/* Modern Clean UI - ChatGPT/Claude Style */

/* Reset and Base - Clean slate */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Kleuren worden nu beheerd in colors.css */

    /* Spacing System */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* Fonts */
    --font-primary: var(--font-sans);
    --font-serif: 'Merriweather', 'Georgia', serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
    --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Shadows */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;

    /* Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 0.2s ease;
    --transition-slow: 300ms ease;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-main);
    /* #292926 */
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 15px;
    overflow: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Removed animated background for cleaner look */
body::before {
    display: none;
}

@keyframes backgroundShift {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.95;
        transform: scale(1.02);
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Main Content - Adjust margin when sidebar is present */
.dashboard {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: transparent;
    padding-left: 280px;
    /* Space for fixed sidebar */
    transition: padding-left var(--transition-base);
}

.dashboard:has(.sidebar.collapsed) {
    padding-left: 0;
}

/* Sidebar - Clean Flat Panel */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    /* Opaque background */
    border-right: 1px solid var(--border-subtle);
    border: none;
    border-right: 1px solid var(--border-subtle);
    /* Remove rounding for cleaner "docked" look */
    border-radius: 0;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform var(--transition-base);
    position: fixed;
    /* Fixed to viewport */
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    margin: 0;
    height: 100vh;
    box-shadow: none;
    /* Clean flat look */
}

/* When sidebar is collapsed, make it absolute to not affect layout */
/* When sidebar is collapsed, slide fully off screen */
.sidebar.collapsed {
    transform: translateX(-100%);
    /* Moves 100% of its own width to the left */
}

.sidebar-header {
    padding: var(--space-6);
    padding-left: calc(44px + var(--space-4) + var(--space-4));
    /* approx 76px to clear toggle button */
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.sidebar-logo {
    width: 36px;
    height: 36px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 2px 8px rgba(204, 194, 159, 0.3));
}

.sidebar-logo:hover {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 4px 12px rgba(204, 194, 159, 0.5));
}

.sidebar-header h1 i {
    color: var(--primary);
}

.subtitle {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: var(--space-1);
    font-weight: 400;
}

/* Navigation - Claude Style */
.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-2);
    background: transparent;
    border: none;
    border-radius: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    position: relative;
}

.nav-item .icon {
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.7;
    font-size: 0.9375rem;
}

.nav-item:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item:hover .icon {
    color: var(--primary);
    transform: scale(1.15) translateX(2px);
    opacity: 1;
    filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.35));
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.2);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 28px;
    background: var(--primary);
    border-radius: 0 2px 2px 0;
    box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.4);
}

.nav-item.active .icon {
    color: var(--primary);
    transform: scale(1.15);
    opacity: 1;
    filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.4));
}

/* Sidebar Footer - Clean */
.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-main);
}

/* Token Usage - Claude Style */
.token-usage-container {
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    border: 1px solid var(--border-subtle);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.token-usage-container label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
    font-weight: 500;
}

.btn-icon {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: 0.5rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.btn-icon:hover {
    color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.2);
}

.token-bar {
    height: 6px;
    background: var(--bg-main);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.token-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--primary));
    transition: width var(--transition-slow);
    border-radius: 3px;
}

.token-progress.warning {
    background: linear-gradient(90deg, var(--warning), var(--primary));
}

.token-progress.danger {
    background: var(--error);
}

.token-stats,
.token-percentage {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-align: center;
}

.token-stats span {
    color: var(--text-primary);
    font-weight: 600;
}

/* Provider Select - Clean */
.provider-status {
    margin-bottom: var(--space-3);
}

.provider-status label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-2);
    display: block;
    font-weight: 500;
}

.provider-select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.provider-select:hover,
.provider-select:focus {
    border-color: var(--primary);
    outline: none;
}

/* Buttons - Modern Style */
.btn {
    padding: var(--space-3) var(--space-5);
    border: none;
    border-radius: 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.35);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--primary);
    box-shadow: 0px 4px 16px rgba(0, 0, 0, 0.25);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.15);
}

