/* Stile coerente con simonecastellan.com — minimale, monocromatico, luce. */
:root {
  --bg: #ffffff;
  --text: #3c4043;
  --ink: #1a1a1a;       /* testo forte */
  --muted: #5f6368;
  --muted-2: #80868b;
  --faint: #9aa0a6;
  --pill: #f1f3f4;
  --pill-hover: #e6e8ea;
  --line: #c2c6cc;
  --line-soft: #dadce0;
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px 20px calc(64px + env(safe-area-inset-bottom));
  text-align: center;
}

.card {
  width: 100%;
  max-width: 440px;
}

/* Intestazione */
header { margin-bottom: 26px; }
h1 {
  font-size: 26px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.2px;
}
.subtitle {
  font-size: 16px;
  font-weight: 400;
  color: var(--muted);
  margin-top: 10px;
  line-height: 1.5;
}

/* Drop zone */
.dropzone {
  border: 1.5px dashed var(--line-soft);
  border-radius: 22px;
  padding: 34px 20px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
  background: #fafbfc;
}
.dropzone:hover { background: var(--pill); }
.dropzone.dragover { background: var(--pill); border-color: var(--muted-2); }
.dz-title { font-size: 16px; font-weight: 500; color: var(--ink); }
.dz-or { color: var(--faint); margin: 6px 0 16px; font-size: 13px; }

/* Bottoni — pillole come sul sito */
.btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background .15s ease, opacity .15s ease;
}
.btn-primary { background: var(--ink); color: #fff; width: 100%; }
.btn-primary:hover { background: #000; }
.btn-secondary { background: var(--pill); color: var(--ink); width: 100%; }
.btn-secondary:hover { background: var(--pill-hover); }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  font-weight: 500;
  font-size: 13px;
  margin-top: 14px;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  padding: 0 0 1px;
}
.btn-ghost:hover { color: var(--ink); }
.dropzone .btn { width: auto; min-width: 150px; }

/* Stato / progresso */
.status { padding: 16px 0 4px; }
.status-text { color: var(--muted); font-size: 15px; margin-bottom: 16px; }
.progress {
  width: 100%;
  height: 6px;
  background: var(--pill);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--ink);
  border-radius: 999px;
  transition: width .2s ease;
}

/* Risultato */
.result-head {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 20px;
  word-break: break-all;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.metric {
  background: var(--pill);
  border-radius: 14px;
  padding: 14px 8px;
}
.metric-label {
  display: block;
  color: var(--muted-2);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .6px;
}
.metric-value { display: block; font-size: 17px; font-weight: 700; color: var(--ink); margin-top: 5px; }
.metric-value.neutral { color: var(--muted-2); }

.actions { display: flex; flex-direction: column; gap: 10px; }
.send-hint {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* Errore */
.error { padding: 8px 0; }
.error-title { font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.error-msg { color: var(--muted); font-size: 14px; line-height: 1.5; margin-bottom: 16px; }

/* Privacy */
.privacy {
  margin-top: 26px;
  font-size: 12px;
  color: var(--faint);
  letter-spacing: .1px;
}

/* Footer fisso, come il credit del sito */
.site-footer {
  position: fixed;
  left: 0; right: 0;
  bottom: 16px;
  text-align: center;
  font-size: 12px;
  color: #6b7075;
  letter-spacing: .2px;
}
.site-footer a { color: #6b7075; text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: 1px; }
.site-footer a:hover { color: var(--ink); }

.hidden { display: none !important; }

@media (max-width: 460px) {
  h1 { font-size: 22px; }
  .subtitle { font-size: 15px; }
}