/* =========================================================
   PDFOrchard — shared stylesheet
   Design: ink/paper palette, Fraunces display + IBM Plex Sans body
   Fonts are loaded via <link> tags in the HTML head (see page_shell in
   build.py), not @import here -- @import inside a CSS file forces the
   browser to fetch this stylesheet, parse it, THEN discover and start
   fetching the font stylesheet, serializing two round-trips instead of
   letting the browser's preloader fetch both in parallel as soon as it
   sees the <link> tags while still parsing the HTML.
   ========================================================= */

:root{
  --paper: #F2F0EA;
  --paper-raised: #FBFAF6;
  --ink: #171B22;
  --ink-soft: #454C58;
  --line: #D9D5C9;
  --teal: #1F6F63;
  --teal-deep: #14504a;
  --amber: #C77D2E;
  --danger: #A6402E;
  --shadow: 220 20% 10%;
  --radius: 3px;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, Segoe UI, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --maxw: 1180px;
}

:root[data-theme="dark"]{
  --paper: #14171D;
  --paper-raised: #1B1F27;
  --ink: #EDEBE3;
  --ink-soft: #A9AEB9;
  --line: #2B303A;
  --teal: #4FBBAA;
  --teal-deep: #7fd5c8;
  --amber: #E0A75E;
  --danger: #E08877;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper: #14171D;
    --paper-raised: #1B1F27;
    --ink: #EDEBE3;
    --ink-soft: #A9AEB9;
    --line: #2B303A;
    --teal: #4FBBAA;
    --teal-deep: #7fd5c8;
    --amber: #E0A75E;
    --danger: #E08877;
  }
}

*{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:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--teal-deep);}
:root[data-theme="dark"] a, :root:not([data-theme="light"]) a { color: var(--teal); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:2px;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.1rem,4vw,3.4rem);font-weight:500;}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1em;color:var(--ink-soft);}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.skip-link{position:absolute;left:-999px;top:0;background:var(--teal);color:#fff;padding:10px 16px;z-index:200;}
.skip-link:focus{left:12px;top:12px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;max-width:var(--maxw);margin:0 auto;padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);}
.brand svg{flex-shrink:0;}
.brand-name{font-family:var(--font-display);font-size:1.15rem;font-weight:600;}
.brand-name .sub{color:var(--teal-deep);}
:root[data-theme="dark"] .brand-name .sub, :root:not([data-theme="light"]) .brand-name .sub{color:var(--teal);}

.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav > ul{list-style:none;display:flex;gap:24px;margin:0;padding:0;align-items:center;}
.main-nav a{text-decoration:none;color:var(--ink);font-weight:500;font-size:.95rem;}
.main-nav a:hover{color:var(--teal-deep);}
:root[data-theme="dark"] .main-nav a:hover, :root:not([data-theme="light"]) .main-nav a:hover{color:var(--teal);}

.has-dropdown{position:relative;}
.dropdown-toggle{background:none;border:none;font:inherit;color:var(--ink);cursor:pointer;display:flex;align-items:center;gap:5px;padding:8px 0;font-weight:500;font-size:.95rem;}
.dropdown-panel{
  display:none;position:absolute;top:100%;left:-16px;
  background:var(--paper-raised);border:1px solid var(--line);
  min-width:460px;padding:18px;border-radius:var(--radius);
  box-shadow:0 12px 28px -8px rgba(0,0,0,.22);
}
.has-dropdown:hover .dropdown-panel,
.has-dropdown:focus-within .dropdown-panel{display:grid;grid-template-columns:1fr 1fr;gap:4px 20px;}
.dropdown-panel .col-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin:6px 0 4px;grid-column:1/-1;}
.dropdown-panel a{display:block;padding:6px 8px;border-radius:var(--radius);font-size:.9rem;}
.dropdown-panel a:hover{background:var(--paper);}

.theme-toggle{
  background:var(--paper-raised);border:1px solid var(--line);border-radius:100px;
  width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
}
.theme-toggle svg{width:18px;height:18px;}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--radius);width:40px;height:40px;cursor:pointer;color:var(--ink);}

/* ---------- Hero ---------- */
.hero{padding:76px 0 56px;border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.eyebrow-plain{color:var(--teal-deep);font-weight:600;font-size:.95rem;margin-bottom:10px;}
:root[data-theme="dark"] .eyebrow-plain, :root:not([data-theme="light"]) .eyebrow-plain{color:var(--teal);}
.hero p.lead{font-size:1.15rem;max-width:46ch;}
.hero-anim{opacity:0;transform:translateY(14px);animation:rise .7s ease forwards;}
.hero-anim.d2{animation-delay:.1s;}
.hero-anim.d3{animation-delay:.2s;}
@keyframes rise{to{opacity:1;transform:none;}}
@media (prefers-reduced-motion: reduce){
  .hero-anim{animation:none;opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

