/* =========================================================================
   Reachy Blocks - Modern dev-tool stylesheet
   - Neutral grayscale base, single orange accent.
   - Inspired by Linear / Vercel / Stripe: a credible dev-tool aesthetic
     that doesn't fight Blockly's playful blocks.
   - All visual tokens go through CSS variables so theming stays consistent.
   ========================================================================= */

:root {
    /* ---------- Surface ---------- */
    --bg:                #0A0B0D;   /* page */
    --panel:             #131418;   /* primary surface */
    --panel-elevated:    #1B1D22;   /* hovered / elevated cards */
    --panel-input:       #0E0F12;   /* deeper recessed bg for inputs */
    --border:            #26282E;
    --border-strong:     #34373F;

    /* ---------- Text ---------- */
    --text:              #E8E9EB;
    --text-secondary:    #9298A0;
    --text-muted:        #60656E;

    /* ---------- Brand / accent ---------- */
    --accent:            #FF6B35;   /* keep Pollen-coral */
    --accent-hover:      #FF8557;
    --accent-dim:        rgba(255, 107, 53, 0.12);
    --accent-ring:       rgba(255, 107, 53, 0.35);

    /* ---------- Semantic ---------- */
    --success:           #10B981;
    --success-dim:       rgba(16, 185, 129, 0.14);
    --danger:            #EF4444;
    --danger-dim:        rgba(239, 68, 68, 0.14);
    --warning:           #F59E0B;

    /* ---------- Typography ---------- */
    --font-sans:         'Inter', system-ui, -apple-system, sans-serif;
    --font-mono:         ui-monospace, 'SF Mono', Menlo, Monaco, monospace;
    --text-xs:           11px;
    --text-sm:           12px;
    --text-base:         13px;
    --text-md:           14px;
    --text-lg:           16px;
    --text-xl:           20px;
    --text-display:      24px;

    /* ---------- Spacing scale (multiples of 4) ---------- */
    --s-1: 4px;
    --s-2: 8px;
    --s-3: 12px;
    --s-4: 16px;
    --s-5: 20px;
    --s-6: 24px;
    --s-8: 32px;

    /* ---------- Radius ---------- */
    --r-sm: 4px;
    --r:    8px;
    --r-lg: 12px;
    --r-xl: 16px;

    /* ---------- Shadows ---------- */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow:    0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);

    /* ---------- Motion ---------- */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --t-fast: 120ms;
    --t-med:  200ms;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: var(--text-md);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;   /* layout sizes itself; no body scroll */
}

a { color: var(--accent); text-decoration: none; }

/* =========================================================================
   Buttons
   ========================================================================= */

.btn {
    height: 36px;
    padding: 0 14px;
    border: 1px solid transparent;
    border-radius: var(--r);
    background: var(--panel-elevated);
    color: var(--text);
    font: 600 var(--text-base) / 1 var(--font-sans);
    cursor: pointer;
    transition: background var(--t-fast) var(--ease),
                border-color var(--t-fast) var(--ease),
                opacity var(--t-fast) var(--ease);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s-2);
    user-select: none;
}
.btn:hover:not(:disabled) { background: var(--border); }
.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-ring);
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-secondary {
    background: var(--panel-elevated);
    color: var(--text);
    border-color: var(--border);
}

.btn-danger {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-danger:hover:not(:disabled) {
    color: var(--danger);
    border-color: var(--danger);
    background: var(--danger-dim);
}

.btn-run {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}
.btn-run:hover:not(:disabled) { background: #0FA974; border-color: #0FA974; }

.btn-stop {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-stop:not(:disabled):hover {
    color: var(--danger);
    border-color: var(--danger);
}

.btn-icon {
    height: 32px;
    width: 32px;
    padding: 0;
    border-radius: var(--r);
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    font: 400 16px / 1 var(--font-sans);
    cursor: pointer;
    transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-icon:hover { color: var(--text); border-color: var(--border-strong); }

