/* ═══════════════════════════════════════════════════════════
   TOSSConf 2026 — QR Scanner Styles
   Dark glassmorphism + vibrant accent palette
   ═══════════════════════════════════════════════════════════ */

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

:root {
  --bg:        #0a0e1a;
  --surface:   #111827;
  --surface2:  #1a2235;
  --glass:     rgba(255,255,255,0.05);
  --border:    rgba(255,255,255,0.08);

  --accent:    #6c63ff;
  --accent2:   #00d4aa;
  --success:   #22c55e;
  --warning:   #f59e0b;
  --error:     #ef4444;
  --info:      #3b82f6;

  --text:      #f1f5f9;
  --text-muted:#94a3b8;
  --text-dim:  #64748b;

  --radius:    16px;
  --radius-sm: 8px;
  --shadow:    0 25px 60px rgba(0,0,0,0.5);
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Header ───────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,14,26,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
}
.header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 0.75rem; }
.logo-icon { font-size: 2rem; }
.logo-title { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; }
.logo-year  { color: var(--accent); }
.logo-sub   { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.08em; text-transform: uppercase; }

.btn-dash {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
}
.btn-dash:hover { background: var(--accent); border-color: var(--accent); }

/* ── Day Bar ──────────────────────────────────────────────── */
.day-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  max-width: 100%;
}
.day-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; white-space: nowrap; }
.day-pills { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.day-pill {
  padding: 0.35rem 0.9rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}
.day-pill:hover  { border-color: var(--accent); color: var(--accent); }
.day-pill.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.current-day-badge {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent2);
  background: rgba(0,212,170,0.1);
  border: 1px solid rgba(0,212,170,0.2);
  padding: 0.25rem 0.7rem;
  border-radius: 50px;
}

/* ── Volunteer Row ────────────────────────────────────────── */
.volunteer-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  max-width: 640px;
  margin: 0 auto;
}
.volunteer-row label { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; }
.volunteer-row input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
}
.volunteer-row input:focus { border-color: var(--accent); }
.volunteer-row input::placeholder { color: var(--text-dim); }

/* ── Main ─────────────────────────────────────────────────── */
.main {
  max-width: 640px;
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Scanner Wrapper ──────────────────────────────────────── */
.scanner-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

#video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── Camera Prompt ────────────────────────────────────────── */
.camera-prompt {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  z-index: 10;
  text-align: center;
  padding: 2rem;
}
.camera-icon { font-size: 3.5rem; animation: pulse 2s ease-in-out infinite; }
.camera-prompt h2 { font-size: 1.5rem; font-weight: 700; }
.camera-prompt p  { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

.btn-start {
  padding: 0.75rem 2rem;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 8px 24px rgba(108,99,255,0.4);
  font-family: var(--font);
}
.btn-start:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(108,99,255,0.5); }
.btn-start:active { transform: translateY(0); }

/* ── Scan Overlay ─────────────────────────────────────────── */
.scan-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.scan-frame {
  position: relative;
  width: 55%;
  aspect-ratio: 1;
  max-width: 240px;
}
.corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--accent2);
  border-style: solid;
}
.corner.tl { top: 0; left: 0;  border-width: 3px 0 0 3px; border-radius: 4px 0 0 0; }
.corner.tr { top: 0; right: 0; border-width: 3px 3px 0 0; border-radius: 0 4px 0 0; }
.corner.bl { bottom: 0; left: 0;  border-width: 0 0 3px 3px; border-radius: 0 0 0 4px; }
.corner.br { bottom: 0; right: 0; border-width: 0 3px 3px 0; border-radius: 0 0 4px 0; }

.scan-line {
  position: absolute;
  left: 4px; right: 4px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent2), transparent);
  top: 0;
  box-shadow: 0 0 8px var(--accent2);
}
.scan-line.animate {
  animation: scanMove 2s ease-in-out infinite;
}
@keyframes scanMove {
  0%   { top: 4px; }
  50%  { top: calc(100% - 4px); }
  100% { top: 4px; }
}

.scan-hint {
  margin-top: 1.5rem;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
  text-align: center;
  padding: 0 1rem;
}

/* ── Result Overlay ───────────────────────────────────────── */
.result-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  z-index: 20;
  padding: 1rem;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  width: 100%;
  max-width: 340px;
  animation: slideUp 0.3s cubic-bezier(.22,.61,.36,1);
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.result-card.success { border-color: var(--success); box-shadow: 0 0 40px rgba(34,197,94,0.2); }
.result-card.duplicate { border-color: var(--warning); box-shadow: 0 0 40px rgba(245,158,11,0.2); }
.result-card.error { border-color: var(--error); box-shadow: 0 0 40px rgba(239,68,68,0.2); }

.result-icon   { font-size: 3rem; margin-bottom: 0.5rem; }
.result-title  { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.4rem; }
.result-message { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; line-height: 1.5; }

.result-details {
  background: var(--surface2);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  margin-bottom: 1rem;
  text-align: left;
}
.att-chip {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  margin-bottom: 0.4rem;
}
.att-name   { font-weight: 700; font-size: 1rem; margin-bottom: 0.2rem; }
.att-email  { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.2rem; }
.att-ticket { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); }

.btn-scan-again {
  width: 100%;
  padding: 0.6rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.2s;
}
.btn-scan-again:hover { background: var(--accent); border-color: var(--accent); }

/* ── Status Strip ─────────────────────────────────────────── */
.status-strip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.idle       { background: var(--text-dim); }
.status-dot.loading    { background: var(--warning); animation: pulse 1s infinite; }
.status-dot.active     { background: var(--success); animation: pulse 2s infinite; }
.status-dot.processing { background: var(--accent); animation: pulse 0.8s infinite; }
.status-dot.error      { background: var(--error); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── Recent Scans ─────────────────────────────────────────── */
.recent-scans {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}
.recent-scans h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
#recentList { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.empty-state { font-size: 0.8rem; color: var(--text-dim); text-align: center; padding: 0.75rem 0; }

.scan-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--surface2);
  border-left: 3px solid transparent;
  font-size: 0.8rem;
}
.scan-item.success { border-left-color: var(--success); }

.scan-name { flex: 1; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.scan-time { font-family: var(--mono); font-size: 0.7rem; color: var(--text-muted); white-space: nowrap; }
.scan-cat  { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; padding: 0.15rem 0.5rem; border-radius: 50px; white-space: nowrap; }

/* ── Category Color System ────────────────────────────────── */
.cat-general, .cat-border-general, .cat-tag.cat-general, .scan-cat.cat-general,
.att-chip.cat-general, .inline-cat.cat-general, .cat-chip.cat-general {
  background: rgba(59,130,246,0.15); color: #60a5fa; border: 1px solid rgba(59,130,246,0.3);
}
.cat-speaker, .cat-border-speaker, .cat-tag.cat-speaker, .scan-cat.cat-speaker,
.att-chip.cat-speaker, .inline-cat.cat-speaker, .cat-chip.cat-speaker {
  background: rgba(168,85,247,0.15); color: #c084fc; border: 1px solid rgba(168,85,247,0.3);
}
.cat-community, .cat-border-community, .cat-tag.cat-community, .scan-cat.cat-community,
.att-chip.cat-community, .inline-cat.cat-community, .cat-chip.cat-community {
  background: rgba(0,212,170,0.15); color: #34d399; border: 1px solid rgba(0,212,170,0.3);
}