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

:root {
  --blue: #1a3a6b;
  --blue-light: #2a5298;
  --blue-glow: rgba(26, 58, 107, 0.15);
  --bg: #fafaf9;
  --bg-alt: #f0efed;
  --text: #1a1a1a;
  --text-muted: #6b6b6b;
  --text-light: #999;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

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

/* ===== Custom Cursor ===== */
.custom-cursor {
  position: fixed;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--blue);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease, background 0.2s ease;
  mix-blend-mode: difference;
}

.custom-cursor.hovering {
  width: 40px;
  height: 40px;
  background: var(--blue-light);
}

/* ===== Cursor Glow ===== */
.cursor-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

body:hover .cursor-glow {
  opacity: 1;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 3rem;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.navbar.visible {
  transform: translateY(0);
  opacity: 1;
}

.nav-logo {
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--blue);
  letter-spacing: -0.02em;
  cursor: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  cursor: none;
}

.nav-links a:hover {
  color: var(--blue);
}

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.4rem 0.8rem;
  border: 2px solid var(--blue);
  border-radius: 6px;
  background: transparent;
  color: var(--blue);
  cursor: none;
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.lang-toggle:hover {
  background: var(--blue);
  color: var(--white);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 3rem;
  position: relative;
  overflow: hidden;
}

/* Mesh gradient blobs */
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  z-index: 0;
  will-change: transform;
}

.hero-blob-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26, 58, 107, 0.35) 0%, transparent 70%);
  top: 10%;
  left: 15%;
  animation: blobFloat1 18s ease-in-out infinite;
}

.hero-blob-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(42, 82, 152, 0.3) 0%, transparent 70%);
  top: 50%;
  right: 10%;
  animation: blobFloat2 22s ease-in-out infinite;
}

.hero-blob-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(26, 58, 107, 0.2) 0%, transparent 70%);
  bottom: 10%;
  left: 40%;
  animation: blobFloat3 20s ease-in-out infinite;
}

@keyframes blobFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(40px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(30px, 40px) scale(1.08); }
}

@keyframes blobFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(-50px, 30px) scale(1.1); }
  50% { transform: translate(30px, -40px) scale(0.92); }
  75% { transform: translate(-20px, -20px) scale(1.05); }
}

@keyframes blobFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, 40px) scale(1.08); }
  50% { transform: translate(-40px, -20px) scale(0.95); }
  75% { transform: translate(20px, -30px) scale(1.03); }
}

.hero-content {
  text-align: center;
  max-width: 800px;
  position: relative;
  z-index: 1;
  will-change: transform;
}

.hero-name {
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.hero-name-line {
  display: block;
  overflow: hidden;
}

/* Text reveal animation */
.hero-name-line span {
  display: inline-block;
  transform: translateY(110%);
  animation: textReveal 0.8s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

.hero-name-line:nth-child(2) span {
  animation-delay: 0.15s;
}

@keyframes textReveal {
  to { transform: translateY(0); }
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.5s;
}

.hero-links {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.7s;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.1);
  color: var(--text);
  transition: all var(--transition);
  cursor: none;
}

.hero-link:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 24px rgba(26, 58, 107, 0.15);
}

/* Hero language toggle */
.hero-lang-toggle {
  position: absolute;
  top: 2rem;
  right: 3rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 0.9s;
}

/* Scroll indicator — centred with margins, since fadeInUp owns `transform` */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 0;
  right: 0;
  width: fit-content;
  margin: 0 auto;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 1.1s;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: rotate(45deg) translate(0, 0); }
  50% { opacity: 1; transform: rotate(45deg) translate(5px, 5px); }
}

/* ===== Sections ===== */
.section {
  padding: 6rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-alt {
  max-width: 100%;
  background: var(--bg-alt);
}

.section-alt > * {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 3rem;
}

/* ===== Featured Project ===== */
.featured-project {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin: 2rem 0 4rem;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.4s ease;
}

.featured-project::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
}

.featured-project:hover {
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.08);
}

.featured-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blue);
  background: var(--blue-glow);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.featured-project h3 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.featured-desc {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.featured-points {
  list-style: none;
  display: grid;
  gap: 0.6rem;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.featured-points li {
  position: relative;
  padding-left: 1.25rem;
}

.featured-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.featured-tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 100px;
  color: var(--text-muted);
}

.featured-link {
  display: inline-block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
  background: var(--blue);
  padding: 0.75rem 1.5rem;
  border-radius: 100px;
  transition: all var(--transition);
  cursor: none;
}

.featured-link:hover {
  background: var(--blue-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 58, 107, 0.2);
}

