/* ============================================================
   vizgres.com — landing styles
   "a beautifully typeset terminal"
   Space Grotesk (display) · JetBrains Mono (code/keys)
   ============================================================ */

/* ---------- tokens ---------- */
:root, [data-theme="dark"]{
  --bg:#0B0E14;
  --bg-2:#0D1117;
  --surface:#11161F;
  --surface-2:#161D27;
  --border:#222A35;
  --border-2:#2C3540;
  --text:#E6EDF3;
  --text-2:#AEB7C2;
  --muted:#7E8895;
  --dim:#5A636E;
  --blue:#4D90D9;
  --blue-br:#6BB0FF;
  --cyan:#3DD2E0;
  --green:#46B450;
  --yellow:#D8A93B;
  --magenta:#BC8CFF;
  --blue-soft:rgba(77,144,217,0.12);
  --cyan-soft:rgba(61,210,224,0.11);
  --green-soft:rgba(70,180,80,0.12);
  --glow:radial-gradient(ellipse 70% 60% at 50% -10%, rgba(77,144,217,0.16), transparent 65%);
  --shadow-lg:0 24px 70px -20px rgba(0,0,0,0.7);
  --shadow-sm:0 2px 14px rgba(0,0,0,0.4);
}
[data-theme="light"]{
  --bg:#FBFCFD;
  --bg-2:#FFFFFF;
  --surface:#FFFFFF;
  --surface-2:#F4F7FA;
  --border:#E1E7ED;
  --border-2:#D3DBE3;
  --text:#10151C;
  --text-2:#3A4654;
  --muted:#5B6675;
  --dim:#8a93a0;
  --blue:#1F6FD4;
  --blue-br:#0A56C2;
  --cyan:#0E97A8;
  --green:#1F8A3B;
  --yellow:#9A6700;
  --magenta:#8250df;
  --blue-soft:rgba(31,111,212,0.09);
  --cyan-soft:rgba(14,151,168,0.10);
  --green-soft:rgba(31,138,59,0.10);
  --glow:radial-gradient(ellipse 70% 60% at 50% -10%, rgba(31,111,212,0.10), transparent 65%);
  --shadow-lg:0 24px 70px -28px rgba(20,40,80,0.28);
  --shadow-sm:0 2px 14px rgba(20,40,80,0.07);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Space Grotesk',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease,color .25s ease;
  overflow-x:hidden;
}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}
a{color:inherit;text-decoration:none}
::selection{background:var(--cyan);color:#04121b}

.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.wrap-narrow{max-width:920px;margin:0 auto;padding:0 28px}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.06em;
  color:var(--muted);text-transform:uppercase;
}
.eyebrow .prompt{color:var(--cyan);font-size:13px}
.section-tag{
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:14px;display:block;
}
.section-h{font-size:clamp(26px,3.4vw,38px);font-weight:600;letter-spacing:-.025em;line-height:1.1}
.section-sub{color:var(--muted);font-size:16px;margin-top:12px;max-width:560px;line-height:1.6}

/* ---------- brand mark ---------- */
.mark{display:block}
.mark-tile{fill:var(--blue)}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:600;font-size:19px;letter-spacing:-.02em}
.brand .mark{width:26px;height:26px}
.brand .cur{display:inline-block;width:.5ch;height:1.05em;background:var(--cyan);margin-left:1px;transform:translateY(.12em);border-radius:1.5px}

/* ---------- nav ---------- */
nav{
  position:sticky;top:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:border-color .2s, background .2s;
}
nav.scrolled{
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(14px) saturate(1.2);
  border-bottom-color:var(--border);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  font-size:14px;color:var(--text-2);padding:8px 13px;border-radius:8px;
  transition:color .15s,background .15s;font-weight:500;
}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-ico{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px}
.nav-sep{width:1px;height:20px;background:var(--border);margin:0 6px}
.ver-chip{
  font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--cyan);
  background:var(--cyan-soft);border:1px solid color-mix(in srgb,var(--cyan) 30%,transparent);
  padding:3px 9px;border-radius:20px;
}
.toggle{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--border);
  background:var(--surface);color:var(--muted);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:all .15s;
}
.toggle:hover{color:var(--text);border-color:var(--border-2)}
.toggle svg{width:17px;height:17px}
[data-theme="dark"] .i-sun{display:none}
[data-theme="light"] .i-moon{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 20px;border-radius:11px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .16s ease;
  font-family:inherit;
}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 22px -8px var(--blue)}
.btn-primary:hover{background:var(--blue-br);transform:translateY(-1px);box-shadow:0 10px 28px -8px var(--blue)}
.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--border-2);background:var(--surface-2)}

