/* ================================================================
   Chawani.pk — Design tokens (pure black & white)
   Palette:  paper #FFFFFF · ink #0A0A0A · ink-soft #5A5A5A
             paper-dim #F4F4F4 · hairline #E4E4E4 · hairline-strong #CFCFCF
   Type:     Display  — 'Fraunces'      (engraved, coin-like serif)
              Body     — 'IBM Plex Sans' (clean, working font)
              Utility  — 'IBM Plex Mono' (data: dates, versions, figures)
   ================================================================ */

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

:root{
  --paper: #FFFFFF;
  --paper-dim: #F4F4F4;
  --ink: #0A0A0A;
  --ink-soft: #5A5A5A;
  --hairline: #E4E4E4;
  --hairline-strong: #CFCFCF;
  --max: 1120px;
  --gap: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 2px;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden; /* guards against the fixed watermark ever causing horizontal scroll */
}

h1,h2,h3{
  font-family:'Fraunces', Georgia, serif;
  font-weight:600;
  letter-spacing:-0.01em;
  line-height:1.08;
  margin:0;
  color:var(--ink);
}

a{ color:inherit; }
img{ max-width:100%; display:block; }
button{ font-family:inherit; cursor:pointer; background:none; border:none; }

.mono{ font-family:'IBM Plex Mono', monospace; }
.wrap{ max-width:var(--max); margin:0 auto; padding-inline: var(--gap); }
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--ink-soft);
}

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

/* ---------- watercolor coin watermark (signature element) ---------- */
/* Genuinely faint and strictly background: fixed behind everything,
   very low opacity, no interaction, never competes with text. */
.coin-field{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  overflow:hidden;
}
.coin-field img{
  position:absolute;
  opacity:0.028;
  filter:saturate(0);
  max-width:none;
}
.coin-field .c1{ width:70vw; max-width:820px; top:-18vw; right:-14vw; }
.coin-field .c2{ width:44vw; max-width:520px; bottom:2vh; left:-12vw; opacity:0.022; }
.coin-field .c3{ width:26vw; max-width:320px; top:58vh; right:4vw; opacity:0.024; }

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  border-bottom:1px solid transparent;
  transition: border-color .3s ease, background-color .3s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom-color:var(--hairline);
}
.header-inner{
  max-width:var(--max);
  margin:0 auto;
  padding: 1.1rem var(--gap);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:1.15rem;
  letter-spacing:-0.01em;
  text-decoration:none;
  display:flex;
  align-items:baseline;
  gap:.4rem;
}
.brand .dot{ color:var(--ink-soft); }

/* "Home" / back-to-top: hidden while at the top of the page, appears
   once you've scrolled down so there's a way back up. */
.nav-home{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink-soft);
  opacity:0;
  transform:translateY(-6px);
  visibility:hidden;
  pointer-events:none;
  transition: opacity .35s ease, transform .35s ease, visibility .35s;
  border:1px solid var(--hairline-strong);
  padding:.5rem .9rem;
  border-radius:var(--radius);
}
.nav-home:hover{ border-color:var(--ink); color:var(--ink); }
.site-header.scrolled .nav-home{
  opacity:1;
  transform:translateY(0);
  visibility:visible;
  pointer-events:auto;
}

/* back-to-products link on standalone product pages: always visible */
.nav-back{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink-soft);
  border:1px solid var(--hairline-strong);
  padding:.5rem .9rem;
  border-radius:var(--radius);
  transition: border-color .2s ease, color .2s ease;
}
.nav-back:hover{ border-color:var(--ink); color:var(--ink); }

/* ---------- section shell ---------- */
section{
  position:relative;
  z-index:1;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  border-top:1px solid var(--hairline);
}
.section-head{
  max-width:var(--max);
  margin:0 auto;
  padding: 0 var(--gap) 2.4rem;
}
.section-head h2{
  font-size:clamp(1.7rem, 3.4vw, 2.3rem);
}
#about .section-head{ padding-top: clamp(6rem, 13vw, 8.5rem); }

