/* ===========================
   PRESTAGO – GŁÓWNE STYLE
   AI-SEO 2026 | Lekkie, responsywne
   =========================== */

/* --- RESET & ZMIENNE --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-primary:    #7C3AED;   /* fiolet – prestige */
  --clr-primary-d:  #5B21B6;
  --clr-accent:     #F59E0B;   /* złoty akcent */
  --clr-bg:         #FFFFFF;
  --clr-bg-gray:    #F8F7FF;
  --clr-text:       #1E1B2E;
  --clr-text-muted: #6B7280;
  --clr-border:     #E5E7EB;
  --clr-success:    #10B981;

  --font-base: 'Inter', system-ui, sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 40px rgba(124,58,237,.15);

  --transition: .2s ease;
  --max-w: 1160px;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-base);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- UTILITY --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section--gray { background: var(--clr-bg-gray); }
.section-header { text-align: center; margin-bottom: 52px; }
.section-header h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 800; margin-bottom: 12px; }
.section-header p { color: var(--clr-text-muted); font-size: 1.1rem; }
.section-footer { text-align: center; margin-top: 40px; }
.highlight { color: var(--clr-primary); position: relative; }

/* --- BUTTONS --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 24px; border-radius: 50px; font-weight: 600; font-size: .95rem;
  cursor: pointer; transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { background: var(--clr-primary-d); box-shadow: var(--shadow-lg); }
.btn-outline { border-color: var(--clr-primary); color: var(--clr-primary); background: transparent; }
.btn-outline:hover { background: var(--clr-primary); color: #fff; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

/* --- HEADER --- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
}
.nav-wrapper { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.3rem; color: var(--clr-text); }
.logo-icon { font-size: 1.5rem; }
.logo-text { color: var(--clr-primary); }
.main-nav ul { display: flex; align-items: center; gap: 8px; }
.main-nav a { padding: 6px 14px; border-radius: 50px; font-weight: 500; font-size: .95rem; transition: background var(--transition), color var(--transition); }
.main-nav a:hover { background: var(--clr-bg-gray); color: var(--clr-primary); }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--clr-text); border-radius: 2px; transition: var(--transition); }

/* --- HERO --- */
.hero {
  position: relative; overflow: hidden;
  padding: 100px 0 80px;
  background: linear-gradient(135deg, #faf7ff 0%, #f0ebff 100%);
}
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(124,58,237,.1); color: var(--clr-primary);
  padding: 6px 16px; border-radius: 50px; font-size: .85rem; font-weight: 600;
  margin-bottom: 24px; border: 1px solid rgba(124,58,237,.2);
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800; line-height: 1.15; margin-bottom: 20px;
  letter-spacing: -.02em;
}
.hero-sub { font-size: 1.2rem; color: var(--clr-text-muted); max-width: 540px; margin: 0 auto 36px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; gap: 40px; justify-content: center; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat strong { font-size: 2rem; font-weight: 800; color: var(--clr-primary); }
.stat span { font-size: .85rem; color: var(--clr-text-muted); font-weight: 500; }

.hero-bg-shape {
  position: absolute; bottom: -100px; right: -100px;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,.12) 0%, transparent 70%);
  pointer-events: none;
}

/* --- SERVICES --- */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.service-card {
  background: var(--clr-bg); border: 1px solid var(--clr-border);
  border-radius: var(--radius-md); padding: 32px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--clr-primary); }
.service-card--featured { border-color: var(--clr-primary); box-shadow: var(--shadow-lg); }
.service-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--clr-primary); color: #fff; font-size: .78rem; font-weight: 700;
  padding: 4px 14px; border-radius: 50px; white-space: nowrap;
}
.service-icon { font-size: 2.5rem; margin-bottom: 16px; }
.service-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 10px; }
.service-card p { color: var(--clr-text-muted); margin-bottom: 16px; font-size: .95rem; }
.service-card ul { margin-bottom: 24px; display: flex; flex-direction: column; gap: 6px; }
.service-card li { font-size: .9rem; color: var(--clr-text-muted); padding-left: 18px; position: relative; }
.service-card li::before { content: "✓"; position: absolute; left: 0; color: var(--clr-success); font-weight: 700; }
.service-link { color: var(--clr-primary); font-weight: 600; font-size: .95rem; transition: gap var(--transition); }
.service-link:hover { text-decoration: underline; }

