/* placeholder.css - NDA placeholder page, matches project0's light design system */

:root {
  --bg-solid: #ffffff;
  --bg: #ffffff;
  --panel-bg: #eeeeee;
  --text: #100f0e;
  --muted: #47423d;
  --accent: #D03A46;
  --accent-light: #e0636c;
  --card-bg: #ffffff;
  --card-border: rgba(16, 15, 14, 0.14);
  --card-hover-bg: #fbfaf8;
  --decision-bg: rgba(208, 58, 70, 0.06);
  --decision-border: rgba(208, 58, 70, 0.22);
  --shadow-sm: 0 1px 2px rgba(16, 15, 14, 0.04), 0 4px 14px rgba(16, 15, 14, 0.07);
  --shadow-md: 0 4px 10px rgba(16, 15, 14, 0.06), 0 12px 28px rgba(16, 15, 14, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg-solid);
  overflow-x: hidden;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
}

/* Progress Bar */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent);
  width: 0%;
  z-index: 1000;
  transition: width 0.1s ease;
}

/* Back Link */
.back-link {
  position: absolute;
  top: 50px;
  left: max(2rem, calc((100vw - 900px) / 2));
  z-index: 100;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text);
}

.back-link-arrow {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.back-link-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--text);
  transition: stroke 0.3s ease, transform 0.3s ease;
}

.back-link:hover .back-link-arrow,
.footer-back-link:hover .back-link-arrow {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateX(-3px);
}

.back-link:hover .back-link-arrow svg,
.footer-back-link:hover .back-link-arrow svg {
  stroke: #ffffff;
}

/* Main Content */
.project-content {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Sections */
.project-section {
  padding: 5.5rem 0;
}

.section-content {
  max-width: 900px;
  margin: 0 auto;
}

/* Hero Section */
.project-hero-section {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7rem 0 5rem;
}

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

.project-meta {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2.5rem;
  margin-top: 2rem;
  font-weight: 700;
}

.project-title {
  font-size: 3.1rem;
  font-weight: 800;
  letter-spacing: -1px;
  text-transform: none;
  margin-bottom: 2.5rem;
  color: var(--text);
  line-height: 1.15;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.project-subtitle {
  font-size: 1.2rem;
  line-height: 1.65;
  color: var(--muted);
  font-weight: 400;
  max-width: 700px;
  margin: 0 auto 2.5rem;
  letter-spacing: 0;
}

.hero-image-wrapper {
  margin-top: 4rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
}

.hero-image {
  display: block;
  width: 100%;
  max-width: 900px;
  border-radius: 0;
  border: 1px solid var(--card-border);
  box-shadow: 0 10px 40px rgba(20, 18, 16, 0.1);
}

/* NDA Callout */
.nda-callout {
  background: var(--decision-bg);
  border: 1px solid var(--decision-border);
  border-left: 3px solid var(--accent);
  border-radius: 0;
  padding: 2.5rem 2.75rem;
  text-align: center;
}

.nda-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.nda-callout p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
  margin: 0 auto;
  max-width: 620px;
}

/* Bottom Link Wrapper */
.bottom-link-wrapper {
  position: relative;
  margin-bottom: 40px;
  padding-top: 1rem;
  min-height: 60px;
  text-align: center;
}

.footer-back-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text);
}

/* Site Footer */
.site-footer {
  text-align: center;
  padding: 45px 20px;
  font-size: 0.9rem;
  color: #8a8682;
  border-top: 1px solid #e8e5e1;
  background: rgba(250, 249, 247, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
  .project-content {
    padding: 0 1.5rem;
  }

  .back-link {
    top: 20px;
    left: 1.5rem;
  }

  .back-link-arrow {
    width: 34px;
    height: 34px;
  }

  .back-link-arrow svg {
    width: 14px;
    height: 14px;
  }

  .project-section {
    padding: 4rem 0;
  }

  .project-hero-section {
    padding: 4.5rem 0 3.5rem;
  }

  .project-title {
    font-size: 2.5rem;
  }

  .project-subtitle {
    font-size: 1rem;
  }

  .nda-callout {
    padding: 2rem 1.5rem;
  }

  .nda-callout p {
    font-size: 0.95rem;
  }

  .bottom-link-wrapper {
    margin-bottom: 50px;
  }

  .site-footer {
    padding: 30px 20px;
  }
}

@media (max-width: 480px) {
  .project-section {
    padding: 3rem 0;
  }

  .project-title {
    font-size: 2rem;
  }
}