/* ------------------------------------------------------------------
   Design system della piattaforma RSVP – Istituto Marymount
   Stessa identità visiva del sistema "Attività Pomeridiane".
   ------------------------------------------------------------------ */

:root {
  --navy: #204660;
  --navy-dark: #17344a;
  --accent: #1e73be;
  --bg: #f7f7f7;
  --card: #ffffff;
  --text: #26333c;
  --text-2: #64707a;
  --green: #1d7d4f;
  --amber: #a35c00;
  --red: #b30000;
  --border: rgba(32, 70, 96, 0.12);
  --radius: 18px;
  --sans: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.5;
}

.hidden { display: none !important; }
.muted { color: var(--text-2); }
.center { text-align: center; }
a { color: var(--navy); }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(32, 70, 96, 0.94);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
}
.nav {
  max-width: 1180px; margin: 0 auto; padding: 0 22px; height: 58px;
  display: flex; align-items: center; gap: 12px;
}
.nav img { width: 34px; height: 34px; border-radius: 50%; flex: none; }
.nav .brand {
  font-size: 16px; font-weight: 800; letter-spacing: 0.06em;
  text-transform: uppercase; color: #fff;
}
.nav .tag {
  font-size: 12px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.6); border-left: 1px solid rgba(255,255,255,0.25); padding-left: 12px;
}
.nav .who { margin-left: auto; color: rgba(255,255,255,0.75); font-size: 13.5px; }
.nav .who button {
  border: none; background: rgba(255,255,255,0.14); color: #fff; cursor: pointer;
  font: inherit; font-size: 12.5px; font-weight: 700; border-radius: 980px;
  padding: 5px 13px; margin-left: 10px;
}
.nav .who button:hover { background: rgba(255,255,255,0.25); }

/* ---------- Tabs ---------- */
.tabbar { background: var(--navy-dark); padding: 0 22px 14px; }
.tabbar-inner { max-width: 1180px; margin: 0 auto; display: flex; }
.segmented {
  display: inline-flex; gap: 2px; background: #fff; border-radius: 980px; padding: 4px;
  box-shadow: 0 8px 24px rgba(16, 39, 58, 0.18); overflow-x: auto; max-width: 100%;
  scrollbar-width: none;
}
.segmented::-webkit-scrollbar { display: none; }
.segmented button {
  border: none; background: transparent; cursor: pointer; font: inherit;
  font-size: 14px; font-weight: 600; color: var(--text);
  padding: 8px 20px; border-radius: 980px; white-space: nowrap; transition: all 0.25s;
}
.segmented button.active { background: var(--navy); color: #fff; }

/* ---------- Layout ---------- */
main { max-width: 1180px; margin: 0 auto; padding: 24px 22px 80px; }
main.narrow { max-width: 720px; }

.card {
  background: var(--card); border: 1px solid rgba(32,70,96,0.07); border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(16,39,58,0.05); padding: 24px; margin-bottom: 18px;
}
h2 {
  font-size: 20px; font-weight: 800; color: var(--navy); letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 12px;
}
h2::after { content: ""; flex: 1; height: 1px; background: var(--border); }
h3 { font-size: 16px; font-weight: 800; color: var(--navy); }
.card-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 18px; }
.card-head h2 { flex: 1; min-width: 200px; }
.sub { color: var(--text-2); font-size: 13.5px; margin-top: -8px; margin-bottom: 16px; }

/* ---------- Bottoni ---------- */
.btn {
  border: none; cursor: pointer; font: inherit; font-size: 14px; font-weight: 600;
  background: var(--navy); color: #fff; border-radius: 980px; padding: 9px 20px;
  transition: background 0.2s, transform 0.15s; white-space: nowrap;
}
.btn:hover { background: var(--navy-dark); }
.btn:active { transform: scale(0.98); }
.btn:disabled { background: #d5dade; color: #8a949c; cursor: not-allowed; }
.btn.ghost { background: rgba(32,70,96,0.07); color: var(--navy); }
.btn.ghost:hover { background: rgba(32,70,96,0.13); }
.btn.danger { background: rgba(179,0,0,0.09); color: var(--red); }
.btn.danger:hover { background: rgba(179,0,0,0.16); }
.btn.green { background: var(--green); }
.btn.green:hover { background: #17633e; }
.btn.sm { font-size: 12.5px; padding: 6px 13px; }
.btn.lg { font-size: 16px; padding: 13px 30px; }
.btn.block { display: block; width: 100%; }

