:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --grey-light: #f5f5f5;
    --grey-medium: #888888;
    --grey-dark: #333333;
    --border-color: #000000;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-weight: 600;
    margin-top: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

a {
    color: var(--text-color);
    text-decoration: underline;
}

a:hover {
    text-decoration: none;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 14px;
    box-sizing: border-box;
    border-radius: 0;
}

button, .button {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--text-color);
    color: var(--bg-color);
    border: 1px solid var(--text-color);
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.2s ease;
    text-decoration: none;
    border-radius: 0;
}

button:hover, .button:hover {
    background-color: var(--bg-color);
    color: var(--text-color);
}

button.secondary, .button.secondary {
    background-color: var(--bg-color);
    color: var(--text-color);
}

button.secondary:hover, .button.secondary:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

button.danger {
    background-color: #000;
    border-color: #000;
}

/* Chat Layout */
#chat-container {
    max-width: 800px;
    margin: 0 auto;
}

#chat-box {
    height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    padding: 20px;
    margin-bottom: 20px;
    background-color: var(--bg-color);
}

.msg {
    margin-bottom: 15px;
    padding: 10px;
}

.user {
    border-left: 4px solid var(--text-color);
    background-color: var(--grey-light);
}

.bot {
    border-left: 4px solid var(--grey-medium);
}

/* Panels */
.panel {
    border: 1px solid var(--border-color);
    padding: 20px;
    margin-bottom: 25px;
}

pre {
    background-color: var(--grey-light);
    padding: 15px;
    border: 1px solid var(--border-color);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 13px;
}

/* Grid/Flex Helpers */
.flex {
    display: flex;
    gap: 20px;
}

.justify-center {
    justify-content: center;
}

.mt-20 {
    margin-top: 20px;
}

/* Developer Panel */
#dev-panel {
    background-color: var(--grey-light);
    padding: 20px;
    margin-top: 40px;
    border: 1px solid var(--border-color);
}

/* Login/Register Page Specific */
.auth-container {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-top: 50px;
}

.dev-indicator {
    position: fixed;
    top: 20px;
    left: 20px;
    color: var(--grey-medium);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    pointer-events: none;
}

/* How the fuck did this get here. */
.dev-indicator.dual-mode {

}

.lang-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    color: var(--grey-dark);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 1000;
}

.auth-form {
    width: 350px;
}

.dev-mode {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.dev-mode input {
    width: auto;
    margin: 0;
}

/* Toast Notification */
#toast-notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 15px 30px;
    border: 1px solid var(--border-color);
    z-index: 1000;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Thinking Animation */
.thinking-dots-blink span {
    animation: thinking-dots-blink-anim 1.4s infinite both;
}

.thinking-dots-blink span:nth-child(2) {
    animation-delay: 0.2s;
}

.thinking-dots-blink span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes thinking-dots-blink-anim {
    0% { opacity: 0.2; }
    20% { opacity: 1; }
    100% { opacity: 0.2; }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--text-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Chat Footer Layout */
.chat-footer-input {
    margin-bottom: 10px;
}

.chat-footer-input textarea {
    margin-bottom: 0;
    resize: vertical;
}

.chat-footer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.left-actions {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 0;
    flex-grow: 1;
}

.left-actions .send-btn {
    white-space: nowrap;
}

.file-upload-group {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    flex-grow: 1;
}

.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.icon-button:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

#file-name-display {
    font-size: 12px;
    color: var(--grey-medium);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.session-btn-group {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.session-btn-group button {
    white-space: nowrap;
}

/* Responsive styles for mobile */
@media (max-width: 600px) {
    .chat-footer-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .left-actions {
        width: 100%;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .left-actions .send-btn {
        flex-grow: 1;
    }

    .file-upload-group {
        flex-grow: unset;
        min-width: unset;
    }

    #file-name-display {
        max-width: 120px;
    }

    .session-btn-group {
        width: 100%;
        display: flex;
    }

    .session-btn-group button {
        flex: 1;
        text-align: center;
        padding: 12px 10px;
        font-size: 13px;
    }
}