/* ---------- Premenné ---------- */
:root {
  --radius: 0.75rem;
  --background: oklch(0.16 0.012 165);
  --foreground: oklch(0.95 0.01 120);
  --card: oklch(0.2 0.014 165);
  --secondary: oklch(0.24 0.016 165);
  --primary: oklch(0.86 0.17 128);
  --primary-foreground: oklch(0.18 0.03 150);
  --muted-foreground: oklch(0.68 0.02 150);
  --accent: oklch(0.78 0.12 80);
  --accent-foreground: oklch(0.18 0.03 150);
  --destructive: oklch(0.65 0.2 25);
  --border: oklch(0.3 0.016 165);
  --ring: oklch(0.86 0.17 128);

  --font-display: "Space Grotesk", sans-serif;
  --font-serif: "Instrument Serif", serif;
  --font-sans: "Manrope", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

/* ---------- Základ ---------- */
*, *::before, *::after { box-sizing: border-box; border-color: var(--border); }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.5;
  overflow-x: hidden;
}
h1, h2, h3, p { margin: 0; }
a { color: inherit; text-decoration: none; touch-action: manipulation; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--ring); outline-offset: 4px; }
[hidden] { display: none !important; }

.container { width: 100%; max-width: 72rem; margin-inline: auto; padding-inline: 1rem; }
.serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; }
.accent-text { color: var(--primary); }
.accent-2 { color: var(--accent); }

.eyebrow, .eyebrow-light { font-family: var(--font-mono); font-size: .75rem; text-transform: uppercase; }
.eyebrow { color: var(--primary); }
.eyebrow-light { opacity: .7; }

/* ---------- Tlačidlá ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  border: 1px solid transparent; border-radius: 999px;
  font: 600 .875rem/1 var(--font-sans);
  cursor: pointer; transition: background-color .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { background: color-mix(in oklab, var(--primary) 90%, transparent); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }
.btn-outline { border-color: var(--border); background: var(--background); color: var(--foreground); }
.btn-outline:hover { background: var(--secondary); }
.btn-light { background: var(--primary-foreground); color: var(--primary); }
.btn-light:hover { background: color-mix(in oklab, var(--primary-foreground) 90%, transparent); }
.btn-sm { height: 2.75rem; padding: 0 1rem; }
.btn-lg { height: 3rem; padding: 0 1.5rem; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: rotate(45deg); }

/* ---------- Hlavička ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background: color-mix(in oklab, var(--background) 70%, transparent);
  -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: .75rem; height: 4rem; }
.logo { display: flex; align-items: center; min-height: 2.75rem; font: 700 1.25rem var(--font-display); }
.nav-desktop { display: none; gap: 2rem; font-size: .875rem; color: var(--muted-foreground); }
.nav-desktop a { display: inline-flex; align-items: center; min-height: 2.75rem; transition: color .2s; }
.nav-desktop a:hover { color: var(--foreground); }
.header-actions { display: flex; align-items: center; gap: .5rem; flex-shrink: 0; }
.menu-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.75rem; height: 2.75rem; border: 0; border-radius: .5rem;
  background: transparent; color: var(--foreground); cursor: pointer;
}
.menu-toggle:hover { background: var(--secondary); }
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }
.nav-mobile { border-top: 1px solid var(--border); background: var(--background); padding: .5rem 1rem; }
.nav-mobile a { display: flex; align-items: center; min-height: 3rem; padding: 0 .75rem; border-radius: .5rem; font-size: .875rem; }
.nav-mobile a:hover { background: var(--secondary); }

/* ---------- Hero ---------- */
.hero { position: relative; }
.grid-lines {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at top, black 20%, transparent 70%);
  mask-image: radial-gradient(ellipse at top, black 20%, transparent 70%);
}
.bg-glow {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(60% 50% at 70% 20%, color-mix(in oklab, var(--primary) 18%, transparent), transparent 70%);
}
.hero-inner { position: relative; padding-top: 3rem; padding-bottom: 3rem; }
.status { display: flex; align-items: center; gap: .5rem; font: .75rem var(--font-mono); text-transform: uppercase; color: var(--muted-foreground); }
.dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--primary); }
.dot-sm { width: .375rem; height: .375rem; }
.pulse { animation: pulse 2s cubic-bezier(.4, 0, .6, 1) infinite; }
h1 { margin-top: 1.5rem; font: 600 2.25rem/1.12 var(--font-display); }
.rotating {
  display: block; font: italic 400 inherit var(--font-serif); color: var(--primary);
  transition: transform .3s, opacity .3s;
}
.rotating.fade { transform: translateY(.5rem); opacity: 0; }
.lead { margin-top: 1.5rem; max-width: 36rem; font-size: 1rem; line-height: 1.625; color: var(--muted-foreground); }
.hero-buttons { margin-top: 2rem; display: grid; gap: .75rem; }
.stats {
  margin-top: 2.5rem; display: grid; grid-template-columns: 1fr; gap: 1px;
  overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--border);
}
.stats > div { display: grid; grid-template-columns: 3rem minmax(0, 1fr); align-items: center; gap: 1rem; background: var(--background); padding: 1rem; }
.stat-n { font: 600 2.25rem var(--font-display); color: var(--primary); }
.stat-l { font-size: .875rem; color: var(--muted-foreground); }

