/**
 * Student Performance Dashboard - Styles
 * Modern, clean design without external frameworks
 */

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Flexoki Base Colors - Complete Spectrum */
    --flexoki-black: #100F0F;
    --flexoki-paper: #FFFCF0;
    --flexoki-950: #1C1B1A;
    --flexoki-900: #282726;
    --flexoki-850: #343331;
    --flexoki-800: #403E3C;
    --flexoki-700: #575653;
    --flexoki-600: #6F6E69;
    --flexoki-500: #878580;
    --flexoki-400: #9F9D96;
    --flexoki-300: #B7B5AC;
    --flexoki-200: #CECDC3;
    --flexoki-150: #DAD8CE;
    --flexoki-100: #E6E4D9;
    --flexoki-50: #F2F0E5;

    /* Flexoki Red */
    --flexoki-red-50: #FFE1D5;
    --flexoki-red-100: #FFCABB;
    --flexoki-red-200: #F89A8A;
    --flexoki-red-300: #E8705F;
    --flexoki-red: #D14D41;        /* 400 - primary */
    --flexoki-red-600: #AF3029;
    --flexoki-red-700: #942822;

    /* Flexoki Orange */
    --flexoki-orange-50: #FFE7CE;
    --flexoki-orange-100: #FED3AF;
    --flexoki-orange-200: #F9AE77;
    --flexoki-orange-300: #EC8B49;
    --flexoki-orange: #DA702C;     /* 400 - primary */
    --flexoki-orange-600: #BC5215;
    --flexoki-orange-700: #9D4310;

    /* Flexoki Yellow */
    --flexoki-yellow-50: #FAEEC6;
    --flexoki-yellow-100: #F6E2A0;
    --flexoki-yellow-200: #ECCB60;
    --flexoki-yellow-300: #DFB431;
    --flexoki-yellow: #D0A215;     /* 400 - primary */
    --flexoki-yellow-600: #AD8301;
    --flexoki-yellow-700: #8E6B01;

    /* Flexoki Green */
    --flexoki-green-50: #EDEECF;
    --flexoki-green-100: #DDE2B2;
    --flexoki-green-200: #BEC97E;
    --flexoki-green-300: #A0AF54;
    --flexoki-green: #879A39;      /* 400 - primary */
    --flexoki-green-600: #66800B;
    --flexoki-green-700: #536907;

    /* Flexoki Cyan */
    --flexoki-cyan-50: #DDF1E4;
    --flexoki-cyan-100: #BFE8D9;
    --flexoki-cyan-200: #87D3C3;
    --flexoki-cyan-300: #5ABDAC;
    --flexoki-cyan: #3AA99F;       /* 400 - primary */
    --flexoki-cyan-600: #24837B;
    --flexoki-cyan-700: #1C6C66;

    /* Flexoki Blue */
    --flexoki-blue-50: #E1ECEB;
    --flexoki-blue-100: #C6DDE8;
    --flexoki-blue-200: #92BFDB;
    --flexoki-blue-300: #66A0C8;
    --flexoki-blue: #4385BE;       /* 400 - primary */
    --flexoki-blue-600: #205EA6;
    --flexoki-blue-700: #1A4F8C;

    /* Flexoki Purple */
    --flexoki-purple-50: #F0EAEC;
    --flexoki-purple-100: #E2D9E9;
    --flexoki-purple-200: #C4B9E0;
    --flexoki-purple-300: #A699D0;
    --flexoki-purple: #8B7EC8;     /* 400 - primary */
    --flexoki-purple-600: #5E409D;
    --flexoki-purple-700: #4F3685;

    /* Flexoki Magenta */
    --flexoki-magenta-50: #FEE4E5;
    --flexoki-magenta-100: #FCCFDA;
    --flexoki-magenta-200: #F4A4C2;
    --flexoki-magenta-300: #E47DA8;
    --flexoki-magenta: #CE5D97;    /* 400 - primary */
    --flexoki-magenta-600: #A02F6F;
    --flexoki-magenta-700: #87285E;

    /* Semantic Color Mappings */
    --color-primary: var(--flexoki-blue);
    --color-primary-dark: var(--flexoki-blue-600);
    --color-success: var(--flexoki-green);
    --color-warning: var(--flexoki-orange);
    --color-error: var(--flexoki-red);
    --color-info: var(--flexoki-cyan);

