/* Estilos do frontend estático publicado no Cloudflare Pages. */
:root{
    --abyss:#0A2A33;
    --abyss-2:#0D333D;
    --panel:#123B47;
    --panel-2:#164654;
    --line:#1E5866;
    --cyan:#35C4D6;
    --cyan-dim:#2694A3;
    --amber:#F5A83C;
    --amber-dim:#C4842E;
    --foam:#EAF6F5;
    --mist:#87ADB3;
    --danger:#E1604C;
    --good:#5FCB8C;
    --radius:14px;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  body{
    background:
      radial-gradient(1100px 600px at 15% -10%, rgba(53,196,214,.10), transparent 60%),
      radial-gradient(900px 500px at 100% 0%, rgba(245,168,60,.08), transparent 55%),
      var(--abyss);
    color:var(--foam);
    font-family:'Inter', sans-serif;
    min-height:100vh;
    padding-bottom:60px;
  }
  ::selection{ background:var(--cyan); color:var(--abyss); }

  header{
    display:flex; align-items:center; justify-content:space-between;
    padding:22px clamp(18px,4vw,56px);
    border-bottom:1px solid var(--line);
    position:sticky; top:0; z-index:20;
    background:rgba(10,42,51,.85);
    backdrop-filter:blur(10px);
  }
  .brand{ display:flex; align-items:center; gap:12px; }
  .brand svg{ width:34px; height:34px; }
  .brand h1{
    font-family:'Space Grotesk', sans-serif;
    font-size:20px; letter-spacing:.02em; font-weight:700;
  }
  .brand span{ color:var(--cyan); }
  .brand small{ display:block; font-size:11px; color:var(--mist); font-weight:500; letter-spacing:.08em; text-transform:uppercase; margin-top:1px;}

  .header-right{ display:flex; align-items:center; gap:14px; }
  .mode-switch{
    display:flex; background:var(--panel); border:1px solid var(--line);
    border-radius:999px; padding:3px; font-family:'JetBrains Mono',monospace; font-size:11px;
  }
  .mode-switch button{
    border:none; background:transparent; color:var(--mist); padding:7px 14px;
    border-radius:999px; cursor:pointer; font-family:inherit; font-weight:500; letter-spacing:.03em;
    transition:.2s;
  }
  .mode-switch button.active{ background:var(--cyan); color:var(--abyss); font-weight:700; }

  .status-pill{
    display:flex; align-items:center; gap:7px; font-family:'JetBrains Mono',monospace;
    font-size:11px; color:var(--mist); padding:7px 12px; border:1px solid var(--line); border-radius:999px;
  }
  .dot{ width:7px; height:7px; border-radius:50%; background:var(--good); box-shadow:0 0 8px var(--good); animation:pulse 2s infinite; }
  @keyframes pulse{ 0%,100%{opacity:1;} 50%{opacity:.35;} }

  main{ max-width:1180px; margin:0 auto; padding:0 clamp(18px,4vw,56px); }

  /* ---------- HERO: schematic ---------- */
  .hero{ padding:44px 0 20px; }
  .hero-head{ margin-bottom:22px; }
  .eyebrow{
    font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--amber);
    letter-spacing:.12em; text-transform:uppercase; margin-bottom:10px; display:block;
  }
  .hero h2{
    font-family:'Space Grotesk',sans-serif; font-size:clamp(26px,4vw,38px); font-weight:600;
    max-width:680px; line-height:1.15; color:var(--foam);
  }
  .hero p{ color:var(--mist); max-width:560px; margin-top:12px; font-size:15px; line-height:1.55; }

  .schematic-wrap{
    background:linear-gradient(180deg, var(--panel-2), var(--panel));
    border:1px solid var(--line); border-radius:20px; padding:18px;
    overflow-x:auto;
  }
  .schematic-wrap svg{ width:100%; min-width:640px; height:auto; display:block; }

  .flow{ stroke-dasharray:6 8; animation:flow 1.4s linear infinite; }
  .flow.slow{ animation-duration:2.6s; }
  .flow.paused{ animation-play-state:paused; opacity:.25; }
  @keyframes flow{ to{ stroke-dashoffset:-56; } }

  .node-label{ font-family:'JetBrains Mono',monospace; font-size:10.5px; fill:var(--mist); letter-spacing:.03em; }
  .node-value{ font-family:'JetBrains Mono',monospace; font-size:13px; fill:var(--foam); font-weight:700; }
  .sun-ray{ transform-origin:center; animation:spin 18s linear infinite; }
  @keyframes spin{ to{ transform:rotate(360deg); } }

  /* ---------- STAT CARDS ---------- */
  .grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:26px; }
  @media (max-width:820px){ .grid{ grid-template-columns:1fr; } }

  .card{
    background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
    padding:20px 20px 18px;
    position:relative; overflow:hidden;
  }
  .card::before{
    content:''; position:absolute; top:0; left:0; right:0; height:2px;
    background:var(--card-accent, var(--cyan));
  }
  .card-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; }
  .card-title{ font-size:12px; color:var(--mist); text-transform:uppercase; letter-spacing:.09em; font-weight:600; }
  .card-icon{ width:20px; height:20px; opacity:.8; }

