/* ============================================================
   Startrona — tokens
   ============================================================ */
:root {
  --ink: #0d0a18;
  --ink-raised: #17122a;
  --ink-raised-2: #1e1836;
  --violet: #7a3ef5;
  --violet-soft: rgba(122, 62, 245, 0.35);
  --teal: #17e1b8;
  --teal-soft: rgba(23, 225, 184, 0.35);
  --paper: #f3f0fa;
  --mist: #9c93b8;
  --border: rgba(243, 240, 250, 0.1);
  --border-strong: rgba(243, 240, 250, 0.18);
  --gradient: linear-gradient(135deg, var(--violet), var(--teal));

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", "Courier New", monospace;

  --container: 1180px;
  --pad-inline: clamp(1.25rem, 4vw, 2.5rem);
  --section-pad: clamp(4rem, 3rem + 4vw, 7rem);

  --card-radius: 4px 24px 24px 24px;
  color-scheme: dark;
}

/* ============================================================
   Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 1rem;
  background: var(--teal);
  color: var(--ink);
  font-weight: 700;
  padding: 0.7rem 1.1rem;
  border-radius: 8px;
  z-index: 200;
}
.skip-link:focus { left: 1rem; }

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

section { padding-block: var(--section-pad); position: relative; scroll-margin-top: 84px; }

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
}
.section-head h2 {
  font-size: clamp(1.9rem, 1.5rem + 2vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-wrap: balance;
}
.section-head p {
  color: var(--mist);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.1rem);
  max-width: 60ch;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.7rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  white-space: nowrap;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.25s ease; }

.btn-primary {
  background: var(--gradient);
  color: var(--ink);
  box-shadow: 0 12px 30px -8px var(--violet-soft);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -8px var(--violet-soft); }
.btn-primary:hover svg { transform: translateX(3px); }

.btn-ghost {
  color: var(--paper);
  border: 1px solid var(--border-strong);
  background: rgba(243, 240, 250, 0.03);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--mist);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.text-link svg { width: 17px; height: 17px; color: var(--teal); }
.text-link:hover { color: var(--paper); border-color: var(--border-strong); }

/* ============================================================
   Header / nav
   ============================================================ */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: 1.25rem;
  transition: background 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(13, 10, 24, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-color: var(--border);
  padding-block: 0.85rem;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.nav-logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-logo::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--gradient);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2.25rem);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.nav-links a {
  position: relative;
  padding-block: 0.3rem;
  color: var(--mist);
  transition: color 0.2s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--teal);
  transition: right 0.25s ease;
}
.nav-links a:hover { color: var(--paper); }
.nav-links a:hover::after { right: 0; }

.nav-right { display: flex; align-items: center; gap: 1.25rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding-top: clamp(7.5rem, 6rem + 4vw, 10rem);
  padding-bottom: clamp(4rem, 3rem + 4vw, 6rem);
  overflow: clip;
}
.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
  gap: clamp(2.5rem, 4vw, 4rem);
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(243, 240, 250, 0.03);
  width: fit-content;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: clamp(2.3rem, 1.6rem + 3.4vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
  text-wrap: balance;
}
.hero-title .accent {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: var(--teal);
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  margin-top: 1.5rem;
  max-width: 52ch;
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
  color: var(--mist);
}
.hero-actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

.hero-eyebrow, .hero-title, .hero-sub, .hero-actions, .hero-visual {
  animation: rise 0.8s cubic-bezier(.16,.84,.44,1) both;
}
.hero-title { animation-delay: 0.1s; }
.hero-sub { animation-delay: 0.22s; }
.hero-actions { animation-delay: 0.34s; }
.hero-visual { animation-delay: 0.42s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero visual: abstract browser mockup */
.hero-visual { position: relative; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  z-index: 0;
}
.blob-1 { width: 300px; height: 300px; background: var(--violet); top: -70px; left: -50px; animation: floatA 13s ease-in-out infinite alternate; }
.blob-2 { width: 230px; height: 230px; background: var(--teal); bottom: -60px; right: -30px; animation: floatB 15s ease-in-out infinite alternate; }
@keyframes floatA { from { transform: translate(0,0) scale(1); } to { transform: translate(24px, 18px) scale(1.08); } }
@keyframes floatB { from { transform: translate(0,0) scale(1); } to { transform: translate(-18px, -22px) scale(1.05); } }

.browser-mock {
  position: relative;
  z-index: 1;
  background: var(--ink-raised);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: 0 40px 90px -25px rgba(0,0,0,0.6);
  transform: rotate(2.5deg);
  transition: transform 0.5s ease;
  will-change: transform;
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.85rem 1.1rem;
  background: rgba(243, 240, 250, 0.03);
  border-bottom: 1px solid var(--border);
}
.browser-bar span { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.browser-bar span:nth-child(1) { background: var(--violet); }
.browser-bar span:nth-child(2) { background: var(--teal); }
.browser-body { padding: 1.4rem; display: flex; flex-direction: column; gap: 0.9rem; }
.mock-nav { height: 12px; width: 38%; border-radius: 6px; background: linear-gradient(90deg, var(--violet), var(--teal)); opacity: 0.65; }
.mock-hero { height: 76px; border-radius: 12px; background: linear-gradient(135deg, rgba(122,62,245,0.35), rgba(23,225,184,0.22)); }
.mock-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
.mock-grid div { height: 52px; border-radius: 10px; background: rgba(243, 240, 250, 0.06); }

