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

html,
body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f1f5f9;
    color: #0f172a;
    min-height: 100vh;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-text-size-adjust: 100%;
}

/* Print Styles */
@media print {
    body {
        background: white;
    }

    body > *:not(.print-view) {
        display: none !important;
    }
    
    .print-view {
        display: block !important;
        position: static;
        width: 100%;
        height: auto;
        background: white;
        visibility: visible !important;
    }
    
    .print-view * {
        visibility: visible !important;
    }
}

.print-view {
    display: none;
}

.print-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1rem;
}

.print-item {
    border: 2px solid black;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 12rem;
    justify-content: center;
    break-inside: avoid;
}

.print-qr {
    background: #f1f5f9;
    width: 6rem;
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #cbd5e1;
    margin-bottom: 0.5rem;
}

.print-id {
    font-family: monospace;
    font-weight: bold;
    font-size: 1.5rem;
    margin: 0.25rem 0;
}

.print-name {
    font-size: 0.875rem;
    text-transform: uppercase;
    font-weight: bold;
    border-top: 1px solid black;
    padding-top: 0.25rem;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Main Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    flex: 0 0 auto;
}

@media (min-width: 768px) {
    .header {
        padding: 1.5rem;
    }
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    background: #2563eb;
    padding: 0.5rem;
    border-radius: 0.5rem;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    cursor: pointer;
}

.logo-text h1 {
    font-size: 1.25rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.025em;
}

@media (min-width: 768px) {
    .logo-text h1 {
        font-size: 1.5rem;
    }
}

.logo-text p {
    font-size: 0.625rem;
    color: #94a3b8;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.header-version {
    margin-top: 0.15rem;
}

#headerVersionLabel {
    color: #64748b;
    font-weight: 700;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .header-right {
        gap: 1rem;
    }
}

.btn-verify-all {
    background: #f97316;
    color: white;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 9999px;
    font-weight: bold;
    font-size: 0.875rem;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
    transition: transform 0.2s;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-verify-all:hover {
        transform: scale(1.05);
    }
}

.btn-icon {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
    min-width: 44px;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-icon:hover {
        color: #2563eb;
    }
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1rem;
    max-width: 80rem;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

@media (min-width: 768px) {
    .main-content {
        padding: 1.5rem;
    }
}

/* Dashboard */
.dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

@media (min-width: 1024px) {
    .dashboard-grid {
        flex-direction: row;
        grid-template-columns: 2fr 1fr;
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 0.688rem;
    font-weight: 900;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.activity-search {
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
    color: #0f172a;
    background: #f8fafc;
    min-height: 30px;
    width: 8rem;
}

.activity-search::placeholder {
    color: #94a3b8;
}

.status-badges {
    display: flex;
    gap: 0.5rem;
}

.badge {
    font-size: 0.625rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: bold;
}

.badge-available {
    background: #dcfce7;
    color: #15803d;
}

.badge-out {
    background: #dbeafe;
    color: #1e40af;
}

.badge-pending {
    background: #fef3c7;
    color: #92400e;
}

/* Items Grid */
.inventory-section {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex: 2;
    min-height: 0;
}

/* QR Scanner Styles */
.qr-scanner-container {
    position: relative;
    background: #1e293b;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border: 3px solid transparent;
    transition: border-color 0.3s ease;
    margin-left: 1rem;
    height: 5rem;
}

.qr-scanner-container.polling {
    animation: borderPulse 1s ease-in-out infinite;
}

.qr-scanner-container.detected {
    border-color: #3b82f6;
    animation: detectedPulse 0.5s ease-in-out;
}

@keyframes borderPulse {
    0%, 100% {
        border-color: #10b981;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }
    50% {
        border-color: #34d399;
        box-shadow: 0 0 12px rgba(16, 185, 129, 0.5);
    }
}

@keyframes detectedPulse {
    0%, 100% {
        border-color: #3b82f6;
        transform: scale(1);
    }
    50% {
        border-color: #60a5fa;
        transform: scale(1.05);
    }
}

#qr-reader {
    width: 120px;
    height: 80px;
    border: none;
}

#qr-reader video,
#qr-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

#qr-video {\n    width: 120px;\n    height: 80px;\n    object-fit: cover;\n    display: block;\n}\n\n#qr-reader__dashboard {
    display: none !important;
}

#qr-reader__dashboard_section {
    display: none !important;
}

#qr-reader__scan_region {
    display: none !important;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    overflow-y: auto;
    padding-right: 0.25rem;
    flex: 1;
    min-height: 0;
}

@media (min-width: 640px) {
    .items-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .items-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.item-card {
    background: white;
    padding: 1.25rem;
    border-radius: 1rem;
    border: 2px solid transparent;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    min-height: 100px;
    height: 100%;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

