/* ============================================
   State Tax Portal - Professional PayPal Theme
   PYUSD Payment Integration Styles
   ============================================ */

/* CSS Variables - PayPal Brand Colors */
:root {
    /* Primary Colors */
    --paypal-blue: #003087;
    --paypal-light-blue: #0070BA;

    /* Neutrals */
    --color-white: #FFFFFF;
    --color-light-gray: #F7F9FA;
    --color-medium-gray: #6C757D;
    --color-dark-gray: #343A40;
    --color-black: #000000;

    /* Borders & Dividers */
    --border-color: #DEE2E6;
    --divider-color: #F1F3F4;

    /* Feedback Colors */
    --color-success: #28A745;
    --color-error: #DC3545;
    --color-warning: #FFC107;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 40px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

body {
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: var(--font-weight-regular);
    line-height: 1.5;
    color: var(--color-dark-gray);
    background-color: var(--color-light-gray);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Header
   ============================================ */

.site-header {
    background-color: var(--paypal-blue);
    color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-text {
    font-size: 18px;
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
}

.header-nav {
    display: flex;
    gap: var(--spacing-sm);
}

.icon-button {
    background: transparent;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.icon-button:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    min-height: calc(100vh - 140px);
    padding: var(--spacing-xxl) var(--spacing-md);
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Section Management
   ============================================ */

.payment-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.payment-section.active {
    display: block;
}

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

/* ============================================
   Page Header
   ============================================ */

.page-header {
    margin-bottom: var(--spacing-xxl);
    text-align: center;
}

.page-title {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 16px;
    color: var(--color-medium-gray);
    line-height: 1.5;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--paypal-blue);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    padding: var(--spacing-xs) 0;
    margin-bottom: var(--spacing-lg);
    transition: color 0.2s ease;
}

.btn-back:hover {
    color: var(--paypal-light-blue);
}

/* ============================================
   Cards
   ============================================ */

.payment-summary-card,
.rate-lock-card,
.qr-code-card,
.processing-card,
.success-card {
    background: var(--color-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 18px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.card-description {
    font-size: 14px;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Payment Summary
   ============================================ */

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.summary-label {
    font-size: 14px;
    color: var(--color-medium-gray);
    font-weight: var(--font-weight-medium);
}

.summary-value {
    font-size: 16px;
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-regular);
}

.summary-divider {
    height: 1px;
    background-color: var(--divider-color);
    margin: var(--spacing-md) 0;
}

.summary-row.total .summary-label {
    font-size: 16px;
    color: var(--color-black);
    font-weight: var(--font-weight-bold);
}

.summary-row.total .summary-value {
    font-size: 24px;
    color: var(--paypal-blue);
    font-weight: var(--font-weight-bold);
}

/* ============================================
   Payment Methods
   ============================================ */

.payment-methods {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 24px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    margin-bottom: var(--spacing-lg);
}

.payment-option {
    background: var(--color-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    transition: all 0.2s ease;
    cursor: pointer;
}

.payment-option:hover {
    border-color: var(--paypal-light-blue);
    box-shadow: var(--shadow-sm);
}

.payment-radio {
    display: none;
}

.payment-radio:checked + .payment-label {
    border-color: var(--paypal-blue);
}

.payment-option:has(.payment-radio:checked) {
    border-color: var(--paypal-blue);
    background-color: rgba(0, 112, 186, 0.02);
}

.payment-label {
    display: block;
    padding: var(--spacing-lg);
    cursor: pointer;
}

.payment-option-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.payment-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-light-gray);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--paypal-blue);
    flex-shrink: 0;
}

.payment-info {
    flex: 1;
}

.payment-name {
    font-size: 16px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    margin-bottom: 4px;
}

.payment-description {
    font-size: 14px;
    color: var(--color-medium-gray);
}

.payment-badge {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payment-badge.recommended {
    background-color: var(--paypal-blue);
    color: var(--color-white);
}

.payment-badge.fee {
    background-color: #FFF3CD;
    color: #856404;
}

.payment-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding-left: 62px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    color: var(--color-dark-gray);
}

.benefit-item svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.payment-note {
    padding-left: 62px;
    font-size: 14px;
    color: var(--color-medium-gray);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    width: 100%;
    text-align: center;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--paypal-light-blue);
}

.btn-primary:disabled {
    background-color: var(--color-medium-gray);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-secondary {
    background-color: transparent;
    color: var(--paypal-blue);
    border: 2px solid var(--paypal-blue);
}

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

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Security Notice
   ============================================ */

.security-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    color: var(--color-medium-gray);
    padding: var(--spacing-md);
    text-align: center;
}

.security-notice svg {
    color: var(--color-success);
    flex-shrink: 0;
}

/* ============================================
   Rate Lock Card
   ============================================ */

.rate-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.rate-title {
    font-size: 18px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
}

.rate-timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--paypal-blue);
}

.rate-timer svg {
    color: var(--paypal-blue);
}

.rate-details {
    margin-bottom: var(--spacing-lg);
}

.rate-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.rate-label {
    font-size: 14px;
    color: var(--color-medium-gray);
    font-weight: var(--font-weight-medium);
}

