flex-direction: row !important;
    justify-content: space-between !important;
    gap: 8px !important;
    padding: 20px 12px !important;
  }
  .brand-unit { gap: 8px !important; flex: 1 1 0; }
  .brand-unit img { height: 44px !important; }
  .brand-unit span { font-size: 14px !important; }
  .vs-container {
    flex: 0 0 52px !important;
    width: 52px !important;
    height: 52px !important;
    margin: 0 !important;
  }
  .vs-container::before {
    width: 42px !important;
    height: 42px !important;
  }
  .vs-label { font-size: 22px !important; }
}

/* ==========================================================================
11. RESPONSIVE LAYOUT
========================================================================== */

@media (max-width: 900px) {
  body {
    gap: 80px;
    padding: 28px 15px 50px;
  }

  .overview-controls {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 18px;
  }

  .return-btn,
  .outlier-header,
  .theme-btn {
    justify-self: center;
  }

  .top-navigation {
    padding: 7px 8px 7px 16px;
    border-radius: 24px;
  }

  .top-nav-toggle {
    display: block;
  }

  .top-nav-links {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: 0;
    z-index: 20;

    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;

    padding: 10px;

    border: 1px solid var(--border-color);
    border-radius: 22px;

    background: var(--card-bg);

    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.34);
  }

  .top-nav-links.open {
    display: flex;
  }

  .top-nav-link {
    padding: 14px 16px;
    text-align: center;
  }

  .top-nav-link::after {
    display: none;
  }

  .top-nav-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .top-nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .top-nav-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

@media (max-width: 600px) {
  body {
    gap: 54px;
    padding: 22px 12px 40px;
  }

  .overview-controls {
    margin-bottom: 24px;
    padding: 8px 0;
  }

  .return-btn,
  .theme-btn {
    min-height: 46px;
    padding: 10px 15px;
    font-size: 0.76rem;
  }

  .main-logo {
    max-width: 150px;
  }

  .top-navigation {
    margin-bottom: 44px;
  }

  .top-nav-brand {
    font-size: 0.66rem;
  }

  .top-nav-line {
    display: none;
  }

  #section-overview .unified-title {
    font-size: clamp(32px, 10vw, 40px);
  }

  .project-desc {
    margin-bottom: 34px;
    font-size: 16px;
  }

  .comparison-hero {
    flex-direction: row;
    justify-content: space-between;
    gap: 8px;
    padding: 20px 12px;
  }

  .brand-unit {
    flex: 1 1 0;
    gap: 8px;
  }

  .brand-unit img {
    height: 44px;
  }

  .brand-unit span {
    font-size: 14px;
  }

  .vs-container {
    flex: 0 0 52px;
    width: 52px;
    height: 52px;
    margin: 0;
  }

  .vs-container::before {
    width: 42px;
    height: 42px;
  }

  .vs-label {
    font-size: 22px;
  }
}

/* ==========================================================================
TOUCH DEVICES
Keep borders visible when hover is unavailable.
========================================================================== */

@media (hover: none) and (pointer: coarse) {

  .glass-panel,
  .project-card,
  .module-card,
  .feature-card,
  .article-card,
  .cert-card,
  .comparison-col,
  .phase-card,
  .visual,
  .feature-image,
  .page-return,
  .project-return,
  .back-btn,
  .back-link,
  .back-home-btn,
  .return-btn,
  .theme-btn,
  .nav-links a {
    border-color: rgba(255,255,255,.18) !important;
  }

}