/* Dark theme aligned with the desktop app */
:root {
    --bg-primary: #2e2e2e;
    --bg-secondary: #3c3c3c;
    --bg-input: #1e1e1e;
    --bg-table-header: #3c3c3c;
    --bg-table-odd: #2e2e2e;
    --bg-table-even: #333333;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --text-heading: #eaeaea;
    --border: #555555;
    --accent: #007acc;
    --accent-hover: #1a8ad4;
    --seg-color-0: #4caf50;
    --seg-color-1: #2196f3;
    --seg-color-2: #ff9800;
    --seg-color-3: #9c27b0;
    --danger: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

header {
    background: var(--bg-secondary);
    padding: 10px 20px;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-heading);
}

main {
    padding: 10px;
    height: calc(100vh - 45px);
}

/* Two-column layout */
.app-layout {
    display: flex;
    gap: 10px;
    height: 100%;
}

.panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.panel-left {
    flex: 0 0 40%;
    min-width: 300px;
}

.panel-right {
    flex: 1;
    min-width: 400px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.panel-header h2 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-heading);
}

/* Text area */
#parse-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.textarea-wrapper {
    flex: 1;
    position: relative;
    overflow: hidden;
}

textarea {
    width: 100%;
    height: 100%;
    background: var(--bg-input);
    color: var(--text-primary);
    border: none;
    padding: 10px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    resize: none;
    outline: none;
    position: relative;
    z-index: 2;
    white-space: pre-wrap;
    overflow-wrap: break-word;
    word-wrap: break-word;
    margin: 0;
    box-sizing: border-box;
    letter-spacing: normal;
}

/* Colored text display overlay — replaces the fragile backdrop approach */
.text-display {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 10px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    white-space: pre-wrap;
    overflow-wrap: break-word;
    word-wrap: break-word;
    overflow-y: auto;
    background: var(--bg-input);
    color: var(--text-primary);
    z-index: 3;
    margin: 0;
    box-sizing: border-box;
    border: none;
    letter-spacing: normal;
    cursor: text;
}

.seg-text-span {
    cursor: pointer;
    border-radius: 2px;
    transition: background-color 0.15s;
}

.seg-text-span:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Controls */
.controls-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-top: 1px solid var(--border);
}

.btn {
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 13px;
    transition: background 0.15s;
}

.btn:hover {
    background: var(--bg-input);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

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

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-export {
    background: var(--bg-input);
}

/* Focus states */
.btn:focus-visible,
.tab:focus-visible,
textarea:focus-visible,
input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.tab {
    padding: 8px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    transition: color 0.15s, border-color 0.15s;
}

.tab:hover {
    color: var(--text-primary);
}

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
    padding: 10px;
    overflow-y: auto;
    flex: 1;
}

.tab-content.active {
    display: block;
}

#results-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#results-area .tab-content.active {
    flex: 1;
    overflow-y: auto;
}

/* Engine info bar */
.engine-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    margin-bottom: 8px;
    font-size: 12px;
    flex-wrap: wrap;
}

.engine-badge {
    background: var(--accent);
    color: #fff;
    padding: 2px 8px;
    border-radius: 3px;
    font-weight: 600;
}

.format-badge {
    background: var(--bg-input);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 3px;
}

.engine-reason {
    color: var(--text-secondary);
}

/* Segment actions */
.segment-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.coord-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.coord-inputs label {
    font-size: 12px;
    color: var(--text-secondary);
}

.coord-input {
    width: 80px;
    padding: 3px 6px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-primary);
    font-size: 12px;
}

.export-buttons {
    display: flex;
    gap: 6px;
}

.inline-form {
    display: inline;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th {
    background: var(--bg-table-header);
    padding: 6px 10px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
}

td {
    padding: 5px 10px;
    border-bottom: 1px solid var(--border);
}

.oddrow {
    background: var(--bg-table-odd);
}

.evenrow {
    background: var(--bg-table-even);
}

/* 4-color segment cycling */
.seg-color-0 { border-left: 3px solid var(--seg-color-0); }
.seg-color-1 { border-left: 3px solid var(--seg-color-1); }
.seg-color-2 { border-left: 3px solid var(--seg-color-2); }
.seg-color-3 { border-left: 3px solid var(--seg-color-3); }

.seg-display {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
}

.type-badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
}

.type-line { background: var(--seg-color-0); color: #fff; }
.type-arc { background: var(--seg-color-1); color: #fff; }
.type-ref { background: var(--text-secondary); color: var(--bg-primary); }
.type-ai { background: #7c3aed; color: #fff; }

.segment-count {
    padding: 6px 0;
    font-size: 12px;
    color: var(--text-secondary);
}

