/* 3omar.hs — Fuel Calculator (NEW-06) */
/* ---- shared tool UI (same block in every NEW-tool style.css so each folder is self-contained) ---- */
.nt { --nt-accent: var(--brand); --nt-accent-bg: color-mix(in srgb, var(--brand) 14%, transparent); --nt-accent-border: color-mix(in srgb, var(--brand) 40%, transparent); --nt-ok: #4ade80; --nt-warn: #fbbf24; --nt-err: #f87171; --nt-surface: rgba(255,255,255,.035); }
html.light-mode .nt { --nt-accent: var(--brand); --nt-accent-bg: rgba(79,70,229,.08); --nt-accent-border: rgba(79,70,229,.35); --nt-ok: #15803d; --nt-warn: #92400e; --nt-err: #b91c1c; --nt-surface: rgba(15,23,42,.03); }
.nt .tool-hero { padding-top: 12px; }
.nt .tool-hero h1 { margin-top: 12px; }
.nt-facts { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 14px 0 0; }
.nt-facts li { font-size: .82rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); color: var(--glass-text-muted); }
.nt-panel { margin-top: 18px; }
.nt-panel > h2, .nt-h2 { margin: 0 0 12px; font-size: 1.15rem; }
.nt-h3 { margin: 0 0 8px; font-size: 1rem; }
.nt-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.nt-fields { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); }
.nt .field label { font-size: .86rem; }
.nt .field .hint { margin: 0; }
.nt .input, .nt .select { min-height: 44px; }
.nt .input[aria-invalid="true"] { border-color: var(--nt-err); }
.nt-err-msg { color: var(--nt-err); font-size: .82rem; min-height: 0; }
.nt-err-msg:empty { display: none; }
.nt-unit { position: relative; }
.nt-unit .input { padding-inline-end: 58px; }
.nt-unit__tag { position: absolute; inset-inline-end: 12px; top: 50%; transform: translateY(-50%); font-size: .8rem; color: var(--glass-text-muted); pointer-events: none; }

/* tabs */
.nt-tabs { display: flex; gap: 6px; padding: 5px; border-radius: 14px; background: var(--glass-bg-subtle); border: 1px solid var(--glass-border); overflow-x: auto; scrollbar-width: none; }
.nt-tabs::-webkit-scrollbar { display: none; }
.nt-tab { flex: 1 0 auto; min-height: 42px; padding: 8px 14px; border: 0; border-radius: 10px; background: transparent; color: var(--glass-text-muted); font: inherit; font-weight: 700; font-size: .9rem; cursor: pointer; white-space: nowrap; }
.nt-tab[aria-selected="true"] { background: var(--pill-gradient-active); color: #fff; box-shadow: 0 6px 18px rgba(79,70,229,.3); }
.nt-tab:not([aria-selected="true"]):hover { background: var(--glass-bg-hover); color: var(--glass-text-main); }
[role="tabpanel"][hidden] { display: none; }

/* segmented radio control */
.nt-seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 12px; border: 1px solid var(--control-border); background: var(--control-bg); }
.nt-seg label { position: relative; cursor: pointer; }
.nt-seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.nt-seg span { display: inline-flex; align-items: center; min-height: 34px; padding: 4px 12px; border-radius: 9px; font-size: .85rem; font-weight: 700; color: var(--glass-text-muted); }
.nt-seg input:checked + span { background: var(--nt-accent-bg); color: var(--nt-accent); box-shadow: inset 0 0 0 1px var(--nt-accent-border); }
.nt-seg input:focus-visible + span { box-shadow: var(--focus-ring); }

