/* tools/bill-generator/bill-generator.css */

/* --- Overall Tool Page Layout (consistent with other tools) --- */
.tool-page-main {
    padding: 4rem 0 5rem; 
    background-color: var(--bg-main);
    overflow-x: hidden; 
}

.tool-container {
    max-width: 80vw; /* Consistent with other tools */
    margin: 0 auto;
    padding: 0 var(--space-xl); 
}
@media (min-width: 1600px) { 
    .tool-container {
        max-width: 1280px; 
    }
}


/* --- Tool Header (consistent with other tools) --- */
.tool-header {
    text-align: center;
    margin-top: 2rem; 
    margin-bottom: 4rem; 
}

.tool-icon-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.85rem; 
    margin-bottom: 1.2rem; 
}

.tool-icon {
    font-size: 3.5rem; 
    color: var(--accent-color);
}

.tool-header h1 {
    font-size: clamp(2.5rem, 6vw, 4rem); 
    font-weight: 900; 
    color: var(--text-primary);
    line-height: 1.15;
    margin-bottom: 0;
    letter-spacing: -0.03em; 
}

.tool-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem); 
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 700px;
    margin: 0.8rem auto 0 auto;
}

/* --- Error Message Container (consistent) --- */
.error-message-container {
    background-color: #fef2f2; 
    border: 1px solid #ef4444; 
    color: #b91c1c; 
    padding: 1rem 1.5rem; 
    border-radius: 10px; 
    margin-bottom: 2rem; 
    display: flex;
    align-items: center;
    gap: 0.75rem; 
    font-size: var(--fs-base); 
    box-shadow: 0 4px 10px rgba(0,0,0,0.05); 
    text-align: left; 
}
html[data-theme="dark"] .error-message-container {
    background-color: #3f0f0f;
    border-color: #dc2626;
    color: #ef4444;
}
.error-message-container p { 
    margin: 0;
}


/* --- Main Bill Generator Card (.bill-generator-card) --- */
.bill-generator-card { 
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px; 
    box-shadow: 0 15px 50px rgba(0,0,0,0.1); 
    height: 90vh; /* Taller for complex form */
    display: flex; 
    flex-direction: column; 
    overflow: hidden; 
    margin-bottom: 4rem; 
    max-width: 1000px; /* Slightly wider for bill details */
    margin-left: auto;
    margin-right: auto;
    transition: all 0.3s ease-out; 
}
html[data-theme="dark"] .bill-generator-card {
    box-shadow: 0 15px 50px rgba(0,0,0,0.25);
}

/* Inner Grid for Bill Details/Items vs Summary/Actions Split */
.bill-grid-wrapper {
    flex-grow: 1; 
    display: grid;
    grid-template-columns: 2fr 1fr; /* Bill details wider than summary */
    gap: 0; 
    overflow: hidden; 
}

/* Bill Details Panel (Left) */
.bill-details-panel {
    display: flex;
    flex-direction: column;
    height: 100%; 
    position: relative;
    padding: var(--space-xl) var(--space-xxl) var(--space-xl) var(--space-xl); 
    border-right: 1px solid var(--border-color); 
    background-color: var(--bg-main); 
    overflow-y: auto; /* Scroll for long forms */
}
html[data-theme="dark"] .bill-details-panel {
    border-right-color: var(--border-grid-gray-dark);
    background-color: var(--bg-card); 
}
.bill-details-panel::-webkit-scrollbar { width: 6px; }
.bill-details-panel::-webkit-scrollbar-track { background: var(--bg-highlight); border-radius: 10px; }
.bill-details-panel::-webkit-scrollbar-thumb { background: var(--accent-color); border-radius: 10px; }
.bill-details-panel::-webkit-scrollbar-thumb:hover { background: var(--btn-primary-hover); }

/* Bill Summary Panel (Right) */
.bill-summary-panel {
    display: flex;
    flex-direction: column;
    height: 100%; 
    position: relative;
    padding: var(--space-xl); 
    background-color: var(--bg-card); 
    overflow-y: auto;
}
.bill-summary-panel::-webkit-scrollbar { width: 6px; }
.bill-summary-panel::-webkit-scrollbar-track { background: var(--bg-highlight); border-radius: 10px; }
.bill-summary-panel::-webkit-scrollbar-thumb { background: var(--accent-color); border-radius: 10px; }
.bill-summary-panel::-webkit-scrollbar-thumb:hover { background: var(--btn-primary-hover); }


