/* ============================================================
   RADHIKA GULATI — Portfolio Stylesheet
   Economist & Data Scientist
   
   Design: Premium, sophisticated, economics/data-science themed
   Stack:  Pure vanilla CSS with custom properties
   ============================================================ */


/* ─────────────────────────────────────────────
   0. CSS CUSTOM PROPERTIES (Design Tokens)
   ───────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-primary:   #0A0A0F;
  --bg-secondary: #F8F7F4;
  --bg-card:      #FFFFFF;
  --bg-subtle:    #F0EFEB;

  /* Typography colours */
  --text-primary:   #1A1A2E;
  --text-secondary: #6B6B7B;
  --text-on-dark:   #F8F7F4;

  /* Accents */
  --accent-copper: #C4713B;
  --accent-gold:   #D4A853;
  --accent-teal:   #2D8F8F;
  --accent-chart:  #4A90D9;

  /* Utility */
  --border: rgba(26, 26, 46, 0.08);
  --glow:   rgba(196, 113, 59, 0.15);

  /* Font stacks */
  --font-heading:  'Playfair Display', Georgia, serif;
  --font-body:     'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:     'Space Mono', 'Courier New', monospace;
  --font-code:     'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing scale (multiples of 8) */
  --sp-1:  8px;
  --sp-2:  16px;
  --sp-3:  24px;
  --sp-4:  32px;
  --sp-5:  40px;
  --sp-6:  48px;
  --sp-7:  56px;
  --sp-8:  64px;
  --sp-9:  72px;
  --sp-10: 80px;
  --sp-12: 96px;
  --sp-15: 120px;
}


/* ─────────────────────────────────────────────
   1. CSS RESET
   ───────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}


/* ─────────────────────────────────────────────
   2. SHARED LAYOUT UTILITIES
   ───────────────────────────────────────────── */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

.section-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--sp-2);
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--sp-2);
}

.section-subtitle {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}


/* ─────────────────────────────────────────────
   3. NAVIGATION (.navbar)
   ───────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  background: rgba(248, 247, 244, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all 0.35s ease;
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(248, 247, 244, 0.95);
  border-bottom-color: var(--border);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.04);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.logo-dot {
  color: var(--accent-copper);
}

/* Links */
.nav-links {
  display: flex;
  gap: var(--sp-4);
  align-items: center;
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-copper);
  border-radius: 1px;
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  width: 100%;
}

/* Action buttons */
.nav-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.nav-cv-btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: var(--sp-1) var(--sp-2);
  color: var(--text-secondary);
  background: transparent;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-cv-btn:hover {
  border-color: var(--accent-copper);
  color: var(--accent-copper);
}

.nav-cta-btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  background: var(--text-primary);
  color: #fff;
  border-radius: 6px;
  padding: var(--sp-1) var(--sp-2);
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.nav-cta-btn:hover {
  background: var(--accent-copper);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hamburger → X animation */
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu dropdown */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: rgba(248, 247, 244, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: var(--sp-3);
  flex-direction: column;
  gap: var(--sp-2);
}

.mobile-menu.active {
  display: flex;
}

.mobile-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--sp-1) 0;
  transition: color 0.3s ease;
}

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


/* ─────────────────────────────────────────────
   4. HERO SECTION (#hero)
   ───────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: #F0EDE6;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.5;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px var(--sp-3) var(--sp-10);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--sp-10);
  align-items: center;
  width: 100%;
}

/* Hero content (left) */
.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  margin-bottom: var(--sp-3);
  display: flex;
  align-items: center;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4CAF50;
  margin-right: 10px;
  animation: pulse 2s ease-in-out infinite;
}

h1.hero-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  color: var(--text-primary);
  line-height: 1.15;
  margin: 0;
}

.hero-title em {
  font-style: italic;
  font-weight: inherit;
  color: var(--accent-copper);
  background: linear-gradient(
    90deg,
    var(--accent-copper) 0%,
    var(--accent-gold) 50%,
    var(--accent-copper) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin: var(--sp-3) 0 var(--sp-4);
}

