/* ═══════════════════════════════════════════════════════════
 * V.A.T.S. Pro — multi-phase research panel
 * Full-screen overlay with intro → run timeline → final.
 * Pro-tier feature introduced 2026-04-11.
 * ═══════════════════════════════════════════════════════════ */

.vats-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(6px);
    z-index: 5000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.22s ease;
    overflow-y: auto;
}

.vats-overlay.open { opacity: 1; }

.vats-panel {
    background: linear-gradient(180deg, var(--panel) 0%, var(--bg) 100%);
    border: 1px solid var(--green-dim);
    border-radius: 16px;
    max-width: 860px;
    width: 100%;
    max-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.75), 0 0 56px rgba(var(--green-rgb), 0.1);
    transform: translateY(20px) scale(0.97);
    transition: transform 0.3s cubic-bezier(0.22, 1.2, 0.36, 1);
    overflow: hidden;
    position: relative;
}

.vats-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--green) 30%, var(--amber) 70%, transparent);
    z-index: 2;
}

.vats-overlay.open .vats-panel {
    transform: translateY(0) scale(1);
}

.vats-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 22px 14px;
    border-bottom: 1px solid rgba(var(--green-rgb), 0.12);
    flex-shrink: 0;
}

.vats-panel-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.vats-panel-subtitle {
    font-size: 11px;
    color: var(--muted);
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0.02em;
    font-style: italic;
}

.vats-panel-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 20px;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.18s;
}

.vats-panel-close:hover {
    background: rgba(var(--red-rgb), 0.2);
    color: var(--red);
    border-color: rgba(var(--red-rgb), 0.45);
    transform: rotate(90deg);
}

.vats-panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 22px 22px;
    scrollbar-width: thin;
    scrollbar-color: rgba(var(--green-rgb), 0.3) transparent;
}

.vats-panel-body::-webkit-scrollbar { width: 6px; }
.vats-panel-body::-webkit-scrollbar-thumb {
    background: rgba(var(--green-rgb), 0.3);
    border-radius: 3px;
}

/* ── Intro screen ── */

.vats-intro-lead {
    font-size: 14px;
    color: var(--muted);
    margin: 0 0 16px;
    line-height: 1.5;
}

.vats-phases-preview {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 24px;
}

.vats-phase-preview {
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 12px 10px;
    text-align: center;
    position: relative;
}

.vats-phase-preview:not(:last-child)::after {
    content: '→';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--green-dim);
    font-size: 14px;
    z-index: 1;
}

.vats-phase-preview-icon {
    font-size: 22px;
    line-height: 1;
    margin-bottom: 4px;
}

.vats-phase-preview-name {
    font-size: 11px;
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 2px;
}

.vats-phase-preview-desc {
    font-size: 9px;
    color: var(--muted);
    line-height: 1.3;
}

.vats-label {
    display: block;
    font-size: 11px;
    color: var(--amber);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
    font-weight: 600;
}

/* Query textarea + ✨ Improve button stacked as a unit */
.vats-query-wrap {
    position: relative;
}

.vats-query-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 12px 14px 48px 14px;
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    min-height: 100px;
    box-sizing: border-box;
    transition: border-color 0.15s;
}

.vats-query-input:disabled {
    opacity: 0.6;
}

.vats-query-input:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(var(--green-rgb), 0.1);
}

.vats-improve-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: linear-gradient(135deg, rgba(var(--amber-rgb), 0.18), rgba(255, 213, 107, 0.08));
    border: 1px solid rgba(var(--amber-rgb), 0.4);
    color: var(--amber);
    font-family: inherit;
    font-size: 11px;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.15s;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    z-index: 2;
}

.vats-improve-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, rgba(var(--amber-rgb), 0.32), rgba(255, 213, 107, 0.18));
    border-color: var(--amber);
    box-shadow: 0 4px 14px rgba(var(--amber-rgb), 0.25);
    transform: translateY(-1px);
}

.vats-improve-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Inline "why it's better" + "suggested persona" cards shown under
 * the V.A.T.S. query textarea after ✨ Улучшить. */
.vats-improve-extras {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.vats-improve-explain {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(var(--amber-rgb), 0.06);
    border: 1px solid rgba(var(--amber-rgb), 0.25);
    border-radius: 10px;
}

.vats-improve-explain-icon {
    font-size: 14px;
    flex-shrink: 0;
    line-height: 1.5;
}

.vats-improve-explain-text {
    font-size: 12px;
    color: var(--text);
    opacity: 0.85;
    line-height: 1.5;
    font-style: italic;
}

.vats-improve-persona {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: rgba(var(--green-rgb), 0.06);
    border: 1px solid rgba(var(--green-rgb), 0.3);
    border-radius: 10px;
}

.vats-improve-persona-icon {
    font-size: 20px;
    line-height: 1;
    flex-shrink: 0;
}

.vats-improve-persona-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.vats-improve-persona-body strong {
    font-size: 12px;
    color: var(--text);
    font-weight: 700;
}

