/* ==========================================================================
   Visual Java — site stylesheet
   Design: light "workbench" theme. The pixel-diamond mark (blue V / orange J)
   is the one recurring signature — its stepped silhouette becomes a clip-path
   motif used for badges, section markers and the corner of code panels.
   ========================================================================== */

:root{
  /* ---- palette -------------------------------------------------------- */
  --paper:      #f5f6f8;      /* page background: cool workshop white */
  --paper-2:    #eceef2;      /* recessed panels */
  --surface:    #ffffff;      /* cards */
  --line:       #dde1e8;      /* hairline borders */
  --line-2:     #cfd4dd;
  --ink:        #12151c;      /* primary text, near-black navy */
  --ink-soft:   #4b5262;      /* secondary text */
  --ink-faint:  #848c9c;      /* tertiary / captions */
  --blue:       #1f6fe0;      /* logo blue */
  --blue-deep:  #123a82;
  --orange:     #f5a623;      /* logo orange */
  --orange-deep:#c9770a;
  --console:    #12151c;      /* dark console surfaces (echoes IDE screenshots) */
  --console-2:  #1b202c;
  --console-line:#2a3140;
  --console-ink:#e7ebf3;
  --code-blue:  #6fb1ff;
  --code-orange:#ffbe66;
  --code-green: #8fd48a;
  --code-pink:  #e493c4;
  --radius-s: 3px;
  --radius-m: 6px;
  --shadow-1: 0 1px 2px rgba(18,21,28,.05), 0 1px 1px rgba(18,21,28,.04);
  --shadow-2: 0 8px 24px rgba(18,21,28,.08), 0 2px 6px rgba(18,21,28,.06);
  --maxw: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ padding:0; margin:0; }
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"IBM Plex Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul,ol{ margin:0; padding:0; }
li{ list-style:none; }
button{ font:inherit; }
.mono, code, pre, kbd{ font-family:"JetBrains Mono","IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace; }

h1,h2,h3,h4{
  font-family:"Space Grotesk","IBM Plex Sans",sans-serif;
  font-weight:600;
  letter-spacing:-0.01em;
  color:var(--ink);
  margin:0 0 .5em;
}
h1{ font-size:clamp(2.1rem,4vw,3.4rem); line-height:1.06; letter-spacing:-0.02em; }
h2{ font-size:clamp(1.5rem,2.6vw,2.1rem); line-height:1.15; }
h3{ font-size:1.28rem; }
h4{ font-size:1.02rem; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft); }
p{ margin:0 0 1em; color:var(--ink-soft); }
p:last-child{ margin-bottom:0; }
strong{ color:var(--ink); font-weight:600; }

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

/* ---- pixel-diamond signature clip-path -------------------------------- */
.pixel-diamond{
  clip-path: polygon(
    50% 0%, 62% 8%, 62% 16%, 74% 16%, 74% 24%, 86% 24%, 86% 32%,
    94% 32%, 94% 40%, 100% 40%, 100% 60%, 94% 60%, 94% 68%,
    86% 68%, 86% 76%, 74% 76%, 74% 84%, 62% 84%, 62% 92%,
    50% 100%, 38% 92%, 38% 84%, 26% 84%, 26% 76%, 14% 76%,
    14% 68%, 6% 68%, 6% 60%, 0% 60%, 0% 40%, 6% 40%, 6% 32%,
    14% 32%, 14% 24%, 26% 24%, 26% 16%, 38% 16%, 38% 8%
  );
}

/* ==========================================================================
   Top bar
   ========================================================================== */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(245,246,248,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--maxw); margin:0 auto; padding:0 28px;
  height:64px; display:flex; align-items:center; gap:28px;
}
.brand{ display:flex; align-items:center; gap:10px; font-family:"Space Grotesk",sans-serif; font-weight:700; font-size:1.06rem; margin-right:6px; white-space:nowrap; }
.brand img{ width:28px; height:28px; }
.brand b{ color:var(--blue); }
.brand span{ color:var(--orange); }

