/* ==========================================================================
   THE TEXT COGNITION - ENTERPRISE DESIGN SYSTEM
   Dark Navy | Metallic Silver | Teal Glow
   ========================================================================== */

:root {
  --bg-primary: #070b14;
  --bg-secondary: #0d1527;
  --bg-card: rgba(13, 21, 39, 0.75);
  --bg-card-hover: rgba(22, 34, 61, 0.85);

  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-glow: rgba(56, 189, 248, 0.35);

  --text-primary: #f8fafc;
  --text-silver: #cbd5e1;
  --text-muted: #94a3b8;

  --accent-teal: #38bdf8;
  --accent-cyan: #06b6d4;
  --accent-glow: 0 0 24px rgba(56, 189, 248, 0.25);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --container-width: 1200px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-silver);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Atmosphere */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100vh;
  background: 
    radial-gradient(circle at 50% 8%, rgba(56, 189, 248, 0.08), transparent 45%),
    radial-gradient(circle at 80% 60%, rgba(6, 182, 212, 0.04), transparent 40%);
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

header.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  padding: 18px 0;
  transition: all 0.3s ease;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-logo span {
  color: var(--accent-teal);
}

nav.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

nav.nav-links a {
  color: var(--text-silver);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

nav.nav-links a:hover,
nav.nav-links a.active {
  color: var(--accent-teal);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition-smooth);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
  color: #04101e;
  box-shadow: var(--accent-glow);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 32px rgba(56, 189, 248, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* ==========================================================================
   HERO SECTION (HOME)
   ========================================================================== */

section.hero {
  padding: 180px 0 100px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 18px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid var(--border-glow);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent-teal);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 28px;
}

h1.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  max-width: 920px;
  margin: 0 auto 24px;
}

h1.hero-title .highlight {
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.65;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

/* ==========================================================================
   SECTION TYPOGRAPHY & TAGS
   ========================================================================== */

.section-tag {
  color: var(--accent-teal);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

h2.section-title {
  font-size: 2.25rem;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 60px;
}

.section-subtitle {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 1.05rem;
}

/* ==========================================================================
   PROBLEM SECTION
   ========================================================================== */

.section-dark {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}

.problem-content p {
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-top: 16px;
}

.problem-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.problem-quote-icon {
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 20px;
}

.problem-card .stat-label {
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-primary);
}

/* ==========================================================================
   TRANSFORMATION FLOW
   ========================================================================== */

section.pipeline {
  padding: 100px 0;
}

.transformation-flow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.flow-step {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  transition: all var(--transition-smooth);
}

.flow-step.highlight-step {
  border-color: var(--border-glow);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.12);
}

.flow-num {
  display: block;
  color: var(--accent-teal);
  font-weight: 800;
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 12px;
}

.flow-step h4 {
  color: var(--text-primary);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.flow-step p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.flow-arrow {
  color: var(--accent-teal);
  font-size: 1.8rem;
  user-select: none;
}

/* ==========================================================================
   ZERO DILUTION PHILOSOPHY
   ========================================================================== */

section.zero-dilution {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pillar-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-smooth);
}

.pillar-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.pillar-card h3 {
  color: var(--text-primary);
  margin-bottom: 14px;
  font-size: 1.25rem;
}

.pillar-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ==========================================================================
   REAL OUTPUT PRODUCT SHOWCASE
   ========================================================================== */

section.samples-teaser {
  padding: 100px 0;
  border-top: 1px solid var(--border-subtle);
}

.sample-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.sample-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  transition: all var(--transition-smooth);
}

.sample-box:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.step-num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent-teal);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.sample-box h4 {
  color: var(--text-primary);
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.sample-box p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

/* ==========================================================================
   48-HOUR DELIVERY
   ========================================================================== */

section.turnaround {
  padding: 90px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.turnaround-box {
  background: linear-gradient(135deg, rgba(13, 21, 39, 0.9), rgba(7, 11, 20, 0.95));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  box-shadow: var(--accent-glow);
}

.turnaround-info h2 {
  color: var(--text-primary);
  font-size: 1.85rem;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.turnaround-info p {
  color: var(--text-muted);
  max-width: 620px;
  font-size: 1.02rem;
  line-height: 1.6;
}