/* Main Content - Spacious */
.main-content {
    flex: 1;
    overflow-y: auto;
    background: transparent;
}

.tab-content {
    display: none;
    padding: var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content.active {
    display: block;
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

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

/* Section Headers - Clean */
.section-header {
    margin-bottom: var(--space-8);
}

.section-header h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

/* Input Fields - Claude Style */
.input-field,
.code-input,
textarea {
    width: 100%;
    padding: var(--space-4);
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    line-height: 1.5;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.input-field:focus,
.code-input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-tertiary);
    box-shadow: 0 2px 10px rgba(79, 174, 42, 0.25);
}

.code-input,
pre,
code {
    font-family: var(--font-mono);
}

/* Loading Spinner - Smooth */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(var(--primary), 0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Clean utility classes */
.text-muted {
    color: var(--text-tertiary);
}

.text-secondary {
    color: var(--text-secondary);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mt-4 {
    margin-top: var(--space-4);
}

/* Chat-specific styles */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--space-8));
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    background: transparent;
}

.chat-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
}

.chat-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.agents-info {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.agent-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.agent-badge i {
    font-size: 0.75rem;
    opacity: 0.8;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.agent-badge:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.agent-badge:hover i {
    opacity: 1;
    transform: scale(1.1);
    color: var(--primary);
    filter: drop-shadow(0 0 4px rgba(0, 0, 0, 0.35));
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-6);
    background: transparent;
}

/* Chat Message Bubbles - Claude Style */
.message {
    margin-bottom: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-width: 800px;
}

.message.user {
    margin-left: auto;
}

.message.assistant {
    margin-right: auto;
}

.message-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.message-header i {
    font-size: 0.9375rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.8;
}

.message-header:hover i {
    opacity: 1;
    transform: scale(1.1);
}

/* Thinking Process Display */
.thinking-process {
    margin: var(--space-4) 0;
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 0.75rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: slideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.thinking-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-weight: 600;
    color: var(--primary);
    font-size: 0.875rem;
}

.thinking-header i {
    font-size: 1rem;
    animation: pulse 2s ease-in-out infinite;
}

.thinking-analysis {
    margin-bottom: var(--space-3);
}

.thinking-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    font-weight: 500;
}

.thinking-agents {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.thinking-agent-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.3);
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-primary);
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.thinking-agent-item .agent-icon {
    color: var(--primary);
    font-size: 0.875rem;
}

.thinking-agent-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.thinking-explanation {
    padding: var(--space-3);
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid var(--primary);
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: var(--space-2);
}

.thinking-explanation i {
    color: var(--primary);
    margin-right: var(--space-2);
}

.thinking-steps {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(0, 0, 0, 0.2);
}

.thinking-step {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: stepFadeIn 0.3s ease-out;
}

@keyframes stepFadeIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

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

.thinking-step-starting {
    border-left: 3px solid var(--primary);
    background: var(--bg-tertiary);
}

.thinking-step-starting .step-icon {
    color: var(--primary);
}

.thinking-step-working {
    border-left: 3px solid var(--primary);
    background: var(--bg-elevated);
    animation: pulseGlow 2s ease-in-out infinite;
}

.thinking-step-working .step-icon {
    color: var(--primary);
}

@keyframes pulseGlow {

    0%,
    100% {
        box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    }

    50% {
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
    }
}

.thinking-step-completed {
    border-left: 3px solid var(--success);
    background: rgba(16, 185, 129, 0.05);
}

.thinking-step-completed .step-icon {
    color: var(--success);
}

.step-icon {
    font-size: 0.875rem;
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-agent-icon {
    font-size: 1rem;
    color: var(--primary);
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-message {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
}

.status-badge {
    padding: var(--space-1) var(--space-2);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    transition: all 0.2s ease;
}

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

.message.assistant .message-header {
    color: var(--primary);
}

.message-content {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-xl);
    font-size: 0.9375rem;
    line-height: 1.6;
    word-wrap: break-word;
}

.message.user .message-content {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
}

