/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #475569;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background-color: var(--bg-secondary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-brand svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-link.active {
    background-color: var(--accent);
    color: white;
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-secondary);
}

/* Card */
.card {
    background-color: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--border);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: monospace;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-hint {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--accent);
    background-color: rgba(139, 92, 246, 0.1);
}

.upload-zone svg {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.upload-zone p {
    color: var(--text-secondary);
}

/* File Info */
.file-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.file-details {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-details svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.file-name {
    font-weight: 500;
}

.file-size {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Cost Info */
.cost-info {
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.cost-row {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
}

.cost-note {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: capitalize;
}

.status-badge svg {
    width: 16px;
    height: 16px;
}

.status-badge.pending_payment {
    background-color: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.status-badge.processing {
    background-color: rgba(139, 92, 246, 0.2);
    color: var(--accent);
}

.status-badge.complete {
    background-color: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.status-badge.error {
    background-color: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

/* Status Sections */
.status-section {
    text-align: center;
}

.status-header {
    margin-bottom: 2rem;
}

.file-summary {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
}

.summary-item .label {
    color: var(--text-secondary);
}

.summary-item .highlight {
    color: var(--accent);
    font-weight: 600;
}

/* Payment Section */
.payment-section {
    text-align: center;
}

.payment-section h3 {
    margin-bottom: 1rem;
}

.address-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 0.5rem;
    margin: 1rem 0;
}

.address-box code {
    flex: 1;
    font-family: monospace;
    font-size: 0.875rem;
    word-break: break-all;
}

.qr-code {
    margin: 1.5rem 0;
}

.qr-code img {
    max-width: 200px;
    border-radius: 0.5rem;
    background: white;
    padding: 0.5rem;
}

.payment-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.payment-note svg {
    width: 16px;
    height: 16px;
}

/* Progress */
.progress-section {
    max-width: 400px;
    margin: 0 auto;
}

.progress-bar {
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background-color: var(--accent);
    transition: width 0.3s;
}

.progress-text {
    color: var(--text-secondary);
}

/* Complete Section */
.complete-section {
    text-align: center;
}

.success-icon {
    margin-bottom: 1rem;
}

.success-icon svg {
    width: 64px;
    height: 64px;
    color: var(--success);
}

.complete-section h3 {
    margin-bottom: 1.5rem;
}

.result-item {
    margin-bottom: 1.5rem;
}

.result-item .label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.txid-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 0.5rem;
}

.txid-box code {
    flex: 1;
    font-family: monospace;
    font-size: 0.75rem;
    word-break: break-all;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Error Section */
.error-section {
    text-align: center;
}

.error-icon svg {
    width: 64px;
    height: 64px;
    color: var(--error);
    margin-bottom: 1rem;
}

.error-section h3 {
    margin-bottom: 1rem;
}

.error-section .error-message {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Jobs Table */
.jobs-table {
    width: 100%;
    border-collapse: collapse;
}

.jobs-table th,
.jobs-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.jobs-table th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.job-type {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: capitalize;
}

.job-type svg {
    width: 16px;
    height: 16px;
}

.txid {
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading svg {
    width: 32px;
    height: 32px;
}

.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.empty-state,
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-state svg,
.error-state svg {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
}

.error-message {
    padding: 1rem;
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: 0.5rem;
    color: var(--error);
    margin-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
    }

    .container {
        padding: 1rem;
    }

    .jobs-table {
        font-size: 0.875rem;
    }

    .jobs-table th,
    .jobs-table td {
        padding: 0.75rem 0.5rem;
    }

    .action-buttons {
        flex-direction: column;
    }
}