/* ---------- Pás zručností ---------- */
.marquee-wrap { overflow: hidden; border-block: 1px solid var(--border); background: var(--card); padding-block: 1.25rem; }
.skills-strip {
  display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; padding-inline: 1rem;
  font: 500 1rem var(--font-display); color: var(--muted-foreground);
}
.skills-strip > span { display: flex; align-items: center; gap: .75rem; }
.skills-strip > span:nth-child(n + 7) { display: none; }
.skills-strip .star { color: var(--primary); }

/* ---------- Sekcie ---------- */
.section { padding-block: 4rem; }
h2 { font: 600 2.25rem var(--font-display); }
.about { display: grid; gap: 1.5rem; }
.about-text > * + * { margin-top: 1.5rem; }
.about-big { font: 400 1.5rem/1.375 var(--font-display); }
.about-small { max-width: 42rem; font-size: 1.125rem; color: var(--muted-foreground); }

.section-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 1rem; margin-bottom: 2rem; }
.section-head h2 { margin-top: 1rem; }
.count { font: .875rem var(--font-mono); color: var(--muted-foreground); }

.projects { border-top: 1px solid var(--border); }
.project { display: grid; gap: 1rem; padding-block: 2rem; border-bottom: 1px solid var(--border); transition: background-color .2s; }
.project:hover { background: var(--card); }
.project-n { font: .875rem var(--font-mono); color: var(--muted-foreground); }
.project h3 { overflow-wrap: anywhere; font: 600 1.5rem var(--font-display); transition: color .2s; }
.project:hover h3 { color: var(--primary); }
.project p { color: var(--muted-foreground); }
.project .stack { margin-top: .5rem; font: .75rem var(--font-mono); color: color-mix(in oklab, var(--muted-foreground) 70%, transparent); }
.tags { display: flex; align-items: center; gap: .75rem; }
.tag { padding: .25rem .75rem; border: 1px solid var(--border); border-radius: 999px; font: .75rem var(--font-mono); text-transform: uppercase; }
.tag-system { background: var(--accent); color: var(--accent-foreground); border-color: transparent; }
.live { display: flex; align-items: center; gap: .375rem; font: .75rem var(--font-mono); color: var(--primary); }

.steps-title { margin: 1rem 0 3rem; }
.steps { display: grid; gap: 1rem; }
.step { padding: 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); transition: border-color .2s; }
.step:hover { border-color: var(--primary); }
.step-n { font: .875rem var(--font-mono); color: var(--primary); }
.step h3 { margin-top: 1.25rem; font: 600 1.5rem var(--font-display); }
.step p { margin-top: .5rem; font-size: .875rem; color: var(--muted-foreground); }

