/* Add CSS variables for the sidebar */
:root {
    /* Animation variables */
    --transition-speed: 0.3s;
    --bounce-timing: cubic-bezier(0.34, 1.56, 0.64, 1);
    --sidebar-width: 300px;
    
    /* Brand Colors */
    --bec-blue: #0a3d62;
    --bec-light-blue: #3c6382;
    --bec-accent-gold: #D4AF37;
    --bec-light-gray: #F0F4F8;
    --bec-text-light: #FFFFFF;

    /* Enhanced Light Theme Colors */
    --primary-color: #2563eb; /* Modern blue */
    --primary-color-rgb: 37, 99, 235;
    --secondary-color: #64748b; /* Slate gray */
    --text-color: #1e293b; /* Slate 800 */
    --light-text: #f8fafc; /* Slate 50 */
    --border-color: #e2e8f0; /* Slate 200 */
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --hover-color: #f1f5f9; /* Slate 100 */
    
    /* Light theme specific */
    --bg-color: #f8fafc; /* Slate 50 */
    --sidebar-bg-light-start: #ffffff;
    --sidebar-bg-light-end: #f1f5f9; /* Slate 100 */
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --overlay-bg: rgba(248, 250, 252, 0.85);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --sidebar-text-color-light: #334155; /* Slate 700 */
    --sidebar-border-color-light: #e2e8f0; /* Slate 200 */
    
    /* Accent Colors */
    --success-color: #22c55e; /* Green 500 */
    --warning-color: #f59e0b; /* Amber 500 */
    --error-color: #ef4444; /* Red 500 */
    --info-color: #3b82f6; /* Blue 500 */

    /* Shape System */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* Shadow System */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Dark theme */
[data-theme="dark"] {
    --primary-color: #3b82f6; /* Blue 500 */
    --primary-color-rgb: 59, 130, 246;
    --secondary-color: #94a3b8; /* Slate 400 */
    --text-color: #f1f5f9; /* Slate 100 */
    --border-color: #334155; /* Slate 700 */
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    --hover-color: #1e293b; /* Slate 800 */
    --bg-color: #0f172a; /* Slate 900 */
    --sidebar-bg-dark-start: #1e293b; /* Slate 800 */
    --sidebar-bg-dark-end: #0f172a; /* Slate 900 */
    --card-bg: #1e293b; /* Slate 800 */
    --input-bg: #334155; /* Slate 700 */
    --overlay-bg: rgba(15, 23, 42, 0.75); /* Slate 900 */
    --glass-bg: rgba(30, 41, 59, 0.7); /* Slate 800 */
    --glass-border: rgba(51, 65, 85, 0.2); /* Slate 700 */
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --sidebar-text-color-dark: var(--bec-light-gray);
    --sidebar-border-color-dark: #334155; /* Slate 700 */
}

/* Splash Screen */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bec-blue) 0%, var(--bec-light-blue) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s var(--bounce-timing);
    color: var(--bec-text-light);
    backdrop-filter: blur(10px);
}

.splash-logo {
    width: 200px;
    margin-bottom: 24px;
    animation: logoReveal 1.4s var(--bounce-timing);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
}

@keyframes logoReveal {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(-30px);
    }
    50% {
        transform: scale(1.05) translateY(5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.splash-text {
    font-size: 1.5em;
    font-weight: 500;
    color: var(--bec-text-light);
    margin-bottom: 32px;
    opacity: 0;
    animation: textFade 0.8s var(--bounce-timing) 0.4s forwards;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.5px;
}

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

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-left-color: var(--bec-accent-gold);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    opacity: 0;
    animation-delay: 0.6s;
    animation-fill-mode: forwards;
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: rotate(360deg);
        opacity: 1;
    }
}

/* Main container */
.main-container {
    display: flex;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

/* Sidebar styles */
.sidebar {
    width: var(--sidebar-width);
    height: 100%;
    background: linear-gradient(135deg, var(--bec-blue) 0%, var(--bec-light-blue) 100%);
    border-right: none;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: all 0.3s var(--bounce-timing);
    box-shadow: 0 8px 32px rgba(10, 61, 98, 0.15);
    border-radius: 0 var(--radius-2xl) var(--radius-2xl) 0;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-lg);
}

.sidebar-header {
    padding: 32px 24px 24px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 0 0 var(--radius-xl) 0;
}

