/* ===========================================================
   Imre Nagy — Portfolio / CV
   Elegant · Clean · Futuristic
   =========================================================== */

:root{
  --bg: #06080d;
  --bg-alt: #090c13;
  --surface: rgba(255,255,255,0.035);
  --surface-strong: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);

  --text: #eef1f6;
  --text-dim: #a7afc0;
  --text-faint: #6b7386;

  --accent: #5eead4;      /* teal */
  --accent-2: #818cf8;    /* indigo/violet */
  --accent-soft: rgba(94,234,212,0.12);

  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1120px;

  --ease: cubic-bezier(.22,1,.36,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

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;
  overflow-x: hidden;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

p{ margin: 0; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
svg{ width: 16px; height: 16px; flex: none; }
button{ font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.skip-link{
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #06080d; padding: 10px 16px; border-radius: 8px; z-index: 999;
}
.skip-link:focus{ left: 12px; top: 12px; }

/* ---------- background decor ---------- */
.bg-grid{
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 90%);
}
.bg-glow{
  position: fixed; z-index: -1; border-radius: 50%;
  filter: blur(120px); opacity: 0.35; pointer-events: none;
}
.bg-glow--one{
  width: 560px; height: 560px; top: -220px; left: -160px;
  background: radial-gradient(circle, var(--accent), transparent 70%);
  animation: float1 22s ease-in-out infinite;
}
.bg-glow--two{
  width: 620px; height: 620px; top: 20%; right: -260px;
  background: radial-gradient(circle, var(--accent-2), transparent 70%);
  animation: float2 26s ease-in-out infinite;
}
@keyframes float1{
  0%,100%{ transform: translate(0,0); }
  50%{ transform: translate(60px, 80px); }
}
@keyframes float2{
  0%,100%{ transform: translate(0,0); }
  50%{ transform: translate(-70px, -50px); }
}

/* ---------- language toggling ----------
   Text swapping for [data-lang-en]/[data-lang-hu] pairs is handled in JS
   (script.js: applyTranslations) by writing the matching attribute value
   into textContent — no CSS display toggling needed. */

/* ---------- header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: rgba(6,8,13,0.7);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand{
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
}
.brand-mark{
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid var(--border-strong); border-radius: 8px;
  font-size: 12px; letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--accent-soft), transparent);
  color: var(--accent);
}
.brand-text{ font-size: 15px; color: var(--text); letter-spacing: 0.01em; }
.brand-text em{ font-style: normal; color: var(--accent); }
.brand-text .dot{ color: var(--text-faint); }

.site-nav{ display: flex; gap: 32px; }
.site-nav a{
  font-size: 14px; color: var(--text-dim); position: relative; padding: 4px 0;
  transition: color .25s var(--ease);
}
.site-nav a::after{
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .3s var(--ease);
}
.site-nav a:hover{ color: var(--text); }
.site-nav a:hover::after{ width: 100%; }

.header-actions{ display: flex; align-items: center; gap: 14px; }

.lang-toggle{
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 12px;
  border: 1px solid var(--border-strong); border-radius: 999px;
  padding: 7px 12px; color: var(--text-dim);
}
.lang-toggle:hover{ border-color: var(--accent); }
.lang-opt{ padding: 2px 4px; border-radius: 6px; transition: all .2s var(--ease); }
.lang-sep{ opacity: 0.4; }
html[data-lang="en"] .lang-opt[data-val="en"],
html[data-lang="hu"] .lang-opt[data-val="hu"]{
  color: var(--bg); background: var(--accent); font-weight: 600;
}

.nav-toggle{
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 34px; height: 34px;
}
.nav-toggle span{ display: block; height: 1.5px; width: 100%; background: var(--text); transition: all .3s var(--ease); }

/* ---------- hero ---------- */
.hero{
  min-height: 78vh;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  padding: 56px 0 56px;
}
.hero-inner{ text-align: center; max-width: 820px; }

.eyebrow{
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 13px; color: var(--accent);
  border: 1px solid var(--border-strong); border-radius: 999px;
  padding: 6px 14px; margin-bottom: 28px;
  background: var(--surface);
}
.pulse-dot{
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 rgba(94,234,212,0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(94,234,212,0.55); }
  70%{ box-shadow: 0 0 0 9px rgba(94,234,212,0); }
  100%{ box-shadow: 0 0 0 0 rgba(94,234,212,0); }
}