    /* Text Colors */
    --color-text: var(--flexoki-black);
    --color-text-light: var(--flexoki-600);
    --color-text-muted: var(--flexoki-500);

    /* Background Colors */
    --color-bg: var(--flexoki-paper);
    --color-bg-secondary: var(--flexoki-50);
    --color-bg-tertiary: var(--flexoki-100);
    --color-border: var(--flexoki-200);

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

    /* Shadows - Subtle Flexoki-based */
    --shadow-sm: 0 1px 2px 0 rgba(28, 27, 26, 0.05);
    --shadow: 0 1px 3px 0 rgba(28, 27, 26, 0.1), 0 1px 2px 0 rgba(28, 27, 26, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(28, 27, 26, 0.1), 0 4px 6px -2px rgba(28, 27, 26, 0.05);
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    text-align: center;
    margin-top: 6rem;
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: none;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--flexoki-950);
    margin-bottom: 0.5rem;
}

.last-updated {
    font-size: 0.875rem;
    color: var(--color-text-light);
    opacity: 0.85;
    margin-top: 0.5rem;
}

main {
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    margin-bottom: 2rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

/* Sections */
section {
    margin-bottom: 3rem;
}

section:last-child {
    margin-bottom: 0;
}

.intro {
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 2.5rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text);
}

/* Input section */
.input-section {
    background: white;
    padding: 2.5rem 3rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    max-width: 800px;
    margin: 3rem auto;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

label {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

input[type="text"] {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: 0.375rem;
    transition: border-color 0.2s;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(67, 133, 190, 0.1);
}

.btn-primary {
    display: inline-block;
    padding: 0.875rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background-color: var(--color-primary);
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-primary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 133, 190, 0.4);
}

.button-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 1.25rem;
}

.privacy-hint {
    margin: 0;
    font-size: 1rem;
    color: var(--color-text-light);
    text-align: right;
}

.privacy-hint small {
    display: block;
}

.btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    background-color: white;
    border: 2px solid var(--color-border);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, transform 0.1s;
}

.btn-secondary:hover {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-text-light);
}

.btn-secondary:active {
    transform: translateY(1px);
}

.btn-secondary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(28, 27, 26, 0.1);
}

.btn-tertiary {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--flexoki-600);
    background-color: transparent;
    border: 1px solid var(--flexoki-200);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.btn-tertiary:hover {
    background-color: var(--flexoki-50);
    border-color: var(--flexoki-500);
    color: var(--color-text);
}

.btn-tertiary:active {
    transform: translateY(1px);
}

.btn-tertiary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(28, 27, 26, 0.05);
}

/* Help section */
.help {
    max-width: 800px;
    margin: 4rem auto 3rem;
}

.help details {
    border: none;
    background: transparent;
    padding: 0;
}

.help summary {
    display: block;
    cursor: pointer;
    font-weight: 400;
    font-size: 0.875rem;
    color: var(--color-text-light);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--flexoki-150);
    text-align: center;
    user-select: none;
}

.help summary:hover {
    color: var(--color-primary);
}

.help summary .icon {
    display: none;
}

.help-content {
    padding: 2rem 0 1rem;
    border-top: none;
}

.help-content h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.help-content h4:first-child {
    margin-top: 0;
}

.help-content p {
    font-size: 0.875rem;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.help-content ul {
    list-style-position: inside;
    padding-left: 1rem;
}

/* Icons */
.icon {
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

/* Error and loading states */
.error {
    padding: 1rem;
    background: var(--flexoki-red-50);
    border: 1px solid var(--flexoki-red-200);
    border-radius: 0.25rem;
    color: var(--flexoki-red-700);
    margin-bottom: 1rem;
}

.error ul {
    margin-top: 0.5rem;
    margin-left: 1.5rem;
}

/* Warning message box (not for icons - use specific selector to avoid conflicts) */
.warning:not(.insight-icon):not(.insight-card):not(.progression-card):not(.progression-icon) {
    padding: 1rem;
    background: var(--flexoki-yellow-50);
    border: 1px solid var(--flexoki-yellow-200);
    border-radius: 0.25rem;
    color: var(--flexoki-yellow-700);
    margin-bottom: 1rem;
}

