/* ============================================================
   Taj Walia — tajwalia.com · 2026
   Confident Light Premium
   ============================================================ */

:root{
  --paper:#FBF9F5;
  --paper-deep:#F3EFE8;
  --card:#FFFFFF;
  --ink:#161D24;
  --ink-soft:#3C444C;
  --muted:#6E6A63;
  --line:#E4DED4;
  --accent:#A64A1B;         /* confident copper */
  --accent-deep:#7E370F;
  --accent-tint:#F6E8DE;
  --green:#1F5B4E;
  --serif:"Fraunces", Georgia, serif;
  --sans:"Inter", -apple-system, "Segoe UI", sans-serif;
  --maxw:1180px;
  --radius:14px;
  --shadow:0 1px 2px rgba(22,29,36,.05), 0 12px 32px -12px rgba(22,29,36,.12);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-deep);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
::selection{background:var(--accent-tint)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.12;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.5rem,6vw,4.4rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem)}
h3{font-size:1.35rem}
p{margin:0 0 1.1em}
.lead{font-size:clamp(1.08rem,1.6vw,1.3rem);color:var(--ink-soft);max-width:46ch}

.eyebrow{
  display:inline-flex;align-items:center;gap:.55em;
  font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-deep);margin-bottom:1.1rem;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:inline-block}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(251,249,245,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-family:var(--serif);font-size:1.25rem;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand em{font-style:normal;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:1.6rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink-soft);font-size:.92rem;font-weight:500}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-cta{
  background:var(--ink);color:#fff!important;padding:.62em 1.15em;border-radius:99px;
  font-weight:600;transition:background .2s;
}
.nav-cta:hover{background:var(--accent-deep);text-decoration:none}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--ink);cursor:pointer;padding:.2em .4em}
@media (max-width:880px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;top:70px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line);padding:.5rem 24px 1.2rem;
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:.75em 0;font-size:1.05rem}
  .nav-cta{display:inline-block;margin-top:.6em}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.85em 1.5em;border-radius:99px;font-weight:600;font-size:.98rem;
  transition:transform .15s ease, background .2s, color .2s;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-arrow::after{content:"→";transition:transform .15s}
.btn-arrow:hover::after{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{padding:clamp(3.5rem,8vw,6.5rem) 0 clamp(3rem,6vw,5rem);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.hero h1 .accent{color:var(--accent)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.9rem;margin:1.8rem 0 1.4rem}
.hero-contact{display:flex;flex-wrap:wrap;gap:1.4rem;color:var(--muted);font-size:.92rem}
.hero-contact a{color:var(--muted)}
.hero-contact a:hover{color:var(--accent-deep)}
.hero-photo{position:relative}
.hero-photo img{
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  aspect-ratio:5/6;object-fit:cover;width:100%;
}
.hero-photo::before{
  content:"";position:absolute;inset:-18px -18px auto auto;width:60%;height:60%;
  border:1.5px solid var(--accent);border-radius:var(--radius);z-index:-1;
}
.photo-tag{
  position:absolute;left:-14px;bottom:22px;
  background:var(--ink);color:#fff;padding:.7em 1.1em;border-radius:10px;
  font-size:.85rem;line-height:1.4;box-shadow:var(--shadow);max-width:250px;
}
.photo-tag strong{color:#F0C9A8;display:block;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
@media (max-width:880px){
  .hero-grid{grid-template-columns:1fr}
  .hero-photo{max-width:420px}
}

/* ---------- Stat band ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--card)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.stat{background:var(--card);padding:2rem 1.5rem;text-align:left}
.stat .num{font-family:var(--serif);font-size:clamp(2rem,3.4vw,2.9rem);font-weight:600;color:var(--ink);line-height:1}
.stat .num em{font-style:normal;color:var(--accent);font-size:.65em}
.stat .lbl{color:var(--muted);font-size:.88rem;margin-top:.5em}
@media (max-width:760px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- Sections ---------- */
section{padding:clamp(3.5rem,7vw,6rem) 0}
.section-head{max-width:720px;margin-bottom:clamp(2rem,4vw,3.2rem)}
.section-head p{color:var(--ink-soft)}
.alt{background:var(--paper-deep)}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem)}
.about-facts{display:grid;gap:1rem;align-content:start}
.fact{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.2rem 1.4rem;box-shadow:0 1px 2px rgba(22,29,36,.04);
}
.fact h4{font-family:var(--sans);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .35em}
.fact p{margin:0;color:var(--ink-soft);font-size:.96rem}
@media (max-width:880px){.about-grid{grid-template-columns:1fr}}

