:root{--bg:#081426;--panel:#12213a;--panel2:#172a48;--line:#314563;--text:#f4f7fb;--muted:#9fb0c8;--accent:#14d8bd;--danger:#ff5a67;--warning:#ffd24a;--ok:#39dd78}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top,#123555 0,#081426 42%,#050d1b 100%);font-family:Arial,Helvetica,sans-serif;color:var(--text);min-height:100vh}.hidden{display:none!important}
.login-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(520px,100%);background:rgba(10,24,43,.95);border:1px solid #334966;border-radius:28px;padding:38px;box-shadow:0 30px 80px #0008}.logo{width:116px;height:116px;border-radius:28px;display:grid;place-items:center;margin:auto;background:linear-gradient(135deg,#16c6dc,#12d275,#f6b41c);color:#031224;font-size:36px;font-weight:900}.login-card h1{text-align:center;font-size:36px;margin:26px 0 8px}.login-card p{text-align:center;color:var(--muted);font-size:20px;margin-bottom:30px}label{display:block;margin:14px 0 8px;color:#d6deeb;font-size:17px}input{width:100%;padding:16px 18px;border-radius:14px;border:1px solid #425978;background:#101d33;color:white;font-size:18px;outline:none}input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #14d8bd22}.primary-btn,.secondary-btn,.logout-btn,.print-btn,.nav-btn{border:0;border-radius:10px;cursor:pointer;font-weight:700}.primary-btn{width:100%;padding:16px;margin-top:22px;background:var(--accent);color:#062135;font-size:19px}.form-message{min-height:24px;text-align:center;margin-top:12px;color:var(--danger)}
.header{display:flex;justify-content:space-between;align-items:center;padding:18px 28px;background:linear-gradient(90deg,#2da8ec,#27d28a,#ffd166);color:#071427}.brand{font-size:34px;font-weight:900;letter-spacing:.5px}.subtitle{font-size:14px;font-weight:700;margin-top:3px}.header-actions{display:flex;gap:10px}.secondary-btn,.logout-btn{padding:11px 16px;background:#101d33;color:white}.menu{display:flex;justify-content:center;gap:10px;padding:14px;background:#0d1b31;position:sticky;top:0;z-index:20;flex-wrap:wrap}.nav-btn{padding:12px 18px;background:#203655;color:white}.nav-btn.active{background:var(--accent);color:#071427}.status-strip{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;padding:12px;border-top:1px solid #243956;border-bottom:1px solid #243956;background:#0a172b}.status-strip em{color:var(--ok);font-style:normal;font-weight:800}.page{display:none;padding:22px}.active-page{display:block}.tank-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;max-width:1500px;margin:auto}.tank-card{background:linear-gradient(145deg,#162a49,#101e35);border:1px solid #2a4264;border-radius:22px;padding:18px;box-shadow:0 16px 35px #0005;overflow:hidden}.tank-header{display:flex;justify-content:space-between;align-items:flex-start}.tank-header h2{font-size:27px;margin:0 0 10px}.date-time{text-align:right;color:#d8e1ed;font-size:14px}.tank-content{position:relative;min-height:250px;display:flex;align-items:center;justify-content:center}.tank-visual{position:relative;width:min(620px,100%);height:250px}.tank-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;z-index:3}.liquid-window{position:absolute;left:17.5%;top:18%;width:19%;height:49%;overflow:hidden;z-index:4;border-radius:0 0 12px 12px}.fuel-layer,.water-layer{position:absolute;left:0;width:100%;bottom:0}.fuel-layer{background:linear-gradient(#ffb13c,#f06a2a)}.water-layer{background:linear-gradient(#48cfff,#168be9);z-index:2}.capacity-value{position:absolute;left:48%;top:40%;z-index:4;text-align:center;color:#21cda8;font-size:32px;font-weight:900}.capacity-value small{display:block;color:#34445b;font-size:12px}.tank-info{position:absolute;right:2%;top:18%;z-index:5;background:#fff;color:#1a2636;border-radius:10px;padding:10px 12px;line-height:1.5;min-width:170px;font-size:14px;box-shadow:0 8px 25px #0004}.tank-info hr{border:0;border-top:1px solid #ccd4de}.percent-bar{height:10px;background:#30445f;border-radius:999px;overflow:hidden}.percent-fill{height:100%;background:linear-gradient(90deg,#13c96e,#53e69c)}.tank-footer{display:flex;justify-content:space-between;margin-top:10px;font-size:16px}.alarm-normal{color:var(--ok)}.alarm-warning{color:var(--danger)}.empty-state{grid-column:1/-1;text-align:center;background:#12213a;border:1px solid #2c4160;border-radius:18px;padding:45px;color:var(--muted)}
.page-toolbar{max-width:1450px;margin:0 auto 18px;display:flex;justify-content:space-between;align-items:center}.page-toolbar h2{font-size:30px;margin:0}.print-btn{padding:11px 18px;background:#25cc72;color:#071427}.dispenser-grid{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:30px;max-width:1400px;margin:30px auto}.nozzle{text-align:center;padding:18px;background:#10203a;border-radius:18px;border:1px solid #2a4264}.nozzle img{width:130px;max-width:100%;filter:drop-shadow(0 10px 10px #0008)}.nozzle h3{font-size:24px;margin:10px}.nozzle p{font-size:22px;font-weight:800}.tank-tabs{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin:12px auto 18px}.tank-tab{padding:11px 16px;border:0;border-radius:9px;background:#243b5e;color:white;font-weight:700;cursor:pointer}.tank-tab.active{background:var(--accent);color:#071427}.table-wrap{overflow:auto;max-width:1450px;margin:auto;border-radius:16px;border:1px solid #314563}.report-table{width:100%;border-collapse:collapse;background:#12213a;min-width:850px}.report-table th{padding:14px;background:#23b8e3;color:#061524}.monthly-table th{background:#f5b949}.alert-table th{background:#f06069;color:white}.report-table td{padding:12px;text-align:center;border-top:1px solid #30445f}.report-table tr:nth-child(even){background:#0d1a30}.status-ok{color:var(--ok);font-weight:800}.status-danger{color:var(--danger);font-weight:800}.modal{position:fixed;inset:0;background:#000a;z-index:100;display:grid;place-items:center;padding:20px}.modal-card{width:min(520px,100%);background:#12213a;border:1px solid #3b5476;border-radius:22px;padding:28px;position:relative}.modal-close{position:absolute;right:14px;top:10px;border:0;background:transparent;color:white;font-size:34px;cursor:pointer}
@media(max-width:900px){.tank-grid{grid-template-columns:1fr}.dispenser-grid{grid-template-columns:repeat(2,1fr)}.header{align-items:flex-start}.brand{font-size:26px}.tank-content{min-height:220px}.tank-info{font-size:12px;min-width:145px}.capacity-value{font-size:23px}.page{padding:12px}}
@media(max-width:560px){.login-card{padding:25px 20px}.header{padding:14px;flex-direction:column;gap:10px}.header-actions{align-self:flex-end}.menu{gap:6px}.nav-btn{font-size:12px;padding:10px}.status-strip{gap:10px;justify-content:flex-start;padding:10px 14px;font-size:12px}.tank-card{padding:12px}.tank-header h2{font-size:20px}.tank-visual{height:190px}.tank-info{right:0;top:10%;transform:scale(.86);transform-origin:right top}.dispenser-grid{grid-template-columns:repeat(2,1fr);gap:12px}.page-toolbar h2{font-size:21px}.print-btn{font-size:12px}}
@media print{.header-actions,.menu,.status-strip,.print-btn,.tank-tabs{display:none!important}.page{display:none!important}.page.active-page{display:block!important}body{background:white;color:black}.report-table{color:black;background:white}.report-table td{border:1px solid #777}}

