:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f0f3f9;
  --text: #172033;
  --muted: #5d6a82;
  --border: #dbe1ec;
  --primary: #2f5bea;
  --primary-hover: #2449c4;
  --primary-text: #ffffff;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --ok: #1e8a4c;
  --warn-bg: #fff6e0;
  --warn-text: #7a5300;
  --focus: rgba(47, 91, 234, 0.35);
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 8px 24px rgba(16, 24, 40, 0.06);
  --mono: ui-monospace, 'Cascadia Mono', 'Consolas', 'SFMono-Regular', monospace;
  color-scheme: light;
}

/* Tema scuro: segue il browser, a meno che l'utente non abbia scelto il tema chiaro;
   oppure scelto esplicitamente con il pulsante (data-theme="dark"). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0f1420;
    --surface: #171e2d;
    --surface-2: #1f2839;
    --text: #e6eaf2;
    --muted: #97a3b9;
    --border: #2c3649;
    --primary: #5b7fff;
    --primary-hover: #7593ff;
    --primary-text: #0b1020;
    --danger: #ff6b5b;
    --danger-bg: #3a1d1b;
    --ok: #4cc983;
    --warn-bg: #3a2f12;
    --warn-text: #f3cf75;
    --focus: rgba(91, 127, 255, 0.45);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #0f1420;
  --surface: #171e2d;
  --surface-2: #1f2839;
  --text: #e6eaf2;
  --muted: #97a3b9;
  --border: #2c3649;
  --primary: #5b7fff;
  --primary-hover: #7593ff;
  --primary-text: #0b1020;
  --danger: #ff6b5b;
  --danger-bg: #3a1d1b;
  --ok: #4cc983;
  --warn-bg: #3a2f12;
  --warn-text: #f3cf75;
  --focus: rgba(91, 127, 255, 0.45);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

*,
*::before,
*::after { box-sizing: border-box; }

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 0.5rem; }
h1 { font-size: 1.6rem; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1rem; }
a { color: var(--primary); }

/* ------------------------------------------------------------ layout */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}
.topbar nav { display: flex; gap: 0.25rem; }
.topbar > :nth-child(2) { margin-left: auto; }
@media (max-width: 480px) {
  .topbar { gap: 0.4rem; padding-left: 0.85rem; padding-right: 0.85rem; }
  .topbar nav { gap: 0; }
  .topbar nav a { padding: 0.4rem 0.5rem; font-size: 0.92rem; }
  .brand { font-size: 1rem; gap: 0.4rem; }
}

/* Pulsante tema chiaro/scuro: mostra la luna nel tema chiaro e il sole in quello scuro. */
.theme-toggle {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.theme-toggle:hover { background: var(--surface-2); color: var(--text); }
.theme-toggle:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--focus); }
.theme-toggle svg { width: 1.15rem; height: 1.15rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme='dark'] .theme-toggle .icon-sun { display: block; }
:root[data-theme='dark'] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme='light']) .theme-toggle .icon-moon { display: none; }
}
.topbar nav a {
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}
.topbar nav a:hover { background: var(--surface-2); color: var(--text); }
.topbar nav a[aria-current='page'] { background: var(--surface-2); color: var(--text); }

.container {
  flex: 1 0 auto;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(1rem, 4vw, 2.5rem) clamp(1rem, 4vw, 2rem) 4rem;
}
.container.narrow { max-width: 640px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 4vw, 2rem);
}
[data-view='create'], [data-view='result'], .narrow-card { max-width: 640px; margin: 0 auto; }

.lead { color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.eyebrow {
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow.ok { color: var(--ok); }

.row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-top: 0.75rem; }
.row.between { justify-content: space-between; margin-top: 0.5rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
@media (max-width: 520px) { .grid-2 { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ form */

label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin: 1rem 0 0.35rem;
}
.optional { font-weight: 400; color: var(--muted); font-size: 0.85rem; }

input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea { resize: vertical; font-family: var(--mono); font-size: 0.95rem; }
input:focus, select:focus, textarea:focus, .btn:focus-visible, .tabs button:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--focus);
}
input[readonly], textarea[readonly] { background: var(--surface-2); }

.hint { font-size: 0.85rem; color: var(--muted); margin: 0.35rem 0 0; }
.error {
  margin: 1rem 0 0;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  background: var(--danger-bg);
  color: var(--danger);
  font-size: 0.92rem;
}
.notice { margin: 1rem 0 0; font-size: 0.92rem; color: var(--muted); }
.notice.warn {
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn-text);
}

.input-group { display: flex; gap: 0.4rem; }
.input-group input { flex: 1; min-width: 0; font-family: var(--mono); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.hint.right { text-align: right; }
.mono { font-family: var(--mono); }
.small-text { font-size: 0.82rem; }

