:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1e1e1e;
    --bg-hover: #252525;
    
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #606060;
    
    --border-color: #2a2a2a;
    --border-hover: #3a3a3a;
    
    --accent-primary: #6366f1;
    --accent-hover: #4f46e5;
    --accent-success: #10b981;
    --accent-error: #ef4444;
    
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Layout */
.screen {
    min-height: 100vh;
}

.screen.hidden {
    display: none !important;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Login Screen */
#login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 2rem;
    color: var(--accent-primary);
}

.logo svg {
    margin-bottom: 0.5rem;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn svg {
    flex-shrink: 0;
}

.btn-primary {
    width: 100%;
    justify-content: center;
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: var(--accent-success);
    color: white;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* Error Message */
.error-message {
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 6px;
    color: var(--accent-error);
    font-size: 0.875rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* Navbar */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-primary);
}

/* Main Content */
.main-content {
    padding: 2rem 0;
}

.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-header h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

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

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.card.hidden {
    display: none;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.card-header svg {
    color: var(--accent-primary);
}

.card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.card form {
    padding: 1.5rem;
}

/* Result Content */
.result-content {
    padding: 1.5rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

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

.result-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.result-actions {
    display: flex;
    gap: 1rem;
}

/* Sites List */
.sites-content {
    padding: 1.5rem;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

/* Loading State */
.btn.loading {
    opacity: 0.6;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    margin-left: 0.5rem;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .login-box {
        padding: 2rem;
    }
    
    .nav-content {
        padding: 0 1rem;
    }
    
    .dashboard-header h2 {
        font-size: 1.5rem;
    }
    
    .result-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .result-actions {
        width: 100%;
    }
    
    .result-actions .btn {
        flex: 1;
    }
}

/* CNPJ Details Page */
.page-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 2rem;
    font-weight: 600;
    flex: 1;
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-item.full-width {
    grid-column: 1 / -1;
}

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

.detail-value {
    font-size: 1rem;
    color: var(--text-primary);
    word-break: break-word;
}

.details-content {
    padding: 1.5rem;
}

.activities-list {
    list-style: none;
    margin-top: 0.5rem;
}

.activities-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.activities-list li:last-child {
    border-bottom: none;
}

.members-list {
    padding: 1.5rem;
}

.member-item {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.member-item:last-child {
    margin-bottom: 0;
}

.member-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.member-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.action-footer {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--bg-hover);
    color: var(--text-muted);
    border-color: var(--border-color);
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Site Form Page */
.container-narrow {
    max-width: 800px;
}

.site-form {
    margin-bottom: 2rem;
}

.card-body {
    padding: 1.5rem;
}

.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    resize: vertical;
    transition: all 0.2s;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
}

.required {
    color: var(--accent-error);
}

.input-prefix {
    display: flex;
    align-items: center;
    gap: 0;
}

.input-prefix .prefix {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: 8px 0 0 8px;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-prefix input {
    border-radius: 0 8px 8px 0 !important;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 2rem;
}

.form-actions .btn {
    min-width: 150px;
}

@media (max-width: 768px) {
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}