.warning code {
    background: rgba(0, 0, 0, 0.1);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.875em;
}

.loading {
    text-align: center;
    padding: 2rem;
}

.spinner {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 1rem;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Dashboard results */
.dashboard {
    max-width: 1000px;
    margin: 0 auto;
}

/* Overall statistics */
.overall-stats {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--flexoki-50);
    border: 1px solid var(--flexoki-200);
    border-radius: 0.5rem;
    color: var(--flexoki-black);
}

.overall-stats h3 {
    color: var(--flexoki-black);
    border-bottom-color: var(--flexoki-200);
    margin-top: 0;
}

.stats-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--flexoki-100);
    border: 1px solid var(--flexoki-200);
    padding: 1.5rem;
    border-radius: 0.375rem;
    text-align: center;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--flexoki-600);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-percentage {
    font-size: 1.125rem;
    font-weight: 600;
}

/* New hierarchy classes for improved statistics layout */
.stat-primary {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.stat-secondary-label {
    font-size: 0.875rem;
    color: var(--flexoki-600);
    margin-bottom: 0.1rem; /* Tight spacing with value below (Gestalt proximity) */
    margin-top: 0; /* Gap provided by stat-meta margin-bottom */
}

.stat-secondary-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--flexoki-950);
    margin-bottom: 0.25rem;
}

.stat-delta {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    margin-top: 0.25rem;
}

.stat-delta.positive {
    color: var(--flexoki-green);
}

.stat-delta.negative {
    color: var(--flexoki-red);
}

.stat-meta {
    font-size: 0.8125rem;
    color: var(--flexoki-600);
    margin-top: 0; /* Tight with stat-primary above */
    margin-bottom: 1rem; /* Larger gap before Gruppe section (Gestalt proximity) */
}

.stat-percentage.excellent {
    color: var(--flexoki-green);
}

.stat-percentage.good {
    color: var(--flexoki-yellow);
}

.stat-percentage.moderate {
    color: var(--flexoki-orange);
}

.stat-percentage.needs-improvement {
    color: var(--flexoki-red);
}

.positive {
    color: var(--flexoki-green);
}

.negative {
    color: var(--flexoki-red);
}

/* Guidance box */
.guidance-box {
    margin: 2rem 0;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.guidance-box.priority-10,
.guidance-box.priority-9,
.guidance-box.priority-8 {
    /* High priority (warnings) - red theme */
    background: var(--flexoki-red-50);
    border-color: var(--flexoki-red-200);
}

.guidance-box.priority-7,
.guidance-box.priority-6 {
    /* Medium priority (info) - orange theme */
    background: var(--flexoki-orange-50);
    border-color: var(--flexoki-orange-200);
}

.guidance-box.priority-5,
.guidance-box.priority-4,
.guidance-box.priority-3,
.guidance-box.priority-2 {
    /* Good performance - green theme */
    background: var(--flexoki-green-50);
    border-color: var(--flexoki-green-200);
}

.guidance-box.priority-1,
.guidance-box.priority-0 {
    /* Neutral/informational - gray theme */
    background: var(--flexoki-100);
    border-color: var(--flexoki-300);
}

.guidance-header h3 {
    margin: 0 0 1rem 0;
    padding: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.guidance-content {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
}

.guidance-content strong {
    font-weight: 600;
}

.guidance-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Cohort assessment specific styles */
.cohort-assessment {
    margin: 2rem 0;
}

.cohort-assessment h3 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
}

.cohort-assessment .guidance-content ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.cohort-assessment .guidance-content li {
    margin: 0.5rem 0;
}

.guidance-content a:hover {
    color: var(--color-primary-dark);
}

/* Session summary cards */
.session-summary-card {
    background: var(--color-bg-secondary);
    padding: 1.25rem;
    margin-bottom: 1rem;
    border-radius: 0.375rem;
    border: 1px solid var(--color-border);
}

.session-summary-card h4 {
    margin: 0 0 0.75rem 0;
    color: var(--color-text);
    font-size: 1.125rem;
}

.session-meta {
    font-weight: normal;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.session-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.9375rem;
}

.session-stats .stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.session-stats .delta {
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    background: var(--flexoki-100);
}

