@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg: #0a0e0a;
  --bg-panel: #0f150f;
  --bg-input: #0d120d;
  --green: #33ff66;
  --green-dim: #1f9942;
  --green-faint: #114d24;
  --amber: #ffb347;
  --red: #ff5c5c;
  --border: #1c3a24;
  --text-muted: #5a8a66;
  --font: 'JetBrains Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--green);
  font-family: var(--font);
}

body {
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.15) 0px, rgba(0,0,0,0.15) 1px, transparent 1px, transparent 2px);
}

.hidden { display: none !important; }

/* ============ SPLASH SCREEN ============ */
.splash-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  position: fixed;
  inset: 0;
  z-index: 100;
  cursor: pointer;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.splash-screen.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.splash-logo-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: splashPopIn 0.7s cubic-bezier(0.2, 0.9, 0.3, 1.2) both;
}

.splash-logo {
  width: 96px;
  height: 96px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(51,255,102,0.5));
  border-radius: 8px;
  position: relative;
  z-index: 2;
}

.splash-logo-fallback {
  display: none;
  width: 96px;
  height: 96px;
  border: 2px solid var(--green);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--green);
  text-shadow: 0 0 10px rgba(51,255,102,0.6);
  box-shadow: 0 0 18px rgba(51,255,102,0.25);
  background: var(--bg-panel);
  position: relative;
  z-index: 2;
}

.splash-ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--green-dim);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: splashSpin 1.4s linear infinite;
  opacity: 0.7;
}

@keyframes splashPopIn {
  0% { transform: scale(0.4); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes splashSpin {
  to { transform: rotate(360deg); }
}

.splash-welcome {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--green);
  text-shadow: 0 0 8px rgba(51,255,102,0.4);
  min-height: 90px;
  text-align: left;
  display: flex;
  align-items: flex-end;
}

.splash-typed {
  margin: 0;
  white-space: pre-wrap;
  font-family: var(--font);
  font-size: inherit;
  color: inherit;
  text-shadow: inherit;
}

.splash-cursor {
  animation: splashBlink 0.9s steps(1) infinite;
  color: var(--green);
}

@keyframes splashBlink {
  50% { opacity: 0; }
}

.splash-loadbar {
  width: 220px;
  height: 4px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  overflow: hidden;
}

.splash-loadbar-fill {
  height: 100%;
  width: 0%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(51,255,102,0.6);
  animation: splashLoad 2.2s ease-out forwards;
}

@keyframes splashLoad {
  0% { width: 0%; }
  100% { width: 100%; }
}

.splash-skip {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  opacity: 0;
  animation: splashSkipFade 0.5s ease 1.2s forwards;
}

@keyframes splashSkipFade {
  to { opacity: 1; }
}

.copy-link-btn {
  margin-top: 8px;
  width: 100%;
  padding: 6px 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 11px;
  cursor: pointer;
}

.copy-link-btn:hover {
  border-color: var(--green-dim);
  color: var(--green);
}

.admin-section {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 4px;
}

.admin-btn {
  width: 100%;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  font-family: var(--font);
  font-size: 12px;
  letter-spacing: 0.5px;
  cursor: pointer;
}

.admin-btn:hover {
  background: rgba(255, 92, 92, 0.1);
}

.theme-section {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 10px;
}

.theme-list {
  display: flex;
  gap: 10px;
}

.theme-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border);
  cursor: pointer;
  padding: 0;
}

.theme-dot:hover { border-color: var(--text-muted); }

.theme-dot-green { background: #33ff66; }
.theme-dot-amber { background: #ffb347; }
.theme-dot-blue { background: #4fc3ff; }
.theme-dot-red { background: #ff5c5c; }

.kick-btn {
  color: var(--red);
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid var(--red);
  cursor: pointer;
  background: transparent;
  margin-left: auto;
}

