/* Portafolio · OptiStock — mismo lenguaje visual que la app (oscuro, dorado, glass) */
:root {
  --bg: #0f0f0f;
  --bg2: #151515;
  --card: #1b1b1b;
  --card2: #242424;
  --line: #383838;
  --fg: #f4f1ea;
  --mut: #a2a2b0;
  --gold: #f6a700;
  --gold2: #ffc84a;
  --acc: #4a2f12;
  --can: #5a4208;
  --lis: #1f3a48;
  --soc: #2f4630;
  --ok: #6fcf8f;
  --bad: #ef7a7a;
  --r: 16px;
  --font: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 var(--font); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold2); }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); font-size: .88em; }
code { background: #ffffff10; padding: .1em .4em; border-radius: 6px; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.gold { color: var(--gold); }
.mut { color: var(--mut); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* partículas de fondo */
#bg { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* navegación */
.nav { position: fixed; top: 0; inset-inline: 0; z-index: 50; backdrop-filter: blur(16px) saturate(1.3); background: #0f0f0fb8; border-bottom: 1px solid #ffffff12; }
.nav .wrap { display: flex; align-items: center; gap: 18px; height: 60px; }
.brand { position: relative; z-index: 1; flex: none; padding-right: 10px; background: #0f0f0f; display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--fg); white-space: nowrap; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav ul { display: flex; gap: 2px; list-style: none; margin: 0 0 0 auto; padding: 0; overflow-x: auto; scrollbar-width: none; }
.nav ul::-webkit-scrollbar { display: none; }
.nav li a { display: block; padding: 8px 12px; border-radius: 10px; color: var(--mut); font-size: .9rem; white-space: nowrap; }
.nav li a:hover { color: var(--fg); background: #ffffff0d; }
.nav li a.on { color: var(--gold); background: #f6a70018; }
#progress { position: absolute; left: 0; bottom: -1px; height: 2px; width: 0; background: linear-gradient(90deg, var(--gold), var(--gold2)); }

/* hero */
.hero { position: relative; padding: 140px 0 80px; text-align: center; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% 0 auto; height: 520px; background: radial-gradient(60% 60% at 50% 30%, #f6a70026, transparent 70%); pointer-events: none; }
.hero .logo { width: 92px; height: 92px; margin: 0 auto 22px; border-radius: 24px; box-shadow: 0 0 0 1px #ffffff18, 0 20px 60px #f6a70033; animation: float 5s ease-in-out infinite; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 800; }
.hero h1 span { background: linear-gradient(100deg, var(--gold2), var(--gold) 50%, #ff8c00); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { max-width: 720px; margin: 0 auto 28px; color: var(--mut); font-size: clamp(1rem, 2.2vw, 1.2rem); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 12px; font-weight: 600; border: 1px solid var(--line); background: #ffffff0a; color: var(--fg); cursor: pointer; font: inherit; font-weight: 600; transition: .2s; }
.btn:hover { transform: translateY(-2px); border-color: var(--gold); color: var(--fg); }
.btn.pri { background: linear-gradient(135deg, var(--gold2), var(--gold)); color: #1a1200; border-color: transparent; box-shadow: 0 10px 30px #f6a70033; }
.btn.pri:hover { color: #1a1200; box-shadow: 0 14px 40px #f6a70055; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-top: 56px; }
.stat { padding: 18px 12px; border-radius: var(--r); background: #ffffff08; border: 1px solid #ffffff14; backdrop-filter: blur(8px); }
.stat b { display: block; font-size: 2rem; color: var(--gold); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat span { color: var(--mut); font-size: .85rem; }
@keyframes float { 50% { transform: translateY(-8px); } }

/* secciones */
section { padding: 84px 0; position: relative; }
section.alt { background: linear-gradient(180deg, transparent, #ffffff05 12%, #ffffff05 88%, transparent); }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); margin-bottom: 10px; }
.sec-h { max-width: 760px; margin-bottom: 36px; }
.sec-h h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.sec-h p { color: var(--mut); font-size: 1.05rem; }

