/* P63 · Session Diff UI Styles */

/* ── Modal overlay ─────────────────────────────────────────────────────────── */

.sdiff-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 11000;
    background: rgba(0, 0, 0, 0.62);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 32px 16px 16px;
    opacity: 0;
    transition: opacity 0.2s ease;
    overflow-y: auto;
}

.sdiff-modal-overlay.sdiff-modal-open {
    opacity: 1;
}

.sdiff-modal-box {
    background: var(--vc-bg, #1a1a2e);
    border: 1px solid var(--vc-border, rgba(150, 145, 175, 0.2));
    border-radius: 10px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.55);
    width: min(860px, 96vw);
    max-width: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ── Modal header ───────────────────────────────────────────────────────────── */

.sdiff-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--vc-border, rgba(150, 145, 175, 0.12));
    background: rgba(255, 255, 255, 0.02);
    flex-shrink: 0;
}

.sdiff-modal-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--ip-text, #e0e0e0);
}

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

.sdiff-export-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--vc-border, rgba(150, 145, 175, 0.2));
    border-radius: 5px;
    color: var(--ip-text-secondary, #ccc);
    cursor: pointer;
    font-size: 11px;
    font-family: inherit;
    padding: 4px 10px;
    transition: background 0.12s, border-color 0.12s;
}

.sdiff-export-btn:hover {
    background: rgba(91, 142, 201, 0.12);
    border-color: rgba(91, 142, 201, 0.4);
    color: var(--ip-accent, #5B8EC9);
}

.sdiff-close-btn {
    background: none;
    border: none;
    color: var(--ip-text-muted);
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    padding: 2px 4px;
    transition: color 0.12s;
}

.sdiff-close-btn:hover { color: var(--ip-text, #e0e0e0); }

/* ── Auto-open note (regulatory watcher) ────────────────────────────────────── */

.sdiff-auto-note {
    background: rgba(59, 130, 246, 0.1);
    border-bottom: 1px solid rgba(59, 130, 246, 0.25);
    color: #93c5fd;
    font-size: 11px;
    padding: 8px 18px;
}

/* ── Session meta bar ────────────────────────────────────────────────────────── */

.sdiff-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-bottom: 1px solid var(--vc-border, rgba(150, 145, 175, 0.1));
    flex-wrap: wrap;
}

.sdiff-meta-col {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 180px;
}

.sdiff-meta-badge {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 1px 6px;
    border-radius: 3px;
    width: fit-content;
}

.sdiff-badge-prior {
    background: rgba(107, 114, 128, 0.25);
    color: #9ca3af;
}

.sdiff-badge-current {
    background: rgba(91, 142, 201, 0.2);
    color: var(--ip-accent, #5B8EC9);
}

.sdiff-meta-date {
    font-size: 11px;
    font-weight: 600;
    color: var(--ip-text, #e0e0e0);
}

.sdiff-meta-goal {
    font-size: 10px;
    color: var(--ip-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sdiff-arrow {
    color: var(--ip-text-muted);
    flex-shrink: 0;
}

/* ── Summary chip bar ────────────────────────────────────────────────────────── */

.sdiff-summary-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-bottom: 1px solid var(--vc-border, rgba(150, 145, 175, 0.1));
    flex-wrap: wrap;
}

.sdiff-summary-chip {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    border: 1px solid transparent;
}

.sdiff-chip-addition {
    background: rgba(34, 197, 94, 0.12);
    color: #86efac;
    border-color: rgba(34, 197, 94, 0.25);
}

.sdiff-chip-removal {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.22);
}

.sdiff-chip-change {
    background: rgba(245, 158, 11, 0.1);
    color: #fcd34d;
    border-color: rgba(245, 158, 11, 0.22);
}

.sdiff-chip-neutral {
    background: rgba(107, 114, 128, 0.12);
    color: #9ca3af;
    border-color: rgba(107, 114, 128, 0.2);
}

/* ── Filter bar ──────────────────────────────────────────────────────────────── */

.sdiff-filter-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-bottom: 1px solid var(--vc-border, rgba(150, 145, 175, 0.1));
    flex-wrap: wrap;
    background: rgba(255, 255, 255, 0.01);
}

.sdiff-filter-label {
    font-size: 10px;
    color: var(--ip-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 2px;
}

.sdiff-filter-btn {
    background: transparent;
    border: 1px solid var(--vc-border, rgba(150, 145, 175, 0.18));
    border-radius: 4px;
    color: var(--ip-text-muted);
    cursor: pointer;
    font-size: 10px;
    font-family: inherit;
    padding: 3px 8px;
    transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.sdiff-filter-btn:hover {
    background: rgba(91, 142, 201, 0.08);
    color: var(--ip-text, #e0e0e0);
    border-color: rgba(91, 142, 201, 0.3);
}

.sdiff-filter-btn.sdiff-filter-active {
    background: rgba(91, 142, 201, 0.18);
    color: var(--ip-accent, #5B8EC9);
    border-color: rgba(91, 142, 201, 0.4);
    font-weight: 600;
}