@media (hover: hover) {
    .item-card:hover {
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .item-card.available:hover {
        border-color: #4ade80;
    }
}

.item-card.pending {
    border-color: #fb923c;
    background: #fff7ed;
    box-shadow: 0 0 0 4px #fed7aa;
}

.item-card.available {
    border-color: #22c55e;
    background: #f0fdf4;
}

.item-card.out {
    opacity: 0.75;
    background: #fef2f2;
    border-color: #fca5a5;
    color: #64748b;
}

.item-id {
    font-family: monospace;
    font-size: 0.625rem;
    font-weight: bold;
    color: #94a3b8;
}

.item-name {
    font-weight: bold;
    font-size: 1.125rem;
    line-height: 1.2;
    margin: 0.5rem 0;
}

.item-status {
    font-size: 0.625rem;
    font-weight: 900;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.item-status.available {
    color: #16a34a;
}

.item-status.out {
    color: #2563eb;
}

.item-status.pending {
    color: #ea580c;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

/* Activity Section */
.activity-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

@media (min-width: 1024px) {
    .activity-section {
        max-height: none;
    }
}

.activity-log {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.log-container {
    flex: 1;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.log-empty {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    font-size: 0.875rem;
    font-style: italic;
}

.log-entry {
    background: #f8fafc;
    border: 1px solid #f1f5f9;
    padding: 0.5rem;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
}

.log-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.log-student {
    font-weight: bold;
    font-size: 0.75rem;
}

.log-time {
    font-size: 0.563rem;
    font-family: monospace;
    color: #94a3b8;
}

.log-action {
    font-size: 0.625rem;
    color: #64748b;
    font-weight: 500;
    text-transform: uppercase;
    margin-top: 0.25rem;
}

/* Status color coding for log actions */
.log-action.status-checkout {
    color: #0284c7; /* Blue for checkouts */
}

.log-action.status-pending {
    color: #ea580c; /* Orange for pending returns */
}

.log-action.status-return {
    color: #16a34a; /* Green for returns */
}

.log-action.status-verified {
    color: #7c3aed; /* Purple for verified returns */
}

.log-item {
    color: #0f172a;
}

/* Teacher Tip */
.teacher-tip {
    background: linear-gradient(135deg, #475569, #0f172a);
    border-radius: 1rem;
    padding: 1rem;
    color: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
    text-align: center;
}

.teacher-tip h3 {
    font-size: 0.625rem;
    font-weight: 900;
    opacity: 0.6;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.teacher-tip p {
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.6;
    font-style: italic;
}

/* Responsive Dashboard Layout */
@media (min-width: 768px) and (max-width: 1023px) and (orientation: portrait) {
    .dashboard-grid {
        flex-direction: column;
    }

    .inventory-section {
        flex: 2 1 0;
        min-height: 0;
    }

    .activity-section {
        flex: 1 1 0;
        min-height: 0;
    }

    .activity-log {
        flex: 1 1 auto;
    }

    .teacher-tip {
        flex: 0 0 auto;
    }
}

@media (min-width: 768px) and (orientation: landscape) {
    .dashboard-grid {
        flex-direction: row;
    }

    .inventory-section {
        flex: 2 1 0;
    }

    .activity-section {
        flex: 1 1 0;
    }
}

@media (min-width: 768px) and (max-width: 1023px) and (orientation: landscape) {
    .items-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 0.75rem;
    }

    .item-card {
        padding: 0.75rem;
        min-height: 80px;
        border-radius: 0.75rem;
    }

    .activity-log {
        padding: 0.75rem;
    }

    .teacher-tip {
        padding: 0.75rem;
    }
}

@media (max-width: 639px) {
    .dashboard-grid {
        gap: 0.75rem;
    }

    .inventory-section {
        flex: 2 1 0;
    }

    .activity-section {
        flex: 1 1 0;
    }

    .teacher-tip {
        display: none;
    }

    .items-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

    .item-card {
        padding: 0.75rem;
        min-height: 72px;
        border-radius: 0.75rem;
    }

    .item-id {
        font-size: 0.563rem;
    }

    .item-name {
        font-size: 0.85rem;
        line-height: 1.1;
        margin: 0.35rem 0;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .item-status {
        font-size: 0.563rem;
    }
}

/* Admin Panel */

#adminView{
    overflow: scroll !important;
}

.admin-header {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.admin-header h2 {
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
}

.admin-header p {
    font-size: 0.75rem;
    color: #94a3b8;
}

.admin-version {
    margin-top: 0.25rem;
    letter-spacing: 0.02em;
}

#adminVersionLabel {
    color: #475569;
    font-weight: 700;
}

.admin-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-print-all {
    background: #1e293b;
    color: white;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: bold;
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.2s;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-print-all:hover {
        background: #475569;
    }
}

