:root {
    --bg-color: #f8f8f8;
    --text-color: #333;
    --input-bg: #fff;
    --border-color: #e5e5e5;
    --placeholder-color: #323232;
    --accent-color: #00cc00;
    --button-bg: #fff;
    --button-text: #000;
    --link-color: #666;
    --error-color: #f44336;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.header {
    background-color: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.status-bar {
    padding: 5px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
}

.merchant-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    background-color: #1c1c1c;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 10;
    cursor: pointer;
}

.merchant-info {
    display: flex;
    align-items: flex-end;
}

.merchant-icon {
    margin-right: 15px;
}

.icon-circle {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    background-color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.merchant-name {
    font-size: 16px;
    font-weight: 500;
    color: #fff;
}

.amount {
    font-size: 16px;
    font-weight: 600;
    color: #000;
}

.dropdown-icon {
    margin-left: 10px;
    color: #999;
    transition: transform 0.3s ease;
}

.dropdown-icon.active {
    transform: rotate(180deg);
}

.payment-container {
    padding: 15px;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

.payment-method {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.method-icon {
    margin-right: 15px;
    width: 24px;
    height: 24px;
}

.method-text {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
}

.method-action a {
    color: var(--link-color);
    text-decoration: none;
    font-size: 14px;
}

form {
    width: 100%;
}

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

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.form-group.half {
    flex: 1;
    position: relative;
}

.form-group.large {
    flex: 2;
}

.form-group.small {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-color);
}

input, select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--input-bg);
    color: var(--text-color);
}

input::placeholder {
    color: var(--placeholder-color);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
}

input#ddi {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-color);
}

.ddi-select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--input-bg);
    color: var(--text-color);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888888' d='M6 8.825L1.175 4 2.05 3.125 6 7.075 9.95 3.125 10.825 4 6 8.825z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px;
    cursor: pointer;
}

.ddi-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.ddi-select option {
    padding: 10px;
    font-size: 16px;
}

.info-icon {
    position: absolute;
    right: 15px;
    top: 42px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--link-color);
}

.error-message {
    color: var(--error-color);
    font-size: 12px;
    margin-top: 5px;
    display: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.error-message.active {
    display: flex;
}

/* Validation styles */
input.invalid, select.invalid {
    border-color: #f44336 !important;
    box-shadow: 0 0 0 1px #f4433622;
}

.terms-container {
    margin: 20px 0 18px 0;
    text-align: center;
    font-size: 13px;
    color: #ccc;
    line-height: 1.4;
    padding: 0 10px;
}

.terms-link {
    color: #fff;
    text-decoration: underline;
}

.terms-link:hover {
    color: #00cc00;
}

.pay-button {
    width: 100%;
    padding: 15px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 9999px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: background 0.2s, color 0.2s;
}

.pay-button:hover {
    background-color: #222;
    color: #fff;
}

.card-type-icon {
    position: absolute;
    right: 15px;
    top: 42px;
    width: 30px;
    height: 20px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

/* Media queries for responsiveness */
@media (min-width: 768px) {
    .payment-container {
        padding: 30px;
    }
    
    .merchant-header {
        padding: 20px;
    }
    
    .merchant-name, .amount {
        font-size: 18px;
    }
    
    .icon-circle {
        width: 40px;
        height: 40px;
    }
    
    label {
        font-size: 15px;
    }
    
    .pay-button {
        padding: 18px;
        font-size: 18px;
    }
    
    .terms-container {
        font-size: 13px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --text-color: #fff;
        --input-bg: #232323;
        --border-color: #323232;
        --placeholder-color: #888;
        --link-color: #aaa;
    }
    
    .merchant-header {
        background-color: var(--bg-color);
    }
    
    input,
    select,
    .ddi-select {
        background-color: var(--input-bg) !important;
        color: var(--text-color);
        border-color: var(--border-color);
    }
    
    input::placeholder,
    select::placeholder {
        color: var(--placeholder-color);
        opacity: 1;
    }
    
    .ddi-select option {
        background-color: var(--input-bg);
        color: var(--text-color);
    }
    
