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

:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --danger: #dc2626;
  --text: #1e293b;
  --muted: #64748b;
  --green-bg: #f0fdf4;
  --green-border: #86efac;
  --radius: 14px;
  --shadow: 0 2px 20px rgba(0,0,0,.09);
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 16px;
}

/* ── Header ── */
header {
  background: var(--surface);
  padding: .9rem 1.5rem;
  box-shadow: 0 1px 8px rgba(0,0,0,.07);
  position: sticky; top: 0; z-index: 10;
}
.logo {
  text-decoration: none;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--primary);
  letter-spacing: -.02em;
}

main { padding: 2rem 1rem; }

/* ── Card ── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  margin-bottom: 1.5rem;
}
.center { max-width: 500px; margin-inline: auto; }

/* ── Home hero ── */
.hero-icon { font-size: 3.5rem; text-align: center; margin-bottom: .5rem; }
h1 { font-size: 1.7rem; font-weight: 800; margin-bottom: .4rem; text-align: center; }
.subtitle { color: var(--muted); text-align: center; margin-bottom: 1.5rem; }

/* ── Forms ── */
label { display: block; margin-bottom: .4rem; font-weight: 600; font-size: .95rem; }
input[type=text] {
  width: 100%; padding: .65rem 1rem;
  border: 1.5px solid #cbd5e1; border-radius: 10px;
  font-size: 1rem; margin-bottom: 1rem;
  transition: border-color .2s, box-shadow .2s;
  background: #f8fafc;
}
input[type=text]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px #e0e7ff;
  background: #fff;
}
.hint { color: var(--muted); font-weight: 400; font-size: .85em; }

/* ── Buttons ── */
.btn-primary, .btn-secondary, .btn-danger {
  display: block; width: 100%;
  padding: .75rem 1.4rem;
  border: none; border-radius: 10px; cursor: pointer;
  font-size: 1rem; font-weight: 700; text-decoration: none;
  text-align: center; transition: background .18s, transform .1s;
}
.btn-primary  { background: var(--primary);  color: #fff; margin-top: .5rem; }
.btn-primary:hover  { background: var(--primary-dark); }
.btn-primary:active { transform: scale(.98); }
.btn-secondary { background: #e2e8f0; color: var(--text); margin-top: .5rem; }
.btn-secondary:hover { background: #cbd5e1; }
.btn-danger   { background: var(--danger); color: #fff; }
.btn-danger:hover   { background: #b91c1c; }
button:disabled, .btn-primary:disabled { opacity: .5; cursor: not-allowed; pointer-events: none; }

/* ── PM layout ── */
.pm-layout {
  display: grid;
  gap: 1.5rem;
  max-width: 1200px;
  margin-inline: auto;
}
@media (min-width: 768px) {
  .pm-layout { grid-template-columns: 360px 1fr; align-items: start; }
}

h2 { font-size: 1.4rem; font-weight: 800; margin-bottom: .3rem; }
h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem; }
.counter { font-weight: 400; color: var(--muted); font-size: .95rem; }

.votes-progress-wrap {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  padding: .75rem .9rem;
  margin-bottom: 1rem;
}
.votes-progress-label {
  font-size: .92rem;
  color: var(--muted);
  margin-bottom: .45rem;
}
.votes-progress {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}
.votes-progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #4f46e5, #22c55e);
  transition: width .25s ease;
}

.qr-block { text-align: center; margin: 1.2rem 0; }
.qr-img {
  width: 190px; height: 190px;
  display: inline-block;
  border-radius: 10px;
  border: 3px solid #e2e8f0;
}
.session-url {
  font-size: .78rem; word-break: break-all;
  color: var(--muted); margin-top: .5rem;
}
.session-url a { color: var(--primary); }
.session-id { color: var(--muted); font-size: .8rem; margin-bottom: .5rem; }

.pm-actions { display: flex; flex-direction: column; gap: .8rem; margin-top: 1.2rem; }

.reset-form summary {
  cursor: pointer; color: var(--primary);
  font-weight: 600; font-size: .95rem;
  padding: .4rem 0;
  list-style: none;
}
.reset-form summary::before { content: "▸ "; }
details[open] summary::before { content: "▾ "; }
.reset-form input { margin-top: .7rem; }

/* ── Participants list ── */
#participants-list {
  list-style: none;
  display: flex; flex-direction: column; gap: .5rem;
  max-height: 65vh; overflow-y: auto;
}
.participant {
  display: flex; justify-content: space-between; align-items: center;
  padding: .65rem 1rem; border-radius: 10px;
  background: #f8fafc; border: 1.5px solid #e2e8f0;
  transition: background .3s, border-color .3s;
}
.participant.voted { background: var(--green-bg); border-color: var(--green-border); }
.username { font-weight: 600; }
.vote-badge { font-size: 1.2rem; }
.reveal {
  font-size: 1.4rem;
  color: var(--primary);
  animation: pop .3s ease;
}
@keyframes pop {
  0%   { transform: scale(0); opacity: 0; }
  70%  { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}
.waiting { opacity: .5; }
.empty-hint { color: var(--muted); font-size: .9rem; margin-top: .5rem; text-align: center; }

.vote-summary {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed #cbd5e1;
}
.vote-summary h4 {
  font-size: 1rem;
  margin-bottom: .6rem;
}
.vote-summary-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.vote-summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .45rem .7rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
}
.summary-estimate {
  font-size: 1.1rem;
  font-weight: 700;
}
.summary-count {
  color: var(--muted);
  font-size: .9rem;
}

/* ── Estimate grid (dev view) ── */
.you-are { margin-bottom: .8rem; color: var(--muted); }
.label { font-weight: 700; margin-bottom: .5rem; }

.estimate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: .55rem;
  margin: .5rem 0 1.2rem;
}
.estimate-card {
  display: flex; align-items: center; justify-content: center;
  height: 72px; border-radius: 12px;
  border: 2px solid #e2e8f0; background: #f8fafc;
  cursor: pointer; font-size: 1.5rem; font-weight: 800;
  transition: border-color .15s, background .15s, transform .1s, box-shadow .15s;
  user-select: none; -webkit-tap-highlight-color: transparent;
}
.estimate-card input { display: none; }
.estimate-card:hover { border-color: var(--primary); background: #eef2ff; }
.estimate-card.selected,
.estimate-card:has(input:checked) {
  border-color: var(--primary);
  background: #eef2ff;
  transform: scale(1.08);
  box-shadow: 0 0 0 4px #c7d2fe;
}

.voted-confirm {
  background: var(--green-bg);
  border: 1.5px solid var(--green-border);
  border-radius: 10px;
  padding: .65rem 1rem;
  margin-top: 1rem;
  font-size: .9rem;
}

/* ── Info banners ── */
.info-banner {
  background: #fef3c7; border: 1.5px solid #fcd34d;
  border-radius: 10px; padding: .7rem 1rem;
  margin: .8rem 0; font-weight: 600; font-size: .95rem;
}