/* ═══════════════════ PROTOCOL DEMOS CSS ═══════════════════ */

/* ── Hero ─────────────────────────────────── */
.proto-hero {
  padding: 140px 32px 60px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(245,158,11,0.06) 0%, transparent 60%);
}
.proto-hero-tag {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 500;
}
.proto-hero-title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
}
.proto-hero-desc {
  max-width: 720px;
  margin: 0 auto 32px;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.7;
}
.proto-hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
}
.proto-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.proto-stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--mono);
}
.proto-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── Tab Bar ──────────────────────────────── */
.proto-tabs-section {
  padding: 0 32px 80px;
}
.proto-tab-bar {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 32px;
  overflow-x: auto;
  scrollbar-width: none;
}
.proto-tab-bar::-webkit-scrollbar { display: none; }
.proto-tab {
  flex: 1;
  min-width: 80px;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}
.proto-tab:hover {
  color: var(--text-dim);
  background: var(--accent-dim);
}
.proto-tab.active {
  color: var(--text);
  background: var(--accent);
}

/* ── Panel ─────────────────────────────────── */
.proto-panel {
  display: none;
  animation: protoPanelIn 0.3s ease;
}
.proto-panel.active { display: block; }
@keyframes protoPanelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.proto-panel-header {
  margin-bottom: 32px;
}
.proto-panel-header h2 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.proto-panel-header p {
  color: var(--text-dim);
  font-size: 0.92rem;
  max-width: 800px;
  line-height: 1.6;
}

/* ── Badges ────────────────────────────────── */
.proto-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.proto-badge.playable { background: rgba(52,211,153,0.12); color: #34d399; border: 1px solid rgba(52,211,153,0.2); }
.proto-badge.ingest { background: rgba(251,191,36,0.12); color: #fbbf24; border: 1px solid rgba(251,191,36,0.2); }
.proto-badge.emerging { background: var(--teal-dim); color: var(--teal); border: 1px solid rgba(13,148,136,0.2); }
.proto-badge.legacy { background: rgba(248,113,113,0.12); color: #f87171; border: 1px solid rgba(248,113,113,0.2); }
.proto-badge.professional { background: rgba(251,146,60,0.12); color: #fb923c; border: 1px solid rgba(251,146,60,0.2); }
.proto-badge.broadcast { background: rgba(96,165,250,0.12); color: #60a5fa; border: 1px solid rgba(96,165,250,0.2); }

/* ── Split Layout ──────────────────────────── */
.proto-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 900px) {
  .proto-split { grid-template-columns: 1fr; }
}
.proto-player-col h3,
.proto-diagram-col h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* ── Player ────────────────────────────────── */
.proto-player-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 12px;
}
.proto-video {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  display: block;
}
.proto-player-status {
  padding: 10px 16px;
  font-size: 0.8rem;
  color: var(--text-dim);
  background: var(--bg-input);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
}

/* ── Info button + Meta banner ──────────────── */
.proto-player-wrap { position: relative; }

.proto-info-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 10;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.45);
  background: rgba(0,0,0,0.45);
  color: rgba(255,255,255,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 0;
  line-height: 1;
}
.proto-info-btn:hover {
  background: rgba(245,158,11,0.65);
  border-color: rgba(245,158,11,0.9);
  transform: scale(1.08);
}
.proto-info-btn.active {
  background: rgba(245,158,11,0.85);
  border-color: rgba(245,158,11,1);
}
.proto-info-btn svg {
  flex-shrink: 0;
}

.proto-meta-banner {
  position: absolute;
  bottom: 38px;
  left: 0;
  right: 0;
  height: 32px;
  background: linear-gradient(90deg, rgba(0,0,0,0.72) 0%, rgba(10,10,30,0.82) 100%);
  border-top: 1px solid rgba(245,158,11,0.25);
  overflow: hidden;
  z-index: 8;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.proto-meta-banner.visible {
  opacity: 1;
  pointer-events: auto;
}

.proto-meta-track {
  display: flex;
  width: max-content;
  height: 100%;
  align-items: center;
  animation: meta-scroll 18s linear infinite;
}
.proto-meta-banner.visible .proto-meta-track {
  animation-play-state: running;
}
.proto-meta-banner.hold .proto-meta-track {
  animation-play-state: paused;
}

