/* ---------- Base ---------- */
:root{
  --black:#000;
  --white:#fff;
  --grey:#f5f5f5;
  --max-w:900px;
  --pad:min(7vw,96px);
  --header-offset:96px;
}

*{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--white);
  color:var(--black);
  font-family:'Poppins',-apple-system,BlinkMacSystemFont,sans-serif;
  font-weight:400;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

h1,h2{
  font-family:'Manrope',-apple-system,BlinkMacSystemFont,sans-serif;
  font-weight:500;
  letter-spacing:-0.02em;
  margin:0 0 24px 0;
  color:var(--black);
}

h1{font-size:clamp(2.2rem,5vw,3.4rem);line-height:1.05;}
h2{font-size:clamp(1.8rem,3.6vw,2.6rem);line-height:1.1;}

p{margin:0 0 20px 0;}

a{color:inherit;}

ul{margin:0;padding:0;}

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

.section{
  padding:80px var(--pad);
}
.section.alt{background:var(--grey);}

.section-inner{
  max-width:var(--max-w);
  margin:0 auto;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  background:var(--black);
  color:var(--white);
  text-decoration:none;
  border:none;
  cursor:pointer;
  border-radius:300px;
  padding:22px 34px;
  font-family:'Poppins',sans-serif;
  font-size:16px;
  font-weight:400;
  text-align:center;
  transition:opacity .2s ease;
}
.btn:hover{opacity:.82;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:28px var(--pad);
  background:var(--white);
}
.site-header .logo{
  font-family:'Manrope',sans-serif;
  font-weight:500;
  font-size:1.15rem;
  text-decoration:none;
  color:var(--black);
}
.desktop-nav{
  display:none;
  align-items:center;
  gap:2.4rem;
}
.desktop-nav a:not(.btn){
  text-decoration:none;
  color:var(--black);
  font-size:1rem;
}
.desktop-nav .btn{
  padding:16px 26px;
}

.menu-toggle{
  background:none;
  border:none;
  cursor:pointer;
  width:40px;
  height:24px;
  position:relative;
  padding:0;
}
.menu-toggle span{
  position:absolute;
  left:0;
  right:0;
  height:1px;
  background:var(--black);
  transition:all .25s ease;
}
.menu-toggle span:nth-child(1){top:2px;}
.menu-toggle span:nth-child(2){top:12px;}
.menu-toggle span:nth-child(3){top:22px;}
.menu-toggle.open span:nth-child(1){transform:translateY(10px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-10px) rotate(-45deg);}

/* ---------- Nav overlay ---------- */
.nav-overlay{
  position:fixed;
  inset:0;
  background:var(--grey);
  z-index:99;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2.2rem;
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
}
.nav-overlay.open{opacity:1;pointer-events:auto;}
.nav-overlay a{
  font-family:'Manrope',sans-serif;
  font-weight:500;
  font-size:clamp(1.8rem,5vw,2.6rem);
  text-decoration:none;
  color:var(--black);
}
.nav-overlay a.btn{
  margin-top:1rem;
  font-size:16px;
  font-weight:400;
  color:var(--white);
}

/* ---------- Hero ---------- */
#home,
#about,
#how-i-can-help,
#education{
  scroll-margin-top:var(--header-offset);
}

.hero{
  padding:60px var(--pad) 100px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  max-width:1100px;
  margin:0 auto;
  align-items:start;
}
.hero-copy h2{margin-bottom:14px;font-weight:700;}
.hero-copy h2 + h2{margin-top:26px;}
.hero-copy p{margin-top:28px;}
.hero-photo img{display:none;border-radius:2px;}
.hero-cta{margin-top:8px;text-align:center;}

.stats{
  max-width:1100px;
  margin:56px auto 0;
  list-style:none;
  display:grid;
  gap:18px;
}
.stats li{
  position:relative;
  padding-left:26px;
  font-size:1.05rem;
}
.stats li::before{
  content:'•';
  position:absolute;
  left:4px;
  top:0;
}

/* ---------- About ---------- */
.about-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:56px;
  align-items:start;
}
.about-photo img{border-radius:2px;}
.about-name{margin-top:20px;margin-bottom:0;}

/* ---------- Accordion ---------- */
.accordion-item{
  border-bottom:1px solid var(--black);
}
.accordion-item:first-child{border-top:1px solid var(--black);}
.accordion-trigger{
  width:100%;
  background:none;
  border:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:24px 0;
  font-family:'Poppins',sans-serif;
  font-size:1.15rem;
  font-weight:400;
  color:var(--black);
  text-align:left;
}
.accordion-icon{
  position:relative;
  width:18px;
  height:18px;
  flex:0 0 18px;
  margin-left:20px;
}
.accordion-icon::before,
.accordion-icon::after{
  content:'';
  position:absolute;
  background:var(--black);
  transition:transform .2s ease;
}
.accordion-icon::before{
  top:8px;left:0;width:18px;height:1px;
}
.accordion-icon::after{
  top:0;left:8px;width:1px;height:18px;
}
.accordion-item.open .accordion-icon::after{transform:scaleY(0);}

.accordion-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.accordion-panel-inner{
  padding:0 0 28px 0;
}
.accordion-panel-inner p{margin:0 0 16px 0;}
.accordion-panel-inner .support-label{
  font-weight:500;
  margin-bottom:14px;
}
.accordion-panel-inner ul{
  list-style:none;
  display:grid;
  gap:12px;
}
.accordion-panel-inner ul li{
  position:relative;
  padding-left:22px;
}
.accordion-panel-inner ul li::before{
  content:'•';
  position:absolute;
  left:4px;
}

/* ---------- Education list ---------- */
.edu-list{
  list-style:none;
  display:grid;
  gap:22px;
  margin-top:8px;
}
.edu-list li{font-size:1.05rem;}

/* ---------- Work with me ---------- */
.work-with-me{text-align:left;}
.work-with-me p{max-width:640px;}
.work-with-me-grid{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:28px;
}
.work-with-me-cta{width:100%;}
.work-with-me-cta .btn{width:100%;text-align:center;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--grey);
  padding:100px var(--pad) 70px;
}
.site-footer h1{margin-bottom:70px;}
.site-footer h3{
  font-family:'Manrope',sans-serif;
  font-weight:500;
  font-size:1.4rem;
  margin:0 0 24px 0;
}
.site-footer .contact-links{
  list-style:none;
  display:grid;
  gap:14px;
}
.site-footer .contact-links a{
  text-decoration:underline;
  font-size:1.05rem;
}
.site-footer .copyright{
  margin-top:80px;
  font-size:.85rem;
  opacity:.6;
}

/* ---------- Responsive ---------- */

/* Desktop: show horizontal nav, hero photo, side-by-side work-with-me */
@media (min-width:900px){
  .desktop-nav{display:flex;}
  .menu-toggle{display:none;}
  .hero-grid{grid-template-columns:1fr 1fr;}
  .hero-photo img{display:block;width:100%;}
  .hero-cta{margin-top:24px;}
  .about-grid{grid-template-columns:280px 1fr;}
  .work-with-me-grid{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:40px;
  }
  .work-with-me-grid > div:first-child{flex:1;}
  .work-with-me-cta{width:auto;flex:0 0 auto;}
  .work-with-me-cta .btn{width:auto;}
}

@media (max-width:760px){
  .about-photo{max-width:260px;}
  .section{padding:60px var(--pad);}
}