/* ===== متغيرات محسّنة ===== */
:root{
  /* الأساسيات */
  --bg:#0f172a; 
  --card:#0b1220; 
  --muted:#9aa4b2; 
  --accent:#6ee7b7; 
  --accent-2:#60a5fa;
  --incoming:#0b1228; 
  --outgoing:#08332b; 
  --glass:rgba(255,255,255,0.04);
  --radius:14px; 
  --glass-2:rgba(255,255,255,0.03);
  --gradient-start:#0f172a; 
  --gradient-end:#1e293b; 
  --card-shadow:0 8px 32px rgba(0,0,0,0.4);
  --success:#10b981; 
  --warning:#f59e0b; 
  --error:#ef4444; 
  --info:#3b82f6;
  --pulse-color:rgba(110,231,183,0.15);
  --glow-color:rgba(96,165,250,0.2);
  --disconnect-bg:rgba(239,68,68,0.15);
  --text-primary:#e2e8f0;
  --text-secondary:#cbd5e1;
  --border-light:rgba(255,255,255,0.05);
  --shadow-sm:0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg:0 8px 24px rgba(0,0,0,0.5);
  --transition:all 0.2s ease;
  color-scheme: dark;
  font-family: 'Tajawal', 'Cairo', 'Almarai', 'Inter', system-ui, sans-serif;
}
[data-theme="light"]{
  --bg:#f9f9fc; 
  --card:#ffffff; 
  --muted:#4b5563; 
  --accent:#0066cc; 
  --accent-2:#10b981;
  --incoming:#e6f2fe; 
  --outgoing:#d1fae5; 
  --glass:rgba(15,23,42,0.04); 
  --glass-2:rgba(15,23,42,0.03);
  --gradient-start:#f1f5f9; 
  --gradient-end:#e2e8f0; 
  --card-shadow:0 8px 24px rgba(0,0,0,0.06);
  --pulse-color:rgba(0,102,204,0.12);
  --glow-color:rgba(16,185,129,0.15);
  --disconnect-bg:rgba(239,68,68,0.08);
  --text-primary:#1e293b;
  --text-secondary:#334155;
  --border-light:rgba(0,0,0,0.05);
  --shadow-sm:0 2px 8px rgba(0,0,0,0.04);
  --shadow-md:0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg:0 8px 24px rgba(0,0,0,0.08);
  color-scheme: light;
}

/* ===== Reset & Base ===== */
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;background:linear-gradient(135deg, var(--gradient-start) 0%, var(--bg) 50%, var(--gradient-end) 100%);transition:background .35s ease; overflow: hidden;}
body{font-family:'Tajawal','Cairo','Almarai','Inter',sans-serif;line-height:1.6;color:var(--text-primary);min-height:100vh}

/* ===== Canvas Particles ===== */
#bgCanvas{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:0.12;mix-blend-mode:screen;transition:opacity 0.3s;}
@media (prefers-reduced-motion: reduce) { #bgCanvas { opacity: 0.02; display: none; } }
@media (max-width: 768px) { #bgCanvas { opacity: 0.05; } }

/* ===== شاشة التحميل ===== */
.loading-overlay{
  position:fixed; top:0; right:0; width:100%; height:100%;
  background:var(--bg); display:flex; flex-direction:column; justify-content:center; align-items:center;
  z-index:9999; transition:opacity 0.3s ease, visibility 0.3s ease;
}
.loading-overlay.hidden{ opacity:0; visibility:hidden; pointer-events:none; }
.loading-logo{ width:80px; height:80px; border-radius:20px; background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex; align-items:center; justify-content:center; color:#fff; font-weight:800; font-size:32px;
  box-shadow:0 8px 32px rgba(110,231,183,0.3); margin-bottom:20px; animation:pulse 2s infinite; }
.loading-text{ font-size:18px; color:var(--accent-2); margin-top:15px; font-weight:600; }
.loading-spinner{ width:40px; height:40px; border:3px solid rgba(255,255,255,0.1); border-top-color:var(--accent); border-radius:50%; animation:spin 1s linear infinite; }
.loading-tips{ font-size:14px; color:var(--muted); margin-top:10px; max-width:300px; text-align:center; }