/* ---------- about ---------- */
.about-body{
  max-width:var(--max);
  margin:0 auto;
  padding: 0 var(--gap);
  display:grid;
  grid-template-columns: 0.7fr 1.8fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items:start;
}
.about-mark{
  width:56px;
  opacity:0.85;
}
.about-body p{
  font-size:1.1rem;
  color:var(--ink-soft);
  max-width:60ch;
}
.about-body p + p{ margin-top:1.2rem; }
@media (max-width: 820px){
  .about-body{ grid-template-columns:1fr; }
  .about-mark{ width:40px; }
}

/* ---------- testimonials carousel ---------- */
.carousel-shell{ position:relative; }
.carousel-viewport{
  overflow:hidden;
  max-width:var(--max);
  margin:0 auto;
  padding: 0.4rem var(--gap) 1.2rem;
}
.carousel-track{
  display:flex;
  gap:1.25rem;
  transition: transform .45s cubic-bezier(.22,.61,.36,1);
  will-change: transform;
}
.t-card{
  flex:0 0 calc(50% - 0.625rem);
  background:var(--paper);
  border:1px solid var(--hairline);
  border-radius:18px;
  padding:2rem 1.9rem;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  min-height:220px;
  box-shadow: 0 1px 2px rgba(10,10,10,0.03);
}
.t-quote{
  font-family:'Fraunces', serif;
  font-size:1.14rem;
  line-height:1.42;
  font-weight:500;
}
.t-quote::before{ content:"\201C"; color:var(--ink-soft); }
.t-quote::after{ content:"\201D"; color:var(--ink-soft); }
.t-person{
  margin-top:1.6rem;
  display:flex;
  align-items:center;
  gap:.75rem;
}
.t-photo{
  width:44px; height:44px;
  border-radius:50%;
  object-fit:cover;
  background:var(--hairline);
  flex-shrink:0;
}
.t-name{ font-weight:600; font-size:0.92rem; }
.t-role{ font-size:0.8rem; color:var(--ink-soft); display:flex; align-items:center; gap:.4rem; }
.t-logo{ width:16px; height:16px; object-fit:contain; opacity:.85; }

.carousel-nav{
  display:flex;
  gap:.6rem;
  justify-content:flex-end;
  max-width:var(--max);
  margin: 0 auto;
  padding: 0 var(--gap);
}
.c-btn{
  width:40px; height:40px;
  border-radius:50%;
  border:1px solid var(--hairline-strong);
  background:var(--paper);
  display:flex;
  align-items:center;
  justify-content:center;
  transition: border-color .2s ease, background .2s ease, opacity .2s ease;
}
.c-btn:hover{ border-color:var(--ink); background:var(--paper-dim); }
.c-btn:disabled{ opacity:0.3; pointer-events:none; }
.c-btn svg{ width:16px; height:16px; }

@media (max-width: 720px){
  .t-card{ flex-basis:100%; padding:1.6rem 1.4rem; border-radius:14px; }
}

/* ---------- products ---------- */
.product-list{
  max-width:var(--max);
  margin:0 auto;
  padding: 0 var(--gap);
  display:flex;
  flex-direction:column;
  gap:1.4rem;
}
.product-row{
  display:grid;
  grid-template-columns: 128px 1fr auto;
  gap:1.8rem;
  align-items:center;
  padding:1.6rem;
  border:1px solid var(--hairline);
  border-radius:var(--radius);
  background:var(--paper);
  text-decoration:none;
  color:inherit;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.product-row:hover{
  border-color:var(--ink);
  transform:translateY(-2px);
  box-shadow: 0 10px 24px -18px rgba(10,10,10,0.35);
}
.product-cover{
  width:128px;
  height:168px;
  background: var(--paper-dim);
  border:1px solid var(--hairline-strong);
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  overflow:hidden;
}
.product-cover::after{
  content:"";
  position:absolute;
  left:10px; top:0; bottom:0;
  width:1px;
  background:var(--hairline-strong);
}
.product-cover svg{ width:42px; height:42px; color:var(--ink); }
.product-name{
  font-size:1.32rem;
  margin-bottom:.35rem;
}
.product-desc{ color:var(--ink-soft); font-size:0.96rem; max-width:52ch; }
.product-meta{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:.35rem;
  text-align:right;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  color:var(--ink-soft);
  white-space:nowrap;
}
.product-meta .ver{
  color:var(--ink);
  background:var(--paper-dim);
  border:1px solid var(--hairline-strong);
  padding:.2rem .55rem;
  border-radius:20px;
}
.product-cta{
  margin-top:.3rem;
  font-size:0.78rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--ink);
  display:flex;
  align-items:center;
  gap:.3rem;
}
@media (max-width: 700px){
  .product-row{ grid-template-columns: 84px 1fr; padding:1.1rem; gap:1.1rem; }
  .product-cover{ width:84px; height:112px; }
  .product-meta{ grid-column:1 / -1; flex-direction:row; align-items:center; justify-content:space-between; text-align:left; }
  .product-name{ font-size:1.12rem; }
}

