:root {
    --color-bg-card: #FFFFFF;
    --color-text-primary: rgb(4, 22, 60);
    --color-text-secondary: #374151;
    --color-text-muted: #4b5563;
    --color-text-faint: #6B7280;
    --color-border-light: #E5E7EB;
    --color-border-medium: #D1D5DB;
    --color-brand: rgb(4, 22, 60);
    --color-brand-hover: rgb(4, 22, 60);
    --color-brand-light-bg: #DBEAFE;
    --color-brand-light-text: #1D4ED8;
    --color-red: #DC2626;
    --color-red-light-bg: #FEE2E2;
    --color-red-border: #F87171;
    --color-red-text: #B91C1C;
    --color-green: #16A34A;
    --color-green-hover: #15803D;
    --color-gray: #4B5563;
    --color-gray-hover: #374151;
    --color-gray-light-bg: #F3F4F6;
    --color-gray-light-bg-hover: #E5E7EB;
    --color-gray-light-text: #374151;
    --color-s1: #34D399;
    --color-s2: #FBBF24;
    --color-s3: #F87171;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(14 50 200 / 25%);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    color: var(--color-text-secondary);
}

* {
    box-sizing: border-box;
}

span.logo-text {
    position: absolute;
    left: 1.25rem;
    font-weight: 900;
    color: rgb(255 255 255);
    font-family: Copperplate;
}

h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 0.5rem 0;
    font-family: Copperplate;
}

h2 {
    font-size: 2.25rem;
    font-weight: 900;
    color: var(--color-text-primary);
    text-align: center;
    margin: 0 0 1rem 0;
    font-familY: "Copperplate", "Copperplate Gothic Light", fantasy;
}

h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 1rem 0;
    padding-bottom: 0.5rem;
    font-familY: "Copperplate", "Copperplate Gothic Light", fantasy;
}

h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0 0 1rem 0;
}

p {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin: 0 0 1rem 0;
    line-height: 1.5;
}

p.help-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: -0.5rem;
    margin-bottom: 1rem;
}

code {
    background-color: #ffffff33;
    padding: 0.25rem;
    border-radius: 0.25rem;
    font-family: monospace;
}

hr {
    border: 0;
    border-top: 1px solid var(--color-border-light);
    margin: 2rem 0;
}

.hidden {
    display: none !important;
}

.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;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 800;
    color: rgb(0 49 153);
    margin-bottom: 0.7rem;
}

label span {
    font-size: 0.75rem;
    color: #1f2937;
}

input[type="file"],
input[type="number"],
input[type="password"],
input[type="text"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #0000001f;
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    color: var(--color-text-faint);
    font-family: inherit;
    background: rgb(4 22 60 / 11%);
}

input[type="file"] {
    padding: 0.5rem;
}

input[type="file"]::file-selector-button {
    color: var(--color-text-secondary);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border-medium);
    cursor: pointer;
    transition: background-color 0.2s;
    margin-right: 0.5rem;
}

input[type="file"]::file-selector-button:hover {
    background-color: #E5E7EB;
}

input[type="range"] {
    width: 100%;
    height: 0.5rem;
    background-color: var(--color-border-light);
    border-radius: var(--border-radius-lg);
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}
input[type="range"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1rem;
  height: 1rem;
  background: var(--color-brand);
  border-radius: 50%;
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 1rem;
  height: 1rem;
  background: var(--color-brand);
  border-radius: 50%;
  cursor: pointer;
}


button {
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-lg);
    border: none;
    cursor: pointer;
    transition: background-color 0.1s, color 0.3s;
    height: 100%;
    font-family: "Lucida Console", "Courier New", monospace;
}
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.checkbox-group {
    display: flex;
    align-items: center;
}
.checkbox-group input[type="checkbox"] {
    height: 1rem;
    width: 1rem;
    color: var(--color-brand);
    border: 1px solid var(--color-border-medium);
    border-radius: 0.25rem;
}

.checkbox-group label {
    margin-left: 0.5rem;
    margin-bottom: 0;
    font-size: 0.875rem;
    color: var(--color-text-primary);
}

.radio-group {
    display: flex;
    align-items: center;
}
.radio-group input[type="radio"] {
    height: 1rem;
    width: 1rem;
    color: var(--color-brand);
    border: 1px solid var(--color-border-medium);
}
.radio-group label {
    margin-left: 0.5rem;
    margin-bottom: 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
}


#view-home {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

#view-home {
    background-image: url('background.png');
    background-size: 50vw auto;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    position: relative;
}

.hero-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.12), rgba(0,0,0,0.12));
    pointer-events: none;
}

@media (max-width: 640px) {
    #view-home {
        background-size: cover;
        background-position: center top;
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-title {
    position: absolute;
    top: 1.5rem;
    margin: 0;color: rgb(4, 22, 60);
    font-size: clamp(6.5rem, 5vw, 5rem);
    font-weight: 800;line-height: 1;
    pointer-events: auto;
    text-align: center;width: 100%;
}