/* CTA buttons */
.hero-ctas {
  display: flex;
  gap: var(--sp-2);
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-copper);
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(0.9);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 113, 59, 0.3);
}

.btn-outline {
  border: 1px solid var(--text-primary);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--accent-copper);
  color: var(--accent-copper);
}

.hero-touch-link {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: var(--sp-2);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.3s ease;
}

.hero-touch-link:hover {
  color: var(--accent-copper);
}

/* Hero stats (right column) */
.hero-stats {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.stat-card {
  padding: var(--sp-3) 28px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.35s ease;
}

.stat-card:hover {
  border-color: rgba(196, 113, 59, 0.3);
  box-shadow: 0 8px 24px rgba(196, 113, 59, 0.08);
  transform: translateY(-2px);
}

.stat-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-label {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}


/* ─────────────────────────────────────────────
   5. ABOUT SECTION (#about)
   ───────────────────────────────────────────── */
.about {
  background: var(--bg-secondary);
  padding: var(--sp-15) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--sp-10);
  margin-top: var(--sp-6);
  align-items: start;
}

.about-content p {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--sp-2);
}

.about-content p:last-child {
  margin-bottom: 0;
}

.highlight {
  color: var(--accent-copper);
  font-weight: 600;
}

/* Info table */
.about-info {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.info-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--sp-3);
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.info-row:first-child {
  border-top: 1px solid var(--border);
}

.info-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-copper);
}

.info-value {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--text-primary);
}


/* ─────────────────────────────────────────────
   6. SKILLS SECTION (#skills)
   ───────────────────────────────────────────── */
.skills {
  background: var(--bg-subtle);
  padding: var(--sp-15) 0;
}

.skills-header {
  text-align: center;
  margin-bottom: var(--sp-8);
}

.skills-header .section-subtitle {
  margin: 0 auto;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--sp-5) var(--sp-4);
  transition: all 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
  border-color: var(--accent-copper);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  margin-bottom: 28px;
}

.skill-icon {
  color: var(--accent-copper);
  font-size: 1rem;
}

.skill-category {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-copper);
}

.skill-list {
  list-style: none;
  padding: 0;
}

.skill-list li {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: 10px 0 10px var(--sp-2);
  border-left: 2px solid transparent;
  transition: all 0.2s ease;
}

.skill-list li:hover {
  border-left-color: var(--accent-copper);
  color: var(--text-primary);
  padding-left: 20px;
}


/* ─────────────────────────────────────────────
   7. CASE STUDIES / WORK SECTION (#work)
   ───────────────────────────────────────────── */
.work {
  background: var(--bg-secondary);
  padding: var(--sp-15) 0;
}

.work-header {
  margin-bottom: var(--sp-8);
}

.case-studies {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.case-study {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: var(--sp-6);
  display: grid;
  grid-template-columns: 0.35fr 0.65fr;
  gap: var(--sp-6);
  transition: all 0.3s ease;
}

.case-study:hover {
  border-color: rgba(196, 113, 59, 0.3);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
}

.case-study:nth-child(even) {
  background: var(--bg-subtle);
}

/* Case study – left column */
.case-left {
  display: flex;
  flex-direction: column;
}

.case-number {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--sp-1);
}

.case-category {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-copper);
  margin-bottom: var(--sp-2);
}

.case-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  margin-top: 20px;
}

.tech-tag {
  font-family: var(--font-code);
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
  transition: all 0.25s ease;
}

.tech-tag:hover {
  border-color: var(--accent-teal);
  color: var(--accent-teal);
}

/* Case study – right column */
.case-right {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.case-section-label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-copper);
  margin-bottom: var(--sp-1);
}

.case-section p {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-insight {
  border-left: 3px solid var(--accent-copper);
  padding-left: var(--sp-3);
  margin: var(--sp-1) 0;
}

.case-insight blockquote {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.7;
  font-style: normal;
  margin: 0;
}

.case-bottom {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  padding-top: var(--sp-2);
  border-top: 1px solid var(--border);
}


