/* =========================================================
   SAIRA WALI — PORTFOLIO STYLESHEET
   Design concept: "The Ledger" — a nod to bookkeeping,
   spreadsheets and content calendars, Saira's daily tools.
   Hairline rules, cell-reference eyebrows and a ruled
   timeline carry that idea through every section.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,500&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* ---- color tokens ---- */
  --ink:#1C1B18;
  --paper:#F2EFE8;
  --surface:#FFFFFF;
  --brass:#A97C25;
  --brass-dark:#7E5C1B;
  --forest:#2F4538;
  --slate:#615E54;
  --muted:#8A8577;
  --line:#DBD5C4;
  --line-strong:#C6BFA9;

  /* ---- type tokens ---- */
  --font-display:'Fraunces', serif;
  --font-body:'IBM Plex Sans', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  /* ---- layout tokens ---- */
  --max-w: 1120px;
  --radius: 4px;
  --gap: 1.5rem;
}

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

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

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

a{ color:inherit; text-decoration:none; }

ul{ margin:0; padding:0; list-style:none; }

.container{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 1.75rem;
}

/* ---- ledger background: faint ruled lines ---- */
.ledger-bg{
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 43px,
    var(--line) 43px,
    var(--line) 44px
  );
}

/* ---- eyebrow / cell reference tag ---- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-mono);
  font-size:1.1rem;
  letter-spacing:.06em;
  color:var(--brass-dark);
  margin-bottom:.9rem;
}
.eyebrow .cell{
  border:1px solid var(--line-strong);
  background:var(--surface);
  padding:.15rem .45rem;
  border-radius:2px;
  color:var(--slate);
}
.hero .eyebrow{
  font-size: 1rem;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  color:var(--ink);
  line-height:1.15;
  margin:0;
}

h2{ font-size:clamp(1.7rem, 3vw, 2.3rem); }
h3{ font-size:1.2rem; }

p{ margin:0 0 1rem; color:var(--slate); }
p:last-child{ margin-bottom:0; }

.section{ padding:5rem 0; border-bottom:1px solid var(--line); }
.section:last-of-type{ border-bottom:none; }
.section-head{ max-width:640px; margin-bottom:2.75rem; }
.section-head p{ font-size:1.02rem; }

.section-alt{ background:var(--surface); }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-mono);
  font-size:.85rem;
  letter-spacing:.03em;
  padding:.85rem 1.5rem;
  border-radius:2px;
  border:1px solid var(--ink);
  transition: background .2s ease, color .2s ease, transform .15s ease, border-color .2s ease;
}
.btn-primary{
  background:var(--ink);
  color:var(--paper);
}
.btn-primary:hover{
  background:var(--brass-dark);
  border-color:var(--brass-dark);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--line-strong);
}
.btn-ghost:hover{
  border-color:var(--ink);
  transform:translateY(-2px);
}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(242,239,232,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line-strong);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:1.1rem 0;
}
.nav-brand img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  display: block;
  margin-bottom: -10px;
  margin-top: -10px;
}
.nav-brand{
  font-family:var(--font-display);
  font-weight:600;
  font-size:1.3rem;
  letter-spacing:.02em;
}
.nav-brand span{ color:var(--brass); }

.nav-links{
  display:flex;
  align-items:center;
  gap:2rem;
  font-family:var(--font-mono);
  font-size:.88rem;
}
.nav-links a{
  position:relative;
  color:var(--slate);
  padding-bottom:.2rem;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0%;
  height:1px;
  background:var(--brass);
  transition:width .25s ease;
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ width:100%; }

.nav-cta{
  font-family:var(--font-mono);
  font-size:.78rem;
  padding:.6rem 1.1rem;
  border:1px solid var(--ink);
  border-radius:2px;
  transition:all .2s ease;
}
.nav-cta:hover{ background:lightyellow; color:var(--paper); }

/* mobile nav: CSS-only toggle */
.nav-toggle{ display:none; }
.nav-toggle-label{ display:none; }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  padding:5.5rem 0 4.5rem;
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:3.5rem;
  align-items:center;
}
.hero-title{
  font-size:clamp(2.4rem, 5vw, 3.6rem);
  margin-bottom:1rem;
}
.hero-title em{
  font-style:italic;
  color:var(--brass-dark);
}
.hero-role{
  font-family:var(--font-mono);
  font-size:1rem;
  color:var(--forest);
  margin-bottom:1.4rem;
  letter-spacing:.01em;
}
.hero-intro{
  font-size:1.08rem;
  max-width:46ch;
  margin-bottom:2rem;
}
.hero-ctas{
  display:flex;
  gap:1rem;
  flex-wrap:wrap;
  margin-bottom:2.75rem;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
}
.tag{
  font-family:var(--font-mono);
  font-size:.75rem;
  color:var(--slate);
  border:1px solid var(--line-strong);
  background:var(--surface);
  padding:.35rem .7rem;
  border-radius:2px;
}