.proto-meta-text {
  white-space: nowrap;
  padding: 0 28px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.88);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.proto-meta-text .meta-sep {
  color: rgba(245,158,11,0.6);
  margin: 0 2px;
}
.proto-meta-text .meta-label {
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.65rem;
}
.proto-meta-text .meta-val {
  color: rgba(245,158,11,0.95);
  font-weight: 500;
}

@keyframes meta-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.proto-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.proto-select, .proto-input {
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.82rem;
  font-family: var(--mono);
  outline: none;
}
.proto-select:focus, .proto-input:focus {
  border-color: var(--accent);
}
.proto-input {
  flex: 1;
  min-width: 200px;
}
.proto-btn {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
  white-space: nowrap;
}
.proto-btn:hover { border-color: var(--accent); color: var(--accent); }
.proto-btn.primary { background: var(--accent); color: #0a0e1a; border-color: var(--accent); }
.proto-btn.primary:hover { background: var(--accent-glow); }
.proto-btn.danger { border-color: #f87171; color: #f87171; }
.proto-btn.danger:hover { background: rgba(248,113,113,0.1); }
.proto-stats-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.proto-stat-item {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--mono);
}
.proto-stat-item span { color: var(--accent2); }
.proto-url-box {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.proto-url-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.proto-url-box code {
  font-size: 0.82rem;
  background: none;
  padding: 0;
}

/* ── Diagram ───────────────────────────────── */
.proto-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.diagram-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.diagram-node {
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  min-width: 100px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.diagram-sub {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-dim);
  margin-top: 4px;
}
.diagram-node.source { background: rgba(96,165,250,0.1); border-color: rgba(96,165,250,0.2); color: #60a5fa; }
.diagram-node.process { background: var(--accent-dim); border-color: rgba(245,158,11,0.2); color: var(--accent); }
.diagram-node.output { background: rgba(52,211,153,0.1); border-color: rgba(52,211,153,0.2); color: var(--accent2); }
.diagram-node.player { background: rgba(244,114,182,0.1); border-color: rgba(244,114,182,0.2); color: var(--accent3); }
.diagram-arrow {
  color: var(--text-muted);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.proto-cmd-block {
  margin-top: 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}
.proto-cmd-title {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.proto-cmd-block code {
  font-size: 0.8rem;
  background: none;
  padding: 0;
  color: var(--accent2);
  white-space: pre-wrap;
}
.diagram-detail {
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 0.78rem;
  color: var(--text-dim);
  border-bottom: 1px solid rgba(26,27,34,0.5);
}
.detail-row:last-child { border-bottom: none; }
.detail-label {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

/* ── RTMP Flow Animation ───────────────────── */
.rtmp-flow { padding: 24px; }
.rtmp-diagram-visual, .srt-diagram-visual, .st2110-diagram-visual, .ipmx-diagram-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.rtmp-node, .srt-node {
  text-align: center;
  padding: 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 100px;
}
.rtmp-icon, .srt-icon { font-size: 1.8rem; margin-bottom: 6px; }
.rtmp-label, .srt-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}
.rtmp-sub, .srt-sub, .st2110-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 2px;
}
.rtmp-connection, .srt-connection {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 60px;
}
.rtmp-line, .srt-line {
  flex: 1;
  height: 2px;
  background: var(--accent);
  opacity: 0.4;
}
.rtmp-line.dashed { background: repeating-linear-gradient(90deg, var(--accent) 0, var(--accent) 4px, transparent 4px, transparent 8px); }
.rtmp-packet {
  font-size: 1rem;
  animation: rtmpPacket 1.5s infinite;
  opacity: 0;
}
#rtmpPacket1 { animation-delay: 0s; }
#rtmpPacket2 { animation-delay: 0.5s; }
#rtmpPacket3 { animation-delay: 1s; }
@keyframes rtmpPacket {
  0% { opacity: 0; transform: translateX(-8px); }
  30% { opacity: 1; transform: translateX(0); }
  70% { opacity: 1; transform: translateX(0); }
  100% { opacity: 0; transform: translateX(8px); }
}

/* ── SRT Stats Box ─────────────────────────── */
.srt-stats-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  min-width: 120px;
}
.srt-stat-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.72rem;
  font-family: var(--mono);
  padding: 2px 0;
}
.srt-stat-row span:first-child { color: var(--text-muted); }
.srt-stat-row span:last-child { color: var(--accent2); }