/* AI Generate modal. */
.aigen-modal-card {
    max-width: 580px;
    max-height: 88vh;
    overflow: hidden;
    gap: 0;
    padding: 0;
}
.aigen-modal-card > h3 { padding: var(--s-5) var(--s-5) 0; }
.aigen-modal-card > .settings-blurb { padding: 0 var(--s-5); }
.aigen-textarea {
    margin: var(--s-3) var(--s-5) 0;
    padding: 12px;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-size: var(--text-md);
    font-family: var(--font-sans);
    line-height: 1.5;
    min-height: 86px;
    max-height: 200px;
    resize: vertical;
    transition: border-color var(--t-fast) var(--ease);
}
.aigen-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}
.aigen-status {
    padding: 0 var(--s-5);
    margin-top: var(--s-2);
    min-height: 18px;
}

.aigen-preview {
    margin: var(--s-3) var(--s-5) 0;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: var(--s-3) var(--s-4);
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
    overflow-y: auto;
    max-height: 30vh;
}
.aigen-preview-head {
    font: 600 11px / 1 var(--font-sans);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.aigen-preview-summary {
    color: var(--text);
    font-size: var(--text-md);
    line-height: 1.5;
    font-family: var(--font-mono);
    word-break: break-word;
}
.aigen-preview-details summary {
    color: var(--accent);
    font-size: var(--text-sm);
    cursor: pointer;
    user-select: none;
}
.aigen-preview-json {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: var(--s-3);
    margin-top: var(--s-2);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.4;
    max-height: 220px;
    overflow: auto;
    white-space: pre;
}
.aigen-preview-meta {
    color: var(--text-muted);
    font-size: var(--text-sm);
    font-family: var(--font-mono);
}

.aigen-footer {
    display: flex;
    gap: var(--s-2);
    padding: var(--s-3) var(--s-5) var(--s-4);
    border-top: 1px solid var(--border);
    margin-top: var(--s-3);
    background: var(--panel);
    flex-wrap: wrap;
}
.aigen-footer .btn { flex: 1; min-width: 110px; }

/* Examples button in header + its dropdown menu. */
.examples-wrap {
    position: relative;
    display: inline-flex;
}

.btn-examples {
    height: 30px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: var(--r);
    background: var(--panel-elevated);
    color: var(--text);
    font: 600 var(--text-sm) / 1 var(--font-sans);
    cursor: pointer;
    transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.btn-examples:hover { background: var(--border); border-color: var(--border-strong); }

/* Small "beta" pill inside the Build with AI button. */
.beta-pill {
    display: inline-block;
    padding: 2px 6px;
    margin-left: 4px;
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
    border-radius: 999px;
    font: 700 9px / 1 var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    vertical-align: middle;
    transform: translateY(-0.5px);
}

.examples-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 280px;
    background: var(--panel);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
    padding: 4px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    z-index: 80;
    animation: examples-fade var(--t-fast) var(--ease);
}
@keyframes examples-fade {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.examples-menu-item {
    text-align: left;
    background: transparent;
    color: var(--text);
    border: 0;
    padding: 10px 12px;
    border-radius: var(--r-sm);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 2px;
    transition: background var(--t-fast) var(--ease);
}
.examples-menu-item:hover { background: var(--panel-elevated); }

.examples-menu-name {
    font: 600 var(--text-md) / 1.2 var(--font-sans);
    color: var(--text);
    letter-spacing: -0.005em;
}
.examples-menu-desc {
    font: 400 var(--text-sm) / 1.4 var(--font-sans);
    color: var(--text-muted);
}

.btn-logout {
    height: 30px;
    padding: 0 12px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: var(--r);
    font: 500 var(--text-sm) / 1 var(--font-sans);
    cursor: pointer;
    transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.btn-logout:hover { color: var(--text-secondary); border-color: var(--border-strong); }

