/* ============================================================
   Vladimír Večeřa — portfolio  ·  style.css
   Modrý „blueprint" styl · bez externích závislostí (systémové písmo).
   ============================================================ */

:root{
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,"Liberation Mono",monospace;

  --accent:#2563eb;
  --accent-2:#0ea5e9;
  --accent-ink:#1d4ed8;

  --bg-top:#e8eff9;
  --bg-bot:#f5f8fe;
  --grid:rgba(37,99,235,.06);

  --surface:#ffffff;
  --surface-2:#f3f7ff;
  --border:rgba(15,42,86,.10);
  --border-strong:rgba(15,42,86,.18);

  --text:#0e1c33;
  --muted:#54637c;
  --muted-2:#8693a8;

  --chip:#e7f0fe;
  --chip-ink:#1d4ed8;

  --topbar:rgba(232,239,249,.85);
  --shadow:0 1px 2px rgba(13,40,86,.05),0 8px 22px rgba(13,40,86,.07);
  --shadow-lg:0 18px 48px rgba(13,40,86,.16);

  --bp-line:rgba(37,99,235,.55);
  --bp-soft:rgba(37,99,235,.30);
  --bp-fill:rgba(37,99,235,.05);
}
[data-theme="dark"]{
  --accent:#5b9bff;--accent-2:#38bdf8;--accent-ink:#9bc1ff;
  --bg-top:#0a1122;--bg-bot:#070b16;
  --grid:rgba(120,170,255,.07);
  --surface:#101a30;--surface-2:#0d1526;
  --border:rgba(130,170,255,.14);--border-strong:rgba(130,170,255,.24);
  --text:#e7edfb;--muted:#9aabc8;--muted-2:#6b7a96;
  --chip:#15233f;--chip-ink:#9bc1ff;
  --topbar:rgba(10,17,34,.85);
  --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.45);
  --shadow-lg:0 22px 56px rgba(0,0,0,.6);
  --bp-line:rgba(120,170,255,.6);--bp-soft:rgba(120,170,255,.32);--bp-fill:rgba(120,170,255,.06);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  background:
    linear-gradient(var(--grid) 1px,transparent 1px) 0 0/28px 28px,
    linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/28px 28px,
    linear-gradient(180deg,var(--bg-top),var(--bg-bot) 46%);
  background-attachment:fixed;transition:background .4s,color .4s;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(37,99,235,.22)}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 22px}

/* ---------- TOP BAR (hlavička s URL projektů) ---------- */
.topbar{position:sticky;top:0;z-index:100;background:var(--topbar);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;flex-wrap:wrap;padding:8px 0}
.brand{display:flex;align-items:center;gap:11px}
.brand .mk{width:38px;height:38px;border-radius:10px;flex:none;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:.92rem;box-shadow:0 6px 16px rgba(37,99,235,.4)}
.brand .mk svg{width:21px;height:21px}
.brand .bn{font-weight:800;font-size:1rem;letter-spacing:-.01em;line-height:1.15}
.brand .bn small{display:block;font-weight:500;font-size:.72rem;color:var(--muted-2);letter-spacing:.02em}
.tb-right{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.url-chips{display:flex;gap:7px;flex-wrap:wrap}
.url-chips a{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:.8rem;font-weight:600;
  color:var(--chip-ink);background:var(--chip);border:1px solid var(--border);padding:7px 11px;border-radius:9px;
  transition:border-color .2s,transform .2s,background .2s}
.url-chips a:hover{border-color:var(--accent);transform:translateY(-1px)}
.url-chips a svg{width:13px;height:13px;opacity:.8}
.theme-toggle{width:40px;height:40px;flex:none;border-radius:11px;border:1px solid var(--border);background:var(--surface);
  color:var(--text);cursor:pointer;display:grid;place-items:center;transition:transform .2s,border-color .2s}
.theme-toggle:hover{transform:translateY(-1px);border-color:var(--border-strong)}
.theme-toggle svg{width:19px;height:19px}
.theme-toggle .moon{display:none}
[data-theme="dark"] .theme-toggle .sun{display:none}
[data-theme="dark"] .theme-toggle .moon{display:block}

