@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-color: #334155;
    --border-color: #cbd5e1;
    --error-color: #ef4444;
    --success-color: #10b981;
    --box-color: rgba(250, 204, 21, 0.2);
    --box-border: #f59e0b;
    --box-active-color: rgba(239, 68, 68, 0.15);
    --box-active-border: #ef4444;
    --table-header-bg: #ffffff;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
}

#app-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* --- Utilities --- */
.hidden { display: none !important; }
.btn {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}
.btn:hover { background-color: var(--primary-hover); }

/* --- Loading Overlay --- */
#loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}
@keyframes spin { 100% { transform: rotate(360deg); } }
.loading-text {
    margin-bottom: 1rem;
    font-weight: 600;
    color: #334155;
}
.cancel-btn {
    min-width: 88px;
    padding: 0.5rem 1rem;
    border: 1px solid #fca5a5;
    border-radius: 6px;
    background: #ffffff;
    color: #b91c1c;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
    transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.cancel-btn:hover {
    background: #fef2f2;
    border-color: #ef4444;
    box-shadow: 0 4px 10px rgba(185, 28, 28, 0.12);
}
.cancel-btn:active {
    transform: translateY(1px);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}
.cancel-btn:focus-visible {
    outline: 3px solid rgba(239, 68, 68, 0.25);
    outline-offset: 2px;
}

/* --- Login View --- */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.login-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}
.login-card h2 { text-align: center; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}
.login-error { color: var(--error-color); margin-bottom: 1rem; text-align: center; font-size: 0.875rem; }
.login-btn { width: 100%; }

/* --- Tasks View --- */
.tasks-container {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}
.tasks-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
.tasks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}
.task-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px 0 rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border-color);
}
.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}
.task-card.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}
.task-card h3 { margin-bottom: 0.5rem; color: var(--primary-color); }
.task-card p { color: #6b7280; font-size: 0.875rem; }

/* --- Order View --- */
.order-container {
    display: flex;
    height: 100vh;
    flex-direction: column;
}
.order-header {
    padding: 1rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.order-header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.order-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}
/* Left Pane: Image Viewer */
.split-left {
    flex: 3; /* Chiếm 60% */
    position: relative;
    background: #e2e8f0;
    padding: 0.75rem; /* Tăng diện tích viewport */
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Prevent flex item from expanding beyond 50% */
    min-width: 0;
}
.panzoom-viewport {
    flex: 1;
    position: relative;
    overflow: hidden; /* Cắt ảnh khi kéo ra khỏi khung này */
    min-width: 0;
    background: #cbd5e1;
    border-radius: 8px;
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.1);
    border: 1px solid #94a3b8;
}
.image-toolbar {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(4px);
    color: #1e293b;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    border: 1px solid rgba(255,255,255,0.4);
}
.image-toolbar:hover {
    background: white;
    color: var(--primary-color);
}
#panzoom-container {
    width: 100%;
    height: 100%;
    transform-origin: 0 0;
    cursor: grab;
}
#panzoom-container:active {
    cursor: grabbing;
}
.images-wrapper {
    position: relative;
    display: flex;
    align-items: flex-start;
}
.page-image {
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background-color: #ffffff !important;
    border: 1px solid #94a3b8;
    mix-blend-mode: normal !important;
    opacity: 1 !important;
}
.bounding-box {
    position: absolute;
    background: var(--box-color);
    border: 1px solid var(--box-border);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    z-index: 5;
    border-radius: 3px;
}
.bounding-box:hover {
    background: rgba(250, 204, 21, 0.4);
    box-shadow: 0 0 8px rgba(250, 204, 21, 0.6);
}
.bounding-box.active {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ff0000;
    border-width: 4px;
    box-shadow: 0 0 24px 8px rgba(255, 0, 0, 0.85);
    z-index: 9999;
}

/* New Modern Layout for Right Pane */
.split-right {
    flex: 2; /* Chiếm 40% */
    background: #f6f8fb;
    border-left: 1px solid #e2e8f0;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Result Card */
.result-card {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
    padding: 1rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid #f1f5f9;
}
.result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}
.result-card.status-ok {
    border-left: 4px solid var(--success-color);
}
.result-card.status-ng {
    border-left: 4px solid var(--error-color);
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #f1f5f9;
}
.card-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.card-title h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}
.card-icon svg {
    width: 16px;
    height: 16px;
    color: #64748b;
}
.card-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.compare-col {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}
.compare-col:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
}
.compare-col.active {
    background: #eff6ff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}
.col-header {
    font-size: 0.65rem;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.col-label {
    font-size: 0.75rem;
    color: #475569;
    margin-bottom: 0.25rem;
}
.col-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: #0f172a;
    word-break: break-word;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}
.badge-ok {
    background-color: #dcfce7;
    color: #166534;
}
.badge-ng {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Stats Container in Header */
.stats-container {
    display: flex;
    gap: 1.5rem;
    background: #f8fafc;
    padding: 0.4rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    border: 1px solid #e2e8f0;
}
.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.stat-ok { color: var(--success-color); }
.stat-ng { color: var(--error-color); }
.stat-item strong { font-size: 0.95rem; font-weight: 700; }

.btn-outline {
    background: transparent;
    border: 1px solid #cbd5e1;
    color: #475569;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
}
.btn-outline:hover {
    background: #f1f5f9;
    color: #0f172a;
    border-color: #94a3b8;
}

/* Upload Section in Order View */
.upload-section {
    padding: 2rem;
    text-align: center;
    width: 100%;
}
.upload-box {
    border: 2px dashed var(--border-color);
    padding: 3rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

/* Footer */
.order-footer {
    padding: 0.5rem 2rem;
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
    font-size: 0.75rem;
    color: #94a3b8;
    text-align: center;
}