.btn-hf {
    background: #FFD21E;
    color: #0A0B0D;
    border: none;
    padding: 12px 24px;
    border-radius: var(--r);
    font-size: var(--text-md);
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--s-2);
    transition: transform var(--t-fast) var(--ease), filter var(--t-fast) var(--ease);
}
.btn-hf:hover { filter: brightness(1.05); }

/* =========================================================================
   Header
   ========================================================================= */

.header {
    height: 52px;
    padding: 0 var(--s-4);
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    min-width: 0;
}

.logo img {
    width: 28px;
    height: 28px;
    border-radius: var(--r-sm);
}

.logo-text {
    font: 700 var(--text-md) / 1 var(--font-sans);
    color: var(--text);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.logo-text span {
    color: var(--text-muted);
    font-weight: 400;
    margin-left: var(--s-2);
    font-size: var(--text-sm);
}

.user-section {
    display: flex;
    align-items: center;
    gap: var(--s-2);
}

.user-badge {
    height: 30px;
    display: inline-flex;
    align-items: center;
    padding: 0 12px;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r);
    font: 500 var(--text-sm) / 1 var(--font-sans);
    color: var(--text-secondary);
}

/* =========================================================================
   Login view (shown before HF auth)
   ========================================================================= */

.login-view {
    height: 100vh;
    height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--s-5);
    background:
        radial-gradient(circle at 20% 0%, rgba(255,107,53,0.08), transparent 50%),
        radial-gradient(circle at 80% 100%, rgba(16,185,129,0.05), transparent 50%),
        var(--bg);
}

.login-card {
    background: var(--panel);
    border: 1px solid var(--border);
    padding: var(--s-8);
    border-radius: var(--r-xl);
    text-align: center;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    width: 64px;
    height: 64px;
    margin-bottom: var(--s-5);
    border-radius: var(--r-lg);
}

.login-card h2 {
    color: var(--text);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--s-2);
    letter-spacing: -0.02em;
}

.login-card p {
    color: var(--text-secondary);
    font-size: var(--text-md);
    line-height: 1.55;
    margin-bottom: var(--s-6);
}

/* =========================================================================
   Main 2-panel layout - workspace + stage
   ========================================================================= */

.rb-container {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--s-3);
    padding: var(--s-3);
    height: calc(100vh - 52px);
    height: calc(100dvh - 52px);
    background: var(--bg);
}

.rb-workspace {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    position: relative;
    min-height: 0;
    box-shadow: var(--shadow-sm);
    display: flex;     /* sidebar + blockly canvas */
}

#blocklyDiv {
    position: relative;
    flex: 1;
    height: 100%;
    min-width: 0;
}

/* =========================================================================
   Category pills (Scratch 2.0+ style) - rendered as an HTML overlay at
   the top-left of #blocklyDiv. Sits above Blockly's flat flyout, giving
   the visual feel of ONE palette panel: pills row at top, blocks under.
   Width matches the flyout (260px) so pills + flyout read as one column.
   ========================================================================= */

.rb-pills {
    position: absolute;
    top: 0;
    left: 0;
    width: 260px;
    box-sizing: border-box;
    padding: 10px 10px 8px 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    background: var(--panel-elevated);
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    z-index: 10;     /* above the flyout SVG */
}

.rb-pill {
    height: 26px;
    padding: 0 10px 0 8px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: var(--panel);
    color: var(--text-secondary);
    font: 600 11px / 1 var(--font-sans);
    cursor: pointer;
    transition: background var(--t-fast) var(--ease),
                color      var(--t-fast) var(--ease),
                border-color var(--t-fast) var(--ease);
}
.rb-pill:hover {
    border-color: var(--cat-color, var(--border-strong));
    color: var(--text);
}
.rb-pill.selected {
    background: var(--cat-color, var(--accent));
    color: #fff;
    border-color: transparent;
}