/* FINAL LIQUID DISPLAY FIX */
.liquid-window{
    top:28% !important;
    z-index:6 !important;
}

.tank-visual img{
    z-index:3 !important;
}

.fuel-layer,
.water-layer{
    z-index:7 !important;
    display:block !important;
    visibility:visible !important;
}

/* FINAL LIQUID POSITION FIX */
.liquid-window{
    left:23% !important;
    top:28% !important;
    width:18% !important;
    height:49% !important;
    overflow:hidden !important;
    z-index:6 !important;
}

.tank-visual img{
    z-index:3 !important;
}

.fuel-layer,
.water-layer{
    z-index:7 !important;
    display:block !important;
    visibility:visible !important;
}

/* FINAL CORRECT LIQUID WINDOW */
.liquid-window{
    position:absolute !important;
    left:22% !important;
    top:28% !important;
    width:22% !important;
    height:49% !important;
    overflow:hidden !important;
    z-index:6 !important;
    border-radius:0 0 12px 12px !important;
}

.tank-visual img{
    z-index:3 !important;
}

.fuel-layer,
.water-layer{
    position:absolute !important:
    left:0 !important;
    bottom:0 !important:
    width:100% !important;
    z-index:7 !important;
    display:block !important;
    visibility:visible !important;
    transition:height 0.2s ease !important:
}

/* ===== FINAL RESPONSIVE TANK + LIQUID FIX ===== */

.tank-visual{
    position:relative !important;
    width:min(620px, 100%) !important;
    max-width:620px !important;
    height:auto !important;
    margin:0 auto !important;
    flex-shrink:1 !important;
}

.tank-visual > img{
    position:relative !important;
    display:block !important;
    width:100% !important;
    max-width:620px !important;
    height:auto !important;
    object-fit:contain !important;
    z-index:3 !important;
}

.liquid-window{
    position:absolute !important;
    left:22% !important;
    top:28% !important;
    width:22% !important;
    height:49% !important;
    overflow:hidden !important;
    z-index:6 !important;
    border-radius:0 0 12px 12px !important;
}

.fuel-layer,
.water-layer{
    position:absolute !important;
    left:0 !important;
    width:100% !important;
    z-index:7 !important;
    display:block !important;
    visibility:visible !important;
    transition:height 0.2s ease !important;
}


/* FINAL SAFE TANK FIX */

.tank-visual{
    position:relative !important;
}

.liquid-window{
    position:absolute !important;
    left:17% !important;
    top:28% !important;
    width:26% !important;
    height:49% !important;
    overflow:hidden !important;
    z-index:6 !important;
}

.water-layer{
    position:absolute !important;
    left:0 !important;
    bottom:0 !important;
    width:100% !important;
    z-index:7 !important;
}

.fuel-layer{
    position:absolute !important;
    left:0 !important;
    width:100% !important;
    z-index:8 !important;
}