/* ---------- Logo wall ---------- */
.logos-note{color:var(--muted);font-size:.92rem;margin-top:1.6rem}
.logo-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.logo-cell{
  background:var(--card);display:flex;align-items:center;justify-content:center;
  padding:1.8rem 1.5rem;min-height:110px;
}
.logo-cell img{
  max-height:44px;width:auto;max-width:130px;object-fit:contain;
  filter:grayscale(1) contrast(.85);opacity:.75;transition:filter .25s,opacity .25s;
}
.logo-cell:hover img{filter:none;opacity:1}
@media (max-width:760px){.logo-grid{grid-template-columns:repeat(2,1fr)}.logo-cell{min-height:90px;padding:1.2rem}}

.logo-grid.dense{grid-template-columns:repeat(6,1fr)}
.logo-grid.dense .logo-cell{min-height:84px;padding:1.15rem 1rem}
.logo-grid.dense .logo-cell img{max-height:34px;max-width:110px}
@media (max-width:880px){.logo-grid.dense{grid-template-columns:repeat(4,1fr)}}
@media (max-width:600px){.logo-grid.dense{grid-template-columns:repeat(3,1fr)}.logo-grid.dense .logo-cell{min-height:70px;padding:.9rem .7rem}.logo-grid.dense .logo-cell img{max-height:28px;max-width:88px}}

/* ---------- Case study cards ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1.6rem}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(22,29,36,.04);
  transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-img{aspect-ratio:16/9;overflow:hidden;background:var(--paper-deep)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-img img{transform:scale(1.04)}
.card-body{padding:1.6rem 1.7rem 1.8rem;display:flex;flex-direction:column;gap:.6rem;flex:1}
.card-kicker{font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-deep)}
.card h3{margin:0}
.card p{color:var(--ink-soft);font-size:.97rem;margin:0}
.card-link{margin-top:auto;padding-top:.9rem;font-weight:600;color:var(--accent-deep)}
.card-link::after{content:" →"}
.cards.cols3{grid-template-columns:repeat(3,1fr)}
.card.essay .card-body{padding:2rem 1.8rem 1.9rem}
.card.essay h3{font-size:1.3rem}
.card.essay{border-top:3px solid var(--accent)}
@media (max-width:880px){.cards.cols3{grid-template-columns:1fr}}
@media (max-width:760px){.cards{grid-template-columns:1fr}}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:860px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1.5px;background:var(--line)}
.t-item{position:relative;padding:0 0 2.6rem 2.4rem}
.t-item:last-child{padding-bottom:0}
.t-item::before{
  content:"";position:absolute;left:0;top:8px;width:15px;height:15px;border-radius:50%;
  background:var(--paper);border:2.5px solid var(--accent);
}
.t-dates{font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.t-item h3{margin:.25em 0 .1em}
.t-org{color:var(--accent-deep);font-weight:600;font-size:.98rem}
.t-item p{color:var(--ink-soft);font-size:.97rem;margin:.6em 0 0}
.t-brands{margin-top:.7em;font-size:.85rem;color:var(--muted)}
.t-brands strong{color:var(--ink-soft);font-weight:600}

/* ---------- Skills ---------- */
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.skill{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem 1.7rem 1.5rem;
}
.skill.featured{background:var(--ink);color:#EDE8E0;border-color:var(--ink)}
.skill.featured h3{color:#fff}
.skill.featured .skill-note{color:#C9C2B7}
.skill h3{font-size:1.12rem;margin-bottom:.7em}
.skill ul{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:.45em}
.skill li{
  border:1px solid var(--line);border-radius:99px;padding:.32em .85em;
  font-size:.86rem;color:var(--ink-soft);background:var(--paper);
}
.skill.featured li{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.18);color:#EDE8E0}
.skill-note{font-size:.9rem;color:var(--muted);margin:.9em 0 0}
@media (max-width:880px){.skills-grid{grid-template-columns:1fr}}