.sidebar-logo {
    width: 140px;
    margin-bottom: 16px;
    filter: drop-shadow(0 2px 8px rgba(10, 61, 98, 0.2));
}

.sidebar-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--bec-accent-gold) transparent;
}

.sidebar-content::-webkit-scrollbar {
    width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--bec-accent-gold);
    border-radius: 10px;
    border: 2px solid transparent;
}

.sidebar-section {
    margin-bottom: 24px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-sm);
    color: #fff;
    transition: transform 0.2s var(--bounce-timing);
}

.sidebar-section:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.15);
}

.sidebar-section h3 {
    color: var(--bec-accent-gold);
    font-size: 1.1em;
    margin-bottom: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding-bottom: 8px;
}

.sidebar-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95em;
    line-height: 1.6;
    margin: 0;
}

.sidebar-footer {
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.05);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.theme-selector, .language-selector {
    display: flex;
    gap: 8px;
}

.theme-btn, .lang-btn {
    flex: 1;
    padding: 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 500;
    transition: all 0.2s var(--bounce-timing);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: var(--shadow-sm);
}

.theme-btn.active, .lang-btn.active {
    background: var(--bec-accent-gold);
    color: var(--bec-blue);
    border-color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.theme-btn:hover:not(.active), .lang-btn:hover:not(.active) {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.main-container {
    display: flex;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-color) 0%, var(--bg-color) 100%);
    transition: background 0.3s ease;
}

/* Sidebar styles */
.sidebar {
    width: var(--sidebar-width);
    height: 100%;
    background: linear-gradient(180deg, var(--sidebar-bg-light-start, #ffffff), var(--sidebar-bg-light-end, #f8f9fa));
    border-right: 1px solid var(--sidebar-border-color-light, var(--border-color));
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: background 0.3s ease, border-color 0.3s ease; 
    box-shadow: var(--shadow);
}

[data-theme="dark"] .sidebar {
    background: linear-gradient(180deg, var(--sidebar-bg-dark-start, #2c3e50), var(--sidebar-bg-dark-end, #1a252f));
    border-right: 1px solid var(--sidebar-border-color-dark, var(--border-color));
}

.sidebar-header {
    padding: 25px 20px; 
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid var(--sidebar-border-color-light, var(--border-color));
    transition: border-color 0.3s ease;
}

[data-theme="dark"] .sidebar-header {
    border-bottom: 1px solid var(--sidebar-border-color-dark, var(--border-color));
}

.sidebar-logo {
    width: 160px; 
    height: auto;
    filter: drop-shadow(0 2px 3px rgba(0,0,0,0.1));
}

.sidebar-content {
    flex: 1;
    padding: 25px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-color) transparent;
}

.sidebar-content::-webkit-scrollbar {
    width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background-color: var(--secondary-color);
    border-radius: 10px;
    border: 1px solid transparent; 
}

.sidebar-section {
    margin-bottom: 25px; 
    padding: 15px;
    background-color: rgba(0,0,0,0.03); /* Default for light theme */
    border-radius: var(--border-radius, 8px);
    border: 1px solid rgba(0,0,0,0.05); /* Default for light theme */
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .sidebar-section {
    background-color: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}

.sidebar-section h3 {
    color: var(--sidebar-text-color-light, var(--primary-color));
    font-size: 1.1em; 
    margin-bottom: 12px;
    font-weight: 500; 
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--sidebar-border-color-light, var(--border-color));
    padding-bottom: 8px;
    transition: color 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .sidebar-section h3 {
    color: var(--sidebar-text-color-dark, var(--light-text));
    border-bottom: 1px solid var(--sidebar-border-color-dark, var(--border-color));
}

.sidebar-section p {
    color: var(--sidebar-text-color-light, var(--text-color));
    font-size: 0.95em; 
    line-height: 1.7;
    transition: color 0.3s ease;
}

[data-theme="dark"] .sidebar-section p {
    color: var(--sidebar-text-color-dark, var(--text-color)); /* Ensure this uses the correct dark theme text color */
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--sidebar-border-color-light, var(--border-color));
    background-color: rgba(0,0,0,0.02); 
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

[data-theme="dark"] .sidebar-footer {
    border-top: 1px solid var(--sidebar-border-color-dark, var(--border-color));
    background-color: rgba(255,255,255,0.03);
}

.theme-btn, .lang-btn { 
    flex: 1;
    max-width: 120px; 
    padding: 10px 15px;
    background-color: transparent; 
    border: 1px solid var(--sidebar-text-color-light, var(--primary-color));
    color: var(--sidebar-text-color-light, var(--primary-color));
    border-radius: var(--border-radius, 8px);
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

