/* =========================================================
   ToolChest — Design tokens
   Display: Space Grotesk / Body: Inter / Utility: JetBrains Mono
   ========================================================= */
:root{
  --ink:        #14161f;
  --ink-soft:   #454a58;
  --slate:      #6b7280;
  --paper:      #fafaf9;
  --panel:      #ffffff;
  --line:       #e4e1dc;
  --line-soft:  #edebe6;
  --indigo:     #4f3cc9;
  --blue:       #2e6ff2;
  --mint:       #12a877;
  --mint-soft:  #e5f6ef;
  --amber:      #e08a2c;

  --grad-hero:  linear-gradient(115deg, var(--indigo) 0%, var(--blue) 100%);

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;

  --shadow-card: 0 1px 2px rgba(20,22,31,0.04), 0 8px 24px -12px rgba(20,22,31,0.10);
  --shadow-card-hover: 0 4px 10px rgba(20,22,31,0.06), 0 20px 40px -16px rgba(79,60,201,0.22);

  --maxw: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
p{ margin: 0 0 1em; color: var(--ink-soft); }
.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.mono{ font-family: var(--font-mono); }

:focus-visible{
  outline: 2.5px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* reduced motion */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* =========================================================
   Eyebrow / section labels — mono, ties to "tool index" idea
   ========================================================= */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--indigo);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{
  content: "";
  width: 6px; height: 6px;
  border-radius: 2px;
  background: var(--grad-hero);
  display: inline-block;
}

/* =========================================================
   Header / nav — purple → blue gradient (per brief)
   ========================================================= */
.site-header{
  background: var(--grad-hero);
  position: relative;
  z-index: 40;
}
.nav{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: #fff;
}
.brand-mark{
  width: 34px; height:34px;
  border-radius: 9px;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.35);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-mono);
  font-weight: 700;
  color:#fff;
  font-size: 14px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap: 28px;
  list-style:none;
  margin:0; padding:0;
}
.nav-links a{
  color: rgba(255,255,255,0.88);
  font-size: 14.5px;
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{
  color:#fff;
  border-color: rgba(255,255,255,0.75);
}
.nav-search{
  display:flex; align-items:center; gap:8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.30);
  border-radius: 999px;
  padding: 8px 14px;
  min-width: 190px;
}

.nav-search input{
  background: transparent !important;
  border: none !important;
  outline: none !important;
  border-radius: 999px !important;
  padding: 0 !important;
  box-shadow: none !important;
  color: #fff !important;
  font-size: 13.5px;
  font-family: var(--font-body);
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
}

.nav-search input::placeholder{ color: rgba(255,255,255,0.75); }
.nav-search svg{ flex-shrink:0; opacity:0.85; }

.nav-toggle{
  display:none;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  width: 38px; height: 38px;
  color: #fff;
  align-items:center; justify-content:center;
}

@media (max-width: 860px){
  .nav-search{ display:none; }
  .nav-links{
    position:absolute; top: 100%; left:0; right:0;
    background: var(--indigo);
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 24px 18px;
    gap: 14px;
    display: none;
  }
  .nav-links.open{ display:flex; }
  .nav-toggle{ display:flex; }
}

/* =========================================================
   Hero — blueprint / graph-paper backdrop (signature texture)
   ========================================================= */
.hero{
  position: relative;
  background:
    linear-gradient(180deg, rgba(79,60,201,0.05), rgba(250,250,249,0) 55%),
    repeating-linear-gradient(0deg, transparent 0 39px, var(--line-soft) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, var(--line-soft) 39px 40px),
    var(--paper);
  padding: 84px 24px 72px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::before{
  /* corner crop marks, reinforces "precision tool" motif */
  content:"";
  position:absolute; inset: 28px;
  border: 1px dashed rgba(79,60,201,0.16);
  border-radius: 26px;
  pointer-events:none;
}
.hero-inner{
  max-width: 760px;
  margin: 0 auto;
  text-align:center;
  position: relative;
}
.hero .eyebrow{ justify-content:center; margin-bottom: 18px; }
.hero h1{
  font-size: clamp(38px, 6vw, 60px);
  font-weight: 700;
  margin-bottom: 20px;
}
.hero h1 .accent{
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub{
  font-size: 17.5px;
  color: var(--ink-soft);
  max-width: 540px;
  margin: 0 auto 32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn-primary{
  background: var(--grad-hero);
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(79,60,201,0.55);
}
.btn-primary:hover{ transform: translateY(-1px); box-shadow: 0 14px 30px -8px rgba(79,60,201,0.6); }
.btn-ghost{
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover{ border-color: var(--indigo); color: var(--indigo); }
.btn-block{ width:100%; justify-content:center; }