.back-link {
    margin-bottom: 1.5rem;
}

.back-link a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.back-link a:hover {
    text-decoration: underline;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
}

h4 {
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
}

.sessions-summary ul {
    list-style-position: inside;
}

.sessions-summary li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.sessions-summary li:last-child {
    border-bottom: none;
}

.session-results {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--color-bg-secondary);
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
}

.submission-result {
    margin-top: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 0.375rem;
}

.results-table {
    width: 100%;
    margin-top: 1rem;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.results-table th {
    text-align: left;
    padding: 0.75rem;
    background: var(--color-bg-secondary);
    font-weight: 600;
    border-bottom: 2px solid var(--color-border);
}

.results-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.results-table tr:last-child td {
    border-bottom: none;
}

.results-table .correct {
    color: var(--color-success);
    font-weight: 600;
}

.results-table .incorrect {
    color: var(--color-error);
    font-weight: 600;
}

.results-table .unclear {
    color: var(--color-text-light);
}

/* Footer */
footer {
    text-align: center;
    margin-top: 4rem;
    padding: 2rem 1rem;
    font-size: 0.8125rem;
}

footer nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

footer a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--color-primary);
}

.separator {
    color: var(--color-text-light);
    opacity: 0.4;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1rem 0.75rem;
    }

    header {
        margin-top: 3rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    main {
        padding: 0;
    }

    .input-section {
        padding: 2rem 1.5rem;
    }

    .button-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .privacy-hint {
        text-align: center;
    }

    section {
        margin-bottom: 2rem;
    }

    .help {
        margin: 3rem auto 2rem;
    }

    .results-table {
        font-size: 0.875rem;
    }

    .results-table th,
    .results-table td {
        padding: 0.5rem;
    }
}

/* Submission selector */
.submission-selector {
    max-width: 900px;
    margin: 0 auto;
}

.selector-header {
    margin-bottom: 2rem;
}

.selector-header h2 {
    color: var(--color-text);
    margin-bottom: 1rem;
}

.info-box {
    background: var(--flexoki-blue-50);
    padding: 1rem;
    border-radius: 0.25rem;
    margin: 1rem 0;
    border: 1px solid var(--flexoki-blue-200);
}

.info-box code {
    background: rgba(0, 0, 0, 0.1);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: var(--font-mono);
}

.submissions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.submission-option {
    background: var(--color-bg);
    border: 3px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.submission-option:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.submission-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--color-border);
}

.submission-header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--color-text);
}

.submission-score {
    font-size: 1.125rem;
    font-weight: 700;
}

.submission-details {
    margin: 1rem 0;
}

.submission-table {
    width: 100%;
    border-collapse: collapse;
}

.submission-table th {
    background: var(--color-bg-secondary);
    padding: 0.5rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    border: 1px solid var(--color-border);
}

.submission-table td {
    padding: 0.75rem;
    text-align: center;
    font-size: 1.25rem;
    border: 1px solid var(--color-border);
}

.submission-table td.correct {
    background: var(--flexoki-green-50);
    color: var(--color-success);
}

.submission-table td.incorrect {
    background: var(--flexoki-red-50);
    color: var(--color-error);
}

.submission-table td.unclear {
    background: var(--flexoki-100);
    color: var(--color-text-light);
}

.btn-select {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background-color: var(--color-primary);
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-select:hover {
    background-color: var(--color-primary-dark);
}

.selector-footer {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--color-border);
    text-align: center;
}

.selector-footer .help-text {
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

/* Trajectory analysis */
.trajectory-analysis {
    margin: 2rem 0;
}

.trajectory-analysis h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.trajectory-warning {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--flexoki-red-50);
    border: 1px solid var(--flexoki-red-200);
    border-radius: 0.5rem;
}

.trajectory-warning .icon {
    flex-shrink: 0;
    color: var(--flexoki-red);
    margin-top: 0.125rem;
}

.trajectory-warning p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Skills analysis */
.skills-analysis {
    margin: 2rem 0;
}

.skills-analysis h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.chart-container {
    position: relative;
    height: 400px;
    margin-bottom: 2rem;
    background: white;
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
}

.chart-explanation {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    background: var(--color-bg-secondary);
    border-radius: 0.25rem;
    font-size: 0.875rem;
    color: var(--color-text);
}

