/* =========================================================
   Sneha Jain — snehajain.co.uk
   Palette, type and layout for the whole site.
   Change the tokens in :root and the site follows.
   ========================================================= */

:root{
  /* Colour */
  --paper:        #f7f3ed;
  --paper-alt:    #efe9e0;
  --ink:          #1b1815;
  --ink-soft:     #56504a;
  --line:         #ddd4c8;
  --accent:       #b04a25;   /* terracotta */
  --accent-soft:  #f0d9cd;

  /* Type */
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Rhythm */
  --gut:   clamp(1.25rem, 4vw, 3rem);
  --max:   1180px;
  --pad-y: clamp(4.5rem, 10vw, 9rem);

  --radius: 4px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark){
  :root{
    --paper:       #14120f;
    --paper-alt:   #1c1916;
    --ink:         #f2ece4;
    --ink-soft:    #a89f95;
    --line:        #332d27;
    --accent:      #e0794c;
    --accent-soft: #3a251b;
  }
}

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

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:clamp(1rem, .96rem + .2vw, 1.075rem);
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; }

h1,h2,h3{ font-family:var(--serif); font-weight:400; line-height:1.08; letter-spacing:-.015em; margin:0; }
p{ margin:0 0 1.1em; }
em{ font-style:italic; }

::selection{ background:var(--accent); color:var(--paper); }

.skip{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--ink); color:var(--paper); padding:.75rem 1.25rem;
}
.skip:focus{ left:0; }

:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:2px; }

/* ---------------------------------------------------------
   Header / nav
   --------------------------------------------------------- */
.site-head{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:1.1rem var(--gut);
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease);
}
.site-head.is-stuck{ border-bottom-color:var(--line); }

.wordmark{ text-decoration:none; display:grid; line-height:1.15; }
.wordmark__name{ font-family:var(--serif); font-size:1.3rem; letter-spacing:-.02em; }
.wordmark__role{ font-size:.7rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-soft); }

.nav{ display:flex; align-items:center; gap:clamp(1rem,2.5vw,2rem); }
.nav a{
  text-decoration:none; font-size:.9rem; letter-spacing:.01em; color:var(--ink-soft);
  padding:.35rem 0; position:relative; transition:color .25s var(--ease);
}
.nav a:hover{ color:var(--ink); }
.nav a:not(.nav__cta)::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--accent); transition:right .35s var(--ease);
}
.nav a:not(.nav__cta):hover::after{ right:0; }

.nav__cta{
  border:1px solid var(--ink); border-radius:100px; padding:.45rem 1.1rem !important;
  color:var(--ink) !important;
}
.nav__cta:hover{ background:var(--ink); color:var(--paper) !important; }

.nav-toggle{ display:none; }

@media (max-width:760px){
  .nav-toggle{
    display:grid; gap:5px; place-content:center; width:44px; height:44px;
    background:none; border:0; cursor:pointer; padding:0;
  }
  .nav-toggle span{
    display:block; width:24px; height:1.5px; background:var(--ink);
    transition:transform .3s var(--ease), opacity .3s var(--ease);
  }
  .nav-toggle[aria-expanded="true"] span:first-child{ transform:translateY(3.25px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child{ transform:translateY(-3.25px) rotate(-45deg); }