.hero-subtitle {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 1.5rem;
    margin: 0;
    color: rgba(51, 122, 221, 0.95);
    font-size: clamp(3rem, 2.5vw, 1.5rem);
    font-weight: 800;
    pointer-events: auto;
}

@media (max-width: 420px) {
    .hero-title {
        left: 1rem;
        top: 1rem;
        font-size: 2.25rem;
    }
    .hero-subtitle {
        font-size: 1rem;
        bottom: 0.75rem;
    }
}

#home-container {
    position: fixed;
    bottom: 2rem;
    max-width: calc(100% - 3rem);
    max-height: 60vh;
    overflow: auto;
    background-color: #c6c6c68f;
    padding: 0.8rem;
    border-radius: 0.8rem;
    box-shadow: var(--shadow-2xl);
    border: 1px solid #00000017;
    z-index: 1000;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

@media (max-width: 640px) {
    #home-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        width: auto;
        max-width: none;
        max-height: 40vh;
        padding: 0.875rem;
        border-radius: var(--border-radius-lg);
    }
}

#home-container header {
    margin-bottom: 1.5rem;
    text-align: center;
}
#home-container header p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
}

.form-group {
    display: flex;
    gap: 1.5rem;
}

#errorMessage,
#fileUploadErrorMessage,
#mappingErrorMessage {
    margin-top: 1.5rem;
    background-color: var(--color-red-light-bg);
    border: 1px solid var(--color-red-border);
    color: var(--color-red-text);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-lg);
}
#mappingErrorMessage {
    margin-top: 0;
    margin-bottom: 1rem;
}
#fileUploadErrorMessage {
    margin-top: 0;
    margin-bottom: 1rem;
}


.form-actions {
    text-align: center;
}

#analyzeButtonHome {
    width: 100%;
    background-color: rgb(4 22 60 / 68%);
    color: white;
}
#analyzeButtonHome:hover {
    background-color: var(--color-brand-hover);
}

@media (min-width: 640px) {
    #analyzeButtonHome {
        width: auto;
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

#loadingSpinner,
#mappingLoadingSpinner {
    margin-top: 2rem;
    text-align: center;
}
#mappingLoadingSpinner {
    padding: 4rem 0;
}

#loadingSpinner .emoji-spinner,
#mappingLoadingSpinner .emoji-spinner {
    animation: spin 1s linear infinite;
    font-size: 2rem;
    display: inline-block;
}
#loadingSpinner p,
#mappingLoadingSpinner p {
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}


@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1rem;
}

.modal-content {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 56rem;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border-light);
}
.modal-header h2 {
    text-align: left;
    margin: 0;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-text-faint);
    cursor: pointer;
    padding: 0 0.5rem;
    line-height: 1;
}
.modal-close-btn:hover {
    color: var(--color-text-primary);
}

#fileUploadFormContainer {
    overflow-y: auto;
}

#mappingFormContainer {
    padding: 1.5rem;
    overflow-y: auto;
}

.mapping-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 768px) {
    .mapping-grid {
        grid-template-columns: 1fr 1fr;
    }
}
.mapping-grid section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.form-field label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}
.form-field select {
    font-weight: 600;
}


.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-gray-light-bg);
    display: flex;
    justify-content: flex-end;
}
.modal-confirm-btn {
    background-color: var(--color-brand);
    color: white;
}
.modal-confirm-btn:hover {
   background-color: var(--color-brand-hover);
}

#view-dashboard {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: white;
}

 #main-header {
    background: transparent;
    position: sticky;
    top: 0;
    z-index: 60;
}

#main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    height: 3.25rem;
    max-width: min(80rem, calc(100% - 4rem));
    margin: 0 auto;
    padding: 0.5rem 1rem;
    background-color: rgb(21 47 103);
    border-radius: 0.75rem;
    position: relative;
    transform: translateY(0.6rem);
}

@media (min-width: 640px) {
    #main-nav {
        padding: 0.5rem 2rem;
    }
}

#nav-links-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 640px) {
    #nav-links-container {
        gap: 1.5rem;
    }
}

.nav-link {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0.35rem 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-faint);
    cursor: pointer;
    border-radius: 0.25rem;
    transition: color 0.15s ease;
}
.nav-link:hover {
    color: var(--color-brand);
}
.nav-link:focus {
    outline: none;
    text-decoration: underline;
}
.nav-link.active {
    color: var(--color-brand);
}

