/* ============================================================
   LNG GraphRAG — Phase 2 shell redesign
   Pipeline rail + topbar + Ask-as-chat + graph viz.
   Additive: overrides the legacy .sidebar/.header/.stats-bar shell.
   Tab-content internals still styled by app.css.
   ============================================================ */

.app {
    display: flex;
    min-height: 100vh;
}

/* ---------- Pipeline rail ---------- */
.rail {
    width: 232px;
    flex-shrink: 0;
    background: #191919;
    border-right: 1px solid #333;
    display: flex;
    flex-direction: column;
    transition: width 0.22s ease, transform 0.22s ease;
    overflow: hidden;
}
.rail.collapsed { width: 0; border-right: none; }

.rail-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 18px 14px;
    font-weight: 700;
    color: var(--accent-bright);
    font-size: 1.05rem;
    white-space: nowrap;
}
.rail-brand .dot { font-size: 1.2rem; }

.rail-nav {
    flex: 1;
    padding: 6px 10px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.rail-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 11px 12px;
    border: none;
    border-radius: 9px;
    background: transparent;
    color: #b0b0b0;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s, color 0.15s;
    position: relative;
}
.rail-item:hover { background: #262626; color: #f0f0f0; }
.rail-item.active { background: rgba(254, 174, 2, 0.12); color: var(--accent-bright); }
.rail-item .ri-ico { width: 20px; text-align: center; font-size: 1.05rem; flex-shrink: 0; }
.rail-item .ri-label { flex: 1; white-space: nowrap; }
.rail-item .ri-count {
    min-width: 20px;
    padding: 1px 7px;
    border-radius: 20px;
    background: #333;
    color: #cfcfcf;
    font-size: 0.72rem;
    font-weight: 700;
    text-align: center;
}
.rail-item .ri-count:empty { display: none; }
.rail-item .ri-count.warn { background: rgba(254, 174, 2, 0.2); color: var(--accent-bright); }
.rail-item.hero { margin-top: 4px; }
.rail-item.hero .ri-ico { color: var(--accent-bright); }
.rail-item.hero::after {
    content: "★";
    margin-left: auto;
    color: var(--accent-gold);
    font-size: 0.7rem;
    opacity: 0.7;
}
.rail-item.hero.active::after { opacity: 1; }

.rail-foot {
    border-top: 1px solid #2c2c2c;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.rail-sync {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: none;
    color: #7a7a7a;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 7px;
}
.rail-sync:hover { background: #262626; color: #ccc; }
.rail-sync .sync-ico { transition: transform 0.5s ease; }
.rail-sync.spinning .sync-ico { transform: rotate(360deg); }
.rail-user {
    position: relative;
    padding: 6px 8px;
}
.rail-user-btn {
    display: flex;
    align-items: center;
    gap: 9px;
    width: 100%;
    background: transparent;
    border: none;
    color: #ccc;
    cursor: pointer;
    font-size: 0.86rem;
    padding: 4px 0;
}
.rail-user-btn .avatar {
    width: 26px; height: 26px;
    border-radius: 50%;
    background: var(--accent-brown);
    color: var(--accent-bright);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.8rem; flex-shrink: 0;
}
.rail-user-btn .uname { flex: 1; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rail-user-btn .caret { color: #777; font-size: 0.7rem; }

.user-menu {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 8px; right: 8px;
    background: #2a2a2a;
    border: 1px solid #3d3d3d;
    border-radius: 10px;
    box-shadow: var(--kit-shadow, 0 8px 30px rgba(0,0,0,0.45));
    padding: 6px;
    display: none;
    z-index: 200;
}
.user-menu.open { display: block; }
.user-menu a, .user-menu button {
    display: flex; align-items: center; gap: 9px;
    width: 100%;
    padding: 9px 10px;
    border: none; background: transparent;
    color: #ddd; font-size: 0.86rem; text-align: left;
    text-decoration: none; border-radius: 7px; cursor: pointer;
}
.user-menu a:hover, .user-menu button:hover { background: #363636; }
.user-menu .divider { height: 1px; background: #3d3d3d; margin: 4px 2px; }
.user-menu .danger { color: #ff8a8a; }

/* ---------- Work area + topbar ---------- */
.work { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
    display: flex;
    align-items: center;
    gap: 14px;
    height: 56px;
    padding: 0 20px;
    border-bottom: 1px solid #2c2c2c;
    background: rgba(25, 25, 25, 0.85);
    backdrop-filter: blur(6px);
    position: sticky;
    top: 0;
    z-index: 100;
}
.rail-toggle {
    width: 38px; height: 38px;
    border: none; border-radius: 8px;
    background: transparent; color: #bbb;
    font-size: 1.2rem; cursor: pointer;
}
.rail-toggle:hover { background: #262626; color: var(--accent-bright); }
.crumb { font-weight: 600; color: #e6e6e6; font-size: 0.95rem; white-space: nowrap; }
.crumb .crumb-sub { color: #777; font-weight: 400; }

