/* project4.css - VR Experience Design, restyled to match project0's light design system */

:root {
  --bg-solid: #ffffff;
  --bg: #ffffff;
  --panel-bg: #eeeeee;
  --text: #100f0e;
  --muted: #47423d;
  --accent: #D03A46;
  --accent-light: #e0636c;
  --paper: #faf8f2;
  --shadow: rgba(16, 15, 14, 0.08);
  --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);
  --success: #268C50;
  --success-border: rgba(38, 140, 80, 0.35);
  --success-bg: rgba(38, 140, 80, 0.09);
  --danger: #B23842;
  --danger-border: rgba(178, 56, 66, 0.35);
  --danger-bg: rgba(178, 56, 66, 0.09);
  --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 {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateX(-3px);
}

.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;
  opacity: 1;
  transform: translateY(0);
  transition: all 0.6s ease;
}

.project-section.visible {
  opacity: 1;
  transform: translateY(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;
}

.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;
}

.hero-image {
  width: 100%;
  max-width: 800px;
  border-radius: 0;
  opacity: 1;
  display: block;
  margin: 0 auto;
  box-shadow: 0 10px 40px rgba(20, 18, 16, 0.1);
  border: 1px solid var(--card-border);
}

/* Typography */
h2 {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.4px;
  line-height: 1.3;
  text-transform: none;
  margin-bottom: 2.75rem;
  color: var(--text);
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  text-transform: none;
  margin-bottom: 1.5rem;
  color: var(--text);
}

h4 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1px;
  margin-bottom: 1.25rem;
  color: var(--text);
}

p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--muted);
  margin-bottom: 2.5rem;
  font-weight: 400;
}

p:last-child {
  margin-bottom: 0;
}

/* Overview Section */
.overview-section .section-content > p {
  margin-bottom: 4rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.project-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem 4rem;
  margin-top: 4rem;
  padding: 3rem 0;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.detail-label {
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.detail-value {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 500;
}

/* Challenge Section */
.challenge-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.challenge-item {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  border-top: 3px solid var(--accent);
  box-shadow: var(--shadow-sm);
}

.challenge-item h4 {
  color: var(--accent);
  margin-bottom: 1rem;
}

.application-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
}

.app-tag {
  background: var(--decision-bg);
  color: var(--accent);
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--decision-border);
  border-radius: 0;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.app-tag:hover {
  background: var(--decision-border);
  transform: translateY(-2px);
}

/* Process Flow */
.process-flow {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding: 0 2rem;
  position: relative;
}

.process-flow::before {
  content: '';
  position: absolute;
  left: calc(2rem + 25px);
  top: 25px;
  bottom: 25px;
  width: 1px;
  background: var(--card-border);
  z-index: 0;
}

.process-stage {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 2rem;
  align-items: start;
  position: relative;
}

.stage-number {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--bg-solid);
}

.stage-content h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  text-transform: none;
  letter-spacing: -0.2px;
  color: var(--text);
}

.stage-activities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.activity {
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  background: var(--card-hover-bg);
  border: 1px solid var(--card-border);
  border-radius: 0;
  color: var(--muted);
  transition: all 0.3s ease;
}

.activity:hover {
  background: var(--decision-bg);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Background Section */
.concept-explanation {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 3rem;
  align-items: start;
  margin: 3rem 0;
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
}

.concept-visual {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.concept-image {
  width: 100%;
  max-width: 200px;
  height: 180px;
  border-radius: 0;
  border: 1px solid var(--card-border);
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}

.concept-text p {
  margin-bottom: 1.5rem;
}

.trigger-examples {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.trigger {
  background: var(--decision-bg);
  padding: 1rem;
  border: 1px solid var(--decision-border);
  font-size: 0.9rem;
  color: var(--muted);
}

/* Movies Section */
.movies-showcase {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin: 3rem 0;
}

.movie-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.movie-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.movie-poster {
  width: 100%;
  height: 280px;
  overflow: hidden;
  border-radius: 0;
  border: 1px solid var(--card-border);
}

.movie-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.movie-card:hover .movie-poster img {
  transform: scale(1.05);
}

.movie-details h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.movie-details p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.design-insight {
  background: var(--decision-bg);
  color: var(--accent);
  padding: 0.8rem 1rem;
  font-size: 0.85rem;
  border-left: 3px solid var(--accent);
  font-style: italic;
}

.research-conclusion {
  margin-top: 3rem;
  font-size: 1.05rem;
  line-height: 1.75;
  font-style: italic;
}

/* Research Section */
.research-methodology {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  margin: 3rem 0;
}

.method-detail {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent);
  box-shadow: var(--shadow-sm);
}

.method-detail h4 {
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.goal-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.goal-item {
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
}

.goal-item::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

.method-specs {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.spec-item {
  font-size: 0.95rem;
  color: var(--muted);
}

.spec-item strong {
  color: var(--accent);
}

/* Findings Grid */
.findings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.finding-card {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.finding-card:hover {
  background: var(--card-hover-bg);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.finding-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 1rem;
  opacity: 0.85;
}

.finding-card h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.user-quote {
  font-style: italic;
  color: var(--text);
  background: var(--decision-bg);
  padding: 1rem;
  border-left: 3px solid var(--accent);
  margin: 1rem 0;
  font-size: 0.9rem;
}

.design-implication {
  background: var(--decision-bg);
  color: var(--text);
  padding: 0.8rem 1rem;
  font-size: 0.85rem;
  border-left: 3px solid var(--accent);
  margin-top: 1rem;
}

.design-implication strong {
  color: var(--accent);
}

/* Requirements Section */
.requirements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin: 3rem 0;
}

.requirement-category {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  border-top: 4px solid var(--accent);
  box-shadow: var(--shadow-sm);
}