/* Admin Grid */
.admin-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .admin-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.admin-section {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.admin-section h3 {
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.admin-section h3 i {
    color: #2563eb;
}

.admin-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.input-small {
    width: 4rem;
    padding: 0.75rem 0.5rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    min-height: 44px;
}

.input-medium {
    width: 6rem;
    padding: 0.75rem 0.5rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    transition: border-color 0.2s, background-color 0.2s;
    min-height: 44px;
}

.input-medium.pin-valid {
    border-color: #10b981;
    background-color: #f0fdf4;
}

.input-medium.pin-duplicate {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.input-flex {
    flex: 1;
    padding: 0.75rem 0.5rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    min-height: 44px;
}

.btn-add, .btn-add-student {
    background: #2563eb;
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 0.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    min-width: 44px;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-add:hover {
        background: #1e40af;
    }
}

.btn-add-student {
    background: #16a34a;
}

@media (hover: hover) {
    .btn-add-student:hover {
        background: #15803d;
    }
}

.admin-list {
    max-height: 24rem;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.admin-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    background: #f8fafc;
    border: 1px solid #f1f5f9;
    border-radius: 0.25rem;
    margin-bottom: 0.5rem;
}

@media (hover: hover) {
    .admin-item:hover .admin-item-actions {
        opacity: 1;
    }
}

/* Always show actions on touch devices */
@media (hover: none) {
    .admin-item-actions {
        opacity: 1 !important;
    }
}

.admin-item-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-item-id {
    font-family: monospace;
    font-size: 0.625rem;
    font-weight: bold;
    background: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid #e2e8f0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.admin-item-name {
    font-size: 0.875rem;
    font-weight: 500;
}

.admin-item-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.btn-icon-small {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
    min-width: 44px;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-icon-small.print:hover {
        color: #2563eb;
    }

    .btn-icon-small.delete:hover {
        color: #ef4444;
    }
}

.student-pin {
    color: #cbd5e1;
    font-family: monospace;
    font-size: 0.625rem;
    background: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid #e2e8f0;
}

/* Settings Section */
.settings-section {
    grid-column: 1 / -1;
    margin-top: 1rem;
}

.settings-group {
    margin-bottom: 1.5rem;
}

.settings-group:last-child {
    margin-bottom: 0;
}

.settings-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.settings-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
}

.settings-label i {
    color: #2563eb;
}

.settings-label.danger i {
    color: #ef4444;
}

.settings-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.btn-change-pin {
    background: #2563eb;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-change-pin:hover {
        background: #1e40af;
    }
}

.danger-zone {
    border: 2px solid #fecaca;
    background: #fef2f2;
    padding: 1rem;
    border-radius: 0.5rem;
}

.danger-warning {
    color: #991b1b;
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0.5rem 0;
    padding: 0.75rem;
    background: white;
    border-radius: 0.25rem;
    border-left: 3px solid #ef4444;
}

.btn-delete-classroom {
    background: #ef4444;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: background 0.2s;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-delete-classroom:hover {
        background: #dc2626;
    }
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 50;
}

@media (min-width: 768px) {
    .modal-overlay {
        padding: 1.5rem;
    }
}

.modal {
    background: white;
    width: 100%;
    max-width: 28rem;
    border-radius: 2rem;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: modalZoom 0.2s ease-out;
}

@media (min-width: 768px) {
    .modal {
        border-radius: 2.5rem;
        padding: 2.5rem;
    }
}

@keyframes modalZoom {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-icon {
    margin: 0 auto 2rem;
    width: 5rem;
    height: 5rem;
    background: #f8fafc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0f172a;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.modal-icon.teacher {
    color: #f97316;
}

.modal-icon.admin {
    color: #64748b;
}

.modal-content h2 {
    font-size: 1.875rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.025em;
    font-style: italic;
}

.modal-content p {
    color: #94a3b8;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.modal-input-section {
    margin-top: 2rem;
}

.one-time-inputs {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.one-time-pin {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    letter-spacing: 0.35rem;
    padding: 0.75rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 1rem;
    outline: none;
    transition: border-color 0.2s;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    -webkit-tap-highlight-color: transparent;
}

.one-time-pin:focus {
    border-color: #2563eb;
}

.pin-input {
    width: 100%;
    text-align: center;
    font-size: 2.5rem;
    letter-spacing: 0.5rem;
    padding: 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 1.5rem;
    outline: none;
    transition: border-color 0.2s;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    -webkit-tap-highlight-color: transparent;
}

@media (min-width: 768px) {
    .pin-input {
        font-size: 3.75rem;
        letter-spacing: 1rem;
    }
}

