:root {
    --bg-color: #FFFFFF;
    --text-color: #353531;
    --text-light: #666666;
    --primary-gradient-start: #262626;
    --primary-gradient-end: #4C4C4C;
    --accent-color: #001378;
    --border-color: #D6D6D6;
    --font-family: 'Inter', sans-serif;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: var(--border-color);
}

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

body {
    font-family: var(--font-family);
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow-x: hidden;
}

/* Digical Background Orbs */
.background-orb {
    position: fixed;
    border-radius: 50%;
    background: var(--accent-color);
    opacity: 0.5;
    filter: blur(250px);
    z-index: -1;
    pointer-events: none;
}

.orb-left {
    width: 500px;
    height: 500px;
    left: -136px;
    top: -7px;
}

.orb-right {
    width: 500px;
    height: 500px;
    right: -168px;
    top: 434px;
}

.app-container {
    width: 100%;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    z-index: 10;
}

header {
    height: 92px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    margin-bottom: 2rem;
    width: 100%;
}

header .logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

header .logo-container img {
    height: 48px;
    width: auto;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-color);
}

header p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.glass-panel.hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.glass-panel h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.75rem;
}

/* Drop Zone */
.drop-zone {
    height: 150px;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: rgba(0, 19, 120, 0.03);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.drop-zone:hover, .drop-zone.drop-zone--over {
    background: rgba(0, 19, 120, 0.08);
    border-color: var(--accent-color);
}

.drop-zone__prompt {
    font-size: 1.1rem;
    color: var(--accent-color);
    pointer-events: none;
    font-weight: 500;
}

.drop-zone input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

#upload-status {
    margin-top: 1rem;
    font-size: 0.95rem;
    color: var(--text-light);
    text-align: center;
}

/* Controls */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: flex-end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 250px;
}

.control-group label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background: #FFFFFF;
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: 1rem;
    outline: none;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

select:focus {
    border-color: var(--accent-color);
}

/* Buttons */
button {
    font-family: var(--font-family);
    font-weight: 500;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    color: white;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1a1a1a, #333333);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: #FFFFFF;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.btn-secondary:hover {
    background: #f9fafa;
    border-color: #bbbbbb;
}

.vis-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
}

.vis-header h2 {
    border: none;
    margin: 0;
    padding: 0;
}

.chart-container {
    position: relative;
    height: 400px;
    width: 100%;
}

/* Report Builder Blocks */
.report-block {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: box-shadow 0.2s ease;
}

.report-block:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.report-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eee;
}

.report-block-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.report-block-title .block-icon {
    font-size: 1.1rem;
}

.report-block-remove {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid #ddd;
    background: #fff;
    color: #999;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: all 0.2s;
}

.report-block-remove:hover {
    background: #fff0f0;
    color: #ef4444;
    border-color: #ef4444;
}

/* Info Card Key-Value Pairs */
.info-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
}

.info-card-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.info-card-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.info-card-value {
    font-size: 0.95rem;
    color: var(--text-color);
    font-weight: 500;
}

/* Data Table */
.data-table-wrapper {
    overflow-x: auto;
    margin-top: 0.5rem;
}

.data-table-filter {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: var(--font-family);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    outline: none;
}

.data-table-filter:focus {
    border-color: var(--accent-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    background: #f5f5f5;
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

.data-table th:hover {
    background: #eee;
}

.data-table th .sort-indicator {
    margin-left: 0.3rem;
    font-size: 0.7rem;
    color: #999;
}

.data-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid #eee;
    color: var(--text-color);
}

.data-table tbody tr:nth-child(even) {
    background: #fafafa;
}

.data-table tbody tr:hover {
    background: rgba(0, 19, 120, 0.03);
}

/* Conformity badge */
.conformity-pass {
    display: inline-block;
    background: #dcfce7;
    color: #166534;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.conformity-fail {
    display: inline-block;
    background: #fef2f2;
    color: #991b1b;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* =================================================================
   Upload meta: privacy note + example loader
   ================================================================= */
.upload-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.upload-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.45;
    color: var(--text-light);
    max-width: 46ch;
}

