:root { --ink:#132332; --muted:#536577; --green:#15953b; --green-dark:#087a2c; --green-soft:#eef9f0; --blue:#1577c8; --line:#e4e9ed; --surface:#fff; --background:#f6f8f9; font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:var(--ink); background:var(--background); }
* { box-sizing:border-box; }
body { margin:0; min-width:320px; background:radial-gradient(circle at 50% -10%,#fff 0,var(--background) 54rem); }
button,input { font:inherit; } button { cursor:pointer; }
.icon { width:1.2em; height:1.2em; display:block; flex:none; }
.app-shell { width:min(100% - 2rem,31rem); margin:0 auto; padding:2rem 0 2.5rem; }
.app-header { display:flex; align-items:center; gap:.75rem; margin-bottom:1.75rem; }
.brand-mark { color:#1aa53e; width:2.5rem; height:2.5rem; display:grid; place-items:center; }
.brand-mark .icon { width:2.35rem; height:2.35rem; }
.app-header h1 { margin:0; font-size:1.45rem; letter-spacing:-.04em; } .app-header p { margin:.18rem 0 0; color:var(--muted); font-size:.9rem; }
.icon-button { margin-left:auto; border:0; background:transparent; color:var(--ink); font-size:1.6rem; padding:.4rem; }
.icon-button .icon { width:1.5rem; height:1.5rem; }
.recommendation-card { display:grid; grid-template-columns:auto 1fr auto; gap:.9rem; align-items:center; padding:1.35rem; color:#fff; border-radius:1.25rem; background:linear-gradient(135deg,#26a92a,#068431); box-shadow:0 .7rem 1.6rem rgba(0,117,37,.2); }
.recommendation-card[data-state="gasoline"] { background:linear-gradient(135deg,#2188d0,#1162ad); } .recommendation-card[data-state="equivalent"],.recommendation-card[data-state="incomplete"] { background:linear-gradient(135deg,#596a79,#334655); }
.recommendation-icon { width:3.7rem; height:3.7rem; display:grid; place-items:center; border:3px solid rgba(194,255,113,.72); border-radius:50%; }
.recommendation-icon .icon { width:2.1rem; height:2.1rem; }
.recommendation-copy h2 { margin:0; text-transform:uppercase; font-size:clamp(1.35rem,6vw,2rem); line-height:1.05; letter-spacing:.02em; } .recommendation-copy p { margin:.35rem 0 0; font-size:.9rem; }
.recommendation-check { color:rgba(255,255,255,.65); } .recommendation-check .icon { width:2.5rem; height:2.5rem; } .recommendation-message { grid-column:1/-1; margin:.2rem 0 0; padding:.75rem; text-align:center; color:var(--green-dark); background:#fff; border-radius:.8rem; font-weight:700; }
.calculator-form { margin-top:1rem; } .price-grid { display:grid; gap:.8rem; }
.price-field,.metrics-card,.threshold-card,.history-card { display:block; background:var(--surface); border:1px solid rgba(220,227,231,.8); border-radius:1rem; box-shadow:0 .25rem 1rem rgba(27,44,54,.06); }
.price-field { padding:1rem 1.15rem; } .field-label { display:flex; align-items:center; gap:.55rem; color:var(--muted); font-size:.82rem; } .fuel-icon { display:grid; place-items:center; width:1.75rem; height:1.75rem; border-radius:50%; background:var(--green-soft); color:var(--green-dark); } .fuel-icon .icon { width:1.1rem; height:1.1rem; } .gasoline-field .fuel-icon { background:#edf6ff; color:var(--blue); }
.currency-input { display:flex; align-items:baseline; gap:.5rem; margin:.25rem 0 0 2.3rem; font-size:1.15rem; } .currency-input input { width:100%; min-width:0; border:0; outline:0; color:var(--ink); font-size:1.9rem; font-weight:600; } .currency-input input::placeholder { color:#aab6bf; } .currency-input input:focus-visible { box-shadow:0 2px 0 var(--green); }
.metrics-card { display:grid; grid-template-columns:1fr 1fr; margin-top:1rem; padding:1.2rem .8rem; } .metric { display:grid; justify-items:center; gap:.25rem; padding:0 .7rem; text-align:center; } .metric+.metric { border-left:1px solid var(--line); } .metric span { font-size:.75rem; line-height:1.4; } .metric strong { color:var(--green-dark); font-size:1.65rem; letter-spacing:-.03em; } .metric small { font-size:.8rem; } .empty-state { margin:1rem 0 0; color:var(--muted); text-align:center; font-size:.84rem; }
.threshold-card { margin-top:1rem; padding:1.2rem 1.25rem; } .section-heading { display:flex; justify-content:space-between; align-items:center; gap:1rem; } .section-heading h2 { margin:0; font-size:.95rem; } .threshold-current { color:var(--green-dark); font-size:1.6rem; font-weight:700; } .threshold-slider { width:100%; margin:1.1rem 0 .35rem; accent-color:var(--green); } .slider-labels { display:flex; justify-content:space-between; color:var(--muted); font-size:.8rem; } .slider-labels strong { color:var(--green-dark); } .threshold-card>p { margin:1rem 0 0; color:var(--muted); text-align:center; font-size:.82rem; }
