/* lefteris.tech v2 */

:root {
  --bg:       #0c0c0c;
  --bg2:      #141414;
  --bg3:      #1a1a1a;
  --border:   #242424;
  --border2:  #2e2e2e;
  --text:     #e2dfd6;
  --text2:    #787068;
  --text3:    #404040;
  --accent:   #c9ff42;
  --font-ser: 'DM Serif Display', Georgia, serif;
  --font-san: 'Inter', system-ui, sans-serif;
  --font-mon: 'JetBrains Mono', 'Courier New', monospace;
  --ease:     cubic-bezier(.16,1,.3,1);
  --t:        220ms;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { -webkit-font-smoothing:antialiased; scroll-behavior:smooth; scroll-padding-top:5rem; }
body {
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-san);
  font-size:clamp(.95rem,.85rem + .3vw,1.05rem);
  line-height:1.7;
  overflow-x:hidden;
}
img,svg { display:block; max-width:100%; }
h1,h2,h3 { line-height:1.05; }
button { cursor:pointer; font:inherit; }
a { color:inherit; text-decoration:none; }
::selection { background:var(--accent); color:#000; }
::-webkit-scrollbar { width:4px; }
::-webkit-scrollbar-track { background:var(--bg); }
::-webkit-scrollbar-thumb { background:var(--border2); border-radius:4px; }
:focus-visible { outline:1px solid var(--accent); outline-offset:3px; }
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;}}

/* ── NAV ── */
.nav {
  position:fixed; top:0; inset-inline:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:.9rem clamp(1.5rem,5vw,3rem);
  background:rgba(12,12,12,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color var(--t);
}
.nav.scrolled { border-bottom-color:var(--border); }
.nav-logo {
  font-family:var(--font-mon);
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--accent);
}
.nav-links {
  display:flex; align-items:center; gap:2rem; list-style:none;
}
.nav-links a {
  font-size:.8rem;
  font-weight:500;
  color:var(--text2);
  letter-spacing:.04em;
  transition:color var(--t);
  position:relative;
}
.nav-links a::after {
  content:'';
  position:absolute; bottom:-3px; left:0; right:0; height:1px;
  background:var(--accent);
  transform:scaleX(0); transform-origin:left;
  transition:transform var(--t) var(--ease);
}
.nav-links a:hover { color:var(--text); }
.nav-links a:hover::after { transform:scaleX(1); }
.nav-links a.active { color:var(--text); }
.nav-links a.active::after { transform:scaleX(1); }
.mob-btn {
  display:none;
  background:none; border:none;
  color:var(--text2);
  padding:.25rem;
}
@media(max-width:640px){
  .nav-links {
    display:none; flex-direction:column; align-items:flex-start; gap:0;
    position:absolute; top:100%; inset-inline:0;
    background:rgba(12,12,12,.97);
    border-bottom:1px solid var(--border);
    padding:1rem clamp(1.5rem,5vw,3rem);
  }
  .nav-links.open { display:flex; }
  .nav-links a { padding-block:.75rem; font-size:.9rem; }
  .mob-btn { display:flex; }
  /* hide terminal button in mobile nav */
  .nav-term { display:none; }
}

/* ── HERO ── */
.hero {
  min-height:100dvh;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding: 5rem clamp(1rem,4vw,3rem) clamp(1.75rem,4vw,3rem);
  position:relative;
  border-bottom:1px solid var(--border);
}
.hero-name {
  font-family:var(--font-ser);
  font-style:italic;
  font-size:clamp(3rem,10vw,10rem);
  letter-spacing:-.03em;
  line-height:.9;
  color:var(--text);
  margin-bottom:1.5rem;
}
.hero-name em { font-style:normal; color:var(--accent); }
.hero-sub {
  max-width:48ch;
  font-size:clamp(.88rem,1.1vw,1.05rem);
  color:var(--text2);
  margin-bottom:1.25rem;
  line-height:1.75;
}
.hero-meta {
  display:flex; align-items:center; gap:1rem; flex-wrap:wrap;
  margin-bottom:1.5rem;
  font-family:var(--font-mon);
  font-size:.72rem;
  color:var(--text3);
  letter-spacing:.05em;
}
.hero-meta span::before { content:''; display:inline-block; width:6px; height:6px; border-radius:50%; background:var(--accent); margin-right:.5rem; vertical-align:middle; }
.hero-actions { display:flex; flex-wrap:wrap; gap:.75rem; }
.btn {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.65rem 1.4rem;
  font-size:.8rem; font-weight:600;
  font-family:var(--font-mon); letter-spacing:.06em;
  border:1px solid var(--border2);
  background:transparent; color:var(--text2);
  transition:all var(--t) var(--ease);
}
.btn:hover { border-color:var(--text2); color:var(--text); }
.btn.btn-fill {
  background:var(--accent); border-color:var(--accent); color:#000;
}
.btn.btn-fill:hover { background:#d8ff60; border-color:#d8ff60; }