.upload-note svg {
    flex-shrink: 0;
    color: var(--accent-color);
}

.btn-example {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    white-space: nowrap;
}

.btn-example svg {
    flex-shrink: 0;
    color: var(--accent-color);
}

.btn-example:disabled {
    opacity: 0.6;
    cursor: default;
    transform: none;
}

/* =================================================================
   Post-export call to action
   ================================================================= */
.cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 19, 120, 0.18);
    background: linear-gradient(135deg, rgba(0, 19, 120, 0.05), rgba(0, 19, 120, 0.02));
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.cta-panel.hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.cta-panel__text {
    flex: 1 1 380px;
    min-width: 0;
}

.cta-panel__text h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 0.6rem;
}

.cta-panel__text p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--text-light);
}

.cta-panel__text strong {
    color: var(--text-color);
    font-weight: 600;
}

.cta-panel__actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
    flex-shrink: 0;
}

.cta-panel__actions .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.cta-panel__link {
    text-align: center;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-color);
    text-decoration: none;
}

.cta-panel__link:hover {
    text-decoration: underline;
}

.cta-panel__hint {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-light);
}

@media (max-width: 640px) {
    .upload-meta { flex-direction: column; align-items: flex-start; }
    .btn-example { width: 100%; justify-content: center; }
    .cta-panel { flex-direction: column; align-items: stretch; padding: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
    .cta-panel, .btn-example, .cta-panel__actions .btn-primary { transition: none; }
}

/* =================================================================
   Header: logo links home, quiet return path on the right
   ================================================================= */
header .logo-container {
    text-decoration: none;
    color: inherit;
}

header .logo-container:hover h1 {
    text-decoration: underline;
}

.header-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    text-decoration: none;
    white-space: nowrap;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.header-link:hover {
    color: var(--accent-color);
    background: rgba(0, 19, 120, 0.05);
}

header a:focus-visible,
.drop-zone:focus-visible,
button:focus-visible,
.cta-panel a:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

@media (max-width: 560px) {
    header {
        height: auto;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }

    header .logo-container img {
        height: 36px;
    }

    header h1 {
        font-size: 1.15rem;
    }

    .header-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.5rem;
    }
}

/* =================================================================
   Interface language switch — same pattern as digical.net so the two
   properties look like one product. Separate from the report language,
   which follows the languages the uploaded certificate declares.
   ================================================================= */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.language-switcher {
    position: relative;
}

.lang-current {
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 6px;
    transition: background 0.2s;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border-color);
    background: #fff;
}

.lang-current:hover {
    background: rgba(0, 0, 0, 0.05);
}

.current-flag {
    display: block;
}

.dropdown-arrow {
    font-size: 10px;
    color: #666;
    transition: transform 0.2s;
}

.language-switcher.open .dropdown-arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: none;
    min-width: 150px;
    z-index: 1100;
    overflow: hidden;
}

/* Invisible bridge so the pointer can travel into the panel */
.lang-dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0;
    width: 100%;
    height: 8px;
    background: transparent;
}

.language-switcher:hover .lang-dropdown,
.language-switcher.open .lang-dropdown {
    display: block;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.2s;
    color: var(--text-color);
    font-size: 14px;
}

.lang-option:hover {
    background: #f5f5f5;
}

.lang-option.active {
    background: #f0f0f0;
    font-weight: 600;
}

.flag-icon {
    display: block;
    flex-shrink: 0;
}

@media (max-width: 560px) {
    .header-actions {
        gap: 0.4rem;
    }

    .lang-current {
        padding: 5px 9px;
    }
}

/* =================================================================
   Collapse/expand toggle
   ================================================================= */

/* line-height:1 is what actually centres the glyph: without it the span
   inherits the browser default (~1.2), so the line box is taller than the
   circle's content area and the "+" sits off-centre despite the flex
   centring. */
.panel-toggle-icon {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1;
    color: var(--accent-color);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    user-select: none;
    transition: background 0.2s ease, border-color 0.2s ease;
}

[id$="-toggle"]:hover .panel-toggle-icon {
    background: rgba(0, 19, 120, 0.06);
    border-color: var(--accent-color);
}