:root {
    --sidebar-bg: #000000;
    --sidebar-text: #ffffff;
    --checkout-bg: #ffffff;
    --checkout-text: #1d1d1f;
    --border-color: #e5e5e5;
    --accent-color: #635bff;
    --accent-hover: #544dc9;
    --accent-disabled: #a3a3ff;
    --amazon-yellow: #ffd814;
    --link-color: #0c66ff;
    --badge-green: #1a8917;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
#screen-success {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: #f6f9fc;
    overflow: auto;
}
#screen-success.hidden {
    display: none;
}
body {
    font-family: var(--font-main);
    background-color: var(--checkout-bg);
    color: var(--checkout-text);
    overflow-x: hidden;
}

.split-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    flex: 0 0 50%;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    justify-content: flex-end;
    padding: 60px 80px;
}

.sidebar-inner {
    width: 100%;
    max-width: 380px;
}

.logo-box {
    width: 42px;
    height: 42px;
    background-color: #1a1a1a;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 48px;
    border: 1px solid #333;
}

.logo-text {
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.5px;
}

.logo-i {
    color: #fff;
    opacity: 0.8;
}

.subscribe-title {
    font-size: 16px;
    font-weight: 500;
    color: #a1a1a1;
    margin-bottom: 24px;
}

.price-block {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
}

.price {
    font-size: 48px;
    font-weight: 700;
}

.period {
    font-size: 16px;
    color: #a1a1a1;
    line-height: 1;
}

.product-info {
    font-size: 16px;
    color: #a1a1a1;
}

/* Checkout Styling */
.checkout {
    flex: 0 0 50%;
    background-color: var(--checkout-bg);
    padding: 60px 80px;
    display: flex;
    justify-content: flex-start;
}

.checkout-inner {
    width: 100%;
    max-width: 380px;
}

.amazon-pay-button {
    width: 100%;
    height: 52px;
    background-color: var(--amazon-yellow);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 32px;
    transition: opacity 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.amazon-pay-button:hover {
    opacity: 0.9;
}

.amzn-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    padding-right: 4px;
}

.pay-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
    color: #333;
}

.divider {
    display: flex;
    align-items: center;
    margin-bottom: 32px;
}

.line {
    flex: 1;
    height: 1px;
    background-color: #f0f0f0;
}

.divider-text {
    padding: 0 16px;
    font-size: 12px;
    color: #a1a1a1;
    font-weight: 500;
}

.section {
    margin-bottom: 32px;
}

.section-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.email-input-box {
    display: flex;
    align-items: center;
    border: 1px solid #e3e8ee;
    border-radius: 8px;
    padding: 2px 16px;
    background-color: #fff;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.email-input-box:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.email-label {
    font-size: 14px;
    color: #4f566b;
    width: 60px;
    display: flex;
    align-items: center;
    height: 48px;
}

.email-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 0;
    font-size: 15px;
    color: #1a1f36;
    outline: none;
}

.link-action {
    font-size: 12px;
    color: #666;
}

.link-brand {
    color: var(--link-color);
    font-weight: 600;
}

.method-list {
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.method-item {
    display: flex;
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}

.method-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.method-item:last-child {
    border-bottom: none;
}

.method-item.active {
    background-color: #fff;
    z-index: 1;
}

/* Smooth expansion wrapper */
.card-form-expand-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1), margin-top 0.3s ease;
    overflow: hidden;
}

.method-item.active .card-form-expand-wrapper {
    grid-template-rows: 1fr;
    margin-top: 16px;
}

.card-details-form {
    min-height: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.method-item.active .card-details-form {
    opacity: 1;
}

.method-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.method-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-title-icon {
    width: 20px;
    height: 20px;
    color: #424770;
}

.method-name {
    font-size: 15px;
    font-weight: 600;
    color: #1d1d1f;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #424770;
    margin-bottom: 4px;
    margin-top: 12px;
}

.form-group {
    margin-bottom: 12px;
}

.card-input-group {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.03), 0 3px 6px rgba(0, 0, 0, 0.02);
}

.card-number-wrapper {
    position: relative;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.card-number-input {
    width: 100%;
    padding: 12px;
    border: none;
    outline: none;
    font-size: 14px;
}

