@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;600;800&display=swap'); /* خط للعربية */

/* --- 🎨 المتغيرات (الألوان) --- */
:root {
    --bg-main: #ffffff;
    --bg-sidebar: #f7f7f8;
    --bg-input: #ffffff;
    --text-primary: #0f0f0f;
    --text-secondary: #6b6b6b;
    --border-color: #e5e5e5;
    --accent-color: #007bff;
    --accent-hover: #0056b3;
    --hover-bg: #ececec;
}

[data-theme="dark"] {
    --bg-main: #212121;
    --bg-sidebar: #171717;
    --bg-input: #2f2f2f;
    --text-primary: #ececec;
    --text-secondary: #b4b4b4;
    --border-color: #333333;
    --accent-color: #00f0ff;
    --accent-hover: #00c3cc;
    --hover-bg: #2f2f2f;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    display: flex;
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

/* خط العربية عند تفعيل اليمين لليسار */
[dir="rtl"] body { font-family: 'Cairo', sans-serif; }
[dir="ltr"] body { font-family: 'Inter', sans-serif; }

/* --- الشريط الجانبي --- */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 15px;
    transition: transform 0.3s ease, left 0.3s, right 0.3s;
}

.sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.sidebar-header h2 { font-size: 20px; font-weight: 800; color: var(--text-primary); }
.close-sidebar { display: none; background: none; border: none; color: var(--text-primary); font-size: 20px; cursor: pointer; }

.new-chat-btn {
    background-color: var(--accent-color); color: #000; border: none; padding: 12px; border-radius: 8px;
    font-weight: 800; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: 0.2s;
}
.new-chat-btn:hover { background-color: var(--accent-hover); }

.history-list { flex: 1; overflow-y: auto; margin-top: 20px; }
.history-title { font-size: 12px; color: var(--text-secondary); font-weight: 600; margin-bottom: 10px; text-transform: uppercase; }
.history-item { display: flex; align-items: center; padding: 10px; color: var(--text-primary); text-decoration: none; border-radius: 6px; font-size: 14px; margin-bottom: 5px; }
.history-item:hover { background-color: var(--hover-bg); }

.sidebar-footer { border-top: 1px solid var(--border-color); padding-top: 15px; display: flex; flex-direction: column; gap: 10px; }
.plan-info { background-color: var(--hover-bg); padding: 10px; border-radius: 8px; text-align: center; }
.plan-badge { font-size: 12px; font-weight: bold; color: var(--accent-color); }
.credits { font-size: 12px; color: var(--text-secondary); margin-top: 5px; }

.upgrade-btn, .settings-btn { background: transparent; border: 1px solid var(--border-color); color: var(--text-primary); padding: 10px; border-radius: 8px; cursor: pointer; font-weight: 600; transition: 0.2s; display: flex; align-items: center; justify-content: center; }
.upgrade-btn:hover { background-color: rgba(0, 240, 255, 0.1); border-color: var(--accent-color); }
.settings-btn:hover { background-color: var(--hover-bg); }

.lang-dropdown { background-color: var(--bg-main); color: var(--text-primary); border: 1px solid var(--border-color); padding: 10px; border-radius: 8px; width: 100%; margin-top: 5px; font-weight: 600; cursor: pointer; outline: none; }
.lang-dropdown:focus { border-color: var(--accent-color); }

/* مسافات الأيقونات (RTL / LTR) */
[dir="ltr"] .new-chat-btn i, [dir="ltr"] .history-item i, [dir="ltr"] .upgrade-btn i, [dir="ltr"] .settings-btn i { margin-right: 10px; }
[dir="rtl"] .new-chat-btn i, [dir="rtl"] .history-item i, [dir="rtl"] .upgrade-btn i, [dir="rtl"] .settings-btn i { margin-left: 10px; }
[dir="rtl"] .sidebar { border-right: none; border-left: 1px solid var(--border-color); }

/* --- المحادثة --- */
.main-content { flex: 1; display: flex; flex-direction: column; position: relative; }
.chat-container { flex: 1; overflow-y: auto; padding: 40px 10%; display: flex; flex-direction: column; justify-content: center; }

.welcome-screen { text-align: center; }
.aura-logo-placeholder { width: 60px; height: 60px; background: var(--accent-color); color: #000; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 20px; }

.input-area { padding: 20px 10%; background-color: var(--bg-main); }
.input-box { display: flex; align-items: flex-end; background-color: var(--bg-input); border: 1px solid var(--border-color); border-radius: 12px; padding: 10px 15px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
.input-box textarea { flex: 1; background: transparent; border: none; color: var(--text-primary); font-size: 16px; resize: none; padding: 10px; outline: none; max-height: 150px; }
.action-btn, .send-btn { background: transparent; border: none; color: var(--text-secondary); font-size: 20px; padding: 10px; cursor: pointer; transition: 0.2s; }
.action-btn:hover { color: var(--text-primary); }
.send-btn { color: var(--accent-color); }

.disclaimer { text-align: center; font-size: 12px; color: var(--text-secondary); margin-top: 10px; }
/* --- 💬 فقاعات المحادثة (Chat Bubbles) --- */
.message {
    display: flex;
    margin-bottom: 24px;
    animation: fadeIn 0.3s ease;
    width: 100%;
}

.message.user {
    justify-content: flex-end; /* رسائل المستخدم على اليمين/اليسار حسب اللغة */
}

.message.ai {
    justify-content: flex-start;
}

.message-content {
    max-width: 80%;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 15px;
    line-height: 1.6;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.message.user .message-content {
    background-color: var(--accent-color);
    color: #ffffff; /* لون النص دائماً أبيض للمستخدم ليكون واضحاً */
    border-bottom-right-radius: 2px;
}

[dir="rtl"] .message.user .message-content {
    border-bottom-right-radius: 12px;
    border-bottom-left-radius: 2px;
}

.message.ai .message-content {
    background-color: var(--hover-bg);
    color: var(--text-primary);
    border-bottom-left-radius: 2px;
}

[dir="rtl"] .message.ai .message-content {
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 2px;
}

/* إخفاء العناصر بمرونة */
.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- الموبايل --- */
.mobile-toggle { display: none; position: absolute; top: 15px; left: 15px; z-index: 1000; background: transparent; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; }
[dir="rtl"] .mobile-toggle { left: auto; right: 15px; }

@media (max-width: 768px) {
    .mobile-toggle { display: block; }
    .sidebar { position: fixed; height: 100%; z-index: 9999; }
    
    [dir="ltr"] .sidebar { left: -260px; }
    [dir="ltr"] .sidebar.active { left: 0; box-shadow: 5px 0 15px rgba(0,0,0,0.5); }
    
    [dir="rtl"] .sidebar { right: -260px; }
    [dir="rtl"] .sidebar.active { right: 0; box-shadow: -5px 0 15px rgba(0,0,0,0.5); }
    
    .close-sidebar { display: block; }
    .chat-container, .input-area { padding-left: 20px; padding-right: 20px; }
}
/* --- ⏳ مؤشر التفكير (Typing Indicator) --- */
.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 5px;
    align-items: center;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}