/* Foglio di stile della sola pagina di login.
   E' separato (e pubblico) perche' la pagina di login viene servita prima
   dell'autenticazione: non puo' caricare styles.css, che invece e' protetto. */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --border: #e0e0da;
  --text: #1a1a18;
  --muted: #6b6b64;
  --accent: #2f6fd0;
  --accent-text: #ffffff;
  --danger: #c0392b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1420;
    --surface: #171d2b;
    --border: #2a3247;
    --text: #e8eaf0;
    --muted: #939bb0;
    --accent: #6ea8fe;
    --accent-text: #0f1420;
    --danger: #ff7b72;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

main {
  width: min(360px, 100%);
  padding: 28px 24px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 8px 28px rgba(0, 0, 0, .08);
}

img { border-radius: 16px; }

h1 {
  margin: 12px 0 22px;
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -.01em;
}

label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  color: var(--muted);
}

input[type="password"] {
  width: 100%;
  padding: 11px 13px;
  font: inherit;
  font-size: 16px; /* sotto i 16px Safari su iPhone zooma */
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
}
input[type="password"]:focus { border-color: var(--accent); }

button {
  width: 100%;
  margin-top: 14px;
  padding: 12px;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}

.error {
  margin: 0 0 16px;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: 10px;
}

.hint {
  margin: 18px 0 0;
  font-size: 12px;
  color: var(--muted);
}