/* =========================================================
   Saad Umer — Portfolio Stylesheet
   Plain CSS3, no frameworks. Mobile-first, then scaled up
   with min-width media queries. Shared across index.html
   and every service detail page.
   ========================================================= */

:root{
  /* Brand colours */
  --primary:#3b82f6;
  --primary-dark:#2563eb;
  --primary-light:#93c5fd;
  --sky:#0ea5e9;

  /* Text */
  --ink:#0f172a;
  --ink-muted:#475569;
  --ink-soft:#94a3b8;

  /* Surfaces */
  --card:#f8fafc;
  --card-border:#e7ebf1;
  --surface:#eef2f7;
  --bg:#ffffff;

  /* Shape + elevation */
  --radius:0.85rem;
  --radius-sm:0.55rem;
  --shadow:0 1px 2px rgba(15,23,42,.05);
  --shadow-md:0 6px 18px rgba(15,23,42,.08);

  --ease:180ms ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
button{font:inherit;cursor:pointer;background:none;border:none;color:inherit;}

.container{max-width:72rem;margin:0 auto;padding:0 1.5rem;}
.container--narrow{max-width:46rem;}
section{padding:4.5rem 0;}
@media(min-width:640px){section{padding:6rem 0;}}

/* -------- Accessibility helpers -------- */
.skip-link{
  position:absolute;left:1rem;top:-3rem;background:var(--primary);color:#fff;
  padding:.65rem 1rem;border-radius:.5rem;z-index:100;font-weight:600;font-size:.9rem;
  transition:top .15s ease;
}
.skip-link:focus{top:1rem;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary-dark);outline-offset:2px;border-radius:.35rem;
}

/* -------- Typography -------- */
.eyebrow{
  font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary-dark);margin-bottom:.75rem;display:block;
}
h1,h2,h3{letter-spacing:-0.02em;font-weight:650;color:var(--ink);}
h1{font-size:2.1rem;line-height:1.15;}
h2{font-size:1.85rem;line-height:1.18;}
h3{font-size:1.1rem;}
@media(min-width:640px){ h1{font-size:2.7rem;} h2{font-size:2.1rem;} }
p{color:var(--ink-muted);}
.lead{font-size:1.08rem;line-height:1.7;}

.section-head{max-width:38rem;margin-bottom:2.75rem;}
.section-head p{margin-top:1rem;font-size:1.05rem;line-height:1.65;}
.section-alt{background:var(--card);}

/* -------- Buttons -------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.8rem 1.35rem;border-radius:.65rem;font-weight:600;font-size:.9rem;
  border:1px solid transparent;transition:background var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--card-border);}
.btn-secondary:hover{border-color:var(--primary);}
.btn-ghost{background:transparent;color:var(--primary-dark);}
.btn-ghost:hover{background:rgba(59,130,246,.08);}
.btn-block{width:100%;}

/* -------- Header / nav -------- */
header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--card-border);
}
nav.navbar{display:flex;align-items:center;justify-content:space-between;height:4rem;}
.brand{font-weight:700;font-size:1.02rem;}
.nav-links{display:none;gap:.15rem;align-items:center;}
.nav-links a{
  padding:.5rem .8rem;border-radius:.5rem;font-size:.88rem;font-weight:500;
  color:var(--ink-muted);transition:color var(--ease);
}
.nav-links a:hover, .nav-links a.active{color:var(--ink);}
.nav-links a.active{color:var(--primary-dark);}
.nav-right{display:none;align-items:center;gap:.15rem;}
.icon-btn{
  width:2.15rem;height:2.15rem;display:flex;align-items:center;justify-content:center;
  border-radius:.5rem;color:var(--ink-muted);transition:background var(--ease),color var(--ease);
}
.icon-btn:hover{background:rgba(59,130,246,.1);color:var(--primary-dark);}
.icon-btn--labelled{
  display:flex;align-items:center;gap:.6rem;width:auto;padding:.6rem .9rem;
  border:1px solid var(--card-border);border-radius:.6rem;font-size:.85rem;font-weight:500;color:var(--ink);
}
.hamburger{display:flex;width:2.5rem;height:2.5rem;align-items:center;justify-content:center;color:var(--ink);}
@media(min-width:880px){
  .nav-links{display:flex;}
  .nav-right{display:flex;}
  .hamburger{display:none;}
}
.mobile-menu{display:none;border-top:1px solid var(--card-border);background:#fff;}
.mobile-menu.open{display:block;}
.mobile-menu .container{padding:1rem 1.5rem;display:flex;flex-direction:column;gap:.15rem;}
.mobile-menu a{padding:.7rem .5rem;border-radius:.5rem;font-weight:500;color:var(--ink);}
.mobile-menu a:hover{background:var(--card);}
.mobile-social{display:flex;gap:.15rem;margin-top:.65rem;padding-top:.65rem;border-top:1px solid var(--card-border);}