.rb-pill-bead {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--cat-color, var(--accent));
    flex-shrink: 0;
}
.rb-pill.selected .rb-pill-bead { background: #fff; }

.rb-pill-label { white-space: nowrap; }

.rb-stage {
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
    overflow-y: auto;
    min-height: 0;
    padding-right: 2px;   /* sit clear of scrollbar */
}

/* Custom thin scrollbar */
.rb-stage::-webkit-scrollbar { width: 6px; }
.rb-stage::-webkit-scrollbar-track { background: transparent; }
.rb-stage::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}
.rb-stage::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* =========================================================================
   Stage - camera, status, controls
   ========================================================================= */

.stage-video-wrap {
    position: relative;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.stage-video-wrap video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background:
        radial-gradient(circle at center, rgba(255,107,53,0.04), transparent 60%),
        var(--panel-input);
    display: none;     /* shown only while streaming */
}
.stage-video-wrap.streaming video { display: block; }

/* 3D simulation viewport - fills the camera tile when no robot streaming. */
.sim-container {
    position: absolute;
    inset: 0;
    background: var(--panel-input);
    overflow: hidden;
}
.stage-video-wrap.streaming .sim-container { display: none; }

.sim-container canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
    cursor: grab;
}
.sim-container canvas:active { cursor: grabbing; }

/* Browser-compat warning bar (shown only if features are missing). */
.compat-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--warning);
    color: #1a1a1a;
    padding: 10px 16px;
    font: 600 var(--text-base) / 1.4 var(--font-sans);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.compat-bar-dismiss {
    background: transparent;
    border: 0;
    color: #1a1a1a;
    font-size: 20px;
    cursor: pointer;
    line-height: 1;
    padding: 0 8px;
    opacity: 0.7;
}
.compat-bar-dismiss:hover { opacity: 1; }

/* First-visit welcome card - floating bottom-right. */
.welcome-banner {
    position: fixed;
    right: var(--s-4);
    bottom: var(--s-4);
    width: 320px;
    background: var(--panel);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    padding: var(--s-4);
    z-index: 90;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
    animation: welcome-rise var(--t-med) var(--ease);
}
@keyframes welcome-rise {
    from { transform: translateY(12px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}
.welcome-title {
    font: 700 var(--text-lg) / 1.2 var(--font-sans);
    color: var(--text);
    letter-spacing: -0.01em;
}
.welcome-body {
    font: 400 var(--text-md) / 1.5 var(--font-sans);
    color: var(--text-secondary);
}
.welcome-body strong { color: var(--text); font-weight: 600; }
.welcome-dismiss { align-self: flex-end; }

/* Sim loading overlay - shown while STL meshes download on first visit. */
.sim-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--s-3);
    background: var(--panel-input);
    z-index: 3;
    pointer-events: none;
}

.sim-loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: rb-spin 0.9s linear infinite;
}

@keyframes rb-spin {
    to { transform: rotate(360deg); }
}

.sim-loading-text {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* Reset-view button - bottom-right of the stage tile, only when sim visible. */
.sim-reset-btn {
    position: absolute;
    right: 8px;
    bottom: 8px;
    width: 28px;
    height: 28px;
    border-radius: var(--r);
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
    z-index: 4;
    backdrop-filter: blur(6px);
}
.sim-reset-btn:hover { color: var(--text); border-color: var(--border-strong); }
.stage-video-wrap.streaming .sim-reset-btn { display: none; }

.stage-overlay-top {
    position: absolute;
    inset: 0 0 auto 0;
    padding: var(--s-3);
    background: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--s-2);
}

.connection-badge {
    height: 26px;
    display: inline-flex;
    align-items: center;
    gap: var(--s-2);
    padding: 0 10px;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(8px);
    border-radius: 999px;
    font: 500 var(--text-sm) / 1 var(--font-sans);
    color: var(--text);
}

.status-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: background var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}
.status-indicator.connected {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}
.status-indicator.connecting {
    background: var(--warning);
    animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.45; }
}