/* ===== التخطيط الرئيسي ===== */
.app-container{max-width:1400px;margin:20px auto;height:100vh;display:grid;grid-template-columns:320px 1fr;gap:20px;padding:20px;align-items:stretch;opacity:0;transform:translateY(20px);transition:opacity 0.5s ease, transform 0.5s ease;overflow:hidden;position:relative;z-index:1}
.app-container.loaded{opacity:1;transform:translateY(0);}

.sidebar-panel{
  background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);
  border-radius:var(--radius); padding:20px; box-shadow:0 20px 40px rgba(2,6,23,0.4), 0 0 0 1px rgba(255,255,255,0.03);
  display:flex; flex-direction:column; backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px);
  animation:shadowMove 20s infinite alternate, float 6s ease-in-out infinite; overflow:hidden; will-change:transform, box-shadow;
}
@keyframes shadowMove{0%{box-shadow:0 20px 40px rgba(110,231,183,0.1),0 0 0 1px rgba(255,255,255,0.03);}100%{box-shadow:0 20px 40px rgba(96,165,250,0.1),0 0 0 1px rgba(255,255,255,0.03);}}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-5px);}}

.clinic-brand{display:flex;align-items:center;gap:15px;margin-bottom:25px;padding-bottom:15px;border-bottom:1px solid var(--glass-2)}
.clinic-logo{width:60px;height:60px;border-radius:15px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:24px;box-shadow:0 8px 24px rgba(2,6,23,0.6);position:relative;overflow:hidden;}
.clinic-logo::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.1),transparent);transform:rotate(45deg);animation:shine 3s infinite;}
.clinic-info{flex:1}
.clinic-title{font-weight:800;font-size:22px;color:var(--accent-2);margin-bottom:5px;letter-spacing:-0.5px}
.clinic-subtitle{font-size:14px;color:var(--muted);opacity:0.9}
.clinic-badge{background:linear-gradient(90deg,#6ee7b7,#60a5fa);color:#04202b;padding:4px 10px;border-radius:8px;font-size:11px;font-weight:700;margin-top:5px;display:inline-block;animation:pulse-badge 3s infinite;}

.connection-stats{background:var(--glass);border-radius:12px;padding:15px;margin-bottom:20px;border:1px solid var(--glass-2);position:relative;overflow:hidden;}
.connection-stats::before{content:'';position:absolute;top:0;right:0;width:4px;height:100%;background:linear-gradient(180deg,var(--accent),var(--accent-2));}
.stat-row{display:flex;justify-content:space-between;margin-bottom:10px;font-size:14px;transition:transform 0.2s ease;}
.stat-row:hover{transform:translateX(-5px);}
.stat-row:last-child{margin-bottom:0}
.stat-label{color:var(--muted)}
.stat-value{font-weight:600;color:var(--accent-2);position:relative;}
.stat-value.online{color:var(--success);}
.stat-value.offline{color:var(--error);background:var(--disconnect-bg);padding:4px 10px;border-radius:6px;}
.stat-value::after{content:'';position:absolute;bottom:-2px;right:0;width:0;height:2px;background:currentColor;transition:width 0.3s ease;}
.stat-row:hover .stat-value::after{width:100%;}

.user-controls{margin-bottom:25px}
.control-group{margin-bottom:15px}
.control-label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;font-weight:500}
.control-input{width:100%;padding:12px 15px;border-radius:10px;border:1px solid var(--glass-2);background:rgba(255,255,255,0.03);color:inherit;font-family:inherit;font-size:14px;transition:all .25s ease}
.control-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(110,231,183,0.1), 0 0 20px rgba(110,231,183,0.2);}