@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }

/* ── TICKER ── */
.ticker-wrap {
  border-bottom:1px solid var(--border);
  overflow:hidden;
  padding-block:.75rem;
  background:var(--bg);
}
.ticker-track {
  display:flex; gap:0;
  width:max-content;
  animation:ticker 30s linear infinite;
}
.ticker-track:hover { animation-play-state:paused; }
.ticker-item {
  display:flex; align-items:center;
  font-family:var(--font-mon); font-size:.75rem;
  color:var(--text3); letter-spacing:.04em; white-space:nowrap;
  padding-inline:1.5rem;
}
.ticker-item::before {
  content:'';
  display:inline-block; width:4px; height:4px; border-radius:50%;
  background:var(--accent); margin-right:1.5rem; flex-shrink:0;
}
@keyframes ticker { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }

/* ── SECTIONS ── */
section { padding-block:clamp(2.5rem,5vw,4.5rem); border-bottom:1px solid var(--border); }
.wrap { padding-inline:clamp(1rem,4vw,3rem); }
.sec-head {
  display:flex; align-items:baseline; gap:1rem;
  margin-bottom:clamp(1.5rem,3vw,2.5rem);
  padding-bottom:1rem;
  border-bottom:1px solid var(--border);
}
.sec-num {
  font-family:var(--font-mon); font-size:.7rem;
  color:var(--accent); letter-spacing:.1em;
}
.sec-title {
  font-family:var(--font-ser); font-style:italic;
  font-size:clamp(1.4rem,3vw,2.5rem);
  color:var(--text); letter-spacing:-.02em;
}

/* ── ABOUT ── */
#about .inner {
  display:grid;
  grid-template-columns:1fr 1.5fr;
  gap:3rem;
  align-items:start;
}
@media(max-width:780px){ #about .inner { grid-template-columns:1fr; gap:1.5rem; } }
.about-aside {
  position:sticky; top:5.5rem;
}
@media(max-width:780px){ .about-aside { position:static; } }
.about-kicker {
  font-family:var(--font-mon); font-size:.72rem;
  color:var(--text2); letter-spacing:.08em; margin-bottom:1rem;
}
.about-stats {
  display:flex; flex-direction:column; gap:.75rem;
  margin-top:2rem;
}
.stat-row {
  display:flex; align-items:baseline; gap:.75rem;
  padding-block:.6rem;
  border-bottom:1px solid var(--border);
}
.stat-n {
  font-family:var(--font-ser); font-style:italic;
  font-size:2rem; color:var(--accent);
  line-height:1;
}
.stat-l {
  font-size:.78rem; color:var(--text2);
}
.about-text p {
  color:var(--text2);
  margin-bottom:1.25rem;
  max-width:58ch;
  font-size:.97rem;
  line-height:1.8;
}
.about-text p strong { color:var(--text); font-weight:600; }
.about-text p:last-child { margin-bottom:0; }
.currently {
  margin-top:1.25rem;
  padding:1rem 1.25rem;
  border:1px solid var(--border);
  border-left:2px solid var(--accent);
  background:var(--bg2);
}
.currently-label {
  font-family:var(--font-mon); font-size:.65rem;
  color:var(--accent); letter-spacing:.1em; margin-bottom:.4rem;
}
.currently-val {
  font-size:.9rem; color:var(--text2);
}
.currently-val strong { color:var(--text); }

