* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

:root {
  --bg-dark: #030712;
  --panel-bg: rgba(17, 24, 39, 0.85);
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --bubble-self: linear-gradient(135deg, #2563eb, #1d4ed8);
  --bubble-other: rgba(30, 41, 59, 0.8);
  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --border-glow: rgba(59, 130, 246, 0.25);
  --danger: #ef4444;
}

body {
  background: radial-gradient(circle at top left, #0d1527, #030712);
  color: var(--text-primary);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* LOGIN MODAL OVERLAY */
.login-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.9);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-modal-overlay.hidden { display: none; }

.login-card {
  width: 90%;
  max-width: 440px;
  background: rgba(17, 24, 39, 0.95);
  border: 1px solid var(--border-glow);
  padding: 35px 30px;
  border-radius: 24px;
  box-shadow: 0 0 50px rgba(59, 130, 246, 0.25);
  text-align: center;
}

.brand-badge {
  display: inline-block;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-cyan);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 15px;
}

.login-header h2 { font-size: 1.6rem; font-weight: 800; }
.login-header p { font-size: 0.85rem; color: var(--text-muted); margin-top: 5px; margin-bottom: 25px; }

.avatar-picker-section { display: flex; justify-content: center; margin-bottom: 20px; }
.avatar-picker-section img {
  width: 75px;
  height: 75px;
  border-radius: 50%;
  background: #0f172a;
  border: 3px solid var(--accent-cyan);
}

.input-field { position: relative; margin-bottom: 16px; }
.input-field i { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--accent-cyan); }
.input-field input {
  width: 100%;
  background: #0b1120;
  border: 1px solid #1e293b;
  padding: 14px 14px 14px 45px;
  border-radius: 14px;
  color: #fff;
  font-size: 0.9rem;
  outline: none;
}

.btn-gen-room {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: #1e293b;
  border: 1px solid var(--accent-blue);
  color: var(--accent-cyan);
  padding: 6px 12px;
  border-radius: 10px;
  font-size: 0.75rem;
  cursor: pointer;
  font-weight: 600;
}

.btn-gen-room:hover { background: var(--accent-blue); color: white; }

.btn-launch {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: white;
  border: none;
  padding: 14px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
}

/* MAIN CHAT CONTAINER */
.chat-app {
  display: flex;
  width: 95vw;
  max-width: 1350px;
  height: 90vh;
  background: var(--panel-bg);
  backdrop-filter: blur(24px);
  border: 1px solid var(--border-glow);
  border-radius: 28px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8);
  overflow: hidden;
}

.chat-app.blur-app { filter: blur(8px); pointer-events: none; }

.sidebar {
  width: 330px;
  background: rgba(11, 17, 32, 0.9);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand-section { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; color: var(--accent-blue); }
.logo span { color: var(--accent-cyan); }

.icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: none;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  cursor: pointer;
}

.config-panel {
  background: #1e293b;
  padding: 16px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--border-glow);
}
.config-panel.hidden { display: none; }
.config-title { font-size: 0.8rem; font-weight: 700; color: var(--accent-cyan); display: flex; gap: 8px; }
.input-group label { display: block; font-size: 0.7rem; color: var(--text-muted); }
.input-group input {
  width: 100%;
  background: #0f172a;
  border: 1px solid #334155;
  padding: 8px 10px;
  border-radius: 8px;
  color: #fff;
  font-size: 0.8rem;
  outline: none;
}

.btn-save-cloud {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 8px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
}

.user-profile-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.avatar-container { position: relative; }
.avatar-container img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #0b1120;
  border: 2px solid var(--accent-cyan);
}

.online-indicator {
  position: absolute;
  bottom: 2px;
  right: 0;
  width: 10px;
  height: 10px;
  background: #10b981;
  border-radius: 50%;
}

.user-details { flex: 1; overflow: hidden; }
.user-details h4 { font-size: 0.9rem; font-weight: 700; }
.user-status { font-size: 0.7rem; color: var(--accent-cyan); }

.mini-icon-btn { background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem; }
.mini-icon-btn:hover { color: var(--danger); }

.nav-channels { flex: 1; }
.nav-label { font-size: 0.68rem; font-weight: 800; color: var(--text-muted); letter-spacing: 1px; }

.channel-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  margin-top: 10px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.channel-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.channel-info { flex: 1; }
.channel-info strong { font-size: 0.85rem; display: block; color: #fff; }
.channel-info small { font-size: 0.7rem; color: var(--accent-cyan); }

.mini-copy-btn {
  background: #1e293b;
  border: 1px solid var(--accent-blue);
  color: var(--accent-cyan);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
}

.btn-clear-all {
  width: 100%;
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.brand-signature { text-align: center; font-size: 0.75rem; color: var(--text-muted); margin-top: 12px; font-weight: 600; }

.chat-workspace { flex: 1; display: flex; flex-direction: column; background: rgba(3, 7, 18, 0.6); }

.workspace-header {
  height: 75px;
  padding: 0 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(11, 17, 32, 0.4);
}

.header-left { display: flex; align-items: center; gap: 15px; }
.room-avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.status-tag {
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 20px;
  background: #1e293b;
  color: var(--text-muted);
}
.status-tag.online { background: rgba(16, 185, 129, 0.15); color: #10b981; }

.glass-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  cursor: pointer;
}

.chat-display-area { flex: 1; padding: 25px 30px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }

.chat-bubble { max-width: 60%; display: flex; gap: 12px; position: relative; }
.chat-bubble.self { align-self: flex-end; flex-direction: row-reverse; }
.chat-bubble.other { align-self: flex-start; }

.bubble-avatar { width: 36px; height: 36px; border-radius: 50%; }

.bubble-content {
  background: var(--bubble-other);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 12px 18px;
  border-radius: 18px;
  position: relative;
}

.chat-bubble.self .bubble-content { background: var(--bubble-self); border: none; }

.bubble-header { display: flex; justify-content: space-between; gap: 15px; margin-bottom: 4px; }
.sender-name { font-size: 0.78rem; font-weight: 700; color: var(--accent-cyan); }
.chat-bubble.self .sender-name { color: #bfdbfe; }
.msg-time { font-size: 0.65rem; color: var(--text-muted); }
.msg-text { font-size: 0.9rem; line-height: 1.4; word-break: break-word; }

.delete-btn {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--danger);
  color: white;
  border: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 0.65rem;
  cursor: pointer;
  display: none;
}
.bubble-content:hover .delete-btn { display: flex; align-items: center; justify-content: center; }

.system-msg {
  align-self: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.workspace-footer { padding: 20px 30px; background: rgba(11, 17, 32, 0.8); border-top: 1px solid rgba(255, 255, 255, 0.05); }
.chat-input-wrapper { display: flex; align-items: center; gap: 12px; }

.attach-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  width: 46px;
  height: 46px;
  border-radius: 14px;
  cursor: pointer;
}

#messageInput {
  flex: 1;
  background: #0b1120;
  border: 1px solid #1e293b;
  padding: 14px 20px;
  border-radius: 14px;
  color: white;
  font-size: 0.95rem;
  outline: none;
}

.btn-send-msg {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: white;
  border: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  cursor: pointer;
}

.image-drawer { margin-top: 10px; display: flex; gap: 10px; background: #0b1120; padding: 8px 14px; border-radius: 10px; border: 1px dashed var(--accent-blue); }
.image-drawer.hidden { display: none; }
.image-drawer input { width: 100%; background: transparent; border: none; color: white; font-size: 0.8rem; outline: none; }