/* ---------- Education ---------- */
.edu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.edu{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.9rem 1.8rem 1.7rem;border-top:3px solid var(--accent);
  box-shadow:0 1px 2px rgba(22,29,36,.04);
  transition:transform .2s ease, box-shadow .2s ease;
}
.edu:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.edu-level{
  display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent-deep);background:var(--accent-tint);border-radius:99px;padding:.3em .95em;margin-bottom:.9rem;
}
.edu h3{font-size:1.22rem;margin:0 0 .25em}
.edu p{color:var(--muted);font-size:.94rem;margin:0 0 1.1em}
.edu .yr{font-family:var(--serif);color:var(--ink);font-size:1.5rem;font-weight:600;border-top:1px solid var(--line);padding-top:.7rem}
@media (max-width:880px){.edu-grid{grid-template-columns:1fr}}

/* ---------- Awards ---------- */
.awards-title{margin:3rem 0 1.3rem;font-size:1.25rem}
.award-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1.2rem}
.award{
  background:var(--paper-deep);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem 1.3rem;position:relative;
}
.award::before{content:"✦";color:var(--accent);font-size:1rem;display:block;margin-bottom:.6rem}
.award-yr{position:absolute;top:1.2rem;right:1.2rem;font-family:var(--serif);color:var(--accent-deep);font-weight:600;font-size:1rem}
.award h4{font-family:var(--sans);font-size:.95rem;font-weight:600;margin:0 0 .3em;line-height:1.35;padding-right:2.6rem}
.award p{color:var(--muted);font-size:.83rem;margin:0}
@media (max-width:1080px){.award-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:700px){.award-grid{grid-template-columns:1fr}}

/* ---------- AI banner ---------- */
.ai-banner{
  background:var(--ink);color:#EDE8E0;border-radius:calc(var(--radius) + 6px);
  padding:clamp(2.2rem,5vw,3.6rem);display:grid;grid-template-columns:1.4fr .6fr;
  gap:2rem;align-items:center;
}
.ai-banner h2{color:#fff}
.ai-banner p{color:#C9C2B7}
.ai-banner .btn-primary{justify-self:start}
@media (max-width:760px){.ai-banner{grid-template-columns:1fr}}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.contact-list{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;gap:1rem}
.contact-list a{font-size:1.05rem;font-weight:600;color:var(--ink)}
.contact-list a:hover{color:var(--accent-deep)}
.contact-list .cl{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:block}
.contact-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:2rem;box-shadow:var(--shadow);
}
@media (max-width:880px){.contact-grid{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:2.2rem 0;color:var(--muted);font-size:.88rem}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;align-items:center}
.foot a{color:var(--muted)}

/* ---------- Case study / article pages ---------- */
.article-hero{padding:clamp(3rem,6vw,5rem) 0 clamp(2rem,4vw,3rem)}
.article-hero .meta{display:flex;flex-wrap:wrap;gap:1.6rem;color:var(--muted);font-size:.9rem;margin-top:1.4rem}
.article-hero .meta strong{display:block;color:var(--ink);font-size:.98rem}
.article-body{max-width:760px}
.article-body h2{font-size:1.7rem;margin-top:2.2em}
.article-body ul{padding-left:1.2em;color:var(--ink-soft)}
.article-body li{margin-bottom:.5em}
.pull-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin:2.4rem 0}
.pull-stats .stat{border:1px solid var(--line);border-radius:var(--radius)}
.article-img{border-radius:var(--radius);box-shadow:var(--shadow);margin:2.4rem 0}
.next-steps{
  margin-top:3.5rem;padding-top:2.2rem;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;
}
@media (max-width:760px){.pull-stats{grid-template-columns:1fr}}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}