.kick-btn:hover {
  background: rgba(255, 92, 92, 0.15);
}

.owner-crown {
  margin-right: 2px;
}

.tab-unread {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  display: inline-block;
  margin-left: 6px;
}

.translate-section {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 10px;
}

.translate-lang-select {
  width: 100%;
  padding: 6px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--green);
  font-family: var(--font);
  font-size: 12px;
}

.translate-lang-select:focus {
  border-color: var(--green-dim);
  outline: none;
}

.translate-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  margin-left: 6px;
  padding: 0 2px;
  vertical-align: middle;
}

.translate-btn:hover {
  color: var(--green);
}

.translate-btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.translated-text {
  margin-top: 3px;
  padding-left: 10px;
  border-left: 2px solid var(--green-faint);
  color: var(--text-muted);
  font-size: 13px;
  font-style: italic;
}

.msg.action {
  color: var(--text-muted);
  font-style: italic;
}

.msg.action .nick {
  color: var(--amber);
}

.matrix-rain-canvas {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
}

/* ============ THEME OVERRIDES ============ */
body.theme-amber {
  --green: #ffb347;
  --green-dim: #cc8a2e;
  --green-faint: #4d3410;
  --amber: #33ff66;
}

body.theme-blue {
  --green: #4fc3ff;
  --green-dim: #2a86b8;
  --green-faint: #0f2d40;
  --amber: #ffb347;
}

body.theme-red {
  --green: #ff5c5c;
  --green-dim: #b83a3a;
  --green-faint: #401010;
  --amber: #ffcc33;
}

/* ============ LOGIN SCREEN ============ */
.screen {
  width: 100vw;
  height: 100vh;
}

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  width: 100%;
  max-width: 420px;
  padding: 32px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  box-shadow: 0 0 24px rgba(51, 255, 102, 0.08);
}

.ascii-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 6px;
  color: var(--green);
  text-shadow: 0 0 8px rgba(51,255,102,0.5);
  margin-bottom: 4px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 0;
  margin-bottom: 24px;
}

#login-form label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
  margin-top: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.optional {
  text-transform: none;
  color: var(--green-dim);
  letter-spacing: 0;
}

#login-form input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--green);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
}

#login-form input:focus {
  border-color: var(--green-dim);
  box-shadow: 0 0 6px rgba(51,255,102,0.25);
}

#login-form input::placeholder {
  color: #2e4a34;
}

#join-btn {
  width: 100%;
  margin-top: 22px;
  padding: 12px;
  background: var(--green-faint);
  border: 1px solid var(--green-dim);
  color: var(--green);
  font-family: var(--font);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.15s ease;
}

#join-btn:hover {
  background: var(--green-dim);
  color: #04140a;
}

.error-msg {
  color: var(--red);
  font-size: 12px;
  margin-top: 10px;
  min-height: 14px;
}

.error-msg.pending-msg {
  color: var(--amber);
}

.join-requests {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 300px;
}

.join-request-toast {
  background: var(--bg-panel);
  border: 1px solid var(--amber);
  box-shadow: 0 0 16px rgba(255, 179, 71, 0.2);
  padding: 12px;
  animation: toastSlideIn 0.3s ease both;
}

@keyframes toastSlideIn {
  from { transform: translateX(30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.jr-text {
  font-size: 13px;
  color: var(--green);
  margin-bottom: 8px;
  word-break: break-word;
}

.jr-actions {
  display: flex;
  gap: 8px;
}

.jr-accept, .jr-reject {
  flex: 1;
  padding: 6px 8px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid;
}

.jr-accept {
  background: var(--green-faint);
  border-color: var(--green-dim);
  color: var(--green);
}

.jr-accept:hover {
  background: var(--green-dim);
  color: #04140a;
}

.jr-reject {
  background: transparent;
  border-color: var(--red);
  color: var(--red);
}

.jr-reject:hover {
  background: rgba(255, 92, 92, 0.15);
}

.hint {
  margin-top: 20px;
  font-size: 11px;
  line-height: 1.6;
  color: #3d6146;
}

