:root {
  --black: #0a0a0a;
  --white: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-800: #262626;
  --accent: #c23d2a;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'Menlo', 'Monaco', monospace;
}

/* NAV */
.sm-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(250,250,250,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.sm-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--black);
}
.sm-logo-mark { width: 28px; height: 28px; }
.sm-logo-type {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.sm-logo-type .soft { font-style: italic; }
.sm-logo-type .machine { font-weight: 700; font-style: normal; letter-spacing: 0.01em; }
.sm-nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
  margin: 0;
  padding: 0;
}
.sm-nav-links a {
  text-decoration: none;
  color: var(--gray-600);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.sm-nav-links a:hover { color: var(--black); }
.sm-nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 4px;
  font-size: 12px !important;
  letter-spacing: 0.06em !important;
  text-transform: uppercase;
}
.sm-nav-cta:hover { background: var(--gray-800); }

/* HERO */
.sm-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 48px 80px;
  max-width: 900px;
}
.sm-hero-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-500);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 32px;
}
.sm-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}
.sm-hero h1 em { font-style: italic; color: var(--gray-600); }
.sm-hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--gray-600);
  max-width: 640px;
  margin-bottom: 48px;
}
.sm-hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}
.sm-btn-primary {
  background: var(--black);
  color: var(--white);
  padding: 14px 32px;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}
.sm-btn-primary:hover { background: var(--gray-800); }
.sm-btn-secondary {
  color: var(--gray-600);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--gray-400);
  padding-bottom: 2px;
  transition: color 0.2s;
}
.sm-btn-secondary:hover { color: var(--black); border-color: var(--black); }

/* TENSION BANNER */
.sm-tension-banner {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 48px;
  display: flex;
  justify-content: center;
}
.sm-tension-inner { max-width: 800px; text-align: center; }
.sm-tension-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.sm-tension-quote {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.6;
  color: var(--gray-800);
  font-style: italic;
}
.sm-tension-counter {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 20px;
  line-height: 1.6;
}
.sm-tension-counter strong { color: var(--gray-600); }

/* SECTIONS */
.sm-section { padding: 96px 48px; }
.sm-section-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  max-width: 1100px;
}
.sm-section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gray-500);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-top: 8px;
}
.sm-section-content h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}
.sm-section-content p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--gray-600);
  margin-bottom: 20px;
  max-width: 580px;
}

/* THESIS */
.sm-thesis-section { border-top: 1px solid var(--gray-200); }
.sm-thesis-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  max-width: 1100px;
  margin-top: 48px;
  margin-left: 360px;
}
.sm-thesis-item {
  padding: 32px;
  border-left: 2px solid var(--gray-200);
}
.sm-thesis-item h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.sm-thesis-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-600);
}

/* HOW IT WORKS */
.sm-process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  max-width: 1100px;
  margin-top: 56px;
  margin-left: 360px;
}
.sm-step-number {
  font-family: var(--font-mono);
  font-size: 48px;
  color: var(--gray-200);
  font-weight: 700;
  margin-bottom: 20px;
}
.sm-step h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.sm-step p { font-size: 14px; line-height: 1.7; color: var(--gray-600); }

/* CARD GRID */
.sm-cards-section {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  padding: 96px 48px;
}
.sm-cards-header { max-width: 1100px; margin-bottom: 56px; }
.sm-cards-header h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 400;
  margin-bottom: 16px;
}
.sm-cards-header p { color: var(--gray-500); font-size: 15px; max-width: 500px; }
.sm-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  max-width: 1100px;
}
.sm-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}
.sm-card:hover { border-color: var(--gray-400); transform: translateY(-2px); }
.sm-card-type {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gray-400);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.sm-card-type.tension { color: var(--accent); }
.sm-card-type.quote { color: #2563eb; }
.sm-card-type.keyword { color: #059669; }
.sm-card h3 { font-size: 16px; font-weight: 600; line-height: 1.4; margin-bottom: 12px; }
.sm-card p { font-size: 14px; line-height: 1.65; color: var(--gray-600); }
.sm-card-provenance {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--gray-200);
}

/* SALON */
.sm-salon-section { background: var(--black); color: var(--white); }
.sm-salon-section .sm-section-label { color: var(--gray-500); }
.sm-salon-section .sm-section-content h2 { color: var(--white); }
.sm-salon-section .sm-section-content p { color: var(--gray-400); }
.sm-salon-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-800);
}
.sm-salon-detail-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gray-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.sm-salon-detail-value { font-size: 15px; color: var(--gray-200); }

/* CONTRIBUTORS */
.sm-contributors-grid {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.sm-contributor {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.sm-contributor-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--gray-400);
}
.sm-contributor-name { font-size: 13px; font-weight: 600; }
.sm-contributor-title {
  font-size: 11px;
  color: var(--gray-500);
  text-align: center;
  max-width: 120px;
}

/* CTA */
.sm-cta-section {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  text-align: center;
  padding: 96px 48px;
}
.sm-cta-section h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 400;
  margin-bottom: 20px;
}
.sm-cta-section p {
  color: var(--gray-500);
  font-size: 16px;
  margin-bottom: 40px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.sm-cta-actions { display: flex; gap: 16px; justify-content: center; }

/* FOOTER */
.sm-footer {
  padding: 48px;
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sm-footer p { font-size: 12px; color: var(--gray-400); }
.sm-footer a { font-size: 12px; color: var(--gray-500); text-decoration: none; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .sm-nav { padding: 20px 24px; }
  .sm-nav-links { gap: 16px; }
  .sm-hero { padding: 120px 24px 60px; }
  .sm-section { padding: 64px 24px; }
  .sm-section-grid { grid-template-columns: 1fr; gap: 24px; }
  .sm-process-steps { grid-template-columns: 1fr; gap: 32px; margin-left: 0; }
  .sm-thesis-columns { grid-template-columns: 1fr; margin-left: 0; }
  .sm-salon-details { grid-template-columns: 1fr; }
  .sm-card-grid { grid-template-columns: 1fr; }
  .sm-cards-section { padding: 64px 24px; }
  .sm-cta-section { padding: 64px 24px; }
}