/* Base Settings */
:root {
    /* Color Palette */
    --primary-red: #FF0000;
    --primary-dark-red: #CC0000;
    --primary-black: #121212;
    --primary-gray: #333333;
    
    /* Legacy Colors - Keeping for backward compatibility */
    --primary-teal: #2DD4BF;
    --primary-pink: #F472B6; 
    --primary-lavender: #C4B5FD;
    --pastel-blue: #93C5FD;
    --pastel-purple: #DDD6FE;
    --pastel-mint: #A7F3D0;
    
    /* Other Colors */
    --bg-color: #FFFFFF;
    --text-color: #1F2937;
    --input-bg: #F3F4F6;
    --bubble-shadow: rgba(0, 0, 0, 0.1);
    --loading-bg: #F9FAFB;
    
    /* Auth Colors */
    --auth-primary: var(--primary-red);
    --auth-secondary: var(--primary-black);
    --auth-button-hover: var(--primary-dark-red);
    --auth-card-bg: #FFFFFF;
    
    /* Dimensions */
    --border-radius-lg: 24px;
    --border-radius-md: 18px;
    --border-radius-sm: 12px;
}

/* Dark Theme Colors */
.dark-theme {
    --bg-color: #111827;
    --text-color: #F9FAFB;
    --input-bg: #1F2937;
    --bubble-shadow: rgba(0, 0, 0, 0.3);
    --loading-bg: #1F2937;
    --auth-card-bg: #1F2937;
}

/* Global Styles */
body {
    font-family: 'Baloo 2', cursive;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: auto;
}

.container-fluid {
    max-width: 1200px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0;
    margin: 0 auto;
}

/* Chat Container */
.chat-container {
    width: 100%;
    max-width: 800px;
    height: 100%;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

/* Header Styles */
.chat-header {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-black));
    padding: 20px;
    text-align: center;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    position: relative;
}

.title {
    font-family: 'Luckiest Guy', cursive;
    font-size: 3rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    margin: 0;
    letter-spacing: 1px;
}

.toggle-container {
    position: absolute;
    top: 15px;
    right: 15px;
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Message Bubbles */
.message {
    display: flex;
    margin-bottom: 15px;
    animation: fadeIn 0.3s ease-in-out;
}

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

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

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-black);
    margin-right: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.message-user .avatar {
    background-color: var(--primary-red);
    margin-left: 10px;
    margin-right: 0;
    order: 2;
}

.bubble {
    max-width: 70%;
    padding: 12px 18px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 2px 10px var(--bubble-shadow);
    overflow-wrap: break-word;
    animation: bubbleIn 0.3s ease;
}

.message-user .bubble {
    background-color: var(--primary-red);
    color: white;
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 var(--border-radius-md);
}

.message-assistant .bubble {
    background-color: var(--primary-black);
    color: white;
    border-radius: var(--border-radius-md) var(--border-radius-md) var(--border-radius-md) 0;
}

/* Typing Indicator */
.typing-indicator {
    display: none;
    padding: 10px 20px;
    background-color: var(--loading-bg);
    border-radius: var(--border-radius-sm);
    margin: 10px 20px;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.typing-indicator .bubble {
    display: flex;
    align-items: center;
    background-color: var(--primary-black);
    padding: 8px 16px;
    border-radius: 18px;
    margin-right: 10px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.typing-indicator .dot {
    height: 8px;
    width: 8px;
    border-radius: 50%;
    background-color: white;
    margin: 0 3px;
    animation: bounce 1.3s linear infinite;
}

.typing-indicator .dot:nth-child(2) {
    animation-delay: 0.15s;
}

.typing-indicator .dot:nth-child(3) {
    animation-delay: 0.3s;
}

.typing-text {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.8;
}

/* Input Area */
.chat-input-container {
    padding: 15px;
    background-color: var(--bg-color);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.input-group {
    display: flex;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    background-color: var(--input-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

#message-input {
    border: none;
    background-color: var(--input-bg);
    color: var(--text-color);
    padding: 12px 15px;
    resize: none;
    font-size: 16px;
    box-shadow: none;
    transition: height 0.2s ease;
}

#message-input:focus {
    outline: none;
    box-shadow: none;
}

.btn-send {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-black));
    color: white;
    border: none;
    padding: 0 20px;
    font-size: 18px;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.btn-send:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, var(--primary-dark-red), var(--primary-gray));
}

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

@keyframes bubbleIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* Authentication Styles */
.auth-bar {
    background-color: var(--primary-black);
    padding: 10px 0;
    color: white;
}

.welcome-text {
    color: white;
    margin-top: 5px;
}

.auth-card {
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    border: none;
    margin-bottom: 30px;
}

.auth-card .card-header {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-black));
    color: white;
    border-bottom: none;
    padding: 20px;
}

.auth-card .card-title {
    margin-bottom: 0;
    font-family: 'Baloo 2', cursive;
    font-weight: 600;
}

.auth-card .card-body {
    padding: 30px;
    background-color: var(--auth-card-bg);
}

.auth-card .card-footer {
    background-color: rgba(0, 0, 0, 0.03);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 15px;
}

.auth-card .form-label {
    font-weight: 600;
}

.auth-card .btn-primary {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
    font-weight: 600;
    padding: 10px 15px;
}

.auth-card .btn-primary:hover, 
.auth-card .btn-primary:focus {
    background-color: var(--primary-dark-red);
    border-color: var(--primary-dark-red);
}

.welcome-container {
    padding-top: 30px;
}

.welcome-card {
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    border: none;
    padding: 40px;
}

.welcome-icon {
    color: var(--primary-red);
    margin-bottom: 20px;
}

.btn-outline-light:hover {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
}

.navbar-dark {
    background-color: var(--primary-black);
}

.navbar-brand {
    font-family: 'Luckiest Guy', cursive;
    font-size: 1.8rem;
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container-fluid {
        padding: 10px;
        height: auto;
        min-height: 100vh;
    }
    
    .chat-container {
        height: 85vh;
        min-height: 500px;
        border-radius: var(--border-radius-md);
        margin-top: 15px;
        margin-bottom: 15px;
    }
    
    .chat-header {
        padding: 15px;
    }
    
    .title {
        font-size: 2.5rem;
    }
    
    .bubble {
        max-width: 80%;
    }
}

@media (max-width: 480px) {
    .container-fluid {
        padding: 0;
    }
    
    .chat-container {
        height: 100vh;
        max-height: 100vh;
        min-height: 100vh;
        border-radius: 0;
        margin: 0;
    }
    
    .chat-header {
        border-radius: 0;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .chat-messages {
        padding: 15px 10px;
    }
    
    .bubble {
        max-width: 85%;
        padding: 10px 14px;
    }
}