/* ---------- hero ---------- */
.hero{position:relative;padding:78px 0 36px;text-align:center;background:var(--glow)}
.hero h1{
  font-size:clamp(34px,6vw,62px);font-weight:600;letter-spacing:-.035em;line-height:1.04;
  max-width:16ch;margin:20px auto 0;text-wrap:balance;
}
.hero h1 .hl{color:var(--blue);position:relative;white-space:nowrap}
.hero-sub{font-size:clamp(17px,2.2vw,20px);color:var(--text-2);margin:22px auto 0;max-width:50ch;line-height:1.55}
.hero-cta{margin-top:32px;display:flex;gap:13px;justify-content:center;flex-wrap:wrap}

.install{
  margin:24px auto 0;display:inline-flex;align-items:center;gap:14px;white-space:nowrap;
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  padding:11px 12px 11px 18px;font-family:'JetBrains Mono',monospace;font-size:14.5px;
  box-shadow:var(--shadow-sm);max-width:calc(100vw - 56px);
}
.install .p{color:var(--cyan)}
.install .cmd{color:var(--text);white-space:nowrap}
.install .copy{
  display:inline-flex;align-items:center;gap:6px;border:none;cursor:pointer;
  background:var(--surface-2);color:var(--muted);border-radius:7px;padding:7px 10px;
  font-family:inherit;font-size:12px;transition:all .15s;
}
.install .copy:hover{color:var(--text);background:var(--border)}
.install .copy svg{width:14px;height:14px}

/* ---------- terminal frame (hero TUI) ---------- */
.stage{margin-top:54px;perspective:1800px}
.frame-wrap{position:relative;max-width:1000px;margin:0 auto}
.frame-wrap::before{
  content:"";position:absolute;inset:-2% -4% -16%;z-index:0;
  background:radial-gradient(ellipse 60% 80% at 50% 30%, rgba(77,144,217,0.18), transparent 70%);
  filter:blur(20px);pointer-events:none;
}
#heroTui{position:relative;z-index:1;border-radius:14px;box-shadow:var(--shadow-lg)}

/* ---------- marquee / proof ---------- */
.proof{border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-top:64px}
.proof-in{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 40px;padding:20px 28px}
.proof-item{display:inline-flex;align-items:center;gap:9px;font-family:'JetBrains Mono',monospace;font-size:13.5px;color:var(--text-2)}
.proof-item b{color:var(--text);font-weight:700}
.proof-item .d{color:var(--cyan)}

/* ---------- section base ---------- */
section{position:relative}
.block{padding:90px 0}
.block-head{margin-bottom:46px;max-width:640px}

/* ---------- features ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{
  background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;
  transition:border-color .18s,transform .18s,background .18s;position:relative;overflow:hidden;
}
.feat:hover{border-color:var(--border-2);transform:translateY(-3px)}
.feat-ic{
  width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;background:var(--blue-soft);color:var(--blue);
}
.feat-ic.c{background:var(--cyan-soft);color:var(--cyan)}
.feat-ic.g{background:var(--green-soft);color:var(--green)}
.feat-ic svg{width:21px;height:21px}
.feat h3{font-size:17px;font-weight:600;letter-spacing:-.01em;margin-bottom:7px}
.feat p{font-size:14px;color:var(--muted);line-height:1.6}
.feat p code{font-family:'JetBrains Mono',monospace;font-size:.92em;color:var(--cyan);background:var(--cyan-soft);padding:1px 5px;border-radius:4px}

/* ---------- explain split ---------- */
.split{display:grid;grid-template-columns:0.92fr 1.08fr;gap:54px;align-items:center}
.split .copy h2{font-size:clamp(24px,3vw,34px);font-weight:600;letter-spacing:-.025em;line-height:1.12}
.split .copy p{color:var(--muted);font-size:16px;margin-top:16px;line-height:1.65}
.legend{display:flex;gap:18px;margin-top:22px;flex-wrap:wrap}
.legend span{display:inline-flex;align-items:center;gap:7px;font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--text-2)}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}
.explain-frame{border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden}

/* ---------- themes ---------- */
.theme-tabs{display:inline-flex;gap:6px;background:var(--surface);border:1px solid var(--border);padding:5px;border-radius:13px;margin-bottom:30px}
.theme-tab{
  font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--muted);
  padding:8px 16px;border-radius:9px;cursor:pointer;border:none;background:none;transition:all .15s;
}
.theme-tab:hover{color:var(--text)}
.theme-tab.active{background:var(--blue);color:#fff}
.theme-stage{border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;max-width:980px}