/* --- Section Titles within Panels/Cards (consistent) --- */
.section-title-within-panel { /* Renamed from _tab to _panel for clarity in this structure */
    font-size: clamp(1.6rem, 3.5vw, 2.2rem); 
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: left; 
}
.bill-details-panel h3.h4, .bill-summary-panel h3.h4 {
    margin-top: 2rem; /* Space for sub-sections */
    margin-bottom: 1rem;
    color: var(--text-primary);
}


/* --- Form/Control Styles (consistent) --- */
.form-group {
    margin-bottom: 1.5rem; 
}
.form-group label {
    font-size: var(--fs-md); 
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.75rem; 
}
.form-control {
    width: 100%;
    padding: 0.85rem 1.2rem; 
    font-size: var(--fs-base); 
    border: 1px solid var(--border-color);
    border-radius: 10px; 
    background-color: var(--bg-main);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(76, 81, 191, 0.2); 
}
html[data-theme="dark"] .form-control {
    background-color: var(--bg-card);
}
html[data-theme="dark"] .form-control:focus {
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.2);
}

.form-text {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    margin-top: 0.6rem; 
    display: block;
    line-height: 1.5;
}

.form-row {
    display: flex;
    gap: var(--space-md);
    margin-bottom: 1.5rem;
}
.form-row .form-group {
    flex: 1; /* Distribute space evenly */
    margin-bottom: 0; /* Handled by parent gap */
}
.form-row .form-group.half-width {
    flex: 0 0 calc(50% - (var(--space-md) / 2)); /* Explicit 50% width with gap */
}


.divider {
    border-top: 1px dashed var(--border-color);
    margin: 2rem 0;
}
html[data-theme="dark"] .divider {
    border-top-color: var(--text-secondary);
}

.form-actions {
    display: flex;
    gap: 1rem; 
    margin-top: 2rem; 
    flex-wrap: wrap;
}
.form-actions .btn {
    flex-grow: 1;
    max-width: 250px; 
    font-size: var(--fs-base); 
    padding: 0.9rem 1.5rem; 
    border-radius: 10px; 
}


/* --- Items Table Layout --- */
.items-table-header {
    display: grid;
    grid-template-columns: 3.5fr 1fr 1.5fr 1.5fr 0.5fr; /* Desc, Qty, Rate, Amount, Action */
    gap: var(--space-xs);
    padding: 0.75rem var(--space-xs);
    background-color: var(--bg-highlight);
    border-radius: 8px 8px 0 0;
    font-weight: 600;
    font-size: var(--fs-sm);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
html[data-theme="dark"] .items-table-header {
    background-color: var(--bg-main);
}
.items-table-header > div {
    text-align: right;
}
.items-table-header .item-col-desc { text-align: left; }
.items-table-header .item-col-action { text-align: center; } /* For trash icon column */


.items-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs); /* Space between rows */
    margin-bottom: 1rem;
}

.item-row {
    display: grid;
    grid-template-columns: 3.5fr 1fr 1.5fr 1.5fr 0.5fr; /* Same grid as header */
    gap: var(--space-xs);
    align-items: center;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--space-xs);
    transition: background-color 0.2s;
}
html[data-theme="dark"] .item-row {
    background-color: var(--bg-card);
}
.item-row:hover {
    background-color: var(--bg-highlight);
}
html[data-theme="dark"] .item-row:hover {
    background-color: color-mix(in srgb, var(--bg-main) 90%, var(--accent-color) 10%);
}

.item-row .form-control {
    padding: 0.5rem 0.8rem;
    font-size: var(--fs-sm);
    height: auto; /* Allow textarea to size naturally */
    min-height: 38px;
}
.item-row input[type="text"].item-desc {
    min-width: 120px;
}
.item-row input[type="number"] {
    text-align: center;
    max-width: 80px; /* Constrain qty/rate inputs */
}
.item-row .item-qty {
    text-align: center;
}
.item-row .item-rate {
    text-align: right;
}