.skill-guidance-cards {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
}

.skill-card {
    background: white;
    padding: 1.25rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    transition: box-shadow 0.2s;
}

.skill-card:hover {
    box-shadow: var(--shadow);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.skill-header h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

.skill-stats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.student-stat {
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.student-stat.positive {
    color: var(--flexoki-green-600);
    background: var(--flexoki-green-50);
}

.student-stat.negative {
    color: var(--flexoki-red-600);
    background: var(--flexoki-red-50);
}

.vs {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.cohort-stat {
    color: var(--color-text-light);
}

.skill-guidance {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text);
}

.skill-guidance strong {
    font-weight: 600;
}

.skill-guidance a {
    color: var(--color-primary);
    text-decoration: underline;
}

.skill-guidance a:hover {
    color: var(--color-primary-dark);
}

/* Skill pattern color coding */
.skill-card.pattern-mastered {
    background: var(--flexoki-green-50);
    border-color: var(--flexoki-green-200);
}

.skill-card.pattern-improving {
    background: var(--flexoki-50);
    border-color: var(--flexoki-200);
}

.skill-card.pattern-struggling_persistent,
.skill-card.pattern-struggling_new,
.skill-card.pattern-declining {
    background: var(--flexoki-red-50);
    border-color: var(--flexoki-red-200);
}

/* Tint hr lines (border-top) within skill cards */
.skill-card.pattern-mastered .skill-guidance {
    border-top-color: var(--flexoki-green-200);
}

.skill-card.pattern-improving .skill-guidance {
    border-top-color: var(--flexoki-200);
}

.skill-card.pattern-struggling_persistent .skill-guidance,
.skill-card.pattern-struggling_new .skill-guidance,
.skill-card.pattern-declining .skill-guidance {
    border-top-color: var(--flexoki-red-200);
}

.skill-card.pattern-mastered .skill-questions {
    border-top-color: var(--flexoki-green-200);
}

.skill-card.pattern-improving .skill-questions {
    border-top-color: var(--flexoki-200);
}

.skill-card.pattern-struggling_persistent .skill-questions,
.skill-card.pattern-struggling_new .skill-questions,
.skill-card.pattern-declining .skill-questions {
    border-top-color: var(--flexoki-red-200);
}

/* Darken h4 headings for better contrast in tinted boxes */
.skill-card.pattern-mastered h4 {
    color: var(--flexoki-green-700);
}

.skill-card.pattern-improving h4 {
    color: var(--flexoki-950);
}

.skill-card.pattern-struggling_persistent h4,
.skill-card.pattern-struggling_new h4,
.skill-card.pattern-declining h4 {
    color: var(--flexoki-red-700);
}

/* Tint disclosure summary (Aufgaben zu diesem Skill) */
.skill-card.pattern-mastered .skill-questions summary {
    background: var(--flexoki-green-100);
}

.skill-card.pattern-improving .skill-questions summary {
    background: var(--flexoki-100);
}

.skill-card.pattern-struggling_persistent .skill-questions summary,
.skill-card.pattern-struggling_new .skill-questions summary,
.skill-card.pattern-declining .skill-questions summary {
    background: var(--flexoki-red-100);
}

.skill-card.pattern-mastered .skill-questions summary:hover {
    background: var(--flexoki-green-200);
}

.skill-card.pattern-improving .skill-questions summary:hover {
    background: var(--flexoki-150);
}

.skill-card.pattern-struggling_persistent .skill-questions summary:hover,
.skill-card.pattern-struggling_new .skill-questions summary:hover,
.skill-card.pattern-declining .skill-questions summary:hover {
    background: var(--flexoki-red-200);
}

/* Skill questions expandable section */
.skill-questions {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
}

.skill-questions summary {
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    padding: 0.5rem;
    border-radius: 0.25rem;
    user-select: none;
    transition: background-color 0.2s;
}

.skill-questions summary:hover {
    background: var(--flexoki-100);
}

.skill-questions summary::-webkit-details-marker {
    color: var(--color-primary);
}

.question-list {
    list-style: none;
    margin: 0.75rem 0 0 0;
    padding: 0.75rem;
    background: white;
    border-radius: 0.25rem;
}

