/* ============================================================
   Structure Viewer — immersive full-viewport layout
   v20260605-sv1
   ============================================================ */

/* ── 1. Break tp-main container constraints for this page ── */
body:has(.sv-root) .tp-main   { max-width: none !important; padding: 0 !important; }
body:has(.sv-root) .tp-shell  { padding: 0 !important; }
body:has(.sv-root) .tp-footer { display: none !important; }

/* ── 2. Root layout ── */
.sv-root {
    --structure-accent:        var(--tp-color-brand-800);
    --structure-accent-ink:    var(--tp-color-brand-900);
    --structure-accent-soft:   var(--tp-color-brand-100);
    --structure-accent-border: var(--tp-color-brand-300);

    display: flex;
    height: calc(100dvh - var(--sv-nav-h, 58px));
    background: var(--sv-viewer-canvas-bg);
    overflow: hidden;
    position: relative;
}

/* ── 3. Canvas (left, fills remaining width) ── */
.sv-canvas {
    flex: 1 1 0;
    min-width: 0;
    position: relative;
    overflow: hidden;
    background: var(--sv-viewer-canvas-bg);
}

#viewport {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

#viewport canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

/* ── 4. Topbar (floating over canvas) ── */
.sv-topbar {
    position: absolute;
    inset: 0 0 auto 0;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 16px;
    background: var(--sv-overlay-bg);
    backdrop-filter: blur(14px) saturate(1.3);
    -webkit-backdrop-filter: blur(14px) saturate(1.3);
    border-bottom: 1px solid var(--sv-overlay-border);
    color: var(--sv-overlay-text);
}

.sv-topbar-left {
    flex-shrink: 0;
}

.sv-back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--sv-overlay-text);
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    opacity: 0.78;
    letter-spacing: 0.01em;
    transition: opacity 0.14s;
    white-space: nowrap;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sv-back-link:hover { opacity: 1; color: var(--sv-overlay-text); text-decoration: none; }

.sv-back-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.sv-topbar-identity {
    display: flex;
    align-items: center;
    gap: 7px;
    flex-wrap: wrap;
    flex: 1;
}

.sv-pdb-code {
    font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--sv-overlay-text);
    letter-spacing: 0.06em;
    background: var(--sv-code-bg);
    border-radius: 4px;
    padding: 2px 7px;
    line-height: 1.6;
}

.sv-meta-pill {
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--sv-overlay-text);
    opacity: 0.78;
    background: var(--sv-btn-bg);
    border-radius: 4px;
    padding: 2px 8px;
    line-height: 1.6;
    letter-spacing: 0.01em;
    white-space: nowrap;
}
.sv-meta-pill--dim { opacity: 0.54; }

/* ── 5. Loading / Legend (overlaid on canvas) ── */
.sv-loading-note {
    display: none;
    position: absolute;
    inset: 0;
    margin: 0;
    z-index: 15;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sv-overlay-text-muted);
    font-size: 0.9rem;
    font-style: italic;
    pointer-events: none;
}

.sv-legend {
    position: absolute;
    bottom: 76px;
    right: 16px;
    z-index: 15;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--sv-overlay-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--sv-overlay-border);
    border-radius: 8px;
}

.sv-legend-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--sv-overlay-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-right: 2px;
}

/* Score tags in legend get dark-friendly treatment */
.sv-legend .tp-score-tag {
    min-width: 48px;
    font-size: 0.74rem;
    padding: 1px 8px;
}

/* ── 6. Floating bottom toolbar ── */
.sv-toolbar {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 3px;
    padding: 5px 8px;
    background: var(--sv-toolbar-bg);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border: 1px solid var(--sv-toolbar-border);
    border-radius: 14px;
    box-shadow: 0 4px 28px rgba(0, 0, 0, 0.22);
    white-space: nowrap;
    max-width: calc(100% - 32px);
}

/* Generic toolbar button */
.sv-tb-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: 30px;
    padding: 0 10px;
    border: none;
    border-radius: 8px;
    background: var(--sv-btn-bg);
    color: var(--sv-overlay-text);
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    letter-spacing: 0.01em;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.13s, color 0.13s, opacity 0.13s;
    appearance: none;
    flex-shrink: 0;
    opacity: 0.88;
}
.sv-tb-btn:hover,
.sv-tb-btn:focus-visible {
    background: var(--sv-btn-hover-bg);
    color: var(--sv-overlay-text);
    opacity: 1;
    text-decoration: none;
    outline: none;
}
.sv-tb-btn:focus-visible { outline: 2px solid var(--sv-btn-active-color); outline-offset: 2px; }
.sv-tb-btn:disabled { opacity: 0.30; cursor: default; pointer-events: none; }