.mainnav{ display:flex; align-items:center; gap:2px; flex:1; }
.mainnav a{
  padding:9px 13px; border-radius:var(--radius-s); font-size:.93rem; color:var(--ink-soft);
  font-weight:500; transition:background .15s,color .15s;
}
.mainnav a:hover{ background:var(--paper-2); color:var(--ink); }
.mainnav a.active{ color:var(--blue); }

.nav-tools{ display:flex; align-items:center; gap:10px; }
.lang-switch{
  display:flex; border:1px solid var(--line-2); border-radius:20px; overflow:hidden; font-size:.78rem; font-weight:700;
}
.lang-switch button{
  border:0; background:transparent; padding:6px 12px; color:var(--ink-faint); cursor:pointer; letter-spacing:.03em;
}
.lang-switch button.active{ background:var(--ink); color:#fff; }

.btn{
  display:inline-flex; align-items:center; gap:8px; justify-content:center;
  padding:10px 18px; border-radius:var(--radius-s); font-weight:600; font-size:.92rem;
  border:1px solid transparent; cursor:pointer; transition:transform .12s, box-shadow .12s, background .15s, border-color .15s;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{ background:var(--blue); color:#fff; box-shadow:0 1px 0 rgba(0,0,0,.08), 0 6px 16px rgba(31,111,224,.25); }
.btn-primary:hover{ background:var(--blue-deep); }
.btn-orange{ background:var(--orange); color:#241a04; box-shadow:0 6px 16px rgba(245,166,35,.28); }
.btn-orange:hover{ background:var(--orange-deep); color:#fff; }
.btn-ghost{ background:transparent; border-color:var(--line-2); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--ink-faint); background:var(--paper-2); }
.btn-sm{ padding:7px 13px; font-size:.82rem; }
.btn-block{ width:100%; }

.hamburger{ display:none; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative; overflow:hidden;
  padding:76px 0 84px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(760px 420px at 82% -10%, rgba(31,111,224,.10), transparent 60%),
    radial-gradient(600px 360px at 10% 110%, rgba(245,166,35,.10), transparent 60%),
    var(--paper);
}
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:.78rem; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase; color:var(--blue-deep); background:#eaf1fd; border:1px solid #cfe1fb;
  padding:6px 12px; border-radius:20px; margin-bottom:18px;
}
.eyebrow .dot{ width:6px; height:6px; border-radius:50%; background:var(--orange); }
.hero h1{ margin-bottom:20px; }
.hero h1 .hl-blue{ color:var(--blue); }
.hero h1 .hl-orange{ color:var(--orange-deep); }
.hero-lede{ font-size:1.12rem; max-width:52ch; margin-bottom:30px; }
.hero-ctas{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:34px; }
.hero-meta{ display:flex; gap:26px; flex-wrap:wrap; }
.hero-meta div{ display:flex; flex-direction:column; }
.hero-meta b{ font-family:"Space Grotesk",sans-serif; font-size:1.3rem; }
.hero-meta span{ font-size:.78rem; color:var(--ink-faint); }

.hero-art{ position:relative; }
.hero-art .frame{
  position:relative; border-radius:10px; overflow:hidden; border:1px solid var(--line-2);
  box-shadow:var(--shadow-2); background:var(--console);
}
.hero-art .frame img{ width:100%; display:block; }
.hero-art .frame .barline{
  height:34px; background:var(--console-2); display:flex; align-items:center; gap:6px; padding:0 12px;
  border-bottom:1px solid var(--console-line);
}
.hero-art .frame .barline i{ width:9px; height:9px; border-radius:50%; display:block; }
.hero-art .frame .barline i:nth-child(1){ background:#e5645b; }
.hero-art .frame .barline i:nth-child(2){ background:#e5b13b; }
.hero-art .frame .barline i:nth-child(3){ background:#4bb865; }
.hero-badge{
  position:absolute; right:-18px; bottom:-18px; width:96px; height:96px;
  background:var(--surface); border:1px solid var(--line-2); box-shadow:var(--shadow-2);
  display:flex; align-items:center; justify-content:center; padding:14px;
}
.hero-badge img{ width:100%; }