/* result tiles */
.nt-stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); margin-top: 16px; }
.nt-stat { padding: 14px 16px; border-radius: 16px; background: var(--nt-surface); border: 1px solid var(--glass-border); min-width: 0; }
.nt-stat__label { display: block; font-size: .8rem; font-weight: 600; color: var(--glass-text-muted); }
.nt-stat__value { display: block; margin-top: 4px; font-size: clamp(1.25rem, 3.4vw, 1.6rem); font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.2; overflow-wrap: anywhere; }
.nt-stat__unit { font-size: .8rem; font-weight: 600; color: var(--glass-text-muted); margin-inline-start: 4px; }
.nt-stat--hero { background: linear-gradient(135deg, rgba(79,70,229,.22), rgba(6,182,212,.14)); border-color: var(--nt-accent-border); }
.nt-stat--hero .nt-stat__value { color: var(--nt-accent); }

/* chips & notes */
.nt-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: .78rem; font-weight: 700; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); }
.nt-chip--warn { color: var(--nt-warn); border-color: rgba(245,158,11,.45); background: rgba(245,158,11,.1); }
.nt-chip--ok { color: var(--nt-ok); border-color: rgba(34,197,94,.45); background: rgba(34,197,94,.1); }
.nt-chip--err { color: var(--nt-err); border-color: rgba(239,68,68,.45); background: rgba(239,68,68,.1); }
.nt-note { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); font-size: .9rem; color: var(--glass-text-muted); margin: 12px 0 0; }
.nt-note--warn { border-color: rgba(245,158,11,.45); background: rgba(245,158,11,.08); color: var(--glass-text-main); }
.nt-note--ok { border-color: rgba(34,197,94,.4); background: rgba(34,197,94,.07); }
.nt-note[hidden] { display: none; }
.nt-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.nt-iconbtn { display: inline-grid; place-items: center; min-width: 40px; height: 40px; padding: 0 10px; border-radius: 10px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); color: var(--glass-text-main); font: inherit; font-weight: 700; cursor: pointer; }
.nt-iconbtn:hover { background: var(--glass-bg-hover); }
.nt-iconbtn[aria-pressed="true"] { background: var(--nt-accent-bg); color: var(--nt-accent); border-color: var(--nt-accent-border); }
.nt-iconbtn[disabled] { opacity: .45; cursor: not-allowed; }
.nt-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.nt-empty { color: var(--glass-text-muted); font-size: .9rem; margin: 8px 0 0; }
.nt .table td, .nt .table th { white-space: nowrap; }
.nt .table input { min-height: 38px; padding: 6px 10px; }
.nt-small { font-size: .82rem; color: var(--glass-text-muted); }
.nt a:not(.btn) { color: var(--nt-accent); }
@media (max-width: 560px) { .nt .btn { flex: 1 1 auto; } }
html.light-mode .nt .eyebrow { color: var(--nt-accent); background: var(--nt-accent-bg); border-color: var(--nt-accent-border); }

/* ---- fuel calculator ---- */
.fc-units { margin-top: 14px; gap: 18px; }
.fc-fieldset { border: 0; margin: 0; padding: 0; min-width: 0; display: grid; gap: 6px; }
.fc-fieldset legend { padding: 0; margin-bottom: 6px; }
.fc-panel { padding-top: 18px; }
.fc-panel .nt-small:first-child { margin-top: 0; }
.fc-log-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }
.fc-form { grid-template-columns: repeat(auto-fit, minmax(min(100%, 160px), 1fr)); }
.fc-form__btn { align-self: end; }
.fc-veh-list { margin-top: 12px; }
.fc-veh { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--glass-border); background: var(--nt-surface); }
.fc-veh__text { display: grid; min-width: 0; }
.fc-veh__name { font-weight: 700; overflow-wrap: anywhere; }
.fc-chart-wrap { position: relative; height: 280px; margin-top: 18px; padding: 10px; border-radius: 16px; border: 1px solid var(--glass-border); background: var(--nt-surface); }
.fc-chart-wrap[hidden] { display: none; }
.fc-log-table { margin-top: 16px; }
.fc-log-table .nt-iconbtn { min-width: 32px; height: 32px; }