.sv-tb-btn.sv-tb-active,
.sv-spin-btn[aria-pressed="true"] {
    background: var(--sv-btn-active-bg);
    color: var(--sv-btn-active-color);
    opacity: 1;
}

.sv-tb-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    display: block;
}

.sv-tb-label {
    line-height: 1;
}

/* Icon-only buttons (no label) */
.sv-tb-btn:not(:has(.sv-tb-label)) {
    padding: 0 8px;
    min-width: 30px;
    justify-content: center;
}

.sv-download-link { text-decoration: none; }

/* Separator */
.sv-tb-sep {
    width: 1px;
    height: 18px;
    background: var(--sv-sep);
    margin: 0 3px;
    flex-shrink: 0;
}

/* Mode pill group (Cartoon / Surface) */
.sv-mode-group {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    background: var(--sv-btn-bg);
    border-radius: 9px;
}

.sv-mode-btn {
    height: 24px;
    padding: 0 10px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--sv-overlay-text);
    font-size: 0.76rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
    opacity: 0.70;
    white-space: nowrap;
}
.sv-mode-btn:hover { opacity: 0.90; background: var(--sv-btn-hover-bg); }
.sv-mode-btn.is-active {
    background: var(--sv-btn-active-bg);
    color: var(--sv-btn-active-color);
    opacity: 1;
}

/* Structure picker — scrollable pill row for multiple structures */
.sv-structure-picker {
    flex: 1 1 0;
    min-width: 80px;
    overflow-x: auto;
    scrollbar-width: none;
}
.sv-structure-picker::-webkit-scrollbar { display: none; }
.sv-structure-picker .sv-mode-btn { flex-shrink: 0; }

/* ── 7. Sidebar (right panel) ── */
.sv-sidebar {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--tp-color-border-strong);
    background: var(--tp-color-surface-panel);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--tp-color-border-strong) transparent;
}
.sv-sidebar::-webkit-scrollbar { width: 5px; }
.sv-sidebar::-webkit-scrollbar-track { background: transparent; }
.sv-sidebar::-webkit-scrollbar-thumb { background: var(--tp-color-border-strong); border-radius: 4px; }

.sv-sidebar-inner {
    padding: 18px 16px 32px;
    display: flex;
    flex-direction: column;
    gap: 0;
    min-height: 100%;
}

/* Sidebar header */
.sv-sidebar-head {
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--tp-color-border);
}

.sv-sidebar-protein-name {
    margin: 0 0 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--tp-color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sv-sidebar-code {
    margin: 0 0 8px;
    font-size: 1.5rem;
    font-weight: 600;
    font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    color: var(--tp-color-text-primary);
    letter-spacing: 0.05em;
    line-height: 1.2;
}

.sv-sidebar-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.sv-sidebar-meta-tag {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--tp-color-text-secondary);
    background: var(--tp-color-surface-muted);
    border: 1px solid var(--tp-color-border);
    border-radius: 4px;
    padding: 2px 7px;
    white-space: nowrap;
}
.sv-sidebar-meta-tag--dim { opacity: 0.65; }
.sv-sidebar-meta-tag--count {
    color: var(--tp-color-brand-800);
    background: var(--tp-color-brand-050);
    border-color: var(--tp-color-brand-200);
}

.sv-no-pockets {
    margin: 24px 0 0;
    font-size: 0.84rem;
    color: var(--tp-color-text-muted);
    font-style: italic;
    text-align: center;
}

/* Compact pocket card buttons inside sidebar */
.sv-sidebar .pocket-card-actions .btn {
    height: 26px !important;
    min-height: 26px !important;
    padding: 0 10px !important;
    border-radius: 6px !important;
    font-size: 0.74rem !important;
    font-weight: 600 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* ── 8. Mini-section (shared with pocket_cards.html) ── */
.mini-section {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--tp-color-border-soft);
}
.mini-section:first-of-type { margin-top: 0; border-top: none; padding-top: 0; }

.mini-section h3 {
    margin: 0 0 3px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--tp-color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

.table-hint {
    margin: 0 0 8px;
    color: var(--tp-color-text-muted);
    font-size: 0.78rem;
    line-height: 1.5;
}

/* ── 9. Pocket cards (reused from pocket_cards.html) ── */
.pocket-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 7px;
    margin-top: 8px;
}

.pocket-card {
    border: 1px solid var(--tp-color-border-soft);
    border-radius: 10px;
    background: var(--tp-color-surface);
    padding: 10px 12px;
    display: grid;
    gap: 8px;
}

.pocket-card-head {
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.pocket-card-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--structure-accent-ink);
    flex: 1 1 auto;
}

