/* -----------------------------------------------------------------------
   Google Fonts — Instrument Sans (display) + Source Sans 3 (body)
   ----------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700&family=Source+Sans+3:wght@400;500;600;700&display=swap');

/* -----------------------------------------------------------------------
   Design tokens — light theme
   Palette: #0095ff · #082b45 · #0967aa · #7dbce8 · #c6dcec
   ----------------------------------------------------------------------- */
:root {
    /* Page & chart surfaces */
    --bg-body:            #e8f2fb;
    --bg-container:       #ffffff;
    --bg-chart:           #ffffff;

    /* Text — chart / right panel */
    --text-primary:       #082b45;
    --text-secondary:     #0967aa;
    --text-muted:         #5a90b8;

    /* Inputs — chart / right panel */
    --bg-input:           #ffffff;
    --border-input:       #b0d0e8;
    --border-input-focus: #0095ff;

    /* Accent */
    --accent:             #0095ff;
    --accent-hover:       #0075cc;
    --accent-subtle:      #dceffe;

    /* Chart helpers */
    --grid-line:          #d4d4d4;
    --axis-stroke:        #bbbbbb;
    --axis-text:          #111111;
    --weekend-bg:         #eeeeee;
    --weekend-text:       #888888;
    --holiday-bg:         #fff0f0;
    --week-band-odd:      transparent;
    --week-band-even:     #f0f0f0;

    /* Elevation */
    --shadow-sm:          0 1px 3px rgba(8,43,69,0.10), 0 1px 2px rgba(8,43,69,0.06);
    --shadow-md:          0 4px 16px rgba(8,43,69,0.12), 0 2px 6px rgba(8,43,69,0.07);
    --shadow:             var(--shadow-md);

    /* Header — deepest navy, anchors the top */
    --header-bg:          #051e30;
    --header-border:      #031422;
    --header-text:        #e8f4fd;
    --header-subtext:     #7dbce8;

    /* Form sidebar */
    --form-bg:            #e6e5ea;
    --form-border:        #cccbd2;
    --form-text-primary:  #111111;
    --form-text-secondary:#222222;
    --form-text-muted:    #555555;
    --form-input-bg:      #ffffff;
    --form-input-border:  #cccccc;
    --form-card-bg:       #ffffff;
    --form-card-border:   #cccccc;
    --bg-form-item:       #e6e5ea;
    --bg-form-item-border:#cccbd2;
}

/* -----------------------------------------------------------------------
   Dark theme tokens — deep blue axis throughout
   ----------------------------------------------------------------------- */
body.dark {
    /* Page & chart */
    --bg-body:            #020e18;
    --bg-container:       #061724;
    --bg-chart:           #061724;
    --bg-input:           #0a2236;

    /* Text — chart / right panel */
    --text-primary:       #e8f4fd;
    --text-secondary:     #7dbce8;
    --text-muted:         #3d6e90;

    /* Inputs — chart / right panel */
    --border-input:       #133d5c;
    --border-input-focus: #0095ff;

    /* Accent */
    --accent:             #0095ff;
    --accent-hover:       #29aaff;
    --accent-subtle:      #031422;

    /* Chart helpers */
    --grid-line:          #2a3f52;
    --axis-stroke:        #3a5568;
    --axis-text:          #c8dff0;
    --weekend-bg:         #0a1e2e;
    --weekend-text:       #4a7fa8;
    --holiday-bg:         #2a0a0a;
    --week-band-odd:      transparent;
    --week-band-even:     #0d2035;

    /* Elevation */
    --shadow-sm:          0 1px 4px rgba(0,0,0,0.45);
    --shadow-md:          0 4px 20px rgba(0,0,0,0.55);
    --shadow:             var(--shadow-md);

    /* Header */
    --header-bg:          #020e18;
    --header-border:      #031422;
    --header-text:        #e8f4fd;
    --header-subtext:     #3d6e90;

    /* Form sidebar — deepened in dark mode */
    --form-bg:            #031422;
    --form-border:        #152535;
    --form-text-primary:  #e8f4fd;
    --form-text-secondary:#7dbce8;
    --form-text-muted:    #3d6e90;
    --form-input-bg:      #142230;
    --form-input-border:  #1e3345;
    --form-card-bg:       #142230;
    --form-card-border:   #1e3345;
    --form-divider:       #152535;
    --form-accent-subtle: #020e18;

    /* Legacy aliases */
    --bg-form-item:       #031422;
    --bg-form-item-border:#152535;
}