/* -------- Homepage hero --------
   A single restrained top-of-page gradient wash, no blurred
   glow blobs, plain bordered portrait. */
.hero{position:relative;padding:3.5rem 0 4.5rem;}
.hero::before{
  content:"";position:absolute;inset:0 0 auto 0;height:22rem;z-index:0;
  background:linear-gradient(180deg, rgba(59,130,246,.06), transparent);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;gap:2.5rem;align-items:center;}
@media(min-width:960px){.hero-grid{grid-template-columns:.8fr 1.2fr;gap:4rem;}}
.portrait-wrap{display:flex;justify-content:center;}
@media(min-width:960px){.portrait-wrap{justify-content:flex-start;}}
.portrait{
  width:13rem;height:13rem;border-radius:1.25rem;object-fit:cover;
  border:1px solid var(--card-border);box-shadow:var(--shadow-md);
}
@media(min-width:640px){.portrait{width:15.5rem;height:15.5rem;}}
.hero-actions{display:flex;flex-wrap:wrap;gap:.65rem;margin-top:1.85rem;}
.hero h1{margin-top:.35rem;}
.hero .lead{margin-top:1.25rem;max-width:36rem;}

/* -------- Service page hero --------
   Same restrained-gradient approach as the homepage hero,
   scaled down, with a breadcrumb back-link. */
.page-hero{position:relative;padding:3rem 0 3rem;border-bottom:1px solid var(--card-border);background:var(--card);}
.page-hero::before{
  content:"";position:absolute;inset:0 0 auto 0;height:12rem;z-index:0;
  background:linear-gradient(180deg, rgba(59,130,246,.07), transparent);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:inline-flex;align-items:center;gap:.4rem;font-size:.85rem;font-weight:600;
  color:var(--ink-muted);margin-bottom:1.25rem;transition:color var(--ease);
}
.breadcrumb:hover{color:var(--primary-dark);}
.page-hero h1{max-width:34rem;margin-top:.35rem;}
.page-hero .lead{margin-top:1rem;max-width:34rem;}

/* -------- Cards -------- */
.grid{display:grid;gap:1.25rem;}
.grid-2{grid-template-columns:1fr;}
.grid-3{grid-template-columns:1fr;}
.grid-4{grid-template-columns:repeat(2,1fr);}
@media(min-width:640px){
  .grid-2{grid-template-columns:1fr 1fr;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media(min-width:960px){
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .grid-4{grid-template-columns:repeat(4,1fr);}
}
.card{
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);
  padding:1.5rem;transition:border-color var(--ease),box-shadow var(--ease);
}
.card:hover{box-shadow:var(--shadow);border-color:#d8e0ec;}
.card.flat:hover{box-shadow:none;border-color:var(--card-border);}
.card h3{margin-bottom:.4rem;}
.card p{font-size:.9rem;line-height:1.6;}
.card-icon{
  width:2.5rem;height:2.5rem;border-radius:.65rem;background:rgba(59,130,246,.1);
  color:var(--primary-dark);display:flex;align-items:center;justify-content:center;
  margin-bottom:.9rem;font-size:1.15rem;font-weight:700;flex-shrink:0;
}
.badge{
  font-size:.68rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:.28rem .65rem;border-radius:999px;border:1px solid rgba(59,130,246,.25);
  background:rgba(59,130,246,.06);color:var(--primary-dark);white-space:nowrap;
}
.card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:.75rem;}
.chip-row{display:flex;flex-wrap:wrap;gap:.5rem;}
.chip{
  background:#fff;border:1px solid var(--card-border);border-radius:.5rem;
  padding:.38rem .7rem;font-size:.78rem;font-weight:500;color:var(--ink-muted);
}
.chip.solid{background:var(--surface);border-color:transparent;}

/* -------- Info list --------
   Flat, hairline-divided alternative to bordered cards. */
.info-grid{display:grid;gap:1.5rem 2rem;grid-template-columns:1fr;}
@media(min-width:640px){.info-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:960px){.info-grid.cols-4{grid-template-columns:repeat(4,1fr);}}
.info-item{border-top:2px solid var(--card-border);padding-top:.9rem;}
.info-item h3{font-size:1rem;margin-bottom:.4rem;}
.info-item p{font-size:.89rem;line-height:1.6;}

