/* ============================================================
   Shuffly website — stylesheet
   Pastel-flat theme, responsive, light + dark mode.
   ============================================================ */

:root{
  --cream:#FFF6E9;   --cream-2:#FFEFD9;
  --cyan:#37C7DB;    --cyan-d:#0E97AB;
  --pink:#F27BA9;    --pink-d:#D14D82;
  --amber:#F5B301;   --amber-d:#C88E00;
  --ink:#3A2230;     --ink-2:#6A5560;
  --card:#FFFFFF;    --line:#F0E3D2;
  --bg:var(--cream); --fg:var(--ink);
  --radius:18px;     --radius-sm:12px;
  --wrap:1120px;     --shadow:0 10px 30px rgba(58,34,48,.08);
  --shadow-lg:0 20px 50px rgba(58,34,48,.14);
  --font:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}

@media (prefers-color-scheme: dark){
  :root{
    --cream:#141019; --cream-2:#1C1626;
    --ink:#F3ECF5; --ink-2:#B7A7C0;
    --card:#1E1826; --line:#2C2436;
    --bg:#0E0B14; --fg:var(--ink);
    --shadow:0 10px 30px rgba(0,0,0,.4);
    --shadow-lg:0 20px 50px rgba(0,0,0,.55);
  }
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);color:var(--fg);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cyan-d);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.15;color:var(--fg);font-weight:800}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.5rem,3.5vw,2.3rem)}
h3{font-size:1.15rem}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.wrap-narrow{max-width:760px}
.section{padding:76px 0}
.section-alt{background:var(--cream-2)}
.eyebrow{display:inline-block;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  font-size:.78rem;color:var(--pink-d);margin-bottom:10px}
.muted{color:var(--ink-2)}
.grad{background:linear-gradient(90deg,var(--cyan-d),var(--pink-d));
  -webkit-background-clip:text;background-clip:text;color:transparent}

.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;
  padding:10px 16px;border-radius:0 0 8px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--cyan);color:#08343b;font-weight:800;border:none;cursor:pointer;
  padding:12px 22px;border-radius:999px;box-shadow:var(--shadow);transition:.18s;
  font-size:1rem;text-decoration:none}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);text-decoration:none}
.btn-lg{padding:15px 30px;font-size:1.08rem}
.btn-small{padding:9px 16px;font-size:.92rem}
.btn-ghost{background:transparent;color:var(--fg);box-shadow:none;border:2px solid var(--line)}
.btn-ghost:hover{border-color:var(--cyan)}
.btn-invert{background:var(--cream);color:var(--ink)}
.pill{display:inline-block;background:var(--card);border:1px solid var(--line);
  padding:7px 15px;border-radius:999px;font-weight:700;font-size:.86rem;box-shadow:var(--shadow)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--fg)}
.brand:hover{text-decoration:none}
.brand-mark{border-radius:10px}
.brand-name{font-size:1.25rem;letter-spacing:.02em}
.primary-nav{display:flex;align-items:center;gap:26px}
.primary-nav a{color:var(--fg);font-weight:600}
.primary-nav a.active{color:var(--cyan-d)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--fg);border-radius:2px;transition:.2s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(120% 120% at 80% 0%,var(--cream-2),var(--bg))}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding:70px 0 90px}
.hero-copy .lead{font-size:1.15rem;color:var(--ink-2);margin:18px 0 28px;max-width:34em}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{list-style:none;display:flex;gap:20px;flex-wrap:wrap;margin-top:26px;
  color:var(--ink-2);font-weight:600;font-size:.95rem}

.hero-art{display:flex;justify-content:center}
.phone{width:230px;height:430px;background:var(--card);border-radius:34px;
  border:8px solid #241b2e;box-shadow:var(--shadow-lg);padding:18px;
  display:flex;align-items:center;justify-content:center}
@media (prefers-color-scheme: dark){.phone{border-color:#000}}
.phone-screen{width:100%;aspect-ratio:1/1;background:var(--cream);border-radius:18px;
  padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:2.6rem;font-weight:900;color:#fff;box-shadow:0 6px 14px rgba(0,0,0,.12);
  animation:pop .6s ease both}
.tile-cyan{background:var(--cyan)}
.tile-pink{background:var(--pink);position:relative}
.tile-amber{background:var(--amber);animation-delay:.15s}
.tile-slot{background:transparent;border:3px dashed var(--cyan);animation:none}
.tile-pink .face{position:absolute;width:60%;height:40%;bottom:22%;
  border-bottom:5px solid #4A2333;border-radius:0 0 40px 40px}
.tile-pink .face::before,.tile-pink .face::after{content:"";position:absolute;
  width:9px;height:9px;background:#4A2333;border-radius:50%;top:-16px}
.tile-pink .face::before{left:6px}.tile-pink .face::after{right:6px}
@keyframes pop{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}
.hero-wave{height:40px;background:var(--section-alt,transparent)}