/* fases */
.phases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0 0 44px; counter-reset: ph; }
.phase { position: relative; padding: 18px 16px 18px 56px; border: 1px solid var(--line); background: var(--card); cursor: pointer; transition: .25s; counter-increment: ph; text-align: left; color: inherit; font: inherit; }
.phase:first-child { border-radius: var(--r) 0 0 var(--r); }
.phase:last-child { border-radius: 0 var(--r) var(--r) 0; }
.phase::before { content: counter(ph); position: absolute; left: 16px; top: 50%; translate: 0 -50%; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: .85rem; background: #ffffff10; color: var(--mut); }
.phase b { display: block; }
.phase small { color: var(--mut); }
.phase:hover, .phase.on { background: linear-gradient(135deg, #f6a7001f, var(--card)); border-color: var(--gold); }
.phase.on::before { background: var(--gold); color: #1a1200; }

/* tarjetas */
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; position: relative; transition: transform .25s, border-color .25s, box-shadow .25s; }
.card.hov:hover { transform: translateY(-4px); border-color: #f6a70088; box-shadow: 0 18px 50px #00000066, 0 0 0 1px #f6a70022; }
.card h3 { font-size: 1.1rem; display: flex; gap: 10px; align-items: center; }
.card .ico { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: #f6a7001c; color: var(--gold); flex: none; }
.card p:last-child { margin-bottom: 0; }
.tag { display: inline-block; font-size: .72rem; font-weight: 700; padding: 2px 9px; border-radius: 99px; background: #ffffff10; color: var(--mut); letter-spacing: .02em; }
.tag.g { background: #f6a7001f; color: var(--gold); }
.tag.ok { background: #6fcf8f1f; color: var(--ok); }
.tag.bad { background: #ef7a7a1f; color: var(--bad); }
ul.ck { list-style: none; padding: 0; margin: 0; }
ul.ck li { padding: 6px 0 6px 26px; position: relative; }
ul.ck li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); font-weight: 800; }
ul.x li::before { content: "✕"; color: var(--bad); }
.story { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.story .card h4 { color: var(--gold); font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; }

/* filtros / pestañas */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.chip { padding: 8px 14px; border-radius: 99px; border: 1px solid var(--line); background: #ffffff08; color: var(--mut); cursor: pointer; font: inherit; font-size: .88rem; transition: .2s; }
.chip:hover { color: var(--fg); border-color: #f6a70088; }
.chip.on { background: var(--gold); color: #1a1200; border-color: var(--gold); font-weight: 700; }

/* tabla de requisitos */
.tbl-w { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid #ffffff0d; vertical-align: top; }
th { color: var(--mut); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; background: #ffffff06; position: sticky; top: 0; }
tr:last-child td { border: 0; }
tbody tr:hover { background: #f6a7000c; }
td.id { font-family: var(--mono); color: var(--gold); white-space: nowrap; }

/* casos de uso */
.uc { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 14px; }
.uc .card { padding: 16px 18px; transition: opacity .25s, transform .25s; }
.uc .card.off { opacity: .18; transform: scale(.97); pointer-events: none; }
.uc h4 { margin: 0 0 6px; font-size: .98rem; }
.uc p { color: var(--mut); font-size: .88rem; margin: 0 0 8px; }
.uc .by { display: flex; gap: 6px; flex-wrap: wrap; }
.uc .code { font-family: var(--mono); font-size: .72rem; color: var(--gold); }

/* alcance */
.scope { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 760px) { .scope, .phases { grid-template-columns: 1fr; } .phase:first-child { border-radius: var(--r) var(--r) 0 0; } .phase:last-child { border-radius: 0 0 var(--r) var(--r); } }

