/* style.css - Industrial Tech Theme v5.0 (with Loader) */

/* ... (all existing styles from :root to .kpi-icon-wrapper remain the same) ... */

:root {
    --bg-dark: #1a202c;       /* Very dark blue, almost black */
    --bg-panel: #2d3748;      /* Dark slate gray for panels/cards */
    --border-color: #4a5568;  /* Muted gray for borders */
    --text-primary: #e2e8f0;   /* Light gray for primary text */
    --text-secondary: #a0aec0; /* Softer gray for secondary text */
    --accent-blue: #4299e1;    /* Vibrant blue for accents, charts, links */
    --accent-green: #48bb78;   /* Green for success/positive trends */
    --accent-yellow: #f6e05e;  /* Yellow for warnings */
    --accent-red: #f56565;     /* Red for critical/danger */
}

body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--bg-dark); 
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
}

.dashboard-card {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
    border-color: var(--accent-blue);
}

.header, .modal-content {
    background-color: var(--bg-panel);
    border-color: var(--border-color);
}

.modal-backdrop {
    background-color: rgba(26, 32, 44, 0.8);
    backdrop-filter: blur(5px);
    transition: opacity 0.3s ease;
}

.modal-content {
    transition: all 0.3s ease;
    animation: scale-up 0.3s ease forwards;
}

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

.btn { padding: 0.5rem 1rem; border-radius: 6px; font-weight: 600; transition: all 0.2s ease; text-align: center; border: 1px solid transparent; cursor: pointer; }
.btn:active { transform: scale(0.97); }
.btn-primary { background-color: var(--accent-blue); color: var(--bg-dark); }
.btn-primary:hover { background-color: #63b3ed; }
.btn-secondary { background-color: transparent; border-color: var(--accent-blue); color: var(--accent-blue); }
.btn-secondary:hover { background-color: rgba(66, 153, 225, 0.1); }
.btn-danger { background-color: transparent; border-color: var(--accent-red); color: var(--accent-red); }
.btn-danger:hover { background-color: rgba(245, 101, 101, 0.1); }

.input-field { background-color: var(--bg-dark); border: 1px solid var(--border-color); color: var(--text-primary); border-radius: 6px; padding: 0.5rem 0.75rem; }
.input-field:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 2px rgba(66, 153, 225, 0.5); }

#toast-container { position: fixed; top: 20px; right: 20px; z-index: 1000; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 12px 16px; border-radius: 6px; color: var(--bg-dark); font-weight: 500; font-size: 14px; display: flex; align-items: center; gap: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.15); opacity: 0; transform: translateX(100%); transition: all 0.3s ease-in-out; }
.toast.show { opacity: 1; transform: translateX(0); }
.toast-success { background-color: var(--accent-green); }
.toast-error { background-color: var(--accent-red); }
.toast-info { background-color: var(--accent-blue); color: var(--text-primary); }

.icon-btn { color: var(--text-secondary); cursor: pointer; transition: color 0.2s; }
.icon-btn:hover { color: var(--accent-blue); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-blue); }

.kpi-icon-wrapper { width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.po-item-row { display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; align-items: center; padding: 0.75rem 0.5rem; border-bottom: 1px solid var(--border-color); }
.po-item-row:last-child { border-bottom: none; }


/* NEW: Loader Styles */
.loader-spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}