/* ==========================================================================
   TradeSet.ai — Full-Width, Responsive & Atmospheric Blurred Background
   Modern Institutional Quant Aesthetics
   ========================================================================== */

:root {
  --bg: #090c10;
  --bg-card: rgba(15, 20, 28, 0.72);
  --bg-card-hover: rgba(22, 30, 42, 0.85);
  --bg-subtle: rgba(20, 26, 36, 0.6);
  
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(56, 189, 248, 0.5);

  --text-main: #f0f6fc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.12);
  --accent-emerald: #10b981;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container-max: 1360px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ==========================================================================
   Atmospheric Blurred Background Replay Chart
   ========================================================================== */
.ambient-chart-container {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1; /* Above body background */
  pointer-events: none;
  overflow: hidden;
}

.bg-chart-iframe {
  position: absolute;
  top: -5%;
  left: -5%;
  width: 110vw;
  height: 110vh;
  border: none;
  opacity: 0.62;
  filter: blur(4px) brightness(0.95) contrast(1.2);
  transform: scale(1.05);
  pointer-events: none;
  transition: filter 0.35s ease, opacity 0.35s ease;
}

/* Clear mode class when user toggles */
body.chart-sharp .bg-chart-iframe {
  filter: blur(0px) brightness(0.85);
  opacity: 0.85;
}

body.chart-sharp .ambient-chart-overlay {
  background: rgba(9, 12, 16, 0.35);
}

.ambient-chart-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(9, 12, 16, 0.45) 0%, rgba(9, 12, 16, 0.72) 55%, rgba(9, 12, 16, 0.94) 100%);
  pointer-events: none;
  transition: background 0.35s ease;
}

/* ==========================================================================
   All Content Layers (Z-Index: 10 above background)
   ========================================================================== */
main {
  position: relative;
  z-index: 10;
}

.container-fluid {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 56px);
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(9, 12, 16, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  padding: 16px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.02em;
}

.brand-logo-img {
  height: 24px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.4));
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.live-status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 5px 12px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.live-status-chip:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--accent-emerald);
}

.live-dot {
  width: 7px;
  height: 7px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.5; }
}

.contact-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-decoration: none;
  border: 1px solid rgba(56, 189, 248, 0.35);
  background: var(--accent-glow);
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
}

.contact-link:hover {
  border-color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.25);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.3);
  transform: translateY(-1px);
}

/* ==========================================================================
   Hero Section (Wide & Impactful)
   ========================================================================== */
.hero {
  padding: clamp(60px, 8vw, 100px) 0 clamp(40px, 5vw, 60px) 0;
  border-bottom: 1px solid var(--border);
}

.hero-content {
  max-width: 980px;
}

.tag-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: inline-block;
  margin-bottom: 16px;
  background: rgba(56, 189, 248, 0.1);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 4.8vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}

h1 span {
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: clamp(1.1rem, 1.8vw, 1.25rem);
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 24px;
  max-width: 900px;
}

.thesis-callout {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-cyan);
  padding: 16px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1.05rem;
  color: #e2e8f0;
  backdrop-filter: blur(12px);
  margin-bottom: 36px;
  max-width: 900px;
}

.thesis-callout strong {
  color: var(--accent-cyan);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  color: #090c10;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: #f1f5f9;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 255, 255, 0.25);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  color: #cbd5e1;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  color: #fff;
  border-color: var(--accent-cyan);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

/* ==========================================================================
   Full-Width Visual Workflow
   ========================================================================== */
.workflow-section {
  padding: clamp(36px, 5vw, 56px) 0;
  border-bottom: 1px solid var(--border);
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  display: block;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.workflow-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  position: relative;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.workflow-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4), 0 0 16px rgba(56, 189, 248, 0.12);
}

.node-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.node-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.node-step-title {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.node-step-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   The Problem (Responsive Grid)
   ========================================================================== */
.content-section {
  padding: clamp(48px, 6vw, 72px) 0;
  border-bottom: 1px solid var(--border);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 820px;
  margin-bottom: 28px;
  line-height: 1.65;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.problem-card:hover {
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.problem-idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  font-weight: 600;
  flex-shrink: 0;
}

.problem-text {
  font-size: 0.95rem;
  color: #f1f5f9;
  font-weight: 500;
}

/* ==========================================================================
   Core Capabilities (Full-Width 4-Column Layout)
   ========================================================================== */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.cap-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}

.cap-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.cap-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Strategy Intelligence Pipeline (Full-Width Track)
   ========================================================================== */
.pipeline-flow-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}

.pipeline-node-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 14px;
  backdrop-filter: blur(12px);
  text-align: center;
  transition: all 0.2s ease;
}

.pipeline-node-box:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.pipe-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  margin-bottom: 6px;
  font-weight: 700;
}

.pipe-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
}

.pipe-sub {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* ==========================================================================
   Manifesto & Contact / Closing
   ========================================================================== */
.manifesto-section {
  padding: clamp(60px, 8vw, 100px) 0 40px 0;
  text-align: center;
}

.manifesto-wrapper {
  max-width: 860px;
  margin: 0 auto;
}

.manifesto-quote {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.2vw, 2.2rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.manifesto-quote span {
  color: var(--accent-cyan);
}

.manifesto-text {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-action-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  position: relative;
  z-index: 10;
  margin-top: 60px;
  padding: 24px 0 40px 0;
  border-top: 1px solid var(--border);
  background: rgba(9, 12, 16, 0.88);
  backdrop-filter: blur(12px);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  height: 18px;
  width: auto;
  opacity: 0.8;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.84rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-social-link:hover {
  color: var(--accent-cyan);
  transform: translateY(-1px);
}

.footer-social-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1200px) {
  .pipeline-flow-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

@media (max-width: 768px) {
  .header-right .live-status-chip {
    display: none;
  }
  .workflow-grid {
    grid-template-columns: 1fr;
  }
  .capabilities-grid {
    grid-template-columns: 1fr;
  }
  .problem-grid {
    grid-template-columns: 1fr;
  }
  .pipeline-flow-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}