/* Root Variables */
:root {
  --bg:         #060e0d;
  --bg2:        #0b1714;
  --bg3:        #0f1f1b;
  --surface:    #132820;
  --surface2:   #1a3530;
  --border:     rgba(0, 255, 180, 0.12);
  --border2:    rgba(0, 255, 180, 0.22);

  --green:      #00c896;
  --teal:       #00e5c8;
  --cyan:       #00d4ff;
  --lime:       #a3ff6e;
  --white:      #f0faf8;
  --muted:      #7fb8a8;
  --dark-text:  #d6f0e8;

  --grad-main:  linear-gradient(135deg, #002e20 0%, #00594a 50%, #003c55 100%);
  --grad-glow:  radial-gradient(ellipse at 60% 40%, rgba(0,200,150,0.18) 0%, transparent 70%);
  --grad-card:  linear-gradient(160deg, #132820 0%, #0e2018 100%);
  --grad-accent:linear-gradient(90deg, var(--green), var(--cyan));

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --radius:   14px;
  --radius-sm:8px;
  --shadow:   0 4px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(0,200,150,0.18);

  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--dark-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green); border-radius: 99px; }

/* Container */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Sections */
.section {
  padding: 100px 0;
}
.section-dark {
  background: var(--bg2);
  position: relative;
}
.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-glow);
  pointer-events: none;
}
.section-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-label::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--grad-accent);
  border-radius: 2px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 60px;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(6,14,13,0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--teal);
  letter-spacing: -0.02em;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-cta {
  background: linear-gradient(90deg, var(--green), var(--teal)) !important;
  color: #000 !important;
  padding: 7px 18px;
  border-radius: 99px;
  font-weight: 700 !important;
  font-size: 0.8rem !important;
}
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/*
   HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
}
#windCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0,20,14,0.85) 0%,
    rgba(0,40,30,0.7) 50%,
    rgba(0,25,40,0.85) 100%
  );
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 24px 60px;
  max-width: 900px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}
.hero-badge span {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 5px 14px;
  border: 1px solid var(--border2);
  border-radius: 99px;
  color: var(--teal);
  background: rgba(0,200,150,0.06);
  backdrop-filter: blur(4px);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 4vw, 7rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--white);
  margin-bottom: 24px;
}
.hero-title em {
  font-style: normal;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 44px;
  font-weight: 300;
}
.hero-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  z-index: 2;
  animation: scrollBounce 2.5s ease-in-out infinite;
}
.hero-scroll-hint::after {
  content: ' ↓';
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 99px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  border: none;
}
.btn-outline {
  border: 1.5px solid var(--border2);
  color: var(--white);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  border-color: var(--green);
  color: var(--teal);
  background: rgba(0,200,150,0.08);
  transform: translateY(-2px);
}
.btn-solid {
  background: var(--grad-accent);
  color: #001a12;
  box-shadow: 0 0 24px rgba(0,200,150,0.3);
}
.btn-solid:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 32px rgba(0,200,150,0.45);
}
.btn-full { width: 100%; justify-content: center; }

/*
   OVERVIEW */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.overview-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.2;
}
.overview-text p {
  color: var(--muted);
  margin-bottom: 16px;
}
.overview-text strong { color: var(--teal); }
.overview-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-desc {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* PROBLEM */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.problem-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: all var(--transition);
}
.problem-card:hover {
  border-color: var(--green);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}
.problem-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.problem-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* PIPELINE */
.pipeline-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 15px; 
  margin-top: 40px;
}

.pipeline-step {
  flex: 1 1 280px;
  width: 320px;
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  position: relative;
  transition: all var(--transition);
  height: 240px;
  margin-bottom:20px;
}

.pipeline-step:hover {
  border-color: var(--teal);
  box-shadow: 0 0 20px rgba(0,229,200,0.12);
  transform: translateY(-4px);
}
.pipeline-step[data-step]::before {
  content: attr(data-step);
  position: absolute;
  top: -12px;
  left: 22px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--green);
  background: var(--bg2);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.pipeline-step .step-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}
.pipeline-step h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.pipeline-step p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}
.pipeline-arrow {
  font-size: 1.8rem;
  color: var(--green);
  opacity: 0.6;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

@media (max-width: 1024px) {
  .pipeline-steps {  flex-direction: column;
  }
  
  .pipeline-arrow {  transform: rotate(90deg); /* Turn arrows downward on mobile */  margin: 10px 0;
  }
}
.pipeline-arrow-down {
  grid-column: 4;
  grid-row: 1 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--green);
  opacity: 0.6;
  writing-mode: vertical-rl;
  height: 100%;
}
.pipeline-arrow-rev {
  transform: none;
}

