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

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

body {
  margin: 0;
  padding: 16px;
  padding-bottom: 180px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont;
  background: #f2f4f8;
  color: #111;
  max-width: 520px;
  margin-inline: auto;
}

body.modal-open {
  overflow: hidden;
}

/* ================= HEADER ================= */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.logo { display: none; }
.logo-horizontal { display: block; height: 30px; }

@media (max-width:480px){
  .logo-horizontal { display:none }
  .logo-small { display:block; height:26px }
}

.user-name {
  font-size:14px;
  color:#6b7280;
}

/* ⚠️ ORIGINAL: Header-Buttons bewusst schlicht */
.app-header button {
  background:none;
  border:none;
  font-size:14px;
  color:#6b7280;
}

/* ================= CARDS ================= */
.card {
  background:#fff;
  border-radius:16px;
  padding:16px;
  margin-bottom:16px;
  box-shadow:0 8px 20px rgba(0,0,0,.05);
}

.card.muted { opacity:.55 }

.today-card {
  box-shadow:0 12px 30px rgba(0,0,0,.1);
}

/* ================= TODAY ================= */
.today-block { margin-bottom:16px }

.today-label {
  font-weight:500;
}

.today-label.active {
  font-weight:700;
}

.last-entry {
  font-size:12px;
  color:#6b7280;
  margin-top:4px;
}

.bar {
  margin-top:6px;
  height:8px;
  background:#e5e7eb;
  border-radius:999px;
  overflow:hidden;
}

.fill {
  height:100%;
  width:0%;
  transition:width .6s ease, background .3s;
}

.fill.red { background:#ef4444 }
.fill.yellow { background:#facc15 }
.fill.green { background:#22c55e }

/* ================= WEEK ================= */
#weekChart,#lastWeekChart{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  gap:8px;
}

.week-day {
  font-size:11px;
  text-align:center;
}

.week-day.today{
  outline:2px solid #3b82f6;
  border-radius:8px;
}

.week-bar{
  height:6px;
  background:#e5e7eb;
  border-radius:999px;
  overflow:hidden;
}

.week-fill{
  height:100%;
  width:0%;
  transition:width .4s ease;
}

.week-fill.noah { background:#3b82f6 }
.week-fill.max  { background:#22c55e }

/* ================= SAVEBAR ================= */
.savebar{
  position:fixed;
  left:12px;
  right:12px;
  bottom:12px;
  display:flex;
  gap:10px;
  padding:14px;
  padding-bottom:calc(14px + env(safe-area-inset-bottom));
  background:#fff;
  border-radius:22px;
  box-shadow:0 12px 30px rgba(0,0,0,.18);
}

.savebar.hidden{ display:none }

.savebar input{
  width:90px;
  padding:14px;
  font-size:16px;
  border-radius:14px;
  border:1px solid #d1d5db;
}

.savebar input.flash {
  background:#dcfce7;
}

.savebar button{
  padding:14px;
  border:none;
  border-radius:14px;
  background:#111;
  color:#fff;
}

#undoBtn{
  background:#e5e7eb;
  color:#111;
  opacity:.3;
  transition:opacity .3s;
}

/* ================= LOGIN ================= */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  isolation: isolate;
}

.login-card{
  background:#fff;
  padding:20px;
  border-radius:18px;
  width:90%;
  max-width:320px;
}

.login-card input{
  width:100%;
  padding:14px;
  margin-bottom:10px;
  font-size:16px;
  border-radius:14px;
  border:1px solid #d1d5db;
}

.login-card button{
  width:100%;
  padding:14px;
  border:none;
  border-radius:14px;
  background:#111;
  color:#fff;
}

/* ================= CONFETTI ================= */
#confetti{
  position:fixed;
  inset:0;
  pointer-events:none;
}