.omni {
    margin: 0 auto 0 12px;
    display: flex; align-items: center; gap: 10px;
    min-width: 260px; max-width: 460px; flex: 1;
    padding: 8px 12px;
    background: #202020;
    border: 1px solid #383838;
    border-radius: 10px;
    color: #8a8a8a;
    font-size: 0.9rem;
    cursor: text;
}
.omni:hover { border-color: #4a4a4a; }
.omni .omni-ico { color: #777; }
.omni .omni-hint { flex: 1; text-align: left; }
.omni kbd {
    font-family: inherit;
    background: #333; color: #bbb;
    border-radius: 5px; padding: 2px 6px;
    font-size: 0.72rem; border: 1px solid #444;
}
.topuser { flex-shrink: 0; }

.stage { flex: 1; padding: 24px 28px; overflow-y: auto; }
.stage .container { max-width: none; padding: 0; }

/* ---------- Command palette (⌘K) ---------- */
.omni-overlay {
    position: fixed; inset: 0; z-index: 9997;
    background: rgba(0,0,0,0.5);
    display: none; align-items: flex-start; justify-content: center;
    padding-top: 14vh;
}
.omni-overlay.open { display: flex; }
.omni-panel {
    width: min(560px, 92vw);
    background: #242424;
    border: 1px solid #3d3d3d;
    border-radius: 14px;
    box-shadow: var(--kit-shadow, 0 8px 30px rgba(0,0,0,0.5));
    overflow: hidden;
    animation: kit-pop 0.16s ease;
}
.omni-panel input {
    width: 100%; border: none; outline: none;
    background: transparent; color: #f0f0f0;
    padding: 18px 20px; font-size: 1.05rem;
    border-bottom: 1px solid #3a3a3a;
}
.omni-actions { padding: 8px; }
.omni-action {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 12px; border-radius: 9px;
    color: #ddd; cursor: pointer; font-size: 0.92rem;
}
.omni-action:hover, .omni-action.sel { background: #333; }
.omni-action .oa-ico { width: 22px; text-align: center; }
.omni-action .oa-sub { margin-left: auto; color: #777; font-size: 0.8rem; }

/* ---------- Ask: chat surface ---------- */
.ask-wrap { display: flex; flex-direction: column; height: calc(100vh - 56px - 48px); max-width: 1100px; margin: 0 auto; }
.ask-head { margin-bottom: 12px; }
.ask-head h2 { margin: 0 0 4px; }
.ask-head p { color: #9a9a9a; margin: 0; font-size: 0.9rem; }

.ask-body { flex: 1; display: flex; gap: 18px; min-height: 0; }
.ask-thread {
    flex: 1;
    overflow-y: auto;
    padding: 4px 4px 12px;
    display: flex; flex-direction: column; gap: 16px;
    min-width: 0;
}
.ask-graph-pane {
    width: 340px; flex-shrink: 0;
    border: 1px solid #303030; border-radius: 12px;
    background: #171717;
    display: none;
    flex-direction: column;
    overflow: hidden;
}
.ask-graph-pane.show { display: flex; }
.ask-graph-pane .agp-head {
    padding: 10px 14px; border-bottom: 1px solid #2c2c2c;
    font-size: 0.8rem; color: #9a9a9a; text-transform: uppercase; letter-spacing: 0.06em;
}
.ask-graph-canvas { flex: 1; min-height: 260px; }

.msg { display: flex; flex-direction: column; gap: 6px; }
.msg-you { align-items: flex-end; }
.msg-you .bubble {
    background: var(--accent-brown);
    color: #fff7e0;
    border-radius: 14px 14px 4px 14px;
    padding: 10px 15px;
    max-width: 78%;
    font-size: 0.95rem;
}
.msg-ai .bubble {
    background: #202020;
    border: 1px solid #303030;
    border-left: 3px solid var(--accent-gold);
    border-radius: 4px 14px 14px 14px;
    padding: 14px 16px;
    max-width: 88%;
    color: #dcdcdc;
    line-height: 1.7;
}
.msg-ai .bubble .answer { white-space: pre-wrap; }
.msg-meta { font-size: 0.75rem; color: #777; }

