/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-color: #764ba2;
    --success-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --border-color: #e2e8f0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-primary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 16px;
}

.happi-logo {
    animation: bounce 2s infinite;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    object-fit: contain;
    display: block;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* Ícone do assistente em mensagens */
.assistant-icon {
    width: 32px;
    height: 32px;
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
}

.message.assistant .assistant-icon {
    margin-right: 8px;
}

.header h1 {
    font-size: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--error-color);
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background: var(--success-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Layout */
.main-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 24px;
}

/* Sidebar */
.sidebar {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-btn {
    padding: 12px 16px;
    border: none;
    background: transparent;
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.3s;
}

.nav-btn:hover {
    background: var(--bg-color);
}

.nav-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

/* Content Area */
.content {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-lg);
    min-height: 600px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Chat */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 600px;
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: var(--bg-color);
    border-radius: 12px;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    padding: 12px 16px;
    border-radius: 12px;
    max-width: 80%;
    animation: slideIn 0.3s;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.user {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    align-self: flex-end;
    margin-left: auto;
}

.message.assistant {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    align-self: flex-start;
}

.message .tools-used {
    font-size: 11px;
    opacity: 0.7;
    margin-top: 8px;
    font-style: italic;
}

.chat-input-container {
    display: flex;
    gap: 12px;
}

#chatInput {
    flex: 1;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

#chatInput:focus {
    border-color: var(--primary-color);
}

#chatInput:disabled {
    background: var(--bg-color);
    cursor: not-allowed;
}

#sendBtn {
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

#sendBtn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

#sendBtn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-icon {
    font-size: 16px;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.tool-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.tool-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.tool-card h3 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 16px;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

/* Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.resource-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.resource-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.resource-card h3 {
    color: var(--secondary-color);
    margin-bottom: 8px;
    font-size: 16px;
}

.resource-card p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

/* Status Cards */
.status-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.status-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.status-card-icon {
    font-size: 32px;
}

.status-card-content h3 {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.status-card-content p {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.refresh-btn {
    margin-top: 24px;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.refresh-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s;
}

.modal-large {
    max-width: 800px;
}

@keyframes modalSlideIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

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

.modal-header h3 {
    font-size: 20px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.btn-primary {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    padding: 10px 20px;
    background: var(--bg-color);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: var(--border-color);
}

/* Form */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary-color);
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Pre (JSON) */
pre {
    background: var(--bg-color);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .nav {
        flex-direction: row;
        overflow-x: auto;
    }

    .nav-btn {
        white-space: nowrap;
    }

    .status-cards {
        grid-template-columns: 1fr;
    }

    .tools-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }
}