/* ---------- contact ---------- */
.contact-grid{
  max-width:var(--max);
  margin:0 auto;
  padding: 0 var(--gap);
  display:grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap:2.5rem;
  align-items:center;
}
.contact-side{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:1rem;
}
.profile-photo{
  width:96px; height:96px;
  border-radius:50%;
  border:1px dashed var(--hairline-strong);
  background:var(--paper-dim);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--hairline-strong);
}
.profile-photo svg{ width:40px; height:40px; }
.contact-name{ font-family:'Fraunces', serif; font-size:1.3rem; font-weight:600; }

.contact-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.95rem; }
.contact-list a{
  display:flex;
  align-items:center;
  gap:.8rem;
  text-decoration:none;
  padding:.75rem .9rem;
  border:1px solid var(--hairline);
  border-radius:var(--radius);
  transition: border-color .2s ease, background .2s ease;
}
.contact-list a:hover{ border-color:var(--ink); background:var(--paper-dim); }
.contact-list svg{ width:18px; height:18px; color:var(--ink); flex-shrink:0; }
.contact-list span{ font-size:0.94rem; }
.contact-list small{ display:block; color:var(--ink-soft); font-size:0.74rem; margin-top:2px; }

@media (max-width: 820px){
  .contact-grid{ grid-template-columns:1fr; }
  .contact-side{ flex-direction:row; align-items:center; }
}

/* ---------- footer ---------- */
footer{
  padding: 2rem var(--gap) 3rem;
  max-width:var(--max);
  margin:0 auto;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:1.6rem;
  flex-wrap:wrap;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.74rem;
  color:var(--ink-soft);
  position:relative;
  z-index:1;
}
footer a:hover{ color:var(--ink); }

/* ================================================================
   Product page (standalone download page)
   ================================================================ */
.product-hero{
  position:relative;
  z-index:1;
  max-width:var(--max);
  margin:0 auto;
  padding: clamp(6.5rem, 13vw, 9rem) var(--gap) 3rem;
  display:grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items:start;
}
.product-hero-cover{
  width:220px;
  height:288px;
  background: var(--paper-dim);
  border:1px solid var(--hairline-strong);
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
}
.product-hero-cover::after{
  content:"";
  position:absolute;
  left:16px; top:0; bottom:0;
  width:1px;
  background:var(--hairline-strong);
}
.product-hero-cover svg{ width:64px; height:64px; color:var(--ink); }

.product-title{ font-size:clamp(2rem, 4.4vw, 2.9rem); margin-top:.5rem; }
.product-tagline{ color:var(--ink-soft); margin-top:.7rem; max-width:56ch; font-size:1.05rem; }

.product-facts{
  margin-top:1.8rem;
  display:flex;
  gap:1.8rem;
  flex-wrap:wrap;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  color:var(--ink-soft);
}
.product-facts strong{ display:block; color:var(--ink); font-size:0.92rem; font-family:'IBM Plex Sans',sans-serif; font-weight:600; }