.card-icons-inline {
    position: absolute;
    right: 12px;
    display: flex;
    gap: 6px;
    align-items: center;
    pointer-events: none;
}

.brand-icon {
    height: 20px;
    width: auto;
    object-fit: contain;
    opacity: 0.8;
}

.brand-icon:hover {
    opacity: 1;
}

.card-expiry-cvv {
    display: flex;
}

.card-expiry-input {
    width: 50%;
    padding: 12px 14px;
    border: none;
    border-right: 1px solid var(--border-color);
    outline: none;
    font-size: 14px;
    background: transparent;
}

.cvv-wrapper {
    position: relative;
    width: 50%;
    display: flex;
    align-items: center;
}

.card-cvv-input {
    width: 100%;
    padding: 12px 14px;
    border: none;
    outline: none;
    font-size: 14px;
    background: transparent;
}

.cvv-icon {
    position: absolute;
    right: 12px;
    width: 24px;
    height: 16px;
    pointer-events: none;
}

.brand-icon-small {
    height: 16px;
    width: auto;
    border: 1px solid #e6e6e6;
    border-radius: 2px;
    padding: 1px 3px;
}

.header-icons {
    display: flex;
    gap: 6px;
    transition: opacity 0.2s ease;
}

.method-item.active .header-icons {
    opacity: 0;
    pointer-events: none;
}

.method-title-icon {
    width: 20px;
    height: 14px;
    object-fit: contain;
}

.cardholder-name-input,
.country-select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    outline: none;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: #fff;
}

.cardholder-name-input:focus,
.country-select:focus,
.card-input-group:focus-within {
    border-color: #007aff;
    box-shadow: 0 0 0 1px #007aff;
}

.country-select {
    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 d='M2 4l4 4 4-4' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.method-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.method-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon {
    width: 20px;
    height: 20px;
    color: #333;
}

.method-name {
    font-size: 14px;
    font-weight: 500;
}

.badges {
    display: flex;
    gap: 4px;
}

.badge {
    font-size: 9px;
    font-weight: 700;
    border: 1px solid #ddd;
    border-radius: 2px;
    padding: 2px 4px;
    color: #666;
}

.promo-badge {
    background-color: var(--badge-green);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
}

.pay-button {
    width: 100%;
    padding: 16px;
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 24px;
    transition: background-color 0.15s, transform 0.1s;
}

.pay-button:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.pay-button:active:not(:disabled) {
    transform: scale(0.98);
}

.legal-text {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 32px;
    text-align: center;
}

.footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 12px;
    color: #a1a1a1;
}

.footer a {
    color: inherit;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer-separator {
    color: #ddd;
}

/* Radio styling */
input[type="radio"] {
    width: 18px;
    height: 18px;
    border: 1px solid #ddd;
    border-radius: 50%;
    appearance: none;
    -webkit-appearance: none;
    background: #fff;
    cursor: pointer;
    position: relative;
}

input[type="radio"]:checked {
    border-color: var(--accent-color);
    background-color: #fff;
}

input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

@media (max-width: 900px) {
    .split-container {
        flex-direction: column;
    }

    .sidebar {
        padding: 40px 20px;
        justify-content: center;
    }

    .checkout {
        padding: 40px 20px;
        justify-content: center;
    }
}

/* Verification Flow Screens */
.hidden {
    display: none !important;
}

.flow-screen {
    animation: screenFadeIn 0.4s ease-out;
}

@keyframes screenFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 24px;
}

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

    100% {
        transform: rotate(360deg);
    }
}

.processing-text {
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

.verification-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 20px;
}

.verification-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1f36;
}

.verification-desc {
    font-size: 14px;
    color: #697386;
    margin-bottom: 32px;
    line-height: 1.5;
}

.otp-container {
    width: 100%;
    margin-bottom: 32px;
}

.otp-input {
    width: 100%;
    padding: 16px;
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    letter-spacing: 8px;
    border: 1px solid #e3e8ee;
    border-radius: 8px;
    background-color: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.otp-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
    outline: none;
}