.pin-input:focus {
    border-color: #2563eb;
}

.pin-input.pin-valid {
    border-color: #10b981 !important;
    background-color: #f0fdf4;
}

.pin-input.pin-duplicate {
    border-color: #ef4444 !important;
    background-color: #fef2f2;
}

.error-message {
    color: #ef4444;
    font-weight: 900;
    font-size: 0.875rem;
    text-transform: uppercase;
    margin: 1.5rem 0;
    animation: bounce 0.5s ease-in-out;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.info-message {
    color: #2563eb;
    font-size: 0.875rem;
    margin: 1rem 0;
    padding: 0.75rem;
    background-color: #eff6ff;
    border-radius: 0.5rem;
    border-left: 4px solid #2563eb;
}

.bulk-import-textarea {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 1rem;
    outline: none;
    transition: border-color 0.2s;
    font-family: monospace;
    font-size: 0.875rem;
    resize: vertical;
    -webkit-tap-highlight-color: transparent;
}

.bulk-import-textarea:focus {
    border-color: #2563eb;
}

.bulk-import-modal {
    max-width: 600px;
}

.btn-submit {
    width: 100%;
    padding: 1.5rem;
    background: #0f172a;
    color: white;
    border: none;
    border-radius: 1.5rem;
    font-weight: 900;
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    margin-top: 1.5rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
    transition: all 0.2s;
}

.btn-submit:hover {
    background: #2563eb;
}

.btn-submit:active {
    transform: scale(0.95);
}

.btn-cancel {
    color: #94a3b8;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.625rem;
    margin-top: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.2s;
}

.btn-cancel:hover {
    color: #0f172a;
}

/* Mobile Number Pad */
.mobile-number-pad {
    margin-top: 1.5rem;
}

.number-pad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.num-btn {
    aspect-ratio: 1;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 1rem;
    font-size: 2rem;
    font-weight: 700;
    color: #0f172a;
    cursor: pointer;
    transition: all 0.15s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}

.num-btn:active {
    transform: scale(0.95);
    background: #2563eb;
    border-color: #2563eb;
    color: white;
}

.num-btn-clear,
.num-btn-backspace {
    background: #fee2e2;
    border-color: #fecaca;
    color: #dc2626;
}

.num-btn-clear:active,
.num-btn-backspace:active {
    background: #dc2626;
    border-color: #dc2626;
    color: white;
}

.num-btn svg {
    width: 24px;
    height: 24px;
}

/* Mobile optimizations for number pad */
@media (max-width: 767px) {
    .modal.mobile-mode {
        padding: 1.5rem;
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .modal.mobile-mode .modal-icon {
        display: none;
    }
    
    .modal.mobile-mode .pin-input {
        font-size: 2rem;
        padding: 0.75rem;
        margin-bottom: 0;
    }
    
    .modal.mobile-mode .btn-submit {
        display: none;
    }
    
    .number-pad-grid {
        gap: 0.5rem;
    }
    
    .num-btn {
        min-height: 70px;
        font-size: 1.75rem;
    }
}

/* Utility Classes */
.view {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    padding: 1.5rem;
}

.login-container {
    background: white;
    width: 100%;
    max-width: 28rem;
    border-radius: 2rem;
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .logo-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

.login-header p {
    font-size: 0.875rem;
    color: #94a3b8;
}

.login-form h2 {
    font-size: 1.25rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    color: #0f172a;
}

.input-group {
    margin-bottom: 1rem;
}

.login-input {
    width: 100%;
    padding: 1.25rem;
    border: 2px solid #e2e8f0;
    border-radius: 0.75rem;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
    min-height: 56px;
}

.login-input:focus {
    border-color: #2563eb;
}

/* PIN validation states */
.pin-valid {
    border-color: #10b981 !important;
    background-color: #f0fdf4;
}

.pin-duplicate {
    border-color: #ef4444 !important;
    background-color: #fef2f2;
}

.btn-login {
    width: 100%;
    padding: 1.25rem;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 0.75rem;
    font-weight: 900;
    font-size: 0.875rem;
    text-transform: uppercase;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: background 0.2s;
    min-height: 56px;
}

@media (hover: hover) {
    .btn-submit:hover {
        background: #1e40af;
    }
}

.login-divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: #cbd5e1;
    font-size: 0.875rem;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}

.login-divider span {
    padding: 0 1rem;
}

.btn-create-account {
    width: 100%;
    padding: 1.25rem;
    background: white;
    color: #2563eb;
    border: 2px solid #2563eb;
    border-radius: 0.75rem;
    font-weight: 900;
    font-size: 1rem;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 56px;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
    .btn-create-account:hover {
        background: #eff6ff;
    }
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: #64748b;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    cursor: pointer;
}

.checkbox-label span {
    user-select: none;
}