.action-buttons{display:flex;gap:10px;margin-top:20px}
.btn{flex:1;padding:12px 20px;border-radius:10px;border:none;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:8px;position:relative;overflow:hidden}
.btn::before{content:'';position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:rgba(255,255,255,0.1);transform:translate(-50%,-50%);transition:width .4s,height .4s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(2,6,23,0.4)}
.btn:hover::before{width:300px;height:300px}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04202b;box-shadow:0 6px 20px rgba(110,231,183,0.3);}
.btn.primary:hover{box-shadow:0 10px 30px rgba(110,231,183,0.4), 0 0 20px rgba(110,231,183,0.3);}
.btn.secondary{background:var(--glass);color:var(--muted);border:1px solid var(--glass-2)}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none !important}
.btn-icon{font-size:16px}
.btn:focus{outline:3px solid rgba(96,165,250,0.18);outline-offset:2px}
.btn.danger:hover{background:rgba(239,68,68,0.2);color:var(--error);border-color:var(--error);}

.online-users-section{margin-top:20px;flex:1;overflow:hidden;display:flex;flex-direction:column}
.section-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:10px;border-bottom:1px solid var(--glass-2)}
.section-title h3{font-size:16px;font-weight:700;color:var(--accent-2)}
.online-count{background:var(--accent);color:#04202b;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;animation:pulse-count 2s infinite;}

.users-list{flex:1;overflow:auto;padding-right:5px}
.user-item{display:flex;align-items:center;justify-content:space-between;padding:12px;border-radius:10px;margin-bottom:8px;border:1px solid transparent;transition:all .25s ease;cursor:pointer}
.user-item:hover{transform:translateX(5px);border-color:var(--glass);background:linear-gradient(90deg,var(--glass),transparent)}
.user-item:active{transform:translateX(5px) scale(0.98);}
.user-avatar{width:45px;height:45px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;flex-shrink:0;position:relative;overflow:hidden;}
.user-avatar::before{content:'';position:absolute;width:100%;height:100%;background:linear-gradient(45deg,transparent,rgba(255,255,255,0.2),transparent);transform:translateX(-100%);}
.user-item:hover .user-avatar::before{animation:shine 0.6s;}
.user-info{flex:1;margin:0 12px}
.user-name{font-weight:600;margin-bottom:3px;font-size:14px;display:flex;align-items:center;gap:5px;flex-wrap:wrap;}
.user-type{font-size:12px;color:var(--muted)}
.role-icon{width:16px;height:16px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:10px;margin-right:5px;}
.role-icon.admin{background:#f59e0b;color:#fff;}
.role-icon.user{background:#60a5fa;color:#fff;}
.role-icon.guest{background:#9ca3af;color:#fff;}
.role-icon.bot{background:#6ee7b7;color:#04202b;}
.user-status{display:flex;align-items:center;gap:5px}
.status-dot{width:10px;height:10px;border-radius:50%;box-shadow:0 0 0 2px var(--card);position:relative;}
.status-dot.online{background:var(--success);}
.status-dot.offline{background:var(--muted)}
.status-dot.online::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:16px;height:16px;border-radius:50%;background:var(--success);opacity:0.3;animation:pulse 2s infinite;}

/* ===== شريط الدردشة ===== */
.chat-panel{display:flex;flex-direction:column;height:100%;min-height:0;position:relative;}
.chat-header{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;background:var(--glass);border-radius:var(--radius) var(--radius) 0 0;border-bottom:1px solid var(--glass-2);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);position:relative;}
.chat-header::after{content:'';position:absolute;bottom:0;right:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);}
.chat-title{font-weight:800;font-size:20px;color:var(--accent-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 70%;}
.chat-info{display:flex;align-items:center;gap:15px; flex-shrink: 0;}
.chat-subtitle{font-size:14px;color:var(--muted); display: none;} /* مخفي على الموبايل، يظهر على الشاشات الكبيرة */
.connection-status{display:flex;align-items:center;gap:8px;font-size:13px}
.status-indicator{width:10px;height:10px;border-radius:50%}
.status-indicator.connected{background:var(--success);animation:pulse 2s infinite}
.status-indicator.connecting{background:var(--warning);animation:pulse 1s infinite}
.status-indicator.disconnected{background:var(--error)}
.connection-status .status-indicator.disconnected + span { color: var(--error); font-weight: 600; }