/* --- HOW IT WORKS --- */
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 20px; flex-wrap: wrap; }
.step { text-align: center; max-width: 260px; }
.step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--clr-primary); color: #fff;
  font-size: 1.4rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--clr-text-muted); font-size: .95rem; }
.step-arrow { font-size: 2rem; color: var(--clr-primary); opacity: .4; margin-top: 20px; }

/* --- PAYMENT --- */
.payment { background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-d) 100%); color: #fff; }
.payment-inner { display: flex; align-items: center; gap: 60px; flex-wrap: wrap; }
.payment-text { flex: 1; min-width: 280px; }
.payment-text h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 16px; }
.payment-text p { opacity: .9; margin-bottom: 24px; font-size: 1.05rem; }
.payment-benefits { display: flex; flex-direction: column; gap: 10px; }
.payment-benefits li { font-weight: 500; opacity: .95; }
.payment-visual { flex: 0 0 200px; display: flex; justify-content: center; }
.blik-mock {
  background: rgba(255,255,255,.15); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: var(--radius-md); padding: 32px 28px; text-align: center;
}
.blik-icon { font-size: 2rem; font-weight: 900; color: #fff; letter-spacing: .1em; margin-bottom: 12px; }
.blik-code { font-size: 1.6rem; font-weight: 700; letter-spacing: .3em; color: rgba(255,255,255,.7); margin-bottom: 8px; }
.blik-label { font-size: .8rem; color: rgba(255,255,255,.6); }

/* --- FAQ PREVIEW --- */
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--clr-border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-question {
  width: 100%; text-align: left; background: none; border: none;
  padding: 18px 24px; font-size: 1rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--clr-text); transition: background var(--transition);
}
.faq-question::after { content: "+"; font-size: 1.4rem; color: var(--clr-primary); flex-shrink: 0; }
.faq-question[aria-expanded="true"] { background: var(--clr-bg-gray); }
.faq-question[aria-expanded="true"]::after { content: "−"; }
.faq-answer { display: none; padding: 0 24px 18px; color: var(--clr-text-muted); font-size: .97rem; }
.faq-answer.open { display: block; }

/* --- CTA FINAL --- */
.cta-final { background: var(--clr-bg-gray); text-align: center; }
.cta-inner h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; margin-bottom: 14px; }
.cta-inner p { color: var(--clr-text-muted); margin-bottom: 28px; font-size: 1.1rem; }

/* --- FOOTER --- */
.site-footer { background: var(--clr-text); color: rgba(255,255,255,.85); padding-top: 60px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-brand .logo-text { color: var(--clr-accent); }
.footer-brand p { font-size: .9rem; opacity: .65; }
.footer-nav h3 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,.45); margin-bottom: 16px; }
.footer-nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: .93rem; opacity: .75; transition: opacity var(--transition); }
.footer-nav a:hover { opacity: 1; }
.footer-contact h3 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,.45); margin-bottom: 16px; }
.footer-note { font-size: .8rem; opacity: .5; margin-top: 10px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; }
.footer-bottom p { font-size: .85rem; opacity: .4; }
.footer-bottom a { opacity: .6; text-decoration: underline; }

/* --- RESPONSYWNOŚĆ --- */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .payment-inner { flex-direction: column; text-align: center; }
  .payment-benefits { align-items: center; }
  .payment-visual { display: none; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); margin: 0; }
}

@media (max-width: 640px) {
  .main-nav { display: none; position: fixed; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--clr-border); padding: 20px; z-index: 99; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 12px 16px; border-radius: var(--radius-sm); }
  .hamburger { display: flex; }
  .hero { padding: 60px 0 50px; }
  .hero-stats { gap: 24px; }
  .section { padding: 56px 0; }
  .footer-inner { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
}

/* --- ANIMACJE --- */
@media (prefers-reduced-motion: no-preference) {
  .service-card, .step, .faq-item { animation: fadeUp .5s ease both; }
  @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
}