:root {
  --ink:#f6fbff;
  --muted:#c8d7e6;
  --line:#284155;
  --panel:#0c141d;
  --panel-2:#111d29;
  --soft:#172635;
  --blue:#3f8cff;
  --blue-2:#0d356d;
  --cyan:#20e0bd;
  --amber:#ffbd3d;
  --orange:#ff7b3d;
  --red:#ff6b6b;
  --green:#35e2a2;
  --shadow:0 18px 46px rgba(0,0,0,.34);
  font-family:"Segoe UI","Noto Sans KR",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#050b10;letter-spacing:0}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
.topbar{position:sticky;top:0;z-index:20;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px clamp(18px,4vw,44px);background:rgba(6,12,18,.96);border-bottom:1px solid #1f3347;backdrop-filter:blur(14px)}
.brand{display:flex;align-items:center;gap:16px;font-weight:800;white-space:nowrap}.brand span{font-size:20px}.brand strong{font-size:15px;color:#e7f0fa}
.topnav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.topnav a{padding:10px 12px;border-bottom:2px solid transparent;color:#d5e1ee;font-size:15px}.topnav a:hover,.topnav a.active{color:#67a8ff;border-color:#2e7dff;background:#101d2a}
.eyebrow{margin:0 0 10px;color:#7cc7ff;font-size:13px;font-weight:900}
h1,h2,h3,p{margin-top:0}
h1{margin-bottom:14px;font-size:clamp(38px,5vw,62px);line-height:1.06}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.12}
p{line-height:1.62}
main{background:radial-gradient(circle at 16% 8%,rgba(31,104,191,.2),transparent 22%),linear-gradient(180deg,#060c12 0%,#081119 54%,#050b10 100%)}
.hmi-section{padding:18px clamp(18px,4vw,36px) clamp(28px,4.5vw,56px)}
.hmi-top-section{min-height:calc(100vh - 72px)}
.hmi-hero{display:grid;grid-template-columns:150px minmax(0,1fr);gap:26px;align-items:center;margin:0 0 22px;padding:34px clamp(24px,5vw,72px);border:1px solid #273f55;border-radius:8px;background:linear-gradient(135deg,rgba(13,26,39,.98),rgba(7,15,23,.94));box-shadow:var(--shadow)}
.hmi-hero-copy{min-width:0}.hmi-hero-copy p{max-width:880px;color:#d8e6f4;font-size:17px}
.cooker-mark{position:relative;width:132px;height:112px;color:#3484ff}.cooker-mark .bowl{position:absolute;left:14px;right:14px;bottom:18px;height:48px;border:8px solid currentColor;border-top:0;border-radius:0 0 46px 46px}.cooker-mark .bowl:before{content:"";position:absolute;left:-18px;right:-18px;top:-8px;height:8px;background:currentColor;border-radius:8px}.cooker-mark .bowl:after{content:"C";position:absolute;left:40px;top:2px;font-weight:900;color:currentColor}.steam{position:absolute;top:8px;width:12px;height:38px;border-left:6px solid currentColor;border-radius:50%}.steam-a{left:42px}.steam-b{left:66px}.steam-c{left:90px}
.hero-actions,.run-row,.decision-buttons,.recipe-pager,.stepper,.scenario-strip,.skin-strip,.mode-toggle{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
button,.primary-action,.secondary-action,.download-hero{min-height:48px;border:1px solid #314c65;border-radius:7px;padding:11px 16px;background:#111d29;color:#f5f9ff;cursor:pointer;font-weight:900}
button:hover,.secondary-action:hover{background:#17304a;border-color:#4a86d8;color:#fff}
button:disabled{background:#182331;color:#a8b8c8;border-color:#2c4052;cursor:not-allowed;opacity:1}
.primary-action,.start-button,.decision-buttons button:first-child{background:#0c5ed7;color:#fff;border-color:#4a96ff;box-shadow:0 0 0 1px rgba(74,150,255,.2) inset}
.secondary-action{background:#101b26;color:#eaf3ff;border-color:#314c65}
.download-hero{display:inline-flex;align-items:center;justify-content:center;min-height:62px;padding:16px 22px;background:#ffcf5a;border-color:#ffdb78;color:#10151c;font-size:18px;box-shadow:0 12px 28px rgba(0,0,0,.26)}
.scenario-strip,.skin-strip{margin:10px 0 0}
.scenario-strip button,.skin-strip button{background:#101b26;color:#eef7ff;border-color:#324f69}
.scenario-strip button.active,.scenario-strip button[aria-pressed="true"],.skin-strip button.active,.screen-tabs button.active,.mode-toggle button.active{background:#0d356d;color:#fff;border-color:#3284ff;box-shadow:0 0 0 1px rgba(63,140,255,.35) inset}
.skin-strip button[data-skin="contrast"].active{color:#8ec2ff}
.skin-strip:before{content:"";display:block;width:1px;height:36px;background:#365168;margin:0 6px}
.hmi-shell{display:grid;grid-template-columns:220px minmax(0,1fr);gap:18px;align-items:stretch}
.screen-tabs{display:grid;gap:10px;align-content:start}.screen-tabs button{width:100%;text-align:left;background:#0f1a24;color:#f3f8ff;border-color:#2f4960}.screen-tabs button:hover{background:#13283e}
.touch-panel{min-height:540px;padding:22px;border:1px solid #273f55;border-radius:8px;background:linear-gradient(145deg,#0c141d,#071018);box-shadow:var(--shadow)}
.panel-top{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:14px 18px;background:#101a25;border:1px solid #2b4358;border-radius:8px;margin-bottom:22px}
.panel-top strong{font-size:18px}.pending-state{color:var(--amber)}