[data-theme="dark"] .theme-btn, [data-theme="dark"] .lang-btn {
    border: 1px solid var(--sidebar-text-color-dark, var(--light-text));
    color: var(--sidebar-text-color-dark, var(--light-text));
}

.theme-btn.active, .lang-btn.active {
    background-color: var(--primary-color);
    color: var(--bec-text-light, white) !important; 
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .theme-btn.active, [data-theme="dark"] .lang-btn.active {
    background-color: var(--primary-color); 
    border-color: var(--primary-color);
    color: var(--bec-text-light, white) !important; /* Ensure text is light on active for dark theme too */
}

.theme-btn:hover:not(.active), .lang-btn:hover:not(.active) {
    background-color: var(--primary-color);
    color: var(--bec-text-light, white);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .theme-btn:hover:not(.active), [data-theme="dark"] .lang-btn:hover:not(.active) {
    background-color: var(--primary-color); 
    border-color: var(--primary-color);
    color: var(--bec-text-light, white);
}

/* Menu toggle button */
.menu-toggle {
    display: none; /* Hidden by default, shown on mobile */
    background: none;
    border: none;
    font-size: 20px;
    color: var(--primary-color);
    cursor: pointer;
    margin-right: 15px;
}

/* Chatbot container styles */
.chatbot-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--bg-color);
    position: relative;
    overflow: hidden;
}

.chatbot-header {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    z-index: 10;
    box-shadow: var(--shadow-md);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.chatbot-logo {
    height: 32px;
    margin-right: 16px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header-actions {
    display: flex;
    margin-left: auto;
    gap: 12px;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(var(--primary-color-rgb), 0.1);
    border: none;
    color: var(--primary-color);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s var(--bounce-timing);
    box-shadow: var(--shadow-sm);
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
    background: linear-gradient(180deg, var(--bg-color) 0%, var(--card-bg) 100%);
}

.message {
    max-width: 75%;
    animation: messageSlide 0.3s var(--bounce-timing);
    position: relative;
}

.message.bot {
    align-self: flex-start;
}

.message.user {
    align-self: flex-end;
}

.message-content {
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    line-height: 1.5;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.message.bot .message-content {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    border-top-left-radius: var(--radius-sm);
}

.message.user .message-content {
    background: var(--primary-color);
    color: white;
    border-top-right-radius: var(--radius-sm);
}

.chatbot-input {
    padding: 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
}

.input-wrapper {
    position: relative;
    flex: 1;
}

#user-input {
    width: 100%;
    padding: 16px 88px 16px 24px; /* increased right padding for both buttons */
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 0.95rem;
    transition: all 0.3s var(--bounce-timing);
    box-shadow: var(--shadow-sm);
    resize: none;
    min-height: 24px;
    max-height: 120px;
    line-height: 1.5;
}
.suggestions-container {
    display: flex;
    flex-direction: column; /* Stack items vertically for one question per line */
    gap: 12px; /* Slightly increased gap for better spacing */
    padding: 16px; /* Increased padding for a more spacious feel */
    max-width: 800px; /* Wider container */
    margin: 0 auto; /* Center the container */
}

.suggestion-btn {
    background-color: transparent; /* Transparent background */
    color: var(--primary-color, #007bff); /* Text color matches border for consistency */
    border: 2px solid var(--primary-color, #007bff); /* Border with primary color */
    border-radius: 5px;
    padding: 12px 20px; /* Slightly larger padding for better appearance */
    cursor: pointer;
    font-size: 14px;
    transition: border-color 0.3s ease, color 0.3s ease; /* Smooth transition for border and text */
    width: 100%; /* Full width for uniform container size */
    text-align: center; /* Center text within button */
    box-sizing: border-box; /* Ensure padding doesn't affect width */
}

.suggestion-btn:hover {
    border-color: var(--primary-hover, #0056b3); /* Darker border on hover */
    color: var(--primary-hover, #0056b3); /* Text color matches hover border */
}

.suggestion-btn:focus {
    outline: 2px solid var(--focus-color, #0056b3);
    outline-offset: 2px;
}

[data-theme="dark"] .suggestion-btn {
    background-color: transparent; /* Transparent background in dark mode */
    color: var(--dark-primary, #4a90e2); /* Text color matches dark mode border */
    border: 2px solid var(--dark-primary, #4a90e2); /* Border with dark mode primary color */
}