  .nav{
    position:fixed; inset:64px 0 auto 0;
    flex-direction:column; align-items:flex-start; gap:.5rem;
    background:var(--paper); border-bottom:1px solid var(--line);
    padding:1rem var(--gut) 2rem;
    transform:translateY(-120%); transition:transform .35s var(--ease);
  }
  .nav.is-open{ transform:translateY(0); }
  .nav a{ font-size:1.35rem; font-family:var(--serif); color:var(--ink); }
  .nav__cta{ margin-top:.5rem; font-size:1rem !important; }
}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero{
  max-width:var(--max); margin:0 auto;
  padding:clamp(3.5rem,9vw,7rem) var(--gut) clamp(3rem,7vw,5rem);
}
.eyebrow{
  font-size:.72rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--ink-soft); margin-bottom:1.75rem;
}
.hero__title{
  font-size:clamp(2.6rem, 7.5vw, 5.6rem);
  max-width:15ch;
  margin-bottom:1.75rem;
}
.hero__title em{ color:var(--accent); }
.hero__lede{
  font-size:clamp(1.05rem,1.6vw,1.25rem);
  max-width:52ch; color:var(--ink-soft);
}
.hero__actions{ display:flex; flex-wrap:wrap; gap:.75rem; margin-top:2.25rem; }

.btn{
  display:inline-block; text-decoration:none; font-size:.9rem; letter-spacing:.02em;
  padding:.85rem 1.6rem; border-radius:100px; border:1px solid var(--ink);
  transition:transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
  cursor:pointer; font-family:var(--sans);
}
.btn--solid{ background:var(--ink); color:var(--paper); }
.btn--solid:hover{ background:var(--accent); border-color:var(--accent); transform:translateY(-2px); }
.btn--ghost{ background:none; color:var(--ink); }
.btn--ghost:hover{ background:var(--ink); color:var(--paper); transform:translateY(-2px); }

/* ---------------------------------------------------------
   Marquee
   --------------------------------------------------------- */
.marquee{
  border-block:1px solid var(--line);
  overflow:hidden; padding:.9rem 0;
  background:var(--paper-alt);
}
.marquee__track{
  display:flex; align-items:center; gap:1.5rem; width:max-content;
  animation:slide 42s linear infinite;
  font-family:var(--serif); font-size:1.15rem; color:var(--ink-soft); white-space:nowrap;
}
.marquee__track i{ color:var(--accent); font-style:normal; font-size:.8rem; }
@keyframes slide{ to{ transform:translateX(-50%); } }
@media (prefers-reduced-motion:reduce){ .marquee__track{ animation:none; } }

/* ---------------------------------------------------------
   Sections
   --------------------------------------------------------- */
.section{ padding:var(--pad-y) var(--gut); }
.section--alt{ background:var(--paper-alt); border-block:1px solid var(--line); }

.section__head{
  max-width:var(--max); margin:0 auto clamp(2.5rem,5vw,4rem);
  display:flex; flex-wrap:wrap; align-items:baseline; justify-content:space-between; gap:1rem;
  border-bottom:1px solid var(--line); padding-bottom:1.25rem;
}
.section__title{ font-size:clamp(1.9rem,4vw,3rem); }
.section__note{ color:var(--ink-soft); margin:0; max-width:40ch; font-size:.95rem; }

/* ---------------------------------------------------------
   Work grid
   --------------------------------------------------------- */
.work-grid{
  max-width:var(--max); margin:0 auto;
  display:grid; gap:clamp(2rem,4vw,3.5rem);
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
}
.card{ text-decoration:none; display:block; }
.card__media{
  overflow:hidden; border-radius:var(--radius); background:var(--paper-alt);
  border:1px solid var(--line); aspect-ratio:4/3;
}
.card__media img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .7s var(--ease), filter .5s var(--ease);
}
.card:hover .card__media img{ transform:scale(1.04); }
.card__meta{ padding-top:1.1rem; }
.card__meta h3{
  font-size:1.5rem; margin-bottom:.3rem;
  display:inline-block; background-image:linear-gradient(var(--accent),var(--accent));
  background-size:0 1px; background-position:0 100%; background-repeat:no-repeat;
  transition:background-size .4s var(--ease);
}
.card:hover .card__meta h3{ background-size:100% 1px; }
.card__meta p{ color:var(--ink-soft); margin-bottom:.5rem; }
.card__tags{ font-size:.75rem; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); }