/* ---------- Kontakt ---------- */
.contact-section { padding: 0 1rem 3rem; }
.contact-box { padding: 1.25rem; border-radius: var(--radius); background: var(--primary); color: var(--primary-foreground); }
.contact-title { margin-top: 1.5rem; max-width: 48rem; font: 600 2.25rem/1.25 var(--font-display); }
.contact-lead { margin-top: 1.5rem; max-width: 36rem; font-size: 1.125rem; opacity: .8; }
.contact-form { margin-top: 2rem; padding: 1rem; border-radius: var(--radius); background: var(--card); color: var(--foreground); }
.form-grid { display: grid; gap: 1rem; }
.form-grid label { display: block; font-size: .875rem; font-weight: 500; }
.form-grid input:not(.hp), .form-grid textarea {
  display: block; width: 100%; margin-top: .5rem; min-height: 3rem; padding: 0 1rem;
  border: 1px solid var(--border); border-radius: calc(var(--radius) - 2px);
  background: var(--background); color: var(--foreground); font: 1rem var(--font-sans);
}
.form-grid textarea { min-height: 8rem; padding: .75rem 1rem; resize: vertical; }
.form-grid input::placeholder, .form-grid textarea::placeholder { color: var(--muted-foreground); }
.form-grid input:focus-visible, .form-grid textarea:focus-visible { outline: 2px solid var(--ring); }
.form-grid .is-invalid { border-color: var(--destructive) !important; }
.field-error { margin-top: .25rem; font-size: .875rem; color: var(--destructive); }
.field-error:empty { display: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-footer { display: flex; flex-direction: column; gap: .75rem; }
.form-status { min-width: 0; font-size: .875rem; color: var(--muted-foreground); }
.form-status.error { color: var(--destructive); }
.form-success { display: flex; align-items: center; gap: .75rem; min-height: 3rem; font-weight: 500; }
.check { display: inline-flex; flex-shrink: 0; align-items: center; justify-content: center; width: 2.25rem; height: 2.25rem; border-radius: 50%; background: var(--primary); color: var(--primary-foreground); }
.or-mail { margin-top: 1.5rem; font: .875rem var(--font-mono); opacity: .8; }
.btn-mail { margin-top: 2rem; width: 100%; height: auto; min-height: 3rem; padding: .75rem; white-space: normal; font: .75rem var(--font-mono); }
.btn-mail span { min-width: 0; word-break: break-all; }
.socials { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font: .875rem var(--font-mono); }
.socials a { display: inline-flex; align-items: center; min-height: 2.75rem; padding-bottom: .25rem; border-bottom: 1px solid color-mix(in oklab, var(--primary-foreground) 30%, transparent); }
.socials a:hover { border-color: var(--primary-foreground); }

.site-footer { border-top: 1px solid var(--border); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; padding-block: 2rem; padding-inline: 1.5rem; font: .75rem var(--font-mono); color: var(--muted-foreground); }

/* ---------- Animácie ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes pulse { 50% { opacity: .5; } }
.rise { animation: rise .9s cubic-bezier(.2, .7, .2, 1) both; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
/* bez JS sa obsah vždy zobrazí */
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responzívnosť ---------- */
@media (min-width: 640px) {
  .container { padding-inline: 1.5rem; }
  .hero-inner { padding-top: 6rem; padding-bottom: 5rem; }
  h1 { margin-top: 2rem; font-size: 3.75rem; }
  .rotating { display: inline-block; min-width: 5ch; }
  .lead { margin-top: 2rem; font-size: 1.125rem; }
  .hero-buttons { display: flex; flex-wrap: wrap; margin-top: 2.5rem; }
  .stats { margin-top: 5rem; grid-template-columns: repeat(3, 1fr); }
  .stats > div { display: block; padding: 1.25rem; }
  .stat-l { margin-top: .5rem; }
  .section-head { margin-bottom: 3rem; }
  .contact-section { padding: 0 1.5rem 3rem; }
  .contact-box { padding: 2.5rem; }
  .contact-form { margin-top: 2.5rem; padding: 2rem; }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-grid .full { grid-column: 1 / -1; }
  .form-footer { flex-direction: row; align-items: center; }
  .btn-mail { width: auto; margin-top: 2.5rem; padding-inline: 1.5rem; font-size: .875rem; }
  .socials { margin-top: 2.5rem; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step h3 { margin-top: 2.5rem; }
  /* na väčších displejoch beží plynulý pás */
  .skills-strip { width: max-content; flex-wrap: nowrap; gap: 3rem; padding-inline: 0; font-size: 1.5rem; white-space: nowrap; animation: marquee 30s linear infinite; }
  .skills-strip > span { gap: 3rem; }
  .skills-strip > span:nth-child(n + 7) { display: flex; }
}
@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .menu-toggle, .nav-mobile { display: none !important; }
  .hero-inner { padding-top: 9rem; }
  h1 { font-size: 6rem; }
  .stats > div { padding: 2rem; }
  .stat-n { font-size: 3rem; }
  h2 { font-size: 3.75rem; }
  .section { padding-block: 7rem; }
  .project { padding: 2rem 1rem; grid-template-columns: 60px 1.3fr 2fr auto; align-items: center; }
  .project h3 { font-size: 1.875rem; }
  .about { grid-template-columns: 1fr 2fr; gap: 2.5rem; }
  .about-big { font-size: 2.25rem; }
  #projekty.section { padding-block: 5rem; }
  .contact-section { padding-bottom: 6rem; }
  .contact-box { padding: 5rem; }
  .contact-title { font-size: 4.5rem; line-height: 1.1; }
}
@media (min-width: 1024px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}
@media (hover: hover) {
  .skills-strip:hover { animation-play-state: paused; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .skills-strip { width: 100%; flex-wrap: wrap; gap: .75rem 1.5rem; padding-inline: 1rem; white-space: normal; font-size: 1rem; }
  .skills-strip > span { gap: .75rem; }
  .skills-strip > span:nth-child(n + 7) { display: none; }
}