[data-theme="dark"] .suggestion-btn:hover {
    border-color: var(--dark-primary-hover, #357abd); /* Darker border on hover in dark mode */
    color: var(--dark-primary-hover, #357abd); /* Text color matches hover border */
}

.message.suggestion {
    text-align: center;
    margin: 12px 0; /* Consistent margin with increased spacing */
    display: flex;
    flex-direction: row; /* Aligns items in a row */
    gap: 8px; /* Optional: Adds space between buttons */
}
.suggestion-btn.next-question-btn {
    
    background-color: transparent; /* لا خلفية */
    border: 1px solid #676d6f; /* إطار باهت جدًا */
    border-radius: 5px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    color:  #7d8d94; /* لون نص باهت جدًا */
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    margin: 2px;
}

.suggestion-btn.next-question-btn:hover {
    background-color: #d1d5d600; /* خلفية شبه بيضاء عند التحويم */
    border-color: #357abd; /* إطار باهت قليلاً عند التحويم */
    color: #7d8d94; /* نص أغمق قليلًا لكنه لا يزال باهتًا */
}

@media (max-width: 600px) {
    .message.suggestion {
        text-align: center;
        margin: 12px 0; /* Consistent margin with increased spacing */
        flex-direction: column; /* Stack items vertically for one question per line */
        
    }
    .suggestions-container {
        flex-direction: column;
        align-items: stretch;
    }
    .suggestion-btn {
        width: 100%;
        text-align: center;
    }
}
#user-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.15);
    outline: none;
}

#record-btn {
    position: absolute;
    right: 74px; /* positioned before send button */
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--secondary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s var(--bounce-timing);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

#record-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: var(--shadow-lg);
}

#record-btn.recording {
    background: var(--error-color);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

#send-btn {
    position: absolute;
    right: 30px; /* moved slightly to accommodate record button */
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s var(--bounce-timing);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

#send-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: var(--shadow-lg);
    background: var(--primary-color);
}

#send-btn:active {
    transform: translateY(-50%) scale(0.95);
}

#send-btn:disabled {
    background: var(--secondary-color);
    cursor: not-allowed;
    transform: translateY(-50%) scale(1);
    box-shadow: none;
}

/* Input Actions */
.input-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.input-action-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: rgba(var(--primary-color-rgb), 0.1);
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s var(--bounce-timing);
}

.input-action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Character Counter */
.char-counter {
    position: absolute;
    right: 60px;
    bottom: 8px;
    font-size: 0.8rem;
    color: var(--secondary-color);
    pointer-events: none;
    transition: all 0.3s ease;
}

/* Input Placeholder Animation */
#user-input::placeholder {
    color: var(--secondary-color);
    transition: all 0.3s ease;
}

#user-input:focus::placeholder {
    opacity: 0.7;
    transform: translateX(8px);
}

/* RTL Support for Input Area */
[dir="rtl"] .input-wrapper {
    flex-direction: row-reverse;
}

[dir="rtl"] #user-input {
    padding: 16px 24px 16px 60px;
}

[dir="rtl"] #send-btn {
    right: auto;
    left: 8px;
}

[dir="rtl"] .char-counter {
    right: auto;
    left: 60px;
}

[dir="rtl"] #user-input:focus::placeholder {
    transform: translateX(-8px);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .chatbot-input {
        padding: 16px;
    }

    .input-actions {
        display: none;
    }

    #user-input {
        padding: 14px 50px 14px 16px;
        font-size: 0.9rem;
    }

    #send-btn {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .char-counter {
        font-size: 0.75rem;
        right: 50px;
    }
}

@media (max-width: 480px) {
    .chatbot-input {
        padding: 12px;
    }

    #user-input {
        padding: 12px 46px 12px 12px;
    }

    #send-btn {
        width: 32px;
        height: 32px;
        right: 6px;
    }

    .char-counter {
        right: 46px;
        bottom: 6px;
    }
}

/* Enhanced Focus States */
.input-wrapper:focus-within {
    transform: translateY(-2px);
}

.input-wrapper:focus-within #user-input {
    box-shadow: var(--shadow-md);
}

/* Loading State */
#send-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

#send-btn.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Voice Input Button */
.voice-input-btn {
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: transparent;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all 0.3s var(--bounce-timing);
}

