/* assets/css/challenges.css */

/* ── XP / Level badge ───────────────────────────────────────── */
.xp-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: .3rem .8rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--text-dim);
}
.xp-badge .lvl {
  font-weight: 700;
  color: var(--accent);
}
.xp-bar-wrap {
  height: 3px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
  margin-top: .3rem;
}
.xp-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  transition: width 1.2s cubic-bezier(.4,0,.2,1);
}

/* ── Challenge cards ────────────────────────────────────────── */
.challenge-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  display: block;
}
.challenge-card:hover { background: var(--bg-2); transform: translateY(-2px); }
.challenge-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}
.challenge-card.daily::before  { background: linear-gradient(90deg, var(--accent), transparent); }
.challenge-card.weekly::before { background: linear-gradient(90deg, var(--accent-2), transparent); }

.challenge-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .25rem .6rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}
.challenge-badge.daily  { background: rgba(255,77,28,.12);  color: var(--accent); }
.challenge-badge.weekly { background: rgba(0,212,255,.12);  color: var(--accent-2); }
.challenge-badge.locked { background: rgba(255,255,255,.05); color: var(--text-muted); }

.difficulty-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}
.difficulty-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--border);
}
.difficulty-dot.on { background: var(--accent); }
.difficulty-dot.on.medium { background: var(--accent-2); }
.difficulty-dot.on.hard   { background: #ff0055; }

/* ── Timer ──────────────────────────────────────────────────── */
.challenge-timer {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--accent-2);
  transition: color .3s;
}
.challenge-timer.warning { color: #f39c12; }
.challenge-timer.danger  { color: var(--accent); animation: timer-pulse .5s ease-in-out infinite; }
@keyframes timer-pulse { 0%,100%{opacity:1} 50%{opacity:.5} }

/* ── Challenge workspace ────────────────────────────────────── */
.challenge-workspace {
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 400px;
}
.workspace-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .7rem 1.2rem;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.workspace-tab {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  padding: .35rem .75rem;
  border: 1px solid transparent;
  border-radius: 2px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.workspace-tab:hover { color: var(--text); border-color: var(--border); }
.workspace-tab.active { border-color: var(--accent); color: var(--accent); background: rgba(255,77,28,.08); }
.workspace-panel { display: none; padding: 1.5rem; }
.workspace-panel.active { display: block; }

/* ── Score reveal ───────────────────────────────────────────── */
.score-reveal {
  text-align: center;
  padding: 3rem 2rem;
  animation: score-in .6s cubic-bezier(.4,0,.2,1);
}
@keyframes score-in { from { opacity:0; transform:scale(.8); } to { opacity:1; transform:scale(1); } }
.score-number {
  font-family: var(--font-display);
  font-size: clamp(4rem,12vw,7rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
}
.score-number.perfect { color: var(--accent-3); }
.score-number.good    { color: var(--accent-2); }
.score-number.ok      { color: #f39c12; }
.score-number.poor    { color: var(--accent); }

/* ── Leaderboard ────────────────────────────────────────────── */
.leaderboard {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.leaderboard-row {
  display: grid;
  grid-template-columns: 40px 1fr auto auto;
  gap: 1rem;
  align-items: center;
  padding: .85rem 1.2rem;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.leaderboard-row:last-child { border-bottom: none; }
.leaderboard-row:hover { background: var(--bg-2); }
.leaderboard-row.me { background: rgba(255,77,28,.06); }
.rank-num {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-muted);
  text-align: center;
}
.rank-num.top1 { color: #ffd700; font-weight: 700; }
.rank-num.top2 { color: #c0c0c0; font-weight: 700; }
.rank-num.top3 { color: #cd7f32; font-weight: 700; }
.avatar-circle {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .6rem;
  font-family: var(--font-mono);
  font-weight: 700;
  flex-shrink: 0;
}
.lb-user { display: flex; align-items: center; gap: .7rem; }
.lb-score {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--accent-2);
  font-weight: 700;
}
.lb-time {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--text-muted);
}

