/* ==========================================================================
   NHS Violence & Aggression Reporting App - Stylesheet
   Compliant with NHS Digital Design Guidelines
   Primary NHS Blue: #005EB8, Dark Blue: #003087, Background: #F0F4F5
   ========================================================================== */

:root {
    --nhs-blue: #005EB8;
    --nhs-dark-blue: #003087;
    --nhs-bright-blue: #0072CE;
    --nhs-black: #212B32;
    --nhs-secondary-text: #4C6272;
    --nhs-white: #FFFFFF;
    --nhs-bg-grey: #F0F4F5;
    --nhs-border-grey: #D8D8D8;
    --nhs-focus-yellow: #FFEB3B;
    --nhs-emergency-red: #D81E05;
    --nhs-warning-orange: #ED8B00;
    --nhs-success-green: #007F3B;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* Reset & Box Sizing */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--nhs-bg-grey);
    color: var(--nhs-black);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

/* Emergency Banner */
.nhs-emergency-banner {
    background-color: var(--nhs-emergency-red);
    color: var(--nhs-white);
    font-size: 0.875rem;
    padding: 0.5rem 0;
    font-weight: 500;
}

.banner-inner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.banner-icon {
    font-size: 1.1rem;
}

/* Header */
.nhs-header {
    background-color: var(--nhs-blue);
    color: var(--nhs-white);
    padding: 1.25rem 0 0 0;
    box-shadow: var(--shadow-sm);
    border-bottom: 4px solid var(--nhs-dark-blue);
}

.header-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .header-container {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
    }
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding-bottom: 0.5rem;
}

.nhs-logo-img {
    height: 44px;
    width: auto;
    flex-shrink: 0;
    border-radius: 4px;
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    object-fit: contain;
}

.header-titles .nhs-site-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--nhs-white);
    letter-spacing: -0.3px;
    line-height: 1.2;
}

.header-titles .nhs-site-subtitle {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 2px;
}

/* Navigation Tabs */
.nhs-nav {
    display: flex;
    gap: 0.25rem;
}

.nav-tab {
    background: rgba(255, 255, 255, 0.12);
    color: var(--nhs-white);
    border: none;
    padding: 0.75rem 1.25rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.nav-tab:hover {
    background: rgba(255, 255, 255, 0.22);
}

.nav-tab.active {
    background-color: var(--nhs-bg-grey);
    color: var(--nhs-blue);
}

#submission-count-badge {
    background-color: var(--nhs-emergency-red);
    color: var(--nhs-white);
    font-size: 0.75rem;
    padding: 2px 7px;
    border-radius: 10px;
    font-weight: 700;
}

/* Main Content Area */
.main-content {
    flex: 1;
    padding-top: 1.5rem;
    padding-bottom: 2.5rem;
}

.view-section {
    display: none;
}

.view-section.active {
    display: block;
    animation: fadeIn 0.25s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card {
    background: var(--nhs-white);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--nhs-border-grey);
}

@media (min-width: 768px) {
    .card {
        padding: 2rem;
    }
}

.card-header {
    border-bottom: 2px solid var(--nhs-bg-grey);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.card-header h2 {
    color: var(--nhs-dark-blue);
    font-size: 1.5rem;
    font-weight: 700;
}

.card-lead {
    color: var(--nhs-secondary-text);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

/* Form Styles */
.form-section {
    border: none;
    padding: 0;
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--nhs-blue);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid #E8EDF0;
    width: 100%;
}

.step-num {
    background-color: var(--nhs-blue);
    color: var(--nhs-white);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
}

.section-desc {
    font-size: 0.875rem;
    color: var(--nhs-secondary-text);
    margin-bottom: 1rem;
}

.info-callout {
    background-color: #E8F1F8;
    border-left: 4px solid var(--nhs-blue);
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--nhs-black);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 600px) {
    .form-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    .form-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.925rem;
    font-weight: 600;
    color: var(--nhs-black);
}