/* ── PROJECTS ── */
.project-list { display:flex; flex-direction:column; }
.project {
  display:grid;
  grid-template-columns:2.5rem 1fr auto;
  gap:1.25rem;
  align-items:start;
  padding-block:1.25rem;
  border-bottom:1px solid var(--border);
  transition:background var(--t);
}
.project:first-child { border-top:1px solid var(--border); }
.project:hover { background:var(--bg2); margin-inline:calc(-1 * clamp(1rem,4vw,3rem)); padding-inline:clamp(1rem,4vw,3rem); }
@media(max-width:640px){
  .project { grid-template-columns:1.75rem 1fr; gap:.75rem; }
  .project-cat { display:none; }
  /* prevent hover expanding past screen edge on mobile */
  .project:hover { margin-inline:0; padding-inline:0; background:var(--bg2); }
}
.proj-num {
  font-family:var(--font-mon); font-size:.72rem;
  color:var(--text3); padding-top:.25rem;
}
.proj-name {
  font-size:1rem; font-weight:600; color:var(--text);
  margin-bottom:.4rem;
}
.proj-desc {
  font-size:.85rem; color:var(--text2);
  max-width:52ch; line-height:1.65;
  margin-bottom:.75rem;
}
.proj-tags { display:flex; flex-wrap:wrap; gap:.4rem; }
.tag {
  font-family:var(--font-mon); font-size:.65rem;
  padding:.2rem .5rem;
  border:1px solid var(--border2);
  color:var(--text3);
  transition:border-color var(--t), color var(--t);
}
.project:hover .tag { border-color:var(--border2); color:var(--text2); }
.project-cat {
  font-family:var(--font-mon); font-size:.68rem;
  color:var(--text3); letter-spacing:.04em;
  padding-top:.3rem; text-align:right; white-space:nowrap;
}

/* ── STACK ── */
#stack .stack-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));
  gap:.5rem;
}
.stack-item {
  display:flex; align-items:center; gap:.75rem;
  padding:.75rem 1rem;
  border:1px solid var(--border);
  font-size:.85rem; color:var(--text2);
  transition:border-color var(--t), color var(--t), background var(--t);
}
.stack-item:hover {
  border-color:var(--border2);
  background:var(--bg2);
  color:var(--text);
}
.stack-icon {
  width:8px; height:8px; border-radius:50%;
  background:var(--border2); flex-shrink:0;
  transition:background var(--t);
}
.stack-item:hover .stack-icon { background:var(--accent); }
.stack-name { font-weight:500; }
.stack-sub { margin-left:auto; font-family:var(--font-mon); font-size:.65rem; color:var(--text3); }

/* ── CONTACT ── */
#contact .inner {
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:3rem;
  align-items:start;
}
@media(max-width:780px){ #contact .inner { grid-template-columns:1fr; gap:2rem; } }
.contact-info h3 {
  font-family:var(--font-ser); font-style:italic;
  font-size:clamp(1.5rem,3vw,2.5rem);
  margin-bottom:1rem; color:var(--text);
}
.contact-info p { font-size:.9rem; color:var(--text2); max-width:36ch; margin-bottom:2rem; line-height:1.75; }
.contact-link {
  display:inline-flex; align-items:center; gap:.6rem;
  font-family:var(--font-mon); font-size:.8rem;
  color:var(--text2); margin-bottom:.75rem;
  transition:color var(--t);
}
.contact-link:hover { color:var(--accent); }
.contact-link svg { flex-shrink:0; }
.contact-links { display:flex; flex-direction:column; align-items:flex-start; }

.form { display:flex; flex-direction:column; gap:1rem; }
.field { display:flex; flex-direction:column; gap:.4rem; }
.field label {
  font-family:var(--font-mon); font-size:.65rem;
  letter-spacing:.1em; color:var(--text2);
}
.field input, .field textarea {
  background:var(--bg2);
  border:1px solid var(--border);
  padding:.7rem 1rem;
  color:var(--text); font:inherit; font-size:.9rem;
  resize:vertical;
  transition:border-color var(--t), box-shadow var(--t);
}
.field input:focus, .field textarea:focus {
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(201,255,66,.08);
}
.field input::placeholder, .field textarea::placeholder { color:var(--text3); }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
@media(max-width:480px){ .form-row { grid-template-columns:1fr; } }
.form-status {
  font-family:var(--font-mon); font-size:.78rem;
  padding:.65rem 1rem; display:none;
}
.form-status.ok  { display:block; color:var(--accent); border:1px solid rgba(201,255,66,.25); background:rgba(201,255,66,.05); }
.form-status.err { display:block; color:#ff8080; border:1px solid rgba(255,80,80,.25); background:rgba(255,80,80,.05); }
.hp { display:none; } /* honeypot */

/* ── FOOTER ── */
footer {
  padding:1.75rem clamp(1.5rem,5vw,3rem);
  display:flex; flex-wrap:wrap; align-items:center;
  justify-content:space-between; gap:1rem;
  border-top:1px solid var(--border);
}
.foot-l { font-family:var(--font-mon); font-size:.72rem; color:var(--text3); }
.foot-r { display:flex; gap:1.5rem; }
.foot-r a { font-family:var(--font-mon); font-size:.72rem; color:var(--text3); transition:color var(--t); }
.foot-r a:hover { color:var(--accent); }