.item-row .item-amount {
    font-weight: 600;
    font-size: var(--fs-sm);
    color: var(--text-primary);
    text-align: right;
    padding: 0.5rem 0.8rem; /* Match input padding */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.item-row .remove-item-btn {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    padding: 0.3rem;
    line-height: 1;
}
.item-row .remove-item-btn:hover {
    color: var(--danger);
}

.add-item-btn {
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
    display: block; /* Center the button */
}

/* --- Summary & Actions --- */
.bill-summary-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Push actions to bottom */
}

.summary-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--fs-base);
    color: var(--text-primary);
    padding: 0.5rem 0;
}
.summary-line span {
    font-weight: 500;
    color: var(--text-secondary);
}
.summary-line strong {
    font-weight: 700;
}
.summary-line.total-highlight {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--accent-color);
    padding: 1rem 0;
    border-top: 1px dashed var(--border-color);
    margin-top: 1rem;
}
html[data-theme="dark"] .summary-line.total-highlight {
    border-top-color: var(--text-secondary);
}

.summary-tax-input {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    margin-bottom: 0;
}
.summary-tax-input label {
    flex-shrink: 0;
    margin-bottom: 0;
    font-size: var(--fs-base);
    font-weight: 500;
    color: var(--text-secondary);
}
.summary-tax-input input {
    width: 80px; /* Small width for percentage input */
    text-align: center;
    flex-shrink: 0;
}
.summary-tax-input .summary-tax-amount {
    flex-grow: 1;
    text-align: right;
    font-weight: 600;
    font-size: var(--fs-base);
    color: var(--text-primary);
}

.bill-summary-panel .form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.bill-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: auto; /* Push to bottom of panel */
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
}
html[data-theme="dark"] .bill-actions {
    border-top-color: var(--border-grid-gray-dark);
}
.bill-actions .btn {
    width: 100%;
    font-size: var(--fs-base);
    padding: 0.9rem 1.5rem;
    border-radius: 10px;
}


/* --- Info, FAQ, CTA sections (consistent) --- */
.info-section, .faq-section, .support-tool-cta { 
    padding: var(--space-xxl); 
    margin-top: 4rem;
    margin-bottom: 4rem;
    border-radius: 20px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.08); 
}

.info-section .column-title, .faq-section .column-title, .support-tool-cta h3 { 
    font-size: var(--fs-xl); 
    font-weight: 700;
    margin-bottom: 1rem; 
    text-align: left;
}
.info-section p, .faq-section p, .support-tool-cta p { 
    font-size: var(--fs-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem; 
    padding: 0 0.5rem; 
}
.info-section p:last-of-type { 
    margin-bottom: 0;
}
.info-section .info-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}
.info-section .info-list li {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
    padding-right: 0.5rem;
}
.info-section .info-list li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.how-to-list { 
    list-style-type: decimal;
    padding-left: 1.5rem;
    margin-top: 1rem;
}
.how-to-list li {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.6;
    padding-right: 0.5rem;
}
.how-to-list li strong {
    color: var(--text-primary);
}


/* Support Tool CTA (consistent) */
.support-tool-cta { 
    text-align: center;
}
.support-tool-cta .tool-icon { 
    font-size: 4rem; 
    color: var(--accent-color);
    margin-bottom: 1.5rem; 
}
.support-tool-cta p {
    max-width: 600px; 
    margin-left: auto;
    margin-right: auto;
}
.support-tool-cta .coffee-btn-small {
    font-size: var(--fs-base); 
    padding: 0.9rem 1.8rem; 
    border-radius: 10px; 
}

/* --- Responsive Adjustments --- */
@media (max-width: 992px) { 
    .tool-page-main { padding: 2.5rem 0 3.5rem; }
    .tool-header { margin-bottom: 2.5rem; }
    .tool-icon { font-size: 2.5rem; }
    .tool-header h1 { font-size: clamp(1.8rem, 4.5vw, 2.5rem); }
    .tool-description { font-size: var(--fs-base); }