.message.assistant .message-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

.message-agents {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-2);
}

.message-agent-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 0.375rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.message-agent-badge i {
    font-size: 0.6875rem;
    opacity: 0.7;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.message-agent-badge:hover {
    background: var(--bg-elevated);
    border-color: var(--primary);
    color: var(--text-secondary);
}

.message-agent-badge:hover i {
    opacity: 1;
    transform: scale(1.1);
    color: var(--primary);
}

/* Message Content Formatting - Claude Style */
.message-content h1.msg-heading-1,
.message-content h2.msg-heading-2,
.message-content h3.msg-heading-3 {
    margin: var(--space-4) 0 var(--space-3) 0;
    font-weight: 600;
    line-height: 1.3;
}

.message-content h1.msg-heading-1 {
    font-size: 1.5rem;
    color: var(--primary);
}

.message-content h2.msg-heading-2 {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.message-content h3.msg-heading-3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: var(--space-2);
}

.message-content code.inline-code {
    padding: var(--space-1) var(--space-2);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--primary);
}

.message-content pre {
    position: relative;
    background: var(--bg-main);
    border: 1px solid var(--border-medium);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin: var(--space-4) 0;
    overflow-x: auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.message-content pre code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: transparent;
    border: none;
    padding: 0;
}

.message-content ul.msg-list,
.message-content ol.msg-list-numbered {
    margin: var(--space-3) 0;
    padding-left: var(--space-6);
}

.message-content li.msg-list-item,
.message-content li.msg-list-item-numbered {
    margin: var(--space-2) 0;
    color: var(--text-primary);
    line-height: 1.6;
}

.message-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.message-content em {
    font-style: italic;
    color: var(--text-secondary);
}

/* Image and Plot Support in Messages */
.message-content .msg-image {
    margin: var(--space-4) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-main);
    border: 1px solid var(--border-medium);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.message-content .msg-image img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
}

.message-content .plot-placeholder {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 500;
    margin: var(--space-2) 0;
}

/* Better paragraph spacing in messages */
.message-content p {
    margin: var(--space-3) 0;
    line-height: 1.7;
}

.message-content p:first-child {
    margin-top: 0;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.welcome-message {
    text-align: center;
    padding: var(--space-12);
}

.welcome-message h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.welcome-message p {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.example-prompts {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 500px;
    margin: 0 auto;
}

.example-prompt {
    padding: var(--space-4) var(--space-5);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-medium);
    border-radius: 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    font-size: 0.9375rem;
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.example-prompt:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.25);
}

.chat-input-container {
    padding: var(--space-6);
    border-top: none;
    background: var(--bg-main);
    display: flex;
    align-items: flex-end;
    gap: var(--space-2);
    position: sticky;
    bottom: 0;
    z-index: 10;
}

.chat-input-container textarea {
    flex: 1;
    min-height: 52px;
    max-height: 200px;
    padding: var(--space-4);
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.5;
    resize: none;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.chat-input-container textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.chat-input-container textarea::placeholder {
    color: var(--text-tertiary);
}

.chat-input-container .btn-primary {
    min-width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.chat-input-container .btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.chat-input-container .btn-primary:hover {
    transform: scale(1.08) translateY(-1px);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.35);
}

.chat-input-container .btn-primary:hover i {
    opacity: 1;
    transform: translateY(-1px);
    filter: drop-shadow(0 2px 4px rgba(255, 255, 255, 0.3));
}

.chat-input-container .btn-primary:hover::before {
    width: 100%;
    height: 100%;
}

.chat-input-container .btn-primary:active {
    transform: scale(0.95);
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.3);
}

/* Provider Selector in Chat */
.provider-selector-container {
    display: flex;
    align-items: center;
    margin: 0 var(--space-2);
}

.provider-select-chat {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    padding: 0 12px;
    height: 48px;
    /* Slightly smaller than input button */
    font-size: 0.9rem;
    font-family: var(--font-sans);
    cursor: pointer;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='gray' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
    padding-right: 30px;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.provider-select-chat:hover,
.provider-select-chat:focus {
    border-color: var(--primary);
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
    outline: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Make it look nicer when active/open */
.provider-select-chat option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 10px;
}