.hero-photo-wrap{
  position:relative;
  justify-self:center;
}
.hero-photo-frame{
  position:relative;
  width:min(320px, 80vw);
  border:1px solid var(--ink);
  padding:.6rem;
  background:var(--surface);
}
.hero-photo-frame img{
  width:100%;
  aspect-ratio:4/4.1;
  object-fit:cover;
  filter:grayscale(8%);
}
.hero-photo-frame::before,
.hero-photo-frame::after{
  content:"";
  position:absolute;
  width:14px; height:14px;
  border:1px solid var(--brass);
}
.hero-photo-frame::before{ top:-7px; left:-7px; border-right:none; border-bottom:none; }
.hero-photo-frame::after{ bottom:-7px; right:-7px; border-left:none; border-top:none; }
.hero-photo-caption{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--muted);
  text-align:center;
  margin-top:.85rem;
  letter-spacing:.04em;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3rem;
  align-items:start;
}
.about-copy p{ font-size:1.03rem; }
.about-highlight{
  border-left:2px solid var(--brass);
  padding:.2rem 0 .2rem 1.2rem;
  margin:1.6rem 0;
  font-family:var(--font-display);
  font-style:italic;
  font-size:1.15rem;
  color:var(--ink);
}
.fact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line-strong);
  border:1px solid var(--line-strong);
}
.fact{
  background:var(--surface);
  padding:1.3rem 1.4rem;
}
.fact-label{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.06em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:.4rem;
}
.fact-value{
  font-family:var(--font-display);
  font-size:1.3rem;
  font-weight:600;
}
.lang-list{ margin-top:1.5rem; }
.lang-list .fact-label{ margin-bottom:.6rem; }
.lang-pills{ display:flex; gap:.5rem; flex-wrap:wrap; }

/* =========================================================
   SERVICES
   ========================================================= */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line-strong);
  border:1px solid var(--line-strong);
}
.service-card{
  background:var(--surface);
  padding:2rem 1.8rem;
  transition:background .2s ease;
}
.service-card:hover{ background:#FBFAF6; }
.service-index{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--brass-dark);
  margin-bottom:.9rem;
  display:block;
}
.service-card h3{ margin-bottom:.6rem; }
.service-card p{ font-size:.95rem; }

/* =========================================================
   SKILLS
   ========================================================= */
.skills-cols{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:3rem;
}
.skill-group-title{
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--forest);
  margin-bottom:1rem;
}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:.55rem;
  margin-bottom:2.2rem;
}
.tag-cloud:last-child{ margin-bottom:0; }
.skill-tag{
  font-size:.85rem;
  padding:.5rem .85rem;
  border:1px solid var(--line-strong);
  background:var(--surface);
  border-radius:2px;
  color:var(--ink);
}
.trait-list{ display:flex; flex-direction:column; gap:.75rem; }
.trait{
  display:flex;
  align-items:center;
  gap:.7rem;
  font-size:.95rem;
  padding-bottom:.75rem;
  border-bottom:1px solid var(--line);
}
.trait:last-child{ border-bottom:none; }
.trait-mark{
  width:8px; height:8px;
  border-radius:50%;
  background:var(--brass);
  flex-shrink:0;
}

/* =========================================================
   EXPERIENCE / EDUCATION — ruled timeline
   ========================================================= */
.timeline{
  position:relative;
  padding-left:2.2rem;
  border-left:1px solid var(--line-strong);
}
.timeline-item{
  position:relative;
  padding-bottom:2.75rem;
}
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{
  content:"";
  position:absolute;
  left:-2.46rem;
  top:.35rem;
  width:9px; height:9px;
  background:var(--paper);
  border:2px solid var(--brass);
  border-radius:50%;
}
.timeline-date{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--brass-dark);
  margin-bottom:.35rem;
}
.timeline-role{ font-size:1.25rem; margin-bottom:.15rem; }
.timeline-org{
  font-family:var(--font-mono);
  font-size:.85rem;
  color:var(--forest);
  margin-bottom:.9rem;
}
.timeline-item ul{ margin-top:.9rem; }
.timeline-item li{
  position:relative;
  padding-left:1.1rem;
  margin-bottom:.55rem;
  font-size:.95rem;
  color:var(--slate);
}
.timeline-item li::before{
  content:"—";
  position:absolute;
  left:0;
  color:var(--muted);
}