.pocket-card-p2score {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--tp-color-text-muted);
    white-space: nowrap;
}

.pocket-card-reprs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.pocket-repr-btn {
    appearance: none;
    -webkit-appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 6px;
    border: 1px solid var(--tp-color-border);
    border-radius: 7px;
    background: var(--tp-color-surface-soft);
    color: var(--tp-color-text-secondary);
    font-size: 0.76rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.12s, border-color 0.12s, color 0.12s;
    text-align: center;
    line-height: 1.2;
}
.pocket-repr-btn:hover {
    background: var(--tp-color-surface-alt);
    border-color: var(--tp-color-border-strong);
    color: var(--tp-color-text-primary);
}
.pocket-repr-btn[aria-pressed="true"] {
    background: color-mix(in srgb, var(--structure-accent) 12%, var(--tp-color-surface));
    border-color: var(--structure-accent-border);
    color: var(--structure-accent-ink);
}

.pocket-card-actions {
    display: flex;
    gap: 5px;
}
.pocket-card-actions .btn { flex: 1; justify-content: center; }

/* ── 10. Residue sets ── */
.residueset-list {
    padding: 8px 0;
    display: grid;
    gap: 5px;
}
.residueset-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border: 1px solid var(--tp-color-border-soft);
    border-radius: 8px;
    background: var(--tp-color-surface);
}
.residueset-row-info { flex: 1 1 0; min-width: 0; display: grid; gap: 1px; }
.residueset-type {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--tp-color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.residueset-name {
    font-size: 0.8rem;
    color: var(--tp-color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.residueset-row-actions { display: flex; gap: 4px; flex-shrink: 0; }
.residueset-row-actions .btn { font-size: 0.76rem; padding: 4px 8px; }

/* ── 11. Collapsible residue sets ── */
.data-details {
    border: 1px solid var(--tp-color-border);
    border-radius: 10px;
    background: var(--tp-color-surface);
    overflow: hidden;
    margin-top: 8px;
}
.data-details > summary {
    list-style: none;
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 9px 12px;
    color: var(--tp-color-text-secondary);
    font-weight: 500;
    font-size: 0.84rem;
    border-bottom: 1px solid transparent;
    transition: background 0.12s, border-color 0.12s;
}
.data-details > summary:focus,
.data-details > summary:focus-visible { outline: none; box-shadow: none; }
.data-details > summary:hover { background: var(--tp-color-surface-alt); }
.data-details[open] > summary { border-bottom-color: var(--tp-color-border-soft); background: var(--structure-accent-soft); }
.data-details > summary::-webkit-details-marker { display: none; }
.data-details > summary::marker { content: ""; }
.data-details > summary::after {
    content: "";
    width: var(--tp-chevron-size, 7px);
    height: var(--tp-chevron-size, 7px);
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    color: var(--tp-color-text-muted);
    opacity: 0.7;
    margin-left: auto;
}
.data-details[open] > summary::after { transform: rotate(-135deg); }

/* ── 12. Score tags ── */
.tp-score-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 56px;
    border-radius: 999px;
    border: 1px solid transparent;
    padding: 2px 9px;
    font-weight: 500;
    font-size: 0.78rem;
}
.tp-score-tag.high   { color: var(--tp-color-success-ink);  background: var(--tp-color-success-bg);  border-color: var(--tp-color-success-border); }
.tp-score-tag.medium { color: var(--tp-color-warning-ink);  background: var(--tp-color-warning-bg);  border-color: var(--tp-color-warning-border); }
.tp-score-tag.low    { color: var(--tp-color-danger-ink);   background: var(--tp-color-danger-bg);   border-color: var(--tp-color-danger-border); }

/* ── 13. Structure toggle (checkbox pill) ── */
.structure-toggle {
    appearance: none;
    -webkit-appearance: none;
    display: inline-block;
    width: 2.1rem;
    height: 1.18rem;
    border-radius: 999px;
    border: 1px solid var(--tp-color-border-strong);
    background: var(--tp-color-surface-muted);
    position: relative;
    cursor: pointer;
    vertical-align: middle;
    transition: background 0.12s, border-color 0.12s;
}
.structure-toggle::after {
    content: "";
    position: absolute;
    top: 1px;
    left: 1px;
    width: 0.94rem;
    height: 0.94rem;
    border-radius: 50%;
    background: var(--tp-color-surface);
    box-shadow: var(--tp-shadow-xs);
    transition: transform 0.12s;
}
.structure-toggle:checked { background: var(--structure-accent); border-color: var(--structure-accent); }
.structure-toggle:checked::after { transform: translateX(0.9rem); }
.structure-toggle:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--tp-color-border-accent); }