/* diagramas */
.dgw { position: relative; border: 1px solid var(--line); border-radius: var(--r); background: #0a0a0a; overflow: hidden; }
.dgw .bar { display: flex; gap: 8px; align-items: center; padding: 10px 12px; border-bottom: 1px solid var(--line); background: #ffffff05; flex-wrap: wrap; }
.dgw .bar .mut { margin-right: auto; font-size: .85rem; }
.dgw .bar button { padding: 6px 12px; border-radius: 9px; border: 1px solid var(--line); background: #ffffff0a; color: var(--fg); cursor: pointer; font: inherit; font-size: .85rem; }
.dgw .bar button:hover { border-color: var(--gold); }
.dgv { overflow: auto; max-height: 78vh; cursor: grab; -webkit-overflow-scrolling: touch; }
.dgv.drag { cursor: grabbing; user-select: none; }
.dgv svg { display: block; width: 100%; min-width: 760px; height: auto; transform-origin: 0 0; }
.dg { font-family: var(--font); }
.dg .panel rect { fill: #ffffff05; stroke: #ffffff12; stroke-dasharray: 5 6; }
.dg .panel text { fill: #ffffff55; font-size: 14px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.dg .panel.acc rect { fill: #4a2f1222; } .dg .panel.can rect { fill: #5a420822; } .dg .panel.lis rect { fill: #1f3a4822; } .dg .panel.soc rect { fill: #2f463022; }
.dg .bg { fill: #1e1e1e; stroke: #3a3a44; transition: stroke .2s; }
.dg .hd { fill: #33333c; }
.dg .acc .hd { fill: #4a2f12; } .dg .can .hd { fill: #5a4208; } .dg .lis .hd { fill: #1f3a48; } .dg .soc .hd { fill: #2f4630; }
.dg .ttl { fill: var(--fg); font-weight: 700; font-size: 15px; }
.dg .stereo { fill: #ffffff80; font-size: 10px; }
.dg .nm { fill: #e9e6de; font-family: var(--mono); font-size: 12.5px; }
.dg .ty { fill: #8c8c9a; font-family: var(--mono); font-size: 11.5px; }
.dg .fl { fill: var(--gold); font-family: var(--mono); font-size: 10px; font-weight: 700; }
.dg .zebra { fill: #ffffff08; }
.dg .rel .ln { fill: none; stroke: #7d7d8c; stroke-width: 1.4; transition: .2s; }
.dg .rel .hit { fill: none; stroke: transparent; stroke-width: 14; }
.dg .rel .lbl { fill: #9fb4ff; font-size: 11px; }
.dg .rel .mult { fill: var(--gold); font-size: 11px; font-weight: 700; }
.dg .mk-open { fill: none; stroke: #7d7d8c; stroke-width: 1.4; }
.dg .mk-dia { fill: #1e1e1e; stroke: #7d7d8c; stroke-width: 1.2; }
.dg .tbl { cursor: pointer; transition: opacity .2s; }
.dg.hl .tbl, .dg.hl .rel { opacity: .16; }
.dg.hl .tbl.on, .dg.hl .rel.on { opacity: 1; }
.dg.hl .tbl.on .bg { stroke: var(--gold); }
.dg.hl .rel.on .ln { stroke: var(--gold); stroke-width: 2.2; }
.dg.hl .rel.on .mk-open { stroke: var(--gold); } .dg.hl .rel.on .mk-dia { stroke: var(--gold); }
.dg .rel .ln { stroke-dasharray: 2400; stroke-dashoffset: 2400; }
.dg.draw .rel .ln { animation: dash 1.6s ease forwards; }
@keyframes dash { to { stroke-dashoffset: 0; } }
.legend { display: flex; gap: 14px; flex-wrap: wrap; padding: 10px 14px; border-top: 1px solid var(--line); font-size: .8rem; color: var(--mut); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; }

/* diagramas de proceso (carriles) */
.flowsel { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.flow { background: #0a0a0a; border: 1px solid var(--line); border-radius: var(--r); padding: 14px; overflow-x: auto; }
.flow svg { min-width: 820px; width: 100%; height: auto; display: block; }
.flow .lane { fill: #ffffff05; stroke: #ffffff10; }
.flow .lane-t { fill: var(--mut); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.flow .st rect { fill: #242424; stroke: #4a4a58; transition: .2s; }
.flow .st text { fill: var(--fg); font-size: 12.5px; }
.flow .st.dec polygon { fill: #5a4208; stroke: var(--gold); }
.flow .st.ev ellipse { fill: #1f3a48; stroke: #6fb7d8; }
.flow .st:hover rect { stroke: var(--gold); }
.flow .ed { fill: none; stroke: #8c8c9a; stroke-width: 1.5; marker-end: url(#fa); }
.flow .ed.run { stroke: var(--gold); stroke-dasharray: 6 6; animation: march .9s linear infinite; }
.flow .edl { fill: var(--gold); font-size: 11px; font-weight: 700; }
@keyframes march { to { stroke-dashoffset: -12; } }