.robot-name {
    height: 26px;
    display: inline-flex;
    align-items: center;
    padding: 0 10px;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(8px);
    border-radius: 999px;
    font: 500 var(--text-sm) / 1 var(--font-sans);
    color: var(--text);
}

.stage-controls,
.stage-runrow {
    display: flex;
    gap: var(--s-2);
}

.stage-controls .btn,
.stage-runrow .btn {
    flex: 1;
    min-width: 0;
}

.btn-run, .btn-stop {
    height: 44px;          /* slightly taller - primary call-to-action */
    font-size: var(--text-md);
}

/* =========================================================================
   Stage sections (run status, robot picker)
   ========================================================================= */

.stage-section {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: var(--s-3) var(--s-4);
}

.stage-section-header {
    font: 600 11px / 1 var(--font-sans);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--s-2);
    display: flex;
    align-items: center;
    gap: 6px;
}
.stage-section-header .stage-section-sub {
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text-muted);
    background: var(--panel-input);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 999px;
    font-size: 10px;
}

.stage-section-note {
    margin-top: var(--s-2);
    color: var(--text-muted);
    font-size: var(--text-sm);
    line-height: 1.45;
}

/* Push Run Status to the bottom of the stage column. */
.stage-section-runstatus {
    margin-top: auto;
}

/* "AI in use" summary card - shows current chat / listen / speak
   service + model so the user always knows what's about to run. */
.run-models {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: var(--s-2) var(--s-3);
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.run-models-title {
    font: 700 11px / 1 var(--font-sans);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.run-models-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.run-models-list li {
    display: grid;
    grid-template-columns: 18px 50px 1fr auto;
    align-items: baseline;
    gap: 8px;
    font: 500 var(--text-sm) / 1.4 var(--font-sans);
    color: var(--text-secondary);
}
.run-models-icon {
    font-size: 13px;
    text-align: center;
}
.run-models-label {
    color: var(--text);
    font-weight: 600;
}
.run-models-provider {
    color: var(--text-secondary);
}
.run-models-model {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    text-align: right;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

/* Inline warning banner shown above Run Status when the program uses
   blocks (askAI / say / listen) whose required API key isn't set. */
.run-warning {
    background: color-mix(in srgb, #F59E0B 14%, var(--panel));
    border: 1px solid color-mix(in srgb, #F59E0B 45%, var(--border));
    border-radius: var(--r);
    padding: var(--s-3);
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
}
.run-warning-head {
    display: flex;
    align-items: center;
    gap: 8px;
}
.run-warning-icon {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #F59E0B;
    color: #1B1D22;
    font: 800 12px / 18px var(--font-sans);
    text-align: center;
    flex-shrink: 0;
}
.run-warning-title {
    color: #FCD34D;
    font: 700 var(--text-base) / 1.3 var(--font-sans);
}
.run-warning-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.run-warning-list li {
    position: relative;
    padding-left: 14px;
    color: var(--text-secondary);
    font: 500 var(--text-sm) / 1.45 var(--font-sans);
}
.run-warning-list li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #F59E0B;
}
.run-warning-item-label {
    color: var(--text);
    font-weight: 700;
}
.run-warning-item-detail {
    color: var(--text-secondary);
}
.run-warning-btn {
    align-self: flex-start;
    margin-top: 2px;
    height: 28px;
    padding: 0 12px;
    border-radius: var(--r-sm);
    background: #F59E0B;
    color: #1B1D22;
    border: 0;
    font: 700 var(--text-sm) / 1 var(--font-sans);
    cursor: pointer;
    white-space: nowrap;
}
.run-warning-btn:hover { filter: brightness(1.1); }

.run-status-text {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.45;
    word-break: break-word;
    font-family: var(--font-mono);
}

