/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --sidebar-bg: #1e293b;
    --sidebar-text: #e2e8f0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
}

.logo {
    padding: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.logo .tagline {
    font-size: 0.8rem;
    color: var(--secondary-color);
    margin-top: 4px;
    display: block;
}

.nav-menu {
    flex: 1;
    padding: 16px 12px;
}

.nav-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--sidebar-text);
    font-size: 0.95rem;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
    text-align: left;
    margin-bottom: 4px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.1);
}

.nav-item.active {
    background: var(--primary-color);
    color: #fff;
}

.nav-item .icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
    color: var(--secondary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    max-width: 1200px;
}

/* Sections */
.section {
    display: none;
}

.section.active {
    display: block;
}

.section-header {
    margin-bottom: 32px;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}

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

/* Chat Container */
.chat-container {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    overflow: hidden;
}

.chat-messages {
    padding: 24px;
    max-height: 200px;
    overflow-y: auto;
}

.message {
    margin-bottom: 16px;
}

.message.bot .message-content {
    background: var(--background);
    padding: 16px;
    border-radius: 12px;
    max-width: 80%;
}

.message.bot .message-content p {
    margin-bottom: 8px;
}

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

/* Form Styles */
.tutela-form {
    padding: 32px;
    border-top: 1px solid var(--border-color);
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.form-step h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group .help-text {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* Progress Indicator */
.form-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--background);
}

.progress-step {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all 0.3s;
}

.progress-step.active {
    background: var(--primary-color);
    color: #fff;
}

.progress-step.completed {
    background: var(--success-color);
    color: #fff;
}

.progress-line {
    width: 60px;
    height: 3px;
    background: var(--border-color);
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

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

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}

.btn-large {
    padding: 14px 32px;
    font-size: 1.1rem;
}

/* Casos List */
.casos-container {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.casos-list {
    padding: 24px;
}

.caso-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 12px;
    transition: all 0.2s;
}

.caso-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.caso-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.caso-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.caso-status {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.caso-status.pendiente {
    background: #fef3c7;
    color: #92400e;
}

.caso-status.procesando {
    background: #dbeafe;
    color: #1e40af;
}

.caso-status.completado {
    background: #dcfce7;
    color: #166534;
}

.caso-status.error {
    background: #fee2e2;
    color: #991b1b;
}

.caso-actions {
    display: flex;
    gap: 8px;
}

/* Search Container */
.search-container {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 24px;
}

.search-form {
    margin-bottom: 24px;
}

.search-input-group {
    display: flex;
    gap: 12px;
}

.search-input-group input {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.search-input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-results {
    min-height: 200px;
}

.result-item {
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 12px;
}

.result-item h4 {
    font-weight: 600;
    margin-bottom: 8px;
}

.result-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.result-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.result-item a:hover {
    text-decoration: underline;
}

/* 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(--surface);
    border-radius: 16px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

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

.modal-body pre {
    white-space: pre-wrap;
    font-family: inherit;
    line-height: 1.8;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.95);
    z-index: 2000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 24px;
}

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

.loading-overlay p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.loading-overlay .loading-subtext {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 8px;
}

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

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-secondary);
}

.empty-state h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .main-content {
        margin-left: 0;
        padding: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .app-container {
        flex-direction: column;
    }

    .nav-menu {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .nav-item {
        flex: 1;
        min-width: 140px;
    }
}