/* ---------- Trust strip ---------- */
.trust{background:var(--ink);color:#fff}
@media (prefers-color-scheme: dark){.trust{background:#241b2e}}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:26px 0;gap:14px}
.trust-grid strong{display:block;font-size:1.7rem;color:var(--amber)}
.trust-grid span{font-size:.86rem;opacity:.85}

/* ---------- Section heads ---------- */
.section-head{text-align:center;max-width:640px;margin:0 auto 44px}
.section-head p{color:var(--ink-2);margin-top:10px}

/* ---------- Features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow);transition:.2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-icon{font-size:2rem;margin-bottom:12px}
.feature-card p{color:var(--ink-2);font-size:.95rem;margin-top:6px}

/* ---------- Screenshots ---------- */
.screens-row{display:flex;gap:18px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory}
.screens-row img{flex:0 0 auto;width:230px;border-radius:22px;border:1px solid var(--line);
  box-shadow:var(--shadow);scroll-snap-align:center;background:var(--card)}
.screens-note{text-align:center;color:var(--ink-2);font-size:.88rem}

/* ---------- Steps ---------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;text-align:center;box-shadow:var(--shadow)}
.step-n{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--pink));color:#fff;
  font-weight:900;font-size:1.2rem;margin-bottom:12px}
.steps p{color:var(--ink-2);margin-top:6px}

/* ---------- FAQ ---------- */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:2px 20px;margin-bottom:12px;box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;
  display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--cyan-d)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-2);padding:0 0 18px}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--cyan),var(--pink));color:#fff;text-align:center;
  padding:66px 0}
.cta-inner h2{color:#fff}
.cta-inner p{margin:12px 0 26px;opacity:.95}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:var(--cream-2);padding:56px 0;border-bottom:1px solid var(--line)}
.page-hero .lead{color:var(--ink-2);margin-top:12px;max-width:44em}

/* ---------- Legal ---------- */
.legal h2{margin:30px 0 10px;font-size:1.35rem}
.legal p{margin-bottom:12px}
.legal code{background:var(--cream-2);padding:2px 7px;border-radius:6px;font-size:.9em}

/* ---------- Contact form ---------- */
.contact-layout{display:grid;grid-template-columns:1.6fr .9fr;gap:36px;align-items:start}
.contact-form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow)}
.field{margin-bottom:18px;display:flex;flex-direction:column}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{font-weight:700;margin-bottom:7px;font-size:.92rem}
.field input,.field textarea{font:inherit;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:12px;background:var(--bg);color:var(--fg);transition:.15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--cyan) 30%,transparent)}
.field textarea{resize:vertical}
.counter{align-self:flex-end;font-size:.78rem;color:var(--ink-2);margin-top:4px}
.form-note{font-size:.85rem;color:var(--ink-2);margin-top:14px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.contact-side{display:grid;gap:16px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:20px;box-shadow:var(--shadow)}
.side-card h3{font-size:1rem;margin-bottom:6px}
.side-card p{color:var(--ink-2);font-size:.95rem}

.alert{border-radius:var(--radius-sm);padding:16px 18px;margin-bottom:20px}
.alert-ok{background:color-mix(in srgb,var(--cyan) 18%,var(--card));border:1px solid var(--cyan)}
.alert-err{background:color-mix(in srgb,var(--pink) 16%,var(--card));border:1px solid var(--pink)}
.alert ul{margin:8px 0 0 18px}

/* ---------- Footer ---------- */
.site-footer{background:var(--cream-2);border-top:1px solid var(--line);padding:52px 0 26px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.footer-tagline{font-weight:700;margin:12px 0 6px}
.footer-copy{color:var(--ink-2);font-size:.88rem}
.footer-col h3{font-size:.95rem;margin-bottom:12px}
.footer-col a{display:block;color:var(--ink-2);padding:5px 0;font-size:.95rem}
.footer-col a:hover{color:var(--cyan-d)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);margin-top:30px;padding-top:20px;color:var(--ink-2);font-size:.88rem}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-copy .lead{margin-inline:auto}
  .hero-cta,.hero-badges{justify-content:center}
  .hero-art{order:-1}
  .contact-layout{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .nav-toggle{display:flex}
  .primary-nav{position:absolute;top:68px;left:0;right:0;background:var(--bg);
    flex-direction:column;gap:0;padding:8px 22px 18px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);display:none}
  .primary-nav.open{display:flex}
  .primary-nav a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .primary-nav .btn{margin-top:10px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px}
}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}}