/* شريط فقدان الاتصال */
.offline-bar{
  background:var(--error); color:white; padding:6px 16px; text-align:center; font-size:14px;
  display:none; align-items:center; justify-content:center; gap:10px;
}
.offline-bar.show{display:flex;}
.offline-bar button{background:white; color:var(--error); border:none; border-radius:20px; padding:4px 12px; font-weight:600; cursor:pointer;}

/* ===== حاوية الرسائل مع فيديو الخلفية ===== */
.messages-container{
  flex:1 1 auto;
  overflow:hidden;
  position:relative;
  min-height:0;
}
.background-video{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
  pointer-events:none;
  opacity:1; /* تم التعديل: أصبح معتماً بالكامل لإظهار الألوان الطبيعية */
}
/* تمت إزالة الطبقة الداكنة التي كانت تؤثر على الفيديو */
.messages-container::after{
  display: none; /* إزالة تأثير التعتيم العلوي */
}
.messages-area{
  height:100%;
  overflow:auto;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:15px;
  scroll-behavior:smooth;
  position:relative;
  z-index:2; /* فوق الفيديو */
  background:transparent; /* شفاف لنرى الخلفية */
}
.messages-area::-webkit-scrollbar{width:8px}
.messages-area::-webkit-scrollbar-track{background:transparent}
.messages-area::-webkit-scrollbar-thumb{background:var(--glass);border-radius:4px}
.messages-area::-webkit-scrollbar-thumb:hover{background:var(--accent)}

.day-divider{display:flex;align-items:center;margin:15px 0}
.day-divider::before,.day-divider::after{content:'';flex:1;height:1px;background:var(--glass-2)}
.day-label{background:var(--glass);padding:6px 15px;border-radius:999px;font-size:12px;color:var(--muted);margin:0 15px;font-weight:600;border:1px solid var(--glass-2);animation:fadeIn 0.5s ease;}

.message-wrapper{display:flex;flex-direction:column;max-width:78%;animation:fadeInUp .3s ease;flex:0 0 auto;position:relative}
.message-wrapper.highlight{animation:highlightPulse 2s ease;}
.message-wrapper .reactions{position:absolute;bottom:-18px;left:0;display:flex;gap:6px}
.reaction-btn{background:var(--glass);padding:4px 6px;border-radius:999px;font-size:12px;color:var(--muted);cursor:pointer;border:1px solid var(--glass-2);transition:all 0.2s;}
.reaction-btn:hover{background:var(--accent-2);color:white;border-color:var(--accent-2);}
@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes highlightPulse{0%{box-shadow:0 0 0 0 var(--pulse-color);}70%{box-shadow:0 0 0 10px transparent;}100%{box-shadow:0 0 0 0 transparent;}}

/* فقاعات رسائل محسّنة */
.message-bubble{padding:15px;border-radius:18px;line-height:1.6;word-break:break-word;box-shadow:var(--shadow-md);position:relative;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border-light);transition:transform 0.2s ease, box-shadow 0.2s; background-color: rgba(0, 0, 0, 0.2); /* خلفية إضافية لتحسين قراءة النص */ }
.message-bubble:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.message-incoming{align-self:flex-start}
.message-incoming .message-bubble{background:linear-gradient(135deg, var(--incoming), transparent); border-top-left-radius:6px; border-left:3px solid var(--accent-2);}
.message-outgoing{align-self:flex-end}
.message-outgoing .message-bubble{background:linear-gradient(135deg, var(--outgoing), transparent); border-top-right-radius:6px; border-right:3px solid var(--accent);}
.message-system{align-self:center;max-width:90%}
.message-system .message-bubble{background:var(--glass);border:1px solid var(--glass-2);text-align:center;font-size:13px;padding:10px 20px}
/* المسافة بين الرسائل */
.message-wrapper + .message-wrapper {margin-top:8px;}
.message-wrapper.message-outgoing + .message-wrapper.message-incoming,
.message-wrapper.message-incoming + .message-wrapper.message-outgoing {margin-top:16px;}

.message-header{display:flex;align-items:center;margin-bottom:8px;gap:8px}
.message-sender{font-weight:700;font-size:14px;color:var(--accent-2);display:flex;align-items:center;gap:5px;}
.message-time{font-size:11px;color:var(--muted);opacity:0.8}
.message-content{font-size:16px;line-height:1.6}
.message-footer{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-size:12px;color:var(--muted)}