.hero-title{
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: 1;
  background: linear-gradient(120deg, #ffffff 20%, var(--accent) 60%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 18px;
}
.hero-role{
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  color: var(--text-dim); font-weight: 400;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  margin-bottom: 26px;
}
.hero-role .bracket{ color: var(--accent-2); opacity: 0.8; }

.hero-lede{
  font-size: 1.08rem; color: var(--text-dim);
  max-width: 640px; margin: 0 auto 38px;
}

.hero-actions{ display: flex; gap: 16px; justify-content: center; margin-bottom: 52px; flex-wrap: wrap; }

.btn{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-size: 14px; font-weight: 600;
  transition: all .3s var(--ease);
  border: 1px solid transparent;
}
.btn--primary{
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #06080d;
}
.btn--primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(94,234,212,0.45); }
.btn--ghost{
  border-color: var(--border-strong); color: var(--text);
  background: var(--surface);
}
.btn--ghost:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.hero-meta{
  display: flex; flex-wrap: wrap; gap: 12px 22px; justify-content: center;
  font-family: var(--font-mono); font-size: 13px; color: var(--text-dim);
}
.meta-item{ display: inline-flex; align-items: center; gap: 7px; transition: color .25s var(--ease); }
.meta-item:not(.meta-item--static):hover{ color: var(--accent); }

.scroll-cue{
  position: absolute; bottom: 5px; left: 50%; transform: translateX(-50%);
  width: 22px; height: 36px; border: 1px solid var(--border-strong); border-radius: 12px;
}
.scroll-cue span{
  display: block; width: 4px; height: 8px; border-radius: 2px; background: var(--accent);
  margin: 6px auto 0; animation: scrollcue 1.8s infinite;
}
@keyframes scrollcue{
  0%{ transform: translateY(0); opacity: 1; }
  70%{ transform: translateY(10px); opacity: 0; }
  100%{ opacity: 0; }
}

/* ---------- sections ---------- */
.section{ padding: 120px 0; position: relative; }
.section--alt{ background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015) 15%, rgba(255,255,255,0.015) 85%, transparent); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-kicker{
  font-family: var(--font-mono); font-size: 13px; color: var(--accent);
  letter-spacing: 0.06em; margin-bottom: 14px;
}
.section-title{
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  margin-bottom: 52px;
  max-width: 700px;
}

/* ---------- about ---------- */
.about-grid{ display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: start; }
.about-text{ font-size: 1.06rem; color: var(--text-dim); }

.stat-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card{
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); padding: 22px 20px;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.stat-card:hover{ border-color: var(--border-strong); transform: translateY(-3px); }
.stat-num{
  display: block; font-family: var(--font-display); font-size: 2rem; color: var(--accent);
  margin-bottom: 4px;
}
.stat-num small{ font-size: 1rem; }
.stat-label{ font-size: 12.5px; color: var(--text-faint); }

/* ---------- skills ---------- */
.skills-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-card{
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); padding: 26px 24px;
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
.skill-card:hover{ border-color: rgba(94,234,212,0.4); transform: translateY(-4px); background: var(--surface-strong); }
.skill-card h3{
  font-family: var(--font-mono); font-size: 13px; font-weight: 500; color: var(--accent-2);
  letter-spacing: 0.02em; margin-bottom: 16px; text-transform: uppercase;
}
.chip-row{ display: flex; flex-wrap: wrap; gap: 8px; }
.chip{
  font-size: 12.5px; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--border-strong); color: var(--text-dim);
  background: rgba(255,255,255,0.02);
}

/* ---------- timeline ---------- */
.timeline{ position: relative; padding-left: 34px; }
.timeline::before{
  content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 1px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2) 50%, transparent);
}
.tl-item{ position: relative; padding-bottom: 56px; }
.tl-item:last-child{ padding-bottom: 0; }
.tl-node{
  position: absolute; left: -34px; top: 4px; width: 13px; height: 13px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(94,234,212,0.08);
}
.tl-header{ display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 14px; margin-bottom: 6px; }
.tl-role{ font-family: var(--font-display); font-size: 1.25rem; }
.tl-period{ font-family: var(--font-mono); font-size: 12.5px; color: var(--accent); border: 1px solid var(--border-strong); padding: 3px 10px; border-radius: 999px; }
.tl-company{ font-size: 14px; color: var(--text-dim); margin-bottom: 18px; }