/* ---------------------------------------------------------
   Services
   --------------------------------------------------------- */
.services{
  max-width:var(--max); margin:0 auto; padding:0; list-style:none;
  display:grid; gap:clamp(2rem,3.5vw,3rem);
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
}
.service{ border-top:1px solid var(--line); padding-top:1.5rem; }
.service__num{
  font-family:var(--serif); font-size:.9rem; color:var(--accent);
  display:block; margin-bottom:1rem; letter-spacing:.05em;
}
.service h3{ font-size:1.6rem; margin-bottom:.75rem; }
.service p{ color:var(--ink-soft); }
.service ul{ list-style:none; padding:0; margin:1.25rem 0 0; font-size:.9rem; }
.service li{ padding:.5rem 0 .5rem 1.25rem; border-top:1px solid var(--line); position:relative; }
.service li::before{ content:"—"; position:absolute; left:0; color:var(--accent); }

/* ---------------------------------------------------------
   About
   --------------------------------------------------------- */
.about{
  max-width:var(--max); margin:0 auto;
  display:grid; gap:clamp(2rem,5vw,4.5rem);
  grid-template-columns:minmax(260px,.8fr) 1.2fr;
  align-items:start;
}
@media (max-width:820px){ .about{ grid-template-columns:1fr; } }

.about__portrait img{
  width:100%; border-radius:var(--radius); border:1px solid var(--line);
  background:var(--paper-alt);
}
.about__body .section__title{ margin-bottom:1.25rem; }
.lede{ font-size:1.2rem; font-family:var(--serif); line-height:1.45; margin-bottom:1.5rem; }
.about__body p{ color:var(--ink-soft); max-width:60ch; }

.facts{ margin:2.5rem 0 0; display:grid; gap:0; }
.facts > div{
  display:grid; grid-template-columns:minmax(110px,150px) 1fr; gap:1rem;
  padding:.9rem 0; border-top:1px solid var(--line); align-items:baseline;
}
.facts dt{ font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-soft); }
.facts dd{ margin:0; font-size:.95rem; }

/* ---------------------------------------------------------
   Process
   --------------------------------------------------------- */
.steps{
  max-width:var(--max); margin:0 auto; padding:0; list-style:none; counter-reset:s;
  display:grid; gap:clamp(1.5rem,3vw,2.5rem);
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
}
.steps li{ border-top:1px solid var(--line); padding-top:1.25rem; }
.steps span{ font-family:var(--serif); color:var(--accent); font-size:.85rem; letter-spacing:.05em; }
.steps h3{ font-size:1.3rem; margin:.6rem 0 .5rem; }
.steps p{ color:var(--ink-soft); font-size:.92rem; margin:0; }

/* ---------------------------------------------------------
   Quote
   --------------------------------------------------------- */
.quote{ padding:var(--pad-y) var(--gut); }
.quote blockquote{ max-width:820px; margin:0 auto; text-align:center; }
.quote p{
  font-family:var(--serif); font-size:clamp(1.4rem,3.2vw,2.2rem);
  line-height:1.35; margin-bottom:1.5rem;
}
.quote footer{ font-size:.85rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-soft); }
.quote cite{ font-style:normal; }

/* ---------------------------------------------------------
   Contact
   --------------------------------------------------------- */
.contact{ background:var(--paper-alt); border-top:1px solid var(--line); }
.contact__inner{ max-width:760px; margin:0 auto; }
.contact__title{ font-size:clamp(2rem,5vw,3.4rem); margin-bottom:1rem; }
.contact__lede{ color:var(--ink-soft); max-width:56ch; }

.mailto{
  display:inline-block; font-family:var(--serif); font-size:clamp(1.2rem,2.6vw,1.8rem);
  color:var(--accent); text-decoration:none; margin:.5rem 0 2.5rem;
  border-bottom:1px solid currentColor; padding-bottom:.15rem;
}
.mailto:hover{ color:var(--ink); }