#exit-button-container {
    position: absolute;
    right: 1.5rem;
    top: 0.6rem;
}
#exitButton {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-primary);
    background-color: #ff4c4c;
    padding: 0.4rem 0.9rem;
    border: 2px solid #f87171;
    cursor: pointer;
}
#exitButton:hover {
    background: #ff5959;
}

main {
    max-width: 80rem;
    margin: 0 auto;
    padding: 1rem;
    flex-grow: 1;
    width: 100%;
}
@media (min-width: 640px) {
    main {
        padding: 2rem;
    }
}

.card {
    background-color: var(--color-bg-card);
    padding: 1.5rem;
    border-radius: var(--border-radius-xl);
    margin-bottom: 1.5rem;
}

#analysisSettings {
    background-color: var(--color-bg-card);
    padding: 1.5rem;
    border-radius: var(--border-radius-xl);
    margin-bottom: 1.5rem;
}

#settings-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 768px) {
    #settings-grid {
        grid-template-columns: 2fr 1fr;
    }
}

#raceday-filter-container {
    grid-column: 1 / -1;
}
#raceday-filter-container > label {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}
#racedayFilterGroup {
    flex-direction: row;
}

#flag-settings > label {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

#flagCheckboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem 0.5rem;
}
#flagCheckboxes .checkbox-group {
    margin-right: 1rem;
}

#filter-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
@media (min-width: 768px) {
    #filter-controls {
        align-items: flex-start;
    }
}

#updateAnalysisButton {
    width: 100%;
    background-color: rgb(4 22 60 / 52%);
    color: white;
    padding: 0.5rem 1.5rem;
}
#updateAnalysisButton:hover {
    background-color: var(--color-brand-hover);
}

#chartsContainer h2 {
    margin-bottom: 0.5rem;
}
#chartsContainer #summaryText {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
    text-align: center;
}
#chartsContainer #chartSubtitle {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    text-align: center;
}

.chart-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 1280px) {
    .chart-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
}

table thead {
    background-color: var(--color-bg);
}

table th, table td {
    padding: 0.75rem 1rem;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--color-border-light);
}

table th {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-faint);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

table tbody tr:hover {
    background-color: #F9FAFB;
}

table td {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}
table td:first-child {
    font-weight: 500;
    color: var(--color-text-primary);
}

.simulator-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 1024px) {
    .simulator-grid {
        grid-template-columns: 1fr 2fr;
    }
}

.simulator-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.simulator-controls h3 {
    margin-top: 1rem;
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}
.simulator-controls .help-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 0.25rem 0;
}
.simulator-controls .button-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}
#simControlButton {
    background-color: var(--color-brand);
    color: white;
}
#simControlButton:hover {
    background-color: var(--color-green-hover);
}
#simResetButton {
    background-color: var(--color-gray);
    color: white;
}
#simResetButton:hover {
    background-color: var(--color-gray-hover);
}

.simulator-canvas-container {
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
}
@media (min-width: 1024px) {
    .simulator-canvas-container {
        min-height: 500px;
    }
}
.canvas-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
#trackSimulatorCanvas {
    background-color: var(--color-bg-card);
    cursor: crosshair;
}
#simTimerDisplay {
    position: absolute;
    text-align: center;
    pointer-events: none;
}
#simTimerDisplay .timer-text {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
}
#simTimerDisplay .timer-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-faint);
}

.legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}
.legend > div {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
.legend-color-box {
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--color-text-faint);
    border-radius: 0.125rem;
}
.legend-color-box.s1 { background-color: var(--color-s1); }
.legend-color-box.s2 { background-color: var(--color-s2); }
.legend-color-box.s3 { background-color: var(--color-s3); }

#simulatorErrorMessage {
    color: var(--color-red);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

#aiAnalysisContainer {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}
#aiAnalysisContainer section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.ai-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 1024px) {
    .ai-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
.ai-table {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-lg);
}
.ai-table table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}
.ai-table th, .ai-table td {
    padding: 0.5rem 0.75rem;
}

.ai-text-prose {
    color: var(--color-text-secondary);
    line-height: 1.6;
}
.ai-text-prose h4 {
    margin-top: 1.5rem;
}
.ai-text-prose p {
    margin-bottom: 1rem;
}
.ai-text-prose strong {
    color: var(--color-text-primary);
}

#paceDegradationDriverSelectionControls {
    display: flex;
    align-items: center;
    gap: 1rem;
}
#paceDegradationDriverSelectionControls button {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.75rem 0.75rem;
    box-shadow: none;
}
#toggleSelectAllPaceDrivers {
    background-color: rgb(4 22 60 / 51%);
    color: white;
}
#toggleSelectAllPaceDrivers:hover {
    background-color: #BEE3F8;
}
#updatePaceDegradationChart {
    background-color: var(--color-brand);
    color: white;
}
#updatePaceDegradationChart:hover {
    background-color: var(--color-green-hover);
}