/* ==========================================================================
   Sections generic
   ========================================================================== */
section{ padding:76px 0; }
section.tight{ padding:56px 0; }
.section-head{ max-width:640px; margin:0 0 40px; }
.section-head h4{ margin-bottom:10px; }
.alt{ background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }

.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-m);
  padding:24px; box-shadow:var(--shadow-1);
}
.card h3{ display:flex; align-items:center; gap:10px; margin-bottom:8px; }
.card .ic{
  width:34px; height:34px; border-radius:8px; display:flex; align-items:center; justify-content:center;
  background:#eaf1fd; color:var(--blue); flex:none; font-weight:700; font-family:"Space Grotesk",sans-serif;
}
.card .ic.o{ background:#fdf1de; color:var(--orange-deep); }
.card p{ font-size:.94rem; }

.shot{
  border-radius:8px; overflow:hidden; border:1px solid var(--line-2); box-shadow:var(--shadow-1); background:#000;
}
.shot img{ width:100%; }
figure{ margin:0; }
figcaption{ font-size:.82rem; color:var(--ink-faint); margin-top:10px; text-align:center; }

/* ---- timeline (used on home for the "team / mission") ----------------- */
.split{ display:grid; grid-template-columns:.9fr 1.1fr; gap:56px; align-items:center; }
.split.rev{ grid-template-columns:1.1fr .9fr; }
.split.rev .split-media{ order:2; }

/* ==========================================================================
   Footer
   ========================================================================== */
footer{ border-top:1px solid var(--line); background:var(--surface); padding:52px 0 26px; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:40px; }
.foot-brand{ display:flex; align-items:center; gap:10px; font-family:"Space Grotesk",sans-serif; font-weight:700; margin-bottom:12px; }
.foot-brand img{ width:24px; }
footer h5{ font-size:.78rem; text-transform:uppercase; letter-spacing:.07em; color:var(--ink-faint); margin-bottom:14px; }
footer ul li{ margin-bottom:9px; }
footer ul a{ font-size:.92rem; color:var(--ink-soft); }
footer ul a:hover{ color:var(--blue); }
.foot-bottom{
  border-top:1px solid var(--line); padding-top:22px; display:flex; justify-content:space-between;
  align-items:center; font-size:.82rem; color:var(--ink-faint); flex-wrap:wrap; gap:10px;
}
.foot-bottom .jter{ display:flex; align-items:center; gap:8px; }
.foot-bottom .jter img{ height:16px; width:auto; }

/* ==========================================================================
   Code blocks
   ========================================================================== */
pre.code{
  background:var(--console); color:var(--console-ink); border-radius:8px; padding:18px 20px;
  overflow:auto; font-size:.86rem; line-height:1.62; border:1px solid var(--console-line);
  box-shadow:var(--shadow-1);
}
pre.code .cm{ color:#7b8494; font-style:italic; }
pre.code .kw{ color:var(--code-pink); }
pre.code .tp{ color:var(--code-blue); }
pre.code .st{ color:var(--code-green); }
pre.code .nm{ color:var(--code-orange); }
pre.code .ev{ color:#ffd166; font-weight:600; }
.code-panel{ border-radius:8px; overflow:hidden; border:1px solid var(--console-line); box-shadow:var(--shadow-1); }
.code-panel .cp-head{
  background:var(--console-2); color:var(--ink-faint); font-size:.78rem; padding:9px 14px;
  display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid var(--console-line);
  font-family:"JetBrains Mono",monospace;
}
.code-panel pre.code{ border:0; border-radius:0; margin:0; }