.required {
    color: var(--nhs-emergency-red);
    font-weight: 700;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 0.85rem;
    font-family: inherit;
    font-size: 0.95rem;
    color: #212B32 !important; /* Visible dark NHS text */
    background-color: #FFFFFF !important;
    border: 2px solid var(--nhs-black);
    border-radius: var(--radius-sm);
    min-height: 48px; /* Touch target requirement */
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Browser autofill handling for clean white background */
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-text-fill-color: #212B32 !important;
    box-shadow: 0 0 0 30px #FFFFFF inset !important;
}

/* Custom Searchable Dropdown Styling */
.custom-select-wrapper {
    position: relative;
    width: 100%;
}

.custom-select-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background-color: var(--nhs-white);
    border: 2px solid var(--nhs-blue);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    max-height: 220px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.custom-select-dropdown.show {
    display: block;
    animation: fadeIn 0.15s ease;
}

.select-option {
    padding: 0.75rem 0.85rem;
    font-size: 0.925rem;
    color: var(--nhs-black);
    cursor: pointer;
    border-bottom: 1px solid var(--nhs-bg-grey);
    transition: background-color 0.15s ease;
}

.select-option:last-child {
    border-bottom: none;
}

.select-option:hover, .select-option.active {
    background-color: #E8F1F8;
    color: var(--nhs-blue);
    font-weight: 600;
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23212B32' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.85rem center;
    background-size: 16px;
    padding-right: 2.5rem;
    cursor: pointer;
}

input:focus, select:focus, textarea:focus {
    outline: 3px solid var(--nhs-focus-yellow);
    border-color: var(--nhs-black);
    box-shadow: 0 0 0 1px var(--nhs-black);
}

textarea {
    min-height: 90px;
    resize: vertical;
}

/* Pill Tags (Touch Friendly Quick-Select) */
.pill-tags-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.pill-tag {
    background-color: var(--nhs-bg-grey);
    border: 2px solid var(--nhs-border-grey);
    border-radius: 20px;
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--nhs-black);
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
}

.pill-tag:hover {
    border-color: var(--nhs-blue);
    background-color: #E8F1F8;
}

.pill-tag.selected {
    background-color: var(--nhs-blue);
    color: var(--nhs-white);
    border-color: var(--nhs-dark-blue);
    font-weight: 600;
}

/* Checkbox Grid */
.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-top: 0.35rem;
}

@media (min-width: 600px) {
    .checkbox-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0.85rem;
    background-color: var(--nhs-bg-grey);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    user-select: none;
    min-height: 48px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.checkbox-label:hover {
    background-color: #E6ECEE;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.custom-checkbox {
    width: 22px;
    height: 22px;
    background-color: var(--nhs-white);
    border: 2px solid var(--nhs-black);
    border-radius: 3px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked ~ .custom-checkbox {
    background-color: var(--nhs-blue);
    border-color: var(--nhs-dark-blue);
}

.checkbox-label input[type="checkbox"]:checked ~ .custom-checkbox::after {
    content: "✓";
    color: var(--nhs-white);
    font-weight: 700;
    font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"]:focus ~ .custom-checkbox {
    outline: 3px solid var(--nhs-focus-yellow);
}

/* Buttons */
.form-actions {
    display: flex;
    flex-direction: column-reverse;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--nhs-bg-grey);
}

@media (min-width: 600px) {
    .form-actions {
        flex-direction: row;
        justify-content: flex-end;
    }
}

.btn {
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.75rem 1.35rem;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 48px;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--nhs-success-green);
    color: var(--nhs-white);
    box-shadow: 0 3px 0 #004D24;
}

.btn-primary:hover {
    background-color: #00662F;
}

.btn-secondary {
    background-color: var(--nhs-bg-grey);
    color: var(--nhs-black);
    border-color: var(--nhs-black);
}