/* File management styles */
.header-actions {
    display: flex;
    gap: var(--space-3);
}

.upload-zone {
    border: 2px dashed var(--border-medium);
    border-radius: 1.25rem;
    padding: var(--space-12);
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    margin-bottom: var(--space-6);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.upload-zone:hover {
    border-color: var(--primary);
    background: var(--bg-elevated);
    transform: translateY(-2px);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.25);
}

.upload-zone.drag-over {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0px 8px 24px rgba(0, 0, 0, 0.35);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: var(--space-4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.9;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.upload-zone:hover .upload-icon {
    transform: scale(1.1) translateY(-4px);
    opacity: 1;
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.4));
}

.upload-zone h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.upload-zone p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.files-list {
    display: grid;
    gap: var(--space-3);
}

/* Notebook styles */
.notebook-actions {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.notebook-creator {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.notebook-creator h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.notebook-runner {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.notebook-runner h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.notebook-output {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-main);
    border-radius: var(--radius-md);
    min-height: 200px;
}

.button-group {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

/* Data analysis styles */
.data-analysis {
    display: grid;
    gap: var(--space-6);
}

.analysis-input,
.analysis-query {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.analysis-input h3,
.analysis-query h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.data-preview {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-main);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

/* Settings styles */
.settings-section {
    margin-bottom: var(--space-8);
}

.settings-section h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.provider-status-list {
    display: grid;
    gap: var(--space-3);
}

.agents-list {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.agent-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.agent-card:hover {
    border-color: var(--primary);
    background: var(--bg-tertiary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.agent-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
    color: var(--primary);
    font-size: 1.375rem;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.agent-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.agent-card:hover .agent-icon {
    background: var(--primary);
    color: white;
    transform: scale(1.1) rotate(5deg);
    border-color: var(--primary);
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.35);
}

.agent-card:hover .agent-icon::before {
    width: 100%;
    height: 100%;
}

.agent-card:hover .agent-icon i {
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.agent-info h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.agent-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.info-grid {
    display: grid;
    gap: var(--space-3);
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.info-item label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.info-item span {
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: 0.5rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--error);
    color: var(--error);
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0px 2px 8px rgba(239, 68, 68, 0.2);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    flex: 1;
}

.modal-body label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-2);
    margin-top: var(--space-4);
}

.modal-body label:first-child {
    margin-top: 0;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-6);
    border-top: 1px solid var(--border-subtle);
}

/* Responsive design */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-width: 280px;
        position: fixed;
        left: -280px;
        top: 0;
        height: 100vh;
        z-index: 100;
        transition: left var(--transition-base);
    }

    .sidebar.mobile-open {
        left: 0;
    }

    .agents-list {
        grid-template-columns: 1fr;
    }

    .chat-input-container {
        flex-direction: column;
    }
}

/* Plot Rendering Styles */
.plot-card {
    background: var(--bg-secondary);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    margin-bottom: var(--space-4);
    transition: all var(--transition-base);
}

.plot-card:hover {
    border-color: var(--border-medium);
}

.embedded-plot {
    margin: var(--space-6) 0;
}

.plot-card img {
    width: 100%;
    border-radius: var(--radius-sm);
    display: block;
    background: var(--bg-main);
    /* Placeholder bg */
}

.plot-actions {
    margin-top: var(--space-3);
    display: flex;
    justify-content: flex-end;
}

.additional-plots-container {
    margin-top: var(--space-8);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-subtle);
}

.additional-plots-header {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}

.plots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-4);
}

/* 3D Viewer Loading State */
.viewer-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-align: center;
    font-family: 'Inter', sans-serif;
    font-size: 1.2rem;
    pointer-events: none;
    z-index: 10;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.viewer-loading i {
    margin-bottom: 15px;
    font-size: 2.5rem;
    color: var(--accent-color);
}