/* Importar fontes modernas */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

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

:root {
    /* Cores primárias modernas */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    
    /* Cores de status */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Tema Claro (Padrão) */
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-tech: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --card-bg: #334155;
    --text-color: #f1f5f9;
    --text-muted: #cbd5e1;
    --text-light: #94a3b8;
    --border-color: #475569;
    --border-light: #334155;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-x: hidden;
}

/* Modal genérico */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
}
.modal {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    width: min(480px, 92vw);
}

/* Botões com ícones */
.icon-btn {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    border-radius: 10px;
    padding: .5rem .75rem;
    cursor: pointer;
}
.icon { font-size: 1.2rem; }
.icon-action {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1rem;
    width: 100%;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
}

/* Menu lateral */
.side-menu {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(320px, 86vw);
    background: var(--card-bg);
    border-left: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 250;
    display: flex;
    flex-direction: column;
}
.side-menu.open { transform: translateX(0); }
.side-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
}
.side-menu-content { padding: 1rem; display: grid; gap: .75rem; }
.side-menu-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.35);
    z-index: 240;
}

/* Cards de transação minimalistas */
.transaction-item {
    grid-template-columns: 1fr auto;
}
.transaction-info p { margin-bottom: .25rem; }
.transaction-amount { text-align: right; }


/* Animações globais */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 0 30px rgba(99, 102, 241, 0.6); }
}

/* Layout principal */
.screen {
    display: none;
    min-height: 100vh;
    animation: fadeIn 0.6s ease-out;
}

.screen.active {
    display: block;
}

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

/* Navbar moderna */
.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-bottom: 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.8);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container h1 {
    font-size: 1.75rem;
    color: var(--text-color);
    font-weight: 700;
    background: var(--gradient-tech);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Cards com glassmorphism */
.card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .card {
    background: rgba(51, 65, 85, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0.6;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.login-card {
    max-width: 500px;
    margin: 5rem auto;
    text-align: center;
}

/* Logo moderna */
.logo {
    text-align: center;
    margin-bottom: 3rem;
}

.logo h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient-tech);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo p {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Formulários modernos */
.form-group {
    margin-bottom: 2rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.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(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    font-family: 'Inter', sans-serif;
}

/* Botões modernos */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    text-transform: none;
    letter-spacing: 0.025em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    width: 100%;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    animation: glow 2s infinite;
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

.btn-refresh {
    background: var(--gradient-success);
    color: white;
    width: 100%;
    margin-top: 1.5rem;
}

.btn-refresh:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

/* QR Code moderno */
.qr-container {
    text-align: center;
    padding: 2.5rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    margin: 2rem 0;
    border: 2px solid var(--border-light);
}

.qr-container img {
    max-width: 280px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.secret-code {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    margin-top: 1rem;
    border: 2px solid var(--border-light);
}

.secret-code code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    color: var(--success-color);
    font-weight: 600;
    letter-spacing: 3px;
    word-break: break-all;
}

/* Mensagens modernas */
.info-text {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.warning-text {
    color: var(--warning-color);
    font-weight: 600;
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
}

.error-message {
    background: var(--gradient-secondary);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    font-weight: 500;
    box-shadow: var(--shadow-md);
}

.success-message {
    background: var(--gradient-success);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    font-weight: 500;
    box-shadow: var(--shadow-md);
}

.result-message {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 12px;
    font-weight: 500;
    box-shadow: var(--shadow-md);
}

.result-message.success {
    background: var(--gradient-success);
    color: white;
}

.result-message.error {
    background: var(--gradient-secondary);
    color: white;
}

/* Card de saldo moderno */
.balance-card {
    text-align: center;
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.balance-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.balance-amount {
    font-size: 4rem;
    font-weight: 800;
    margin: 2rem 0;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.balance-amount .currency {
    font-size: 2rem;
    opacity: 0.9;
    margin-right: 0.5rem;
}

.balance-info {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

/* Tabs modernas */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-light);
}

.tab-btn {
    padding: 1rem 2rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    border-radius: 8px 8px 0 0;
}

.tab-btn:hover {
    color: var(--text-color);
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.tab-content.active {
    display: block;
}

/* Filtros modernos */
.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-light);
}

/* Painel de filtros inicialmente fechado */
#filtersPanel { display: none; }
#filtersPanel.is-open { display: grid; }

.filters input,
.filters select {
    padding: 1rem 1.25rem;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

.filters input:focus,
.filters select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Lista de transações moderna */
.transactions-list {
    max-height: 600px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.transaction-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1.5rem;
    align-items: center;
    border: 1px solid var(--border-light);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.transaction-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.transaction-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.transaction-item:hover::before {
    opacity: 1;
}

.transaction-info h4 {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.transaction-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.transaction-amount {
    text-align: right;
}

.transaction-amount .amount {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    color: var(--text-color);
}

.transaction-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.5rem;
}

.status-paid { 
    background: var(--gradient-success); 
    color: white; 
    box-shadow: var(--shadow-sm);
}
.status-processing { 
    background: linear-gradient(135deg, #f59e0b, #fbbf24); 
    color: white; 
    box-shadow: var(--shadow-sm);
}
.status-refused { 
    background: var(--gradient-secondary); 
    color: white; 
    box-shadow: var(--shadow-sm);
}
.status-canceled { 
    background: var(--text-muted); 
    color: white; 
    box-shadow: var(--shadow-sm);
}

.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Controles de logs modernos */
.log-controls {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-light);
    flex-wrap: wrap;
    align-items: center;
}

.log-controls label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.95rem;
}

.log-controls select {
    padding: 0.75rem 1rem;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

.log-controls select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.logs-container {
    max-height: 700px;
    overflow-y: auto;
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 16px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    border: 1px solid var(--border-light);
}

.log-entry {
    padding: 1rem 1.5rem;
    margin-bottom: 0.75rem;
    border-left: 4px solid;
    background: var(--card-bg);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.log-entry:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.log-entry.info {
    border-left-color: var(--info-color);
}

.log-entry.success {
    border-left-color: var(--success-color);
}

.log-entry.error {
    border-left-color: var(--danger-color);
}

.log-entry.warning {
    border-left-color: var(--warning-color);
}

.log-time {
    color: var(--text-muted);
    font-size: 0.8rem;
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.log-message {
    color: var(--text-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.log-details {
    margin-top: 0.75rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: pre-wrap;
    word-break: break-all;
    border: 1px solid var(--border-light);
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 6px;
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Responsividade */
@media (max-width: 768px) {
    .filters {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .transaction-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .transaction-amount {
        text-align: center;
    }

    .tabs {
        flex-direction: column;
        gap: 0.25rem;
    }

    .tab-btn {
        text-align: center;
        border-radius: 8px;
        border-bottom: none;
        border-left: 3px solid transparent;
    }

    .tab-btn.active {
        border-left-color: var(--primary-color);
        border-bottom: none;
    }

    .balance-amount {
        font-size: 2.5rem;
    }

    .logo h1 {
        font-size: 2.5rem;
    }

    .log-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    .card {
        padding: 1.5rem;
        border-radius: 16px;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }

    .balance-amount {
        font-size: 2rem;
    }
}

/* Animações de entrada */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in {
    animation: slideIn 0.4s ease-out;
}

/* Efeitos de hover globais */
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-3px);
}

/* Indicadores de carregamento */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px 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); }
}