.verify-button {
    width: 100%;
    padding: 14px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 16px;
    transition: background-color 0.2s;
}

.verify-button:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.verify-button.secondary {
    background-color: #f7f8fa;
    color: #3c4257;
    border: 1px solid #e3e8ee;
}

.verify-button.secondary:hover {
    background-color: #edeff2;
}

.resend-link {
    font-size: 14px;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 40px;
}

.resend-link:hover {
    text-decoration: underline;
}

.bank-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #697386;
    font-size: 12px;
}

.bank-footer::before {
    content: '';
    width: 12px;
    height: 12px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23697386' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='11' width='18' height='11' rx='2' ry='2'%3E%3C/rect%3E%3Cpath d='M7 11V7a5 5 0 0 1 10 0v4'%3E%3C/path%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.app-icon-container {
    margin-bottom: 24px;
    background-color: #f7f8fa;
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 32px;
}

.pulse-ring {
    width: 60px;
    height: 60px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    position: absolute;
    top: -45px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    50% {
        opacity: 0.2;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.waiting-text {
    font-size: 14px;
    color: #697386;
    font-style: italic;
}

/* Crypto Flow Styles */
.text-center {
    text-align: center;
}

.crypto-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0 32px;
}

.crypto-item {
    border: 1px solid #e3e8ee;
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: #ffffff;
}

.crypto-item:hover {
    border-color: var(--accent-color);
    background: #f8fafc;
    transform: translateY(-2px);
}

.crypto-item.active {
    border-color: var(--accent-color);
    background: #f0f7ff;
    box-shadow: 0 0 0 1px var(--accent-color);
}

.coin-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.coin-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.coin-icon.btc {
    background-color: rgba(247, 147, 26, 0.1);
}

.coin-icon.eth {
    background-color: rgba(98, 126, 234, 0.1);
}

.coin-icon.usdt {
    background-color: rgba(38, 161, 123, 0.1);
}

.coin-icon.trx {
    background-color: rgba(239, 0, 50, 0.1);
}

.coin-name {
    font-size: 14px;
    font-weight: 600;
    color: #1a1f36;
}

.network-selection {
    text-align: left;
    margin-bottom: 32px;
}

.section-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #4f566b;
    margin-bottom: 8px;
}

.select-wrapper {
    position: relative;
}

.crypto-select-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e3e8ee;
    border-radius: 8px;
    font-size: 15px;
    color: #1a1f36;
    background-color: #fff;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 6px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%234F566B' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    pointer-events: none;
}

/* Crypto Payment Details */
.qr-container {
    margin: 24px 0;
    display: flex;
    justify-content: center;
}

.qr-box {
    position: relative;
    padding: 16px;
    background: #fff;
    border: 1px solid #e3e8ee;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.qr-box img {
    display: block;
}

.coin-badge-overlay {
    position: absolute;
    bottom: -8px;
    right: -8px;
    width: 32px;
    height: 32px;
    background: #fff;
    border-radius: 50%;
    padding: 4px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid #e3e8ee;
}

.coin-badge-overlay img {
    width: 100%;
    height: 100%;
}

.payment-details-card {
    background: #f7f8fa;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    text-align: left;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.detail-row.stack {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.detail-row:last-child {
    margin-bottom: 0;
}

.detail-label {
    font-size: 13px;
    color: #697386;
}

.detail-value-box {
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-value {
    font-weight: 600;
    color: #1a1f36;
    font-size: 15px;
}

.small-copy-btn {
    background: #fff;
    border: 1px solid #e3e8ee;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-color);
    cursor: pointer;
}

.address-box-premium {
    width: 100%;
    background: #fff;
    border: 1px solid #e3e8ee;
    border-radius: 8px;
    padding: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.address-text {
    font-family: monospace;
    font-size: 13px;
    color: #1a1f36;
    word-break: break-all;
    line-height: 1.4;
}

.copy-icon-btn {
    background: transparent;
    border: none;
    color: #697386;
    cursor: pointer;
    flex-shrink: 0;
    padding: 4px;
    border-radius: 4px;
    transition: background 0.2s;
}

.copy-icon-btn:hover {
    background: #f7f8fa;
    color: var(--accent-color);
}