/* ── NMOS Browser ──────────────────────────── */
.nmos-browser { padding: 0; }
.nmos-ui { font-family: var(--mono); font-size: 0.8rem; }
.nmos-toolbar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-input);
}
.nmos-tree {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.nmos-node {
  padding: 5px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 0.78rem;
  cursor: pointer;
}
.nmos-node:hover { background: var(--accent-dim); }
.nmos-node.root { color: var(--text); font-weight: 600; }
.nmos-expand { font-size: 0.6rem; color: var(--text-muted); }
.nmos-icon { font-size: 0.9rem; }
.nmos-type {
  font-size: 0.65rem;
  background: var(--bg-input);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--text-muted);
  margin-left: 4px;
}
.nmos-sender-type {
  font-size: 0.65rem;
  background: rgba(96,165,250,0.1);
  color: #60a5fa;
  padding: 1px 6px;
  border-radius: 4px;
}
.nmos-receiver-state {
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 4px;
}
.nmos-receiver-state.connected {
  background: rgba(52,211,153,0.12);
  color: #34d399;
}
.nmos-detail {
  padding: 14px;
}
.nmos-detail-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.nmos-json {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  font-size: 0.75rem;
  color: var(--accent2);
  overflow-x: auto;
  margin: 0;
}

/* ── ST 2110 Topology ──────────────────────── */
.st2110-flow { padding: 24px; }
.st2110-diagram-visual {
  flex-direction: column;
  gap: 16px;
}
.st2110-sender, .st2110-receiver {
  text-align: center;
}
.st2110-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.st2110-streams {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.st2110-stream {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.72rem;
  color: var(--text-dim);
  min-width: 140px;
}
.st2110-stream.video { border-color: rgba(96,165,250,0.3); }
.st2110-stream.audio { border-color: rgba(52,211,153,0.3); }
.st2110-stream.data { border-color: rgba(251,146,60,0.3); }
.st2110-stream-icon { font-size: 1.2rem; }
.st2110-bitrate {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--accent2);
  margin-left: auto;
}
.st2110-switch {
  text-align: center;
  padding: 14px 24px;
  background: var(--accent-dim);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 10px;
}
.st2110-switch-icon { font-size: 1.4rem; }
.st2110-switch-label { font-size: 0.82rem; font-weight: 600; color: var(--accent); }
.st2110-switch-sub { font-size: 0.7rem; color: var(--text-dim); }

/* ── IPMX Topology ─────────────────────────── */
.ipmx-flow { padding: 24px; }
.ipmx-devices {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 16px;
}
.ipmx-device {
  text-align: center;
  padding: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 90px;
}
.ipmx-device-icon { font-size: 1.6rem; margin-bottom: 4px; }
.ipmx-device-label { font-size: 0.75rem; font-weight: 600; color: var(--text); }
.ipmx-device-type {
  font-size: 0.65rem;
  font-family: var(--mono);
  color: var(--accent2);
  margin-top: 2px;
}
.ipmx-network { text-align: center; }
.ipmx-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--accent-dim);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
}
.ipmx-switch-icon { font-size: 1.2rem; }
.ipmx-protocols {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
}
.ipmx-proto-tag {
  font-size: 0.65rem;
  font-family: var(--mono);
  padding: 3px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
}

/* ── Comparison Table ──────────────────────── */
.proto-comparison {
  padding: 60px 32px 80px;
}
.proto-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-card);
}
.proto-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.proto-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--bg-input);
  border-bottom: 1px solid var(--border);
}
.proto-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
}
.proto-table tr:last-child td { border-bottom: none; }
.proto-table tr:hover td { background: var(--accent-dim); }
.proto-table td strong { color: var(--text); }
.proto-table .yes { color: #34d399; }
.proto-table .partial { color: #fbbf24; }
.proto-table .no { color: #f87171; }

/* ── Footer ────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 32px;
  margin-top: 40px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-brand p {
  color: var(--text-dim);
  font-size: 0.82rem;
  margin-top: 8px;
}
.footer-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}
.footer-col h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.footer-col p {
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.8;
}
.footer-bottom {
  text-align: center;
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
}