/* Emerald — colori. Solo tema scuro. */
:root{
  /* Neutri */
  --ink:#141414;              /* fondo unico del sito */
  --ink-raised:#1a1a1a;       /* superfici appena sollevate (schede, pannello menu) */
  --white:#FFFFFF;

  /* Scala smeraldo normalizzata: dal fondo all'accento (9 passi) */
  --emerald-950:#061d1b;
  --emerald-900:#0a2523;
  --emerald-850:#0c2b28;      /* placeholder media */
  --emerald-800:#0d312e;      /* sfumatura di sezione, 42% */
  --emerald-700:#0f4640;
  --emerald-600:#115a53;      /* sfumatura di sezione, 100% */
  --emerald-500:#1a746d;
  --emerald-400:#22938b;
  --emerald-300:#28B4AC;      /* ACCENTO */

  /* Testo bianco a opacità (5 livelli normalizzati da 0.85·0.82·0.78·0.72·0.7·0.6·0.5) */
  --white-85:rgba(255,255,255,0.85);
  --white-78:rgba(255,255,255,0.78);
  --white-70:rgba(255,255,255,0.7);
  --white-60:rgba(255,255,255,0.6);
  --white-50:rgba(255,255,255,0.5);

  /* Linee */
  --white-09:rgba(255,255,255,0.09);
  --white-14:rgba(255,255,255,0.14);
  --white-20:rgba(255,255,255,0.2);
  --white-30:rgba(255,255,255,0.3);
  --emerald-line:rgba(40,180,172,0.5);

  /* Segnali — aggiunta intenzionale: il mock-up non ha stati di errore */
  --signal-error:#E07A6E;

  /* Alias semantici */
  --bg:var(--ink); /* @kind color */
  --surface-card:var(--ink-raised); /* @kind color */
  --surface-media:var(--emerald-850); /* @kind color */
  --surface-header:rgba(20,20,20,0.72); /* @kind color */
  --surface-scrim:rgba(10,10,10,0.6); /* @kind color */

  --accent:var(--emerald-300); /* @kind color */
  --accent-hover:var(--emerald-400); /* @kind color */

  --text-strong:var(--white); /* @kind color */
  --text-high:var(--white-85); /* @kind color */ /* paragrafi in evidenza, link footer */
  --text-body:var(--white-78); /* @kind color */ /* testi correnti */
  --text-muted:var(--white-70); /* @kind color */ /* descrizioni, consensi */
  --text-subtle:var(--white-60); /* @kind color */ /* indirizzi, metadati */
  --text-faint:var(--white-50); /* @kind color */ /* legal, disabilitato */
  --text-accent:var(--accent); /* @kind color */

  --line-soft:var(--white-09); /* @kind color */ /* bordo header in scroll */
  --line:var(--white-14); /* @kind color */ /* divisori standard */
  --line-strong:var(--white-20); /* @kind color */ /* fascia servizi */
  --line-input:var(--white-30); /* @kind color */ /* campi modulo a riposo */
  --line-accent:var(--emerald-line); /* @kind color */

  /* Sfumature */
  --gradient-section:linear-gradient(178deg,#141414 0%,#0d312e 42%,#115a53 100%); /* @kind color */
  --gradient-media-protect:linear-gradient(to top,#141414 0%,rgba(20,20,20,0.75) 26%,rgba(20,20,20,0.15) 52%,transparent 70%); /* @kind color */
  --gradient-card-protect:linear-gradient(to top,rgba(20,20,20,0.9) 0%,rgba(20,20,20,0) 60%); /* @kind color */
}