.payment-status-section {
    margin-bottom: 32px;
}

.status-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
    color: #1a1f36;
    font-weight: 500;
    margin-bottom: 8px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #22c55e;
    border-radius: 50%;
    animation: simple-pulse 2s infinite;
}

@keyframes simple-pulse {
    0% {
        transform: scale(0.95);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.2);
        opacity: 1;
    }

    100% {
        transform: scale(0.95);
        opacity: 0.5;
    }
}

.countdown-timer {
    font-size: 13px;
    color: #697386;
}

#crypto-timer {
    font-weight: 600;
    color: #1a1f36;
}

.crypto-secure-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
    color: #697386;
    font-size: 12px;
}

/* Validation Styles */
.error-text {
    color: #df1b41;
    font-size: 13px;
    margin-top: 4px;
    font-weight: 500;
}

.email-input.error {
    border-color: #df1b41;
}

.card-number-input.error,
.card-expiry-input.error,
.card-cvv-input.error,
.cardholder-name-input.error,
.card-zip-input.error {
    color: #df1b41;
}

.card-input-group.has-error {
    border-color: #df1b41;
    box-shadow: 0 0 0 1px #df1b41;
}

.pay-button:disabled,
.verify-button:disabled {
    background-color: var(--accent-disabled);
    color: #fff;
    opacity: 1;
    cursor: not-allowed;
}

.hidden {
    display: none !important;
}

/* ZIP Code Field Styles */
.zip-group {
    margin-top: 12px;
}

.card-zip-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    color: #30313d;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    background-color: #fff;
}

.card-zip-input:focus {
    border-color: #007aff;
    box-shadow: 0 0 0 1px #007aff;
}

.pin-input,
.cvv-retry-input,
.secret-input {
    width: 100%;
    padding: 16px;
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    border: 1px solid #e3e8ee;
    border-radius: 8px;
    background-color: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.pin-input:focus,
.cvv-retry-input:focus,
.secret-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
    outline: none;
}

.otp-input.error,
.pin-input.error,
.cvv-retry-input.error,
.secret-input.error {
    border-color: #df1b41;
}
#screen-success {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: #fff;
    text-align: center;
    padding: 20px;
}

.success-content {
    max-width: 400px;
    animation: fadeIn 0.8s ease-out;
}

.success-title {
    font-size: 24px;
    font-weight: 700;
    color: #1a1f36;
    margin-bottom: 12px;
}

.success-message {
    font-size: 16px;
    color: #4f566b;
    line-height: 1.5;
    margin-bottom: 32px;
}

.done-button {
    background-color: var(--primary-color);
    color: #fff;
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.done-button:hover {
    background-color: #0048aa;
}

/* Checkmark Animation */
.checkmark-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
}

.checkmark {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: block;
    stroke-width: 2;
    stroke: #22c55e;
    stroke-miterlimit: 10;
    box-shadow: inset 0px 0px 0px #22c55e;
    animation: fill .4s ease-in-out .4s forwards, scale .3s ease-in-out .9s both;
}

.checkmark__circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 2;
    stroke-miterlimit: 10;
    stroke: #22c55e;
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark__check {
    transform-origin: 50% 50%;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.8s forwards;
}

@keyframes stroke {
    100% { stroke-dashoffset: 0; }
}

@keyframes scale {
    0%, 100% { transform: none; }
    50% { transform: scale3d(1.1, 1.1, 1); }
}

@keyframes fill {
    100% { box-shadow: inset 0px 0px 0px 40px #22c55e; stroke: #fff; }
}

/* Mobile Responsiveness Audit */
@media (max-width: 900px) {
    .split-container {
        flex-direction: column;
        height: auto;
        overflow-y: visible;
    }

    .sidebar {
        width: 100%;
        min-height: auto;
        padding: 40px 20px;
        position: relative;
    }

    .checkout {
        width: 100%;
        padding: 40px 20px;
        background: #fff;
    }

    .form-container {
        max-width: 100%;
    }

    .summary-content {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .method-item {
        padding: 12px;
    }
    
    .checkout-title {
        font-size: 20px;
    }
    
    .price {
        font-size: 32px;
    }
}