.voice-input-btn:hover {
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

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

@keyframes pulse {
    0% {
        transform: translateY(-50%) scale(1);
    }
    50% {
        transform: translateY(-50%) scale(1.1);
    }
    100% {
        transform: translateY(-50%) scale(1);
    }
}

.welcome-banner {
    text-align: center;
    padding: 32px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-xl);
    margin: 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    animation: bannerFade 0.6s var(--bounce-timing);
}

.welcome-icon {
    font-size: 48px;
    color: var(--primary-color);
    background: rgba(var(--primary-color-rgb), 0.1);
    width: 96px;
    height: 96px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    border: 2px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

.welcome-banner h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.welcome-banner p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* RTL Support for Arabic */
[dir="rtl"] .message.bot {
    align-self: flex-end;
}

[dir="rtl"] .message.user {
    align-self: flex-start;
}

[dir="rtl"] .message.bot .message-content {
    border-top-left-radius: 18px;
    border-top-right-radius: 4px;
}

[dir="rtl"] .message.user .message-content {
    border-top-right-radius: 18px;
    border-top-left-radius: 4px;
}

[dir="rtl"] .menu-toggle {
    margin-right: 0;
    margin-left: 15px;
}

[dir="rtl"] .chatbot-logo {
    margin-right: 0;
    margin-left: 15px;
}

/* RTL Support for new elements */
[dir="rtl"] .header-actions {
    margin-left: 0;
    margin-right: auto;
}

/* Responsive Design */
@media (max-width: 992px) {
    .sidebar {
        position: fixed;
        transform: translateX(-100%);
        box-shadow: 0 0 40px rgba(10, 61, 98, 0.2);
        transition: transform 0.3s var(--bounce-timing);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: rgba(var(--primary-color-rgb), 0.1);
        border-radius: 12px;
        color: var(--primary-color);
        font-size: 1.2rem;
        cursor: pointer;
        transition: all 0.2s var(--bounce-timing);
    }

    .menu-toggle:hover {
        background: var(--primary-color);
        color: white;
        transform: translateY(-2px);
    }
    
    .chatbot-messages {
        padding: 20px;
    }
    
    [dir="rtl"] .sidebar {
        transform: translateX(100%);
        right: 0;
        left: auto;
    }
    
    [dir="rtl"] .sidebar.active {
        transform: translateX(0);
    }
}

@media (max-width: 768px) {
    #user-input {
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    .chatbot-title {
        font-size: 1.1rem;
    }

    .sidebar-logo {
        width: 120px;
    }

    .sidebar-section h3 {
        font-size: 1rem;
    }

    .sidebar-section p {
        font-size: 0.9rem;
    }

    .lang-btn {
        padding: 8px;
        font-size: 0.9rem;
    }

    .welcome-banner {
        padding: 24px;
        margin: 16px;
    }

    .welcome-icon {
        font-size: 36px;
        width: 72px;
        height: 72px;
    }

    .welcome-banner h2 {
        font-size: 1.3rem;
    }

    .welcome-banner p {
        font-size: 0.9rem;
    }

    .action-btn {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .chatbot-messages {
        padding: 16px;
    }

    .chatbot-header {
        padding: 12px 16px;
    }

    .message {
        max-width: 85%;
    }

    #send-btn {
        width: 40px;
        height: 40px;
        right: 24px;
        bottom: 24px;
    }

    .sidebar {
        width: 85%;
    }

    .welcome-banner {
        padding: 20px;
        margin: 12px;
    }

    .header-actions {
        gap: 8px;
    }

    .action-btn {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

.hero-section {
    position: relative;
    height: 80vh;
    width: 100%;
    background: url('hero-bg.webp') center/cover no-repeat fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10,61,98,0.85) 0%, rgba(60,99,130,0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 4em;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.5em;
    font-weight: 300;
    margin: 0;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 1em;
    font-weight: 500;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--bec-accent-gold);
    transition: width 0.3s;
}

.nav-link:hover {
    color: var(--bec-accent-gold);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: 15px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.2em;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s;
}

.nav-btn:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

/* Animations */
@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bannerFade {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes typing {
    0%, 100% { 
        transform: translateY(0);
        opacity: 0.7;
    }
    50% { 
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    width: fit-content;
    margin: 8px 0;
    box-shadow: var(--shadow-sm);
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typing 1.4s infinite;
    opacity: 0.7;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