.icon-btn {
  border: none; cursor: pointer; background: rgba(32,70,96,0.07); color: var(--navy);
  width: 32px; height: 32px; border-radius: 9px; font-size: 14px; line-height: 1;
  transition: background 0.2s;
}
.icon-btn:hover { background: rgba(32,70,96,0.14); }
.icon-btn.danger { background: rgba(179,0,0,0.08); color: var(--red); }
.icon-btn.danger:hover { background: rgba(179,0,0,0.16); }

/* ---------- Form ---------- */
.field { margin-bottom: 14px; }
.field label, .flabel { display: block; font-size: 12.5px; font-weight: 700; margin-bottom: 5px; color: var(--navy); }
input[type="text"], input[type="email"], input[type="number"], input[type="tel"],
input[type="date"], input[type="datetime-local"], input[type="search"], select, textarea {
  width: 100%; font: inherit; font-size: 15px; background: var(--bg); color: var(--text);
  border: 1px solid transparent; border-radius: 12px; padding: 10px 13px; outline: none;
  transition: border-color 0.2s, background 0.2s; appearance: none; -webkit-appearance: none;
}
textarea { resize: vertical; min-height: 90px; line-height: 1.55; }
select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%236e6e73' stroke-width='1.8' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat; background-position: right 13px center; padding-right: 36px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3.5px rgba(30,115,190,0.16);
}
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.hint { font-size: 12px; color: var(--text-2); margin-top: 5px; }
.required { color: var(--red); }

.switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; cursor: pointer; }
.switch input { width: 18px; height: 18px; accent-color: var(--navy); flex: none; }

.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips label {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  background: var(--bg); border: 1px solid transparent; border-radius: 980px;
  padding: 6px 13px; font-size: 13px; font-weight: 600; transition: all 0.2s;
}
.chips label:has(input:checked) { background: var(--navy); color: #fff; }
.chips input { accent-color: #fff; width: 14px; height: 14px; }

.choice { display: flex; flex-wrap: wrap; gap: 8px; }
.choice label { position: relative; }
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.choice span {
  display: inline-block; cursor: pointer; font-size: 13.5px; font-weight: 600;
  padding: 8px 16px; border-radius: 980px; background: var(--bg); transition: all 0.2s;
}
.choice input:checked + span { background: var(--navy); color: #fff; }
.choice input:focus-visible + span { box-shadow: 0 0 0 3px rgba(30,115,190,0.3); }

/* ---------- Tabelle ---------- */
.table-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border); }
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data th {
  background: #f2f5f7; font-size: 11px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-2); text-align: left; padding: 11px 13px;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.data td { padding: 12px 13px; border-bottom: 1px solid rgba(32,70,96,0.07); vertical-align: middle; }
table.data tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: #fafbfc; }
table.data .name { font-weight: 700; color: var(--navy); }
.empty-row td { text-align: center; color: var(--text-2); padding: 34px 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 5px; }

/* ---------- Badge e banner ---------- */
.badge { display: inline-block; padding: 3px 11px; border-radius: 980px; font-size: 11.5px; font-weight: 700; white-space: nowrap; }
.badge.yes, .badge.open { color: var(--green); background: rgba(29,125,79,0.11); }
.badge.no, .badge.closed { color: var(--red); background: rgba(179,0,0,0.09); }
.badge.pending, .badge.draft { color: var(--text-2); background: rgba(32,70,96,0.08); }
.badge.waitlist, .badge.full { color: var(--amber); background: rgba(163,92,0,0.11); }
.badge.accent { color: var(--accent); background: rgba(30,115,190,0.11); }