/* شارات الأدوار (أيقونات) */
.role-badge{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;font-size:10px;margin-left:4px;}
.role-badge.admin{background:#f59e0b;color:#fff;}
.role-badge.user{background:#60a5fa;color:#fff;}
.role-badge.guest{background:#9ca3af;color:#fff;}
.role-badge.bot{background:#6ee7b7;color:#04202b;}

/* المرفقات المحسّنة */
.message-attachments{margin-top:12px}
.attachment-item{display:flex;align-items:center;gap:10px;padding:10px;background:rgba(255,255,255,0.03);border-radius:10px;margin-top:8px;border:1px solid var(--glass-2);transition:all 0.2s ease;}
.attachment-item:hover{transform:translateX(5px);border-color:var(--accent);}
.attachment-icon{font-size:20px;color:var(--accent-2); min-width:24px; text-align:center;}
.attachment-info{flex:1}
.attachment-name{font-size:13px;font-weight:500;margin-bottom:3px}
.attachment-size{font-size:11px;color:var(--muted)}
.attachment-download{color:var(--accent-2);text-decoration:none;font-size:12px;font-weight:500; display:flex; align-items:center; gap:4px;}
.attachment-download:hover{text-decoration:underline}

/* مؤشر الكتابة المحسّن */
.typing-indicator{display:flex;align-items:center;gap:10px;padding:8px 15px;background:var(--glass);border-radius:30px;width:fit-content;margin:5px 20px;animation:fadeIn 0.3s ease;}
.typing-avatar{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:bold;}
.typing-content{display:flex;align-items:center;gap:8px;}
.typing-text{font-size:13px;color:var(--muted)}
.typing-dots{display:flex;gap:3px}
.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:typingBounce 1.4s infinite}
.typing-dot:nth-child(2){animation-delay:.2s}
.typing-dot:nth-child(3){animation-delay:.4s}
@keyframes typingBounce{0%,60%,100%{transform:translateY(0);}30%{transform:translateY(-5px);}}

.message-composer{display:flex;gap:10px;padding:15px;background:var(--glass);border-radius:0 0 var(--radius) var(--radius);align-items:center;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--glass-2);position:relative;z-index:2}
.message-composer::before{content:'';position:absolute;top:0;right:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--accent-2),transparent);opacity:0.5;}
.composer-input{flex:1;padding:12px 15px;border-radius:12px;border:1px solid rgba(255,255,255,0.08);background:rgba(255,255,255,0.03);color:inherit;font-family:inherit;font-size:16px;line-height:1.5;resize:none;min-height:50px;max-height:200px;outline:none;transition:all .3s ease}
.composer-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(110,231,183,0.1), 0 0 20px rgba(110,231,183,0.2);}
.composer-buttons{display:flex;gap:8px;align-items:center}
.composer-btn{width:45px;height:45px;border-radius:12px;background:var(--glass);border:1px solid var(--glass-2);color:var(--muted);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}
.composer-btn:hover{background:var(--accent-2);color:white;transform:translateY(-2px);box-shadow:0 5px 15px rgba(96,165,250,0.3);}
.composer-btn.send-btn{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04202b;border:none}

/* ===== منتقي الإيموجي المتطور ===== */
.emoji-picker-container{position:absolute;bottom:80px;inset-inline-end:20px;background:var(--card);border-radius:15px;padding:15px;box-shadow:0 15px 50px rgba(2,6,23,0.7);z-index:1000;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,0.1);display:none;width:340px;animation:slideUp 0.3s ease;}
.emoji-categories{display:flex;gap:5px;margin-bottom:10px; flex-wrap: wrap;}
.emoji-category-btn{padding:8px 12px;border-radius:8px;background:transparent;border:none;color:var(--muted);font-size:12px;font-weight:500;cursor:pointer;transition:all 0.2s ease;}
.emoji-category-btn:hover{background:var(--glass);}
.emoji-category-btn.active{background:var(--accent);color:#04202b}
.emoji-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;max-height:250px;overflow:auto;padding:5px}
.emoji-item{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:22px;cursor:pointer;transition:all .2s ease}
.emoji-item:hover{background:var(--accent);transform:scale(1.2) rotate(5deg);color:#04202b;box-shadow:0 5px 15px rgba(110,231,183,0.3);}
.recent-emoji{ border-top:1px solid var(--glass-2); margin-top:10px; padding-top:10px; }
.recent-emoji h4{ font-size:12px; color:var(--muted); margin-bottom:5px; }