/* ── TERMINAL ── */
#term-overlay {
  display:none; position:fixed; inset:0;
  background:rgba(0,0,0,.85);
  backdrop-filter:blur(12px);
  z-index:900;
  align-items:center; justify-content:center;
  padding:1rem;
}
@media(max-width:640px){ #term-overlay { padding:.5rem; align-items:flex-end; } }
#term-overlay.open { display:flex; }
.term-box {
  width:min(740px,100%);
  background:var(--bg);
  border:1px solid var(--border2);
  display:flex; flex-direction:column;
  max-height:85dvh;
  animation:pop .25s var(--ease);
}
@media(max-width:640px){ .term-box { max-height:92dvh; } }
@keyframes pop { from{opacity:0;transform:scale(.97)} to{opacity:1;transform:none} }
.term-bar {
  display:flex; align-items:center; gap:.6rem;
  padding:.6rem 1rem;
  border-bottom:1px solid var(--border);
  user-select:none; flex-shrink:0;
}
.term-btn { width:12px; height:12px; border-radius:50%; flex-shrink:0; }
.term-btn.r { background:#ff5f57; }
.term-btn.y { background:#febc2e; }
.term-btn.g { background:#28c840; }
.term-title {
  flex:1; text-align:center;
  font-family:var(--font-mon); font-size:.65rem; color:var(--text3);
}
.term-out {
  flex:1; overflow-y:auto;
  padding:1rem 1.25rem .5rem;
  min-height:200px; max-height:420px;
  display:flex; flex-direction:column;
}
@media(max-width:640px){ .term-out { min-height:150px; max-height:60dvh; } }
.term-out::-webkit-scrollbar { width:3px; }
.term-out::-webkit-scrollbar-thumb { background:var(--border2); }
.tl { font-family:var(--font-mon); font-size:.78rem; line-height:1.75; white-space:pre-wrap; word-break:break-word; }
.tl.blank  { height:.4rem; }
.tl.prompt { color:var(--text); }
.tl.out    { color:var(--text3); }
.tl.accent { color:var(--accent); }
.tl.ok     { color:#6ee7b7; }
.tl.warn   { color:#fbbf24; }
.tl.err    { color:#f87171; }
.tl.dim    { color:#333; }
.tl.bold   { color:var(--text); font-weight:700; }
.term-in-row {
  display:flex; align-items:center;
  padding:.5rem 1.25rem .85rem;
  border-top:1px solid var(--border);
  flex-shrink:0;
}
.term-ps {
  font-family:var(--font-mon); font-size:.78rem;
  color:var(--accent); white-space:nowrap; flex-shrink:0;
}
.term-in {
  flex:1; background:transparent; border:none; outline:none;
  color:var(--text); font-family:var(--font-mon); font-size:.78rem;
  caret-color:var(--accent); padding-left:.3rem;
}

/* ── CHAT ── */
#chat-btn {
  position:fixed; bottom:1.5rem; right:1.5rem; z-index:800;
  width:48px; height:48px;
  background:var(--bg2); border:1px solid var(--border2);
  color:var(--text2);
  display:flex; align-items:center; justify-content:center;
  border-radius:50%;
  transition:all var(--t);
  box-shadow:0 4px 20px rgba(0,0,0,.4);
}
#chat-btn:hover { color:var(--accent); border-color:rgba(201,255,66,.35); background:var(--bg3); }
#chat-btn.open-state { opacity:0; pointer-events:none; }