/* =========================================================
   PROJECTS
   ========================================================= */
.project-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:1.5rem;
}
.project-card{
  background:var(--surface);
  border:1px solid var(--line-strong);
  padding:1.9rem 1.9rem 2rem;
  transition:transform .2s ease, box-shadow .2s ease;
}
.project-card:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 24px -16px rgba(28,27,24,.25);
}
.project-tag{
  font-family:var(--font-mono);
  font-size:.7rem;
  color:var(--brass-dark);
  border:1px solid var(--line-strong);
  display:inline-block;
  padding:.2rem .55rem;
  border-radius:2px;
  margin-bottom:1rem;
}
.project-card h3{ margin-bottom:.6rem; }
.project-card p{ font-size:.94rem; }
.project-meta{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--muted);
  margin-top:1.1rem;
}

/* =========================================================
   CERTIFICATIONS
   ========================================================= */
.cert-row{
  display:flex;
  align-items:center;
  gap:1.5rem;
  background:var(--surface);
  border:1px solid var(--line-strong);
  padding:1.6rem 1.8rem;
}
.cert-mark{
  font-family:var(--font-mono);
  font-size:.75rem;
  color:var(--brass-dark);
  border:1px solid var(--brass);
  padding:.5rem .7rem;
  border-radius:2px;
  flex-shrink:0;
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3rem;
}
.contact-info-list{ margin-top:1.8rem; }
.contact-info-item{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  padding:1rem 0;
  border-bottom:1px solid var(--line);
}
.contact-info-item .fact-label{ margin:0; }
.contact-info-item a, .contact-info-item span.value{
  font-family:var(--font-mono);
  font-size:.92rem;
}
.contact-info-item a:hover{ color:var(--brass-dark); }
.contact-form{
  margin-top: 50px;
}

.social-row{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  margin-top:1.8rem;
}

.social-badge{
  font-family:var(--font-mono);
  font-size:.78rem;
  border:1px solid var(--line-strong);
  padding:.5rem .9rem;
  border-radius:2px;
  color:var(--slate);
}

.form-field{ margin-bottom:1.3rem; }
.form-field label{
  display:block;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:.5rem;
}
.form-field input,
.form-field textarea{
  width:100%;
  border:1px solid var(--line-strong);
  background:var(--surface);
  padding:.8rem .9rem;
  font-family:var(--font-body);
  font-size:.95rem;
  color:var(--ink);
  border-radius:2px;
  transition:border-color .2s ease;
}
.form-field input:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--brass);
}
.form-field textarea{ resize:vertical; min-height:120px; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{
  padding:3rem 0 2.2rem;
  background:var(--ink);
  color:var(--paper);
}
.footer-grid{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:2rem;
  padding-bottom:2rem;
  border-bottom:1px solid rgba(242,239,232,.15);
  margin-bottom:1.5rem;
}
.footer-brand{
  font-family:var(--font-display);
  font-size:1.4rem;
  color: #B9B4A5;
}
.footer-tagline{
  font-family:var(--font-mono);
  font-size:.82rem;
  color:#B9B4A5;
  margin-top:.5rem;
  max-width:32ch;
}
.footer-links{
  display:flex;
  gap:1.6rem;
  font-family:var(--font-mono);
  font-size:.8rem;
}
.footer-links a{ color:#D8D3C3; transition:color .2s ease; }
.footer-links a:hover{ color:var(--brass); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.5rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  color:#9A9484;
}

/* =========================================================
   ACCESSIBILITY
   ========================================================= */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
label:focus-within{
  outline:2px solid var(--brass);
  outline-offset:2px;
}
.skip-link{
  position:absolute;
  left:-9999px;
  top:auto;
  background:var(--ink);
  color:var(--paper);
  padding:.8rem 1.2rem;
  font-family:var(--font-mono);
  font-size:.85rem;
  z-index:1000;
}
.skip-link:focus{
  left:1rem;
  top:1rem;
}

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-photo-wrap{ order:-1; margin-bottom:1rem; }
  .about-grid{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns:1fr 1fr; }
  .skills-cols{ grid-template-columns:1fr; }
  .project-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ flex-direction:column; }
}

@media (max-width: 640px){
  .section{ padding:3.5rem 0; }
  .nav-links{
    position:fixed;
    inset:0 0 0 auto;
    height:100vh;
    width:78vw;
    max-width:320px;
    background:var(--paper);
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    padding:6rem 2rem 2rem;
    gap:1.6rem;
    transform:translateX(100%);
    transition:transform .3s ease;
    border-left:1px solid var(--line-strong);
    font-size:1rem;
  }
  .nav-toggle:checked ~ .nav-links{ transform:translateX(0); }
  .nav-toggle-label{
    display:flex;
    flex-direction:column;
    gap:5px;
    cursor:pointer;
    z-index:110;
    padding:.4rem;
  }
  .nav-toggle-label span{
    width:22px; height:2px; background:var(--ink); display:block;
  }
  .nav-cta{ display:none; }
  .services-grid{ grid-template-columns:1fr; }
  .fact-grid{ grid-template-columns:1fr; }
  .cert-row{ flex-direction:column; align-items:flex-start; }
  .footer-bottom{ flex-direction:column; }
}