/* ── Items container ─────────────────────────────────────────────────────────── */

.sdiff-items-container {
    overflow-y: auto;
    max-height: 52vh;
    padding: 8px 0 16px;
}

/* ── Group ───────────────────────────────────────────────────────────────────── */

.sdiff-group {
    margin-bottom: 4px;
}

.sdiff-group-header {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 6px 18px 4px;
    border-bottom: 1px solid var(--vc-border, rgba(150, 145, 175, 0.08));
}

.sdiff-group-addition { color: #86efac; }
.sdiff-group-removal  { color: #fca5a5; }
.sdiff-group-change   { color: #fcd34d; }
.sdiff-group-neutral  { color: #9ca3af; }

/* ── Item ────────────────────────────────────────────────────────────────────── */

.sdiff-item {
    padding: 10px 18px;
    border-bottom: 1px solid var(--vc-border, rgba(150, 145, 175, 0.06));
    transition: background 0.1s;
}

.sdiff-item:hover { background: rgba(255, 255, 255, 0.02); }

.sdiff-item-addition { border-left: 3px solid rgba(34, 197, 94, 0.5);  }
.sdiff-item-removal  { border-left: 3px solid rgba(239, 68, 68, 0.5);  }
.sdiff-item-change   { border-left: 3px solid rgba(245, 158, 11, 0.5); }
.sdiff-item-neutral  { border-left: 3px solid rgba(107, 114, 128, 0.3); }

.sdiff-item-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.sdiff-cat-badge {
    font-size: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 1px 5px;
    border-radius: 3px;
    flex-shrink: 0;
}

.sdiff-cat-authority {
    background: rgba(139, 92, 246, 0.2);
    color: #c4b5fd;
}

.sdiff-cat-conclusion {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
}

.sdiff-item-title {
    font-size: 11px;
    font-weight: 500;
    color: var(--ip-text, #e0e0e0);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.sdiff-item-rationale {
    font-size: 10px;
    color: var(--ip-text-muted);
    line-height: 1.5;
    margin-bottom: 4px;
}

/* ── Text diff blocks (changes / additions / removals with body) ─────────────── */

.sdiff-text-diff {
    margin-top: 4px;
}

.sdiff-old-text,
.sdiff-new-text {
    font-size: 10px;
    font-family: 'Consolas', 'Monaco', monospace;
    line-height: 1.5;
    padding: 5px 8px;
    border-radius: 3px;
    margin: 2px 0;
}

.sdiff-old-text {
    background: rgba(239, 68, 68, 0.08);
    border-left: 3px solid rgba(239, 68, 68, 0.4);
    color: #fca5a5;
    text-decoration: line-through;
    text-decoration-color: rgba(239, 68, 68, 0.5);
}

.sdiff-new-text {
    background: rgba(34, 197, 94, 0.08);
    border-left: 3px solid rgba(34, 197, 94, 0.4);
    color: #86efac;
}

.sdiff-diff-label {
    font-style: normal;
    font-weight: 700;
    margin-right: 4px;
    text-decoration: none;
}

/* ── Error / empty states ────────────────────────────────────────────────────── */

.sdiff-error {
    padding: 16px 18px;
    color: #fca5a5;
    font-size: 12px;
    background: rgba(239, 68, 68, 0.07);
    border-bottom: 1px solid rgba(239, 68, 68, 0.15);
}

.sdiff-empty {
    padding: 20px 18px;
    color: var(--ip-text-muted);
    font-size: 12px;
    text-align: center;
    line-height: 1.6;
}

/* ── Matter dashboard injection ──────────────────────────────────────────────── */

.sdiff-dashboard-section {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--vc-border, rgba(150, 145, 175, 0.1));
}

.sdiff-section-header {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ip-text-muted);
    cursor: pointer;
    padding: 4px 0;
    user-select: none;
    border-radius: 4px;
    transition: color 0.12s;
}

.sdiff-section-header:hover { color: var(--ip-accent, #5B8EC9); }

.sdiff-chevron {
    margin-left: auto;
    transition: transform 0.18s ease;
}

.sdiff-picker {
    padding: 10px 0 4px;
}

.sdiff-picker-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.sdiff-picker-col {
    flex: 1;
    min-width: 120px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.sdiff-label {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ip-text-muted);
}

.sdiff-select {
    font-size: 11px;
    padding: 4px 6px;
    background: var(--vc-bg2, #1a1a2e);
    border: 1px solid var(--vc-border, rgba(150, 145, 175, 0.2));
    border-radius: 5px;
    color: var(--ip-text-secondary, #ccc);
    cursor: pointer;
    font-family: inherit;
    width: 100%;
    max-width: 100%;
}

.sdiff-select:focus {
    outline: none;
    border-color: var(--ip-accent, #5B8EC9);
}

.sdiff-run-btn {
    background: var(--ip-accent, #5B8EC9);
    border: none;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    font-weight: 600;
    padding: 5px 14px;
    width: 100%;
    transition: opacity 0.12s;
}

.sdiff-run-btn:hover { opacity: 0.88; }