/* ===== تحسينات إضافية ===== */
.floating-emoji {
  position: fixed;
  pointer-events: none;
  font-size: 28px;
  z-index: 9999;
  animation: floatUp 1.5s ease-out forwards;
  filter: drop-shadow(0 0 8px rgba(110,231,183,0.6));
}
@keyframes floatUp {
  0% { transform: translateY(0) scale(0.8); opacity: 1; }
  100% { transform: translateY(-150px) scale(1.5); opacity: 0; }
}

.click-ripple {
  position: fixed;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.6) 0%, rgba(255,255,255,0) 70%);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%) scale(0);
  animation: rippleExpand 0.6s ease-out forwards;
}
@keyframes rippleExpand {
  0% { transform: translate(-50%, -50%) scale(0); opacity: 0.5; width: 0; height: 0; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 0; width: 150px; height: 150px; }
}

.message-reaction-trigger {
  position: absolute; bottom: -10px; left: 20px; background: var(--glass);
  border: 1px solid var(--glass-2); border-radius: 999px; padding: 4px 8px;
  font-size: 12px; color: var(--muted); cursor: pointer; display: none;
  backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px); transition: all 0.2s; align-items: center; gap: 4px;
  z-index: 5; box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.message-wrapper:hover .message-reaction-trigger { display: flex; }
.message-reaction-trigger:hover { background: var(--accent-2); color: white; border-color: var(--accent-2); }

.sidebar-overlay {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px); z-index: 999;
}
.sidebar-overlay.active { display: block; }

/* إشعار Toast قابل للسحب */
.notification-toast{
  position:fixed; bottom:20px; right:20px; background:var(--card); padding:12px 18px; border-radius:12px; box-shadow:0 15px 50px rgba(2,6,23,0.7); z-index:10000; display:none; backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px); border:1px solid rgba(255,255,255,0.05); max-width:350px; animation:slideIn .3s ease; touch-action: pan-y;
}
@keyframes slideIn{from{transform:translateX(100%);opacity:0;}to{transform:translateX(0);opacity:1;}}
.notification-content{display:flex;align-items:center;gap:10px}
.notification-icon{font-size:20px}
.notification-success .notification-icon{color:var(--success)}
.notification-error .notification-icon{color:var(--error)}
.notification-info .notification-icon{color:var(--info)}
.notification-warning .notification-icon{color:var(--warning)}
.notification-text{flex:1;font-size:14px}
.notification-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:16px}

.new-messages-btn {
  position: absolute; bottom: 100px; left: 30px; z-index: 100;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #04202b; padding: 10px 18px; border-radius: 999px; font-weight: 700;
  box-shadow: 0 15px 50px rgba(2,6,23,0.7); cursor: pointer; display: none;
  align-items: center; gap: 8px; border: none; font-family: inherit;
  animation: pulse-button 2s infinite; transition: transform 0.2s;
}
.new-messages-btn:hover { transform: translateY(-3px); box-shadow: 0 20px 60px rgba(2,6,23,0.8); animation: none; }

.info-section{background:var(--glass);border-radius:12px;padding:15px;margin-top:20px;border:1px solid var(--glass-2);position:relative;overflow:hidden;}
.info-section::before{content:'';position:absolute;top:0;right:0;width:100%;height:100%;background:linear-gradient(45deg,transparent,rgba(255,255,255,0.02),transparent);transform:translateX(-100%);}
.info-section:hover::before{animation:shine 0.6s;}
.info-title{display:flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--accent-2);font-weight:700}
.info-content{font-size:13px;color:var(--muted);line-height:1.5}