.search-bar{
  display:flex;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--paper-raised);max-width:440px;margin-top:22px;
}
.search-bar input{flex:1;border:none;background:transparent;padding:13px 16px;font:inherit;color:var(--ink);}
.search-bar input:focus{outline:none;}
.search-bar button{border:none;background:var(--teal);color:#fff;padding:0 18px;font-weight:600;cursor:pointer;}

.stack-illustration{position:relative;height:260px;}
.stack-illustration .page{
  position:absolute;width:150px;height:190px;background:var(--paper-raised);
  border:1px solid var(--line);border-radius:4px;left:50%;top:50%;
  box-shadow:0 10px 24px -10px rgba(0,0,0,.25);
}
.stack-illustration .page span{position:absolute;left:16px;right:16px;height:6px;background:var(--line);border-radius:2px;}
.stack-illustration .p1{transform:translate(-50%,-50%) rotate(-9deg) translateX(-46px);}
.stack-illustration .p2{transform:translate(-50%,-50%) rotate(3deg) translateX(14px);}
.stack-illustration .p3{transform:translate(-50%,-50%) rotate(-2deg) translateX(-14px) translateY(6px);}
.stack-illustration:hover .p1{transition:transform .4s ease;transform:translate(-50%,-50%) rotate(0) translateX(0) translateY(-4px);}
.stack-illustration:hover .p2{transition:transform .4s ease .05s;transform:translate(-50%,-50%) rotate(0) translateX(0) translateY(2px);}
.stack-illustration:hover .p3{transition:transform .4s ease .1s;transform:translate(-50%,-50%) rotate(0) translateX(0) translateY(8px);}

/* ---------- Tool grid ---------- */
.tools-section{padding:56px 0;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:24px;gap:16px;flex-wrap:wrap;}
.category-block{margin-bottom:40px;}
.category-title{font-size:.78rem;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-soft);border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:18px;}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;}
.tool-card{
  display:flex;flex-direction:column;gap:10px;padding:20px;
  background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius);
  text-decoration:none;color:var(--ink);transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.tool-card:hover{transform:translateY(-3px);border-color:var(--teal-deep);box-shadow:0 14px 28px -14px rgba(0,0,0,.3);}
.tool-card .icon{width:34px;height:34px;color:var(--teal-deep);}
:root[data-theme="dark"] .tool-card .icon, :root:not([data-theme="light"]) .tool-card .icon{color:var(--teal);}
.tool-card h3{margin:0;font-size:1.05rem;}
.tool-card p{margin:0;font-size:.88rem;}
.tag{display:inline-block;font-size:.68rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);}

/* ---------- Tool workspace page ---------- */
.tool-hero{padding:44px 0 8px;}
.breadcrumb{font-size:.82rem;color:var(--ink-soft);margin-bottom:14px;}
.breadcrumb a{color:var(--ink-soft);}
.workspace{padding:16px 0 60px;}
.workbench{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-raised);
  padding:32px;
}
.dropzone{
  border:1.5px dashed var(--line);border-radius:var(--radius);
  padding:44px 20px;text-align:center;cursor:pointer;transition:border-color .15s ease, background .15s ease;
}
.dropzone:hover, .dropzone.drag{border-color:var(--teal-deep);background:var(--paper);}
.dropzone svg{width:40px;height:40px;color:var(--ink-soft);margin:0 auto 12px;}
.dropzone .browse{color:var(--teal-deep);font-weight:600;text-decoration:underline;}
:root[data-theme="dark"] .dropzone .browse, :root:not([data-theme="light"]) .dropzone .browse{color:var(--teal);}
.file-list{list-style:none;margin:20px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;}
.file-list li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);font-size:.9rem;}
.file-list button{background:none;border:none;color:var(--danger);cursor:pointer;font-size:.85rem;}
.tool-options{margin-top:24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:.82rem;font-weight:600;}
.field input[type="text"],.field input[type="number"],.field input[type="password"],.field select{
  padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);color:var(--ink);font:inherit;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--teal);color:#fff;border:none;padding:13px 26px;border-radius:var(--radius);
  font:inherit;font-weight:600;cursor:pointer;margin-top:24px;
}
.btn:hover{background:var(--teal-deep);}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.btn.secondary{background:transparent;border:1px solid var(--line);color:var(--ink);}
.status-line{margin-top:16px;font-size:.9rem;color:var(--ink-soft);min-height:1.4em;}
.status-line[data-state="ok"]{color:var(--teal-deep);}
.status-line[data-state="error"]{color:var(--danger);}
.privacy-note{display:flex;gap:10px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-top:22px;font-size:.85rem;color:var(--ink-soft);}
.privacy-note svg{width:18px;height:18px;flex-shrink:0;margin-top:1px;color:var(--teal-deep);}

