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

:root{
  --clr-bg:#fafaf9;
  --clr-surface:#ffffff;
  --clr-alt:#f1f0eb;
  --clr-primary:#2d3a3a;
  --clr-accent:#b87333;
  --clr-accent-light:#d4a276;
  --clr-text:#2d3a3a;
  --clr-text-light:#5f6b6b;
  --clr-border:#e0ddd5;
  --font-heading:'Playfair Display',Georgia,serif;
  --font-body:'Inter',system-ui,sans-serif;
  --max-width:1100px;
  --transition:0.3s ease;
}

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

body{
  font-family:var(--font-body);
  background:var(--clr-bg);
  color:var(--clr-text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

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

.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}

.section{padding:6rem 0}
.section-alt{background:var(--clr-alt)}

.section-title{
  font-family:var(--font-heading);
  font-size:2.25rem;
  font-weight:700;
  text-align:center;
  margin-bottom:3.5rem;
  position:relative;
}
.section-title::after{
  content:'';
  display:block;
  width:60px;height:3px;
  background:var(--clr-accent);
  margin:0.75rem auto 0;
  border-radius:2px;
}

/* ─── Navbar ─── */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(250,250,249,0.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--clr-border);
  transition:transform var(--transition),box-shadow var(--transition);
}
#navbar.hidden{transform:translateY(-100%)}
#navbar.scrolled{box-shadow:0 2px 20px rgba(0,0,0,0.06)}

.nav-container{
  max-width:var(--max-width);margin:0 auto;padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;height:64px;
}

.nav-logo{
  font-family:var(--font-heading);
  font-size:1.4rem;font-weight:700;color:var(--clr-primary);
}
.nav-logo .dot{color:var(--clr-accent)}

.nav-links{list-style:none;display:flex;gap:2rem}
.nav-links a{
  color:var(--clr-text-light);font-size:0.9rem;font-weight:500;
  letter-spacing:0.02em;transition:color var(--transition);
  position:relative;
}
.nav-links a::after{
  content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;
  background:var(--clr-accent);transition:width var(--transition);
}
.nav-links a:hover{color:var(--clr-primary)}
.nav-links a:hover::after{width:100%}

.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:4px}
.nav-toggle span{
  display:block;width:24px;height:2px;background:var(--clr-primary);
  margin:5px 0;transition:var(--transition);border-radius:2px;
}

/* ─── Hero ─── */
#hero{
  min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  padding:6rem 1.5rem 4rem;
  background:linear-gradient(170deg,var(--clr-bg) 0%,var(--clr-alt) 100%);
  position:relative;overflow:hidden;
}
#hero::before{
  content:'';position:absolute;top:-40%;right:-20%;
  width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(184,115,51,0.06) 0%,transparent 70%);
  pointer-events:none;
}

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

.hero-greeting{
  font-size:1rem;font-weight:500;letter-spacing:0.15em;
  text-transform:uppercase;color:var(--clr-accent);margin-bottom:0.75rem;
}

.hero-name{
  font-family:var(--font-heading);font-size:clamp(3rem,8vw,5.5rem);
  font-weight:700;line-height:1.1;margin-bottom:0.5rem;
}

.hero-tagline{
  font-size:1.25rem;font-weight:500;color:var(--clr-text-light);
  margin-bottom:1.25rem;
}

.hero-description{
  font-size:1.05rem;color:var(--clr-text-light);max-width:560px;
  margin:0 auto 2.5rem;line-height:1.7;
}

.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* ─── Buttons ─── */
.btn{
  display:inline-block;padding:0.8rem 2rem;border-radius:6px;
  font-size:0.95rem;font-weight:600;cursor:pointer;
  transition:all var(--transition);border:2px solid transparent;
  letter-spacing:0.02em;
}
.btn-primary{
  background:var(--clr-primary);color:#fff;border-color:var(--clr-primary);
}
.btn-primary:hover{background:var(--clr-accent);border-color:var(--clr-accent);color:#fff}