.panel-label,.quick-stats span,.control-block span,.saved-box span,.field-label{display:block;color:#c8d7e6;font-size:13px;font-weight:900;margin-bottom:6px}
.hmi-screen{display:none}.hmi-screen.active{display:block}
.home-layout{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:26px}.home-copy p,.hmi-screen p,.protocol-note{color:#d4e1ef}
.quick-stats,.control-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.control-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:18px}
.quick-stats div,.control-block,.saved-box{padding:22px;background:#0f1a24;border:1px solid #2e465d;border-radius:8px;color:#f7fbff}
.quick-stats strong,.control-block strong{display:block;font-size:32px;line-height:1.15;color:#fff}
.quick-stats div:nth-child(4) strong{color:var(--amber)}
.stepper{margin-top:16px}.stepper button{min-width:76px}
.field-label{margin:16px 0 7px}
input[type="text"],input[type="time"]{width:min(440px,100%);min-height:46px;border:1px solid #38546e;border-radius:7px;padding:10px 12px;background:#0b141d;color:#fff}
input[type="range"]{width:min(440px,100%);accent-color:#3f8cff}
.check-row{display:flex;align-items:center;gap:10px;margin:12px 0;color:#f2f7ff}.check-row input{accent-color:#3f8cff}
.admin-grid{display:grid;gap:8px;max-width:560px}
.error-flow{margin-top:14px;padding:13px;border-radius:8px;background:#102d25;color:#55e2ac;font-weight:900;border:1px solid #236d57}.error-flow.alert{background:#3a1717;color:#ffc4c4;border-color:#b44545}
.log-panel{height:280px;overflow:auto;padding:12px;border-radius:8px;background:#05080b;color:#d5f4e5;border:1px solid #2b4358;font-family:Consolas,"Courier New",monospace;font-size:13px;line-height:1.55}.log-line{display:block;border-bottom:1px solid rgba(255,255,255,.09);padding:4px 0}.log-tx{color:#8ad4ff}.log-rx{color:#9df2b0}.log-ui{color:#ffd58f}.log-io{color:#ffb3d1}
.client-hero{display:grid;align-items:center;padding:clamp(42px,6vw,76px) clamp(22px,5vw,72px);background:#08111a;border-top:1px solid #203548}.hero-content{max-width:980px;color:#fff}.hero-copy{max-width:760px;color:#d7e5f4;font-size:18px}
.auto-demo-status{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;align-items:center;width:min(560px,100%);margin-top:18px;padding:14px;border:1px solid #35526b;border-radius:8px;background:#101b26}.auto-demo-status progress{grid-column:1/-1;width:100%;height:12px;accent-color:#3f8cff}
.timeline-section,.requirements-section{padding:clamp(34px,5vw,62px) clamp(22px,5vw,72px);background:#071018}.section-heading{max-width:880px;margin-bottom:20px}.section-heading p,.timeline p,.need-grid p{color:#cbd8e6}
.timeline,.need-grid{display:grid;gap:14px}.timeline{grid-template-columns:repeat(5,minmax(0,1fr))}.need-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
.timeline article,.need-grid article,.sub-panel{background:#0f1a24;border:1px solid #2d455b;border-radius:8px;padding:18px;color:#f6fbff}.timeline span{display:block;margin-bottom:8px;color:#7cc7ff;font-weight:900}
.decision-band{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px clamp(22px,5vw,72px);background:#0b141d;border-block:1px solid #263d52}.decision-summary{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.status-pill{display:inline-flex;align-items:center;min-height:30px;padding:5px 10px;border-radius:999px;background:#123b56;color:#9adaff;font-weight:900;font-size:13px}
.error-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,.72);z-index:40}.error-modal.open{display:flex}.error-modal [role="dialog"]{width:min(440px,100%);background:#0f1a24;color:#fff;border-radius:8px;padding:22px;border:1px solid #b44545;border-top:7px solid var(--red)}
.subpage{background:#050b10;color:#f6fbff}.subpage-main{padding:clamp(32px,6vw,72px) clamp(22px,5vw,72px);min-height:calc(100vh - 72px);background:linear-gradient(180deg,#071018,#050b10)}.sub-hero{max-width:900px;margin-bottom:22px}.sub-hero h1{color:#fff}.sub-hero .secondary-action{background:#101b26;color:#eaf3ff;border-color:#314c65}.sub-panel li+li{margin-top:10px}
@media (max-width:1180px){.timeline,.need-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hmi-shell,.home-layout,.control-grid{grid-template-columns:1fr}.screen-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.panel-top{grid-template-columns:1fr}.hmi-top-section{min-height:auto}}
@media (max-width:700px){.topbar{align-items:flex-start;flex-direction:column}.topnav{justify-content:flex-start}.hmi-section{padding:14px 14px 32px}.hmi-hero{grid-template-columns:1fr;padding:24px 18px}.cooker-mark{width:112px;height:96px}.screen-tabs,.timeline,.need-grid,.quick-stats{grid-template-columns:1fr}.decision-band{align-items:flex-start;flex-direction:column}.download-hero{width:100%;justify-content:center;text-align:center}.quick-stats strong,.control-block strong{font-size:25px}h1{font-size:36px}.skin-strip:before{display:none}}