/* RTL Support */
[dir="rtl"] .message.bot {
    align-self: flex-end;
}

[dir="rtl"] .message.user {
    align-self: flex-start;
}

[dir="rtl"] .message.bot .message-content {
    border-top-left-radius: 18px;
    border-top-right-radius: 4px;
}

[dir="rtl"] .message.user .message-content {
    border-top-right-radius: 18px;
    border-top-left-radius: 4px;
}

[dir="rtl"] .menu-toggle {
    margin-right: 0;
    margin-left: 16px;
}

[dir="rtl"] .chatbot-logo {
    margin-right: 0;
    margin-left: 16px;
}

[dir="rtl"] .header-actions {
    margin-left: 0;
    margin-right: auto;
}

/* Enhanced glass effect */
.glass-effect {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Smooth transitions */
.sidebar,
.chatbot-header,
.message-content,
#user-input,
#send-btn,
.welcome-banner,
.action-btn,
.theme-btn,
.lang-btn {
    transition: all 0.3s var(--bounce-timing);
}

/* Enhanced focus states */
#user-input:focus {
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.15);
    border-color: var(--primary-color);
}

/* Improved button interactions */
button {
    position: relative;
    overflow: hidden;
}

button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: inherit;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
}

button:active::after {
    transform: translate(-50%, -50%) scale(2);
    opacity: 1;
    transition: 0s;
}

/* Scrollbar styles for chatbot-messages */
.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
    background: linear-gradient(180deg, var(--bg-color) 0%, var(--card-bg) 100%);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-color);
}

.chatbot-messages::-webkit-scrollbar {
    width: 8px; /* Slightly wider for a modern look */
}

.chatbot-messages::-webkit-scrollbar-track {
    background: var(--bg-color); /* Matches chat background */
    border-radius: var(--radius-md); /* Rounded track for sleekness */
}

.chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color); /* Primary color for thumb */
    border-radius: var(--radius-md); /* Rounded thumb */
    border: 2px solid var(--bg-color); /* Subtle padding effect */
    transition: background 0.3s var(--bounce-timing);
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: var(--bec-accent-gold); /* Accent gold on hover */
}

/* Dark theme scrollbar */
[data-theme="dark"] .chatbot-messages {
    scrollbar-color: var(--primary-color) var(--bg-color);
}

[data-theme="dark"] .chatbot-messages::-webkit-scrollbar-track {
    background: var(--bg-color); /* Matches dark theme background */
}

[data-theme="dark"] .chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color); /* Consistent with light theme */
    border: 2px solid var(--bg-color);
}

[data-theme="dark"] .chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: var(--bec-accent-gold); /* Same hover effect */
}

/* Voice message styles */
.voice-message {
    max-width: 300px;
}

.voice-player {
    background: var(--message-bg);
    border-radius: 20px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
}

.voice-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.voice-loading-dots {
    display: flex;
    gap: 4px;
}

.voice-loading-dots .dot {
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: voiceLoading 1.4s infinite ease-in-out;
}

.voice-loading-dots .dot:nth-child(1) { animation-delay: -0.32s; }
.voice-loading-dots .dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes voiceLoading {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

.voice-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.voice-play-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.voice-play-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.voice-waveform {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
}

.wave-bar {
    width: 3px;
    height: 12px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all 0.2s ease;
}

.voice-waveform.playing .wave-bar {
    background: var(--primary-color);
    animation: waveAnimation 1s infinite ease-in-out;
}

.voice-waveform.playing .wave-bar:nth-child(1) { animation-delay: 0s; }
.voice-waveform.playing .wave-bar:nth-child(2) { animation-delay: 0.1s; }
.voice-waveform.playing .wave-bar:nth-child(3) { animation-delay: 0.2s; }
.voice-waveform.playing .wave-bar:nth-child(4) { animation-delay: 0.3s; }
.voice-waveform.playing .wave-bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes waveAnimation {
    0%, 100% { height: 12px; }
    50% { height: 20px; }
}

.voice-duration {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.voice-error {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--error-color, #e74c3c);
}

/* Voice toggle button styles */
.voice-toggle-btn {
    position: relative;
    transition: all 0.3s ease;
}

.voice-toggle-btn.active {
    background: var(--primary-color) !important;
    color: white !important;
}

.voice-toggle-btn.active:hover {
    background: var(--primary-hover, #0056b3) !important;
}

.voice-toggle-btn::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background: #28a745;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.voice-toggle-btn.active::after {
    opacity: 1;
}