.rate-value {
    font-size: 16px;
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-medium);
}

.rate-divider {
    height: 1px;
    background-color: var(--divider-color);
    margin: var(--spacing-md) 0;
}

.rate-row.total .rate-label {
    font-size: 16px;
    color: var(--color-black);
    font-weight: var(--font-weight-bold);
}

.rate-row.total .rate-value {
    font-size: 20px;
    color: var(--paypal-blue);
    font-weight: var(--font-weight-bold);
}

.rate-notice {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: #FFF3CD;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: #856404;
}

.rate-notice svg {
    color: #856404;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   QR Code Card
   ============================================ */

.qr-code-container {
    display: flex;
    justify-content: center;
    padding: var(--spacing-lg) 0;
}

.qr-code {
    width: 256px;
    height: 256px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-white);
}

.payment-address {
    margin-top: var(--spacing-lg);
}

.address-label {
    display: block;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-sm);
}

.address-input-group {
    display: flex;
    gap: var(--spacing-sm);
}

.address-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--color-dark-gray);
    background-color: var(--color-light-gray);
}

.btn-copy {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--paypal-blue);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: background-color 0.2s ease;
}

.btn-copy:hover {
    background-color: var(--paypal-light-blue);
}

/* ============================================
   Processing Screen
   ============================================ */

.processing-card {
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
}

.processing-spinner {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.spinner {
    animation: rotate 2s linear infinite;
}

.spinner-path {
    stroke: var(--paypal-blue);
    stroke-linecap: round;
    animation: dash 1.5s ease-in-out infinite;
}

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

@keyframes dash {
    0% {
        stroke-dasharray: 1, 150;
        stroke-dashoffset: 0;
    }
    50% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -35;
    }
    100% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -124;
    }
}

.processing-title {
    font-size: 24px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.processing-description {
    font-size: 16px;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-xl);
}

.progress-steps {
    margin: var(--spacing-xl) 0;
    text-align: left;
}

.progress-step {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    opacity: 0.4;
    transition: opacity 0.3s ease;
}

.progress-step.active,
.progress-step.completed {
    opacity: 1;
}

.step-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background-color: var(--color-light-gray);
    border: 2px solid var(--border-color);
    color: var(--color-medium-gray);
}

.progress-step.active .step-icon {
    background-color: var(--paypal-light-blue);
    border-color: var(--paypal-light-blue);
    color: var(--color-white);
}

.progress-step.completed .step-icon {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-white);
}

.step-number {
    font-size: 14px;
    font-weight: var(--font-weight-bold);
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 16px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    margin-bottom: 4px;
}

.step-time {
    font-size: 14px;
    color: var(--color-medium-gray);
}

.processing-progress {
    margin-top: var(--spacing-xl);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--color-light-gray);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background-color: var(--paypal-blue);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 14px;
    color: var(--color-medium-gray);
    text-align: center;
}

/* ============================================
   Success Screen
   ============================================ */

.success-card {
    text-align: center;
}

.success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background-color: var(--color-success);
    border-radius: 50%;
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.success-title {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.success-description {
    font-size: 16px;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-xl);
}

.transaction-details {
    text-align: left;
    padding: var(--spacing-lg);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.detail-label {
    font-size: 14px;
    color: var(--color-medium-gray);
    font-weight: var(--font-weight-medium);
}

.detail-value {
    font-size: 14px;
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-medium);
}

.detail-mono {
    font-family: 'Courier New', monospace;
}

.savings-comparison {
    text-align: left;
    padding: var(--spacing-lg);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.comparison-title {
    font-size: 18px;
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.comparison-table {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row.header {
    background-color: var(--color-light-gray);
    font-weight: var(--font-weight-medium);
    font-size: 14px;
}

.comparison-row.highlight {
    background-color: rgba(40, 167, 69, 0.05);
}

.comparison-cell {
    font-size: 14px;
    color: var(--color-dark-gray);
}

.comparison-cell.success {
    color: var(--color-success);
    font-weight: var(--font-weight-bold);
}

.savings-badge {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-success);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    text-align: center;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    background-color: var(--color-light-gray);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-text {
    font-size: 14px;
    color: var(--color-medium-gray);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-link {
    font-size: 14px;
    color: var(--paypal-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--paypal-light-blue);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 640px) {
    .main-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .page-title {
        font-size: 24px;
    }

    .section-title {
        font-size: 20px;
    }

    .payment-option-header {
        flex-wrap: wrap;
    }

    .payment-badge {
        width: 100%;
        text-align: center;
        margin-top: var(--spacing-xs);
    }

    .payment-benefits {
        padding-left: 0;
    }

    .payment-note {
        padding-left: 0;
    }

    .address-input-group {
        flex-direction: column;
    }

    .comparison-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }

    .comparison-row.header {
        display: none;
    }

    .comparison-cell::before {
        content: attr(data-label);
        font-weight: var(--font-weight-medium);
        margin-right: var(--spacing-xs);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (min-width: 641px) and (max-width: 1024px) {
    .main-content {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}