/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0D0D0D;
  --surface: #161616;
  --surface-2: #1F1F1F;
  --fg: #F5F5F0;
  --fg-muted: #888;
  --accent: #BFFF00;
  --accent-dim: rgba(191, 255, 0, 0.12);
  --danger: #FF4D4D;
  --warn: #FFAA00;
  --good: #00E676;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.nav-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--fg-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-cta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid rgba(191, 255, 0, 0.3);
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  transition: all 0.2s;
  letter-spacing: 0.05em;
}

.nav-cta:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 8rem 4rem 6rem;
  max-width: 1400px;
  margin: 0 auto;
}

.hero-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 1.0;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.hero-sub {
  font-size: 1.05rem;
  color: #aaa;
  max-width: 440px;
  line-height: 1.7;
}

/* Hero Card */
.hero-card {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
}

.card-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.card-score {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 5rem;
  line-height: 1;
  color: var(--fg);
  margin-bottom: 1.25rem;
}

.card-finding {
  font-size: 0.875rem;
  color: #bbb;
  padding: 0.6rem 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.card-dot {
  width: 8px;
  height: 8px;
  min-width: 8px;
  border-radius: 50%;
  background: var(--good);
  margin-top: 0.35rem;
}

.card-dot.warn { background: var(--warn); }

.card-finding strong { color: var(--fg); }

.card-risk {
  margin-top: 1rem;
  background: rgba(255, 170, 0, 0.08);
  border: 1px solid rgba(255, 170, 0, 0.2);
  border-radius: 10px;
  padding: 0.875rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.risk-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--warn);
}

.risk-value {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.75rem;
  color: var(--warn);
}

.risk-note {
  font-size: 0.75rem;
  color: #999;
}

.card-fix {
  margin-top: 1rem;
  background: var(--accent-dim);
  border: 1px solid rgba(191, 255, 0, 0.15);
  border-radius: 10px;
  padding: 0.875rem 1rem;
}

.fix-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.35rem;
}

.card-fix p:last-child {
  font-size: 0.8rem;
  color: #bbb;
  line-height: 1.5;
}

/* === SECTIONS === */
.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin-bottom: 3rem;
}

/* === ANALYSIS === */
.analysis {
  padding: 6rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.analysis-header {
  margin-bottom: 4rem;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.analysis-item {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
}

.analysis-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 4rem;
  color: rgba(191, 255, 0, 0.15);
  line-height: 1;
  margin-bottom: 1rem;
}

.analysis-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.analysis-item p {
  font-size: 0.9rem;
  color: #888;
  line-height: 1.65;
}

/* === MECHANICS === */
.mechanics {
  padding: 6rem 4rem;
  background: var(--surface);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.mechanics-text .section-label,
.mechanics-text .section-title,
.mechanics-text .mechanics-body {
  max-width: none;
}

.mechanics-body {
  font-size: 0.95rem;
  color: #999;
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

/* Lift visual */
.mech-lift {
  background: var(--surface-2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 1.75rem;
}

.mech-lift-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.mech-rep {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.mech-rep:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.mech-rep-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #666;
  display: block;
  margin-bottom: 0.5rem;
}

.mech-bar {
  height: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.mech-bar-fill {
  height: 100%;
  width: 65%;
  background: var(--good);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.mech-bar-fill.warn { background: var(--warn); width: 80%; }

.mech-data { display: flex; flex-direction: column; gap: 0.2rem; }

.mech-metric {
  font-size: 0.75rem;
  color: #777;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mech-metric .good { color: var(--good); font-weight: 700; }
.mech-metric .warn { color: var(--warn); }
.mech-metric .bad { color: var(--danger); font-weight: 700; }

.mech-note {
  font-size: 0.7rem;
  color: #555;
  margin-top: 1rem;
  font-style: italic;
}

/* === PSYCHOLOGY === */
.psychology {
  padding: 6rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.psychology-header { margin-bottom: 3rem; }

.psychology-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.psych-card {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 1.75rem;
}

.psych-icon {
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.psych-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.psych-card p {
  font-size: 0.875rem;
  color: #888;
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.psych-note {
  font-size: 0.75rem;
  color: #555;
  font-style: italic;
}

/* === CLOSING === */
.closing {
  padding: 8rem 4rem;
  text-align: center;
}

.closing-inner { max-width: 700px; margin: 0 auto; }

.closing-label {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.closing-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}

.closing-body {
  font-size: 1.05rem;
  color: #888;
  line-height: 1.7;
}

/* === FOOTER === */
.footer {
  padding: 2rem 4rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.footer-copy {
  font-size: 0.8rem;
  color: #555;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 7rem 2rem 4rem;
    gap: 3rem;
  }

  .hero-sub { max-width: 100%; }

  .analysis-grid,
  .psychology-grid {
    grid-template-columns: 1fr;
  }

  .mechanics {
    grid-template-columns: 1fr;
    padding: 4rem 2rem;
    gap: 3rem;
  }

  .analysis,
  .psychology {
    padding: 4rem 2rem;
  }

  .closing { padding: 5rem 2rem; }

  .footer { padding: 2rem; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
}