/* Reset e variáveis CSS */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;

    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --border-radius: 8px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
}

.nav {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.nav-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Seções */
.section {
    display: none;
    padding: 2rem 0;
}

.section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h1 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.quote-info {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

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

.card-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

/* Formulários */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

input, textarea, select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-primary);
}

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

textarea {
    resize: vertical;
    min-height: 80px;
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
    background: #475569;
}

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

.btn-success:hover {
    background: #059669;
}

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

.btn-info:hover {
    background: #0891b2;
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

/* Quote Builder */
.quote-builder {
    margin-top: 2rem;
}

.builder-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.input-column, .preview-column {
    min-height: 600px;
}

/* Items List */
.items-list {
    max-height: 400px;
    overflow-y: auto;
}

.item-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 0.75rem;
    background: var(--bg-secondary);
}

.item-info {
    flex: 1;
}

.item-description {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

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

.item-total {
    font-weight: 600;
    color: var(--primary-color);
}

.item-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    padding: 0.5rem;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-edit {
    background: var(--info-color);
    color: white;
}

.btn-edit:hover {
    background: #0891b2;
}

.btn-delete {
    background: var(--danger-color);
    color: white;
}

.btn-delete:hover {
    background: #dc2626;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

/* Quote Preview */
.quote-preview {
    font-size: 0.875rem;
}

.quote-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

.company-info {
    margin-bottom: 1.5rem;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.company-details {
    color: var(--text-secondary);
    line-height: 1.4;
}

.quote-details {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

.quote-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

.quote-table th {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
}

.quote-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.quote-table tbody tr:hover {
    background: var(--bg-tertiary);
}

.quote-totals {
    display: flex;
    justify-content: flex-end;
    margin-top: 1rem;
}

.totals-box {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--border-radius);
    min-width: 250px;
}

.total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
}

.total-row.final {
    border-top: 2px solid var(--primary-color);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--primary-color);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
}

/* Quotes Grid */
.quotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.quote-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.quote-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.quote-card-header {
    padding: 1.5rem;
    background: var(--primary-color);
    color: white;
}

.quote-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.quote-card-meta {
    font-size: 0.875rem;
    opacity: 0.9;
}

.quote-card-body {
    padding: 1.5rem;
}

.quote-card-total {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--success-color);
    margin-bottom: 1rem;
}

.quote-card-actions {
    display: flex;
    gap: 0.5rem;
}

/* Logo Upload */
.logo-upload {
    position: relative;
}

.logo-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: var(--transition);
}

.logo-preview:hover {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.logo-preview img {
    max-width: 100px;
    max-height: 100px;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
}

.logo-preview i {
    font-size: 2rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    margin: 2rem;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--danger-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Preview Actions */
.preview-actions {
    display: flex;
    gap: 0.5rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        width: 100%;
        justify-content: center;
    }

    .nav-btn {
        flex: 1;
        justify-content: center;
        padding: 0.5rem;
        font-size: 0.875rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .section-header h1 {
        font-size: 1.5rem;
    }

    .builder-columns {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

    .quote-details {
        flex-direction: column;
        gap: 0.5rem;
    }

    .quote-table {
        font-size: 0.75rem;
    }

    .quotes-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        width: 95%;
        margin: 1rem;
    }

    .modal-footer {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }

    .card-body {
        padding: 1rem;
    }

    .section {
        padding: 1rem 0;
    }

    .quote-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .item-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .item-actions {
        align-self: flex-end;
    }
}

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

.section.active {
    animation: fadeIn 0.3s ease;
}

.card {
    animation: fadeIn 0.3s ease;
}

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

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* Success/Error messages */
.message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.message.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
    color: var(--warning-color);
}

/* Print styles */
@media print {
    .header, .nav, .preview-actions, .modal, .btn {
        display: none !important;
    }

    .section {
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #000;
    }

    .quote-preview {
        font-size: 12px;
    }
}