/* ============================================
   JanosTech.net — modern dark theme
   ============================================ */

:root {
  --bg: #0a0e1a;
  --bg-elev: #0e1424;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #e8ecf3;
  --text-muted: #9aa3b2;
  --text-dim: #6c7584;

  --accent: #5cc8ff;
  --accent-2: #fec016;
  --accent-glow: rgba(92, 200, 255, 0.25);

  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 22px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --nav-h: 72px;
  --content-max: 1120px;
}

/* ---------- reset ---------- */
*, *::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-sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "cv11", "ss01";
  overflow-x: hidden;
  background-image:
    radial-gradient(1200px 600px at 85% -10%, rgba(92, 200, 255, 0.08), transparent 60%),
    radial-gradient(900px 500px at 10% 15%, rgba(254, 192, 22, 0.05), transparent 60%);
  background-attachment: fixed;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color .15s ease; }
a:hover { color: #9fdcff; }
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 .6em; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; color: var(--text-muted); }
ul { padding-left: 1.1em; margin: 0 0 1em; }
ul li { color: var(--text-muted); margin-bottom: .4em; }
::selection { background: var(--accent-glow); color: #fff; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ---------- layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 96px 0; position: relative; }
.section-sm { padding: 56px 0; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface);
  margin-bottom: 20px;
}
.text-center { text-align: center; }
.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 68ch;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex; align-items: center;
  z-index: 50;
  background: rgba(10, 14, 26, 0.65);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav .container {
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  color: var(--text);
  font-size: .95rem;
}
.brand:hover { color: var(--accent); }
.brand .brand-face {
  color: var(--accent-2);
  font-weight: 700;
  letter-spacing: .02em;
}
.nav-links {
  display: flex; align-items: center; gap: 6px;
  list-style: none; padding: 0; margin: 0;
}
.nav-links a {
  color: var(--text-muted);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  position: relative;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.nav-cta {
  background: var(--accent);
  color: #06121d !important;
  font-weight: 600;
  padding: 10px 16px !important;
  border-radius: 999px;
}
.nav-cta:hover { background: #9fdcff; }
.nav-toggle {
  display: none;
  background: transparent; border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 10px; color: var(--text);
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    gap: 2px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .96rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, box-shadow .2s ease, border-color .15s ease;
}
.btn-primary {
  background: var(--accent);
  color: #06121d;
  box-shadow: 0 10px 30px -10px var(--accent-glow);
}
.btn-primary:hover {
  background: #9fdcff; color: #06121d;
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  background: var(--surface-hover);
  border-color: var(--text-muted);
  color: var(--text);
}
.btn .arrow { transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- hero ---------- */
.hero {
  padding: calc(var(--nav-h) + 70px) 0 90px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(600px 300px at 20% 20%, rgba(92, 200, 255, 0.14), transparent 60%),
    radial-gradient(500px 300px at 80% 10%, rgba(254, 192, 22, 0.08), transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.hero .container { position: relative; z-index: 1; text-align: center; }
.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.6rem);
  margin-bottom: .25em;
}
.hero h1 .accent {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lead { font-size: 1.2rem; margin-top: .5em; }
.hero-chips {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 10px;
  margin: 30px 0 36px;
}
.chip {
  font-family: var(--font-mono);
  font-size: .78rem;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.hero-cta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 14px;
  margin-top: 10px;
}

/* hero thumbnails (decorative strip) */
.hero-thumbs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px auto 28px;
}
.hero-thumbs img {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid var(--border);
}
@media (max-width: 540px) {
  .hero-thumbs img { width: 100px; height: 100px; border-radius: 12px; }
  .hero-thumbs { gap: 8px; margin: 24px auto 20px; }
}

/* ---------- section headings ---------- */
.section-head { text-align: center; margin-bottom: 54px; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { margin: 0 auto; max-width: 60ch; }

/* ---------- about preview ---------- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.pillar:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--surface-hover);
}
.pillar h3 { color: var(--text); font-size: 1.1rem; margin-bottom: 10px; }
.pillar p { margin: 0; font-size: .95rem; }
.pillar .ico {
  display: inline-flex; width: 42px; height: 42px;
  align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(92, 200, 255, 0.1);
  color: var(--accent);
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
}

/* ---------- portfolio grid ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .3s ease;
  text-align: left;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-hover);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.5);
}
.card .thumb {
  aspect-ratio: 16 / 10;
  background: #0b1120;
  overflow: hidden;
  position: relative;
}
.card .thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.card:hover .thumb img { transform: scale(1.04); }
.card .thumb::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10, 14, 26, 0.6));
}
.card .body { padding: 22px 22px 24px; }
.card .tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 12px;
}
.card .tag {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(92, 200, 255, 0.08);
  border: 1px solid rgba(92, 200, 255, 0.2);
  padding: 3px 9px;
  border-radius: 999px;
}
.card .tag.alt {
  color: var(--accent-2);
  background: rgba(254, 192, 22, 0.08);
  border-color: rgba(254, 192, 22, 0.25);
}
.card h3 { color: var(--text); font-size: 1.2rem; margin-bottom: 8px; }
.card p { margin: 0; font-size: .95rem; }

/* ---------- about page ---------- */
.about-hero {
  padding: calc(var(--nav-h) + 60px) 0 40px;
}
.about-hero .container {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-hero .portrait {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.7);
  aspect-ratio: 4 / 5;
}
.about-hero .portrait img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 860px) {
  .about-hero .container { grid-template-columns: 1fr; text-align: center; }
  .about-hero .portrait { max-width: 360px; margin: 0 auto; }
}

.prose {
  max-width: 72ch;
  margin: 0 auto;
}
.prose p, .prose li { color: var(--text-muted); font-size: 1.02rem; }
.prose h2 { margin-top: 2em; color: var(--text); }
.prose h3 { color: var(--text); margin-top: 1.6em; }
.prose strong { color: var(--text); }
.prose ul li { margin-bottom: .55em; }

/* ---------- skills ---------- */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.skill {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: .95rem;
  line-height: 1.4;
}
.skill .dot {
  flex: 0 0 auto;
  width: 8px; height: 8px; margin-top: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ---------- contact ---------- */
.contact-card {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 56px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0, rgba(92, 200, 255, 0.15), transparent 60%);
  pointer-events: none;
}
.contact-card > * { position: relative; }
.contact-card .email {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.6vw, 1.8rem);
  color: var(--text);
  margin: 10px 0 24px;
  padding: 10px 18px;
  border: 1px dashed var(--border-strong);
  border-radius: 10px;
  background: rgba(10, 14, 26, 0.4);
}
.contact-card .email:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- footer ---------- */
.footer {
  padding: 40px 0 48px;
  border-top: 1px solid var(--border);
  margin-top: 60px;
  color: var(--text-dim);
  font-size: .9rem;
  text-align: center;
}
.footer .brand { justify-content: center; margin-bottom: 10px; color: var(--text-muted); }

/* ---------- utility ---------- */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
  margin: 40px 0;
}
.fade-in { opacity: 0; transform: translateY(14px); animation: fadeIn .6s ease forwards; }
.fade-in.d1 { animation-delay: .08s; }
.fade-in.d2 { animation-delay: .16s; }
.fade-in.d3 { animation-delay: .24s; }
@keyframes fadeIn { to { opacity: 1; transform: none; } }