/* ============================================
   عزيزAi - منصة الدردشة الذكية التقنية
   ============================================ */

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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --bg-dark: #1e293b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --message-user-bg: #2563eb;
    --message-ai-bg: #f1f5f9;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow: hidden;
}

/* ============================================
   صفحة الدردشة
   ============================================ */

.chat-container {
    display: flex;
    height: 100vh;
    background-color: var(--bg-color);
}

/* الشريط الجانبي */
.sidebar {
    width: 280px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    box-shadow: -2px 0 4px rgba(0, 0, 0, 0.05);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 15px;
}

.logo-img {
    width: 80px;
    height: 80px;
    margin-bottom: 10px;
    object-fit: contain;
}

.sidebar-header h2 {
    font-size: 24px;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 15px;
}

.btn-new-chat {
    width: 100%;
    padding: 10px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s;
}

.btn-new-chat:hover {
    background-color: var(--primary-dark);
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 15px 0;
}

.chat-history h3 {
    padding: 0 20px;
    margin-bottom: 10px;
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
}

.chat-history ul {
    list-style: none;
}

.chat-history li {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--text-color);
    border-right: 3px solid transparent;
    transition: all 0.3s;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-history li:hover {
    background-color: var(--bg-color);
    border-right-color: var(--primary-color);
}

.chat-history li.active {
    background-color: var(--bg-color);
    border-right-color: var(--primary-color);
    font-weight: 600;
}

/* منطقة الدردشة الرئيسية */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: white;
}

.chat-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.chat-header h2 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-light);
    font-size: 13px;
}

/* منطقة الرسائل */
.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.welcome-message {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.welcome-content {
    text-align: center;
    color: var(--text-light);
    max-width: 500px;
}

.welcome-content h2 {
    font-size: 28px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.welcome-content p {
    margin: 5px 0;
    font-size: 15px;
}

.example-questions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.example-title {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 15px;
}

.example-btn {
    display: block;
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-color);
    font-size: 13px;
    transition: all 0.3s;
    text-align: right;
}

.example-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateX(-5px);
}

.message {
    display: flex;
    margin-bottom: 10px;
    animation: slideIn 0.3s ease;
}

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

.message.user {
    justify-content: flex-end;
}

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

.message-content {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 12px;
    word-wrap: break-word;
    line-height: 1.5;
}

.message.user .message-content {
    background-color: var(--message-user-bg);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.ai .message-content {
    background-color: var(--message-ai-bg);
    color: var(--text-color);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
}

.message-time {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 5px;
    text-align: center;
}

/* منطقة الإدخال */
.input-area {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background-color: white;
}

.input-wrapper {
    display: flex;
    gap: 10px;
    align-items: center;
}

.message-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.message-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-voice,
.btn-send {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-voice:hover,
.btn-send:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.btn-voice.recording {
    background-color: var(--danger-color);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
    }
}

/* مؤشر التسجيل الصوتي */
.voice-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding: 10px;
    background-color: var(--bg-color);
    border-radius: 6px;
}

.voice-indicator.hidden {
    display: none;
}

.recording-dot {
    width: 12px;
    height: 12px;
    background-color: var(--danger-color);
    border-radius: 50%;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

#recordingTime {
    font-weight: 600;
    color: var(--danger-color);
    min-width: 50px;
}

.btn-stop-recording {
    padding: 6px 12px;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
}

.btn-stop-recording:hover {
    background-color: #dc2626;
}

/* ============================================
   التمرير
   ============================================ */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* ============================================
   الاستجابة للأجهزة الصغيرة
   ============================================ */

@media (max-width: 768px) {
    .chat-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        border-left: none;
        border-bottom: 1px solid var(--border-color);
        max-height: 200px;
    }

    .chat-history {
        max-height: 100px;
    }

    .message-content {
        max-width: 85%;
    }

    .logo-img {
        width: 60px;
        height: 60px;
    }

    .sidebar-header h2 {
        font-size: 20px;
    }
}

/* ============================================
   الحالات الخاصة
   ============================================ */

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(37, 99, 235, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

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

.error-message {
    background-color: #fee2e2;
    color: #991b1b;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 10px;
    border-left: 4px solid var(--danger-color);
}

.success-message {
    background-color: #dcfce7;
    color: #166534;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 10px;
    border-left: 4px solid var(--secondary-color);
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-light);
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.5;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-10px);
    }
}