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

:root {
  /* Mid-century modern warm palette */
  --color-bg: #faf6f1;
  --color-surface: #fff8f2;
  --color-text: #2c2416;
  --color-text-secondary: #5c4f3d;
  --color-accent: #c0642b;
  --color-accent-light: #d4783f;
  --color-accent-subtle: #f5ebe0;
  --color-border: #ddd0c0;
  --color-muted: #8c7e6a;
  --color-warm-dark: #3d3024;
  --color-teal: #2a6b5e;
  --color-teal-light: #3a8b7a;
  --color-mustard: #c9a227;
  --color-cream: #f7f0e6;
  --color-footer-bg: #3d3024;
  --color-nav-bg: rgba(250, 246, 241, 0.95);
  --color-nav-bg-solid: rgba(250, 246, 241, 0.98);
  --color-btn-text: #fff;
  --color-footer-text: rgba(255, 255, 255, 0.5);
  --color-footer-link: rgba(255, 255, 255, 0.6);
  --color-error: #b53a25;
  --color-focus-ring: rgba(192, 100, 43, 0.1);
  --color-skill-border: rgba(192, 100, 43, 0.15);
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Consolas', 'Fira Code', monospace;
  --max-width: 1100px;
  --nav-height: 68px;
  --radius: 4px;
  --shadow-sm: 0 1px 4px rgba(44, 36, 22, 0.06);
  --shadow-md: 0 4px 16px rgba(44, 36, 22, 0.1);
  --shadow-lg: 0 8px 32px rgba(44, 36, 22, 0.12);
  --transition: 0.3s ease;
}

/* ===== Dark Mode ===== */
html.dark {
  --color-bg: #1a1714;
  --color-surface: #242018;
  --color-text: #e8e0d4;
  --color-text-secondary: #b5a998;
  --color-accent: #d4783f;
  --color-accent-light: #e08b52;
  --color-accent-subtle: #2e2418;
  --color-border: #3d3528;
  --color-muted: #8a7e6e;
  --color-warm-dark: #ede5d8;
  --color-teal: #4db3a0;
  --color-teal-light: #5fc9b4;
  --color-mustard: #dbb63a;
  --color-cream: #201c16;
  --color-footer-bg: #121010;
  --color-nav-bg: rgba(26, 23, 20, 0.95);
  --color-nav-bg-solid: rgba(26, 23, 20, 0.98);
  --color-btn-text: #1a1714;
  --color-footer-text: rgba(232, 224, 212, 0.45);
  --color-footer-link: rgba(232, 224, 212, 0.6);
  --color-error: #e05a3a;
  --color-focus-ring: rgba(212, 120, 63, 0.2);
  --color-skill-border: rgba(212, 120, 63, 0.25);
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s ease, color 0.4s ease;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-light);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--color-nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-warm-dark);
  letter-spacing: 0.01em;
}

.nav-logo:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

.nav-links a {
  padding: 8px 18px;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-warm-dark);
  border-radius: 1px;
  transition: all var(--transition);
}

/* ===== Theme Toggle ===== */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-muted);
  transition: all var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-moon {
  display: block;
}

.theme-toggle .icon-sun {
  display: none;
}

html.dark .theme-toggle .icon-moon {
  display: none;
}

html.dark .theme-toggle .icon-sun {
  display: block;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
  background: var(--color-cream);
  position: relative;
  overflow: hidden;
  transition: background-color 0.4s ease;
}

/* Geometric decorative elements */
.hero::before {
  content: '';
  position: absolute;
  top: 12%;
  right: 8%;
  width: 200px;
  height: 200px;
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  opacity: 0.12;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 15%;
  left: 6%;
  width: 120px;
  height: 120px;
  background: var(--color-mustard);
  opacity: 0.08;
  transform: rotate(45deg);
}

.hero-content {
  max-width: 720px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-greeting {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--color-warm-dark);
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  font-weight: 400;
  font-style: italic;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.hero-summary {
  font-size: 1.02rem;
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-meta {
  font-size: 0.88rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-align: center;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-btn-text);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-btn-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-btn-text);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

/* ===== Section Styles ===== */
.section-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 12px;
  color: var(--color-warm-dark);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  margin-top: 10px;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ===== About Section ===== */
.about {
  padding: 100px 0 80px;
  background: var(--color-bg);
  transition: background-color 0.4s ease;
}

.about-intro {
  max-width: 760px;
  margin-bottom: 48px;
}

.about-intro p {
  margin-bottom: 16px;
  color: var(--color-text-secondary);
  line-height: 1.85;
}

/* ===== Expertise Tracks ===== */
.expertise-tracks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

.track-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.track-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
}

.track-card:hover {
  box-shadow: var(--shadow-md);
}

.track-icon {
  width: 40px;
  height: 40px;
  color: var(--color-teal);
  margin-bottom: 16px;
}

.track-icon svg {
  width: 100%;
  height: 100%;
}

.track-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-warm-dark);
}

.track-highlights {
  list-style: none;
  margin-bottom: 20px;
}

.track-highlights li {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  padding: 5px 0 5px 20px;
  position: relative;
  line-height: 1.6;
}

.track-highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  background: var(--color-mustard);
  transform: rotate(45deg);
}

.track-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ===== About Details ===== */
.about-details {
  margin-bottom: 48px;
}

.detail-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.detail-card h3 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.detail-item {
  margin-bottom: 12px;
}

.detail-item:last-child {
  margin-bottom: 0;
}

.detail-label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-warm-dark);
}

.detail-meta {
  display: block;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  display: inline-block;
  padding: 5px 14px;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-skill-border);
}

