/* Core Design System & Tokens */
:root {
    --bg-base: #0b0f19;
    --bg-surface: rgba(17, 24, 39, 0.7);
    --bg-surface-opaque: #111827;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --color-accent: #6366f1; /* Indigo */
    --color-accent-hover: #4f46e5;
    --color-accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    
    --color-success: #10b981; /* Emerald */
    --color-warning: #f59e0b; /* Amber */
    --color-error: #ef4444; /* Rose */
    
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

body {
    background-color: var(--bg-base);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.1) 0px, transparent 50%);
    color: var(--text-primary);
    font-family: var(--font-sans);
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* App Container Layout */
.app-container {
    width: 95vw;
    height: 92vh;
    max-width: 1400px;
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Select Inputs */
.select-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.select-group label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.select-group select {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.select-group select:hover {
    border-color: var(--border-hover);
}

.select-group select:focus {
    border-color: var(--color-accent);
}

/* Badge Status */
.badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.badge.connected {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border-color: rgba(16, 185, 129, 0.2);
}

.badge.disconnected {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border-color: rgba(239, 68, 68, 0.2);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    display: inline-block;
}

.badge.connected .status-dot {
    box-shadow: 0 0 8px var(--color-success);
    animation: pulse 2s infinite;
}

/* Main Workspace */
.workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.chat-section {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    overflow: hidden;
}

.form-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.01);
    overflow-y: auto;
    padding: 24px;
}

/* Chat Styles */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.chat-status-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-messages {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    display: flex;
    max-width: 80%;
}

.message.assistant {
    align-self: flex-start;
}

.message.user {
    align-self: flex-end;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    line-height: 1.5;
}

.message.assistant .message-bubble {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
}

.message.user .message-bubble {
    background: var(--color-accent-gradient);
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.25);
}

.chat-input-area {
    padding: 16px 24px;
    display: flex;
    gap: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--border-color);
    align-items: flex-end;
}

.chat-input-area textarea {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.92rem;
    resize: none;
    outline: none;
    max-height: 120px;
    transition: var(--transition-fast);
}

.chat-input-area textarea:focus {
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.07);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    outline: none;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-primary {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    padding: 0;
    flex-shrink: 0;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.btn-accent {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.btn-large {
    padding: 16px 24px;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    width: 100%;
}

.btn:active {
    transform: translateY(0);
}

/* Fields Form Section */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.section-title h2 {
    font-size: 1.15rem;
    font-weight: 600;
}

.section-title i {
    color: var(--color-accent);
}

.fields-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 16px;
    flex: 1;
}

.col-6 {
    grid-column: span 6;
}

.col-12 {
    grid-column: span 12;
}

.field-group-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.input-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-field label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Fix vertical offset of car window icon */
.plate-icon-fix {
    top: 50%;
    transform: translateY(-50%);
}

.input-wrapper input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 10px 12px 10px 36px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-fast);
}

.input-wrapper input:focus {
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.07);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}

/* Concepts Container */
.concepts-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#concepts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 40px;
}

.no-concepts-placeholder {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    padding: 16px;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
}

.concept-item-row {
    display: flex;
    gap: 8px;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.concept-item-row input[type="text"] {
    flex: 1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
}

.concept-item-row input[type="number"] {
    width: 80px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 8px 8px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    text-align: right;
}

.concept-item-row input:focus {
    border-color: var(--color-accent);
}

.btn-remove-concept {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.95rem;
    padding: 4px;
    transition: var(--transition-fast);
}

.btn-remove-concept:hover {
    color: var(--color-error);
}

.action-area {
    margin-top: 30px;
}

/* Toast Notification */
.toast {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: rgba(17, 24, 39, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-md);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform: translateY(0);
    opacity: 1;
}

.toast.hidden {
    transform: translateY(100px);
    opacity: 0;
    pointer-events: none;
}

.toast-icon {
    font-size: 1.1rem;
}

.toast.success .toast-icon { color: var(--color-success); }
.toast.info .toast-icon { color: var(--color-accent); }
.toast.warning .toast-icon { color: var(--color-warning); }
.toast.error .toast-icon { color: var(--color-error); }

/* Chat Loading Animation */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 6px 12px;
    align-items: center;
}

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

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .5; transform: scale(0.95); }
}

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mic Button styles */
.mic-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    width: 46px;
    height: 46px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.mic-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.mic-btn.recording {
    background: #ef4444 !important;
    border-color: #ef4444 !important;
    color: #ffffff !important;
    animation: mic-pulse 1.5s infinite;
}

@keyframes mic-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}