/* MODELS */
.models-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.model-group {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.model-group-header {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(0,229,200,0.06);
  border-bottom: 1px solid var(--border);
  padding: 14px 22px;
}
.model-card {
  padding: 20px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 14px;
  align-items: flex-start;
  flex-wrap: wrap;
  transition: background var(--transition);
}
.model-card:last-child { border-bottom: none; }
.model-card:hover { background: rgba(0,200,150,0.04); }
.model-card strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--white);
  margin-bottom: 4px;
  width: 100%;
}
.model-card p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.55;
  width: 100%;
}
.model-tag {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.model-tag.stat   { background: rgba(163,255,110,0.12); color: var(--lime); border: 1px solid rgba(163,255,110,0.2); }
.model-tag.boost  { background: rgba(0,200,150,0.12); color: var(--green); border: 1px solid rgba(0,200,150,0.2); }
.model-tag.nn     { background: rgba(0,212,255,0.10); color: var(--cyan); border: 1px solid rgba(0,212,255,0.2); }
.model-tag.hybrid { background: rgba(0,229,200,0.10); color: var(--teal); border: 1px solid rgba(0,229,200,0.2); }
.model-tag.quantum{ background: rgba(100,100,255,0.12); color: #b0aaff; border: 1px solid rgba(100,100,255,0.25); }
.quantum-card { background: rgba(80,60,200,0.05); }
.quantum-badge {
  font-size: 0.7rem;
  font-weight: 700;
  color: #c0baff;
  background: rgba(100,100,255,0.1);
  border: 1px solid rgba(100,100,255,0.2);
  padding: 3px 10px;
  border-radius: 99px;
  margin-top: 6px;
}

/* RESULTS */
.results-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 36px;
}
.tab-btn {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 99px;
  border: 1.5px solid var(--border2);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--grad-accent);
  border-color: transparent;
  color: #001a12;
}
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.chart-full {
  grid-column: 1 / -1;
}
.chart-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.chart-card h3 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}
.chart-wrap {
  position: relative;
  height: 240px;
}
.chart-wrap-tall {
  height: 300px;
}
.insight-box {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: rgba(0,200,150,0.06);
  border: 1px solid rgba(0,200,150,0.2);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 28px;
}
.insight-icon { font-size: 2rem; flex-shrink: 0; }
.insight-box strong { color: var(--teal); }
.insight-box p, .insight-box div { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

/* DEMO */
.demo-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.demo-inputs, .demo-output {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.demo-inputs h3, .demo-output h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
}
.input-group {
  margin-bottom: 22px;
}
.input-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.input-group input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  outline: none;
}
.input-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(0,200,150,0.5);
}
.input-group select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--white);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
}
.range-val {
  display: block;
  text-align: right;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--teal);
  margin-top: 4px;
}
.output-main {
  text-align: center;
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.output-value {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
  transition: all 0.4s;
}
.output-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.output-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}
.meta-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}
.meta-item span { color: var(--muted); }
.meta-item strong { color: var(--white); }
.output-bar-wrap {
  height: 6px;
  background: var(--surface2);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 16px;
}
.output-bar {
  height: 100%;
  background: var(--grad-accent);
  border-radius: 99px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
  box-shadow: 0 0 10px rgba(0,200,150,0.5);
}
.demo-note {
  font-size: 0.72rem;
  color: rgba(127,184,168,0.55);
  text-align: center;
}

/* REPORT */
.report-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.report-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
}
.report-text p {
  color: var(--muted);
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.report-preview { display: flex; align-items: center; }
.report-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--grad-card);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  transition: all var(--transition);
}
.report-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-glow);
}
.report-icon { font-size: 2.5rem; flex-shrink: 0; }
.report-card div { display: flex; flex-direction: column; gap: 4px; }
.report-card strong { color: var(--white); font-weight: 700; font-size: 1rem; }
.report-card span { color: var(--muted); font-size: 0.85rem; }
.report-meta { font-size: 0.75rem !important; color: var(--green) !important; margin-top: 4px; }

/* CODE CARDS */
.code-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  max-width: 600px;
  margin: 0 auto;
}
.code-card {
  display: block;
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}
.code-card:hover {
  border-color: var(--teal);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.code-card-icon { font-size: 2rem; margin-bottom: 16px; }
.code-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.code-card p {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.code-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--teal);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* SKILLS */
.skills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.skill-pill {
  padding: 10px 20px;
  border: 1px solid var(--border2);
  border-radius: 99px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark-text);
  background: rgba(0,200,150,0.05);
  transition: all var(--transition);
}
.skill-pill:hover {
  background: rgba(0,200,150,0.12);
  border-color: var(--green);
  color: var(--white);
  transform: translateY(-2px);
}

/* CONCLUSION */
.conclusion-inner {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.conclusion-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 24px;
}
.conclusion-inner p {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.75;
}

/* FOOTER */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 0;
}
.footer-inner {
  text-align: center;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--teal);
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 24px;
}
.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: center;
  margin-bottom: 24px;
}
.footer-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--teal); }
.footer-copy {
  font-size: 0.78rem;
  color: rgba(127,184,168,0.4);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .problem-grid    { grid-template-columns: repeat(2, 1fr); }
  .models-grid     { grid-template-columns: 1fr; }
  .pipeline-steps  {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .pipeline-arrow, .pipeline-arrow-rev, .pipeline-arrow-down {
    writing-mode: horizontal-tb;
    transform: rotate(90deg);
  }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .overview-grid   { grid-template-columns: 1fr; gap: 40px; }
  .overview-stats  { grid-template-columns: repeat(2, 1fr); }
  .charts-grid     { grid-template-columns: 1fr; }
  .report-grid     { grid-template-columns: 1fr; gap: 32px; }
  .code-grid       { grid-template-columns: 1fr; }
  .demo-container  { grid-template-columns: 1fr; }
  .problem-grid    { grid-template-columns: 1fr; }

  .nav-links { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: rgba(6,14,13,0.98); padding: 20px 24px; gap: 16px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-burger { display: flex; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; align-items: center; }
  .overview-stats { grid-template-columns: repeat(2,1fr); }
}