/* Schede "tipo di secret" e pannelli */
#create-form .tabs { margin-top: 0.5rem; }
.panel { padding-bottom: 0.25rem; }
#pw-out { font-size: 1.05rem; letter-spacing: 0.03em; }
input[type='range'] { padding: 0; border: 0; accent-color: var(--primary); }
input[type='range']:focus { box-shadow: none; }
.checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
  margin: 0.75rem 0 0;
  padding: 0;
  border: 0;
}
.checks label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-weight: 400;
  font-size: 0.92rem;
  cursor: pointer;
}
.checks .wide { grid-column: 1 / -1; }
.checks input { width: auto; accent-color: var(--primary); }
@media (max-width: 520px) { .checks { grid-template-columns: 1fr; } }
#ssh-gen { margin-top: 1rem; }

/* Commento del mittente */
.comment-box {
  margin: 0.75rem 0 1rem;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
  background: var(--surface-2);
}
.comment-box figcaption {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}
.comment-box blockquote { margin: 0.2rem 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }

.mono-big { font-size: 1.15rem; letter-spacing: 0.03em; }

/* CAPTCHA «Non sono un robot» */
.captcha {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
}
.captcha + .btn.block { margin-top: 1rem; }
.captcha-box {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
}
.captcha-check {
  width: 1.4rem;
  height: 1.4rem;
  margin: 0;
  accent-color: var(--ok);
  cursor: pointer;
}
.captcha-spinner {
  display: none;
  width: 1.4rem;
  height: 1.4rem;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: captcha-spin 0.8s linear infinite;
}
.captcha[data-state='working'] .captcha-check { display: none; }
.captcha[data-state='working'] .captcha-spinner { display: inline-block; }
.captcha[data-state='working'] .captcha-box { cursor: progress; }
.captcha[data-state='done'] .captcha-label { color: var(--ok); font-weight: 600; }
.captcha[data-state='done'] .captcha-box { cursor: default; }
.captcha[data-state='error'] .captcha-label { color: var(--danger); }
.captcha-note { font-size: 0.72rem; line-height: 1.3; color: var(--muted); text-align: right; }
@keyframes captcha-spin { to { transform: rotate(360deg); } }
.captcha[data-state='loading'] { visibility: hidden; }

/* Variante Google reCAPTCHA: il riquadro lo disegna Google (304×78 px). */
.captcha.captcha-google {
  display: block;
  min-height: 78px;
  padding: 0;
  border: 0;
  background: none;
}
.captcha-google > div { max-width: 100%; overflow: hidden; }
/* Variante reCAPTCHA v3: niente casella, solo la dicitura richiesta da Google. */
.captcha.captcha-google-v3 {
  display: block;
  margin-top: 1.25rem;
  padding: 0;
  border: 0;
  background: none;
}
.captcha-v3-note { margin: 0; font-size: 0.78rem; line-height: 1.4; color: var(--muted); }
.captcha-v3-note a { color: inherit; }
/* Il badge flottante di Google si può nascondere se la pagina mostra la dicitura qui sopra. */
.grecaptcha-badge { visibility: hidden; }

.captcha-error {
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
  color: var(--danger);
}

/* Indicatore di robustezza della passphrase */
.meter {
  height: 6px;
  margin-top: 0.5rem;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
}
.meter span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 3px;
  background: var(--danger);
  transition: width 0.2s, background-color 0.2s;
}
.meter[data-level='debole'] span { background: #d68a00; }
.meter[data-level='buona'] span { background: var(--ok); }
.meter[data-level='ottima'] span { background: var(--ok); }
[data-feedback-for].bad { color: var(--danger); }
[data-feedback-for].good { color: var(--ok); }

/* ------------------------------------------------------------ bottoni */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font: inherit;
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn:disabled { opacity: 0.6; cursor: default; }
.btn.block { width: 100%; margin-top: 1.5rem; padding: 0.75rem; }
.btn.small { padding: 0.3rem 0.65rem; font-size: 0.85rem; }
.btn.primary { background: var(--primary); color: var(--primary-text); }
.btn.primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.ghost:hover:not(:disabled) { background: var(--surface-2); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.danger.subtle { background: transparent; color: var(--danger); border-color: var(--border); }
.btn.danger.subtle:hover:not(:disabled) { background: var(--danger-bg); border-color: var(--danger); }
.btn.copied { color: var(--ok); border-color: var(--ok); }
.btn.primary.copied { background: var(--ok); color: #fff; }

/* ------------------------------------------------------------ link creato */

.copy-field { display: flex; gap: 0.5rem; margin: 1rem 0; }
.copy-field input { flex: 1; min-width: 0; font-family: var(--mono); font-size: 0.9rem; }

.facts { margin: 0.5rem 0 1rem; padding-left: 1.2rem; color: var(--muted); }
.facts li { margin: 0.25rem 0; }
.facts li.warn { color: var(--warn-text); font-weight: 600; }

/* ------------------------------------------------------------ come funziona */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 900px;
  margin: 2.5rem auto 0;
}
.steps > div { padding: 0 0.25rem; }
.steps span {
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.steps h2 { font-size: 1rem; }
.steps p { color: var(--muted); font-size: 0.92rem; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ cassaforte */

