/* Národní průzkum — styles
 * Paleta: chladné institucionální neutrály + národní červená jako jediný akcent.
 * Typografie: Fraunces (display, hlas otázky) + Archivo (text, UI, čísla).
 * Jednotématický světlý design — pozadí i barvy vždy explicitně, nikdy zděděné.
 */
:root{
  --ink:#0f1317;
  --ink-2:#414b55;
  --ink-3:#737f8b;
  --bg:#ffffff;
  --surface:#eff2f5;
  --surface-2:#e6ebf0;
  --line:#dce2e8;
  --accent:#c4162b;
  --accent-dark:#9c1122;
  --accent-soft:#fbeaec;
  --ok:#146b4e;
  --warn:#8a5200;
  --warn-bg:#fdf3e2;

  --display:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Archivo",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;

  --radius:12px;
  --shadow:0 1px 2px rgba(15,19,23,.06), 0 18px 40px -20px rgba(15,19,23,.28);
  --step:clamp(56px,7vw,96px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3{margin:0 0 .5em;line-height:1.12;text-wrap:balance}
h1,h2{font-family:var(--display);font-weight:700;font-variation-settings:"SOFT" 0,"WONK" 1}
h3{font-family:var(--sans);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:720px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;
  font-family:var(--display);font-size:19px;font-weight:600;letter-spacing:-.015em}
.logo strong{font-weight:700}
.logo-mark{width:11px;height:22px;border-radius:2px;background:var(--accent);flex:none;
  box-shadow:16px 0 0 -5px var(--ink), 32px 0 0 -8px var(--ink-3);margin-right:26px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;text-decoration:none;
  font-family:var(--sans);font-weight:600;font-size:16px;letter-spacing:-.005em;
  padding:14px 26px;border:0;border-radius:8px;cursor:pointer;
  transition:background .15s ease,transform .12s ease}
.btn:hover{background:var(--accent-dark)}
.btn:active{transform:translateY(1px)}
.btn:disabled{background:var(--surface-2);color:var(--ink-3);cursor:not-allowed}
.btn-sm{padding:9px 17px;font-size:15px}
.btn-lg{padding:17px 32px;font-size:17px}
.btn-block{width:100%}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--surface)}

/* ---------- hero ---------- */
.hero{padding:var(--step) 0;background:linear-gradient(180deg,var(--surface) 0%,var(--bg) 78%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin:0 0 18px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent)}
h1{font-size:clamp(40px,5.4vw,64px);letter-spacing:-.025em}
h1 em{font-style:italic;color:var(--accent)}
.lead{font-size:20px;line-height:1.5;color:var(--ink-2);max-width:30em;margin-bottom:30px}
.lead strong{color:var(--ink);font-weight:600}
.micro{list-style:none;display:flex;flex-wrap:wrap;gap:10px 24px;padding:0;margin:22px 0 0;
  font-size:14px;font-weight:500;color:var(--ink-3)}
.micro li{display:flex;align-items:center;gap:8px}
.micro li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ok);flex:none}

/* ---------- phone mock ---------- */
.hero-card{display:flex;flex-direction:column;gap:14px}
.phone{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:20px;
  box-shadow:var(--shadow)}
.phone-top{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:16px;
  display:flex;align-items:center;gap:9px}
.phone-top::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--ok);flex:none}
.phone-sender{font-size:13px;font-weight:600;color:var(--ink-2);letter-spacing:.01em}
.bubble{max-width:86%;padding:11px 15px;border-radius:15px;font-size:15px;line-height:1.45;
  margin-bottom:10px}
.bubble.in{background:var(--surface);border-bottom-left-radius:4px}
.bubble.out{background:var(--ink);color:#fff;margin-left:auto;border-bottom-right-radius:4px;font-weight:500}
.phone-note{margin:0;text-align:center;font-size:14px;color:var(--ink-3)}

/* ---------- sections ---------- */
.section{padding:var(--step) 0;border-top:1px solid var(--line)}
.section-alt{background:var(--surface);border-top:0}
.section-title{font-size:clamp(28px,3.6vw,40px);letter-spacing:-.02em;max-width:16em}
.section-sub{color:var(--ink-2);max-width:42em;margin:-4px 0 0;font-size:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{margin:0;font-size:16px;color:var(--ink-2)}

/* ---------- katalog ---------- */
.survey-cat{display:block;font-size:11px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-3);margin-bottom:12px}
.survey-q{list-style:none;padding:16px 0 0;margin:18px 0 0;border-top:1px solid var(--line)}
.survey-q li{font-family:var(--display);font-size:15px;font-style:italic;color:var(--ink-2);
  margin-bottom:8px;line-height:1.4}
.chips{display:flex;gap:6px;margin-top:18px}
.chip{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 10px;border-radius:5px;background:var(--surface);color:var(--ink-2)}

/* ---------- segmenty ---------- */
.segments-block{margin-top:48px;padding-top:36px;border-top:1px solid var(--line)}
.segments-title{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:20px}
.segments{list-style:none;padding:0;margin:0;display:grid;gap:14px;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.segments li{display:flex;flex-direction:column;gap:4px;padding-left:14px;
  border-left:2px solid var(--accent)}
.segments strong{font-size:15px;font-weight:700}
.segments span{font-size:14px;color:var(--ink-2);line-height:1.45}

/* ---------- metodika ---------- */
.method{list-style:none;padding:0;margin:40px 0 0;display:grid;gap:2px;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.method li{background:var(--bg);padding:24px 26px}
.method h3{font-size:16px;margin-bottom:6px}
.method p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.5}

/* ---------- postup (skutečná sekvence → čísla mají význam) ---------- */
.steps{list-style:none;padding:0;margin:40px 0 0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.steps.steps-4{grid-template-columns:repeat(4,1fr);gap:16px}
.steps.steps-4 li{padding:24px 22px}
.steps li{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  position:relative}
.step-n{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:50%;background:var(--ink);color:#fff;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:16px}
.steps h3{font-size:18px}
.steps p{margin:0;font-size:16px;color:var(--ink-2)}

/* ---------- sekce pro příjemce SMS (tmavá) ---------- */
.section-cta{background:var(--ink);color:#fff;border-top:0}
.section-cta h2{font-size:clamp(30px,3.6vw,42px);color:#fff;letter-spacing:-.02em}
.section-cta .lead{color:#9aa6b2;max-width:40em;margin-bottom:0}
.section-cta .lead strong{color:#fff;font-weight:600}
.section-cta .method{margin-top:34px;background:rgba(255,255,255,.16);
  border-color:rgba(255,255,255,.16)}
.section-cta .method li{background:var(--ink)}
.section-cta .method h3{color:#fff}
.section-cta .method p{color:#9aa6b2}
.section-cta .method strong{color:#fff;font-weight:600}

/* ---------- faq ---------- */
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{display:flex;justify-content:space-between;align-items:baseline;gap:20px;
  font-size:17px;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:22px;font-weight:400;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:12px 0 0;font-size:16px;color:var(--ink-2);max-width:60ch}

.todo{display:inline-block;background:var(--warn-bg);color:var(--warn);
  font-size:11px;font-weight:700;letter-spacing:.06em;padding:3px 8px;border-radius:5px;margin-left:6px}
.notice{background:var(--warn-bg);color:var(--warn);padding:14px 16px;border-radius:8px;font-size:15px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:30px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15px;color:var(--ink-3)}

@media (max-width:1000px){
  .steps.steps-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:42px}
  .grid-3,.steps,.steps.steps-4{grid-template-columns:1fr}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .logo-mark{margin-right:24px}
}