    .bill-generator-card { 
        padding: var(--space-lg); 
        height: auto; 
        min-height: 70vh; 
    }
    .bill-grid-wrapper {
        grid-template-columns: 1fr; /* Stack panels on mobile */
        gap: var(--space-xl); 
        padding: var(--space-md); 
    }
    .bill-details-panel {
        padding: 0; 
        border-right: none; 
        border-bottom: 1px solid var(--border-color); 
        padding-bottom: var(--space-lg);
    }
    html[data-theme="dark"] .bill-details-panel { border-bottom-color: var(--border-grid-gray-dark); }
    .bill-summary-panel {
        padding: 0; 
        padding-top: var(--space-lg); /* Add space above summary when stacked */
        border-top: 1px solid var(--border-color); /* Separator when stacked */
    }
    html[data-theme="dark"] .bill-summary-panel { border-top-color: var(--border-grid-gray-dark); }

    .section-title-within-panel {
        font-size: clamp(1.4rem, 3.5vw, 2rem); 
        margin-bottom: 1rem;
    }
    .bill-details-panel h3.h4, .bill-summary-panel h3.h4 {
        margin-top: 1.5rem; 
        margin-bottom: 0.8rem;
        font-size: var(--fs-base);
    }
    .form-group label {
        font-size: var(--fs-sm);
    }
    .form-control {
        font-size: var(--fs-sm);
        padding: 0.7rem 1rem;
    }
    .form-text {
        font-size: var(--fs-xs);
    }
    .form-row {
        gap: var(--space-sm);
    }
    .form-actions {
        margin-top: 1.5rem;
    }
    .form-actions .btn {
        font-size: var(--fs-sm);
        padding: 0.7rem 1.2rem;
    }

    /* Items Table mobile adjustments */
    .items-table-header {
        grid-template-columns: 3fr 1fr 1.5fr 1.5fr 0.5fr; /* Adjust item column widths */
        font-size: var(--fs-xs);
        padding: 0.6rem var(--space-xs);
        overflow-x: auto; /* Allow horizontal scroll if needed */
        white-space: nowrap; /* Keep header items on one line */
        min-width: 400px; /* Minimum width for header to allow scroll */
    }
    .items-table-header > div {
        min-width: 60px; /* Ensure minimum width for header cells */
    }
    .items-table-header .item-col-desc { min-width: 100px; }


    .item-row {
        grid-template-columns: 3fr 1fr 1.5fr 1.5fr 0.5fr; /* Same grid as header */
        font-size: var(--fs-xs);
        padding: var(--space-xs);
        overflow-x: auto; /* Allow horizontal scroll for row content */
        min-width: 400px; /* Match header min-width for consistent scrolling */
    }
    .item-row .form-control {
        font-size: var(--fs-xs);
        padding: 0.4rem 0.6rem;
        min-height: 32px;
    }
    .item-row .item-desc { min-width: 100px; }
    .item-row .item-amount { font-size: var(--fs-xs); }
    .item-row .remove-item-btn { font-size: var(--fs-sm); }
    
    .add-item-btn { max-width: 180px; font-size: var(--fs-sm); }

    /* Summary mobile adjustments */
    .summary-line { font-size: var(--fs-sm); padding: 0.4rem 0; }
    .summary-line.total-highlight { font-size: var(--fs-base); padding: 0.8rem 0; }
    .summary-tax-input label, .summary-tax-input .summary-tax-amount { font-size: var(--fs-sm); }
    .bill-summary-panel .form-group textarea { min-height: 60px; }

    .bill-actions {
        padding-top: var(--space-lg);
    }
    .bill-actions .btn { font-size: var(--fs-sm); padding: 0.7rem 1.2rem; }


    .info-section, .faq-section, .support-tool-cta {
        padding: 2.5rem; 
        margin-top: 3rem;
        margin-bottom: 3rem;
    }
    .info-section .column-title, .faq-section .column-title, .support-tool-cta h3 { font-size: var(--fs-lg); }
    .info-section p, .faq-section p, .support-tool-cta p { font-size: var(--fs-sm); }
    .how-to-list li { font-size: var(--fs-sm); }
    .support-tool-cta .tool-icon { font-size: 3rem; } 
    .support-tool-cta .coffee-btn-small { font-size: var(--fs-sm); }
}