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

body {
    font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-body);
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
    transition: background 0.3s, color 0.3s;
}

/* -----------------------------------------------------------------------
   Layout
   ----------------------------------------------------------------------- */
.container {
    max-width: 100%;
    margin: 0 auto;
    background: var(--bg-container);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: background 0.3s;
}

header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 16px 24px;
    border-bottom: 1px solid var(--header-border);
    transition: background 0.3s, border-color 0.3s;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

header h1 {
    font-family: 'Instrument Sans', sans-serif;
    font-size: 1.25em;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--header-text);
}

header p {
    font-size: 0.8em;
    color: var(--header-subtext);
    margin-top: 2px;
}

.content {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 0;
    height: calc(100vh - 72px);
    overflow: hidden;
    transition: grid-template-columns 0.3s ease;
    position: relative;
}

.content.panel-hidden {
    grid-template-columns: 0px 1fr;
}

.content.panel-hidden .form-section {
    overflow: hidden;
    padding: 0;
    border-right: none;
}

.content.panel-hidden .preview-section {
    padding-left: 28px;
}

@media (max-width: 1024px) {
    .content {
        grid-template-columns: 1fr;
        height: auto;
        overflow: visible;
    }
    .content.panel-hidden {
        grid-template-columns: 1fr;
    }
    
    /* Hide the toggle button on mobile since panel stacks vertically */
    .toggle-panel-btn {
        display: none !important;
    }
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    padding: 20px 18px;
    border-right: 1px solid var(--form-border);
    background: var(--form-bg);
    transition: background 0.3s, border-color 0.3s;
    min-width: 0;
}

/* -----------------------------------------------------------------------
   Form section — scoped overrides for dark sidebar context
   ----------------------------------------------------------------------- */

/* Headings */
.form-section h2,
.form-section .section-label {
    color: var(--form-text-muted);
    border-bottom-color: var(--form-divider);
}

/* All labels inside the sidebar */
.form-section label:not(.btn):not(.toggle-label) {
    color: var(--form-text-muted);
}

/* Inputs and selects */
.form-section input[type="text"],
.form-section input[type="date"],
.form-section input[type="number"],
.form-section select {
    background: var(--form-input-bg);
    border-color: var(--form-input-border);
    color: #111111;
}

.form-section input[type="text"]:focus,
.form-section input[type="date"]:focus,
.form-section input[type="number"]:focus,
.form-section select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,149,255,0.18);
}

/* Color swatch border */
.form-section .activity-color-swatch {
    border-color: var(--form-input-border);
    background: var(--form-input-bg);
}

/* Secondary buttons — white on sidebar background */
.form-section .btn-secondary {
    background: #ffffff;
    color: #111111;
    border-color: #cccccc;
}

.form-section .btn-secondary:hover {
    background: #ffffff;
    border-color: #111111;
    color: #111111;
}

/* Primary button */
.form-section .btn-primary {
    background: var(--accent);
    color: #ffffff;
}

.form-section .btn-primary:hover {
    background: #29aaff;
    box-shadow: 0 2px 8px rgba(0,149,255,0.4);
}

/* Dark mode — sidebar buttons */
body.dark .form-section .btn-secondary {
    background: transparent;
    color: #7dbce8;
    border-color: #1e3345;
}

body.dark .form-section .btn-secondary:hover {
    background: rgba(0,149,255,0.12);
    border-color: #0095ff;
    color: #0095ff;
}

body.dark .form-section .btn-primary {
    background: #0095ff;
    color: #e8f4fd;
}

body.dark .form-section .btn-primary:hover {
    background: #29aaff;
    box-shadow: 0 2px 8px rgba(0,149,255,0.4);
}

/* Activity cards */
.form-section .activity-item {
    background: var(--form-card-bg);
    border-color: var(--form-card-border);
}

.form-section .activity-item:hover {
    border-color: var(--accent);
}

/* In dark mode, inputs inside cards go back to light text */
body.dark .form-section input[type="text"],
body.dark .form-section input[type="date"],
body.dark .form-section input[type="number"],
body.dark .form-section select {
    color: var(--form-text-primary);
}

/* Remove activity button */
.form-section .remove-activity {
    color: var(--form-text-muted);
}

.form-section .remove-activity:hover {
    color: #f08080;
    background: rgba(240,128,128,0.1);
}

