/* === CSS RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-card-hover: #22263a;
    --bg-input: #151820;
    --border: #2a2e3d;
    --border-focus: #6366f1;
    --text: #e4e4e7;
    --text-muted: #8b8d98;
    --text-dim: #6b6d78;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --primary-bg: rgba(99, 102, 241, 0.1);
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Noto Sans Bengali', sans-serif;
    --mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --transition: 0.2s ease;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === HEADER === */
.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
}

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

.logo-icon {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

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

.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-link.active {
    color: var(--primary);
    background: var(--primary-bg);
}

/* === HERO / INPUT === */
.hero {
    padding: 40px 0 24px;
}

.input-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.card-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 4px;
}

.card-actions {
    display: flex;
    gap: 8px;
}

.textarea-wrapper {
    position: relative;
    padding: 0;
}

#rawInput {
    width: 100%;
    min-height: 280px;
    padding: 20px 24px;
    background: var(--bg-input);
    border: none;
    color: var(--text);
    font-family: var(--mono);
    font-size: 0.875rem;
    line-height: 1.7;
    resize: vertical;
    outline: none;
}

#rawInput::placeholder {
    color: var(--text-dim);
}

#rawInput:focus {
    box-shadow: inset 0 0 0 2px var(--border-focus);
}

.char-count {
    position: absolute;
    bottom: 12px;
    right: 16px;
    font-size: 0.75rem;
    color: var(--text-dim);
    pointer-events: none;
}

.btn-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

.input-stats {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    font-family: var(--font);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

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

.btn-success:hover {
    background: #16a34a;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-card-hover);
    color: var(--text);
    border-color: var(--text-dim);
}

.btn-lg {
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
}

.btn-sm {
    padding: 4px 12px;
    font-size: 0.75rem;
}

/* === SETTINGS BAR === */
.settings-inline {
    padding: 0 0 24px;
}

.settings-bar {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 200px;
}

.setting-item label {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.setting-item input[type="number"] {
    width: 70px;
    padding: 6px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.875rem;
    outline: none;
    font-family: var(--mono);
}

.setting-item input[type="number"]:focus {
    border-color: var(--border-focus);
}

.setting-item input[type="text"] {
    flex: 1;
    padding: 6px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.75rem;
    outline: none;
    font-family: var(--mono);
    min-width: 180px;
}

.setting-item input[type="text"]:focus {
    border-color: var(--border-focus);
}

.setting-item span {
    color: var(--text-dim);
    font-size: 0.875rem;
}

/* === SUMMARY CARDS === */
.results-section {
    padding: 0 0 40px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.summary-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.summary-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.summary-card .number {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--mono);
    line-height: 1;
    margin-bottom: 6px;
}

.summary-card .label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.summary-card.total .number { color: var(--info); }
.summary-card.high .number { color: var(--success); }
.summary-card.medium .number { color: var(--warning); }
.summary-card.low .number { color: var(--danger); }
.summary-card.flagged .number { color: #f97316; }
.summary-card.cod .number { color: #a78bfa; }

/* === ACTION BAR === */
.action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
}

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

.action-left h3 {
    font-size: 1rem;
    font-weight: 600;
}

.badge {
    background: var(--primary-bg);
    color: var(--primary);
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.action-right {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* === FILTER TABS === */
.filter-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
}

.tab:hover {
    background: var(--bg-card-hover);
    color: var(--text);
}

.tab.active {
    background: var(--primary-bg);
    color: var(--primary);
    border-color: var(--primary);
}

/* === ORDER CARDS === */
.orders-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.order-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.order-card:hover {
    border-color: var(--primary);
}

.order-card.flagged {
    border-color: #f97316;
    border-left: 4px solid #f97316;
}

.order-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.01);
}

.order-card-header .order-num {
    font-weight: 700;
    font-size: 0.9rem;
}

.confidence-badge {
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.confidence-badge.high {
    background: var(--success-bg);
    color: var(--success);
}

.confidence-badge.medium {
    background: var(--warning-bg);
    color: var(--warning);
}

.confidence-badge.low {
    background: var(--danger-bg);
    color: var(--danger);
}

