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

:root {
  --bg:        #0b0b12;
  --bg-alt:    #0f0f1a;
  --card:      #13131f;
  --card-hover:#181828;
  --border:    #1e1e32;
  --accent:    #4f6ef7;
  --accent-2:  #7c3aed;
  --text:      #e4e4f0;
  --text-2:    #8888aa;
  --text-3:    #55556a;
  --green:     #22c55e;
  --radius:    14px;
  --radius-sm: 8px;
  --shadow:    0 4px 32px rgba(0,0,0,.45);
  --trans:     .2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background var(--trans), backdrop-filter var(--trans);
}
.nav.scrolled {
  background: rgba(11,11,18,.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.5px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--trans);
}
.nav-links a:hover { color: var(--text); }
.btn-nav {
  padding: 8px 18px;
  background: var(--accent);
  color: #fff !important;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: opacity var(--trans) !important;
}
.btn-nav:hover { opacity: .85; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--trans);
}

/* =============================================
   ACCENT & GRADIENT TEXT
   ============================================= */
.accent { color: var(--accent); }
.gradient-text {
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 70% 30%, rgba(79,110,247,.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(124,58,237,.08) 0%, transparent 50%);
  pointer-events: none;
}
.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(79,110,247,.12);
  border: 1px solid rgba(79,110,247,.3);
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-2);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

/* BUTTONS */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: .95rem;
  border-radius: var(--radius-sm);
  transition: transform var(--trans), box-shadow var(--trans), opacity var(--trans);
  box-shadow: 0 4px 20px rgba(79,110,247,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79,110,247,.5);
}
.btn-primary.btn-large { padding: 16px 32px; font-size: 1rem; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  font-size: .95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: color var(--trans), border-color var(--trans);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-3); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  background: transparent;
  color: var(--accent);
  font-weight: 600;
  font-size: .9rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(79,110,247,.4);
  transition: background var(--trans), border-color var(--trans);
  margin-top: 20px;
}
.btn-outline:hover { background: rgba(79,110,247,.1); border-color: var(--accent); }

.arrow { transition: transform var(--trans); }
.btn-primary:hover .arrow,
.btn-outline:hover .arrow { transform: translateX(3px); }

/* HERO STATS */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
}
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 1.6rem; font-weight: 800; letter-spacing: -.02em; }
.stat-label { font-size: .78rem; color: var(--text-2); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* =============================================
   SECTIONS
   ============================================= */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(79,110,247,.1);
  border: 1px solid rgba(79,110,247,.25);
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 520px;
  margin: 0 auto;
}

/* =============================================
   PROJECT CARDS
   ============================================= */
.project-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--border);
}
.project-card:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.project-card.reverse { direction: rtl; }
.project-card.reverse > * { direction: ltr; }

.project-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(79,110,247,.08);
  border: 1px solid rgba(79,110,247,.2);
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .4px;
  margin-bottom: 14px;
}
.project-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -.025em;
  margin-bottom: 14px;
  line-height: 1.2;
}
.project-desc {
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 20px;
  font-size: .95rem;
}
.project-features {
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.project-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .9rem;
  color: var(--text-2);
}
.check { color: var(--green); flex-shrink: 0; font-weight: 700; }
.check-blue { color: var(--accent); flex-shrink: 0; font-weight: 700; }

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  padding: 4px 12px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 500;
  color: var(--text-2);
}

/* =============================================
   GALLERIES
   ============================================= */
.project-gallery {
  position: sticky;
  top: 88px;
}
.gallery-main {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}
.gallery-img {
  display: none;
  width: 100%;
  height: auto;
  cursor: zoom-in;
}
.gallery-img.active {
  display: block;
  animation: fadeImg .3s ease;
}
@keyframes fadeImg {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.gallery-thumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.thumb {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans);
  flex: 1;
  min-width: 70px;
  max-width: 100px;
}
.thumb img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  object-position: top;
  border-radius: 4px;
}
.thumb span {
  font-size: .68rem;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.thumb.active, .thumb:hover {
  border-color: var(--accent);
  background: var(--card-hover);
}
.thumb.active span { color: var(--accent); }

.project-gallery.single .gallery-thumbs { display: none; }

/* =============================================
   SKILLS GRID
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color var(--trans), transform var(--trans);
}
.skill-card:hover {
  border-color: rgba(79,110,247,.4);
  transform: translateY(-3px);
}
.skill-icon { font-size: 1.8rem; margin-bottom: 14px; }
.skill-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.skill-card p { font-size: .88rem; color: var(--text-2); line-height: 1.6; }

/* =============================================
   À PROPOS
   ============================================= */
.about-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 56px;
  max-width: 720px;
  margin: 0 auto;
}
.about-photo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}
.about-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  border: 3px solid var(--border);
  box-shadow: 0 0 0 6px rgba(79,110,247,.1);
  display: block;
}
.about-name {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -.03em;
  margin: 0 0 4px;
}
.about-role {
  font-size: .95rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
}
.about-bio {
  font-size: .92rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 14px;
  max-width: 520px;
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  justify-content: center;
}
.about-tags span {
  padding: 5px 13px;
  background: rgba(79,110,247,.08);
  border: 1px solid rgba(79,110,247,.2);
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent);
}

@media (max-width: 900px) {
  .about-card {
    padding: 36px 28px;
  }
  .about-photo { width: 130px; height: 130px; }
}

/* =============================================
   CTA SECTION
   ============================================= */
.section-cta { background: var(--bg); }
.cta-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 64px;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(79,110,247,.2) 0%, transparent 70%);
  pointer-events: none;
}
.cta-badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.3);
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--green);
  letter-spacing: .4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.cta-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 16px;
}
.cta-desc {
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 28px;
  font-size: .97rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.cta-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
  text-align: left;
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}
.cta-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9rem;
  color: var(--text-2);
}
.cta-sub {
  margin-top: 14px;
  font-size: .8rem;
  color: var(--text-3);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}
.footer-text { font-size: .88rem; color: var(--text-2); }
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: .88rem;
  color: var(--text-2);
  transition: color var(--trans);
}
.footer-links a:hover { color: var(--text); }
.footer-copy {
  font-size: .78rem;
  color: var(--text-3);
  text-align: center;
}

/* =============================================
   LIGHTBOX
   ============================================= */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.9);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.lightbox.open { display: flex; }
.lightbox-img {
  max-width: 90vw;
  max-height: 88vh;
  border-radius: var(--radius);
  box-shadow: 0 0 60px rgba(0,0,0,.8);
  object-fit: contain;
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  color: #fff;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: background var(--trans);
}
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255,255,255,.2); }
.lightbox-close { top: 20px; right: 20px; font-size: 1rem; }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .project-card,
  .project-card.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 36px;
  }
  .project-gallery { position: static; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(11,11,18,.97);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 20px;
  }
  .hero-stats { gap: 20px; }
  .cta-card { padding: 40px 24px; }
}

@media (max-width: 600px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
  .stat-divider { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .gallery-thumbs { gap: 6px; }
  .thumb { min-width: 55px; }
}