.hero-frame{
  display:inline-block;
  position: relative;
  padding: 6px;
}
.hero-frame::before, .hero-frame::after,
.hero-frame > .cta-corner-tl, .hero-frame > .cta-corner-br{ content:""; }
.corner{
  position:absolute;
  width: 14px; height: 14px;
  border: 2px solid var(--indigo);
  opacity: 0.55;
}
.corner.tl{ top:-2px; left:-2px; border-right:none; border-bottom:none; }
.corner.br{ bottom:-2px; right:-2px; border-left:none; border-top:none; }

/* stat strip under hero button */
.hero-meta{
  display:flex; justify-content:center; gap: 28px;
  margin-top: 34px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--slate);
  flex-wrap: wrap;
}
.hero-meta span{ display:flex; align-items:center; gap:6px; }
.hero-meta .dot{ width:5px;height:5px;border-radius:50%; background: var(--mint); display:inline-block; }

/* =========================================================
   Section shell
   ========================================================= */
.section{ padding: 72px 24px; }
.section-head{
  display:flex; align-items:baseline; justify-content:space-between;
  margin-bottom: 34px; gap: 20px; flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}
.section-head h2{ font-size: 28px; }
.section-head .count{ color: var(--slate); font-family: var(--font-mono); font-size: 13px; }

/* =========================================================
   Tool cards + live "readout strip" (signature element)
   ========================================================= */
.tool-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 980px){ .tool-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px){ .tool-grid{ grid-template-columns: 1fr; } }

.tool-card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 24px 0;
  display:flex; flex-direction:column;
  box-shadow: var(--shadow-card);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  overflow: hidden;
}
.tool-card:hover{
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(79,60,201,0.25);
}
.tool-icon{
  width: 46px; height:46px;
  border-radius: 11px;
  display:flex; align-items:center; justify-content:center;
  color:#fff;
  margin-bottom: 18px;
}
.tool-card h3{ font-size: 18.5px; margin-bottom: 8px; }
.tool-card p{ font-size: 14px; margin-bottom: 20px; flex-grow: 1; }
.tool-link{
  font-size: 13.5px; font-weight: 600; color: var(--indigo);
  display:flex; align-items:center; gap: 6px;
  padding-bottom: 18px;
}
.tool-link svg{ transition: transform .15s ease; }
.tool-card:hover .tool-link svg{ transform: translateX(3px); }

.readout{
  margin: 0 -24px 0;
  border-top: 1px solid var(--line-soft);
  background: #101225;
  color: #d7ffe9;
  font-family: var(--font-mono);
  font-size: 12.5px;
  padding: 12px 24px;
  display:flex; align-items:center; justify-content:space-between;
  gap: 10px;
  min-height: 44px;
}
.readout .blink{ opacity:1; animation: blink 1.1s steps(1) infinite; }
@keyframes blink{ 50%{ opacity:0.15; } }
.readout-tag{ color:#8891c9; font-size:11px; letter-spacing:0.08em; text-transform:uppercase; }

/* icon color variants */
.i-purple{ background: linear-gradient(135deg,#7c5ff0,#5a3adf); }
.i-blue{ background: linear-gradient(135deg,#3b8bf7,#2e6ff2); }
.i-indigo{ background: linear-gradient(135deg,#4f3cc9,#2e6ff2); }
.i-mint{ background: linear-gradient(135deg,#1ec98a,#0f9d6c); }

/* =========================================================
   Sub-hero for tool pages (smaller gradient band + breadcrumb)
   ========================================================= */
.tool-hero{
  background: var(--grad-hero);
  padding: 30px 24px 74px;
  color: #fff;
}
.breadcrumb{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: rgba(255,255,255,0.75);
  display:flex; gap:8px; margin-bottom: 22px;
}
.breadcrumb a{ color: rgba(255,255,255,0.85); }
.breadcrumb a:hover{ color:#fff; text-decoration:underline; }
.tool-hero-head{ max-width: 640px; }
.tool-hero-head .eyebrow{ color: rgba(255,255,255,0.85); }
.tool-hero-head .eyebrow::before{ background:#fff; }
.tool-hero-head h1{ color:#fff; font-size: clamp(30px,4.2vw,42px); margin: 14px 0 12px; }
.tool-hero-head p{ color: rgba(255,255,255,0.86); font-size: 16px; max-width: 520px; }