.btn-outline{
  background:transparent;color:var(--clr-primary);
  border-color:var(--clr-primary);
}
.btn-outline:hover{background:var(--clr-primary);color:#fff}
.btn-full{width:100%}

/* ─── Scroll Indicator ─── */
.scroll-indicator{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  animation:bounce 2s infinite;
}
.mouse{
  width:26px;height:40px;border:2px solid var(--clr-text-light);
  border-radius:14px;position:relative;opacity:0.5;
}
.wheel{
  width:4px;height:8px;background:var(--clr-text-light);
  border-radius:2px;position:absolute;top:8px;left:50%;transform:translateX(-50%);
  animation:scroll-wheel 1.5s infinite;
}

@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}
@keyframes scroll-wheel{0%{opacity:1;transform:translateX(-50%) translateY(0)}100%{opacity:0;transform:translateX(-50%) translateY(12px)}}

/* ─── About ─── */
.about-grid{display:grid;grid-template-columns:2fr 1fr;gap:3rem;align-items:start}
.about-text p{margin-bottom:1rem;color:var(--clr-text-light)}
.about-text p:first-of-type::first-letter{
  font-family:var(--font-heading);font-size:3.2rem;float:left;
  line-height:1;margin-right:0.5rem;color:var(--clr-accent);font-weight:700;
}

.about-stats{display:flex;flex-direction:column;gap:1.25rem}
.stat-card{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:10px;padding:1.5rem;text-align:center;
  transition:transform var(--transition),box-shadow var(--transition);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,0.08)}
.stat-number{display:block;font-family:var(--font-heading);font-size:2.25rem;font-weight:700;color:var(--clr-accent)}
.stat-label{display:block;font-size:0.85rem;color:var(--clr-text-light);margin-top:0.25rem;font-weight:500}

/* ─── Skills ─── */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}

.skill-category{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:10px;padding:1.75rem;transition:transform var(--transition),box-shadow var(--transition);
}
.skill-category:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,0.08)}

.skill-category-title{
  font-family:var(--font-heading);font-size:1.1rem;font-weight:600;
  margin-bottom:1rem;color:var(--clr-primary);position:relative;padding-bottom:0.75rem;
}
.skill-category-title::after{
  content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;
  background:var(--clr-accent);border-radius:2px;
}

.skill-list{list-style:none}
.skill-list li{
  padding:0.4rem 0;font-size:0.92rem;color:var(--clr-text-light);
  border-bottom:1px solid var(--clr-border);
}
.skill-list li:last-child{border-bottom:none}
.skill-list li::before{
  content:'';display:inline-block;width:6px;height:6px;
  background:var(--clr-accent);border-radius:50%;margin-right:0.6rem;
  vertical-align:middle;
}

/* ─── Timeline ─── */
.timeline{position:relative;padding-left:2.5rem}
.timeline::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:2px;
  background:var(--clr-border);
}

.timeline-item{position:relative;margin-bottom:2.5rem}
.timeline-item:last-child{margin-bottom:0}

.timeline-marker{
  position:absolute;left:-2.5rem;top:0.25rem;width:14px;height:14px;
  border-radius:50%;background:var(--clr-surface);border:2px solid var(--clr-border);
  transform:translateX(-6px);transition:border-color var(--transition),background var(--transition);
}
.timeline-item--highlight .timeline-marker,
.timeline-item:hover .timeline-marker{
  border-color:var(--clr-accent);background:var(--clr-accent);
}

.timeline-content{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:10px;padding:1.75rem;transition:box-shadow var(--transition),transform var(--transition);
}
.timeline-item:hover .timeline-content{
  box-shadow:0 8px 24px rgba(0,0,0,0.08);transform:translateX(4px)
}

