/* ── Variables ─────────────────────────────────────────────────────── */
:root {
  --primary:       #353535;
  --primary-light: #404040;
  --primary-dark:  #2a2a2a;
  --secondary:     #D9D9D9;
  --accent:        #D52E37;
  --accent-hover:  #E8424B;
  --accent-glow:   rgba(213, 46, 55, 0.18);
  --card-bg:       #2e2e2e;
  --border:        rgba(217, 217, 217, 0.1);
  --transition:    0.3s ease;
  --radius:        10px;
}

/* ── Font ──────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Space Grotesk';
  src: url('assets/fonts/SpaceGrotesk-VariableFont_wght.ttf') format('truetype');
  font-weight: 100 900;
  font-display: swap;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  background-color: var(--primary);
  color: var(--secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a   { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul  { list-style: none; }

/* ── Navbar ────────────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 68px;
  background: rgba(53, 53, 53, 0.80);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(42, 42, 42, 0.96);
  box-shadow: 0 4px 24px rgba(0,0,0,.35);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img { height: 72px; transition: opacity var(--transition); }
.nav-logo:hover img { opacity: .75; }

.nav-links {
  display: flex;
  gap: 36px;
}
.nav-link {
  font-size: .93rem;
  font-weight: 500;
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-link:hover,
.nav-link.active        { color: var(--accent); }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Buttons ───────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  letter-spacing: .02em;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-full { width: 100%; }

/* ── Accent color ──────────────────────────────────────────────────── */
.accent { color: var(--accent); }

/* ── Scroll reveal ─────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Hero ──────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  max-width: 1100px;
  margin: 0 auto;
  padding: 110px 28px 80px;
  display: flex;
  align-items: center;
  gap: 64px;
}

.hero-content { flex: 1; }

.hero-greeting {
  font-size: .85rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero-name {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.03em;
  margin-bottom: 14px;
}
.hero-title {
  font-size: clamp(1.15rem, 2.8vw, 1.7rem);
  font-weight: 400;
  color: var(--secondary);
  opacity: .8;
  margin-bottom: 22px;
  min-height: 2.2rem;
}
/* Typewriter cursor */
#typewriter::after {
  content: '|';
  color: var(--accent);
  animation: blink .65s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-description {
  max-width: 480px;
  font-size: 1.05rem;
  opacity: .72;
  line-height: 1.75;
  margin-bottom: 38px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero visual */
.hero-visual {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-ring {
  width: 290px; height: 290px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 12px var(--accent-glow), 0 0 60px rgba(213, 46, 55, .12);
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
.hero-logo { width: 72%; height: 72%; object-fit: contain; }

/* ── Sections (commun) ─────────────────────────────────────────────── */
.section { padding: 110px 28px; }

.section-container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -.03em;
  margin-bottom: 64px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -14px; left: 0;
  width: 44px; height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* ── About ─────────────────────────────────────────────────────────── */
.about { background: var(--primary-dark); }

.about-content { max-width: 720px; }

.about-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  opacity: .82;
  margin-bottom: 18px;
}

.about-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin: 36px 0;
  padding: 28px 32px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.info-item   { display: flex; flex-direction: column; gap: 5px; }
.info-label  { font-size: .75rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: .1em; }
.info-value  { font-size: .95rem; opacity: .9; }

/* ── Skills ────────────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(0,0,0,.3);
}
.skill-icon {
  color: var(--accent);
  margin-bottom: 18px;
  opacity: .85;
}
.skill-cat-title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 16px;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(213, 46, 55, .08);
  border: 1px solid rgba(213, 46, 55, .22);
  color: var(--secondary);
  border-radius: 20px;
  font-size: .88rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition);
}
.tag:hover { background: rgba(213, 46, 55, .18); border-color: var(--accent); }
.tag-sm { padding: 4px 10px; font-size: .8rem; }

/* ── Projects ──────────────────────────────────────────────────────── */
.projects { background: var(--primary-dark); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,.35);
}
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}
.project-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  opacity: .35;
  line-height: 1;
}
.project-links { display: flex; gap: 12px; }
.icon-link {
  color: var(--secondary);
  opacity: .55;
  display: flex;
  align-items: center;
  transition: opacity var(--transition), color var(--transition);
}
.icon-link:hover { opacity: 1; color: var(--accent); }

.project-title {
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 12px;
}
.project-description {
  font-size: .95rem;
  opacity: .72;
  line-height: 1.72;
  flex: 1;
  margin-bottom: 20px;
}
.project-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── Contact ───────────────────────────────────────────────────────── */
.contact-intro {
  font-size: 1.05rem;
  opacity: .75;
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 48px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--secondary);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.3);
}

.contact-card-icon {
  flex: 0 0 auto;
  color: var(--accent);
  opacity: .85;
  display: flex;
}

.contact-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.contact-card-label {
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.contact-card-value {
  font-size: .95rem;
  opacity: .85;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-card-arrow {
  flex: 0 0 auto;
  opacity: .3;
  transition: opacity var(--transition), transform var(--transition);
}
.contact-card:hover .contact-card-arrow {
  opacity: 1;
  transform: translate(3px, -3px);
}

/* ── Footer ────────────────────────────────────────────────────────── */
.footer {
  background: var(--primary-dark);
  border-top: 1px solid var(--border);
  padding: 32px 28px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo { height: 52px; opacity: .6; }
.footer-copy  { font-size: .85rem; opacity: .45; }

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero { gap: 40px; }
  .hero-ring { width: 220px; height: 220px; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(42, 42, 42, .98);
    backdrop-filter: blur(14px);
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform .35s ease, opacity .35s ease;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links li { padding: 0 28px; }
  .nav-link {
    display: block;
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }
  .nav-link::after { display: none; }

  .hero {
    flex-direction: column-reverse;
    padding-top: 120px;
    text-align: center;
    gap: 36px;
  }
  .hero-ctas        { justify-content: center; }
  .hero-description { margin: 0 auto 36px; }
  .hero-ring        { width: 180px; height: 180px; }

  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: 80px 20px; }
  .hero     { padding: 100px 20px 60px; }
  .hero-ctas { flex-direction: column; }
  .btn { width: 100%; }
}