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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 13px;
    height: 100vh;
    overflow: hidden;
    background: #f0f2f5;
    color: #333;
}

/* ============================================================
   LAYOUT
   ============================================================ */
#app    { display: flex; height: 100vh; }
#content { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

/* ============================================================
   SIDEBAR
   ============================================================ */
#sidebar {
    width: 200px;
    flex-shrink: 0;
    background: #2c3e50;
    color: #ecf0f1;
    display: flex;
    flex-direction: column;
}
.sidebar-brand {
    padding: 16px;
    font-size: 15px;
    font-weight: 700;
    border-bottom: 1px solid #3d5166;
    letter-spacing: 0.02em;
}
.nav-links { list-style: none; padding: 6px 0; }
.nav-links li {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 13px;
    color: #bdc3c7;
    transition: background 0.1s;
}
.nav-links li:hover  { background: #3d5166; color: #ecf0f1; }
.nav-links li.active { background: #1a252f; color: #ecf0f1; border-left: 3px solid #3498db; padding-left: 13px; }

.sidebar-context { flex: 1; padding: 12px 16px; border-top: 1px solid #3d5166; }
.ctx-item        { margin-bottom: 10px; }
.ctx-item.hidden { display: none; }
.ctx-label       { display: block; font-size: 10px; color: #7f8c8d; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px; }
.ctx-item span:not(.ctx-label) { font-size: 12px; word-break: break-word; }
.status-badge    { display: inline-block; padding: 1px 7px; border-radius: 10px; font-size: 10px; margin-left: 4px; vertical-align: middle; }
.status-badge.open   { background: #27ae60; }
.status-badge.closed { background: #c0392b; }

.sidebar-user { padding: 12px 16px; border-top: 1px solid #3d5166; }
.sidebar-user label { display: block; font-size: 10px; color: #7f8c8d; text-transform: uppercase; margin-bottom: 4px; }
.sidebar-user input {
    width: 100%;
    background: #3d5166;
    border: 1px solid #4a6278;
    color: #ecf0f1;
    padding: 5px 8px;
    border-radius: 3px;
    font-size: 12px;
}
.sidebar-user input::placeholder { color: #7f8c8d; }

/* ============================================================
   STATUS BAR
   ============================================================ */
#status-bar { padding: 7px 16px; font-size: 12px; flex-shrink: 0; }
#status-bar.hidden    { display: none; }
.status-info    { background: #d6eaf8; color: #1a5276; border-bottom: 1px solid #aed6f1; }
.status-success { background: #d5f5e3; color: #1e8449; border-bottom: 1px solid #a9dfbf; }
.status-error   { background: #fadbd8; color: #922b21; border-bottom: 1px solid #f1948a; }

/* ============================================================
   VIEWS
   ============================================================ */
.view        { flex: 1; overflow: hidden; padding: 12px; display: none; flex-direction: column; gap: 8px; }
.view.active { display: flex; }
.view.hidden { display: none !important; }

/* ============================================================
   SOURCES VIEW — two-column
   ============================================================ */
.two-col-layout { display: flex; gap: 10px; flex: 1; overflow: hidden; }
.panel {
    flex: 1;
    background: white;
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    min-width: 0;
}
.panel-header {
    padding: 9px 12px;
    border-bottom: 1px solid #e8ecf0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f8fafc;
    font-weight: 600;
    font-size: 12px;
    flex-shrink: 0;
}
.header-actions { display: flex; gap: 6px; align-items: center; }
.grid-fill { flex: 1; min-height: 0; }

/* ============================================================
   VERSIONS VIEW
   ============================================================ */
.view-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
#versions-source-label { font-weight: 600; font-size: 13px; flex: 1; }
#versions-grid { flex: 1; min-height: 200px; }

.version-actions {
    background: white;
    border-radius: 5px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    flex-wrap: wrap;
}
.version-actions.hidden { display: none; }
#version-actions-label { font-size: 12px; font-weight: 600; flex: 1; min-width: 120px; }

.inline-form {
    background: white;
    border-radius: 5px;
    padding: 14px 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    flex-shrink: 0;
}
.inline-form h3 { font-size: 13px; margin-bottom: 10px; font-weight: 600; }
.inline-form.hidden { display: none; }

.form-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.form-row label, .inline-form label {
    font-size: 11px;
    color: #555;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.form-row input[type=text],
.form-row input[type=date],
.form-row input[type=number],
.inline-form input[type=text],
.inline-form input[type=date],
.inline-form input[type=number] {
    border: 1px solid #dce1e7;
    padding: 5px 8px;
    border-radius: 3px;
    font-size: 12px;
    min-width: 140px;
    color: #333;
}
.form-actions { display: flex; gap: 8px; }

