/* Konwerter radiosondażu: styl spójny z resztą OGraf.pl (czcionki systemowe, bez pobierania) */
:root {
    --text: #1f2933; --muted: #5b6770; --head: #14304a; --accent: #1b6ca8; --accent-2: #4fd1e5;
    --rule: #d5dce3; --panel: #f3f6f9; --bg: #ffffff; --navy: #0f2438; --navy-2: #17415f; --warn: #b45309;
    --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Roboto, "Noto Sans", "DejaVu Sans", Arial, sans-serif;
    --mono: "Cascadia Mono", "Cascadia Code", Consolas, "SF Mono", Menlo, "DejaVu Sans Mono", monospace;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--sans); font-size: 16px; line-height: 1.65; color: var(--text); background: var(--bg); }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid #ffd166; outline-offset: 2px; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }

/* Menu i nagłówek strony */
.topbar { background: var(--navy); }
.menu { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 24px; margin: 0; padding: 12px 0; font-size: 0.95rem; }
.menu a { color: #cfe3f1; text-decoration: none; font-weight: 600; }
.menu a:hover, .menu a[aria-current] { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.pagehead { background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; }
.pagehead .wrap { padding-top: 34px; padding-bottom: 34px; }
.pagehead h1 { margin: 0 0 4px; font-size: 2.1rem; letter-spacing: -0.01em; line-height: 1.15; }
.pagehead p { margin: 0; color: #a9c8de; }

/* Treść */
main section { padding: 36px 0 4px; }
h2 { font-size: 1.3rem; color: var(--head); margin: 0 0 14px; padding-bottom: 6px; border-bottom: 1px solid var(--rule); }
h3 { font-size: 1.05rem; color: var(--accent); margin: 1.4em 0 0.4em; }
p { margin: 0 0 12px; }
ol, ul { padding-left: 1.4em; }
li { margin: 0.35em 0; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--panel); border: 1px solid var(--rule); padding: 1px 5px; border-radius: 2px; }

/* Panel narzędzia */
.tool { background: var(--panel); border: 1px solid var(--rule); border-top: 3px solid var(--accent); padding: 18px 20px; }
.tool label { display: block; font-weight: 600; color: var(--head); margin-bottom: 6px; font-size: 0.95rem; }
.form-group { margin-bottom: 16px; }
textarea { width: 100%; height: 220px; padding: 10px 12px; border: 1px solid #b9c4cf; background: #fff; color: var(--text);
           border-radius: 2px; font-family: var(--mono); font-size: 0.85rem; resize: vertical; }
textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
button { font: inherit; font-weight: 600; padding: 9px 22px; background: var(--accent); color: #fff; border: 1px solid var(--accent); border-radius: 2px; cursor: pointer; }
button:hover { background: #155a8c; }
button:disabled { background: #94a3b8; border-color: #94a3b8; cursor: not-allowed; }

.info-box { background: #eaf3fb; border-left: 3px solid var(--accent); padding: 10px 14px; margin-bottom: 16px; font-size: 0.95rem; }
.info-box[hidden] { display: none; }
.info-box.warn { background: #fdf6e3; border-left-color: #c9971c; }
.error-box { background: #fdecea; color: #8c1d18; border-left: 3px solid #b3261e; padding: 10px 14px; margin-bottom: 16px; font-size: 0.95rem; }
.error-box[hidden] { display: none; }

.table-container { max-height: 360px; overflow: auto; border: 1px solid var(--rule); background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; text-align: left; font-variant-numeric: tabular-nums; }
th, td { padding: 6px 12px; border-bottom: 1px solid var(--rule); }
th { background: #fff; color: var(--head); font-weight: 600; border-bottom: 2px solid var(--head); position: sticky; top: 0; z-index: 1; }
tr:hover td { background: var(--panel); }

.note { background: #fdf6e3; border-left: 3px solid #c9971c; padding: 10px 16px; margin: 22px 0 6px; font-size: 0.95rem; }

.footer { margin-top: 56px; background: var(--navy); color: #a9c8de; font-size: 0.88rem; }
.footer .wrap { padding-top: 18px; padding-bottom: 18px; }
.footer p { margin: 0; }
.footer a { color: #cfe3f1; }

@media (max-width: 760px) {
    .pagehead h1 { font-size: 1.6rem; }
    textarea { height: 180px; }
}