/* FTE hint */
.form-section .fte-hint {
    color: #7dbce8;
}

/* Holidays widget */
.form-section .holidays-section {
    background: var(--form-card-bg);
    border-color: var(--form-card-border);
}

.form-section .holidays-section summary {
    color: var(--form-text-secondary);
}

.form-section .holidays-section[open] summary {
    border-bottom-color: var(--form-divider);
}

.form-section .holidays-empty {
    color: var(--form-text-muted);
}

/* Instructions widget */
.form-section .instructions {
    background: var(--form-accent-subtle);
    border-left-color: var(--accent);
}

.form-section .instructions li {
    color: var(--form-text-secondary);
}

/* Autosave */
.form-section .autosave-status {
    color: var(--form-text-muted);
}

/* -----------------------------------------------------------------------
   Panel toggle button — pinned to the column boundary inside .content
   ----------------------------------------------------------------------- */

.toggle-panel-btn {
    position: absolute;
    top: 50%;
    left: 380px;
    transform: translate(-50%, -50%);
    z-index: 10;
    width: 20px;
    height: 48px;
    padding: 0;
    border: 1px solid var(--bg-form-item-border);
    border-radius: 6px;
    background: var(--bg-form-item);
    color: var(--text-muted);
    font-size: 1.1em;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s, border-color 0.15s, left 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.toggle-panel-btn:hover {
    background: var(--bg-container);
    color: var(--accent);
    border-color: var(--accent);
}

.content.panel-hidden .toggle-panel-btn {
    left: 0px;
}

.preview-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    min-height: 0;
    padding: 20px 24px;
}

/* -----------------------------------------------------------------------
   Typography
   ----------------------------------------------------------------------- */
h2 {
    font-family: 'Instrument Sans', sans-serif;
    color: var(--text-muted);
    font-size: 0.78em;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-bottom: none;
    padding-bottom: 0;
}

h3 { color: var(--text-secondary); font-size: 1.0em; margin-top: 4px; }

/* -----------------------------------------------------------------------
   Form elements
   ----------------------------------------------------------------------- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

label {
    font-family: 'Instrument Sans', sans-serif;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.75em;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

input[type="text"],
input[type="date"],
input[type="number"],
select {
    padding: 6px 9px;
    border: 1px solid var(--border-input);
    border-radius: 6px;
    font-size: 0.875em;
    font-family: 'Source Sans 3', sans-serif;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.15s, box-shadow 0.15s, background 0.3s;
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--border-input-focus);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

/* -----------------------------------------------------------------------
   Activity items
   ----------------------------------------------------------------------- */
#activitiesContainer {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 2px;
}

.activity-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 10px;
    background: var(--bg-container);
    border-radius: 8px;
    border: 1px solid var(--bg-form-item-border);
    transition: background 0.3s, border-color 0.3s;
    box-shadow: var(--shadow-sm);
}

.activity-item:hover {
    border-color: var(--accent);
}

/* Name + color + remove on one row */
.activity-header-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 6px;
    align-items: center;
}

.activity-item input:not([type="color"]),
.activity-item select {
    width: 100%;
}

/* FTE row */
.activity-fields {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
}

.fte-hint {
    display: inline-block;
    font-size: 0.74em;
    color: var(--accent);
    font-weight: 600;
    white-space: nowrap;
    padding-top: 7px;
}

.fte-hint-group {
    justify-content: flex-end;
}

/* Color picker — compact inline swatch */
.activity-color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    padding: 1px;
    border: 1px solid var(--border-input);
    background: var(--bg-input);
    flex-shrink: 0;
}

.custom-start-date { display: none; }
.custom-start-date.show { display: block; }

/* -----------------------------------------------------------------------
   Holidays
   ----------------------------------------------------------------------- */
.holidays-section {
    border: 1px solid var(--bg-form-item-border);
    border-radius: 8px;
    transition: border-color 0.3s;
    background: var(--bg-container);
    box-shadow: var(--shadow-sm);
}

.holidays-section summary {
    border-radius: 7px;
    padding: 8px 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.82em;
    color: var(--text-secondary);
    background: transparent;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

.holidays-section summary:hover { color: var(--accent); }
.holidays-section summary::-webkit-details-marker { display: none; }
.holidays-section summary::before { content: '▶'; font-size: 0.65em; transition: transform 0.2s; }
.holidays-section[open] summary { border-radius: 7px 7px 0 0; border-bottom: 1px solid var(--bg-form-item-border); }
.holidays-section[open] summary::before { transform: rotate(90deg); }