/* ============================================================
   FORECAST VIEW
   ============================================================ */
.forecast-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
#forecast-label { font-weight: 600; font-size: 13px; flex: 1; }

.forecast-layout { display: flex; gap: 10px; flex: 1; overflow: hidden; min-height: 0; }

#pivot-panel {
    flex: 1;
    background: white;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    min-width: 0;
}
#pivot-grid { width: 100%; height: 100%; }

#operation-panel {
    width: 270px;
    flex-shrink: 0;
    background: white;
    border-radius: 5px;
    padding: 14px;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.op-section  { display: flex; flex-direction: column; gap: 6px; }
.op-title    { font-size: 10px; font-weight: 700; text-transform: uppercase; color: #7f8c8d; letter-spacing: 0.05em; }
.op-hint     { font-size: 11px; color: #aaa; }

#slice-display { display: flex; flex-wrap: wrap; gap: 4px; min-height: 24px; }
.slice-tag {
    background: #eaf4fb;
    color: #1a6fa8;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    cursor: default;
}

.op-tabs { display: flex; border-bottom: 2px solid #eee; margin-bottom: 10px; }
.op-tab {
    background: none;
    border: none;
    padding: 6px 14px;
    font-size: 12px;
    cursor: pointer;
    color: #666;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}
.op-tab.active       { color: #2980b9; border-bottom-color: #2980b9; font-weight: 600; }
.op-tab:hover:not(.active) { color: #333; }

.op-form        { display: flex; flex-direction: column; gap: 8px; }
.op-form.hidden { display: none; }
.op-form label  { font-size: 11px; color: #555; display: flex; flex-direction: column; gap: 3px; }
.op-form input[type=text],
.op-form input[type=number] {
    border: 1px solid #dce1e7;
    padding: 5px 8px;
    border-radius: 3px;
    font-size: 12px;
}
.label-inline { flex-direction: row !important; align-items: center; gap: 6px !important; font-size: 12px !important; }
#op-forms-area        { display: flex; flex-direction: column; gap: 0; }
#op-forms-area.hidden { display: none; }

.recode-field, .clone-field { margin-bottom: 8px; }
.recode-field label, .clone-field label { font-size: 11px; color: #555; display: block; margin-bottom: 2px; }
.field-hint { font-size: 10px; color: #aaa; }

/* ============================================================
   LOG VIEW
   ============================================================ */
#log-grid { flex: 1; min-height: 0; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    padding: 5px 12px;
    border: 1px solid #dce1e7;
    background: white;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    white-space: nowrap;
    color: #333;
}
.btn:hover             { background: #f0f2f5; }
.btn:active            { background: #e8ecf0; }
.btn-primary           { background: #2980b9; color: white; border-color: #2574a9; }
.btn-primary:hover     { background: #2574a9; }
.btn-danger            { background: #e74c3c; color: white; border-color: #d44332; }
.btn-danger:hover      { background: #d44332; }
.btn-sm                { padding: 2px 8px; font-size: 11px; }
.btn.hidden            { display: none; }
.btn-icon { background: none; border: none; font-size: 20px; cursor: pointer; color: #666; line-height: 1; padding: 0 4px; }
.btn-icon:hover { color: #333; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal-overlay.hidden { display: none; }
.modal {
    background: white;
    border-radius: 6px;
    width: 720px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 40px rgba(0,0,0,.2);
}
.modal-header {
    padding: 14px 18px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 13px;
}
#modal-body { padding: 16px 18px; overflow-y: auto; flex: 1; font-size: 12px; }
.modal-footer { padding: 10px 18px; border-top: 1px solid #eee; display: flex; justify-content: flex-end; gap: 8px; }

/* ============================================================
   LOAD BASELINE / REFERENCE MODAL
   ============================================================ */
.load-data-modal { width: 480px; max-height: 80vh; }

#load-data-body {
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.load-form-fields {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.load-form-fields label {
    font-size: 11px;
    color: #555;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.load-form-fields input[type=date],
.load-form-fields input[type=text] {
    border: 1px solid #dce1e7;
    padding: 7px 10px;
    border-radius: 3px;
    font-size: 13px;
    color: #333;
    width: 100%;
}

.load-form-fields input[type=date]:focus,
.load-form-fields input[type=text]:focus {
    outline: none;
    border-color: #2980b9;
    box-shadow: 0 0 0 2px rgba(41,128,185,.15);
}

.load-offset-row { display: flex; gap: 12px; }
.load-offset-row label { flex: 1; }

