/* GHISA — stile. Palette chiara, forme morbide. */
:root {
  --sfondo: #F6F9FC;
  --superficie: #FFFFFF;
  --superficie-2: #EEF3FA;
  --testo: #101F33;
  --testo-2: #5B6B85;
  --linea: #E3EAF3;
  --accento: #0077A0;
  --recupero: #FF7A45;
  --fatto: #0C8A85;
  --errore: #C62828;
  --raggio: 18px;
  --raggio-piccolo: 12px;
  --ombra: 0 1px 2px rgba(16, 31, 51, .05), 0 1px 1px rgba(16, 31, 51, .04);
  --ombra-alta: 0 12px 28px rgba(16, 31, 51, .10), 0 2px 8px rgba(16, 31, 51, .05);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--sfondo); color: var(--testo); }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  min-height: 100vh;
  /* Spazio per notch, Dynamic Island e barra della Home */
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.contenitore { max-width: 520px; margin: 0 auto; padding: 20px 18px 40px; }
.centrato { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.caricamento { text-align: center; color: var(--testo-2); padding: 40px; }

.marchio { font-weight: 800; letter-spacing: .14em; color: var(--accento); font-size: 34px; margin: 0 0 20px; text-align: center; }
.intestazione { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 12px; }
.intestazione .marchio { font-size: 26px; margin: 0; text-align: left; }
.sottotitolo { color: var(--testo-2); font-size: 14px; margin: 4px 0 0; }

.carta {
  background: var(--superficie); border: 1px solid var(--linea); border-radius: var(--raggio);
  padding: 16px 18px; box-shadow: var(--ombra); margin-bottom: 12px;
}
.scheda-accesso {
  width: 100%; max-width: 360px; background: var(--superficie); border: 1px solid var(--linea);
  border-radius: var(--raggio); padding: 28px 22px; box-shadow: var(--ombra-alta);
}

label { display: block; font-size: 13px; font-weight: 600; color: var(--testo-2); margin: 14px 0 0; }
/* 16px: sotto questa dimensione l'iPhone ingrandisce la pagina quando tocchi un campo */
input, select, textarea {
  display: block; width: 100%; margin-top: 6px; font: inherit; font-size: 16px; color: var(--testo);
  background: var(--superficie-2); border: 1.5px solid transparent; border-radius: var(--raggio-piccolo); padding: 13px 14px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accento); background: var(--superficie); }

.btn {
  font: inherit; font-weight: 600; font-size: 16px; border: none; border-radius: var(--raggio);
  padding: 14px 20px; background: var(--superficie-2); color: var(--testo); cursor: pointer;
  transition: transform .08s ease;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; }
.btn.primario { background: var(--accento); color: #fff; width: 100%; margin-top: 22px; box-shadow: 0 8px 20px rgba(0, 119, 160, .25); }
.btn.secondario { background: var(--superficie); border: 1.5px solid var(--linea); color: var(--accento); }
.btn.piccolo { padding: 9px 14px; font-size: 14px; border-radius: 999px; }

.errore { color: var(--errore); font-size: 14px; min-height: 1.2em; margin: 12px 0 0; }

/* ---------- Navigazione ---------- */
.con-barra { padding-bottom: calc(100px + env(safe-area-inset-bottom)); }
.barra {
  position: fixed; left: 0; right: 0; bottom: 0; display: flex; gap: 6px;
  background: rgba(255, 255, 255, .88); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border-top: 1px solid var(--linea); padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
}
.voce {
  flex: 1; text-align: center; padding: 11px 4px; border-radius: 12px;
  color: var(--testo-2); text-decoration: none; font-weight: 600; font-size: 14px;
}
.voce.attiva { color: var(--accento); background: var(--superficie-2); }

/* ---------- Contenuti ---------- */
.titolo-sezione { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--testo-2); margin: 24px 0 10px; }
.titolo { font-size: 17px; font-weight: 650; margin: 0; }
.etichetta { font-size: 12px; text-transform: uppercase; letter-spacing: .07em; color: var(--accento); font-weight: 700; margin: 0 0 4px; }
.riga { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.evidenza { border-left: 4px solid var(--accento); box-shadow: var(--ombra-alta); }
.vuota { color: var(--testo-2); text-align: center; padding: 28px 18px; }
.btn.compatto { width: auto; margin-top: 0; padding: 11px 18px; flex-shrink: 0; }

/* ---------- Allenamento ---------- */
.testata-allenamento {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 16px; background: rgba(246, 249, 252, .92);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border-bottom: 1px solid var(--linea);
}
.testata-centro { display: flex; flex-direction: column; align-items: center; min-width: 0; }
.testata-nome { font-weight: 650; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 50vw; }
.coda { font-size: 12px; font-weight: 650; color: var(--recupero); }
.tempo-totale { font-variant-numeric: tabular-nums; font-weight: 650; color: var(--testo-2); min-width: 52px; text-align: right; }
.link { background: none; border: none; font: inherit; font-weight: 600; color: var(--accento); padding: 6px 0; cursor: pointer; }
.link.termina { display: block; margin: 30px auto 0; color: var(--testo-2); }

.btn.grande { width: 100%; padding: 20px; font-size: 18px; }
.voce-intro + .voce-intro { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--linea); }
.pause { margin-top: 14px; }
.grande-centro { text-align: center; padding: 34px 18px; }
.nome-esercizio { font-size: 28px; font-weight: 750; margin: 0; }
.obiettivo { font-size: 20px; font-weight: 650; color: var(--accento); margin: 10px 0 0; }

.anello {
  --p: 0; --colore: var(--accento);
  width: min(72vw, 280px); aspect-ratio: 1; margin: 28px auto 22px; border-radius: 50%;
  background: conic-gradient(var(--colore) calc(var(--p) * 1turn), var(--superficie-2) 0);
  display: grid; place-items: center; box-shadow: var(--ombra-alta);
}
.anello.pausa { --colore: var(--recupero); }
.anello-interno {
  width: 86%; aspect-ratio: 1; border-radius: 50%; background: var(--superficie);
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 14px;
}
.timer-numero { font-size: clamp(48px, 15vw, 72px); font-weight: 750; line-height: 1; font-variant-numeric: tabular-nums; }
.timer-etichetta { font-weight: 650; margin-top: 8px; }
.comandi { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.serie-riga { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.serie-n { width: 30px; font-weight: 650; color: var(--testo-2); }
.campo-serie { flex: 1; display: flex; align-items: center; gap: 6px; margin: 0; font-size: 13px; }
.campo-serie input { margin: 0; text-align: center; }
input.sotto { border-color: var(--recupero); background: #FFF3EC; }
.btn.aggiungi { margin-top: 12px; }