.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.25rem;
  background: var(--surface-2);
  border-radius: 10px;
  margin: 1rem 0 0.5rem;
}
.tabs button {
  flex: 1;
  font: inherit;
  font-weight: 600;
  padding: 0.5rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.tabs button[aria-selected='true'] { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

.vault-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.vault-bar h1 { margin: 0; word-break: break-word; }
.vault-bar .small { margin: 0.2rem 0 0; }
.vault-tools { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.vault-tools input[type='search'] { width: 220px; }
@media (max-width: 600px) {
  .vault-tools { width: 100%; }
  .vault-tools input[type='search'] { width: 100%; }
}

.entries { display: grid; gap: 0.85rem; }
.entry { padding: 1rem 1.25rem; }
.entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.entry-head h3 { margin: 0; word-break: break-word; }
.entry-actions { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.fields { margin: 0.75rem 0 0; display: grid; gap: 0.4rem; }
.field {
  display: grid;
  grid-template-columns: 6rem 1fr;
  align-items: start;
  gap: 0.5rem;
}
.field dt { color: var(--muted); font-size: 0.88rem; padding-top: 0.3rem; }
.field dd { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; min-width: 0; }
.field .value { flex: 1 1 12rem; min-width: 0; overflow-wrap: anywhere; padding: 0.2rem 0; }
.field .notes { white-space: pre-wrap; }
.mono { font-family: var(--mono); font-size: 0.93rem; }
.masked { letter-spacing: 0.1em; color: var(--muted); }
@media (max-width: 520px) {
  .field { grid-template-columns: 1fr; gap: 0.1rem; }
  .field dt { padding-top: 0; }
}
.entry .meta { margin: 0.6rem 0 0; font-size: 0.8rem; color: var(--muted); }

.empty { text-align: center; color: var(--muted); }
.empty h2 { color: var(--text); }
.empty p { margin: 0; }

.vault-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ------------------------------------------------------------ dialog */

dialog {
  width: min(560px, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 1.5rem;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}
dialog::backdrop { background: rgba(10, 15, 25, 0.55); }
dialog h2 { font-size: 1.25rem; word-break: break-word; }
dialog label:first-of-type { margin-top: 0.75rem; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1.5rem; }

/* ------------------------------------------------------------ footer */

.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 1.75rem 1rem 2rem;
  border-top: 1px solid var(--border);
}
/* Co-branding: eSecret | logo Impresa Sangalli, tutto in un unico blu che segue il tema. */
.lockup {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--primary);
}
.lockup-esecret { display: inline-flex; align-items: center; gap: 0.5rem; }
.lockup-shield .shield { fill: currentColor; }
.lockup-shield .hole { fill: var(--bg); }
.lockup-name { font-weight: 700; font-size: 1.1rem; letter-spacing: -0.01em; }
.lockup-divider { width: 1px; height: 2.75rem; background: var(--border); }
.partner-link { color: inherit; display: block; border-radius: 6px; transition: opacity 0.15s; }
.partner-link:hover { opacity: 0.8; }
.partner-link:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--focus); }
/* Logo monocromatico: il PNG fa da maschera e prende il colore del testo. */
.partner-mark {
  display: block;
  width: 136px;
  aspect-ratio: 344 / 164;
  background-color: currentColor;
  -webkit-mask: url('/assets/sangalli-mask.png') center / contain no-repeat;
  mask: url('/assets/sangalli-mask.png') center / contain no-repeat;
}

.legal-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.25rem 1.25rem; margin-top: 0.4rem; }
.legal-links a { font-size: 0.85rem; color: var(--muted); text-decoration: none; }
.legal-links a:hover { color: var(--primary); text-decoration: underline; }
.company-line { margin: 0; font-size: 0.75rem; color: var(--muted); text-align: center; }

/* ------------------------------------------------------------ pagine legali */

.legal h2 { margin: 1.75rem 0 0.5rem; font-size: 1.08rem; }
.legal p, .legal li { line-height: 1.65; }
.legal ul { margin: 0 0 1rem; padding-left: 1.25rem; }
.legal li { margin: 0.35rem 0; }
.legal code { font-family: var(--mono); font-size: 0.88em; background: var(--surface-2); padding: 0.1em 0.35em; border-radius: 4px; }
.table-wrap { overflow-x: auto; margin: 0 0 1rem; }
.legal table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.legal th, .legal td { text-align: left; vertical-align: top; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--border); }
.legal th { color: var(--muted); font-weight: 600; font-size: 0.82rem; }

/* ------------------------------------------------------------ toast */

#toasts {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  display: grid;
  gap: 0.5rem;
  z-index: 100;
  width: min(440px, calc(100vw - 2rem));
}
.toast {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow);
  font-size: 0.92rem;
  transition: opacity 0.3s, transform 0.3s;
}
.toast.ok { background: var(--ok); color: #fff; }
.toast.error { background: var(--danger); color: #fff; }
.toast.out { opacity: 0; transform: translateY(6px); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}