/* ==========================================================================
   Buttons row / misc
   ========================================================================== */
.tag{
  display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.04em; text-transform:uppercase;
  padding:3px 9px; border-radius:4px; background:var(--paper-2); color:var(--ink-soft); border:1px solid var(--line-2);
}
.tag.current{ background:#e9f6ea; color:#1e7a34; border-color:#c9e9cc; }
.tag.blue{ background:#eaf1fd; color:var(--blue-deep); border-color:#cfe1fb; }
.tag.orange{ background:#fdf1de; color:var(--orange-deep); border-color:#f6dfae; }

hr.rule{ border:0; border-top:1px solid var(--line); margin:34px 0; }

.two-col-text{ columns:2; column-gap:40px; }
.two-col-text p{ break-inside:avoid; }

/* ==========================================================================
   Docs layout (wiki / api)
   ========================================================================== */
.docs-shell{ display:grid; grid-template-columns:250px 1fr; gap:44px; align-items:start; }
.docs-side{
  position:sticky; top:84px; max-height:calc(100vh - 110px); overflow-y:auto;
  padding-right:6px;
}
.docs-side .grp{ margin-bottom:22px; }
.docs-side .grp h5{ font-size:.72rem; text-transform:uppercase; letter-spacing:.07em; color:var(--ink-faint); margin-bottom:9px; }
.docs-side a{
  display:block; padding:6px 10px; margin-bottom:2px; border-radius:6px; font-size:.88rem; color:var(--ink-soft);
  border-left:2px solid transparent;
}
.docs-side a:hover{ color:var(--ink); background:var(--paper-2); }
.docs-side a.active{ color:var(--blue); border-left-color:var(--blue); background:#eaf1fd; font-weight:600; }

.docs-content section.doc-section{
  padding:0 0 46px; margin-bottom:46px; border-bottom:1px solid var(--line);
  scroll-margin-top:84px;
}
.docs-content section.doc-section:last-child{ border-bottom:0; }
.docs-content h2{ display:flex; align-items:center; gap:10px; }
.docs-content h2 .num{
  font-family:"JetBrains Mono",monospace; font-size:.9rem; color:var(--ink-faint); font-weight:400;
}
.callout{
  border:1px solid var(--line-2); border-left:3px solid var(--blue); background:#f6f9ff;
  border-radius:6px; padding:14px 16px; font-size:.92rem; margin:18px 0;
}
.callout.warn{ border-left-color:var(--orange); background:#fff9ee; }
.callout p{ margin:0; }
.callout b{ display:block; font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; margin-bottom:4px; color:var(--ink-soft); }

table.tbl{ width:100%; border-collapse:collapse; font-size:.9rem; margin:14px 0 22px; }
table.tbl th, table.tbl td{ text-align:left; padding:9px 12px; border-bottom:1px solid var(--line); vertical-align:top; }
table.tbl th{ color:var(--ink-faint); text-transform:uppercase; font-size:.72rem; letter-spacing:.06em; }
table.tbl code{ font-size:.86em; background:var(--paper-2); padding:1px 5px; border-radius:4px; }

/* ---- API method entries ----------------------------------------------- */
.api-class{ margin-bottom:52px; scroll-margin-top:84px; }
.api-class-head{ display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin-bottom:6px; }
.api-class-head h3{ font-family:"JetBrains Mono",monospace; font-size:1.2rem; margin:0; }
.method{
  border:1px solid var(--line); border-radius:8px; margin-bottom:14px; overflow:hidden; background:var(--surface);
}
.method-sig{
  font-family:"JetBrains Mono",monospace; font-size:.88rem; background:var(--paper-2);
  padding:10px 14px; border-bottom:1px solid var(--line); color:var(--blue-deep); font-weight:600;
  display:flex; flex-wrap:wrap; gap:8px; align-items:center;
}
.method-sig .ret{ color:var(--ink-faint); font-weight:400; }
.method-body{ padding:12px 14px 14px; }
.method-body p{ font-size:.9rem; margin-bottom:10px; }
.method-body pre.code{ font-size:.82rem; padding:12px 14px; }

