:root {
  color-scheme: dark;
  --bg: #090c12;
  --panel: rgba(18, 22, 30, 0.95);
  --border: rgba(255, 255, 255, 0.09);
  --text: #f8fafc;
  --muted: #b0b7c2;
  --accent: #d1d5db;
  --accent-strong: #f8fafc;
  --success: #d6e1d9;
  --danger: #f1d4d4;
  --shadow: 0 22px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #07090f 0%, #0f151f 50%, #080b13 100%);
}

button,
input,
textarea {
  font: inherit;
}

.app-shell {
  width: min(1190px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.hero {
  display: grid;
  gap: 18px;
  padding: 28px 28px 26px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(18, 24, 32, 0.96);
  box-shadow: var(--shadow);
}

.hero > div {
  display: grid;
  gap: 14px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 3.7vw, 4.3rem);
  line-height: 1.02;
}

.hero p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.hero-status {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.status-pill,
.status-note {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.status-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 0 6px rgba(251, 113, 133, 0.12);
}

.dot.connected {
  background: var(--success);
  box-shadow: 0 0 0 6px rgba(74, 222, 128, 0.14);
}

.grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 20px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(14, 20, 28, 0.95);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-header {
  padding: 24px 24px 0;
}

.panel-header h2,
.panel-header h3 {
  margin: 0;
  font-size: 1.15rem;
}

.panel-header p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.panel-body {
  padding: 20px 24px 24px;
}

.stack {
  display: grid;
  gap: 16px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.input,
.textarea,
.file-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: rgba(8, 14, 24, 0.82);
  color: var(--text);
}

textarea.textarea {
  min-height: 140px;
  resize: vertical;
}

.input::placeholder,
.textarea::placeholder {
  color: #7b8fa8;
}

.input:focus,
.textarea:focus {
  outline: none;
  border-color: rgba(125, 211, 252, 0.6);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  border: 0;
  border-radius: 10px;
  padding: 14px 18px;
  cursor: pointer;
  color: #111827;
  background: #d1d5db;
  font-weight: 700;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    opacity 0.18s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(56, 189, 248, 0.18);
}

.btn.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn.danger {
  color: #fff;
  background: #7f1d1d;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.room-card {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.room-summary .room-code {
  font-size: 2rem;
  letter-spacing: 0.16em;
  font-weight: 800;
  color: var(--text);
}

.room-meta,
.room-stats {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.room-stats {
  grid-template-columns: repeat(3, minmax(0, auto));
  gap: 10px;
}

.room-stats span {
  display: inline-flex;
  justify-content: space-between;
  gap: 8px;
}

.room-stats strong {
  color: var(--text);
}

.members-panel {
  border: 1px solid rgba(125, 211, 252, 0.12);
  background: rgba(13, 22, 40, 0.92);
}

.members-body {
  padding: 14px 16px 18px;
}

.list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.list-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
}

.feed-list {
  min-height: 420px;
  max-height: 58vh;
  margin: 0;
  padding: 16px;
  list-style: none;
  display: grid;
  gap: 14px;
  overflow-y: auto;
}

.feed-item {
  padding: 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.feed-item.system {
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-style: italic;
  text-align: center;
}

.feed-item.chat {
  border-left: 4px solid var(--accent-strong);
}

.feed-item.media {
  border-left: 4px solid #a78bfa;
}

.feed-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.feed-sender {
  color: var(--text);
  font-weight: 700;
}

.feed-message {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.feed-media {
  display: grid;
  gap: 10px;
}

.feed-media img,
.feed-media video {
  width: 100%;
  border-radius: 16px;
  background: #020617;
}

.composer {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .feed-list {
    max-height: none;
  }
}

@media (max-width: 620px) {
  .hero {
    padding: 22px 18px 22px;
  }

  .panel-header,
  .panel-body {
    padding-left: 18px;
    padding-right: 18px;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .btn-row {
    justify-content: stretch;
  }
}

.feed {
  display: grid;
  gap: 12px;
}

.feed-list {
  min-height: 480px;
  max-height: 58vh;
  padding: 16px;
  margin: 0;
  list-style: none;
  overflow: auto;
  display: grid;
  gap: 10px;
}

.feed-item {
  padding: 12px 14px;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.feed-item.system {
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-style: italic;
}

.feed-item.chat {
  border-left: 4px solid var(--accent-strong);
}

.feed-item.media {
  border-left: 4px solid #a78bfa;
}

.feed-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.86rem;
}

.feed-sender {
  color: var(--text);
  font-weight: 700;
}

.feed-message {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.feed-media {
  display: grid;
  gap: 10px;
}

.feed-media img,
.feed-media video {
  width: 100%;
  border-radius: 14px;
  background: #020617;
}

.sidebar {
  display: grid;
  gap: 18px;
}

.list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.badge {
  font-size: 0.78rem;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.12);
  color: var(--accent);
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .feed-list {
    max-height: none;
  }
}