.featured-visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.fv-sea { fill: var(--bg-alt); }
.fv-land { fill: var(--white); stroke: rgba(26, 58, 107, 0.25); stroke-width: 1.5; }
.fv-river { fill: none; stroke: rgba(42, 82, 152, 0.35); stroke-width: 2; stroke-linecap: round; }
.fv-label { fill: var(--white); stroke: rgba(26, 58, 107, 0.45); stroke-width: 1.2; }
.fv-active { fill: var(--blue); stroke: var(--blue); }
.fv-pulse { fill: none; stroke: var(--blue-light); stroke-width: 1.5; transform-box: fill-box; transform-origin: center; animation: fvPulse 2.4s ease-out infinite; }
.fv-panel { fill: var(--white); stroke: rgba(0, 0, 0, 0.08); }
.fv-text-strong { fill: var(--text); }
.fv-text { fill: rgba(0, 0, 0, 0.1); }
.fv-close { stroke: var(--text-muted); stroke-width: 1.5; stroke-linecap: round; }
.fv-image { fill: var(--blue-light); opacity: 0.25; }
.fv-mountain { fill: var(--blue); opacity: 0.55; }
.fv-nav { fill: var(--white); opacity: 0.9; }
.fv-counter { font-family: var(--font-mono); font-size: 9px; font-weight: 700; fill: var(--text-muted); }

@keyframes fvPulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.5, 2.4); opacity: 0; }
}

/* ===== Projects Grid ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.project-card {
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  padding: 2rem;
  cursor: none;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.4s ease;
  transform-style: preserve-3d;
  will-change: transform;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card:hover {
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.1);
}

/* Tilt shine effect */
.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.3) 45%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 55%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

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

.project-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-light);
}

.project-lang {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.project-lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.project-stars {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.projects-status {
  grid-column: 1 / -1;
  color: var(--text-muted);
}

.projects-status a {
  color: var(--blue);
  font-weight: 600;
}

.projects-more {
  display: inline-block;
  font-weight: 600;
  color: var(--blue);
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: none;
}

.projects-more:hover {
  letter-spacing: 0.02em;
}

/* Loading skeleton */
.project-skeleton {
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  padding: 2rem;
  min-height: 180px;
}

.skeleton-line {
  height: 14px;
  background: linear-gradient(90deg, var(--bg-alt) 25%, rgba(0,0,0,0.04) 50%, var(--bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.skeleton-line:first-child {
  width: 60%;
  height: 18px;
}

.skeleton-line:nth-child(2) { width: 100%; }
.skeleton-line:nth-child(3) { width: 80%; }
.skeleton-line:last-child { width: 40%; margin-top: 1rem; }

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== Journey ===== */
.journey-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.journey-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 0.4s ease;
  cursor: none;
  transform-style: preserve-3d;
  will-change: transform;
}

.journey-card:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}

.journey-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.journey-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.journey-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== Stack ===== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2.5rem;
}

.stack-category h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stack-tag {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 100px;
  color: var(--text);
  transition: all var(--transition);
  cursor: none;
}

.stack-tag:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26, 58, 107, 0.1);
}

/* ===== Contact ===== */
.contact-text {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 100px;
  transition: all var(--transition);
  cursor: none;
}

.contact-link:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 58, 107, 0.1);
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 2rem 3rem;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Language transition ===== */
[data-fr][data-en] {
  transition: opacity 0.25s ease;
}

.lang-switching [data-fr][data-en] {
  opacity: 0;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .featured-project {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .featured-visual {
    order: -1;
  }
}

/* Native cursor on small screens, and when motion is reduced
   (the custom one trails the mouse) */
@media (max-width: 768px), (prefers-reduced-motion: reduce) {
  body {
    cursor: auto;
  }

  .cursor-glow,
  .custom-cursor {
    display: none;
  }

  .hero-link,
  .featured-link,
  .project-card,
  .journey-card,
  .stack-tag,
  .contact-link,
  .projects-more,
  .nav-links a,
  .nav-logo {
    cursor: auto;
  }

  .lang-toggle {
    cursor: pointer;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .hero {
    padding: 2rem 1.5rem;
  }

  .hero-name {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .hero-lang-toggle {
    right: 1.5rem;
  }

  .section {
    padding: 4rem 1.5rem;
  }

  .section-alt {
    padding: 4rem 1.5rem;
  }

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

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

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

  .contact-links {
    flex-direction: column;
  }

  .featured-project {
    padding: 1.75rem;
  }
}

@media (max-width: 480px) {
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .nav-links a:not(:last-child):not(.lang-toggle) {
    display: none;
  }
}

/* ===== Reduced motion ===== */
/* Fades stay; anything that travels, loops or follows the mouse goes.
   Parallax, tilt and smooth scrolling are switched off in script.js. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-blob,
  .scroll-arrow,
  .skeleton-line,
  .fv-pulse {
    animation: none;
  }

  .fv-pulse {
    opacity: 0;
  }

  .hero-name-line span {
    transform: none;
    animation-name: fadeIn;
    animation-fill-mode: both;
  }

  .hero-tagline,
  .hero-links,
  .hero-lang-toggle,
  .scroll-indicator {
    animation-name: fadeIn;
  }

  .reveal {
    transform: none;
  }

  .hero-link:hover,
  .stack-tag:hover,
  .contact-link:hover,
  .featured-link:hover {
    transform: none;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}