.timeline-date{
  display:inline-block;font-size:0.8rem;font-weight:600;
  color:var(--clr-accent);background:rgba(184,115,51,0.1);
  padding:0.2rem 0.7rem;border-radius:20px;margin-bottom:0.75rem;
}
.timeline-title{font-family:var(--font-heading);font-size:1.2rem;font-weight:600;margin-bottom:0.2rem}
.timeline-institution{font-size:0.9rem;color:var(--clr-text-light);font-weight:500;margin-bottom:0.75rem}
.timeline-content p{font-size:0.92rem;color:var(--clr-text-light);line-height:1.65}

/* ─── Projects ─── */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}

.project-card{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:10px;padding:2rem;
  transition:transform var(--transition),box-shadow var(--transition);
}
.project-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(0,0,0,0.1)}

.project-icon{margin-bottom:1.25rem;color:var(--clr-accent)}

.project-title{font-family:var(--font-heading);font-size:1.2rem;font-weight:600;margin-bottom:0.75rem}

.project-description{font-size:0.92rem;color:var(--clr-text-light);margin-bottom:1.25rem;line-height:1.65}

.project-tags{display:flex;flex-wrap:wrap;gap:0.5rem}
.tag{
  font-size:0.75rem;font-weight:600;
  padding:0.25rem 0.65rem;border-radius:20px;
  background:rgba(184,115,51,0.1);color:var(--clr-accent);
  letter-spacing:0.02em;
}

/* ─── Contact ─── */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}

.contact-intro{font-size:1.05rem;color:var(--clr-text-light);margin-bottom:2rem;line-height:1.7}

.contact-details{display:flex;flex-direction:column;gap:1.25rem}
.contact-item{display:flex;align-items:center;gap:0.75rem;font-size:0.95rem;color:var(--clr-text-light)}
.contact-item svg{color:var(--clr-accent);flex-shrink:0}

.contact-form{display:flex;flex-direction:column;gap:1.25rem}

.form-group{display:flex;flex-direction:column;gap:0.35rem}
.form-group label{font-size:0.85rem;font-weight:600;color:var(--clr-text-light);letter-spacing:0.02em}

.form-group input,
.form-group textarea{
  padding:0.75rem 1rem;border:1px solid var(--clr-border);border-radius:6px;
  font-family:var(--font-body);font-size:0.95rem;color:var(--clr-text);
  background:var(--clr-surface);transition:border-color var(--transition),box-shadow var(--transition);
  outline:none;
}
.form-group input:focus,
.form-group textarea:focus{
  border-color:var(--clr-accent);box-shadow:0 0 0 3px rgba(184,115,51,0.15);
}

/* ─── Footer ─── */
.footer{
  background:var(--clr-primary);color:rgba(255,255,255,0.7);
  text-align:center;padding:2rem 0;font-size:0.85rem;
}

/* ─── Animations ─── */
.fade-in{animation:fadeIn 1s ease forwards}
@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

.reveal{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.reveal.active{opacity:1;transform:translateY(0)}

/* ─── Responsive ─── */
@media(max-width:900px){
  .about-grid{grid-template-columns:1fr}
  .about-stats{flex-direction:row;flex-wrap:wrap;justify-content:center}
  .stat-card{flex:1;min-width:140px}
  .contact-grid{grid-template-columns:1fr}
}

@media(max-width:768px){
  .nav-links{display:none}
  .nav-toggle{display:block}

  .nav-links.open{
    display:flex;flex-direction:column;position:absolute;
    top:64px;left:0;right:0;background:var(--clr-surface);
    padding:1.5rem;gap:1.25rem;border-bottom:1px solid var(--clr-border);
    box-shadow:0 8px 24px rgba(0,0,0,0.08);
  }

  .section{padding:4rem 0}
  .section-title{font-size:1.75rem;margin-bottom:2.5rem}
  .hero-name{font-size:clamp(2.5rem,10vw,4rem)}
  .timeline{padding-left:2rem}
  .timeline-marker{left:-2rem}
}

@media(max-width:480px){
  .hero-cta{flex-direction:column;align-items:center}
  .btn{width:100%;text-align:center}
}