/* ============================================================
   Sylveon Company — mobile-first, dark, nowoczesny
   ============================================================ */

:root {
  --bg: #07090f;
  --surface: #0d1220;
  --surface-2: #131a2c;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e8ecf5;
  --text-dim: #8a93a8;
  --accent: #4f8cff;
  --accent-2: #7c5cff;
  --accent-glow: rgba(79, 140, 255, 0.35);
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-elev: 0 20px 60px -20px rgba(79, 140, 255, 0.25);
  --font-display: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --container: 1180px;
  --gutter: 20px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: var(--accent);
  color: #fff;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus {
  left: 0;
}

.sr-only {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  white-space: nowrap;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ============= Typography ============= */

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0;
  color: var(--text);
}

h2 {
  font-size: clamp(28px, 5vw, 44px);
}
h3 {
  font-size: clamp(20px, 3vw, 24px);
  letter-spacing: -0.01em;
}
h4 {
  font-size: 18px;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
  color: var(--text-dim);
}

strong {
  color: var(--text);
  font-weight: 600;
}

.grad {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============= Topbar ============= */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: rgba(7, 9, 15, 0.65);
  border-bottom: 1px solid var(--border);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand__logo {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  flex-shrink: 0;
}
.brand__a {
  color: var(--text);
}
.brand__b {
  color: var(--accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 10px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav a:hover {
  color: var(--text);
  background: var(--surface);
}
.nav__cta {
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.nav__cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

@media (max-width: 719px) {
  .nav a:not(.nav__cta) {
    display: none;
  }
}

/* ============= Hero ============= */

.hero {
  position: relative;
  padding-block: clamp(72px, 14vw, 140px) clamp(56px, 10vw, 96px);
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  top: -30%;
  left: 50%;
  width: 900px;
  height: 900px;
  max-width: 130vw;
  transform: translateX(-50%);
  background: radial-gradient(
    closest-side,
    var(--accent-glow) 0%,
    rgba(124, 92, 255, 0.15) 35%,
    transparent 70%
  );
  filter: blur(20px);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at top, #000 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at top, #000 30%, transparent 70%);
}

.hero__inner {
  text-align: center;
  max-width: 880px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 14px;
  border: 1px solid var(--accent-glow);
  border-radius: 999px;
  background: rgba(79, 140, 255, 0.08);
  margin-bottom: 28px;
}

.hero__title {
  font-size: clamp(34px, 8vw, 72px);
  font-weight: 700;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.hero__lead {
  font-size: clamp(15px, 2vw, 18px);
  max-width: 680px;
  margin: 0 auto 36px;
  color: var(--text-dim);
}

.hero__cta {
  display: flex;
  justify-content: center;
}

/* ============= Buttons ============= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 24px;
  min-height: 48px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: var(--shadow-elev);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 70px -18px rgba(79, 140, 255, 0.55);
}

.btn--ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border-strong);
}
.btn--ghost:hover {
  color: var(--text);
  background: var(--surface);
}

.btn:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ============= Proof strip ============= */

.proof {
  padding-bottom: clamp(40px, 8vw, 80px);
}
.proof__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    var(--surface);
}
.proof__card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--border);
  position: relative;
}
.proof__num {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}
.proof__card .proof__value {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.1;
}
.proof__card p {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

@media (min-width: 720px) {
  .proof__grid {
    grid-template-columns: repeat(3, 1fr);
    padding: 22px;
  }
}

/* ============= Sections ============= */

.section {
  padding-block: clamp(64px, 12vw, 128px);
}

.section--alt {
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(124, 92, 255, 0.08), transparent 60%),
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.015));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__head {
  max-width: 760px;
  margin-bottom: clamp(36px, 6vw, 64px);
}
.section__head h2 {
  margin-bottom: 16px;
}
.section__head p {
  font-size: clamp(15px, 1.8vw, 17px);
}

/* ============= Services ============= */

.services {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

.service {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.service:hover {
  transform: translateY(-3px);
  border-color: var(--accent-glow);
  background: linear-gradient(180deg, rgba(79, 140, 255, 0.04), transparent), var(--surface);
}
.service__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(79, 140, 255, 0.12);
  color: var(--accent);
  font-size: 20px;
  margin-bottom: 18px;
}
.service h3 {
  margin-bottom: 12px;
}
.service p {
  margin-bottom: 20px;
  font-size: 15px;
}

.chips {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chips li {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 6px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
}

@media (min-width: 880px) {
  .services {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============= DNA ============= */

.dna__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}
.dna__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
  overflow: hidden;
}
.dna__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  opacity: 0.7;
}
.dna__card h3 {
  margin-bottom: 12px;
  color: var(--text);
  font-size: clamp(18px, 2.4vw, 22px);
}
.dna__card p {
  font-size: 15px;
}

@media (min-width: 880px) {
  .dna__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============= Product link (Dart Profile) ============= */
/* Paleta jak SYLVEON na dart.sylveoncompany.pl */