/* ---------- keybindings ---------- */
.keys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 22px}
.kcol{display:flex;flex-direction:column;gap:2px}
.kgroup{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin:10px 0 8px;padding-bottom:7px;border-bottom:1px solid var(--border)}
.krow{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:7px 4px;border-radius:7px;transition:background .12s}
.krow:hover{background:var(--surface)}
.krow .lab{font-size:14px;color:var(--text-2)}
.kbd{
  font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--cyan);
  background:var(--surface);border:1px solid var(--border);border-bottom-width:2px;
  border-radius:6px;padding:3px 8px;white-space:nowrap;
}

/* ---------- install steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.step{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;position:relative}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--cyan);
  display:block;margin-bottom:14px;
}
.step h4{font-size:15px;font-weight:600;margin-bottom:12px}
.step .scode{
  display:block;font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--text-2);
  background:var(--bg-2);border:1px solid var(--border);border-radius:9px;padding:11px 13px;
  overflow-x:auto;white-space:nowrap;
}
.step .scode .p{color:var(--cyan)}

/* ---------- final cta ---------- */
.final{text-align:center;padding:96px 0}
.final h2{font-size:clamp(28px,4vw,44px);font-weight:600;letter-spacing:-.03em;line-height:1.08;max-width:18ch;margin:0 auto}
.final p{color:var(--muted);font-size:17px;margin:16px auto 0;max-width:46ch}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--border);padding:40px 0}
.foot-in{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px}
.foot-links{display:flex;align-items:center;gap:22px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.foot-links a:hover{color:var(--text)}
.foot-meta{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--dim)}
.foot-meta .ok{color:var(--green)}

/* ============================================================
   LIVE TUI  — faithful HTML terminal
   ============================================================ */
.tui{
  font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:clamp(7.5px, 1.18vw, 13px);
  line-height:1.55;
  text-align:left;
  border-radius:14px;
  border:1px solid var(--border-2);
  overflow:hidden;
  --row:1.55em;
}
.tui.has-chrome{border:1px solid var(--border-2)}
.tui-chrome{
  display:flex;align-items:center;gap:10px;
  height:2.7em;padding:0 1.1em;border-bottom:1px solid;
}
.tui-dots{display:flex;gap:.55em;flex:1;align-items:center}
.tui-dots:last-child{justify-content:flex-end}
.tui-dot{width:.82em;height:.82em;border-radius:50%;display:inline-block}
.tui-chrome-title{
  font-size:.92em;color:var(--muted);letter-spacing:.02em;white-space:nowrap;
  flex:0 0 auto;
}
.tui-screen{padding:.7em .8em .2em}
.tui-layout{display:grid;grid-template-columns:30ch 1fr;gap:.7em}
.tui-right{display:flex;flex-direction:column;gap:.9em;min-width:0}

.tpanel{
  position:relative;border:1px solid;border-radius:5px;
  padding:1.05em .85em .5em;min-width:0;overflow:visible;
}
.tpanel.col-tree{min-height:15.8em}
.tpanel.col-editor{min-height:9.6em}
.tpanel.col-results{min-height:8.2em}
.tpanel-title{
  position:absolute;top:-.72em;left:1em;padding:0 .45em;
  font-size:1em;line-height:1;white-space:nowrap;
}
.tpanel-body{position:relative;overflow:hidden}

.tline{white-space:pre;height:var(--row);line-height:var(--row);overflow:hidden}
.tcode{display:flex}
.tcode-text{white-space:pre}
.tcursor{display:inline-block;width:1ch;border-radius:1px}
.tcursor.blink{animation:tblink 1.05s steps(1) infinite}
@keyframes tblink{0%,50%{opacity:1}50.01%,100%{opacity:0}}

.ttabs{white-space:pre;height:var(--row);line-height:var(--row);padding-left:.2em}

.tgrid{display:grid;width:max-content;column-gap:0}
.tcell{
  white-space:pre;overflow:hidden;height:var(--row);line-height:var(--row);
  padding-right:1ch;
}
.tcell.thdr{margin-bottom:.1em}

.tfooter{margin-top:.35em;opacity:.95}

.tstatus{
  display:flex;align-items:center;justify-content:space-between;gap:1em;
  padding:.45em .9em .55em;white-space:nowrap;height:2.1em;line-height:1;
}
.tstatus-left,.tstatus-right{display:flex;align-items:center;overflow:hidden}
.tstatus-left{min-width:0;text-overflow:ellipsis}
.tcmdbar{border-top:1px solid var(--border)}

/* ---------- responsive ---------- */
@media(max-width:880px){
  .feat-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:34px}
  .keys-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .nav-links .hide-sm{display:none}
}
@media(max-width:560px){
  .feat-grid{grid-template-columns:1fr}
  .keys-grid{grid-template-columns:1fr}
  .block{padding:64px 0}
  .hero{padding:54px 0 24px}
  .install{font-size:13px;flex-wrap:wrap;gap:8px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important}
}