.vats-improve-persona-tag {
    font-size: 10px;
    color: var(--muted);
    line-height: 1.3;
}

.vats-improve-persona-btn {
    background: var(--green);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    padding: 7px 12px;
    font-family: inherit;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.vats-improve-persona-btn:hover {
    background: var(--green-dim);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--green-rgb), 0.3);
}

.vats-mode-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 16px 0 20px;
}

.vats-mode-opt {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s;
}

.vats-mode-opt:hover {
    background: rgba(var(--green-rgb), 0.04);
    border-color: var(--green-dim);
}

.vats-mode-opt.active {
    background: linear-gradient(180deg, rgba(var(--green-rgb), 0.12), rgba(var(--green-rgb), 0.03));
    border-color: var(--green);
    box-shadow: 0 0 14px rgba(var(--green-rgb), 0.15);
}

.vats-mode-opt input[type="radio"] {
    display: none;
}

.vats-mode-icon {
    font-size: 22px;
    line-height: 1;
    flex-shrink: 0;
}

.vats-mode-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.vats-mode-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}

.vats-mode-desc {
    font-size: 11px;
    color: var(--muted);
    line-height: 1.4;
}

.vats-intro-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ── Shared buttons ── */

.vats-btn {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--line);
    color: var(--text);
    padding: 10px 18px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.vats-btn:hover {
    background: rgba(var(--green-rgb), 0.08);
    border-color: var(--green-dim);
}

.vats-btn-cancel {
    color: var(--muted);
}

.vats-btn-start,
.vats-btn-primary,
.vats-btn-approve {
    background: linear-gradient(135deg, var(--green), var(--green-dim));
    color: var(--bg);
    border-color: var(--green);
    box-shadow: 0 4px 14px rgba(var(--green-rgb), 0.25);
}

.vats-btn-start:hover,
.vats-btn-primary:hover,
.vats-btn-approve:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(var(--green-rgb), 0.4);
}

.vats-btn-edit {
    background: rgba(var(--amber-rgb), 0.1);
    border-color: rgba(var(--amber-rgb), 0.35);
    color: var(--amber);
}

.vats-btn-edit:hover {
    background: rgba(var(--amber-rgb), 0.2);
    border-color: var(--amber);
}

.vats-btn-regen {
    background: rgba(0, 200, 255, 0.08);
    border-color: rgba(0, 200, 255, 0.3);
    color: #6ad7ff;
}

.vats-btn-regen:hover {
    background: rgba(0, 200, 255, 0.18);
}

.vats-btn-save {
    background: var(--green);
    color: var(--bg);
    border-color: var(--green);
}

/* ── Run state (timeline) ── */

.vats-run-header {
    padding: 12px 16px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin-bottom: 18px;
}

.vats-run-query {
    font-size: 13px;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 8px;
}

.vats-run-label {
    color: var(--amber);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    margin-right: 4px;
}

.vats-run-meta {
    display: flex;
    gap: 12px;
    font-size: 11px;
    color: var(--muted);
    flex-wrap: wrap;
}

.vats-status-pill {
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.vats-status-running {
    background: rgba(var(--amber-rgb), 0.18);
    color: var(--amber);
    border: 1px solid rgba(var(--amber-rgb), 0.4);
}

.vats-status-ready {
    background: rgba(0, 200, 255, 0.15);
    color: #6ad7ff;
    border: 1px solid rgba(0, 200, 255, 0.4);
}

.vats-status-completed {
    background: rgba(var(--green-rgb), 0.15);
    color: var(--green);
    border: 1px solid rgba(var(--green-rgb), 0.4);
}

.vats-status-failed,
.vats-status-cancelled {
    background: rgba(var(--red-rgb), 0.12);
    color: var(--red);
    border: 1px solid rgba(var(--red-rgb), 0.35);
}

.vats-timeline {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.vats-phase {
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.vats-phase-running {
    border-color: var(--amber);
    box-shadow: 0 0 18px rgba(var(--amber-rgb), 0.15);
    animation: vatsPhasePulse 2s ease-in-out infinite;
}

@keyframes vatsPhasePulse {
    0%, 100% { box-shadow: 0 0 18px rgba(var(--amber-rgb), 0.15); }
    50%      { box-shadow: 0 0 28px rgba(var(--amber-rgb), 0.3); }
}

.vats-phase-ready {
    border-color: rgba(0, 200, 255, 0.5);
    box-shadow: 0 0 16px rgba(0, 200, 255, 0.12);
}

.vats-phase-approved {
    border-color: rgba(var(--green-rgb), 0.3);
}

.vats-phase-pending {
    opacity: 0.5;
}

.vats-phase-head {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(var(--green-rgb), 0.03);
    border-bottom: 1px dashed var(--line);
}

.vats-phase-index {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(var(--green-rgb), 0.15);
    color: var(--green);
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.vats-phase-icon {
    font-size: 18px;
    line-height: 1;
    flex-shrink: 0;
}

