/* ============================================================
   SpyApp — Design System
   Modern editorial. Bold ink + signal accents.
   ============================================================ */

:root{
  /* Palette */
  --ink:        #0e1116;
  --ink-2:      #161b23;
  --paper:      #f7f5ef;
  --paper-2:    #efece2;
  --line:       #e3dfd2;
  --line-dk:    #242c38;

  --accent:     #ff4d2e;   /* signal red-orange */
  --accent-2:   #1f8a5b;   /* trust green */
  --accent-3:   #2456ff;   /* link blue */
  --warn:       #e8a400;

  --text:       #15181d;
  --text-soft:  #4d535d;
  --text-mut:   #7b818b;
  --on-ink:     #f3f1ea;
  --on-ink-soft:#a9b0bd;

  /* Type */
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --body:    "Spline Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:    "Spline Sans Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Space */
  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --radius: 14px;
  --radius-lg: 22px;

  --shadow: 0 1px 2px rgba(14,17,22,.06), 0 8px 28px rgba(14,17,22,.08);
  --shadow-lg: 0 2px 6px rgba(14,17,22,.08), 0 24px 60px rgba(14,17,22,.16);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--body);
  color:var(--text);
  background:var(--paper);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--accent-3);text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.08;letter-spacing:-.02em;color:var(--text);margin:0 0 .5em}
h1{font-size:clamp(2.4rem,6vw,4.3rem);font-weight:600}
h2{font-size:clamp(1.8rem,4vw,2.9rem)}
h3{font-size:clamp(1.3rem,2.6vw,1.7rem)}
h4{font-size:1.15rem}
p{margin:0 0 1.1em}
.lead{font-size:clamp(1.15rem,2.2vw,1.4rem);line-height:1.5;color:var(--text-soft)}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap-narrow{max-width:760px;margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(56px,9vw,120px)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:500;margin:0 0 1rem}

/* ---------- Buttons ---------- */
.btn{
  --bg:var(--ink);--fg:var(--on-ink);
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--body);font-weight:600;font-size:1rem;
  padding:.85em 1.5em;border-radius:100px;border:2px solid var(--bg);
  background:var(--bg);color:var(--fg);cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow);text-decoration:none}
.btn-accent{--bg:var(--accent);--fg:#fff}
.btn-ghost{--bg:transparent;--fg:var(--text);border-color:var(--text)}
.btn-ghost:hover{--bg:var(--text);--fg:var(--paper)}
.btn-lg{font-size:1.1rem;padding:1em 1.9em}
.btn-on-ink{--bg:var(--paper);--fg:var(--ink)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,239,.82);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:70px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--display);font-weight:600;font-size:1.3rem;color:var(--text);letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .mark{width:34px;height:34px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:.3rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--text-soft);font-weight:500;font-size:.96rem;padding:.5em .8em;border-radius:8px;transition:background .15s,color .15s}
.nav-links a:hover{background:var(--paper-2);color:var(--text);text-decoration:none}
.nav-cta{display:flex;align-items:center;gap:.6rem}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:.4em}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:5px 0;transition:.25s}

@media(max-width:940px){
  .nav-links{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;background:var(--paper);border-bottom:1px solid var(--line);padding:1rem var(--gutter);gap:.2rem;transform:translateY(-130%);transition:transform .3s ease;box-shadow:var(--shadow)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:.8em}
  .nav-toggle{display:block}
  .nav-cta .btn:not(.nav-primary){display:none}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr}}
.hero-art{position:relative}
.tag-row{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.4rem 0}
.tag{font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;background:var(--paper-2);border:1px solid var(--line);color:var(--text-soft);padding:.4em .8em;border-radius:100px}

/* ---------- Cards / grid ---------- */
.grid{display:grid;gap:clamp(1rem,2.5vw,1.8rem)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.g-3,.g-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g-2,.g-3,.g-4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(1.4rem,3vw,2rem);transition:transform .2s,box-shadow .2s,border-color .2s;height:100%}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card .ico{width:54px;height:54px;margin-bottom:1rem}
.card h3{margin-bottom:.4em}
.card p{color:var(--text-soft);margin:0}
.card-link{display:block;color:inherit}
.card-link:hover{text-decoration:none}

.feature-card{position:relative;overflow:hidden}
.feature-card .more{font-family:var(--mono);font-size:.8rem;color:var(--accent);font-weight:500;margin-top:1rem;display:inline-flex;gap:.3em;align-items:center}

/* ---------- Ink section ---------- */
.ink{background:var(--ink);color:var(--on-ink)}
.ink h1,.ink h2,.ink h3,.ink h4{color:var(--on-ink)}
.ink .lead,.ink p{color:var(--on-ink-soft)}
.ink .card{background:var(--ink-2);border-color:var(--line-dk)}
.ink .card p{color:var(--on-ink-soft)}
.ink .eyebrow{color:#ff7a5e}