.consumption-calculator { margin:1.15rem 0 0; padding:1rem 0 0; border:0; border-top:1px solid var(--line); } .consumption-calculator legend { padding:0; color:var(--ink); font-size:.84rem; font-weight:700; } .consumption-grid { display:grid; grid-template-columns:1fr 1fr; gap:.7rem; margin-top:.7rem; } .consumption-grid label { display:grid; gap:.3rem; color:var(--muted); font-size:.75rem; } .consumption-grid input { width:100%; min-height:2.7rem; padding:.45rem .65rem; color:var(--ink); background:#fbfcfc; border:1px solid var(--line); border-radius:.55rem; outline:0; } .consumption-grid input:focus-visible { border-color:var(--green); box-shadow:0 0 0 3px #d9f4df; } .consumption-message { min-height:1.2rem; margin:.7rem 0 0; color:var(--muted); text-align:left; font-size:.75rem; }
.actions { display:grid; grid-template-columns:1.25fr 1fr; gap:.8rem; margin-top:1rem; } .button { min-height:3.2rem; display:flex; align-items:center; justify-content:center; gap:.45rem; border-radius:.7rem; font-weight:700; text-transform:uppercase; letter-spacing:.03em; } .button .icon { width:1.15rem; height:1.15rem; } .button-primary { color:var(--green-dark); background:#fff; border:1px solid #75bb82; } .button-secondary { color:var(--ink); background:#fff; border:1px solid var(--line); } .button:focus-visible,.icon-button:focus-visible,.threshold-slider:focus-visible { outline:3px solid #9de7ad; outline-offset:3px; }
.history-card { margin-top:.8rem; padding:.8rem 1rem; } .history-card ul { list-style:none; margin:0; padding:0; } .history-card li { display:flex; justify-content:space-between; gap:1rem; padding:.7rem 0; border-bottom:1px solid var(--line); font-size:.8rem; } .history-card li:last-child { border:0; } .history-card strong { color:var(--green-dark); } .history-empty { color:var(--muted); }
.offline-card { display:grid; grid-template-columns:repeat(3,1fr); gap:.5rem; margin-top:1.2rem; padding:1rem .65rem; color:var(--green-dark); background:var(--green-soft); border:1px solid #dfede1; border-radius:.8rem; } .offline-card span,.install-card { display:flex; align-items:center; justify-content:center; gap:.4rem; text-align:left; } .offline-card .icon { width:1.35rem; height:1.35rem; } .offline-card span+span,.install-card { border-left:1px solid #d5e8d8; } .install-card { width:100%; padding:0; color:inherit; background:transparent; border-top:0; border-right:0; border-bottom:0; cursor:pointer; } .install-card:focus-visible { outline:3px solid #9de7ad; outline-offset:3px; border-radius:.3rem; } .offline-card b { color:var(--ink); font-size:.7rem; font-weight:500; line-height:1.35; } .install-message { grid-column:1/-1; margin:.25rem 0 0; color:var(--muted); text-align:center; font-size:.75rem; } .privacy-note { display:flex; align-items:center; justify-content:center; margin:1.25rem 0 0; color:var(--muted); text-align:center; font-size:.8rem; } .privacy-note .icon { width:1rem; height:1rem; }
.help-modal { width:min(calc(100% - 2rem),31rem); max-height:calc(100vh - 2rem); padding:1.3rem; color:var(--ink); background:var(--surface); border:1px solid var(--line); border-radius:1rem; box-shadow:0 1rem 3rem rgba(19,35,50,.25); } .help-modal::backdrop { background:rgba(19,35,50,.48); } .help-modal-header { display:flex; align-items:center; justify-content:space-between; gap:1rem; } .help-modal-header h2 { margin:0; font-size:1.15rem; } .help-modal .icon-button { margin:0; padding:.25rem; } .help-modal section { margin-top:1.2rem; } .help-modal h3 { margin:0 0 .45rem; font-size:.92rem; } .help-modal p { margin:.45rem 0 0; color:var(--muted); font-size:.84rem; line-height:1.5; } .help-modal ul { margin:.5rem 0 0; padding-left:1.2rem; color:var(--muted); font-size:.84rem; line-height:1.6; } .help-modal code { display:inline-block; padding:.25rem .45rem; color:var(--green-dark); background:var(--green-soft); border-radius:.35rem; font-size:.78rem; } .about-app { padding-top:1rem; border-top:1px solid var(--line); } .help-modal:focus-visible { outline:3px solid #9de7ad; outline-offset:3px; }
[hidden] { display:none!important; } @media (min-width:768px) { .app-shell { padding-top:4rem; } .app-header { margin-bottom:2rem; } .recommendation-card { padding:1.5rem; } }