.holidays-body {
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.holidays-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 20px;
}

.holidays-empty {
    font-size: 0.82em;
    color: var(--text-muted);
    font-style: italic;
}

.holiday-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--holiday-bg);
    border: 1px solid #f5a5a5;
    border-radius: 20px;
    padding: 2px 8px 2px 10px;
    font-size: 0.78em;
    color: #c0392b;
    font-weight: 600;
}

body.dark .holiday-tag {
    background: #200a0a;
    border-color: #5a1515;
    color: #f08080;
}

.holiday-tag button {
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    font-size: 1.0em;
    line-height: 1;
    padding: 0;
    width: auto !important;
    opacity: 0.6;
}

.holiday-tag button:hover { opacity: 1; }

.holiday-input-row {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 8px;
}

.holiday-actions {
    display: flex;
    gap: 6px;
}

/* -----------------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------------- */
.btn {
    padding: 6px 14px;
    border: none;
    border-radius: 6px;
    font-family: 'Instrument Sans', sans-serif;
    font-size: 0.82em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s, transform 0.1s, border-color 0.15s;
    text-align: center;
    display: inline-block;
    letter-spacing: 0.01em;
    text-transform: none;
}

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

.btn-sm { padding: 4px 9px; font-size: 0.76em; }

/* Dark mode toggle in header */
.btn-icon {
    background: rgba(125,188,232,0.12);
    color: #7dbce8;
    border: 1px solid rgba(125,188,232,0.2);
    border-radius: 8px;
    width: 34px;
    height: 34px;
    padding: 0;
    font-size: 1.0em;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(125,188,232,0.22);
    color: #c6dcec;
    border-color: rgba(125,188,232,0.35);
}

.btn-icon.github-link {
    color: #ffffff;
}

.btn-icon.github-link:hover {
    color: #ffffff;
}

/* Primary — brand accent blue */
.btn-primary {
    background: #0095ff;
    color: #e8f4fd;
}

.btn-primary:hover {
    background: #0075cc;
    box-shadow: 0 2px 8px rgba(0,149,255,0.35);
}

body.dark .btn-primary {
    background: #0095ff;
    color: #e8f4fd;
}

body.dark .btn-primary:hover {
    background: #29aaff;
    box-shadow: 0 2px 8px rgba(0,149,255,0.4);
}

/* Secondary — ghost style */
.btn-secondary {
    background: transparent;
    color: #111111;
    border: 1px solid var(--border-input);
}

.btn-secondary:hover {
    background: var(--accent-subtle);
    border-color: var(--accent);
    color: #111111;
}

body.dark .btn-secondary {
    color: #7dbce8;
    border-color: #1a4468;
}

body.dark .btn-secondary:hover {
    background: #051c2e;
    border-color: #0095ff;
    color: #0095ff;
}

/* Remove activity — ghost danger */
.remove-activity {
    background: none;
    color: var(--text-muted);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9em;
    line-height: 1;
    padding: 2px 5px;
    transition: color 0.15s, background 0.15s;
    width: auto !important;
    flex-shrink: 0;
}

.remove-activity:hover {
    color: #c0392b;
    background: #fff0f0;
}

body.dark .remove-activity:hover {
    color: #f08080;
    background: #200a0a;
}

.project-actions {
    display: flex;
    gap: 6px;
    margin-top: 2px;
}

.project-actions .btn { flex: 1; }

/* -----------------------------------------------------------------------
   Preview section header
   ----------------------------------------------------------------------- */
.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.preview-header h2 {
    flex: 1;
    border-bottom: none;
    padding-bottom: 0;
}

.preview-section .toggle-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8em;
    font-weight: 600;
    color: #111111;
    cursor: pointer;
    white-space: nowrap;
    text-transform: none;
    letter-spacing: normal;
}

body.dark .preview-section .toggle-label {
    color: var(--text-secondary);
}

.toggle-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: var(--accent);
}

/* -----------------------------------------------------------------------
   Gantt chart
   ----------------------------------------------------------------------- */
#ganttChart {
    background: var(--bg-chart);
    border: 1px solid var(--bg-form-item-border);
    border-radius: 8px;
    padding: 20px;
    min-height: 500px;
    overflow-x: auto;
    overflow-y: auto;
    width: 100%;
    transition: background 0.3s, border-color 0.3s;
    box-shadow: var(--shadow-sm);
}

#ganttChart svg { display: block; margin: 0 auto; }

.grid line {
    stroke: var(--grid-line);
    stroke-opacity: 0.7;
    shape-rendering: crispEdges;
}