.driver-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    max-height: 12rem;
    overflow-y: auto;
    padding: 0.5rem;
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-lg);
}
@media (min-width: 640px) {
    .driver-checkbox-grid { grid-template-columns: repeat(6, 1fr); }
}
@media (min-width: 768px) {
    .driver-checkbox-grid {grid-template-columns: repeat(10, 1fr);}
}
@media (min-width: 1024px) {
    .driver-checkbox-grid { grid-template-columns: repeat(10, 1fr); }
}

.driver-checkbox-grid label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.5rem;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    margin: 0;
}
.driver-checkbox-grid label:has(input:checked) {
    background-color: rgb(4 22 60 / 13%);
    color: white;
}
.driver-checkbox-grid label:has(input:disabled) {
    background-color: var(--color-bg);
    color: #9CA3AF;
    cursor: not-allowed;
}

.fingerprint-controls {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1rem;
}
.fingerprint-controls label {
    margin-bottom: 0;
}
.fingerprint-controls select {
    max-width: 24rem;
}

#chartBestLapRaceContainer,
#chartPaceVsPosContainer,
#chartConsistencyContainer,
#chartCostlyMistakeContainer,
#chartPitStopContainer,
#chartPaceEvolutionContainer,
#chartConsistencyDeltaContainer,
#chartRacecraftDeltaContainer {
    min-height: 500px;
}
#chartPaceDegradationContainer,
#chartPaceQuadrantContainer {
    height: 500px;
}
#chartSectorFingerprintContainer,
#chartSectorEvolutionContainer {
    min-height: 400px;
}

#main-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1rem;
}

#nav-logo {
    flex: 0 0 auto;
}

#nav-logo .logo-text {
    font-weight: 900;
    font-size: 1.125rem;
    color: var(--color-text-primary);
    letter-spacing: 0.4px;
    position: absolute;
    left: 1.5rem;
    top: 1rem;
}

#nav-links-container {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

#nav-links-container .nav-link {
    background: transparent;
    border: none;
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    color: #d4d4d4;
}

#nav-links-container .nav-link.active {
    background: rgb(185 234 255 / 20%);
    color: rgb(215 215 215);
    text-decoration: none;
}

#exit-button-container {
    flex: 0 0 auto;
}

@media (max-width: 640px) {
    #nav-links-container {
        justify-content: flex-start;
        gap: 0.25rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    #nav-logo .logo-text {
        font-size: 1rem;
    }
}

#apiKeySection p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.api-key-form {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    margin-top: 1rem;
}
.api-key-form div {
    flex-grow: 1;
}
.api-key-form label {
    margin-bottom: 0.25rem;
}
.api-key-form button {
    background-color: var(--color-brand);
    color: white;
    flex-shrink: 0;
}
.api-key-form button:hover {
    background-color: var(--color-brand-hover);
}
#apiKeyError {
    color: var(--color-red);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.chat-history-box {
    height: 60vh;
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    overflow-y: auto;
    background-color: var(--color-gray-light-bg);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-xl);
    word-wrap: break-word;
}
.message p {
    margin: 0;
    color: var(--color-text-primary);
}
.message.ai {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    align-self: flex-start;
}
.message.user {
    background-color: rgb(4 22 60 / 20%);
    align-self: flex-end;
}
.message.user p {
    color: var(--color-brand-light-text);
}
.message.error {
    background-color: var(--color-red-light-bg);
    color: var(--color-red-text);
    align-self: flex-start;
}
.message.error p {
    color: var(--color-red-text);
}

.message.ai p {
    margin-bottom: 0.5rem;
}
.message.ai strong {
    color: var(--color-text-primary);
}
.message.ai ul, .message.ai ol {
    padding-left: 1.25rem;
    margin: 0.5rem 0;
}
.message.ai li {
    margin-bottom: 0.25rem;
}
.message.ai table {
    font-size: 0.875rem;
    border-collapse: collapse;
    margin: 0.5rem 0;
    width: auto;
}
.message.ai th, .message.ai td {
    border: 1px solid var(--color-border-medium);
    padding: 0.25rem 0.5rem;
    text-align: left;
}
.message.ai th {
    background-color: var(--color-gray-light-bg);
}
.message.ai hr {
    margin: 1rem 0;
}

.chat-input-area {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    align-items: flex-start;
}
#chatInput {
    flex-grow: 1;
    resize: none;
    min-height: 50px;
    height: 50px;
    overflow-y: auto;
}
#sendChatButton {
    background-color: var(--color-brand);
    color: white;
    width: 50px;
    height: 50px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
#sendChatButton:hover {
    background-color: var(--color-brand-hover);
}

#chatLoading {
    text-align: left;
    margin-top: 0.5rem;
    color: var(--color-text-faint);
    font-size: 0.875rem;
    padding-left: 0.5rem;
}

#chatLoading p {
    display: inline-block;
    margin: 0;
}