/* =================================
   SALES ORDER PAGE STYLES (ENHANCED UI)
   ================================= */

body {
    background-color: var(--primary-bg);
}

.so-header {
    padding: 1.5rem 0;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: static; /* FIX: Prevents header from being sticky and covering the feedback message */
}
.so-header h1 { margin: 0; font-size: 2rem; font-weight: 700; }
.so-header p { margin: 0.25rem 0 0 0; color: var(--text-secondary); }

#back-to-dash-btn {
    display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none;
    padding: 0.6rem 1.2rem; border: 1px solid var(--border-color); border-radius: var(--border-radius-md);
    background-color: var(--surface-bg); color: var(--text-secondary); font-weight: 600;
    transition: all var(--transition-speed);
}
#back-to-dash-btn:hover {
    border-color: var(--accent-primary); color: var(--accent-primary-dark);
    background-color: var(--accent-primary-light); transform: translateY(-2px); box-shadow: var(--shadow-sm);
}

#sales-order-form { display: flex; flex-direction: column; gap: 1.5rem; }

/* --- NEW: Main Page Layout Grid --- */
.page-layout-grid {
    display: grid;
    grid-template-columns: 1.5fr 2.5fr; /* Smaller left, larger right column */
    gap: 1.5rem;
    align-items: start;
}
.form-details-column { display: flex; flex-direction: column; gap: 1.5rem; }
.form-items-column { min-width: 0; } /* Prevents overflow on flex items */

.form-section.card {
    background-color: var(--surface-bg); padding: 1.5rem; border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color); box-shadow: var(--shadow-sm);
    display: flex; flex-direction: column; height: 100%;
}

.section-title {
    font-size: 1.25rem; font-weight: 600; margin: 0 0 1.25rem 0;
    padding-bottom: 0.75rem; border-bottom: 1px solid var(--border-color);
}

.form-grid-so { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group.span-2 { grid-column: span 2; }
.form-group label { font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); }

.form-group input, .form-group textarea {
    font-size: 1rem; padding: 0.7rem 0.9rem; border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md); transition: all var(--transition-speed);
    font-family: inherit; width: 100%; background-color: var(--primary-bg);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px var(--accent-primary-light); background-color: white;
}
textarea { resize: vertical; }

/* =================================
   --- STREAMLINED: Item Table Styles ---
   ================================= */

.item-table-header {
    display: grid;
    /* UPDATED: Adjusted grid columns for the new layout */
    grid-template-columns: 3fr 1fr 1.2fr 1fr 1.2fr 40px;
    gap: 1rem;
    padding: 0 0.75rem 0.5rem 0.75rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 0.75rem;
    font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase;
}
.item-table-header span:not(:first-child) { text-align: right; }

#item-entry-container { display: flex; flex-direction: column; flex-grow: 1; }

.so-item-row {
    display: grid;
    /* UPDATED: Must match the header's grid definition */
    grid-template-columns: 3fr 1fr 1.2fr 1fr 1.2fr 40px;
    gap: 1rem;
    align-items: center; /* Vertically center content in the row */
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-speed);
    border-bottom: 1px solid var(--border-color);
}
.so-item-row:last-of-type { border-bottom: none; }
.so-item-row:nth-of-type(odd) { background-color: #f7f9fc; }
.so-item-row:hover { background-color: var(--accent-primary-light); }

.so-item-row .form-group { gap: 0.25rem; }
.so-item-row input {
    padding: 0.6rem 0.75rem; font-size: 0.95rem; text-align: right;
    border-color: transparent; background-color: transparent;
}
.so-item-row input:focus { border-color: var(--accent-primary); background-color: white; }
.so-item-row .item-name { text-align: left; }

.so-item-row .item-amount-display {
    text-align: right; font-weight: 600; padding: 0.6rem 0.25rem;
    font-size: 0.95rem; white-space: nowrap; color: var(--text-primary);
}

.remove-item-btn {
    background: none; border: none; font-size: 1.5rem; color: var(--text-tertiary);
    cursor: pointer; transition: all var(--transition-speed); padding: 0; line-height: 1;
    height: 38px; width: 38px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.remove-item-btn:hover { color: var(--danger); background-color: #fee2e2; }

.item-actions { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--border-color); }
.item-actions .secondary-btn { display: inline-flex; align-items: center; gap: 0.5rem; }

/* =================================
   --- Footer and Responsiveness ---
   ================================= */
.form-footer {
    display: flex; justify-content: space-between; align-items: center; padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.8); border-radius: var(--border-radius-lg);
    border-top: 2px solid var(--accent-primary); position: sticky;
    bottom: 1rem; z-index: 100; backdrop-filter: blur(10px);
}

.summary-total { font-size: 1.5rem; font-weight: 600; color: var(--text-primary); }
.summary-total span { font-weight: 500; color: var(--text-secondary); margin-right: 0.5rem; }

#save-so-btn {
    padding: 0.8rem 1.5rem; border: none; border-radius: var(--border-radius-md);
    background-image: linear-gradient(to right, var(--accent-primary-dark) 0%, var(--accent-primary) 51%, var(--accent-primary-dark) 100%);
    background-size: 200% auto; color: white; font-size: 1.1rem; font-weight: 600; cursor: pointer;
    transition: all var(--transition-speed); display: inline-flex; align-items: center; gap: 0.75rem;
}
#save-so-btn:hover { background-position: right center; transform: translateY(-3px); box-shadow: var(--shadow-md); }
#save-so-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

@media (max-width: 1200px) {
    .page-layout-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .form-grid-so { grid-template-columns: 1fr; }
    .form-group.span-2 { grid-column: span 1; }
    .form-footer { flex-direction: column; gap: 1rem; text-align: center; }
    .so-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    
    .form-items-column .card { overflow-x: auto; }
    .item-table-header, .so-item-row { min-width: 650px; }
}