.robot-list {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
}

.robot-card {
    padding: var(--s-3) var(--s-3);
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r);
    cursor: pointer;
    transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.robot-card:hover { background: var(--panel-elevated); border-color: var(--border-strong); }
.robot-card.selected {
    border-color: var(--accent);
    background: var(--accent-dim);
}

.robot-card .name {
    font-weight: 600;
    font-size: var(--text-base);
    color: var(--text);
}

.robot-card .id {
    font-size: var(--text-xs);
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-top: 2px;
}

/* =========================================================================
   Modals (Settings, Share)
   ========================================================================= */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(8, 9, 11, 0.6);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: var(--s-4);
    animation: modalFade var(--t-med) var(--ease);
}
@keyframes modalFade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.modal-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    padding: var(--s-6);
    max-width: 460px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
    box-shadow: var(--shadow-lg);
    animation: modalRise var(--t-med) var(--ease);
}
@keyframes modalRise {
    from { transform: translateY(8px); opacity: 0; }
    to   { transform: translateY(0);   opacity: 1; }
}

.modal-card h3 {
    color: var(--text);
    font-size: var(--text-lg);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0;
}

.settings-label {
    display: block;
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin: 0 0 6px;
}

.settings-input {
    display: block;
    width: 100%;
    height: 38px;
    padding: 0 12px;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-size: var(--text-md);
    font-family: var(--font-mono);
    transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.settings-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}

/* Wider Settings modal - two sections now (AI + TTS provider). */
.settings-modal-card {
    max-width: 540px;
    max-height: 86vh;
    padding: 0;
    overflow: hidden;     /* inner sections scroll, header/footer sticky */
    gap: 0;
}

.settings-modal-card h3 {
    padding: var(--s-4) var(--s-5) 0;
}

.settings-blurb {
    padding: 0 var(--s-5);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: 1.5;
}

/* Scrollable content region. Header (h3 + blurb) and footer (buttons) sit
   outside this so they're always visible while the form scrolls. */
.settings-body {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: var(--s-4) var(--s-5);
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
}

.settings-section {
    background: var(--panel-input);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    padding: var(--s-4);
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
}

.settings-section-title {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: var(--s-1);
}
.settings-section-title-main {
    font: 700 var(--text-lg) / 1.2 var(--font-sans);
    color: var(--text);
    letter-spacing: -0.015em;
}
.settings-section-sub {
    display: block;
    color: var(--text-muted);
    font-weight: 400;
    font-size: var(--text-sm);
    letter-spacing: 0;
}

.settings-label-sub {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 10px;
    text-transform: none;
    letter-spacing: 0;
    margin-left: 4px;
}

/* A label + control pair, vertically stacked. */
.settings-field { display: flex; flex-direction: column; }

.settings-info {
    background: var(--panel);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--r);
    padding: var(--s-3);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: 1.55;
}
.settings-info a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.settings-info a:hover { color: var(--accent-hover); }
.settings-info code {
    background: var(--panel-elevated);
    padding: 1px 5px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--text);
}

.settings-select {
    display: block;
    width: 100%;
    height: 38px;
    padding: 0 36px 0 12px;
    background-color: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-size: var(--text-md);
    font-family: var(--font-sans);
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%),
        linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
    background-position: right 16px top 17px, right 11px top 17px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}
.settings-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}
.settings-select option {
    background: var(--panel);
    color: var(--text);
}

.settings-footer {
    flex: 0 0 auto;
    display: flex;
    gap: var(--s-2);
    padding: var(--s-3) var(--s-5) var(--s-4);
    border-top: 1px solid var(--border);
    background: var(--panel);
}
.settings-footer .btn { flex: 1; }
.settings-footer .btn-secondary.btn-close { flex: 0 0 auto; padding: 0 var(--s-4); }

#settingsStatus { padding: 0 var(--s-5) var(--s-1); margin-top: var(--s-1); }

.share-textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-size: var(--text-sm);
    font-family: var(--font-mono);
    min-height: 110px;
    max-height: 240px;
    resize: vertical;
    line-height: 1.5;
    transition: border-color var(--t-fast) var(--ease);
}
.share-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}

