/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html, body {
    height: 100vh;
    width: 100%;
    background: linear-gradient(135deg, #0a0a0a, #1c2526); /* Dark gradient */
    color: #e0e0e0;
    overflow: hidden;
}

/* Header */
.chat-header {
    text-align: center;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.text-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.chat-header h1 {
    font-size: 1.8rem;
    color: #00aaff;
    font-weight: 600;
}

.chat-header p {
    font-size: 0.9rem;
    color: #b0b0b0;
}

/* Chat Container */
.chat-container {
    width: 100%;
    height: calc(100vh - 180px); /* Adjust for header, prompt, and margin */
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    scrollbar-width: thin;
    scrollbar-color: #00aaff #1c2526;
    margin-bottom: 20px; /* Add margin to prevent overlap with prompt */
}

.chat-container::-webkit-scrollbar {
    width: 8px;
}

.chat-container::-webkit-scrollbar-track {
    background: #1c2526;
}

.chat-container::-webkit-scrollbar-thumb {
    background: #00aaff;
    border-radius: 4px;
}

/* Chat Boxes */
.userchatbox, .aichatbox {
    display: flex;
    align-items: flex-start;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto; /* Center chat boxes */
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.userchatbox {
    justify-content: flex-end;
}

.aichatbox {
    justify-content: flex-start;
}

.user-chat-area, .ai-chat-area {
    max-width: 100%;
    padding: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.user-chat-area {
    background: linear-gradient(45deg, #2a2a2a, #3a3a3a);
    border-radius: 0; /* Square shape */
    color: #e0e0e0;
}

.ai-chat-area {
    background: linear-gradient(45deg, #333333, #4a4a4a); /* Gray gradient */
    border-radius: 0; /* Square shape */
    color: #ffffff;
}

/* Code and Math Styling */
.ai-chat-area pre, .user-chat-area pre {
    background: #1a1a1a;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    margin: 0.5rem 0;
    white-space: pre-wrap; /* Allow text to wrap vertically */
    overflow-x: hidden; /* No horizontal scroll */
    max-width: 100%;
}

.ai-chat-area code, .user-chat-area code {
    font-family: 'Fira Code', monospace;
    color: #f0f0f0;
    display: block; /* Ensure code is vertically stacked */
}

/* Math terms (e.g., inline math) */
.ai-chat-area code.language-text, .user-chat-area code.language-text {
    background: #222222;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    display: inline; /* Inline for short math terms */
}

/* Uploaded Images */
.chooseimg {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-top: 0.5rem;
}

/* Prompt Area */
.prompt {
    width: 100%;
    height: 80px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1rem;
    box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.4);
    position: sticky;
    bottom: 0;
}

/* Input Styling */
.prompt input {
    flex: 1;
    max-width: 600px;
    padding: 0.8rem 1.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 1.1rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.prompt input:focus {
    border-color: #00aaff;
    box-shadow: 0 0 8px rgba(0, 170, 255, 0.5);
}

.prompt input::placeholder {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

/* Buttons */
.prompt button {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: linear-gradient(45deg, #00aaff, #0077cc);
    border: none;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.prompt button:hover {
    transform: scale(1.1);
    box-shadow: 0 0 12px rgba(0, 170, 255, 0.6);
}

.prompt button i {
    font-size: 1.2rem;
}

/* Media Queries */

/* Tablets and Small Laptops (max-width: 768px) */
@media (max-width: 768px) {
    .chat-container {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .userchatbox, .aichatbox {
        max-width: 90%;
    }

    .user-chat-area, .ai-chat-area {
        font-size: 1.05rem;
        padding: 1.2rem;
    }

    .prompt {
        gap: 0.6rem;
        padding: 0.8rem;
    }

    .prompt input {
        font-size: 1rem;
    }

    .prompt button {
        width: 2.8rem;
        height: 2.8rem;
    }
}

/* Small Tablets and Large Phones (max-width: 600px) */
@media (max-width: 600px) {
    .chat-header h1 {
        font-size: 1.5rem;
    }

    .chat-header p {
        font-size: 0.8rem;
    }

    .chat-container {
        padding: 1rem;
        height: calc(100vh - 160px);
        margin-bottom: 15px;
    }

    .user-chat-area, .ai-chat-area {
        max-width: 85%;
        font-size: 1rem;
        padding: 1rem;
    }

    .prompt {
        flex-direction: row;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        padding: 0.8rem;
    }

    .prompt input {
        flex: 1;
        font-size: 0.95rem;
    }

   .prompt button {
        width: 2.5rem;
        height: 2.5rem;
    }
}

/* Very Small Screens (max-width: 360px) */
@media (max-width: 360px) {
    .chat-container {
        padding: 0.8rem;
        gap: 1rem;
    }

    .user-chat-area, .ai-chat-area {
        max-width: 90%;
        font-size: 0.95rem;
        padding: 0.8rem;
    }

    .prompt {
        gap: 0.4rem;
        padding: 0.6rem;
    }

    .prompt input {
        font-size: 0.9rem;
        padding: 0.7rem;
    }

    .prompt button {
        width: 2.3rem;
        height: 2.3rem;
    }

    .prompt input::placeholder {
        font-size:  0.85rem;
    }
}