    /* Borda dos campos em foco no dark */
    input:focus,
    select:focus {
        border-color: var(--border-color);
        background-color: var(--input-bg);
        box-shadow: 0 0 0 2px rgba(50,50,50,0.2);
    }
    
    /* Campos preenchidos mantêm fundo e borda no dark */
    input[type="text"]:not(:placeholder-shown),
    input[type="email"]:not(:placeholder-shown),
    input[type="tel"]:not(:placeholder-shown),
    input[type="password"]:not(:placeholder-shown),
    select:not([value=""]),
    select option:checked {
        background-color: var(--input-bg) !important;
        border-color: var(--border-color) !important;
        color: var(--text-color);
    }
    
    /* Erro: borda vermelha, fundo cinza escuro */
    input.error,
    select.error,
    .form-group.has-error input,
    .form-group.has-error select {
        border-color: #ff4d4f !important;
        background-color: #232323 !important;
    }
    /* X de erro com círculo vazado */
    .error-icon-x {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 18px;
        height: 18px;
        border-radius: 50%;
        border: 2px solid #ff4d4f;
        background: transparent;
        color: #ff4d4f;
        font-size: 13px;
        font-weight: bold;
        margin-right: 2px;
        flex-shrink: 0;
        box-shadow: none;
    }
    /* Mensagem de erro */
    .error-message {
        color: #ff4d4f;
        font-size: 14px;
        margin-top: 4px;
        display: flex;
        align-items: center;
        gap: 6px;
    }
}

/* Improvements for touch devices */
@media (hover: none) {
    /* Increase clickable areas for touch */
    input, select, .pay-button, .method-action a {
        min-height: 44px;
    }
    
    /* Visual feedback on touch */
    .pay-button:active {
        opacity: 0.8;
        transform: scale(0.98);
    }
    
    input:focus, select:focus {
        background-color: rgba(0, 204, 0, 0.05);
    }
    
    /* Adjustments for landscape mode on mobile devices */
    @media (max-height: 480px) and (orientation: landscape) {
        .payment-container {
            padding-bottom: 20px;
        }
        
        .form-row {
            flex-direction: row;
        }
        
        .form-group {
            margin-bottom: 15px;
        }
        
        .merchant-header {
            position: relative;
        }
    }
}

/* Error Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.error-modal {
    background-color: white;
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transform: translateY(20px);
    transition: transform 0.3s;
}

.modal-overlay.active .error-modal {
    transform: translateY(0);
}

.error-icon {
    width: 80px;
    height: 80px;
    background-color: #ff3b30;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.error-title {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 15px;
    font-weight: 500;
}

.error-message-text {
    color: #666;
    font-size: 1rem;
    margin-bottom: 25px;
    padding: 0 10px;
    line-height: 1.5;
}

.retry-button {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: #000;
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.retry-button:hover {
    background-color: #333;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    padding: 5px;
}

.close-modal:hover {
    color: #333;
}

/* Header details expandable section */
.header-details {
    background-color: #1c1c1c;
    color: #fff;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.header-details.active {
    max-height: 300px; /* Adjust as needed */
}

.header-details-content {
    padding: 15px;
}

.order-summary {
    margin-bottom: 20px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 16px;
}

.summary-row.total {
    margin-top: 15px;
    font-weight: bold;
    font-size: 18px;
}

.customer-details {
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.customer-details .customer-name {
    text-transform: uppercase;
    font-weight: 500;
    font-size: 16px;
    margin-bottom: 5px;
}

.customer-details .customer-type {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

