/* Theme Variables */
:root {
    /* Light Theme (default) */
    --bg-body: #f9fafb;
    --bg-chat: rgba(255, 255, 255, 0.95);
    --text-color: #111827;
    --header-bg: #4f46e5;
    --bubble-bot: #e5e7eb;
    --bubble-user: #667eea;
    --bubble-user-text: #ffffff;
    --footer-bg: #ffffff;
    --border-color: #e5e7eb;
    --input-border: #d1d5db;
    --btn-primary-bg: #667eea;
    --btn-primary-text: #ffffff;
    --mic-bg: #f1f1f1;
    --mic-hover-bg: #e2e8f0;
    --mic-active-bg: #cbd5e0;
    --file-text: #4b5563;
}

body[data-theme="dark"] {
    --bg-body: #121212;
    --bg-chat: #1e1e1e;
    --text-color: #f1f1f1;
    --header-bg: #4f46e5;
    --bubble-bot: #374151;
    --bubble-user: #4f46e5;
    --bubble-user-text: #ffffff;
    --footer-bg: #1f2937;
    --border-color: #374151;
    --input-border: #4b5563;
    --btn-primary-bg: #4f46e5;
    --btn-primary-text: #ffffff;
    --mic-bg: #2d3748;
    --mic-hover-bg: #4a5568;
    --mic-active-bg: #2c5282;
    --file-text: #9ca3af;
}

/* Body and General Layout */
body {
    background-color: var(--bg-body);
    color: var(--text-color);
    font-family: 'Segoe UI', sans-serif;
    padding: 20px;
}

/* Chat Container */
.chat-container {
    background: var(--bg-chat);
    border-radius: 16px;
    max-width: 800px;
    margin: auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 90vh;
}

/* Header */
.chat-header {
    background-color: var(--header-bg);
    color: var(--text-color);
    padding: 15px 20px;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Chat Area */
.chat-body {
    flex: 1;
    padding: 20px 60px;
    overflow-y: auto;
    background-color: var(--bg-body);
}

/* Footer Section */
.chat-footer {
    padding: 15px;
    background-color: var(--footer-bg);
    border-top: 1px solid var(--border-color);
}

/* Message Bubbles */
.chat-bubble {
    max-width: 100%;
    padding: 12px 18px;
    border-radius: 20px;
    margin-bottom: 10px;
    line-height: 1.5;
    display: inline-block;
    font-size: 15px;
}

.bot {
    background-color: var(--bubble-bot);
    color: var(--text-color);
    align-self: flex-start;
    border-top-left-radius: 0;
}

.user {
    background-color: var(--bubble-user);
    color: var(--bubble-user-text);
    align-self: flex-end;
    border-top-right-radius: 0;
}

/* Send Button */
#sendBtn {
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    width: 100%;
}

#sendBtn:disabled {
    background-color: #a0aec0;
}

/* Input Textarea */
#userInput {
    resize: none;
    border: 1px solid var(--input-border);
    border-radius: 10px;
    padding: 10px;
    width: 100%;
    height: 60px;
    margin-bottom: 10px;
    padding-right: 40px; /* space for mic icon */
}

/* Message Wrapper */
.message-wrapper {
    display: flex;
    flex-direction: column;
}

/* Portfolio Button */
.chat-footer a.btn-outline-primary {
    border-color: var(--btn-primary-bg);
    color: var(--btn-primary-bg);
    font-weight: 500;
    padding: 6px 16px;
    transition: 0.3s;
}

.chat-footer a.btn-outline-primary:hover {
    background-color: var(--btn-primary-bg);
    color: white;
}

/* Attachment Upload */
.attachment-wrapper {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    gap: 10px;
    flex-wrap: wrap;
}

.custom-file-upload {
    padding: 6px 14px;
    border: 2px solid var(--btn-primary-bg);
    border-radius: 6px;
    background-color: white;
    color: var(--btn-primary-bg);
    cursor: pointer;
    font-weight: 500;
    transition: 0.3s;
}

.custom-file-upload:hover {
    background-color: var(--btn-primary-bg);
    color: white;
}

#fileInput {
    display: none;
}

.file-names {
    font-size: 14px;
    color: var(--file-text);
    font-style: italic;
    max-width: 80%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Mic Icon */
.mic-inside {
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    padding: 6px 10px;
    font-size: 18px;
    border-radius: 50%;
    z-index: 10;
    border: none;
    background-color: var(--mic-bg);
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.1);
    position: absolute;
}

.mic-inside:hover {
    background-color: var(--mic-hover-bg);
}

.mic-inside:active {
    background-color: var(--mic-active-bg);
}
	
.chat-footer-bottom {
    padding: 0 15px;
}

theme-toggle-wrapper {
    display: flex;
    justify-content: flex-end;
    flex: 1;
}

#themeToggle {
    display: flex;
    align-items: center;
    padding: 6px 14px;
    font-weight: 500;
    white-space: nowrap;
}

body[data-theme="light"] #speechToggleBtn {
    background-color: #2d3748;
    color: #f9fafb;
    border-color: #4a5568;
}

/* Dark theme button style */
body[data-theme="dark"] #speechToggleBtn {
    background-color: #f3f4f6;
    color: #1f2937;
    border-color: #d1d5db;
}