/* ============ CHAT SCREEN ============ */
#chat-screen {
  display: flex;
}

.chat-layout {
  display: flex;
  width: 100%;
  height: 100%;
}

/* --- Sidebar --- */
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.room-info {
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 14px;
}

.room-label {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.room-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--green);
  word-break: break-all;
}

.lock-indicator {
  margin-top: 4px;
  font-size: 11px;
  color: var(--amber);
}

.section-label {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 8px;
  margin-top: 10px;
}

.tabs-section { margin-bottom: 8px; }

.tab-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tab-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 8px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  border: 1px solid transparent;
}

.tab-item:hover {
  background: rgba(51,255,102,0.06);
}

.tab-item.active {
  color: var(--green);
  border-color: var(--green-faint);
  background: rgba(51,255,102,0.08);
}

.tab-close {
  color: var(--red);
  font-size: 12px;
  padding: 0 4px;
}

.users-section {
  flex: 1;
  overflow-y: auto;
  min-height: 60px;
}

.user-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.user-list li {
  padding: 5px 8px;
  font-size: 13px;
  color: var(--green-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.user-list li:hover {
  color: var(--green);
  background: rgba(51,255,102,0.06);
}

.user-list li::before {
  content: "●";
  font-size: 8px;
  color: var(--green);
}

.leave-btn {
  margin-top: 12px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  font-family: var(--font);
  font-size: 12px;
  letter-spacing: 1px;
  cursor: pointer;
}

.leave-btn:hover {
  background: rgba(255, 92, 92, 0.1);
}

/* --- Main chat --- */
.main-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.chat-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.typing-indicator {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msg {
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.msg .ts {
  color: #3d6146;
  font-size: 11px;
  margin-right: 8px;
}

.msg .nick {
  color: var(--amber);
  font-weight: 700;
  margin-right: 4px;
}

.msg.own .nick {
  color: var(--green);
}

.msg.system {
  color: var(--text-muted);
  font-style: italic;
  font-size: 12px;
}

.msg.dm .nick {
  color: #c48bff;
}

.msg-image {
  max-width: 280px;
  max-height: 280px;
  border: 1px solid var(--border);
  margin-top: 4px;
  display: block;
  border-radius: 2px;
}

.file-attachment {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 320px;
  margin-top: 4px;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--green-faint);
  text-decoration: none;
  color: var(--green);
  transition: border-color 0.15s ease;
}

.file-attachment:hover {
  border-color: var(--green-dim);
  background: rgba(51,255,102,0.06);
}

.file-icon {
  font-size: 22px;
  flex-shrink: 0;
}

.file-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.file-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  font-size: 11px;
  color: var(--text-muted);
}

.message-form {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  position: relative;
}

.icon-btn {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--green);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  flex-shrink: 0;
}

.icon-btn:hover { border-color: var(--green-dim); }

.hidden-file-input { display: none; }

#message-input {
  flex: 1;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--green);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
}

#message-input:focus { border-color: var(--green-dim); }

.send-btn {
  padding: 10px 18px;
  background: var(--green-faint);
  border: 1px solid var(--green-dim);
  color: var(--green);
  font-family: var(--font);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  flex-shrink: 0;
}

.send-btn:hover {
  background: var(--green-dim);
  color: #04140a;
}

.emoji-picker {
  position: absolute;
  bottom: 56px;
  left: 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 8px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  max-width: 260px;
}

.emoji-picker span {
  cursor: pointer;
  font-size: 18px;
  text-align: center;
  padding: 4px;
}

.emoji-picker span:hover {
  background: rgba(51,255,102,0.1);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-faint); }
::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }

/* Responsive */
@media (max-width: 720px) {
  .sidebar { width: 180px; padding: 10px; }
  .chat-header { padding: 10px 12px; }
  .messages { padding: 10px 12px; }
  .message-form { padding: 8px; }
}