/* -------- Timeline -------- */
.timeline{position:relative;}
.timeline-item{display:flex;gap:1.5rem;}
.timeline-rail{display:flex;flex-direction:column;align-items:center;}
.timeline-dot{width:.8rem;height:.8rem;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(59,130,246,.15);flex-shrink:0;}
.timeline-line{width:1px;flex:1;background:var(--card-border);}
.timeline-body{padding-bottom:2.75rem;}
.timeline-body li{display:flex;gap:.6rem;font-size:.94rem;color:var(--ink-muted);margin-bottom:.55rem;}
.timeline-body li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary-light);margin-top:.55rem;flex-shrink:0;}

.vision-list{display:grid;gap:.75rem;grid-template-columns:1fr;}
@media(min-width:640px){.vision-list{grid-template-columns:1fr 1fr;}}
.vision-item{
  display:flex;align-items:center;gap:.65rem;border:1px solid var(--card-border);
  border-radius:.65rem;padding:.85rem 1rem;font-size:.9rem;font-weight:500;background:#fff;
}
.vision-item svg{color:var(--primary);flex-shrink:0;}

/* -------- Projects section -------- */
.quote-box{text-align:center;border:1px dashed var(--card-border);border-radius:1rem;padding:2.25rem 1.5rem;background:var(--card);}
.quote-box p:first-child{font-weight:600;color:var(--ink);font-size:1.02rem;}
.quote-box p:last-child{margin-top:.5rem;}

.tech-group{margin-bottom:1.1rem;}
.tech-group:last-child{margin-bottom:0;}
.tech-group-label{font-size:.78rem;font-weight:600;color:var(--ink-soft);margin-bottom:.6rem;display:block;}

/* -------- Skills accordion --------
   Buttons toggle aria-expanded; JS animates max-height.
   Each category icon is a small custom line-art illustration
   (see index.html) rather than a text initial or emoji. */
.skills-accordion{display:flex;flex-direction:column;gap:.65rem;}
.skill-item{border:1px solid var(--card-border);border-radius:var(--radius);background:#fff;overflow:hidden;}
.skill-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem 1.15rem;text-align:left;
}
.skill-trigger-left{display:flex;align-items:center;gap:.9rem;min-width:0;}
.skill-icon{
  width:2.6rem;height:2.6rem;border-radius:.65rem;background:rgba(59,130,246,.1);
  color:var(--primary-dark);display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.skill-icon svg{width:1.5rem;height:1.5rem;}
.skill-name{display:block;font-weight:600;font-size:.96rem;color:var(--ink);}
.skill-desc{display:block;font-size:.8rem;color:var(--ink-muted);margin-top:.1rem;}
.skill-chevron{color:var(--ink-soft);flex-shrink:0;transition:transform 220ms ease;}
.skill-item.open .skill-chevron{transform:rotate(180deg);color:var(--primary-dark);}
.skill-item.open .skill-trigger{border-bottom:1px solid var(--card-border);}
.skill-panel{max-height:0;overflow:hidden;transition:max-height 260ms ease;}
.skill-panel-inner{padding:1rem 1.15rem 1.15rem;}

@media (prefers-reduced-motion: reduce){
  .skill-panel{transition:none;}
  .skill-chevron{transition:none;}
}

/* -------- Services overview cards (homepage) -------- */
.service-card{display:flex;flex-direction:column;height:100%;}
.service-card p{flex:1;}
.service-footer{display:flex;align-items:center;justify-content:space-between;margin-top:1.1rem;padding-top:1rem;border-top:1px solid var(--card-border);}
.price{font-size:1.1rem;font-weight:700;color:var(--primary-dark);}

/* -------- Service detail page layout -------- */
.service-layout{display:grid;gap:3rem;}
@media(min-width:960px){.service-layout{grid-template-columns:1fr 320px;align-items:start;}}
.service-main{display:flex;flex-direction:column;gap:3.25rem;}
.sidebar{position:static;}
@media(min-width:960px){.sidebar{position:sticky;top:5.5rem;}}

.price-card .amount{font-size:2.1rem;font-weight:700;color:var(--ink);letter-spacing:-0.02em;}
.price-card .unit{font-size:.9rem;color:var(--ink-muted);margin-left:.25rem;}
.price-card ul{margin-top:1.2rem;display:flex;flex-direction:column;gap:.6rem;}
.price-card li{display:flex;align-items:flex-start;gap:.55rem;font-size:.875rem;color:var(--ink-muted);}
.price-card li svg{flex-shrink:0;margin-top:.15rem;color:var(--primary);}
.price-card .note{margin-top:1rem;font-size:.78rem;color:var(--ink-soft);}

