@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600&family=Outfit:wght@400;600;700&display=swap');

:root {
    /* DataWolves Monochrome Branding */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --sidebar-bg: #050505;
    --accent: #FFFFFF;
    --accent-glow: rgba(255, 255, 255, 0.1);

    /* Text - Enhanced Contrast */
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --text-muted: #707070;

    /* UI Elements */
    --border-color: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(15, 15, 15, 0.9);
    --glass-bg: rgba(0, 0, 0, 0.92);
    --glass-blur: blur(24px);

    --transition-smooth: all 0.25s cubic-bezier(0.19, 1, 0.22, 1);
}

[data-theme="light"] {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --sidebar-bg: #F0F2F4;
    --accent: #000000;
    --accent-glow: rgba(0, 0, 0, 0.05);
    --text-primary: #000000;
    --text-secondary: #505050;
    --text-muted: #808080;
    --border-color: rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    overflow: hidden;
    background-image: radial-gradient(circle at 50% -10%, var(--accent-glow), transparent 60%);
}

/* Sidebar Styling */
#sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 2.5rem 1.25rem;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
    min-height: 40px;
}

.logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    white-space: nowrap;
}

.new-chat-btn {
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 0.8rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    transition: var(--transition-smooth);
}

.new-chat-btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

#chat-list {
    flex: 1;
    overflow-y: auto;
}

.chat-item {
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.chat-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.chat-item.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-weight: 600;
}

.sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-top: 0.5rem;
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--text-primary);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

/* Main Content Area */
#main-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

header {
    height: 64px;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 50;
}

#menu-toggle,
#theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

#menu-toggle:hover,
#theme-toggle:hover {
    transform: scale(1.1);
}

#chat-container {
    flex: 1;
    padding: 3rem 1.5rem 10rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.message {
    max-width: 85%;
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    line-height: 1.6;
    font-size: 0.95rem;
}

.user-message {
    align-self: flex-end;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.ai-message {
    align-self: flex-start;
    color: var(--text-primary);
    border-left: 2px solid var(--accent);
    padding-left: 1.5rem;
    border-radius: 0;
}

.ai-message pre {
    background: rgba(255, 255, 255, 0.08);
    padding: 1.25rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.88rem;
    color: #f0f0f0;
    overflow-x: auto;
}

textarea#user-input::placeholder {
    color: var(--text-muted);
    opacity: 1;
}

/* Floating Input (Clean monochrome) */
#input-area {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 700px;
    letter-spacing: -0.01em;
}

.input-wrapper {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0.5rem;
    display: flex;
    align-items: flex-end;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.input-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0.5rem 1rem;
}

#model-selector {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    outline: none;
    margin-bottom: 0.4rem;
    cursor: pointer;
    width: fit-content;
}

#model-selector:hover {
    color: var(--text-primary);
}

textarea#user-input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    outline: none;
    resize: none;
    font-size: 1rem;
    max-height: 200px;
    font-family: inherit;
    width: 100%;
}

.input-btns {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding-bottom: 0.4rem;
    padding-right: 0.4rem;
}

.tool-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

#send-btn {
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

#send-btn:hover {
    transform: scale(1.05);
}

#stop-btn {
    background: #FF4B2B;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    display: none;
    align-items: center;
    justify-content: center;
}

/* Dots Animation */
.dots {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.dot {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.dot:nth-child(1) {
    animation-delay: -0.32s;
}

.dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

[data-lucide] {
    width: 1.1rem;
    height: 1.1rem;
}

/* Mobile */
@media (max-width: 768px) {
    #sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        bottom: 0;
        transition: transform 0.3s;
    }

    #sidebar.open {
        transform: translateX(280px);
    }
}