/* ---------- HERO ---------- */
main{padding:44px 0 10px}
.hero{display:grid;grid-template-columns:1.04fr .96fr;gap:38px;align-items:center}
.hero-main{min-width:0}
.avatar-row{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.avatar{width:74px;height:74px;flex:none;position:relative;border-radius:18px;padding:2px;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.avatar .inner{width:100%;height:100%;border-radius:16px;overflow:hidden;background:var(--surface)}
.avatar-img{width:100%;height:100%;object-fit:cover;object-position:center}
.avatar-mono{width:100%;height:100%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:1.6rem;font-weight:800}
.cred{display:inline-flex;align-items:center;gap:9px;padding:8px 14px;border-radius:999px;background:var(--surface);
  border:1px solid var(--border);box-shadow:var(--shadow);font-size:.84rem;font-weight:600;color:var(--muted)}
.cred .ico{display:inline-flex;color:var(--accent)}
.cred .ico svg{width:15px;height:15px}
.eyebrow{font-family:var(--mono);font-size:.8rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:10px}
h1{font-size:clamp(2.3rem,5.6vw,3.5rem);font-weight:800;letter-spacing:-.03em;line-height:1.04}
.hero .role{margin-top:12px;font-size:clamp(1.05rem,2.4vw,1.28rem);font-weight:700;color:var(--text)}
.hero .tagline{margin-top:10px;font-size:1.02rem;color:var(--muted);max-width:540px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 19px;border-radius:12px;font-weight:600;font-size:.92rem;
  cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,border-color .2s}
.btn svg{width:16px;height:16px}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.34)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(37,99,235,.44)}
.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.hstats{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:24px;border-top:1px solid var(--border)}
.hstats .num{font-size:1.7rem;font-weight:800;letter-spacing:-.02em;color:var(--accent);line-height:1}
.hstats .lbl{font-size:.8rem;color:var(--muted);margin-top:5px}

/* hero blueprint panel */
.hero-visual{position:relative;border-radius:20px;border:1px solid var(--border);background:var(--surface);
  box-shadow:var(--shadow-lg);padding:16px;overflow:hidden}
.hero-visual::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(var(--grid) 1px,transparent 1px) 0 0/22px 22px,linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/22px 22px}
.hv-cap{position:absolute;top:14px;left:16px;z-index:1;font-family:var(--mono);font-size:.74rem;font-weight:600;color:var(--muted-2)}
.hv-dot{position:absolute;top:16px;right:16px;z-index:1;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(37,99,235,.18)}
.bp{position:relative;z-index:1;width:100%;height:auto;display:block}
.bp-line{fill:none;stroke:var(--bp-line);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.bp-soft{fill:none;stroke:var(--bp-soft);stroke-width:1.4;stroke-dasharray:5 6;stroke-linecap:round}
.bp-fill{fill:var(--bp-fill);stroke:none}
.bp-node{fill:var(--surface);stroke:var(--accent);stroke-width:2}
.bp-dot{fill:var(--accent)}
.bp-weather{fill:none;stroke:var(--accent-2);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.bp-label{fill:var(--muted);font-family:var(--mono);font-size:12.5px;font-weight:600}
.bp-chip{fill:var(--accent-ink);font-family:var(--mono);font-size:13px;font-weight:700}

/* hero foto (reálný vizuál) */
.hv-photo{width:100%;height:auto;display:block;border-radius:14px}
.hv-tag{position:absolute;left:20px;bottom:20px;font-family:var(--mono);font-size:.74rem;font-weight:600;color:#fff;
  background:rgba(11,28,54,.58);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);padding:6px 11px;border-radius:8px;letter-spacing:.02em}

/* mobilní ukázka (Android) */
.appshow{display:flex;align-items:center;gap:30px;margin-top:16px;background:var(--surface);border:1px solid var(--border);
  border-radius:18px;padding:24px 30px;box-shadow:var(--shadow)}
.appshow-phone{flex:none}
.appshow-phone img{width:184px;height:auto;display:block;border-radius:26px;border:7px solid #0e1526;box-shadow:var(--shadow-lg)}
[data-theme="dark"] .appshow-phone img{border-color:#05080f}
.appshow-text{min-width:0}
.appshow-text h3{font-size:1.2rem;font-weight:800;letter-spacing:-.01em;margin-top:2px}
.appshow-text p{margin:10px 0 16px;color:var(--muted);font-size:.95rem;max-width:540px}
@media(max-width:680px){
  .appshow{flex-direction:column;text-align:center;gap:18px;padding:24px 20px}
  .appshow-text p{margin-left:auto;margin-right:auto}
  .appshow-text .url{margin:0 auto}
}

/* ---------- SECTIONS ---------- */
section.block{margin-top:48px}
.seclbl{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:.8rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.seclbl .no{color:var(--accent);font-weight:700}
.seclbl::after{content:"";flex:1;height:1px;background:var(--border)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.block-intro{color:var(--muted);font-size:1rem;max-width:700px;margin:-6px 0 18px}
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.gallery figure{position:relative;margin:0;border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.gallery img{width:100%;height:300px;object-fit:cover;display:block;transition:transform .45s cubic-bezier(.16,1,.3,1)}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;left:14px;bottom:14px;font-family:var(--mono);font-size:.76rem;font-weight:600;color:#fff;background:rgba(11,28,54,.58);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);padding:6px 11px;border-radius:8px}
@media(max-width:680px){.grid2{grid-template-columns:1fr}.gallery{grid-template-columns:1fr}.gallery img{height:240px}}
@media(prefers-reduced-motion:reduce){.gallery figure:hover img{transform:none}}