.tl-body{
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); padding: 24px 26px;
}
.tl-block + .tl-block{ margin-top: 18px; }
.tl-block h4{
  font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-faint); margin-bottom: 10px; font-weight: 500;
}
.tl-list{ display: flex; flex-direction: column; gap: 7px; }
.tl-list li{
  font-size: 14.5px; color: var(--text-dim); padding-left: 18px; position: relative;
}
.tl-list li::before{
  content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 1px; background: var(--accent-2);
}
.tl-tags{ display: flex; flex-wrap: wrap; gap: 7px; }
.tl-tags span{
  font-size: 11.5px; font-family: var(--font-mono); color: var(--text-faint);
  border: 1px solid var(--border); padding: 4px 9px; border-radius: 6px;
}

/* ---------- education / interests ---------- */
.two-col{ display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }

.edu-card, .lang-card{
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); padding: 26px; margin-bottom: 20px;
}
.edu-card h3, .lang-card h3{ font-size: 1.1rem; margin-bottom: 8px; }
.edu-role{ color: var(--accent); font-size: 14px; margin-bottom: 10px; }
.edu-meta{ font-size: 13px; color: var(--text-faint); font-family: var(--font-mono); margin-top: 4px; }

.lang-bar-row{ display: flex; align-items: center; gap: 14px; font-size: 14px; margin-top: 10px; }
.lang-bar{ flex: 1; height: 6px; border-radius: 999px; background: rgba(255,255,255,0.06); overflow: hidden; }
.lang-bar span{ display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 999px; }
.lang-level{ color: var(--text-faint); font-family: var(--font-mono); font-size: 12.5px; }
.lang-note{ margin-top: 12px; font-size: 12.5px; color: var(--text-faint); }

.interest-list{ display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.interest-list li{
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); padding: 14px 16px; font-size: 13.5px; color: var(--text-dim);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.interest-list li:hover{ border-color: rgba(129,140,248,0.4); transform: translateY(-2px); }
.interest-list li::before{
  content: "◆"; color: var(--accent-2); font-size: 8px;
}

/* ---------- contact ---------- */
.contact{ text-align: center; }
.contact .section-title{ margin-left: auto; margin-right: auto; }
.contact-lede{ color: var(--text-dim); max-width: 520px; margin: 0 auto 48px; }

.contact-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 720px; margin: 0 auto; }
.contact-card{
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); padding: 22px 18px; text-align: left;
  transition: all .3s var(--ease);
}
.contact-card:hover{ border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 14px 30px -14px rgba(94,234,212,0.35); }
.contact-card-label{ display: block; font-family: var(--font-mono); font-size: 11.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 8px; }
.contact-card-value{ display: block; font-size: 13.5px; color: var(--text); word-break: break-word; }

/* ---------- footer ---------- */
.site-footer{ border-top: 1px solid var(--border); padding: 30px 0; }
.footer-inner{ display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 12.5px; color: var(--text-faint); font-family: var(--font-mono); }

/* ---------- reveal animation ---------- */
.reveal{ opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in-view{ opacity: 1; transform: translateY(0); }

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .about-grid, .two-col{ grid-template-columns: 1fr; gap: 36px; }
  .skills-grid{ grid-template-columns: repeat(2, 1fr); }
  .contact-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px){
  .site-nav{
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 0;
    background: rgba(6,8,13,0.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 8px 28px 20px;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: all .3s var(--ease);
  }
  .site-nav.open{ transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav a{ padding: 14px 0; border-bottom: 1px solid var(--border); }
  .nav-toggle{ display: flex; }
  .nav-toggle.open span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2){ opacity: 0; }
  .nav-toggle.open span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

  .hero{ min-height: auto; align-items: flex-start; padding: 88px 0 48px; }
  .section{ padding: 84px 0; }
  .stat-grid{ grid-template-columns: 1fr 1fr; }
  .skills-grid{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .interest-list{ grid-template-columns: 1fr; }
}