/* My Carbon Trip · app del viaggiatore, nello stile del sito: blu notte #0a1f44, verde foglia #5b9a34,
   pulsanti a pillola, schede morbide, fondo con foglie chiare. Il verde dei pulsanti è quello scuro del sito
   (#3f7a22): con il testo bianco il verde chiaro non si legge abbastanza. */
:root {
  --navy: #0a1f44; --leaf: #5b9a34; --leaf-dark: #3f7a22; --leaf-light: #eef6e8; --sky: #f4f8fb;
  --bg: #f7f9fb; --fg: #0a1f44; --muted: #55627a; --line: #dfe6ee; --card: #fff;
  --accent: #3f7a22; --accent-fg: #fff; --link: #3f7a22; --chip-bg: #fff; --chip-line: #d7e6cc;
  --shadow: 0 8px 24px rgba(10, 31, 68, .08); --err: #a1302a; --warn: #8a6212;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1426; --fg: #e8edf5; --muted: #a4afc2; --line: #22314d; --card: #111d35; --sky: #0e1a31;
          --leaf-light: #16301f; --accent: #8cc56a; --accent-fg: #0b1426; --link: #a6d98a; --chip-bg: #111d35;
          --chip-line: #2c4a2a; --shadow: 0 8px 24px rgba(0, 0, 0, .35); --err: #f08a82; --warn: #e3b85c; }
}
* { box-sizing: border-box; }
html, body { margin: 0; color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
/* foglie e colline chiare come nel sito */
body { min-height: 100vh; background:
  radial-gradient(circle at 100% 0, rgba(91, 154, 52, .14) 0 140px, transparent 141px),
  radial-gradient(circle at 0 70%, rgba(91, 154, 52, .08) 0 110px, transparent 111px),
  linear-gradient(180deg, var(--leaf-light) 0, var(--bg) 320px) no-repeat, var(--bg); }

/* barra in alto */
.bar { position: sticky; top: 0; z-index: 2; display: flex; flex-wrap: wrap; justify-content: space-between;
  align-items: center; gap: 8px 12px; padding: 10px 16px; background: var(--card); box-shadow: 0 2px 12px rgba(10, 31, 68, .07); }
.brand { display: block; line-height: 0; }
.brand img { height: 42px; width: auto; }
.bar nav { display: flex; flex-wrap: wrap; gap: 4px; }
.bar nav[hidden] { display: none; }                /* senza accesso il menu non c'è */
.bar nav button { background: none; color: var(--fg); border: 0; padding: 7px 14px; border-radius: 999px; font: inherit;
  font-weight: 600; font-size: .95rem; cursor: pointer; }
.bar nav button:hover { background: var(--sky); }
.bar nav button.on { background: var(--leaf-light); color: var(--link); }

main { max-width: 640px; margin: 0 auto; padding: 20px 16px 40px; }
h1 { font-size: 1.6rem; line-height: 1.15; font-weight: 800; letter-spacing: -.01em; margin: 8px 0 12px; }
h2 { font-size: 1.1rem; font-weight: 800; margin: 26px 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; margin: 12px 0;
  box-shadow: var(--shadow); }
.muted { color: var(--muted); }
.pad { padding: 8px; margin: 0; }
.low { outline: 2px solid var(--warn); outline-offset: 1px; }   /* campo importato da confermare */
.err { color: var(--err); }
.center { text-align: center; }
a { color: var(--link); }

/* benvenuto: come l'apertura del sito */
.hero { text-align: left; margin: 4px 0 18px; }
.hero img { width: 76px; height: auto; background: #fff; border-radius: 18px; padding: 8px; box-shadow: var(--shadow); }
.hero h1 { font-size: 1.9rem; margin-top: 16px; }
.hero h1 span { display: block; color: var(--leaf); }
.kicker { text-transform: uppercase; letter-spacing: .18em; font-size: .75rem; font-weight: 700; color: var(--leaf); margin: 0; }
.chips span { display: inline-block; margin: 0 6px 6px 0; padding: 4px 12px; border-radius: 999px; background: var(--chip-bg);
  border: 1px solid var(--chip-line); color: var(--link); font-weight: 600; font-size: .85rem; }

/* numeri grandi: la CO₂ «sulla bilancia» */
.big { font-size: 2.1rem; line-height: 1.1; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--fg); }
.big::after { content: ""; display: block; width: 48px; height: 4px; margin-top: 10px; border-radius: 2px; background: var(--leaf); }

/* moduli */
label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: .92rem; }
input, select, button { font: inherit; }
input, select { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); color: var(--fg); }
input:focus, select:focus { outline: 2px solid var(--leaf); outline-offset: 1px; border-color: transparent; }
input[type=checkbox] { width: auto; margin: 3px 10px 0 0; accent-color: var(--leaf-dark); }
.check { display: flex; align-items: flex-start; font-weight: 400; }
button { cursor: pointer; }
button.primary { width: 100%; padding: 13px 20px; border: 0; border-radius: 999px; background: var(--accent); color: var(--accent-fg);
  font-weight: 700; margin-top: 16px; box-shadow: 0 6px 16px rgba(63, 122, 34, .25); }
button.primary:hover { filter: brightness(1.07); }
button.link { background: none; border: 0; color: var(--link); padding: 4px 0; text-decoration: underline; font-weight: 600; }
button.secondary { padding: 9px 16px; border: 2px solid var(--fg); border-radius: 999px; background: transparent; color: var(--fg);
  font-weight: 700; margin: 4px 6px 4px 0; }
button.secondary:hover { background: var(--fg); color: var(--bg); }

/* elenco delle operazioni */
.trip { display: flex; justify-content: space-between; align-items: center; gap: 10px; width: 100%; text-align: left;
  background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--leaf); border-radius: 16px;
  padding: 13px 16px; margin: 10px 0; color: var(--fg); box-shadow: var(--shadow); }
.trip:hover { border-color: var(--leaf); }
.trip .kg { font-weight: 800; font-variant-numeric: tabular-nums; white-space: nowrap; }
.leg { border-left: 4px solid var(--leaf); padding-left: 12px; margin: 14px 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.suggest { border: 1px solid var(--line); border-radius: 12px; background: var(--card); margin-top: 4px; overflow: hidden; box-shadow: var(--shadow); }
.suggest button { display: block; width: 100%; text-align: left; background: none; border: 0; padding: 9px 12px; color: var(--fg); }
.suggest button:hover, .suggest button:focus { background: var(--leaf-light); }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
td, th { padding: 8px 4px; border-bottom: 1px solid var(--line); text-align: left; font-size: .95rem; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.qr { display: block; margin: 12px auto; width: 220px; height: 220px; background: #fff; border-radius: 12px; padding: 6px; }

/* novità: schede scorrevoli */
.news { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 12px; margin: 6px 0 4px; scroll-snap-type: x mandatory; }
.newscard { flex: 0 0 min(78%, 260px); scroll-snap-align: start; display: flex; flex-direction: column; gap: 4px;
  background: var(--card); border: 1px solid var(--line); border-top: 4px solid var(--leaf); border-radius: 16px;
  padding: 12px 14px; color: var(--fg); text-decoration: none; box-shadow: var(--shadow); }
.newscard img { width: 100%; height: 110px; object-fit: cover; border-radius: 10px; margin-bottom: 4px; }
.newscard strong { font-size: 1rem; line-height: 1.25; }
.newscard .muted { font-size: .85rem; line-height: 1.3; }

/* note piccole (regole del nome utente, attribuzioni) */
.hint { color: var(--muted); font-size: .8rem; margin: 6px 0 0; }
.hint a { color: inherit; }