.requirement-category h3 {
  margin-top: 0;
  margin-bottom: 2rem;
}

.req-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.req-item {
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
}

.req-item::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Experience Design Section */
.flow-sequence {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin: 3rem 0;
}

.flow-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.flow-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.flow-image {
  width: 100%;
}

.flow-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
  border: 1px solid var(--card-border);
}

.flow-content h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.design-rationale {
  background: var(--decision-bg);
  color: var(--text);
  padding: 1rem;
  font-size: 0.9rem;
  border-left: 3px solid var(--accent);
  margin-top: 1rem;
}

.design-rationale strong {
  color: var(--accent);
}

.unity-showcase {
  text-align: center;
  margin: 4rem 0;
}

.unity-showcase img {
  width: 100%;
  max-width: 100%;
  border-radius: 0;
  opacity: 1;
  margin-bottom: 1rem;
  border: 1px solid var(--card-border);
  box-shadow: 0 10px 40px rgba(20, 18, 16, 0.1);
}

.image-caption {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}

/* Technical Implementation */
.tech-stack {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  margin: 3rem 0;
}

.tech-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.tech-item:hover {
  background: var(--card-hover-bg);
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.tech-icon {
  margin-bottom: 1.5rem;
}

.tech-icon img {
  max-width: 150px;
  height: auto;
}

.tech-item h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.tech-decisions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.tech-decision-card {
  background: var(--decision-bg);
  padding: 2rem;
  border: 1px solid var(--decision-border);
}

.tech-decision-card h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

/* Testing Section */
.pilot-findings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.pilot-card {
  padding: 2rem;
  border-radius: 0;
}

.pilot-card.problems {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  border-left: 4px solid var(--danger);
}

.pilot-card.solutions {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  border-left: 4px solid var(--success);
}

.pilot-card h4 {
  margin-bottom: 1.5rem;
}

.pilot-card.problems h4 {
  color: var(--danger);
}

.pilot-card.solutions h4 {
  color: var(--success);
}

.pilot-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.pilot-item {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
}

.pilot-item strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.pilot-impact,
.pilot-result {
  display: block;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  padding-left: 1rem;
  border-left: 2px solid var(--card-border);
}

.results-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.result-metric {
  background: var(--decision-bg);
  padding: 2rem;
  border: 1px solid var(--decision-border);
  text-align: center;
  transition: transform 0.3s ease;
}

.result-metric.major {
  border: 2px solid var(--accent);
  box-shadow: 0 5px 15px rgba(208, 58, 70, 0.15);
}

.result-metric:hover {
  transform: translateY(-8px);
}

.metric-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 1rem;
}

.metric-label {
  color: var(--text);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.8rem;
  display: block;
}

.metric-detail {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.validation-cards {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin: 3rem 0;
}

.validation-item {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.validation-item:hover {
  background: var(--card-hover-bg);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.validation-item h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

/* Framework Section */
.framework-blocks {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin: 3rem 0;
}

.framework-block {
  background: var(--card-bg);
  padding: 2.5rem;
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.block-number {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.12;
}

.framework-block h3 {
  margin-top: 0;
  margin-bottom: 2rem;
  color: var(--accent);
}

.principle-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.principle-item {
  padding-left: 2rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
}

.principle-item::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Impact Section */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.impact-card {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.impact-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.impact-card h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

/* Reflection Section */
.takeaways-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.takeaway-card {
  background: var(--decision-bg);
  padding: 2rem;
  border: 1px solid var(--decision-border);
  transition: transform 0.3s ease;
}

.takeaway-card:hover {
  transform: translateY(-5px);
  background: var(--decision-border);
}

.takeaway-card h4 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.takeaway-card p {
  margin: 0;
  font-size: 0.95rem;
}

/* Bottom Link Wrapper */
.bottom-link-wrapper {
  position: relative;
  margin-bottom: 40px;
  padding-top: 2.5rem;
  min-height: 60px;
  text-align: center;
}

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

.footer-back-link .back-link-arrow {
  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;
}

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

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

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

/* 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: 1024px) {
  .findings-grid,
  .requirements-grid,
  .tech-stack,
  .impact-grid,
  .takeaways-grid,
  .pilot-findings,
  .research-methodology {
    grid-template-columns: 1fr;
  }
  
  .challenge-breakdown,
  .tech-decisions,
  .results-metrics {
    grid-template-columns: 1fr;
  }
  
  .flow-card,
  .movie-card {
    grid-template-columns: 1fr;
  }
  
  .concept-explanation {
    grid-template-columns: 1fr;
  }
  
  .trigger-examples {
    grid-template-columns: 1fr;
  }
}

@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;
  }
  
  h2 {
    font-size: 1.6rem;
    margin-bottom: 2rem;
  }
  
  h3 {
    font-size: 1.1rem;
  }
  
  .project-details {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .process-flow {
    padding: 0 1rem;
  }

  .process-flow::before {
    left: calc(1rem + 20px);
    top: 20px;
    bottom: 20px;
  }
  
  .process-stage {
    grid-template-columns: 40px 1fr;
    gap: 1.5rem;
  }
  
  .stage-number {
    width: 40px;
    height: 40px;
    font-size: 0.8rem;
  }
  
  .stage-content h3 {
    font-size: 1.1rem;
  }
  
  .activity {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
  }
  
  .bottom-link-wrapper {
    text-align: center;
    margin-bottom: 50px;
  }
  
  .footer-back-link {
    margin: 20px auto;
  }
  
  .site-footer {
    padding: 30px 20px;
  }
}

@media (max-width: 480px) {
  .project-section {
    padding: 3rem 0;
  }
  
  .project-title {
    font-size: 2rem;
  }
}