/* Voitta RAG Enterprise — Apple-flavoured UI, lifted from voitta-rag's palette. */

:root {
    /* Tell the browser this is a light UI so native controls — scrollbars,
       form widgets, the search-field clear button — render light. The dark
       override below flips it; without this, dark mode keeps white scrollbars. */
    color-scheme: light;

    --color-bg: #f5f5f7;
    --color-bg-elevated: #ffffff;
    --color-bg-hover: #e8e8ed;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-text-tertiary: #aeaeb2;
    /* Alias used throughout the CSS (panels, tree, admin, modal). Defined here
       so those references resolve; tracks the active theme's primary text via
       --color-text-primary, so it flips correctly in dark mode too. */
    --color-text: var(--color-text-primary);
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;
    --color-border: #d2d2d7;
    --color-border-light: #e5e5ea;
    --color-success: #34c759;
    --color-error: #ff3b30;
    --color-warning: #ff9500;

    --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
        "Helvetica Neue", Helvetica, Arial, sans-serif;

    --xs: 4px;
    --sm: 8px;
    --md: 16px;
    --lg: 24px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
    --t: 150ms ease;
}

[data-theme="dark"] {
    color-scheme: dark;

    --color-bg: #1d1d1f;
    --color-bg-elevated: #2c2c2e;
    --color-bg-hover: #3a3a3c;
    --color-text-primary: #f5f5f7;
    --color-text-secondary: #a1a1a6;
    --color-text-tertiary: #636366;
    --color-accent: #0a84ff;
    --color-accent-hover: #409cff;
    --color-border: #3a3a3c;
    --color-border-light: #48484a;
}

* { box-sizing: border-box; }

/* Re-assert the [hidden] attribute against display:flex/grid rules below. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text-primary);
    font: 13px/1.4 var(--font);
    -webkit-font-smoothing: antialiased;
    /* Vertical flex so the main pane fills exactly the remaining viewport
       under the sticky header — lets the folder list scroll internally
       instead of pushing the page below the fold. */
    display: flex;
    flex-direction: column;
}

/* ---------- Header ---------- */

.app-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border-light);
}
.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    max-width: 1600px;
    margin: 0 auto;
}
.logo {
    font-weight: 600;
    font-size: 15px;
    color: var(--color-text-primary);
    text-decoration: none;
}
.header-actions { display: flex; align-items: center; gap: 12px; }

.status-pill {
    display: inline-flex;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 500;
    text-transform: lowercase;
}
.status-pill.connected {
    background: rgba(52, 199, 89, 0.15);
    color: var(--color-success);
}
.status-pill.disconnected {
    background: rgba(255, 59, 48, 0.15);
    color: var(--color-error);
}

/* ---------- Bootstrap loading overlay ---------- */

#boot-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}
#boot-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}
.boot-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: boot-spin 0.7s linear infinite;
}
@keyframes boot-spin {
    to { transform: rotate(360deg); }
}

/* ---------- Layout ---------- */

.app-main {
    /* Fill the height left by the sticky app header so children can claim
       their share of the viewport with min-height:0 + flex:1. Without
       min-height:0 a flex child refuses to shrink below its intrinsic
       content size and the grid below would force the whole page to scroll. */
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--lg);
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    /* Box-sizing safety: padding shouldn't make us overflow. */
    box-sizing: border-box;
}
.browser-container {
    display: flex;
    flex-direction: column;
    gap: var(--md);
    flex: 1;
    min-height: 0;
}
.toolbar {
    display: flex;
    gap: var(--sm);
    align-items: center;
    flex-wrap: wrap;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 8px 12px;
}
.toolbar-group { display: flex; gap: 6px; align-items: center; }
.toolbar-divider {
    width: 1px;
    height: 22px;
    background: var(--color-border);
    margin: 0 4px;
}
.upload-progress {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    min-width: 220px;
    max-width: 480px;
}
.upload-progress-label {
    font-size: 11px;
    color: var(--color-text-secondary);
    white-space: nowrap;
}
.upload-progress-bar {
    flex: 1;
    min-width: 120px;
    height: 6px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}
.upload-progress-fill {
    height: 100%;
    width: 0;
    background: var(--color-accent);
    transition: width 100ms linear;
}
.upload-file-list {
    flex-basis: 100%;
    margin: 4px 0 0;
    padding: 0;
    list-style: none;
    max-height: 140px;
    overflow-y: auto;
    font-size: 11px;
    color: var(--color-text-secondary);
}
.upload-file-list li {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 0;
}
.upload-file-list li .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.upload-file-list li .pct {
    font-variant-numeric: tabular-nums;
    color: var(--color-text-secondary);
    min-width: 36px;
    text-align: right;
}
.upload-file-list li.done .pct,
.upload-file-list li.done .name { color: var(--color-accent); }
.upload-file-list li.failed .pct,
.upload-file-list li.failed .name { color: #c33; }
.browser-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: var(--lg);
    align-items: stretch;
    flex: 1;
    min-height: 0;
    position: relative;
}
/* Active drag-and-drop highlight on the browser pane. Outlines the
   whole grid so it's obvious the drop is being accepted; the
   pointer-events guard keeps child interactivity working during a
   drag (without it, dragover would not bubble correctly). */
.browser-layout.drop-active::after {
    content: "Drop folders or files here";
    position: absolute;
    inset: 0;
    border: 2px dashed var(--accent, #5b8def);
    border-radius: 8px;
    background: rgba(91, 141, 239, 0.08);
    color: var(--accent, #5b8def);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    pointer-events: none;
    z-index: 10;
}


/* Startup banner — shown while the backend warms up (model load / workers).
   A thin accent strip across the top with a small spinner. */
.startup-banner {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 16px; font-size: 13px;
    background: #fff7ed; color: #9a3412;
    border-bottom: 1px solid #fed7aa;
}
.startup-banner .spinner {
    width: 12px; height: 12px; border-radius: 50%;
    border: 2px solid #fdba74; border-top-color: #9a3412;
    animation: voitta-spin 0.8s linear infinite;
    flex: 0 0 auto;
}
@keyframes voitta-spin { to { transform: rotate(360deg); } }

/* YubiKey touch prompt — a centred, pulsing strip across the top. More
   assertive than the startup banner because it demands a physical action.
   Uses an accent gradient so it reads in both light and dark themes. */
.touch-banner {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 10px 16px; font-size: 14px; font-weight: 600;
    color: #fff; background: #2563eb;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
    animation: voitta-touch-pulse 1.1s ease-in-out infinite;
}
.touch-banner .touch-pulse {
    width: 12px; height: 12px; border-radius: 50%;
    background: #fff; flex: 0 0 auto;
    animation: voitta-touch-dot 1.1s ease-in-out infinite;
}
@keyframes voitta-touch-pulse {
    0%, 100% { background: #2563eb; }
    50% { background: #1d4ed8; }
}
@keyframes voitta-touch-dot {
    0%, 100% { opacity: 0.35; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.15); }
}