.form{ display:grid; gap:1.1rem; }
.form__row{ display:grid; gap:1.1rem; grid-template-columns:1fr 1fr; }
@media (max-width:600px){ .form__row{ grid-template-columns:1fr; } }
.form label{ display:grid; gap:.4rem; }
.form label span{ font-size:.75rem; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-soft); }
.form input,.form textarea{
  font:inherit; font-size:1rem; color:var(--ink);
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
  padding:.8rem .9rem; width:100%; transition:border-color .25s var(--ease);
}
.form input:focus,.form textarea:focus{ border-color:var(--accent); outline:none; }
.form textarea{ resize:vertical; }
.form button{ justify-self:start; margin-top:.5rem; }
.form__note{ font-size:.85rem; color:var(--ink-soft); margin:0; }
.form__note a{ color:var(--accent); }
.hp{ position:absolute; left:-9999px; opacity:0; height:0; width:0; }

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.site-foot{ padding:clamp(2.5rem,5vw,4rem) var(--gut); border-top:1px solid var(--line); }
.site-foot__inner{
  max-width:var(--max); margin:0 auto;
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:1.25rem;
}
.site-foot__mark{ font-family:var(--serif); font-size:1.2rem; margin:0; }
.site-foot__links{ display:flex; flex-wrap:wrap; gap:1.25rem; }
.site-foot__links a{ font-size:.85rem; color:var(--ink-soft); text-decoration:none; }
.site-foot__links a:hover{ color:var(--accent); }
.site-foot__legal{ font-size:.78rem; color:var(--ink-soft); margin:0; }

/* ---------------------------------------------------------
   Case-study pages
   --------------------------------------------------------- */
.case-hero{ max-width:var(--max); margin:0 auto; padding:clamp(3rem,7vw,5.5rem) var(--gut) 0; }
.case-hero h1{ font-size:clamp(2.4rem,6vw,4.4rem); max-width:16ch; margin:1.25rem 0 1.5rem; }
.case-hero .hero__lede{ max-width:56ch; }

.case-facts{
  max-width:var(--max); margin:clamp(2.5rem,5vw,4rem) auto 0;
  display:grid; gap:1.5rem; grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  border-top:1px solid var(--line); padding-top:1.5rem;
}
.case-facts div h4{
  font-size:.72rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-soft); margin:0 0 .4rem; font-family:var(--sans); font-weight:500;
}
.case-facts div p{ margin:0; font-size:.95rem; }

.case-body{ max-width:720px; margin:0 auto; padding:var(--pad-y) var(--gut) 0; }
.case-body h2{ font-size:clamp(1.6rem,3vw,2.2rem); margin:2.5rem 0 1rem; }
.case-body p{ color:var(--ink-soft); }
.case-body h2:first-child{ margin-top:0; }

.case-figure{ max-width:var(--max); margin:clamp(2.5rem,5vw,4rem) auto 0; padding:0 var(--gut); }
.case-figure img{ width:100%; border:1px solid var(--line); border-radius:var(--radius); }
.case-figure figcaption{ font-size:.8rem; color:var(--ink-soft); margin-top:.75rem; }

.case-next{
  max-width:var(--max); margin:0 auto; padding:var(--pad-y) var(--gut);
  display:flex; justify-content:space-between; align-items:center; gap:1rem; flex-wrap:wrap;
}
.case-next a{ font-family:var(--serif); font-size:clamp(1.3rem,3vw,2rem); text-decoration:none; }
.case-next a:hover{ color:var(--accent); }

/* ---------------------------------------------------------
   404
   --------------------------------------------------------- */
.notfound{
  min-height:70vh; display:grid; place-content:center; text-align:center;
  padding:var(--pad-y) var(--gut); gap:1rem;
}
.notfound h1{ font-size:clamp(3rem,10vw,7rem); }

/* ---------------------------------------------------------
   Reveal on scroll
   --------------------------------------------------------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}