.cites { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.cite-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px; border-radius: 20px;
    background: #2a2a2a; border: 1px solid #3a3a3a;
    color: #cfcfcf; font-size: 0.78rem; cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.cite-chip:hover { border-color: var(--accent-gold); background: #333; }
.cite-chip .cc-score { font-family: monospace; color: var(--accent-gold); }
.cite-chip .cc-via { opacity: 0.7; }

.ask-composer {
    margin-top: 14px;
    display: flex; gap: 10px; align-items: flex-end;
    background: #202020; border: 1px solid #383838; border-radius: 12px;
    padding: 10px 12px;
}
.ask-composer textarea {
    flex: 1; resize: none; border: none; outline: none; background: transparent;
    color: #f0f0f0; font-size: 0.98rem; font-family: inherit; line-height: 1.5;
    max-height: 140px; min-height: 24px;
}
.ask-send {
    flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px;
    background: var(--accent-gold); color: #1a1200; border: none;
    font-size: 1.1rem; cursor: pointer; font-weight: 700;
}
.ask-send:hover { background: var(--accent-bright); }
.ask-send:disabled { opacity: 0.5; cursor: default; }
.ask-dev { margin-top: 8px; }
.ask-dev summary { color: #777; font-size: 0.82rem; cursor: pointer; }

.ask-empty { margin: auto; text-align: center; color: #666; }
.ask-empty .big { font-size: 2.4rem; margin-bottom: 10px; opacity: 0.5; }
.ask-suggest { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 16px; }
.ask-suggest button {
    padding: 8px 14px; border-radius: 20px; border: 1px solid #383838;
    background: #202020; color: #bbb; cursor: pointer; font-size: 0.85rem;
}
.ask-suggest button:hover { border-color: var(--accent-gold); color: #eee; }

/* ---------- Chunk seek button (Library) ---------- */
.chunk-seek {
    border: none;
    background: var(--accent-gold);
    color: #1a1200;
    border-radius: 5px;
    font-size: 0.72rem;
    line-height: 1;
    padding: 3px 6px;
    margin-right: 8px;
    cursor: pointer;
    vertical-align: middle;
    transition: background 0.15s;
}
.chunk-seek:hover { background: var(--accent-bright); }

/* YT IFrame API replaces our div with an iframe (same id) — make it fill the wrap */
#transcriptionYoutubePlayer, #transcriptionYoutubeWrap iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

/* thinking dots */
.thinking { display: inline-flex; gap: 4px; }
.thinking span {
    width: 6px; height: 6px; border-radius: 50%; background: var(--accent-gold);
    animation: thinkPulse 1s infinite ease-in-out;
}
.thinking span:nth-child(2) { animation-delay: 0.15s; }
.thinking span:nth-child(3) { animation-delay: 0.3s; }
@keyframes thinkPulse { 0%,60%,100% { opacity: 0.3; } 30% { opacity: 1; } }

/* Drawer backdrop — only ever visible while the rail is an overlay (mobile). */
.rail-backdrop {
    display: none;
    position: fixed; inset: 0; z-index: 290;
    background: rgba(0, 0, 0, 0.55);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    /* Rail becomes an off-canvas drawer: full height, above content, slides in. */
    .rail {
        position: fixed;
        top: 0; left: 0;
        z-index: 300;
        height: 100dvh;
        width: min(84vw, 260px);
        transform: translateX(0);
        overflow-y: auto;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
    }
    .rail.collapsed {
        transform: translateX(-100%);
        width: min(84vw, 260px);
        border-right: 1px solid #333;
    }
    .rail-backdrop.show { display: block; }
    body.rail-open { overflow: hidden; }

    /* Topbar: hamburger + crumb stay, search collapses to its icon. */
    .topbar { gap: 8px; padding: 0 10px; }
    .omni { min-width: 0; max-width: none; margin-left: auto; padding: 8px 10px; }
    .omni .omni-hint, .omni kbd { display: none; }
    .crumb { font-size: 0.9rem; }

    .stage { padding: 16px 12px; }
    .ask-graph-pane.show { display: none; }
    .ask-body { flex-direction: column; }
    .ask-wrap { height: calc(100dvh - 56px - 32px); }
    .msg-you .bubble, .msg-ai .bubble { max-width: 100%; }
}

@media (max-width: 520px) {
    .stage { padding: 12px 8px; }
    .topbar { height: 52px; }
    .ask-composer { padding: 8px 10px; }
    /* Touch targets stay ≥44px on phones. */
    .rail-item, .rail-sync, .rail-user-btn { min-height: 44px; }
}

/* The rail is always docked and open on wide screens, whatever JS last set. */
@media (min-width: 861px) {
    .rail-backdrop { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
    .rail, .omni-panel, .rail-sync .sync-ico, .thinking span { animation: none; transition: none; }
}