/* project card (blueprint, URL zvýrazněná) */
.pcard{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:16px;padding:24px 22px;box-shadow:var(--shadow);overflow:hidden;
  transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .28s,border-color .28s}
.pcard::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.pcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}
.pcard .top{display:flex;align-items:center;gap:13px;margin-top:4px}
.pcard .appico{width:46px;height:46px;flex:none;border-radius:12px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--accent),var(--accent-2));box-shadow:0 8px 18px rgba(37,99,235,.34)}
.pcard .appico svg{width:24px;height:24px}
.pcard h3{font-size:1.14rem;font-weight:800;letter-spacing:-.01em}
.pcard p{margin-top:12px;font-size:.9rem;color:var(--muted);flex:1}
.url{display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:10px;
  background:var(--chip);color:var(--chip-ink);font-family:var(--mono);font-weight:700;font-size:.84rem;transition:background .2s,transform .2s}
.url:hover{transform:translateX(2px)}
.url svg{width:13px;height:13px;flex:none}
.pcard .url{margin-top:15px;align-self:flex-start}

/* featured live project (Luhamet) */
.feature{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:18px;
  padding:26px 24px;box-shadow:var(--shadow);overflow:hidden;margin-bottom:16px;
  transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .28s,border-color .28s}
.feature::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}
.feature-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:4px}
.feature .appico{width:48px;height:48px;flex:none;border-radius:13px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--accent),var(--accent-2));box-shadow:0 8px 18px rgba(37,99,235,.34)}
.feature .appico svg{width:25px;height:25px}
.feature-title{font-size:1.22rem;font-weight:800;letter-spacing:-.01em}
.feature-sub{font-family:var(--mono);font-size:.78rem;color:var(--muted);margin-top:1px}
.live-badge{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;
  background:rgba(16,185,129,.13);color:#0e9f6e;font-weight:700;font-size:.76rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.06em}
[data-theme="dark"] .live-badge{color:#34d399;background:rgba(16,185,129,.18)}
.live-dot{width:8px;height:8px;border-radius:50%;background:currentColor;animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)}70%{box-shadow:0 0 0 7px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}
.feature .url{margin-left:auto}
.feature p{margin-top:14px;color:var(--muted);font-size:.95rem;max-width:780px}
.metric-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.metric-chips span{display:inline-flex;align-items:center;gap:7px;font-size:.82rem;font-weight:600;
  padding:7px 12px;border-radius:9px;background:var(--surface-2);border:1px solid var(--border);color:var(--text)}
.metric-chips span svg{width:14px;height:14px;color:var(--accent)}

/* service card (co dělám) */
.scard{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px 20px;box-shadow:var(--shadow);
  transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .28s,border-color .28s}
.scard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}
.scard .ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:13px;
  background:var(--chip);color:var(--accent)}
.scard .ico svg{width:23px;height:23px}
.scard h3{font-size:1.02rem;font-weight:700;letter-spacing:-.01em}
.scard p{margin-top:5px;font-size:.86rem;color:var(--muted)}

/* technologie chips */
.techstrip{display:flex;flex-wrap:wrap;gap:8px}
.techstrip span{font-family:var(--mono);font-size:.82rem;font-weight:600;padding:8px 13px;border-radius:9px;
  background:var(--surface);border:1px solid var(--border);color:var(--text);box-shadow:var(--shadow)}

/* kontakt cards */
.icard{display:flex;align-items:center;gap:15px;background:var(--surface);border:1px solid var(--border);
  border-radius:16px;padding:17px 18px;box-shadow:var(--shadow);
  transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .28s,border-color .28s}
a.icard:hover,.icard.hov:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}
.icard .ico{width:46px;height:46px;flex:none;border-radius:12px;display:grid;place-items:center;background:var(--chip);color:var(--accent)}
.icard .ico svg{width:23px;height:23px}
.icard .tt{display:block;font-weight:700;font-size:1rem;letter-spacing:-.01em;line-height:1.25}
.icard .ds{display:block;font-size:.86rem;color:var(--muted);margin-top:2px}

/* ---------- FOOTER ---------- */
footer{margin-top:54px;padding:28px 0 46px;border-top:1px solid var(--border);text-align:center}
footer .flinks{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:13px}
footer .flinks a{font-family:var(--mono);font-size:.85rem;font-weight:600;color:var(--muted);transition:color .2s}
footer .flinks a:hover{color:var(--accent)}
footer .copy{font-size:.82rem;color:var(--muted-2)}
footer .copy b{color:var(--text);font-weight:700}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- RESPONSIVE ---------- */
@media(max-width:880px){
  .hero{grid-template-columns:1fr;gap:30px}
  .hero-visual{order:2;max-width:520px}
  .grid4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .grid3{grid-template-columns:1fr}
  .url-chips .hide-sm{display:none}
  .hstats{gap:20px}
  .hstats .num{font-size:1.45rem}
}
@media(max-width:430px){.grid4{grid-template-columns:1fr}.wrap{padding:0 16px}.brand .bn small{display:none}}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important;transition:none}
  .scard:hover,.pcard:hover,a.icard:hover,.feature:hover{transform:none}
  .live-dot{animation:none}
}