/* arquitectura */
.arch { background: #0a0a0a; border: 1px solid var(--line); border-radius: var(--r); padding: 14px; overflow-x: auto; }
.arch svg { min-width: 860px; width: 100%; height: auto; display: block; }
.arch .box rect { fill: #1e1e1e; stroke: #3a3a44; transition: .2s; }
.arch .box text { fill: var(--fg); font-size: 13px; }
.arch .box .sub { fill: var(--mut); font-size: 11px; }
.arch .box:hover rect, .arch .box.on rect { stroke: var(--gold); fill: #2a2418; }
.arch .zone { fill: #ffffff04; stroke: #ffffff14; stroke-dasharray: 5 6; }
.arch .zt { fill: #ffffff55; font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.arch .ln { fill: none; stroke: #7d7d8c; stroke-width: 1.5; }
.arch .ln.fl { stroke: var(--gold); stroke-dasharray: 6 8; animation: march 1s linear infinite; }
.arch .pk { fill: var(--gold); }
.archinfo { margin-top: 14px; min-height: 76px; padding: 16px 18px; border-radius: var(--r); border: 1px dashed #f6a70066; background: #f6a7000d; }

/* decisiones */
.adr { border: 1px solid var(--line); border-radius: var(--r); background: var(--card); margin-bottom: 12px; overflow: hidden; }
.adr > button { all: unset; box-sizing: border-box; width: 100%; padding: 16px 20px; display: flex; gap: 14px; align-items: center; cursor: pointer; }
.adr > button:hover { background: #ffffff06; }
.adr .n { font-family: var(--mono); color: var(--gold); font-weight: 700; }
.adr .t { font-weight: 600; flex: 1; }
.adr .chev { transition: .25s; color: var(--mut); }
.adr.open .chev { rotate: 180deg; color: var(--gold); }
.adr .body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s ease; }
.adr.open .body { grid-template-rows: 1fr; }
.adr .body > div { overflow: hidden; }
.adr .in { padding: 0 20px 18px; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.adr .in h5 { margin: 0 0 4px; color: var(--gold); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.adr .in p { margin: 0; color: #d6d3ca; font-size: .93rem; }

/* problemas */
.prob { display: grid; grid-template-columns: 1fr 44px 1fr; gap: 0; align-items: stretch; margin-bottom: 14px; }
.prob .p, .prob .s { padding: 18px 20px; border: 1px solid var(--line); background: var(--card); }
.prob .p { border-radius: var(--r) 0 0 var(--r); border-left: 3px solid var(--bad); }
.prob .s { border-radius: 0 var(--r) var(--r) 0; border-left: 3px solid var(--ok); }
.prob .ar { display: grid; place-items: center; color: var(--gold); background: var(--card); border-block: 1px solid var(--line); font-size: 1.3rem; }
.prob h4 { margin: 0 0 6px; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.prob .p h4 { color: var(--bad); } .prob .s h4 { color: var(--ok); }
.prob p { margin: 0; font-size: .93rem; }
.prob[hidden] { display: none; }
@media (max-width: 700px) { .prob { grid-template-columns: 1fr; } .prob .p { border-radius: var(--r) var(--r) 0 0; } .prob .s { border-radius: 0 0 var(--r) var(--r); } .prob .ar { rotate: 90deg; padding: 4px; border: 0; } }