/* ---------- Stat band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;text-align:center}
@media(max-width:680px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat .num{font-family:var(--display);font-size:clamp(2.2rem,5vw,3.2rem);font-weight:600;line-height:1}
.stat .lbl{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;color:var(--text-mut);text-transform:uppercase;margin-top:.5rem}

/* ---------- Steps ---------- */
.steps{counter-reset:step;display:grid;gap:1.5rem}
.step{display:grid;grid-template-columns:auto 1fr;gap:1.4rem;align-items:start}
.step .n{counter-increment:step;font-family:var(--display);font-size:2rem;font-weight:600;color:var(--accent);width:64px;height:64px;border-radius:50%;border:2px solid var(--accent);display:grid;place-items:center;flex:0 0 auto}
.step .n::before{content:counter(step,decimal-leading-zero)}

/* ---------- FAQ ---------- */
.faq{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:1.3em 0;font-family:var(--display);font-size:1.2rem;font-weight:600;display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.6rem;color:var(--accent);transition:transform .25s;line-height:1}
.faq[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--text-soft);padding-bottom:1.4em;margin:0}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--on-ink-soft);padding-block:clamp(48px,7vw,80px) 32px}
.site-footer a{color:var(--on-ink-soft)}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2rem}
@media(max-width:780px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.foot-grid{grid-template-columns:1fr}}
.foot-grid h4{color:#fff;font-family:var(--mono);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:1rem}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.foot-bottom{border-top:1px solid var(--line-dk);margin-top:2.5rem;padding-top:1.5rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.86rem}

/* ---------- Prose (articles) ---------- */
.prose{font-size:1.12rem;line-height:1.78}
.prose h2{margin-top:2.4em}
.prose h3{margin-top:1.8em}
.prose img,.prose svg,.prose figure{margin:2em 0;border-radius:var(--radius)}
.prose figure{margin-inline:0}
.prose figcaption{font-size:.85rem;color:var(--text-mut);text-align:center;margin-top:.6em;font-family:var(--mono)}
.prose ul,.prose ol{padding-left:1.3em;margin-bottom:1.3em}
.prose li{margin-bottom:.5em}
.prose blockquote{border-left:4px solid var(--accent);margin:1.8em 0;padding:.4em 0 .4em 1.3em;font-family:var(--display);font-size:1.3rem;font-style:italic;color:var(--text-soft)}
.prose code{font-family:var(--mono);background:var(--paper-2);padding:.15em .45em;border-radius:5px;font-size:.88em}
.callout{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent-2);border-radius:var(--radius);padding:1.3rem 1.5rem;margin:2em 0}
.callout strong{color:var(--text)}

/* ---------- Breadcrumb ---------- */
.crumb{font-family:var(--mono);font-size:.8rem;color:var(--text-mut);padding-top:1.5rem}
.crumb a{color:var(--text-mut)}
.crumb a:hover{color:var(--accent)}

/* ---------- Page hero (compact) ---------- */
.page-hero{padding-block:clamp(40px,6vw,72px) clamp(28px,4vw,48px)}
.page-hero .lead{max-width:640px}

/* ---------- Pills / chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.5rem 0}
.chip{font-family:var(--mono);font-size:.8rem;padding:.5em 1em;border-radius:100px;border:1px solid var(--line);background:#fff;color:var(--text-soft);cursor:pointer;transition:.15s}
.chip:hover,.chip.active{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}

/* ---------- Blog list ---------- */
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:transform .2s,box-shadow .2s;height:100%}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.post-card .thumb{aspect-ratio:16/9;background:var(--paper-2);overflow:hidden}
.post-card .thumb svg{width:100%;height:100%}
.post-card .body{padding:1.4rem;display:flex;flex-direction:column;flex:1}
.post-card .cat{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:.6rem}
.post-card h3{font-size:1.25rem;margin-bottom:.5rem}
.post-card p{color:var(--text-soft);font-size:.95rem;margin:0 0 1rem}
.post-card .meta{margin-top:auto;font-size:.82rem;color:var(--text-mut);font-family:var(--mono)}

/* ---------- Utility ---------- */
.center{text-align:center}
.mx-auto{margin-inline:auto}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.maxw-680{max-width:680px}
.divider{height:1px;background:var(--line);border:0;margin:0}
.badge{display:inline-flex;align-items:center;gap:.4em;font-family:var(--mono);font-size:.78rem;font-weight:500;padding:.4em .9em;border-radius:100px;background:rgba(31,138,91,.12);color:var(--accent-2)}
.badge-warn{background:rgba(232,164,0,.14);color:#9a6c00}
.badge-danger{background:rgba(255,77,46,.12);color:var(--accent)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Forms ---------- */
.field{margin-bottom:1.2rem}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.4rem}
.field input,.field textarea,.field select{
  width:100%;font-family:var(--body);font-size:1rem;padding:.85em 1em;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);transition:border .15s,box-shadow .15s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,77,46,.12)}

/* ---------- Print/perf ---------- */
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}