:root {
  --bg: #050816;
  --bg-elevated: rgba(15, 23, 42, 0.85);
  --bg-elevated-soft: rgba(15, 23, 42, 0.7);
  --border-subtle: rgba(148, 163, 184, 0.2);
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.25);
  --accent-muted: rgba(129, 140, 248, 0.2);
  --text: #e5e7eb;
  --text-soft: #9ca3af;
  --danger: #f97373;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.7);
}

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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #1d2333 0, #050816 45%, #020617 100%);
}

body {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.app-shell {
  width: 100%;
  height: 100%;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-card {
  width: 100%;
  max-width: 1200px;
  height: 100%;
  max-height: 780px;
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 16px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.8));
  border-radius: 24px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  backdrop-filter: blur(14px);
}

/* SIDEBAR */

.sidebar {
  padding: 18px 18px 18px 18px;
  border-right: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top left, rgba(91, 33, 182, 0.2), transparent 55%),
    radial-gradient(circle at bottom left, rgba(8, 47, 73, 0.3), transparent 55%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: radial-gradient(circle at 30% 0, #facc15, #f97316);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 0 24px rgba(248, 250, 252, 0.35);
}

.brand-text h1 {
  font-size: 18px;
  margin: 0;
}

.brand-text p {
  margin: 0;
  font-size: 12px;
  color: var(--text-soft);
}

.panel {
  background: var(--bg-elevated-soft);
  border-radius: var(--radius-lg);
  padding: 12px 12px 12px 12px;
  border: 1px solid var(--border-subtle);
}

.panel-small {
  padding: 10px;
}

.panel h2 {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
  font-size: 13px;
}

.field span {
  color: var(--text-soft);
}

.field input {
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.9);
  padding: 7px 9px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(129, 140, 248, 0.35);
  background: rgba(15, 23, 42, 1);
}

/* Buttons */

.btn {
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  font-size: 13px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 500;
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease,
    border-color 0.15s ease, opacity 0.15s ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
  box-shadow: none;
  transform: none;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #a855f7);
  color: white;
  box-shadow: 0 12px 24px rgba(55, 48, 163, 0.4);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 18px 34px rgba(55, 48, 163, 0.6);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--text);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--accent);
  background: rgba(15, 23, 42, 0.9);
}

.btn-danger {
  background: rgba(248, 113, 113, 0.2);
  border-color: rgba(248, 113, 113, 0.8);
  color: #fecaca;
}

.btn-danger:hover:not(:disabled) {
  background: rgba(248, 113, 113, 0.3);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* Misc sidebar elements */

.room-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.divider {
  display: flex;
  align-items: center;
  margin: 2px 0;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-soft);
  letter-spacing: 0.13em;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(148, 163, 184, 0.4);
}

.divider span {
  margin: 0 6px;
}

.last-session {
  font-size: 12px;
}

.last-session-empty {
  margin: 0;
  color: var(--text-soft);
}

.last-session-entry {
  border-radius: 10px;
  padding: 8px 9px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px dashed rgba(148, 163, 184, 0.55);
}

.last-session-entry-title {
  margin: 0 0 2px;
  font-weight: 500;
  color: var(--accent);
}

.last-session-entry-meta {
  margin: 0;
  color: var(--text-soft);
  font-size: 11px;
}

.status-text {
  margin: 0;
  font-size: 12px;
  color: var(--text-soft);
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 11px;
  color: var(--text-soft);
}

.meta-list li + li {
  margin-top: 2px;
}

/* Online list */

.online-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
}

.online-list li {
  padding: 4px 6px;
  border-radius: 6px;
  background: rgba(148, 163, 184, 0.12);
  margin-bottom: 4px;
}

.online-list li.online-self {
  background: rgba(129, 140, 248, 0.35);
  font-weight: 600;
}

/* CHAT */

.chat {
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.18), transparent 55%),
    radial-gradient(circle at bottom, rgba(79, 70, 229, 0.3), transparent 55%);
  padding: 14px;
  min-height: 0;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.7));
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.7);
}

.chat-header h2 {
  margin: 0;
  font-size: 16px;
}

.chat-subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-soft);
}

.chat-room-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: var(--radius-pill);
  padding: 4px 8px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.4);
  font-size: 11px;
}

.chip-label {
  color: var(--text-soft);
}

.chip-value {
  font-weight: 500;
}

/* Messages */

.chat-messages {
  flex: 1;
  margin-top: 14px;
  padding: 8px 10px 10px;
  background: rgba(15, 23, 42, 0.93);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.35);
  overflow-y: auto;
  position: relative;
  min-height: 0;
}

.message {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.message--own {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: white;
  box-shadow: 0 0 14px rgba(129, 140, 248, 0.7);
}

.message--other .message-avatar {
  background: linear-gradient(135deg, #0ea5e9, #22c55e);
  box-shadow: 0 0 14px rgba(45, 212, 191, 0.7);
}

.message-content {
  max-width: 75%;
}

.message-bubble {
  padding: 7px 10px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.4;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.55);
  backdrop-filter: blur(8px);
}

.message--own .message-bubble {
  background: radial-gradient(circle at top left, rgba(129, 140, 248, 0.7), rgba(30, 64, 175, 0.7));
  border-color: rgba(129, 140, 248, 0.9);
}

.message-header {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 2px;
}

.message-author {
  font-size: 12px;
  font-weight: 600;
}

.message-meta {
  font-size: 11px;
  color: var(--text-soft);
}

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

.message-system {
  text-align: center;
  margin: 8px 0;
  font-size: 11px;
  color: var(--text-soft);
}

/* Input */

.chat-input {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px;
  background: rgba(15, 23, 42, 0.9);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.chat-input input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}

.chat-input input::placeholder {
  color: var(--text-soft);
}

/* Scrollbar (webkit) */

.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.6);
  border-radius: 999px;
}

/* Responsive */

@media (max-width: 900px) {
  .app-card {
    grid-template-columns: 1fr;
    max-height: none;
  }

  .sidebar {
    flex-direction: row;
    overflow-x: auto;
    overflow-y: visible;
  }

  .panel {
    min-width: 220px;
  }
}

/* Scrollbar i vänstra panelen */
.sidebar::-webkit-scrollbar {
  width: 8px;
}

.sidebar::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.25); /* ljusgrå/lila ton */
  border-radius: 10px;
  border: 2px solid rgba(15, 23, 42, 0.85); /* "maskar in" scrollen */
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.45);
}