.flag-badge {
    background: #f973161a;
    color: #f97316;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
}

.order-card-body {
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.field-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    font-weight: 600;
}

.field-value {
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 500;
    word-break: break-word;
}

.field-value.null {
    color: var(--danger);
    font-style: italic;
    font-weight: 400;
}

.field-value.cod {
    font-size: 1.25rem;
    font-weight: 700;
    color: #a78bfa;
    font-family: var(--mono);
}

.field-value.cod::before {
    content: '৳ ';
    font-size: 0.875rem;
    color: var(--text-muted);
}

.missing-fields {
    padding: 10px 20px;
    background: var(--danger-bg);
    border-top: 1px solid #ef444430;
    font-size: 0.8rem;
    color: var(--danger);
}

.missing-fields strong {
    margin-right: 6px;
}

.order-card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* === JSON SECTION === */
.json-section {
    padding: 0 0 40px;
}

.json-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.json-card .card-header {
    padding: 14px 20px;
}

.json-card .card-header h3 {
    font-size: 0.9rem;
}

.json-output {
    padding: 20px;
    background: var(--bg-input);
    color: var(--success);
    font-family: var(--mono);
    font-size: 0.75rem;
    line-height: 1.6;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* === TOAST === */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-card);
    border: 1px solid var(--success);
    color: var(--success);
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* === FOOTER === */
.footer {
    text-align: center;
    padding: 32px 0;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.8rem;
}

.footer-quote {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 8px;
    font-style: italic;
}

.footer-developer {
    font-size: 0.9rem;
    color: var(--text);
    margin-bottom: 4px;
}

.footer-developer strong {
    color: var(--primary-hover);
    font-weight: 600;
}

.footer-sub {
    color: var(--text-dim);
    font-size: 0.7rem;
    margin-top: 4px;
}

/* === LOADING ANIMATION === */
.processing {
    pointer-events: none;
    opacity: 0.6;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.processing .btn-primary {
    animation: pulse 1s infinite;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 12px;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .btn-row {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-row .btn {
        width: 100%;
        justify-content: center;
    }
    
    .settings-bar {
        flex-direction: column;
    }
    
    .action-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .action-right {
        width: 100%;
    }
    
    .action-right .btn {
        flex: 1;
        justify-content: center;
        font-size: 0.75rem;
        padding: 6px 10px;
    }
    
    .order-card-body {
        grid-template-columns: 1fr;
    }
    
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-input);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}

/* === SELECTION === */
::selection {
    background: var(--primary);
    color: white;
}

/* === MODAL === */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

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

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-card-hover);
    color: var(--text);
}

.modal-body {
    padding: 24px;
}

.config-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-dim);
    animation: pulse 2s infinite;
}

.config-status.connected .status-dot {
    background: var(--success);
}

.config-status.disconnected .status-dot {
    background: var(--danger);
}

.config-status.checking .status-dot {
    background: var(--warning);
}

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

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.875rem;
    font-family: var(--mono);
    outline: none;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-group small {
    display: block;
    margin-top: 6px;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.info-box {
    background: var(--info-bg);
    border: 1px solid var(--info);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 20px;
}

.info-box h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--info);
    margin-bottom: 8px;
}

.info-box p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 8px;
}

.info-box p:last-child {
    margin-bottom: 0;
}

.info-link a {
    color: var(--info);
    text-decoration: none;
    font-weight: 500;
}

.info-link a:hover {
    text-decoration: underline;
}

.balance-display {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 20px;
}

.balance-display h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.balance-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
    font-family: var(--mono);
}

.steadfast-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-input);
    border: 1px solid var(--border);
}

.steadfast-status.connected {
    background: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
}

.steadfast-status.disconnected {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.order-card-footer .btn-submit {
    background: var(--success);
    color: white;
}

.order-card-footer .btn-submit:hover {
    background: #16a34a;
}

.order-card-footer .btn-submit:disabled {
    background: var(--text-dim);
    cursor: not-allowed;
}

.submit-progress {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 16px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

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

.progress-text {
    font-size: 0.8rem;
    color: var(--text-muted);
}