/* ---------- Article ---------- */
.article{padding:8px 0 64px;}
.article-body{max-width:74ch;}
.article-body h2{margin-top:1.6em;}
.article-body ul,.article-body ol{color:var(--ink-soft);padding-left:1.3em;}
.article-body li{margin-bottom:.4em;}
.faq-item{border-top:1px solid var(--line);padding:18px 0;}
.faq-item h3{margin-bottom:.4em;font-size:1.05rem;}

/* ---------- Generic content sections ---------- */
.page-hero{padding:52px 0 24px;border-bottom:1px solid var(--line);}
.content{padding:40px 0 64px;}
.content .container{max-width:820px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-raised);padding:24px;}

/* ---------- Blog ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;}
.post-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-raised);padding:22px;text-decoration:none;color:var(--ink);}
.post-card .date{font-size:.78rem;color:var(--ink-soft);}
.post-card h2{margin:.4em 0;font-size:1.15rem;}

/* ---------- Form ---------- */
.contact-form{display:flex;flex-direction:column;gap:16px;max-width:520px;}
.contact-form label{font-weight:600;font-size:.9rem;}
.contact-form input,.contact-form textarea{padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-raised);color:var(--ink);font:inherit;}
#contact-status{margin-top:4px;font-size:.9rem;color:var(--ink-soft);}
#contact-status[data-state="ok"]{color:var(--teal-deep);}
#contact-status[data-state="error"]{color:var(--danger);}
/* Honeypot: hidden from real visitors (off-screen, not display:none) so
   simple spam bots that skip display:none/visibility:hidden fields still
   fill it in and give themselves away; real users never see or reach it. */
.hp-field{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:48px 0 28px;margin-top:40px;background:var(--paper-raised);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-grid .footer-heading{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin:0 0 14px;font-weight:600;}
.footer-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.footer-grid a{color:var(--ink-soft);text-decoration:none;font-size:.9rem;}
.footer-grid a:hover{color:var(--teal-deep);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:36px;padding-top:20px;border-top:1px solid var(--line);flex-wrap:wrap;gap:12px;}
.social-icons{display:flex;gap:12px;}
.social-icons a{color:var(--ink-soft);}
.footer-bottom p{margin:0;font-size:.82rem;}

/* ---------- Ad slots ---------- */
.ad-slot{
  margin:32px 0;padding:14px;border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--paper-raised);text-align:center;
}
.ad-slot-label{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin-bottom:8px;}
.ad-slot-box{
  min-height:90px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  color:var(--ink-soft);font-size:.85rem;border:1px solid var(--line);border-radius:var(--radius);
  background:repeating-linear-gradient(45deg, var(--paper), var(--paper) 10px, var(--paper-raised) 10px, var(--paper-raised) 20px);
}

/* ---------- Cookie notice ---------- */
.cookie-notice{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:150;max-width:520px;
  background:var(--ink);color:var(--paper);padding:18px 20px;border-radius:var(--radius);
  box-shadow:0 16px 40px -12px rgba(0,0,0,.4);font-size:.88rem;
}
.cookie-notice a{color:var(--teal);}
.cookie-notice p{color:inherit;margin:0;}
.cookie-notice[hidden]{display:none;}

/* ---------- 404 ---------- */
.error-page{padding:100px 0;text-align:center;}
.error-page .code{font-family:var(--font-mono);color:var(--teal-deep);font-size:1.1rem;}

/* ---------- Ad slot placeholders (see README: "Adding real AdSense ad units") ---------- */
.ad-slot{
  margin:40px auto;max-width:970px;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.ad-slot-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);}
.ad-slot-box{
  width:100%;min-height:100px;display:flex;align-items:center;justify-content:center;
  border:1.5px dashed var(--line);border-radius:var(--radius);
  color:var(--ink-soft);font-size:.82rem;background:var(--paper-raised);
  padding:12px;text-align:center;
}

@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;}
  .stack-illustration{height:180px;order:-1;}
  .two-col{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  .main-nav{position:fixed;top:64px;left:0;right:0;bottom:0;background:var(--paper);flex-direction:column;align-items:stretch;padding:20px 24px;overflow-y:auto;display:none;}
  .main-nav.open{display:flex;}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav > ul > li > a, .dropdown-toggle{padding:12px 0;border-bottom:1px solid var(--line);width:100%;justify-content:space-between;}
  .dropdown-panel{position:static;display:none !important;grid-template-columns:1fr;border:none;box-shadow:none;padding:0 0 0 14px;}
  .has-dropdown.open .dropdown-panel{display:grid !important;}
  .nav-toggle{display:block;}
  .footer-grid{grid-template-columns:1fr;}
}