@media (max-width: 576px) { 
    .tool-page-main { padding: 1.5rem 0 2rem; }
    .tool-header { margin-bottom: 1.5rem; }
    .tool-icon { font-size: 2rem; }
    .tool-header h1 { font-size: clamp(1.5rem, 4vw, 2rem); }
    .tool-description { font-size: var(--fs-sm); }

    /* Mobile: Card 100% width, 5px padding left/right */
    .bill-generator-card {
        width: calc(100% - 10px); 
        margin-left: 5px; 
        margin-right: 5px;
        padding: 1rem 10px; 
        border-radius: 16px;
        height: auto; 
        min-height: 60vh; 
        box-sizing: border-box; 
    }
    .bill-grid-wrapper {
        padding: var(--space-md) var(--space-sm); 
    }
    .bill-details-panel, .bill-summary-panel {
        padding: 0; 
    }
    .bill-summary-panel {
        padding-top: var(--space-lg);
    }

    .section-title-within-panel { font-size: 1.3rem; margin-bottom: 0.8rem; }
    .bill-details-panel h3.h4, .bill-summary-panel h3.h4 {
        margin-top: 1rem; 
        margin-bottom: 0.5rem;
        font-size: var(--fs-sm);
    }

    .form-group label { font-size: var(--fs-sm); }
    .form-control { font-size: var(--fs-sm); padding: 0.5rem 0.75rem; }
    .form-text { font-size: 0.7rem; }
    .form-row { flex-direction: column; gap: 1rem; }
    .form-row .form-group.half-width { flex: auto; width: 100%; } /* Stack half-width fields */
    .form-actions { margin-top: 0.8rem; }
    .form-actions .btn { font-size: var(--fs-xs); padding: 0.5rem 0.8rem; }

    /* Items Table mobile adjustments (even tighter) */
    .items-table-header {
        grid-template-columns: 2.5fr 1fr 1.5fr 1.5fr 0.5fr; /* Adjusted further */
        font-size: 0.65rem;
        padding: 0.4rem 0.1rem;
        min-width: 350px; /* Allow scroll, but smaller min-width */
    }
    .items-table-header > div { min-width: 50px; }
    .items-table-header .item-col-desc { min-width: 80px; }

    .item-row {
        grid-template-columns: 2.5fr 1fr 1.5fr 1.5fr 0.5fr;
        font-size: 0.65rem;
        padding: 0.3rem 0.1rem;
        min-width: 350px;
    }
    .item-row .form-control {
        font-size: 0.65rem;
        padding: 0.3rem 0.4rem;
        min-height: 28px;
    }
    .item-row input[type="text"].item-desc { min-width: 80px; }
    .item-row .item-amount { font-size: 0.65rem; }
    .item-row .remove-item-btn { font-size: var(--fs-xs); }

    .add-item-btn { max-width: 150px; font-size: var(--fs-xs); padding: 0.6rem 1rem;}

    .summary-line { font-size: var(--fs-xs); padding: 0.3rem 0; }
    .summary-line.total-highlight { font-size: var(--fs-sm); padding: 0.6rem 0; }
    .summary-tax-input label, .summary-tax-input .summary-tax-amount { font-size: var(--fs-xs); }
    .bill-summary-panel .form-group textarea { min-height: 50px; }

    .bill-actions { padding-top: var(--space-lg); }
    .bill-actions .btn { font-size: var(--fs-xs); padding: 0.6rem 1rem; }
    
    .info-section, .faq-section, .support-tool-cta {
        padding: 1.5rem; 
        margin-top: 1.5rem;
        margin-bottom: 1.5rem;
    }
    .info-section .column-title, .faq-section .column-title, .support-tool-cta h3 { font-size: var(--fs-sm); }
    .info-section p, .faq-section p, .support-tool-cta p { font-size: var(--fs-xs); }
    .how-to-list li { font-size: var(--fs-xs); }
    .support-tool-cta .tool-icon { font-size: 2.2rem; } 
    .support-tool-cta .coffee-btn-small { font-size: var(--fs-xs); }
}