.question-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
}

.question-item.correct {
    background: var(--flexoki-green-50);
}

.question-item.incorrect {
    background: var(--flexoki-red-50);
}

.question-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.75rem;
}

.question-item.correct .question-icon {
    background: var(--flexoki-green);
    color: white;
}

.question-item.incorrect .question-icon {
    background: var(--flexoki-red);
    color: white;
}

.question-name {
    flex: 1;
    font-weight: 500;
    color: var(--color-text);
}

.question-meta {
    font-size: 0.75rem;
    color: var(--color-text-light);
    white-space: nowrap;
}

/* Dashboard actions (back link + export/clear buttons) */
.dashboard-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-buttons button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.action-buttons .icon {
    width: 16px;
    height: 16px;
}

/* Additional insights section */
.additional-insights {
    margin: 2rem 0;
}

.additional-insights h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.insights-grid {
    display: grid;
    gap: 1.5rem; /* Increased from 1rem for better breathing room */
    grid-template-columns: repeat(2, 1fr);
}

.insight-card {
    position: relative; /* For absolute positioning of background icon */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 2px solid; /* ONLY a solid border all around, NO border-left */
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
    background: white; /* Clean white background */
}

.insight-card:hover {
    box-shadow: var(--shadow);
}

.insight-card.wide {
    grid-column: 1 / -1; /* Span all columns */
}

.insight-card.positive {
    border-color: var(--flexoki-green);
    background: var(--flexoki-green-50);
}

.insight-card.warning {
    border-color: var(--flexoki-red);
    background: var(--flexoki-red-50);
}

.insight-card.info {
    border-color: var(--flexoki-blue);
    background: var(--flexoki-blue-50);
}

.insight-card.recommendation {
    border-color: var(--flexoki-purple);
    background: var(--flexoki-purple-50);
}

.insight-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Minimal insight icon CSS - rebuilt systematically */
.insight-icon {
    color: inherit; /* Inherit color from parent */
}

.insight-icon.positive {
    color: var(--flexoki-green);
}

.insight-icon.warning {
    color: var(--flexoki-red);
}

.insight-icon.info {
    color: var(--flexoki-blue);
}

.insight-icon.recommendation {
    color: var(--flexoki-purple);
}

/* Background watermark icon styling */
.insight-background-icon {
    position: absolute;
    right: 1.5rem;
    top: 50%; /* Vertically centered */
    transform: translateY(-50%); /* Perfect vertical centering */
    opacity: 0.12; /* Reduced base opacity for better text legibility */
    pointer-events: none; /* Don't interfere with clicking */
    color: inherit; /* Inherit from card type */
    /* Opacity gradient: more pronounced fade from left to right */
    -webkit-mask-image: linear-gradient(to right, rgba(0,0,0,0.8), rgba(0,0,0,0.2));
    mask-image: linear-gradient(to right, rgba(0,0,0,0.8), rgba(0,0,0,0.2));
}

.insight-background-icon.positive {
    color: var(--flexoki-green);
}

.insight-background-icon.warning {
    color: var(--flexoki-red);
}

.insight-background-icon.info {
    color: var(--flexoki-blue);
}

.insight-background-icon.recommendation {
    color: var(--flexoki-purple);
}

.insight-title {
    margin: 0;
    font-size: 1.25rem; /* Increased from 1.125rem (18px → 20px) */
    font-weight: 700; /* Bolder, increased from 600 */
    color: var(--color-text);
}

.insight-body {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text);
}

.insight-body a {
    color: var(--color-primary);
    text-decoration: underline;
}

.insight-body a:hover {
    color: var(--color-primary-dark);
}

.insight-body strong {
    font-weight: 600;
    color: var(--color-text);
}

/* Responsive: single column on mobile */
@media (max-width: 768px) {
    .insights-grid {
        grid-template-columns: 1fr;
    }

    .insight-card.wide {
        grid-column: 1;
    }
}

/* ==================== Progression Section ==================== */
.progression-section {
    margin-top: 2rem;
}

.progression-section h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.section-description {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.progression-card {
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.progression-card.positive {
    background: var(--flexoki-green-50);
    border-color: var(--flexoki-green);
}