/* ---- search box (api page) ---- */
.docs-search{
  width:100%; padding:9px 12px; border:1px solid var(--line-2); border-radius:6px; font-size:.85rem;
  margin-bottom:16px; background:var(--paper);
}

/* ==========================================================================
   Changelog
   ========================================================================== */
.version-block{ display:grid; grid-template-columns:190px 1fr; gap:32px; padding:32px 0; border-bottom:1px solid var(--line); }
.version-block:first-child{ padding-top:0; }
.version-side{ position:sticky; top:84px; align-self:start; }
.version-side .vnum{ font-family:"Space Grotesk",sans-serif; font-size:1.3rem; font-weight:700; }
.version-side .vdate{ font-size:.82rem; color:var(--ink-faint); margin-top:4px; }
.version-block ul{ margin:14px 0 0; }
.version-block li{
  position:relative; padding-left:18px; margin-bottom:8px; font-size:.95rem; color:var(--ink-soft);
}
.version-block li::before{ content:"—"; position:absolute; left:0; color:var(--ink-faint); }
.version-block h4.grp-title{ margin:18px 0 4px; font-size:.78rem; color:var(--ink-faint); }

/* ==========================================================================
   Download page
   ========================================================================== */
.dl-hero{ text-align:center; padding:64px 0 40px; }
.dl-card{
  max-width:520px; margin:0 auto; background:var(--surface); border:1px solid var(--line);
  border-radius:12px; padding:34px; box-shadow:var(--shadow-2); text-align:left;
}
.dl-card .plat{ display:flex; align-items:center; gap:12px; margin-bottom:6px; }
.dl-card .plat .ic{ width:40px; height:40px; border-radius:8px; background:var(--paper-2); display:flex; align-items:center; justify-content:center; font-weight:700; }
.dl-req{ font-size:.84rem; color:var(--ink-faint); margin-top:14px; }
.steps{ counter-reset:step; }
.steps li{
  counter-increment:step; position:relative; padding-left:40px; margin-bottom:18px;
}
.steps li::before{
  content:counter(step); position:absolute; left:0; top:-2px; width:26px; height:26px; border-radius:50%;
  background:var(--blue); color:#fff; font-weight:700; font-size:.82rem; display:flex; align-items:center; justify-content:center;
  font-family:"Space Grotesk",sans-serif;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .split, .split.rev{ grid-template-columns:1fr; }
  .split.rev .split-media{ order:0; }
  .grid-3, .grid-4{ grid-template-columns:repeat(2,1fr); }
  .foot-grid{ grid-template-columns:1fr 1fr; }
  .docs-shell{ grid-template-columns:1fr; }
  .docs-side{ position:relative; top:0; max-height:none; margin-bottom:30px; border:1px solid var(--line); border-radius:8px; padding:16px; background:var(--surface); }
  .two-col-text{ columns:1; }
  .version-block{ grid-template-columns:1fr; gap:8px; }
  .version-side{ position:static; display:flex; align-items:baseline; gap:10px; }
}
@media (max-width: 760px){
  .mainnav{ display:none; }
  .hamburger{
    display:flex; align-items:center; justify-content:center; width:38px; height:38px; border:1px solid var(--line-2);
    border-radius:6px; background:transparent; margin-left:auto; cursor:pointer;
  }
  .hamburger span, .hamburger span::before, .hamburger span::after{
    content:""; display:block; width:16px; height:2px; background:var(--ink); position:relative;
  }
  .hamburger span::before{ position:absolute; top:-5px; }
  .hamburger span::after{ position:absolute; top:5px; }
  .mainnav.open{
    display:flex; flex-direction:column; position:absolute; top:64px; left:0; right:0; background:var(--surface);
    border-bottom:1px solid var(--line); padding:10px 20px 18px; gap:2px; box-shadow:var(--shadow-2);
  }
  .grid-3, .grid-4, .grid-2{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr 1fr; }
  section{ padding:52px 0; }
  .hero{ padding:48px 0 56px; }
}