/* Enterprise Dark Mode - FilesGPT */

:root {
    --bg-primary: #0a0b0e;
    --bg-secondary: #14161b;
    --bg-tertiary: #1e2128;
    --accent-color: #3b82f6;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --redacted-color: #000000;
    --border-color: #2d3748;
    --message-user-bg: #2563eb;
    --message-bot-bg: #1e2128;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    /* Ensure sidebar doesn't shrink in flex */
}

.brand {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.5px;
}

.brand::before {
    content: '';
    display: block;
    width: 12px;
    height: 12px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.new-chat-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.new-chat-btn:hover {
    background-color: var(--bg-primary);
    border-color: var(--accent-color);
}

.history-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.history-item {
    padding: 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.history-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.delete-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s;
    padding: 4px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.history-item:hover .delete-btn {
    opacity: 1;
}

.delete-btn:hover {
    color: #ef4444;
    background-color: rgba(239, 68, 68, 0.1);
}

.history-item:hover,
.history-item.active {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Main Chat Area */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: radial-gradient(circle at top right, #1a1d26 0%, transparent 40%);
    min-width: 0;
    /* Important for flex child truncation */
}

.chat-header {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(10, 11, 14, 0.8);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.model-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    scroll-behavior: smooth;
}

.message {
    display: flex;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.user-avatar {
    background-color: var(--message-user-bg);
    color: white;
}

.bot-avatar {
    background-color: var(--accent-color);
    color: white;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.message-content {
    flex: 1;
    line-height: 1.6;
    font-size: 0.95rem;
    color: var(--text-primary);
    overflow-wrap: break-word;
    word-break: break-word;
    min-width: 0;
}

.user-message .message-content {
    color: var(--text-primary);
}

.bot-message .message-content {
    background-color: var(--message-bot-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Redaction Effects */
.redacted-block {
    background-color: var(--redacted-color);
    color: transparent;
    border-radius: 4px;
    display: inline;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
    padding: 0 0.2em;
    margin: 0 0.1em;
    cursor: not-allowed;
    user-select: none;
    transition: background-color 0.2s ease;
}

.redacted-block:hover {
    background-color: #1a1a1a;
}

.unredacted-word {
    color: var(--text-primary);
    font-weight: 500;
    padding: 0 0.1em;
}

/* Typing/Stream simulation */
.blinking-cursor::after {
    content: '▋';
    color: var(--accent-color);
    animation: blink 1s step-start infinite;
    margin-left: 2px;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* Input Area */
.input-area {
    padding: 2rem;
    background: linear-gradient(to top, var(--bg-primary) 80%, transparent);
    z-index: 20;
}

.input-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

textarea {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 3rem 1rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    resize: none;
    min-height: 60px;
    max-height: 200px;
    outline: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
}

.send-btn {
    position: absolute;
    bottom: 14px;
    right: 14px;
    background-color: var(--accent-color);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.1s ease, filter 0.2s ease;
}

.send-btn:hover {
    filter: brightness(1.1);
}

.send-btn:active {
    transform: scale(0.95);
}

.send-btn:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    filter: none;
}

/* Thinking Indicator */
.thinking {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.thinking i {
    font-size: 0.8rem;
    animation: spin 2s linear infinite;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

/* Disclaimer Footer */
.disclaimer-footer {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
    opacity: 0.5;
    margin-top: 1rem;
    font-weight: 300;
}

/* Mobile Responsiveness */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    margin-right: 1rem;
}

/* Increased breakpoint to 1024px to cover tablets and small laptops */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed !important;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 1000;
        transform: translateX(-100%);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-menu-btn {
        display: block !important;
    }

    .chat-header {
        padding: 1rem;
    }

    .messages-area {
        padding: 1rem;
    }

    .input-area {
        padding: 1rem;
    }

    /* Overlay for sidebar */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 990;
        backdrop-filter: blur(2px);
    }

    .sidebar-overlay.active {
        display: block !important;
    }
}