/* ─────────────────────────────────────────────
   8. PHILOSOPHY SECTION (#philosophy)
   ───────────────────────────────────────────── */
.philosophy {
  background: var(--bg-primary);
  padding: var(--sp-15) 0;
}

.philosophy-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

.philosophy-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-copper);
  margin-bottom: var(--sp-4);
}

.philosophy-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--text-on-dark);
  line-height: 1.4;
}

.philosophy-text em {
  font-style: italic;
  color: var(--accent-copper);
}


/* ─────────────────────────────────────────────
   9. CONTACT SECTION (#contact)
   ───────────────────────────────────────────── */
.contact {
  background: var(--bg-secondary);
  padding: var(--sp-15) 0;
}

.contact-header {
  margin-bottom: var(--sp-6);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--sp-4);
  transition: all 0.3s ease;
  background: var(--bg-card);
}

.contact-card:hover {
  border-color: var(--accent-copper);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.05);
}

.contact-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.contact-icon {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.contact-label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-copper);
  margin-bottom: 12px;
}

.contact-value {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-primary);
  word-break: break-word;
}


/* ─────────────────────────────────────────────
   10. FOOTER (.footer)
   ───────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--sp-3) 0;
  background: var(--bg-secondary);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-right {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-secondary);
}


/* ─────────────────────────────────────────────
   11. SCROLL ANIMATIONS
   ───────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger delays for sequenced reveals */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }


/* ─────────────────────────────────────────────
   12. KEYFRAME ANIMATIONS
   ───────────────────────────────────────────── */

/* Pulsing status dot */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.5);
    opacity: 0.5;
  }
}

/* Copper shimmer gradient for hero title <em> */
@keyframes shimmer {
  0% {
    background-position: 200% center;
  }
  100% {
    background-position: -200% center;
  }
}

/* Subtle floating motion for decorative elements */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}


/* ─────────────────────────────────────────────
   13. RESPONSIVE — TABLET (≤ 1024px)
   ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-container {
    gap: var(--sp-6);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    gap: var(--sp-6);
  }

  .case-study {
    gap: var(--sp-4);
    padding: var(--sp-5);
  }
}


/* ─────────────────────────────────────────────
   14. RESPONSIVE — MOBILE (≤ 768px)
   ───────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Navigation */
  .nav-links,
  .nav-actions {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  /* Section spacing */
  .about,
  .skills,
  .work,
  .philosophy,
  .contact {
    padding: var(--sp-10) 0;
  }

  /* Section typography scale-down */
  .section-title {
    font-size: clamp(1.8rem, 5vw, 2.4rem);
  }

  .section-subtitle {
    font-size: 0.95rem;
  }

  /* Hero */
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
    padding-top: 100px;
    padding-bottom: var(--sp-6);
  }

  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
  }

  .stat-card {
    flex: 1 1 calc(50% - 6px);
    min-width: 0;
  }

  .stat-number {
    font-size: clamp(1.6rem, 6vw, 2rem);
  }

  h1.hero-title {
    font-size: clamp(2rem, 7vw, 3rem);
  }

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

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-5);
  }

  .info-row {
    grid-template-columns: 120px 1fr;
    gap: var(--sp-2);
  }

  /* Skills */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Case studies */
  .case-study {
    grid-template-columns: 1fr;
    gap: var(--sp-3);
    padding: var(--sp-4);
  }

  .case-bottom {
    grid-template-columns: 1fr;
    gap: var(--sp-3);
  }

  .case-title {
    font-size: 1.35rem;
  }

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

  /* Footer */
  .footer-container {
    flex-direction: column;
    gap: var(--sp-1);
    text-align: center;
  }
}


/* ─────────────────────────────────────────────
   15. LARGE SCREENS (≥ 1440px)
   ───────────────────────────────────────────── */
@media (min-width: 1440px) {
  .section-container {
    max-width: 1200px;
  }
}


/* ─────────────────────────────────────────────
   16. REDUCED MOTION PREFERENCE
   ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-up {
    opacity: 1;
    transform: none;
  }
}