.x-axis path,
.x-axis line { stroke: var(--axis-stroke); }

.x-axis text { font-size: 12px; fill: var(--axis-text); }

.activity-bar:hover rect {
    opacity: 1 !important;
    stroke: var(--accent);
    stroke-width: 2;
}

/* -----------------------------------------------------------------------
   Instructions
   ----------------------------------------------------------------------- */
.instructions {
    padding: 8px 12px;
    background: var(--accent-subtle);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
    transition: background 0.3s;
    font-size: 0.85em;
}

.instructions summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.82em;
    color: var(--accent);
    list-style: none;
    user-select: none;
    letter-spacing: 0.02em;
}

.instructions summary::-webkit-details-marker { display: none; }
.instructions summary::before { content: '▶ '; font-size: 0.65em; }
.instructions[open] summary::before { content: '▼ '; }

.instructions ul { list-style: none; padding: 0; margin-top: 6px; }

.instructions li {
    padding: 2px 0 2px 16px;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9em;
}

body.dark .instructions li {
    color: #7dbce8;
}

.instructions li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* -----------------------------------------------------------------------
   Misc
   ----------------------------------------------------------------------- */
.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
}

/* Divider label above activities list */
.section-label {
    font-family: 'Instrument Sans', sans-serif;
    font-size: 0.72em;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding-bottom: 2px;
    border-bottom: 1px solid var(--bg-form-item-border);
}

/* -----------------------------------------------------------------------
   Autosave status indicator
   ----------------------------------------------------------------------- */
.autosave-status {
    font-size: 0.72em;
    color: var(--text-muted);
    font-style: italic;
    opacity: 0;
    transition: opacity 0.4s ease;
    margin-top: 2px;
    text-align: right;
    display: block;
}

.autosave-status.visible {
    opacity: 1;
}

/* -----------------------------------------------------------------------
   X-axis row styling — week and month bands
   ----------------------------------------------------------------------- */
.x-axis-weeks rect,
.x-axis-months rect {
    /* fills are set inline from JS using CSS variables; no override needed */
}

/* -----------------------------------------------------------------------
   Milestone row — checkbox + character input
   ----------------------------------------------------------------------- */
.milestone-row {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 0;
}

.milestone-toggle-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: 'Instrument Sans', sans-serif;
    font-weight: 600;
    font-size: 0.75em;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
}

.milestone-toggle-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}

.milestone-inputs-row {
    display: flex !important;
    flex-direction: row !important;
    gap: 8px;
    align-items: center;
    margin-top: 0;
}

.milestone-character-input {
    width: 50px !important;
    max-width: 50px;
    flex-shrink: 0;
    flex-grow: 0;
    padding: 4px 6px;
    border: 1px solid var(--border-input);
    border-radius: 6px;
    font-size: 1.2em;
    font-family: 'Source Sans 3', sans-serif;
    background: var(--bg-input);
    color: var(--text-primary);
    text-align: center;
    transition: border-color 0.15s, box-shadow 0.15s, background 0.3s;
}

.milestone-character-input:focus {
    outline: none;
    border-color: var(--border-input-focus);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.milestone-date-input {
    flex: 1 1 auto;
    min-width: 120px;
    max-width: 100%;
    padding: 6px 9px;
    border: 1px solid var(--border-input);
    border-radius: 6px;
    font-size: 0.95em;
    font-family: 'Source Sans 3', sans-serif;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.15s, box-shadow 0.15s, background 0.3s;
}

.milestone-date-input:focus {
    outline: none;
    border-color: var(--border-input-focus);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.custom-label-row {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 0;
}

.custom-label-toggle-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: 'Instrument Sans', sans-serif;
    font-weight: 600;
    font-size: 0.75em;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
}

.custom-label-toggle-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}

.custom-label-input {
    flex: 1;
    min-width: 200px;
    padding: 6px 9px;
    border: 1px solid var(--border-input);
    border-radius: 6px;
    font-size: 0.95em;
    font-family: 'Source Sans 3', sans-serif;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.15s, box-shadow 0.15s, background 0.3s;
}

.custom-label-input:focus {
    outline: none;
    border-color: var(--border-input-focus);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.show-dates-row {
    margin-top: 0;
}

.show-dates-toggle-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: 'Instrument Sans', sans-serif;
    font-weight: 600;
    font-size: 0.75em;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
}

.show-dates-toggle-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}