.load-date-preview { display: flex; flex-direction: column; gap: 8px; }
.load-date-preview.hidden { display: none; }

.load-preview-columns {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.load-preview-col { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.load-preview-arrow {
    font-size: 20px;
    color: #aaa;
    padding-top: 18px;
    flex-shrink: 0;
}

.load-preview-label {
    font-size: 11px;
    font-weight: 600;
    color: #7f8c8d;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.date-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.date-chip {
    background: #eaf4fb;
    color: #1a6fa8;
    border: 1px solid #c5dff0;
    padding: 3px 9px;
    border-radius: 12px;
    font-size: 11px;
    white-space: nowrap;
}

.date-chip-summary {
    font-size: 12px;
    color: #555;
    font-style: italic;
}

.preview-section h4 { font-size: 12px; margin-bottom: 6px; color: #555; }
.preview-section + .preview-section { margin-top: 16px; }
.preview-table { border-collapse: collapse; width: 100%; font-size: 11px; }
.preview-table th, .preview-table td { border: 1px solid #e0e0e0; padding: 4px 8px; text-align: left; }
.preview-table th { background: #f5f7f9; font-weight: 600; }
.preview-table tr:hover td { background: #fafbfc; }

/* ============================================================
   BASELINE WORKBENCH
   ============================================================ */
.workbench-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
#baseline-label { font-weight: 600; font-size: 13px; flex: 1; }

.baseline-layout {
    display: flex;
    gap: 10px;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.baseline-form-panel {
    width: 360px;
    flex-shrink: 0;
    background: white;
    border-radius: 5px;
    padding: 14px 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.baseline-segments-panel {
    flex: 1;
    background: white;
    border-radius: 5px;
    padding: 14px 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.panel-section-title {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: #7f8c8d;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.baseline-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.baseline-field-label {
    font-size: 11px;
    color: #555;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.baseline-field-label input[type=text],
.baseline-field-label input[type=number] {
    border: 1px solid #dce1e7;
    padding: 5px 8px;
    border-radius: 3px;
    font-size: 12px;
    color: #333;
}

.offset-row { display: flex; gap: 10px; }
.offset-row label { flex: 1; }

.filter-section { display: flex; flex-direction: column; gap: 6px; }
.filter-section-label {
    font-size: 11px;
    color: #555;
    font-weight: 600;
}
.required-star { color: #e74c3c; }

.filter-row {
    display: flex;
    gap: 4px;
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 6px 8px;
    background: #f8fafc;
    border: 1px solid #e8ecf0;
    border-radius: 3px;
    margin-bottom: 4px;
}

.filter-row select,
.filter-row input[type=text] {
    border: 1px solid #dce1e7;
    padding: 4px 6px;
    border-radius: 3px;
    font-size: 11px;
    color: #333;
    background: white;
}

.filter-col-select { min-width: 120px; }
.filter-op-select  { min-width: 90px; }
.filter-val-single,
.filter-val-list   { min-width: 120px; flex: 1; }
.filter-val-from,
.filter-val-to     { min-width: 90px; flex: 1; }
.filter-between-sep { font-size: 11px; color: #aaa; padding: 5px 2px; }
.filter-value-container { display: flex; align-items: center; gap: 4px; flex: 1; min-width: 0; }

/* Timeline preview */
.timeline-preview { display: flex; flex-direction: column; gap: 6px; padding: 10px 0 4px; }
.timeline-preview.hidden { display: none; }

.timeline-row { display: flex; align-items: center; gap: 8px; }
.timeline-row-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: #7f8c8d;
    letter-spacing: 0.04em;
    width: 60px;
    flex-shrink: 0;
    text-align: right;
}
.timeline-bar-wrap { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.timeline-bar {
    height: 14px;
    background: #2980b9;
    border-radius: 3px;
    width: 100%;
}
.timeline-bar-projected { background: #27ae60; }
.timeline-bar-labels {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: #666;
}
.timeline-offset-indicator {
    font-size: 11px;
    color: #aaa;
    padding: 2px 0 2px 68px;
    font-style: italic;
}

/* Segment cards */
.segment-card {
    border: 1px solid #e8ecf0;
    border-radius: 4px;
    padding: 10px 12px;
    background: #fafbfc;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.segment-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
}
.segment-card-note {
    font-size: 12px;
    font-weight: 600;
    flex: 1;
}
.segment-card-meta {
    font-size: 11px;
    color: #888;
}
.segment-card-params {
    font-size: 11px;
    color: #555;
    font-family: monospace;
    white-space: pre-wrap;
    word-break: break-word;
}
.segments-empty { font-size: 12px; color: #aaa; font-style: italic; }