#chat-overlay {
  display:none; position:fixed;
  bottom:1.5rem; right:1.5rem;
  z-index:800;
  width:min(380px,calc(100vw - 2rem));
  height:min(560px,calc(100dvh - 3rem));
  background:var(--bg2);
  border:1px solid var(--border2);
  flex-direction:column;
  transform-origin:bottom right;
  animation:chatpop .3s var(--ease);
  box-shadow:0 20px 60px rgba(0,0,0,.6);
}
@media(max-width:480px){
  #chat-overlay {
    bottom:0; right:0; left:0;
    width:100%; height:70dvh;
    border-bottom:none;
    border-left:none;
    border-right:none;
    transform-origin:bottom center;
  }
  #chat-btn { bottom:1rem; right:1rem; }
}
@keyframes chatpop { from{opacity:0;transform:scale(.85)} to{opacity:1;transform:none} }
#chat-overlay.open { display:flex; }
#chat-head {
  display:flex; align-items:center; gap:.75rem;
  padding:.85rem 1rem;
  border-bottom:1px solid var(--border);
  flex-shrink:0;
}
.chat-avatar {
  width:32px; height:32px; border-radius:50%;
  background:rgba(201,255,66,.12);
  border:1px solid rgba(201,255,66,.25);
  display:flex; align-items:center; justify-content:center;
  color:var(--accent); flex-shrink:0;
}
.chat-name { font-size:.85rem; font-weight:600; color:var(--text); }
.chat-status {
  font-family:var(--font-mon); font-size:.68rem; color:var(--text2);
  display:flex; align-items:center; gap:.4rem;
}
.chat-status::before {
  content:''; width:6px; height:6px; border-radius:50%;
  background:#4ade80; flex-shrink:0;
}
#chat-close {
  margin-left:auto;
  background:none; border:none;
  color:var(--text2); width:28px; height:28px;
  display:flex; align-items:center; justify-content:center;
  border-radius:50%; transition:all var(--t);
}
#chat-close:hover { color:var(--text); background:var(--bg3); }
#chat-msgs {
  flex:1; overflow-y:auto;
  padding:.75rem 1rem;
  display:flex; flex-direction:column; gap:.5rem;
  scroll-behavior:smooth;
}
#chat-msgs::-webkit-scrollbar { width:3px; }
#chat-msgs::-webkit-scrollbar-thumb { background:var(--border2); }
.cm {
  max-width:85%; padding:.55rem .85rem;
  font-size:.84rem; line-height:1.55;
  animation:msgin .15s ease;
}
@keyframes msgin { from{opacity:0;transform:translateY(4px)} to{opacity:1;transform:none} }
.cm.bot { background:var(--bg3); color:var(--text2); align-self:flex-start; border:1px solid var(--border); }
.cm.usr { background:var(--accent); color:#000; align-self:flex-end; font-weight:500; }
.cm.sys { background:transparent; color:var(--text3); font-family:var(--font-mon); font-size:.7rem; align-self:center; border:none; text-align:center; }
.cm.typing { background:var(--bg3); border:1px solid var(--border); align-self:flex-start; }
.dots { display:flex; gap:4px; padding:.2rem 0; }
.dots span { width:5px; height:5px; border-radius:50%; background:var(--text3); animation:dot 1.2s ease-in-out infinite; }
.dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}
@keyframes dot{0%,80%,100%{transform:scale(1);opacity:.5}40%{transform:scale(1.3);opacity:1}}
#chat-foot {
  padding:.6rem .75rem;
  border-top:1px solid var(--border);
  display:flex; gap:.5rem; flex-shrink:0;
}
#chat-in {
  flex:1; background:var(--bg);
  border:1px solid var(--border);
  padding:.5rem .7rem;
  font:inherit; font-size:.84rem; color:var(--text);
  resize:none; max-height:80px; line-height:1.5;
  transition:border-color var(--t);
}
#chat-in:focus { outline:none; border-color:rgba(201,255,66,.4); }
#chat-in::placeholder { color:var(--text3); }
#chat-send {
  width:34px; height:34px; flex-shrink:0;
  background:var(--accent); border:none; color:#000;
  display:flex; align-items:center; justify-content:center;
  align-self:flex-end;
  transition:opacity var(--t), transform var(--t);
}
#chat-send:hover { opacity:.85; transform:scale(1.05); }
#chat-send:disabled { opacity:.25; transform:none; cursor:not-allowed; }

/* ── ANIM ── */
.reveal {
  opacity:0;
  transform:translateY(20px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.in { opacity:1; transform:none; }

/* ── MOBILE OVERRIDES ── */
@media(max-width:640px){
  /* Tighten hero on phones */
  .hero { min-height:100svh; }
  .hero-scroll { display:none; }
  .hero-actions { flex-direction:column; align-items:flex-start; }
  .hero-actions .btn { width:100%; justify-content:center; }

  /* About stats row inline on mobile */
  .about-stats { flex-direction:row; flex-wrap:wrap; gap:.5rem; }
  .stat-row { flex-direction:column; align-items:flex-start; border:1px solid var(--border); padding:.6rem .75rem; flex:1; min-width:80px; border-bottom:1px solid var(--border); }
  .stat-n { font-size:1.5rem; }

  /* Projects */
  .proj-desc { max-width:100%; }

  /* Stack single col on very small */
  #stack .stack-grid { grid-template-columns:1fr; }

  /* Contact */
  .contact-info p { max-width:100%; }

  /* Footer stack */
  footer { flex-direction:column; align-items:flex-start; gap:.5rem; }

  /* Nav z-index fix */
  .nav-links { z-index:99; }
}

@media(max-width:400px){
  .hero-name { font-size:clamp(2.5rem,12vw,3rem); }
  .btn { padding:.6rem 1rem; font-size:.75rem; }
}