/* ============================================================
   Services (Oferta)
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: linear-gradient(180deg, rgba(243,240,250,0.035), rgba(243,240,250,0.01));
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 24px 50px -20px rgba(122, 62, 245, 0.4);
}
.icon-tile {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: 4px 14px 14px 14px;
  color: var(--teal);
}
.service-card:nth-child(even) .icon-tile { color: var(--violet); }
.icon-tile svg { width: 24px; height: 24px; }
.service-card h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
.service-card p { color: var(--mist); font-size: 0.98rem; }

/* ============================================================
   Portfolio
   ============================================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.portfolio-card {
  display: block;
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  background: var(--ink-raised);
  cursor: pointer;
  transition: transform 0.35s ease, border-color 0.35s ease;
}
.portfolio-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.portfolio-thumb {
  position: relative;
  height: 140px;
  overflow: hidden;
  background: linear-gradient(110deg, #1c1930 8%, #241f3d 18%, #1c1930 33%);
  background-size: 200% 100%;
  animation: shimmer 2.2s linear infinite;
}
.portfolio-thumb-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.portfolio-thumb iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 400%;
  height: 400%;
  border: 0;
  transform: scale(0.25);
  transform-origin: 0 0;
  background: var(--paper);
}
@keyframes shimmer { to { background-position-x: -200%; } }
.badge-soon {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(23, 225, 184, 0.12);
  border: 1px solid rgba(23, 225, 184, 0.4);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}
.portfolio-body { padding: 1.25rem 1.4rem 1.5rem; display: flex; flex-direction: column; gap: 0.4rem; }
.portfolio-body .mono-label { color: var(--mist); }
.portfolio-body h3 { font-size: 1.05rem; font-weight: 700; }
.portfolio-body p { color: var(--mist); font-size: 0.92rem; }
.portfolio-visit {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--teal);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.portfolio-visit svg { width: 15px; height: 15px; }
.portfolio-card:hover .portfolio-visit,
.portfolio-card:focus-visible .portfolio-visit { opacity: 1; transform: translateY(0); }

/* ============================================================
   About (O Startronie)
   ============================================================ */
.about .container {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2.5rem, 4vw, 5rem);
  align-items: start;
}
.about-text p {
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
  color: var(--mist);
  max-width: 58ch;
}
.about-text h2 { margin-bottom: 1.25rem; }
.feature-list { display: flex; flex-direction: column; gap: 0.9rem; }
.feature-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 4px 16px 16px 16px;
  background: rgba(243, 240, 250, 0.02);
}
.feature-item svg { width: 20px; height: 20px; color: var(--teal); flex-shrink: 0; }
.feature-item span { font-weight: 600; font-size: 0.98rem; }

/* ============================================================
   Contact
   ============================================================ */
.contact .container {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2.5rem, 4vw, 5rem);
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-item .icon-tile { width: 44px; height: 44px; flex-shrink: 0; }
.contact-item .icon-tile svg { width: 20px; height: 20px; }
.contact-item-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mist); }
.contact-item-value { font-size: 1.1rem; font-weight: 700; margin-top: 0.15rem; }
.contact-item a.contact-item-value:hover { color: var(--teal); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--ink-raised);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: clamp(1.5rem, 2vw, 2.25rem);
}
.form-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(243, 240, 250, 0.04);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  color: var(--paper);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal);
  background: rgba(243, 240, 250, 0.06);
  outline: none;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select {
  appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%239c93b8" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 9l6 6 6-6"/></svg>');
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-group select option { background: var(--ink-raised); color: var(--paper); }

.form-note {
  font-size: 0.9rem;
  color: var(--teal);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  display: none;
}
.form-note.visible { display: block; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: clamp(3rem, 2.5rem + 2vw, 4.5rem) 2rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}
.footer-brand .nav-logo { margin-bottom: 0.75rem; }
.footer-brand p { color: var(--mist); font-size: 0.95rem; max-width: 32ch; }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-col a { color: var(--paper); transition: color 0.2s ease; }
.footer-col a:hover { color: var(--teal); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--mist);
}

/* ============================================================
   Legal / prose pages (Polityka prywatności itp.)
   ============================================================ */
.legal { padding-top: clamp(7rem, 6rem + 4vw, 9rem); padding-bottom: 5rem; }
.legal .container { max-width: 760px; }
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}
.legal-back:hover { color: var(--teal); }
.legal-back svg { width: 16px; height: 16px; }
.legal h1 {
  font-size: clamp(2rem, 1.6rem + 2vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.legal .legal-updated {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mist);
  margin-bottom: 3rem;
}
.legal h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 2.75rem;
  margin-bottom: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}
.legal p, .legal li { color: var(--mist); font-size: 1rem; line-height: 1.75; }
.legal p { margin-bottom: 1.1rem; }
.legal ul { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.1rem; padding-left: 1.3rem; }
.legal li { list-style: disc; }
.legal strong { color: var(--paper); font-weight: 600; }
.legal a:not(.legal-back) { color: var(--teal); text-decoration: underline; text-underline-offset: 2px; }
.legal-note {
  margin-top: 3rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border-strong);
  border-radius: 4px 16px 16px 16px;
  background: rgba(23, 225, 184, 0.05);
  font-size: 0.92rem;
}
.legal-note strong { color: var(--teal); }

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .nav-links { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: flex-start; gap: 1.25rem; background: rgba(13,10,24,0.97); backdrop-filter: blur(14px); padding: 1.75rem var(--pad-inline); border-bottom: 1px solid var(--border); display: none; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }

  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 420px; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }

  .about .container,
  .contact .container { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .services-grid,
  .portfolio-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}

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