:root {
    --primary-color: #4c86f9;
    --secondary-color: #fafafa;
    --text-color: #333333;
    --light-gray: #eeeeee;
    --medium-gray: #cccccc;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: #f5f5f7;
    color: var(--text-color);
    overscroll-behavior: contain;
}

.app-container {
    max-width: 100%;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    padding-bottom: 80px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 16px;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: var(--box-shadow);
}

header h1 {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 12px;
}

.search-container {
    display: flex;
    margin: 0 auto;
    max-width: 500px;
}

.search-container input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 1rem;
}

.search-container button {
    background: white;
    border: none;
    padding: 0 15px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
    color: var(--primary-color);
}

.filter-options {
    display: flex;
    overflow-x: auto;
    padding: 12px;
    background: white;
    margin-bottom: 1px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 74px;
    z-index: 5;
}

.filter-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--medium-gray);
    border-radius: 20px;
    margin-right: 10px;
    white-space: nowrap;
    cursor: pointer;
    font-size: 0.85rem;
}

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

main {
    padding: 16px;
    padding-bottom: 80px;
}

.voucher-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--box-shadow);
    position: relative;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.voucher-card:active {
    transform: scale(0.98);
}

.voucher-number {
    font-size: 1.5rem;
    font-weight: bold;
    margin: 15px 0;
    color: var(--primary-color);
    text-align: center;
}

.voucher-desc {
    margin-bottom: 12px;
    color: #555;
}

.voucher-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    font-size: 0.85rem;
    gap: 10px;
}

.voucher-value {
    font-weight: bold;
}

.voucher-expiry {
    color: #777;
}

.voucher-status {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: bold;
}

.status-valid {
    background: rgba(76, 175, 80, 0.15);
    color: var(--success-color);
}

.status-expired {
    background: rgba(244, 67, 54, 0.15);
    color: var(--danger-color);
}

.copy-btn, .generate-btn {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: background 0.2s ease;
}

.generate-btn:active {
    background: #3a6bc7;
    transform: scale(0.98);
}

.loading {
    text-align: center;
    padding: 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 10px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.add-voucher-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 100;
}

#add-voucher-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

#add-voucher-btn:active {
    background-color: #3a6bc7;
    transform: scale(0.95);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background: white;
    margin: 15% auto;
    width: 90%;
    max-width: 500px;
    border-radius: var(--border-radius);
    padding: 20px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-modal {
    position: absolute;
    right: 15px;
    top: 10px;
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--medium-gray);
    border-radius: 6px;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 6px;
    width: 100%;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 10px;
}

.btn-primary:active {
    background: #3a6bc7;
}

.voucher-detail-header {
    text-align: center;
    margin-bottom: 20px;
}

.voucher-detail-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 10px 0;
    text-align: center;
}

.voucher-detail-code {
    font-size: 2.2rem;
    font-weight: bold;
    color: var(--success-color);
    margin: 15px 0;
    word-break: break-all;
    text-align: center;
    padding: 15px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: var(--border-radius);
    animation: fadeIn 0.3s ease;
}

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

.voucher-detail-actions {
    margin: 25px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.action-btn {
    flex: 1;
    min-width: 120px;
    padding: 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
}

.action-btn i {
    font-size: 1.2rem;
}

.copy-btn-detail.import-btn {
    background: var(--light-gray);
    color: var(--text-color);
}

.filter-options .import-btn {
    margin-left: auto;
    background-color: rgba(76, 134, 249, 0.2);
    color: var(--primary-color);
}

.delete-btn {
    background: rgba(244, 67, 54, 0.15);
    color: var(--danger-color);
}

.edit-btn {
    background: rgba(76, 175, 80, 0.15);
    color: var(--success-color);
}

.voucher-detail-info {
    border-top: 1px solid var(--light-gray);
    margin-top: 15px;
    padding-top: 15px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--light-gray);
}

/* Estilos para o faturamento */
.faturamento-btn {
    background-color: rgba(0, 150, 136, 0.15);
    color: #009688;
}

.faturamento-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 20px 0;
}

.faturamento-card {
    background: #f5f5f5;
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.faturamento-card.highlight {
    grid-column: span 2;
    background: rgba(0, 150, 136, 0.1);
    border: 1px solid rgba(0, 150, 136, 0.2);
}

.faturamento-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.faturamento-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-color);
}

.highlight .faturamento-value {
    color: #009688;
    font-size: 2.2rem;
}

.faturamento-period {
    margin-top: 30px;
}

.faturamento-period h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
    padding-bottom: 8px;
}

.faturamento-stats {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.period-row {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 4px;
    border-left: 4px solid var(--primary-color);
}

.empty-data {
    text-align: center;
    color: var(--text-secondary);
    padding: 20px;
    font-style: italic;
}

/* Media queries para dispositivos menores */
@media (max-width: 480px) {
    .faturamento-content {
        grid-template-columns: 1fr;
    }
    
    .faturamento-card.highlight {
        grid-column: span 1;
    }
}

.detail-label {
    font-weight: 500;
    color: #777;
}

.detail-value {
    font-weight: 500;
    text-align: right;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #777;
}

.empty-state i {
    font-size: 3rem;
    color: var(--medium-gray);
    margin-bottom: 15px;
}

@media (min-width: 768px) {
    .app-container {
        max-width: 768px;
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    }
    
    header h1 {
        font-size: 1.8rem;
    }
}

/* Para garantir uma experiência de app completa */
@media (display-mode: standalone) {
    body {
        background-color: white;
    }
}

/* Para notificação de cópia */
.copy-toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.copy-toast.show {
    opacity: 1;
}