/* ===== Publications ===== */
.publications {
  margin-bottom: 64px;
}

.publications h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-warm-dark);
}

.pub-list {
  list-style: none;
}

.pub-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  line-height: 1.7;
}

.pub-item:last-child {
  border-bottom: none;
}

/* ===== Experience Timeline ===== */
.experience h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 32px;
  color: var(--color-warm-dark);
}

.timeline {
  position: relative;
  padding-left: 36px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -36px;
  top: 6px;
  width: 18px;
  height: 18px;
  background: var(--color-accent);
  transform: rotate(45deg);
  z-index: 1;
}

.timeline-content h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-warm-dark);
}

.timeline-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 8px;
  font-style: italic;
}

.timeline-content > p:last-child {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.timeline-details {
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline-details li {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding: 4px 0 4px 18px;
  position: relative;
}

.timeline-details li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--color-mustard);
  border-radius: 50%;
}

.timeline-details a {
  font-weight: 500;
}

/* ===== Projects Page ===== */
.projects-page {
  padding: calc(var(--nav-height) + 60px) 0 80px;
}

/* Project Section Headers */
.project-section-header {
  margin-top: 56px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}

.project-section-header:first-of-type {
  margin-top: 0;
}

.project-section-header h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-warm-dark);
  margin-bottom: 4px;
}

.project-section-header p {
  font-size: 0.92rem;
  color: var(--color-muted);
}

/* Featured Project Cards */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 16px;
}

.featured-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  position: relative;
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.featured-card-accent {
  height: 5px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
}

.featured-card-content {
  padding: 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.featured-card .project-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  color: var(--color-teal);
}

.featured-card .project-icon svg {
  width: 100%;
  height: 100%;
}

.featured-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-warm-dark);
}

.featured-card .project-description {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.featured-card .project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.featured-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-teal);
  letter-spacing: 0.02em;
  margin-top: auto;
}

.featured-card:hover .featured-link {
  color: var(--color-teal-light);
  text-decoration: underline;
}

/* Regular Project Cards */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-mustard));
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-card:hover::before {
  opacity: 1;
}

.project-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  color: var(--color-teal);
}

.project-icon svg {
  width: 100%;
  height: 100%;
}

.project-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-warm-dark);
}

.project-description {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.project-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-teal);
  margin-top: auto;
  letter-spacing: 0.02em;
}

.project-link:hover {
  color: var(--color-teal-light);
  text-decoration: underline;
}

/* ===== Case Study Pages ===== */
.case-study-page {
  padding: calc(var(--nav-height) + 40px) 0 80px;
}

.back-link {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.back-link:hover {
  color: var(--color-accent);
}

.case-study-hero-section {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 2px solid var(--color-border);
}

.case-study-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--color-warm-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.case-study-subtitle {
  font-size: 1.08rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 700px;
  margin-bottom: 20px;
}

.case-study-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-study-content {
  max-width: 760px;
}

.case-study-section {
  margin-bottom: 40px;
}

.case-study-section h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-warm-dark);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.case-study-section p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
  margin-bottom: 12px;
}

.case-study-list {
  padding-left: 0;
  list-style: none;
  margin-bottom: 12px;
}

.case-study-list li {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  padding: 6px 0 6px 22px;
  position: relative;
}

ul.case-study-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-mustard);
  transform: rotate(45deg);
}

ol.case-study-list {
  counter-reset: step-counter;
}

ol.case-study-list li {
  counter-increment: step-counter;
}

ol.case-study-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 6px;
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  color: var(--color-btn-text);
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* Outcomes Grid */
.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.outcome-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-teal);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.outcome-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-teal);
  margin-bottom: 6px;
}

.outcome-value {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Case Study Navigation */
.case-study-nav {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 2px solid var(--color-border);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Contact Page ===== */
.contact-page {
  padding: calc(var(--nav-height) + 60px) 0 80px;
}

.contact-availability {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-teal);
  border-radius: var(--radius);
  padding: 16px 24px;
  margin-bottom: 40px;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.contact-availability p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.contact-availability a {
  font-weight: 600;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.contact-item svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-teal);
  margin-top: 2px;
}

.contact-item h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: 2px;
  font-weight: 600;
}

.contact-item p,
.contact-item a {
  font-size: 0.95rem;
}

/* ===== Contact Form ===== */
.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-cream);
  transition: border-color var(--transition), box-shadow var(--transition), background-color 0.4s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-status {
  margin-top: 16px;
  font-size: 0.9rem;
  text-align: center;
}

.form-status.success {
  color: var(--color-teal);
}

.form-status.error {
  color: var(--color-error);
}

/* ===== Footer ===== */
.footer {
  border-top: 2px solid var(--color-border);
  padding: 32px 0;
  margin-top: 40px;
  background: var(--color-footer-bg);
  transition: background-color 0.4s ease;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-content p {
  font-size: 0.85rem;
  color: var(--color-footer-text);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-footer-link);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--color-mustard);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-nav-bg-solid);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 2px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .expertise-tracks {
    grid-template-columns: 1fr;
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .outcomes-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .hero {
    padding: calc(var(--nav-height) + 24px) 24px 60px;
    min-height: auto;
  }

  .hero-name {
    font-size: 2.4rem;
  }

  .hero::before,
  .hero::after {
    display: none;
  }

  .case-study-nav {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .contact-form {
    padding: 20px;
  }

  .case-study-title {
    font-size: 1.6rem;
  }

  .track-card {
    padding: 20px;
  }
}