.banner {
  display: none; border-radius: 14px; padding: 13px 18px; margin-bottom: 16px;
  font-size: 14px; font-weight: 600;
}
.banner.ok { background: rgba(29,125,79,0.10); color: var(--green); }
.banner.err { background: rgba(179,0,0,0.08); color: var(--red); }
.banner.warn { background: rgba(163,92,0,0.11); color: var(--amber); }

/* ---------- Statistiche ---------- */
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); margin-bottom: 18px; }
.stat { background: var(--bg); border-radius: 14px; padding: 15px 18px; }
.stat .v { font-size: 26px; font-weight: 800; color: var(--navy); line-height: 1.1; }
.stat .l { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-2); margin-top: 3px; }
.stat.green .v { color: var(--green); }
.stat.red .v { color: var(--red); }
.stat.amber .v { color: var(--amber); }

.bar { height: 8px; border-radius: 999px; background: rgba(32,70,96,0.10); overflow: hidden; margin-top: 10px; }
.bar > i { display: block; height: 100%; background: var(--navy); border-radius: 999px; transition: width 0.4s; }
.bar > i.warn { background: var(--amber); }
.bar > i.full { background: var(--red); }

/* ---------- Login ---------- */
.login {
  min-height: 100dvh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-dark) 100%); padding: 24px;
}
.login .box { text-align: center; color: #fff; max-width: 380px; }
.login img { width: 96px; height: 96px; border-radius: 50%; margin-bottom: 22px; box-shadow: 0 6px 22px rgba(0,0,0,0.28); }
.login h1 { font-size: 27px; font-weight: 800; letter-spacing: -0.01em; }
.login p { color: rgba(255,255,255,0.72); margin-top: 8px; margin-bottom: 26px; font-weight: 300; }
.login .btn { background: #fff; color: var(--navy); padding: 12px 30px; font-size: 15px; }
.login .btn:hover { background: #e8eef3; }
.login .err { display: none; margin-top: 16px; font-size: 13.5px; color: #ffc9c9; background: rgba(0,0,0,0.2); border-radius: 12px; padding: 11px 15px; }

/* ---------- Modali (bottom sheet) ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,0.42);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  display: none; align-items: flex-end; justify-content: center; opacity: 0; transition: opacity 0.3s;
}
.overlay.show { display: flex; }
.overlay.visible { opacity: 1; }
.sheet {
  background: #fff; width: 100%; max-width: 640px; max-height: 92dvh; overflow-y: auto;
  border-radius: 22px 22px 0 0; padding: 26px 24px 34px;
  transform: translateY(40px); opacity: 0;
  transition: transform 0.38s cubic-bezier(0.2, 0.9, 0.25, 1), opacity 0.3s;
}
.overlay.visible .sheet { transform: translateY(0); opacity: 1; }
@media (min-width: 700px) {
  .overlay { align-items: center; padding: 24px; }
  .sheet { border-radius: 22px; padding: 30px 32px 32px; }
  .sheet.wide { max-width: 860px; }
}
.sheet-head { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 18px; }
.sheet-head h3 { font-size: 20px; line-height: 1.25; }
.sheet-head p { font-size: 13.5px; color: var(--text-2); margin-top: 3px; }
.close-x {
  margin-left: auto; flex: none; border: none; cursor: pointer; width: 32px; height: 32px;
  border-radius: 50%; background: rgba(0,0,0,0.06); color: var(--text-2); font-size: 15px; font-weight: 700;
}
.close-x:hover { background: rgba(0,0,0,0.11); }
.sheet-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.sheet-actions .spacer { flex: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav { height: auto; min-height: 54px; padding: 9px 14px; gap: 9px; }
  .nav .tag { display: none; }
  .nav .brand { font-size: 13.5px; letter-spacing: 0.04em; }
  .nav .who { font-size: 11px; }
  .tabbar { padding: 0 14px 12px; }
  main { padding: 18px 14px 70px; }
  .card { padding: 18px 16px; }
}