.section--dart {
  padding-block: clamp(28px, 5vw, 48px);
}

.product-link {
  --sylveon-from: #ff7eb6;
  --sylveon-to: #c084fc;
  --dart-accent-from: #7dd3fc;
  --dart-accent-to: #a78bfa;

  max-width: 720px;
  margin-inline: auto;
  text-align: center;
  padding: clamp(28px, 5vw, 44px) clamp(20px, 4vw, 40px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 126, 182, 0.45);
  background:
    radial-gradient(90% 90% at 50% -10%, rgba(255, 126, 182, 0.32), transparent 55%),
    radial-gradient(80% 70% at 100% 110%, rgba(192, 132, 252, 0.28), transparent 50%),
    linear-gradient(180deg, rgba(255, 126, 182, 0.08), transparent 40%),
    var(--surface);
  box-shadow:
    0 0 0 1px rgba(255, 126, 182, 0.08) inset,
    0 28px 70px -24px rgba(192, 132, 252, 0.55);
}
.product-link .eyebrow {
  margin-bottom: 18px;
  color: #ff9ecd;
  border-color: rgba(255, 126, 182, 0.45);
  background: rgba(255, 126, 182, 0.12);
}
.product-link h2 {
  margin-bottom: 14px;
  font-size: clamp(24px, 4vw, 36px);
}
.product-link__brand {
  background: linear-gradient(90deg, var(--sylveon-from), var(--sylveon-to));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.product-link__accent {
  background: linear-gradient(90deg, var(--dart-accent-from), var(--dart-accent-to));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.product-link p {
  font-size: clamp(15px, 1.8vw, 17px);
  margin: 0 auto 24px;
  max-width: 540px;
}

.btn--dart {
  background: linear-gradient(135deg, #ff7eb6, #c084fc);
  color: #fff;
  box-shadow: 0 18px 40px -14px rgba(255, 126, 182, 0.55);
}
.btn--dart:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 52px -12px rgba(192, 132, 252, 0.65);
}

/* ============= CTA card ============= */

.cta {
  position: relative;
  padding: clamp(36px, 6vw, 64px) clamp(24px, 5vw, 56px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(79, 140, 255, 0.18), transparent 55%),
    radial-gradient(100% 100% at 100% 100%, rgba(124, 92, 255, 0.18), transparent 55%),
    var(--surface);
  border: 1px solid var(--border-strong);
  text-align: center;
}
.cta h2 {
  margin-bottom: 18px;
}
.cta p {
  font-size: clamp(15px, 1.8vw, 17px);
  max-width: 680px;
  margin: 0 auto 28px;
}
.cta address {
  font-style: normal;
  display: flex;
  justify-content: center;
}

/* ============= Footer ============= */

.footer {
  border-top: 1px solid var(--border);
  padding-block: 28px;
  padding-bottom: calc(28px + env(safe-area-inset-bottom));
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 16px;
}
.footer a:hover {
  color: var(--accent);
}

@media (min-width: 720px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ============= Sticky mobile CTA ============= */

.sticky-cta {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: 40;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 52px;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 14px;
  box-shadow: 0 18px 40px -12px rgba(79, 140, 255, 0.55);
  transform: translateY(140%);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.25s ease;
  opacity: 0;
}
@media (max-width: 959px) {
  .sticky-cta {
    display: inline-flex;
  }
  .sticky-cta.is-visible {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ============= Reveal animations ============= */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}
.reveal.in-view {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ============= Legal / 404 ============= */

.legal {
  padding-block: clamp(48px, 8vw, 88px) clamp(64px, 10vw, 120px);
}
.legal__inner {
  max-width: 760px;
}
.legal__head {
  margin-bottom: clamp(32px, 5vw, 48px);
}
.legal__head h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 48px);
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}
.legal__meta {
  font-size: 15px;
  color: var(--text-dim);
}
.legal__content section {
  margin-bottom: 36px;
}
.legal__content h2 {
  font-size: clamp(20px, 3vw, 26px);
  margin-bottom: 14px;
}
.legal__content h3 {
  font-size: 17px;
  margin: 20px 0 10px;
}
.legal__content p,
.legal__content li {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
}
.legal__content p {
  margin: 0 0 12px;
}
.legal__content ul {
  margin: 0 0 12px;
  padding-left: 1.2em;
}
.legal__content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.legal__content a:hover {
  color: var(--text);
}
.legal__content code {
  font-size: 0.92em;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 6px;
}

.error-page {
  min-height: calc(100vh - 160px);
  display: grid;
  place-items: center;
  padding-block: 72px;
  text-align: center;
}
.error-page__inner {
  max-width: 640px;
}
.error-page .hero__title {
  margin-bottom: 16px;
}
.error-page .hero__lead {
  margin-bottom: 28px;
}

/* ============= Cookie banner ============= */

.cookie-banner {
  position: fixed;
  left: max(12px, env(safe-area-inset-left));
  right: auto;
  bottom: max(12px, env(safe-area-inset-bottom));
  z-index: 60;
  width: min(calc(100% - 24px), 360px);
  max-width: 360px;
  padding: 10px 12px;
  background: rgba(7, 9, 15, 0.94);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 12px 36px -18px rgba(0, 0, 0, 0.55);
}
.cookie-banner[hidden] {
  display: none !important;
}
.cookie-banner__inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
}
.cookie-banner__inner p {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-dim);
}
.cookie-banner__inner a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cookie-banner__actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
  align-items: center;
}
.cookie-banner__reject {
  appearance: none;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-size: 11px;
  font-weight: 500;
  padding: 5px 8px;
  min-height: 28px;
  cursor: pointer;
  border-radius: 8px;
  flex: 1;
}
.cookie-banner__reject:hover {
  color: var(--text);
  background: var(--surface);
}
.cookie-banner__accept {
  appearance: none;
  border: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  padding: 5px 10px;
  min-height: 28px;
  cursor: pointer;
  border-radius: 8px;
  flex: 1;
}
.cookie-banner__accept:hover {
  filter: brightness(1.06);
}
body.cookie-open .sticky-cta {
  display: none !important;
}