/* ── Sensor / IO panel ──────────────────────────────────────── */
.io-panel {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: .5rem;
}
.io-item {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .7rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.io-label {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .1em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.io-value {
  font-family: var(--font-mono);
  font-size: .95rem;
  font-weight: 700;
}
.io-value.ok    { color: var(--accent-3); }
.io-value.fault { color: var(--accent); }
.io-value.warn  { color: #f39c12; }
.io-value.off   { color: var(--text-muted); }

/* ── Alarm list ─────────────────────────────────────────────── */
.alarm-list { display: flex; flex-direction: column; gap: .4rem; }
.alarm-item {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .6rem 1rem;
  background: rgba(255,77,28,.07);
  border: 1px solid rgba(255,77,28,.2);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--accent);
  animation: alarm-in .3s ease;
}
@keyframes alarm-in { from{opacity:0;transform:translateX(-8px)} to{opacity:1;transform:none} }
.alarm-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 1s ease-in-out infinite;
  flex-shrink: 0;
}

/* ── Collab cursors ─────────────────────────────────────────── */
.collab-cursor {
  position: fixed;
  pointer-events: none;
  z-index: 9000;
  transform: translate(-2px, -2px);
  transition: left .1s linear, top .1s linear;
}
.collab-cursor svg { width: 20px; height: 20px; filter: drop-shadow(0 2px 4px rgba(0,0,0,.5)); }
.collab-cursor-label {
  position: absolute;
  left: 18px; top: 0;
  font-family: var(--font-mono);
  font-size: .6rem;
  padding: 2px 6px;
  border-radius: 2px;
  white-space: nowrap;
  color: #000;
}

/* ── Weekly workspace collab ────────────────────────────────── */
.collab-bar {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .6rem 1.2rem;
  background: rgba(0,212,255,.05);
  border-bottom: 1px solid rgba(0,212,255,.15);
  font-family: var(--font-mono);
  font-size: .65rem;
  color: var(--accent-2);
  flex-wrap: wrap;
}
.collab-avatar {
  width: 24px; height: 24px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .55rem;
  font-weight: 700;
  border: 1.5px solid;
}

/* ── Auth forms ─────────────────────────────────────────────── */
.auth-card {
  max-width: 420px;
  margin: 0 auto;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: .75rem;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* ── Category selector ─────────────────────────────────────── */
.cat-pill {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .3rem .8rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.cat-pill:hover, .cat-pill.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255,77,28,.08);
}

/* ── Countdown ring ─────────────────────────────────────────── */
.countdown-ring { position: relative; display: inline-block; }
.countdown-ring svg { transform: rotate(-90deg); }
.countdown-ring circle { transition: stroke-dashoffset 1s linear; }
.countdown-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: .75rem;
}

/* ── Hint system ────────────────────────────────────────────── */
.hint-lock {
  background: var(--bg-3);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
  font-size: .82rem;
  color: var(--text-muted);
}
.hint-lock:hover { border-color: var(--accent); color: var(--text); }
.hint-lock::before { content: '🔒 '; }
.hint-revealed {
  background: rgba(0,212,255,.04);
  border: 1px solid rgba(0,212,255,.15);
  border-radius: var(--radius);
  padding: 1rem;
  font-size: .85rem;
  animation: hint-in .4s ease;
}
@keyframes hint-in { from{opacity:0;transform:translateY(-4px)} to{opacity:1;transform:none} }

/* ── Weekly prize banner ────────────────────────────────────── */
.prize-banner {
  background: linear-gradient(135deg, rgba(255,77,28,.1), rgba(0,212,255,.08));
  border: 1px solid rgba(255,77,28,.25);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}
.prize-icon { font-size: 2rem; flex-shrink: 0; }
.prize-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .9rem;
}
.prize-sub {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: .2rem;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width:700px) {
  .challenge-card { padding: 1.4rem; }
  .leaderboard-row { grid-template-columns: 32px 1fr auto; }
  .lb-time { display: none; }
  .io-panel { grid-template-columns: 1fr 1fr; }
}