.btn-secondary:hover {
    background-color: #D8D8D8;
}

.btn-danger {
    background-color: #FFF0F0;
    color: var(--nhs-emergency-red);
    border-color: var(--nhs-emergency-red);
}

.btn-danger:hover {
    background-color: var(--nhs-emergency-red);
    color: var(--nhs-white);
}

.btn-large {
    font-size: 1.05rem;
    padding: 0.85rem 1.75rem;
}

.btn-sm {
    min-height: 38px;
    padding: 0.4rem 0.85rem;
    font-size: 0.85rem;
}

/* Dashboard Analytics */
.dashboard-header {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-bottom: 2px solid var(--nhs-bg-grey);
    padding-bottom: 1rem;
}

@media (min-width: 768px) {
    .dashboard-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.dashboard-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.kpi-card {
    background-color: var(--nhs-bg-grey);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border-left: 5px solid var(--nhs-blue);
    display: flex;
    flex-direction: column;
}

.kpi-card.kpi-warning { border-left-color: var(--nhs-warning-orange); }
.kpi-card.kpi-danger { border-left-color: var(--nhs-emergency-red); }

.kpi-title {
    font-size: 0.825rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--nhs-secondary-text);
    letter-spacing: 0.5px;
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--nhs-black);
    margin: 0.25rem 0;
}

.kpi-sub {
    font-size: 0.75rem;
    color: var(--nhs-secondary-text);
}

/* Table Responsive */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--nhs-border-grey);
    border-radius: var(--radius-sm);
}

.nhs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    text-align: left;
}

.nhs-table th, .nhs-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--nhs-border-grey);
}

.nhs-table th {
    background-color: #E8EDF0;
    color: var(--nhs-dark-blue);
    font-weight: 700;
}

.nhs-table tr:nth-child(even) {
    background-color: #F9FBFB;
}

.nhs-table tr:hover {
    background-color: #F0F4F5;
}

.text-center { text-align: center; }
.text-muted { color: var(--nhs-secondary-text); }
.margin-top-md { margin-top: 1rem; }
.margin-top-lg { margin-top: 1.75rem; }

/* Modal */
.nhs-modal {
    margin: auto;
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    padding: 0;
}

.nhs-modal::backdrop {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.modal-content {
    padding: 1.5rem;
    background: var(--nhs-white);
    border-radius: var(--radius-md);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.modal-icon {
    font-size: 1.75rem;
}

.modal-header h3 {
    color: var(--nhs-success-green);
    font-size: 1.3rem;
}

.modal-body {
    font-size: 0.95rem;
    line-height: 1.5;
}

.ref-box {
    background-color: var(--nhs-bg-grey);
    border: 2px dashed var(--nhs-blue);
    padding: 0.85rem;
    border-radius: var(--radius-sm);
    text-align: center;
    margin-top: 1rem;
}

.ref-box strong {
    display: block;
    font-size: 1.25rem;
    color: var(--nhs-dark-blue);
    margin-top: 2px;
}

.modal-footer {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

@media (min-width: 500px) {
    .modal-footer {
        flex-direction: row;
        justify-content: flex-end;
    }
}

/* PowerBI Dashboard Charts & Filter Bar Styling */
.filter-bar {
    background-color: #E8F1F8;
    border-left: 4px solid var(--nhs-blue);
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius-sm);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--nhs-dark-blue);
    white-space: nowrap;
}

.filter-group select {
    min-height: 38px;
    padding: 0.35rem 2rem 0.35rem 0.65rem;
    font-size: 0.85rem;
    background-color: var(--nhs-white);
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

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

.chart-card {
    background: var(--nhs-white);
    border: 1px solid var(--nhs-border-grey);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.chart-header {
    border-bottom: 1px solid var(--nhs-bg-grey);
    padding-bottom: 0.6rem;
    margin-bottom: 1rem;
}

.chart-header h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--nhs-dark-blue);
}

.chart-container {
    position: relative;
    height: 240px;
    width: 100%;
}

.table-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem;
}