/* === Modal de Erro Customizado (ajustado para o layout da imagem) === */
.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.18);
  justify-content: center;
  align-items: center;
}
.modal.active {
  display: flex;
}
.modal-content {
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  padding: 40px 24px 32px 24px;
  max-width: 350px;
  width: 90vw;
  text-align: center;
  position: relative;
  animation: modalIn 0.2s cubic-bezier(.4,0,.2,1);
}
@keyframes modalIn {
  from { transform: translateY(40px) scale(0.98); opacity: 0; }
  to { transform: none; opacity: 1; }
}
.close-modal {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 28px;
  color: #222;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.close-modal:hover {
  background: #f2f2f2;
  color: #000;
}
.modal-icon-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}
.modal-icon-circle {
  width: 72px;
  height: 72px;
  background: #f44336;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}
.modal-icon-exclamation {
  color: #fff;
  font-size: 38px;
  font-weight: bold;
  line-height: 1;
  margin-top: -2px;
}
.modal-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 16px 0;
  color: #222;
  line-height: 1.3;
}
.modal-message {
  font-size: 1.02rem;
  color: #666;
  margin-bottom: 36px;
  line-height: 1.5;
}
.modal-retry-btn {
  width: 100%;
  background: #111;
  color: #fff;
  border: none;
  border-radius: 999px;
  font-size: 1.13rem;
  font-weight: 500;
  padding: 18px 0;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.modal-retry-btn:hover {
  background: #222;
}

.submit-button {
  width: 100%;
  background: #fff;
  color: #111;
  border: none;
  border-radius: 999px;
  font-size: 1.13rem;
  font-weight: 500;
  padding: 18px 0;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  margin-top: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  text-align: center;
  margin-bottom: 16px;
}
.submit-button:hover {
  background: #f2f2f2;
  color: #000;
}

.error-icon-x {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid #f44336;
    background: transparent;
    color: #f44336;
    font-size: 13px;
    font-weight: bold;
    margin-right: 2px;
    flex-shrink: 0;
    box-shadow: none;
}

/* Estilos para campos de formulário */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
select {
    width: 100%;
    padding: 12px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    background-color: #f5f5f5;
    transition: all 0.3s ease;
}

/* Estilo para campos preenchidos */
input[type="text"]:not(:placeholder-shown),
input[type="email"]:not(:placeholder-shown),
input[type="tel"]:not(:placeholder-shown),
input[type="password"]:not(:placeholder-shown),
select:not([value=""]),
select option:checked {
    background-color: #f5f5f5;
    border-color: #e0e0e0;
    color: #333;
}

/* Estilo para campos em foco */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: #e0e0e0;
    background-color: #f5f5f5;
    box-shadow: 0 0 0 2px rgba(224, 224, 224, 0.2);
}

/* Estilo para campos desabilitados */
input[type="text"]:disabled,
input[type="email"]:disabled,
input[type="tel"]:disabled,
input[type="password"]:disabled,
select:disabled {
    background-color: #f5f5f5;
    border-color: #e0e0e0;
    color: #666;
    cursor: not-allowed;
}

/* Estilo para campos com erro */
input[type="text"].error,
input[type="email"].error,
input[type="tel"].error,
input[type="password"].error,
select.error {
    border-color: #ff4d4f;
    background-color: #fff2f0;
}

/* Estilo para o select */
select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

/* Estilo para o select quando aberto */
select:focus {
    background-color: #f5f5f5;
    border-color: #e0e0e0;
}

/* Estilo para as opções do select */
select option {
    background-color: #f5f5f5;
    color: #333;
    padding: 12px;
}

/* Estilo para as opções do select quando selecionadas */
select option:checked {
    background-color: #f5f5f5;
    color: #333;
}

/* Estilo para o placeholder */
::placeholder {
    color: #999;
    opacity: 1;
}

/* Estilo para o placeholder em campos preenchidos */
input:not(:placeholder-shown)::placeholder {
    color: #666;
}

/* Estilo para o grupo de formulário */
.form-group {
    margin-bottom: 20px;
}

/* Estilo para o label */
.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

/* Estilo para mensagens de erro */
.error-message {
    color: #ff4d4f;
    font-size: 14px;
    margin-top: 4px;
    display: none;
}

/* Estilo para campos com erro */
.form-group.has-error input,
.form-group.has-error select {
    border-color: #ff4d4f;
    background-color: #fff2f0;
}

/* Estilo para mensagens de erro visíveis */
.form-group.has-error .error-message {
    display: block;
}