/* Ensure good contrast for text in positive progression cards */
.progression-card.positive .progression-title,
.progression-card.positive .progression-feedback,
.progression-card.positive .timeline-session,
.progression-card.positive .timeline-question,
.progression-card.positive .timeline-cohort {
    color: var(--flexoki-green-700);
}

.progression-card.positive .progression-icon {
    color: var(--flexoki-green-600);
}

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

.progression-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.progression-icon.warning {
    color: var(--flexoki-red);
}

.progression-icon.info {
    color: var(--flexoki-blue);
}

.progression-icon.danger {
    color: var(--flexoki-red-600);
}

.progression-icon.positive {
    color: var(--flexoki-green);
}

.progression-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.progression-timeline {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.timeline-point {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 140px;
    padding: 0.75rem;
    background: var(--color-bg-light);
    border-radius: 6px;
    text-align: center;
}

.timeline-session {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-text);
}

.timeline-result {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Minimal result icon CSS - rebuilt systematically */
.result-icon {
    color: inherit; /* Inherit color from parent */
}

.result-icon.correct {
    color: var(--flexoki-green);
}

.result-icon.incorrect {
    color: var(--flexoki-red);
}

.result-icon.skipped {
    color: var(--flexoki-500);
}

.timeline-question {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.timeline-cohort {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    padding: 0.2rem 0.5rem;
    background: white;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.progression-feedback p {
    margin: 0.5rem 0;
}

.progression-feedback p:first-child {
    margin-top: 0;
}

.progression-feedback p:last-child {
    margin-bottom: 0;
}

.progression-feedback strong {
    font-weight: 600;
}

.progression-feedback a {
    color: var(--color-primary);
    text-decoration: underline;
}

.progression-feedback a:hover {
    color: var(--color-primary-hover);
}

/* Responsive progression section */
@media (max-width: 768px) {
    .timeline-point {
        min-width: 100%;
    }
}

/* Print styles */
@media print {
    body {
        background: white;
    }

    .container {
        max-width: none;
    }

    .back-link,
    .input-section,
    footer {
        display: none;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Distribution bars */
.distribution-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.distribution-label {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

.distribution-bar {
    display: flex;
    height: 40px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.dist-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: opacity 0.2s;
}

.dist-segment:hover {
    opacity: 0.8;
    cursor: help;
}

.dist-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.dist-none {
    background-color: var(--flexoki-red-600);
}

.dist-low {
    background-color: var(--flexoki-orange);
}

.dist-medium {
    background-color: var(--flexoki-yellow);
}

.dist-good {
    background-color: var(--flexoki-green);
}

.dist-excellent {
    background-color: var(--flexoki-green-600);
}

.distribution-legend {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    display: inline-block;
}

/* No guidance placeholder */
.skill-guidance.no-guidance {
    font-style: italic;
    color: var(--flexoki-600);
    font-size: 0.9rem;
    padding: 0.75rem;
    border: 1px dashed var(--flexoki-300);
    border-radius: 4px;
    background-color: var(--flexoki-50);
}

/* Group skills section */
.group-skills-section {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.group-skills-section h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.group-skills-note {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.group-skills-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.group-skills-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.group-skills-row strong {
    margin-right: 0.5rem;
    color: var(--color-text);
    min-width: 200px;
}

.skill-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

.skill-badge.skill-good {
    background-color: var(--flexoki-green-100);
    color: var(--flexoki-green-700);
    border: 1px solid var(--flexoki-green-200);
}

.skill-badge.skill-bad {
    background-color: var(--flexoki-red-100);
    color: var(--flexoki-red-700);
    border: 1px solid var(--flexoki-red-200);
}

/* LocalStorage info section */
.localstorage-info {
    background: var(--flexoki-50);
    border: 1px solid var(--flexoki-200);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 3rem;
    margin-bottom: 2rem;
}

.localstorage-info h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.localstorage-info p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.localstorage-info p:last-of-type {
    margin-bottom: 1.25rem;
}

.localstorage-info strong {
    color: var(--color-text);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .group-skills-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .group-skills-row strong {
        min-width: auto;
    }

    .distribution-legend {
        font-size: 0.75rem;
    }

    .dist-label {
        font-size: 0.75rem;
    }
}

/* Focus visible (keyboard navigation) */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}