  .big-num{ font-family:'JetBrains Mono',monospace; font-size:34px; font-weight:700; line-height:1; display:flex; align-items:baseline; gap:4px; }
  .big-num small{ font-size:14px; color:var(--mist); font-weight:500; }
  .sub-row{ display:flex; gap:16px; margin-top:12px; font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--mist); }
  .sub-row b{ color:var(--foam); font-weight:600; }

  .bar-track{ height:8px; border-radius:999px; background:var(--abyss-2); margin-top:14px; overflow:hidden; }
  .bar-fill{ height:100%; border-radius:999px; background:linear-gradient(90deg, var(--cyan-dim), var(--cyan)); transition:width .6s ease; }
  .bar-fill.amber{ background:linear-gradient(90deg, var(--amber-dim), var(--amber)); }
  .bar-fill.good{ background:linear-gradient(90deg, #3f9e6b, var(--good)); }

  .tank-mini{ width:46px; height:56px; }

  /* ---------- CONSOLE (controls) ---------- */
  .console{
    margin-top:30px; background:repeating-linear-gradient(135deg, var(--panel), var(--panel) 10px, var(--panel-2) 10px, var(--panel-2) 11px);
    border:1px dashed var(--line); border-radius:var(--radius); padding:24px;
  }
  .console-inner{ background:var(--abyss-2); border:1px solid var(--line); border-radius:calc(var(--radius) - 4px); padding:24px; }
  .console-head{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; margin-bottom:20px; }
  .console-head h3{ font-family:'Space Grotesk',sans-serif; font-size:17px; font-weight:600; }
  .console-head .tag{ font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--mist); border:1px solid var(--line); padding:4px 10px; border-radius:999px; }

  .console-grid{ display:grid; grid-template-columns:1.1fr 1fr; gap:26px; }
  @media (max-width:900px){ .console-grid{ grid-template-columns:1fr; } }

  .row{ display:flex; align-items:center; justify-content:space-between; padding:14px 0; border-bottom:1px solid var(--line); }
  .row:last-child{ border-bottom:none; }
  .row-label{ font-size:14px; font-weight:500; }
  .row-desc{ font-size:12px; color:var(--mist); margin-top:3px; }

  .toggle{ width:50px; height:28px; border-radius:999px; background:var(--panel); border:1px solid var(--line); position:relative; cursor:pointer; flex-shrink:0; transition:.2s; }
  .toggle::after{ content:''; position:absolute; top:2px; left:2px; width:22px; height:22px; border-radius:50%; background:var(--mist); transition:.25s; }
  .toggle.on{ background:rgba(53,196,214,.25); border-color:var(--cyan); }
  .toggle.on::after{ transform:translateX(22px); background:var(--cyan); }
  .toggle.on.amber{ background:rgba(245,168,60,.25); border-color:var(--amber); }
  .toggle.on.amber::after{ background:var(--amber); }

  label.field-label{ font-size:12px; color:var(--mist); text-transform:uppercase; letter-spacing:.06em; font-weight:600; display:block; margin-bottom:8px; }
  input[type="datetime-local"]{
    width:100%; background:var(--panel); border:1px solid var(--line); color:var(--foam);
    padding:11px 12px; border-radius:8px; font-family:'JetBrains Mono',monospace; font-size:13px;
    color-scheme:dark;
  }
  .schedule-row{ margin-bottom:16px; }
  .btn{
    width:100%; padding:12px; border-radius:8px; border:none; font-family:'Inter',sans-serif; font-weight:600;
    font-size:14px; cursor:pointer; transition:.2s; background:var(--cyan); color:var(--abyss);
  }
  .btn:hover{ filter:brightness(1.08); }
  .btn.ghost{ background:transparent; border:1px solid var(--line); color:var(--foam); }
  .schedule-status{ margin-top:12px; font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--good); min-height:16px; }

  .manual-box{ background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:14px 16px; margin-bottom:18px; display:none; }
  .manual-box.show{ display:block; }
  .manual-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
  .manual-head .row-label{ font-size:13px; }
  input[type="range"]{
    -webkit-appearance:none; width:100%; height:6px; border-radius:999px;
    background:var(--abyss-2); outline:none; margin-top:6px;
  }
  input[type="range"]::-webkit-slider-thumb{
    -webkit-appearance:none; width:18px; height:18px; border-radius:50%;
    background:var(--cyan); cursor:pointer; border:2px solid var(--foam);
  }
  input[type="range"]::-moz-range-thumb{
    width:18px; height:18px; border-radius:50%; background:var(--cyan); cursor:pointer; border:2px solid var(--foam);
  }
  .manual-value{ font-family:'JetBrains Mono',monospace; font-size:13px; color:var(--cyan); font-weight:700; min-width:42px; text-align:right; }
  .toggle.small{ width:38px; height:22px; }
  .toggle.small::after{ width:16px; height:16px; }
  .toggle.small.on::after{ transform:translateX(16px); }

  footer{
    max-width:1180px; margin:34px auto 0; padding:16px clamp(18px,4vw,56px);
    display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px;
    font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--mist);
    border-top:1px solid var(--line);
  }
  a{ color:var(--cyan); text-decoration:none; }

  .config-note{
    font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--mist);
    background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:10px 14px; margin-top:10px;
    display:none;
  }
  .config-note.show{ display:block; }
  .config-note input{
    background:var(--abyss-2); border:1px solid var(--line); color:var(--foam); border-radius:6px;
    padding:6px 8px; font-family:inherit; font-size:11.5px; width:160px; margin-left:6px;
  }