/* Who it's for / what's included — flat bordered items, not full cards */
.who-grid{display:grid;gap:.7rem;grid-template-columns:1fr;}
@media(min-width:640px){.who-grid{grid-template-columns:repeat(2,1fr);}}
.who-grid .item{
  border:1px solid var(--card-border);background:var(--card);border-radius:var(--radius-sm);
  padding:.85rem 1rem;font-size:.88rem;font-weight:500;color:var(--ink);
}

/* Process steps */
.process-grid{display:grid;gap:1rem;grid-template-columns:1fr;}
@media(min-width:640px){.process-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:960px){.process-grid{grid-template-columns:repeat(4,1fr);}}
.step-card{border:1px solid var(--card-border);background:var(--card);border-radius:var(--radius);padding:1.2rem;}
.step-card .eyebrow{margin-bottom:.4rem;}
.step-card p{font-size:.9rem;font-weight:500;color:var(--ink);}

/* Results list */
.results-list{display:flex;flex-direction:column;gap:.85rem;}
.results-list .item{display:flex;align-items:flex-start;gap:.75rem;}
.results-list .check{
  width:1.5rem;height:1.5rem;border-radius:50%;background:rgba(59,130,246,.12);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:.05rem;
}
.results-list p{color:var(--ink);font-weight:500;}
.results-note{margin-top:1.5rem;border:1px dashed var(--card-border);border-radius:.75rem;padding:1rem 1.25rem;font-size:.85rem;background:var(--card);}

/* FAQ — native details/summary, zero JS required */
.faq{border:1px solid var(--card-border);border-radius:var(--radius);background:var(--card);overflow:hidden;}
.faq details{border-bottom:1px solid var(--card-border);}
.faq details:last-child{border-bottom:none;}
.faq summary{
  list-style:none;cursor:pointer;padding:1.05rem 1.35rem;font-weight:600;font-size:.94rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:1.25rem;font-weight:400;color:var(--ink-soft);}
.faq details[open] summary::after{content:"\2013";}
.faq .faq-answer{padding:0 1.35rem 1.2rem;font-size:.9rem;line-height:1.65;color:var(--ink-muted);}

/* -------- Contact -------- */
.audience-list{display:flex;flex-direction:column;gap:1.1rem;margin-bottom:2.25rem;}
.audience-item{border-top:2px solid var(--card-border);padding-top:1rem;}
.audience-item:first-child{border-top:none;padding-top:0;}

.form-row{display:grid;gap:1rem;}
@media(min-width:560px){.form-row.two{grid-template-columns:1fr 1fr;}}
label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.4rem;}
input,textarea{
  width:100%;border:1px solid var(--card-border);border-radius:.6rem;
  padding:.7rem .9rem;font:inherit;font-size:.9rem;background:#fff;color:var(--ink);
}
textarea{resize:vertical;min-height:7rem;}
.form-note{font-size:.78rem;color:var(--ink-soft);margin-top:.75rem;}

/* -------- CTA -------- */
.cta-box{
  border-radius:1.1rem;border:1px solid var(--card-border);
  background:var(--card);padding:3rem 1.75rem;text-align:center;
}
.cta-box h2{max-width:32rem;margin:0 auto;}
.cta-box p{max-width:28rem;margin:.75rem auto 0;}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:.65rem;margin-top:1.6rem;}

/* -------- Footer -------- */
footer{border-top:1px solid var(--card-border);background:var(--card);}
.footer-grid{display:grid;gap:2.25rem;padding:3.25rem 0;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr;}}
.footer-bottom{
  border-top:1px solid var(--card-border);padding:1.4rem 0;
  display:flex;flex-direction:column;gap:.5rem;font-size:.78rem;color:var(--ink-soft);
}
@media(min-width:640px){.footer-bottom{flex-direction:row;justify-content:space-between;}}
.social-row{display:flex;gap:.15rem;margin-top:.9rem;}
.footer-nav a{display:block;padding:.28rem 0;font-size:.875rem;color:var(--ink-muted);}
.footer-nav a:hover{color:var(--primary-dark);}
.footer-brand{font-weight:700;font-size:1.02rem;color:var(--ink);}
.footer-tagline{margin-top:.5rem;font-size:.9rem;max-width:22rem;}
.footer-label{font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:.5rem;}
.footer-email{font-size:.875rem;color:var(--ink-muted);}

/* -------- Scroll reveal -------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}