/* estructura de código */
.tree { font-family: var(--mono); font-size: .86rem; background: #0a0a0a; border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; overflow-x: auto; line-height: 1.8; }
.tree .d { color: var(--gold); } .tree .c { color: #7d7d8c; }
.tree details { margin-left: 18px; } .tree summary { cursor: pointer; list-style: none; } .tree summary::before { content: "▸ "; color: var(--mut); } .tree details[open] > summary::before { content: "▾ "; }
.tree summary::-webkit-details-marker { display: none; }
.tree .f { margin-left: 18px; display: block; }

/* tecnologías */
.tech { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 14px; }
.tech .card { padding: 16px 18px; }
.tech h4 { color: var(--gold); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pills span { padding: 4px 10px; border-radius: 99px; background: #ffffff0c; border: 1px solid #ffffff12; font-size: .82rem; }

/* módulos */
.mods { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 20px; }
.mod { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; transition: .25s; cursor: pointer; display: flex; flex-direction: column; }
.mod:hover { transform: translateY(-5px); border-color: #f6a70088; box-shadow: 0 20px 50px #000a; }
.mod .im { aspect-ratio: 16 / 10; overflow: hidden; background: #0a0a0a; border-bottom: 1px solid var(--line); }
.mod .im img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .6s; }
.mod:hover .im img { transform: scale(1.05); }
.mod .tx { padding: 16px 18px 18px; }
.mod h3 { font-size: 1.05rem; margin-bottom: 6px; }
.mod p { color: var(--mut); font-size: .9rem; margin: 0 0 10px; }
.phones { display: flex; gap: 18px; overflow-x: auto; padding: 8px 4px 18px; scroll-snap-type: x mandatory; }
.phones figure { margin: 0; flex: none; width: 200px; scroll-snap-align: start; text-align: center; }
.phones img { border-radius: 24px; border: 6px solid #2a2a32; box-shadow: 0 20px 50px #0009; }
.phones figcaption { margin-top: 10px; color: var(--mut); font-size: .85rem; }

/* línea de tiempo */
.time { position: relative; padding-left: 28px; }
.time::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--gold), #ffffff14); }
.time .it { position: relative; padding: 0 0 26px; }
.time .it::before { content: ""; position: absolute; left: -27px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px #f6a70033; }
.time h4 { margin-bottom: 2px; } .time p { color: var(--mut); margin: 0; font-size: .93rem; }

/* lightbox */
#lb { position: fixed; inset: 0; z-index: 100; background: #000d; backdrop-filter: blur(6px); display: none; align-items: center; justify-content: center; padding: 20px; }
#lb.open { display: flex; }
#lb img { max-height: 90vh; max-width: 100%; border-radius: 12px; box-shadow: 0 30px 80px #000; }
#lb button { position: absolute; top: 16px; right: 16px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid #ffffff33; background: #ffffff14; color: #fff; font-size: 1.3rem; cursor: pointer; }

/* contacto */
.contact { text-align: center; }
footer { padding: 36px 0 60px; text-align: center; color: var(--mut); font-size: .85rem; border-top: 1px solid #ffffff10; }

/* revelado al scroll */
.rv { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } .rv { opacity: 1; transform: none; } .dg .rel .ln { stroke-dashoffset: 0; } }
@media (max-width: 640px) { section { padding: 60px 0; } .hero { padding-top: 110px; } .brand span { display: none; } .nav .wrap { gap: 8px; } }

/* propio de OptiStock */
.hero::after { content: ""; position: absolute; left: 0; right: 0; top: 60px; height: 3px; background: linear-gradient(90deg, transparent, var(--gold), transparent); opacity: .4; }
.formula { margin-top: 12px; padding: 14px 16px; border-radius: 12px; background: #0a0a0a; border: 1px solid var(--line); font-family: var(--mono); color: var(--gold2); line-height: 1.9; }
.calc .fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr)); gap: 12px; }
.calc label { display: grid; gap: 4px; font-size: .85rem; color: var(--mut); }
.calc input { width: 100%; padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line); background: #0a0a0a; color: var(--fg); font: inherit; }
.calc input:focus { outline: 2px solid var(--gold); outline-offset: 1px; }
.calc .out { margin-top: 18px; }
[hidden] { display: none !important; }
.hero .logo { border-radius: 50%; }