/* أدوات تحكم إضافية */
.chat-toolbar{
  display:flex; gap:8px; padding:8px 20px; background:var(--glass); border-bottom:1px solid var(--glass-2);
}
.tool-btn{
  background:transparent; border:none; color:var(--muted); font-size:14px; cursor:pointer; padding:4px 8px; border-radius:6px;
  display:flex; align-items:center; gap:4px; transition:all 0.2s;
}
.tool-btn:hover{ background:var(--accent-2); color:white; }
.font-size-slider{ width:100px; margin:0 8px; }

/* ===== الحركات ===== */
@keyframes spin{100%{transform:rotate(360deg);}}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1;}50%{transform:scale(1.05);opacity:0.8;}}
@keyframes pulse-badge{0%,100%{transform:scale(1);}50%{transform:scale(1.05);}}
@keyframes pulse-count{0%,100%{box-shadow:0 0 0 0 var(--pulse-color);}50%{box-shadow:0 0 0 5px var(--pulse-color);}}
@keyframes pulse-button{0%,100%{box-shadow:0 15px 50px rgba(2,6,23,0.7);}50%{box-shadow:0 15px 50px rgba(2,6,23,0.7), 0 0 20px var(--glow-color);}}
@keyframes glow{0%,100%{filter:drop-shadow(0 0 2px currentColor);}50%{filter:drop-shadow(0 0 5px currentColor);}}
@keyframes shine{0%{transform:translateX(-100%);}100%{transform:translateX(100%);}}
@keyframes slideUp{from{transform:translateY(20px);opacity:0;}to{transform:translateY(0);opacity:1;}}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .app-container{grid-template-columns:280px 1fr;padding:15px;gap:15px}
}

@media (max-width:768px){
  html,body{overflow: hidden; height: 100%;}
  .app-container{grid-template-columns:1fr;height:100vh;margin:0;padding:0;gap:0;overflow:hidden}
  .sidebar-panel{position:fixed;top:0;right:-100%;width:85%;max-width:320px;height:100vh;z-index:1000;transition:right .3s ease;border-radius:0;box-shadow:0 0 40px rgba(0,0,0,0.5);}
  .sidebar-panel.active{right:0}
  .chat-panel{width:100%; height:100vh; border-radius:0; margin:0; display: flex; flex-direction: column;}
  .chat-header{padding:12px 16px; border-radius:0;}
  .chat-title{font-size:18px; max-width: 70%;}
  .chat-subtitle{display: none;}
  .mobile-toggle{display:block !important; z-index:1001;}
  .messages-container{flex:1 1 0; min-height:0;}
  .message-wrapper{max-width:85%;}
  .message-composer{padding:10px; border-radius:0;}
  .composer-input{padding:10px; font-size:16px;} /* منع التكبير على iOS */
  .composer-btn{width:44px; height:44px;}
  .emoji-picker-container{width:300px; inset-inline-end:10px; bottom:70px;}
  .emoji-grid{grid-template-columns:repeat(7,1fr);}
  .new-messages-btn{bottom:80px; left:20px;}
  .info-section{display: none;} /* توفير مساحة */
  .chat-toolbar{ overflow-x:auto; }
}

/* شاشات صغيرة جداً */
@media (max-width:480px){
  .chat-title{font-size:16px; max-width: 65%;}
  .connection-status span:last-child{display: none;} /* إخفاء النص، نكتفي بالنقطة */
  .connection-status .status-indicator{width:12px; height:12px;}
  .message-wrapper{max-width:90%;}
  .message-bubble{ font-size:15px; }
}

.mobile-toggle{display:none;position:fixed;top:15px;right:15px;z-index:1001;width:45px;height:45px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));border:none;color:#04202b;font-size:20px;cursor:pointer;box-shadow:0 8px 24px rgba(2,6,23,0.6);animation:pulse 2s infinite;}
@media (prefers-reduced-motion: reduce) { 
  * { animation: none !important; transition: none !important; } 
  #bgCanvas { display: none; }
  .floating-emoji, .click-ripple { display: none; }
}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}