/* ── 14. Residue modal ── */
.residue-modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9000;
    background: rgba(0, 0, 0, 0.50);
    align-items: center;
    justify-content: center;
}
.residue-modal-backdrop.is-open { display: flex; }
.residue-modal-panel {
    background: var(--tp-color-surface);
    border: 1px solid var(--tp-color-border-strong);
    border-radius: 14px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25);
    width: min(480px, calc(100vw - 32px));
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.residue-modal-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--tp-color-border);
}
.residue-modal-head h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--tp-color-text-primary);
    flex: 1;
}
.residue-modal-close { font-size: 1.1rem; line-height: 1; }
.residue-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 16px;
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--tp-color-text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
}
.residue-modal-actions {
    padding: 10px 16px;
    border-top: 1px solid var(--tp-color-border);
    display: flex;
    justify-content: flex-end;
}
body.residue-modal-open { overflow: hidden; }

/* ── 15. Dark mode sidebar overrides ── */
.tp-dark .sv-sidebar { background: var(--tp-color-surface-soft); border-left-color: var(--tp-color-border-strong); }
.tp-dark .pocket-card { background: var(--tp-color-surface); border-color: var(--tp-color-border); }

/* ── 16. Structure picker (custom dropdown — no native select) ── */
.sv-struct-picker {
    position: relative;
    flex-shrink: 0;
}

.sv-struct-picker-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: 30px;
    padding: 0 8px 0 10px;
    border: none;
    border-radius: 8px;
    background: var(--sv-btn-bg);
    color: var(--sv-overlay-text);
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    letter-spacing: 0.01em;
    cursor: pointer;
    opacity: 0.88;
    max-width: min(340px, 42vw);
    white-space: nowrap;
    overflow: hidden;
    transition: background-color 0.13s, opacity 0.13s;
}

.sv-struct-picker-btn:hover,
.sv-struct-picker-btn[aria-expanded="true"] {
    opacity: 1;
    background: var(--sv-btn-hover-bg);
}

.sv-struct-picker-btn:focus-visible {
    opacity: 1;
    outline: 2px solid var(--sv-btn-active-color);
    outline-offset: 2px;
}

.sv-struct-picker-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.sv-struct-picker-chevron {
    width: 10px;
    height: 6px;
    flex-shrink: 0;
    opacity: 0.55;
    transition: transform 0.15s;
}

.sv-struct-picker-btn[aria-expanded="true"] .sv-struct-picker-chevron {
    transform: rotate(180deg);
}

.sv-struct-picker-menu {
    position: fixed;
    /* top / right set dynamically by JS */
    z-index: 200;
    list-style: none;
    margin: 0;
    padding: 4px;
    min-width: 240px;
    max-width: min(420px, 90vw);
    max-height: 320px;
    overflow-y: auto;
    border-radius: 10px;
    background: var(--sv-overlay-bg);
    border: 1px solid var(--sv-overlay-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    scrollbar-width: thin;
}

.sv-struct-picker-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 7px;
    cursor: pointer;
    color: var(--sv-overlay-text);
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.3;
    transition: background 0.1s;
}

.sv-struct-picker-item:hover {
    background: var(--sv-btn-hover-bg);
}

.sv-struct-picker-item.is-active {
    background: var(--sv-btn-active-bg);
    font-weight: 700;
}

.sv-struct-picker-item-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sv-struct-picker-item-res {
    flex-shrink: 0;
    font-size: 0.72rem;
    opacity: 0.5;
    font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
}

/* ── 17. Pocket card label (Site N + internal ID) ── */
.pocket-card-label {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1 1 auto;
    min-width: 0;
}

.pocket-card-id {
    font-size: 0.70rem;
    font-weight: 500;
    color: var(--tp-color-text-muted);
    opacity: 0.72;
    line-height: 1.2;
}
.tp-dark .pocket-repr-btn { background: var(--tp-color-surface-soft); border-color: var(--tp-color-border); color: var(--tp-color-text-secondary); }
.tp-dark .residueset-row { background: var(--tp-color-surface); border-color: var(--tp-color-border); }
.tp-dark .data-details { background: var(--tp-color-surface); border-color: var(--tp-color-border); }
.tp-dark .sv-sidebar-meta-tag { background: var(--tp-color-surface-muted); border-color: var(--tp-color-border); }
.tp-dark .sv-sidebar-meta-tag--count { background: var(--tp-color-brand-050); border-color: var(--tp-color-brand-200); }

/* ── 16. Responsive (narrow: collapse sidebar) ── */
@media (max-width: 720px) {
    .sv-sidebar { display: none; }
    .sv-toolbar { max-width: calc(100vw - 20px); overflow-x: auto; }
}