/* Misclosure */
.misclosure-info {
    padding: 8px;
    background: var(--bg-input);
    border-radius: 3px;
    margin-bottom: 8px;
    font-size: 13px;
}

.misclosure-inline {
    font-size: 12px;
    color: var(--text-secondary);
    margin-left: auto;
}

/* Export buttons in controls row */
#export-buttons-bar {
    display: inline-flex;
    gap: 6px;
    margin-left: 6px;
}

/* Canvas */
.viz-container {
    position: relative;
    padding: 0;
    overflow: hidden;
}

.viz-container.active {
    display: flex;
}

#parcel-canvas {
    width: 100%;
    height: 100%;
    background: var(--bg-input);
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

/* Clickable segment rows */
.seg-row-clickable {
    cursor: pointer;
    transition: background 0.15s;
}

.seg-row-clickable:hover {
    background: rgba(255, 255, 255, 0.05);
}

.seg-row-active {
    background: rgba(255, 255, 255, 0.1) !important;
    outline: 1px solid var(--accent);
    outline-offset: -1px;
}

/* Segment text colors (matching desktop segment colors) */
.seg-text-0 { color: #4caf50; }
.seg-text-1 { color: #2196f3; }
.seg-text-2 { color: #ff9800; }
.seg-text-3 { color: #9c27b0; }

/* Hotpink flash when a segment is clicked (canvas, table row, or text span) */
.seg-text-flash {
    background-color: hotpink !important;
    color: black !important;
    transition: background-color 0.15s ease;
}

/* Issues banner */
#issues-banner {
    margin-bottom: 2px;
}

.issues-container {
    background: var(--bg-input);
    border: 1px solid var(--warning);
    border-radius: 4px;
    margin-bottom: 8px;
    overflow: hidden;
}

.issues-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: rgba(243, 156, 18, 0.12);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-weight: 600;
    color: var(--warning);
}

.issues-icon {
    font-size: 14px;
}

.issues-title {
    color: var(--warning);
}

.issue-card {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
}

.issue-card:last-child {
    border-bottom: none;
}

.issue-message {
    font-size: 12px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.issue-context {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-primary);
    padding: 3px 6px;
    border-radius: 2px;
    margin-bottom: 6px;
    white-space: pre-wrap;
    word-break: break-all;
}

.issue-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-fix {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.btn-fix:hover {
    background: var(--accent-hover);
}

.btn-dismiss {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}

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

/* Export checkbox label */
.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
}

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

.issue-info-label {
    font-size: 11px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Placeholder text */
.placeholder-text {
    color: var(--text-secondary);
    font-size: 13px;
    text-align: center;
    padding: 40px 20px;
}

/* Upload row */
.upload-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

#file-input {
    font-size: 11px;
    color: var(--text-secondary);
    max-width: 180px;
}

/* Parcel selector bar (shown after multi-parcel PDF upload) */
.parcel-selector-bar {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
    padding: 4px 0 2px;
}

.parcel-label {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.parcel-btn {
    opacity: 0.7;
}

.parcel-btn.active {
    opacity: 1;
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

#upload-result {
    flex-basis: 100%;
    padding: 2px 0;
}

/* HTMX indicator (hidden — replaced by parse-overlay) */
.htmx-indicator {
    display: none;
}

/* Loading overlay for AI operations */
.loading-overlay {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 30, 30, 0.92);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    border-radius: 4px;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
}

/* Animated parsing dots */
.parsing-dot {
    opacity: 0;
    animation: dotFade 1.4s ease-in-out infinite;
}
.parsing-dot:nth-child(2) { animation-delay: 0.2s; }
.parsing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotFade {
    0%, 60%, 100% { opacity: 0; }
    30% { opacity: 1; }
}

/* Points table specifics */
.points-table td {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Responsive: tablet */
@media (max-width: 900px) {
    .app-layout {
        flex-direction: column;
        height: auto;
    }

    main {
        height: auto;
        min-height: calc(100vh - 45px);
    }

    .panel-left,
    .panel-right {
        flex: none;
        min-width: 0;
        width: 100%;
    }

    .panel-left {
        min-height: 300px;
    }

    .panel-right {
        min-height: 400px;
    }
}

/* Responsive: phone */
@media (max-width: 600px) {
    header {
        padding: 8px 12px;
    }

    main {
        padding: 6px;
    }

    .controls-row {
        flex-wrap: wrap;
        gap: 6px;
        padding: 6px 8px;
    }

    .tab {
        padding: 6px 10px;
        font-size: 12px;
    }

    .engine-info {
        font-size: 11px;
    }

    .panel-left {
        min-height: 220px;
    }

    .issue-actions {
        flex-wrap: wrap;
    }
}