/* ==========================================================================
   ABOUT US PAGE SPECIFIC STYLES & EMBEDDED VIDEO
   ========================================================================== */

section.about-video-top {
  padding: 140px 0 20px;
}

.video-container-card {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 0 35px rgba(56, 189, 248, 0.15);
  backdrop-filter: blur(12px);
}

.video-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.video-tag {
  color: var(--accent-teal);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.video-title {
  color: var(--text-silver);
  font-size: 0.95rem;
  font-weight: 600;
}

.video-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000000;
}

.responsive-video {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  display: block;
}

section.about-hero {
  padding: 50px 0 60px;
  text-align: center;
}

.statement-pill {
  display: inline-block;
  margin-top: 10px;
  padding: 14px 28px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

section.about-visual-section {
  padding: 40px 0 60px;
}

/* Architecture Visualizer */
.transformation-diagram-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 44px 32px;
  backdrop-filter: blur(12px);
}

.diagram-stage {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  position: relative;
  transition: all var(--transition-smooth);
}

.diagram-stage.core-engine {
  border-color: var(--border-glow);
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.15);
  background: linear-gradient(180deg, rgba(13, 21, 39, 0.95), rgba(7, 11, 20, 0.95));
}

.stage-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
  color: #04101e;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.diagram-stage .stage-icon {
  font-size: 2.4rem;
  margin-bottom: 8px;
}

.diagram-stage .stage-tag {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent-teal);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.diagram-stage h3 {
  color: var(--text-primary);
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.diagram-stage p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.diagram-connector {
  font-size: 1.8rem;
  color: var(--accent-teal);
  user-select: none;
}

/* Narrative Grid */
section.about-narrative {
  padding: 40px 0 100px;
}

.narrative-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.narrative-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
}

.narrative-card h3 {
  font-size: 1.6rem;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.narrative-card p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.standards-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.standards-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

.standards-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-teal);
  font-size: 0.9rem;
}

.standards-list strong {
  color: var(--text-primary);
}

.about-footer-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
}

.mission-text {
  font-size: 1.15rem;
  color: var(--text-silver);
  max-width: 800px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.primary-tagline {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-teal);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.secondary-tagline {
  font-size: 1.05rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   FINAL CTA
   ========================================================================== */

section.final-cta {
  padding: 120px 0;
}

.cta-heading {
  font-size: 2.35rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.cta-subtext {
  color: var(--text-muted);
  font-size: 1.15rem;
  margin-bottom: 36px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

footer.site-footer {
  padding: 60px 0 30px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 40px;
  margin-bottom: 30px;
}

.footer-brand h4 {
  color: var(--text-primary);
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-silver);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-teal);
}

.footer-bottom {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   RESPONSIVE LAYOUT
   ========================================================================== */

@media (max-width: 900px) {
  nav.nav-links {
    display: none;
  }

  .problem-grid,
  .pillar-grid,
  .transformation-flow,
  .turnaround-box,
  .transformation-diagram-wrap,
  .narrative-grid {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .flow-arrow,
  .diagram-connector {
    transform: rotate(90deg);
    margin: 10px 0;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .turnaround-box,
  .about-footer-card {
    text-align: center;
    padding: 36px 24px;
  }

  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}

/* Centered Floating Play/Pause Button Overlay */
.video-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.center-video-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  background: rgba(7, 11, 20, 0.75);
  border: 2px solid var(--accent-teal);
  border-radius: 50%;
  color: var(--accent-teal);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-smooth);
  z-index: 10;
  outline: none;
}

.center-video-btn .play-icon {
  margin-left: 4px; /* Optically centers the play triangle */
}

.center-video-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  background: rgba(56, 189, 248, 0.2);
  box-shadow: 0 0 45px rgba(56, 189, 248, 0.7);
}

/* Hide play button when actively playing, show on hover or pause */
.video-wrapper.is-playing .center-video-btn {
  opacity: 0;
  pointer-events: none;
}

.video-wrapper.is-playing:hover .center-video-btn {
  opacity: 0.85;
  pointer-events: auto;
}