.download-btn{
  margin-top:2rem;
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  background:var(--ink);
  color:var(--paper);
  text-decoration:none;
  padding:.9rem 1.5rem;
  border-radius:var(--radius);
  font-size:0.92rem;
  font-weight:500;
  transition: background .2s ease, transform .2s ease;
}
.download-btn:hover{ background:#333; transform:translateY(-1px); }
.download-btn svg{ width:18px; height:18px; }
.download-note{ margin-top:.8rem; font-size:0.78rem; color:var(--ink-soft); font-family:'IBM Plex Mono', monospace; }

.product-body{
  max-width:var(--max);
  margin:0 auto;
  padding: 0 var(--gap);
}
.product-body h3{ font-size:1.3rem; margin-bottom:.8rem; }
.product-body p{ color:var(--ink-soft); max-width:66ch; }
.product-body ul{ color:var(--ink-soft); max-width:60ch; padding-left:1.2rem; }
.product-body li{ margin-bottom:.4rem; }

/* ---------- community / comments ---------- */
.community-head p{
  color:var(--ink-soft);
  max-width:60ch;
  margin-top:.6rem;
}
.giscus-shell{
  max-width:var(--max);
  margin:0 auto;
  padding: 0 var(--gap);
}

/* fallback thread mock (used only if Giscus script is not configured yet) */
.thread{ max-width:var(--max); margin:0 auto; padding:0 var(--gap); display:flex; flex-direction:column; gap:1.1rem; }
.thread-form{ display:flex; flex-direction:column; gap:.7rem; margin-bottom:.6rem; }
.thread-form textarea{
  font-family:'IBM Plex Sans', sans-serif;
  font-size:1rem; /* 16px avoids iOS auto-zoom on focus */
  padding:.9rem 1rem;
  border:1px solid var(--hairline-strong);
  border-radius:var(--radius);
  background:var(--paper);
  resize:vertical;
  min-height:90px;
  width:100%;
}
.thread-form textarea:focus{ outline:2px solid var(--ink); outline-offset:1px; border-color:transparent; }
.thread-form button{
  align-self:flex-start;
  background:var(--ink);
  color:var(--paper);
  border:none;
  padding:.65rem 1.3rem;
  border-radius:var(--radius);
  font-size:0.86rem;
}
.thread-form button:hover{ background:#333; }

.comment{ border:1px solid var(--hairline); border-radius:var(--radius); padding:1.1rem 1.2rem; background:var(--paper); }
.comment-head{ display:flex; align-items:center; gap:.6rem; margin-bottom:.5rem; flex-wrap:wrap; }
.comment-avatar{ width:32px; height:32px; border-radius:50%; }
.comment-name{ font-weight:600; font-size:0.9rem; }
.comment-time{ font-size:0.74rem; color:var(--ink-soft); font-family:'IBM Plex Mono', monospace; }
.comment-badge{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--ink);
  border:1px solid var(--ink);
  padding:.1rem .45rem;
  border-radius:20px;
}
.comment-body{ font-size:0.94rem; color:var(--ink-soft); }
.comment-reply-btn{
  margin-top:.5rem;
  padding:0;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.74rem;
  color:var(--ink-soft);
  text-decoration:underline;
}
.comment-reply-btn:hover{ color:var(--ink); }
.comment-replies{ margin-top:1rem; margin-left:1.6rem; padding-left:1.2rem; border-left:2px solid var(--hairline); display:flex; flex-direction:column; gap:1rem; }

@media (max-width: 700px){
  .product-hero{ grid-template-columns: 1fr; }
  .product-hero-cover{ width:150px; height:196px; }
}

/* ---------- small-phone refinements ---------- */
@media (max-width: 480px){
  .header-inner{ padding: 0.9rem 1.1rem; }
  .brand{ font-size:1.02rem; }
  .nav-home, .nav-back{ font-size:0.7rem; padding:.42rem .7rem; }
  .about-body{ padding: 0 1.1rem; }
  section{ padding: 2.6rem 0; }
  .section-head{ padding: 0 1.1rem 1.6rem; }
  .contact-list a{ padding:.65rem .75rem; }
  .t-card{ padding:1.3rem 1.1rem; }
  .product-facts{ gap:1.1rem 1.4rem; }
}