/* instrument panel that holds the working tool, pulled up over the hero */
.panel{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px -20px rgba(20,22,31,0.25);
  margin: -46px auto 0;
  max-width: var(--maxw);
  padding: 30px;
  position: relative;
}
.panel-bezel{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.panel-bezel .led{
  width:8px; height:8px; border-radius:50%;
  background: var(--mint); box-shadow: 0 0 0 3px var(--mint-soft);
}
.panel-bezel-title{
  display:flex; align-items:center; gap:10px;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--slate);
  text-transform: uppercase; letter-spacing:.08em;
}

/* =========================================================
   Generic form controls used across tools
   ========================================================= */
label{
  display:block; font-size: 13px; font-weight:600; color: var(--ink-soft);
  margin-bottom: 8px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing:.03em;
}
input[type="text"], input[type="url"], input[type="number"], textarea, select{
  width:100%;
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  outline: none;
  transition: border-color .15s ease;
}
input:focus, textarea:focus, select:focus{ border-color: var(--indigo); }
textarea{ resize: vertical; min-height: 130px; font-family: var(--font-body); }

.field{ margin-bottom: 18px; }
.row{ display:flex; gap: 16px; flex-wrap: wrap; }
.row > .field{ flex:1; min-width: 160px; }

/* =========================================================
   Ad slot placeholders (structural only — no live ad code)
   ========================================================= */
.ad-slot{
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  background: #f5f4f1;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align:center;
  padding: 18px;
  letter-spacing: .04em;
}
.ad-slot.leaderboard{ margin: 40px auto; max-width: var(--maxw); min-height: 90px; display:flex; align-items:center; justify-content:center; }
.ad-slot.in-content{ margin: 32px 0; min-height: 100px; display:flex; align-items:center; justify-content:center; }

/* =========================================================
   SEO content sections on tool pages
   ========================================================= */
.content-grid{
  display:grid; grid-template-columns: 2fr 1fr; gap: 48px;
  max-width: var(--maxw); margin: 0 auto; padding: 56px 24px;
}
@media (max-width: 900px){ .content-grid{ grid-template-columns: 1fr; } }
.content-grid h2{ font-size: 22px; margin: 30px 0 12px; }
.content-grid h2:first-child{ margin-top:0; }
.content-grid ul{ color: var(--ink-soft); padding-left: 20px; }
.content-grid li{ margin-bottom: 8px; }

.faq-item{
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}
.faq-item summary{
  cursor:pointer; font-weight:600; font-size:15px;
  list-style: none; display:flex; justify-content:space-between; align-items:center;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; font-family: var(--font-mono); color: var(--indigo); font-size:18px; }
.faq-item[open] summary::after{ content:"–"; }
.faq-item p{ margin-top:10px; font-size:14px; }

.sidebar-card{
  background: var(--panel); border:1px solid var(--line); border-radius: var(--radius-md);
  padding: 22px; margin-bottom: 20px;
}
.sidebar-card h3{ font-size:15px; margin-bottom: 12px; }
.sidebar-links{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px; }
.sidebar-links a{ font-size: 14px; color: var(--indigo); font-weight:500; display:flex; align-items:center; gap:8px; }
.sidebar-links a:hover{ text-decoration:underline; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 48px 24px 28px;
  background: var(--panel);
}
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px; max-width: var(--maxw); margin: 0 auto 32px;
}
@media (max-width: 760px){ .footer-grid{ grid-template-columns: repeat(2,1fr); } }
.footer-grid h4{
  font-family: var(--font-mono); font-size: 12px; text-transform:uppercase; letter-spacing:.08em;
  color: var(--slate); margin-bottom: 14px;
}
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-grid a{ font-size:14px; color: var(--ink-soft); }
.footer-grid a:hover{ color: var(--indigo); }
.footer-bottom{
  max-width: var(--maxw); margin: 0 auto;
  border-top: 1px solid var(--line-soft);
  padding-top: 20px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; color: var(--slate);
}

/* utility */
.center{ text-align:center; }
.mt-lg{ margin-top: 32px; }
.hidden{ display:none !important; }
.copy-btn{
  background: var(--mint-soft); color: var(--mint); border: none;
  font-family: var(--font-mono); font-size: 12.5px; font-weight:700;
  padding: 8px 14px; border-radius: 8px; cursor:pointer;
}
.copy-btn:hover{ filter: brightness(0.95); }