.vats-phase-name {
    flex: 1;
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.vats-state-pill {
    font-size: 9px;
    padding: 3px 8px;
    border-radius: 999px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.vats-state-pill.running {
    background: rgba(var(--amber-rgb), 0.18);
    color: var(--amber);
    border: 1px solid rgba(var(--amber-rgb), 0.4);
}

.vats-state-pill.ready {
    background: rgba(0, 200, 255, 0.15);
    color: #6ad7ff;
    border: 1px solid rgba(0, 200, 255, 0.4);
}

.vats-state-pill.approved {
    background: rgba(var(--green-rgb), 0.12);
    color: var(--green);
    border: 1px solid rgba(var(--green-rgb), 0.35);
}

.vats-state-pill.pending {
    background: rgba(var(--green-rgb), 0.04);
    color: var(--muted);
    border: 1px solid var(--line);
}

.vats-phase-body {
    padding: 14px 16px 16px;
}

.vats-phase-markdown {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text);
}

.vats-phase-markdown h1,
.vats-phase-markdown h2,
.vats-phase-markdown h3 {
    color: var(--green);
    margin: 12px 0 6px;
    font-size: 14px;
}

.vats-phase-markdown ul,
.vats-phase-markdown ol {
    margin: 6px 0;
    padding-left: 20px;
}

.vats-phase-markdown li {
    margin: 3px 0;
}

.vats-phase-markdown code {
    background: rgba(0, 0, 0, 0.4);
    padding: 1px 5px;
    border-radius: 3px;
    font-family: "Share Tech Mono", monospace;
    font-size: 12px;
    color: var(--amber);
}

.vats-phase-cost {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed var(--line);
    font-size: 10px;
    color: var(--muted);
    font-family: "Share Tech Mono", monospace;
}

.vats-phase-actions {
    display: flex;
    gap: 8px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed rgba(var(--green-rgb), 0.15);
    flex-wrap: wrap;
}

.vats-phase-actions .vats-btn {
    padding: 8px 14px;
    font-size: 12px;
}

.vats-phase-actions .vats-btn-approve {
    flex: 1;
    min-width: 140px;
}

/* ── Edit box ── */

.vats-edit-box {
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--amber);
    border-radius: 8px;
    color: var(--text);
    font-family: "Share Tech Mono", monospace;
    font-size: 12px;
    line-height: 1.5;
    padding: 12px;
    min-height: 280px;
    resize: vertical;
    outline: none;
    box-sizing: border-box;
}

.vats-edit-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 10px;
}

/* ── Loading spinner ── */

.vats-loading {
    padding: 30px 16px;
    text-align: center;
}

.vats-loading-spinner {
    display: inline-flex;
    gap: 6px;
    margin-bottom: 10px;
}

.vats-loading-spinner span {
    width: 10px;
    height: 10px;
    background: var(--green);
    border-radius: 50%;
    animation: vatsLoadingDot 1.2s ease-in-out infinite;
}

.vats-loading-spinner span:nth-child(2) { animation-delay: 0.15s; }
.vats-loading-spinner span:nth-child(3) { animation-delay: 0.3s; }

@keyframes vatsLoadingDot {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.7); }
    40% { opacity: 1; transform: scale(1.1); }
}

.vats-loading-label {
    font-size: 12px;
    color: var(--muted);
    font-style: italic;
}

/* ── Bottom bar ── */

.vats-bottom-bar {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px dashed rgba(var(--green-rgb), 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.vats-success {
    flex: 1;
    color: var(--green);
    font-size: 13px;
    font-weight: 600;
}

.vats-error {
    flex: 1;
    color: var(--red);
    font-size: 12px;
    padding: 10px 14px;
    background: rgba(var(--red-rgb), 0.08);
    border: 1px solid rgba(var(--red-rgb), 0.3);
    border-radius: 8px;
}

/* ── Toolbar button tint for V.A.T.S. Pro ── */
.input-toolbar-btn-vats.active,
.input-toolbar-btn-vats:hover {
    border-color: rgba(var(--amber-rgb), 0.45);
    color: var(--amber);
}

/* ── Responsive ── */

@media (max-width: 720px) {
    .vats-phases-preview {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .vats-phases-preview .vats-phase-preview::after {
        display: none;
    }
    .vats-mode-row {
        grid-template-columns: 1fr;
    }
    .vats-panel-body {
        padding: 16px 16px 18px;
    }
    .vats-phase-actions .vats-btn-approve {
        flex-basis: 100%;
    }
}

@media (max-width: 480px) {
    .vats-overlay {
        padding: 0;
        align-items: flex-end;
    }
    .vats-panel {
        max-height: 95vh;
        max-width: 100%;
        border-radius: 16px 16px 0 0;
    }
    .vats-panel-title {
        font-size: 14px;
    }
    .vats-panel-subtitle {
        display: none;
    }
}