/* =========================================================================
   Utilities
   ========================================================================= */

.hidden { display: none !important; }

/* =========================================================================
   Blockly theme overrides - pull the workspace into our visual world
   ========================================================================= */

.blocklyMainBackground {
    fill: var(--panel) !important;
    stroke: var(--border) !important;
    stroke-width: 0 !important;
}

/* We use a flat flyoutToolbox (no category UI), so any leftover
   toolbox container Blockly emits should be hidden. CSS belt-and-braces. */
.blocklyToolboxDiv {
    display: none !important;
}

/* Style the always-open flyout as a permanent panel - a distinct lighter
   strip between the sidebar and the workspace, à la Scratch 1.4. */
.blocklyFlyout .blocklyFlyoutBackground {
    fill: var(--panel-elevated) !important;
    fill-opacity: 1 !important;
    stroke: var(--border-strong) !important;
    stroke-width: 0 !important;
}

/* Width clipping for wide flyout blocks is handled by Blockly itself
   once flyout.getWidth() is locked in JS (see initBlockly). No CSS
   overrides on .blocklyFlyout - they interact poorly with SVG. */

/* Per-category color tokens - used by .rb-pill (bead + selected state)
   and any future styling that needs the matching hue. */
.rb-cat-motion    { --cat-color: hsl(216, 90%, 60%); }
.rb-cat-sound     { --cat-color: hsl(330, 80%, 62%); }
.rb-cat-ai        { --cat-color: hsl(265, 75%, 65%); }
.rb-cat-sensing   { --cat-color: hsl(190, 75%, 55%); }
.rb-cat-control   { --cat-color: hsl( 30, 90%, 58%); }
.rb-cat-math      { --cat-color: hsl(160, 70%, 50%); }
.rb-cat-text      { --cat-color: hsl( 50, 90%, 55%); }
.rb-cat-variables { --cat-color: hsl(  5, 80%, 60%); }
.rb-cat-functions { --cat-color: hsl(290, 70%, 65%); }

/* (duplicate flyout-bg rule removed - see earlier .blocklyFlyout block) */
.blocklyFlyoutScrollbar .blocklyScrollbarHandle {
    fill: var(--border-strong) !important;
}

/* Block text */
.blocklyText {
    fill: #fff;
    font-family: var(--font-sans) !important;
}

/* Trashcan (Blockly's built-in - we keep this one because it has
   drag-drop-to-delete behavior tied to Blockly internals). Bump
   the default visibility so it matches our custom controls. */
.blocklyTrash > image {
    opacity: 0.7;
    transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.45));
}
.blocklyTrash:hover > image {
    opacity: 1;
    transform: scale(1.06);
}

/* Custom zoom controls — small floating group bottom-right of workspace. */
.rb-zoom-controls {
    position: absolute;
    right: 12px;
    bottom: 14px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 3px;
    background: rgba(19, 20, 24, 0.85);
    border: 1px solid var(--border-strong);
    border-radius: var(--r);
    backdrop-filter: blur(6px);
    box-shadow: var(--shadow);
    z-index: 4;
}

.rb-zoom-btn {
    width: 30px;
    height: 30px;
    background: transparent;
    border: 0;
    border-radius: var(--r-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
    padding: 0;
}
.rb-zoom-btn:hover { background: var(--panel-elevated); color: var(--text); }
.rb-zoom-btn:active { background: var(--border); }
.rb-zoom-btn svg { display: block; }

/* Trash variant - shifts to danger tint on hover so the destructive
   action telegraphs itself before click. */
.rb-zoom-btn-danger:hover {
    background: var(--danger-dim);
    color: var(--danger);
}

/* Workspace scrollbars */
.blocklyScrollbarHandle {
    fill: var(--border) !important;
}

/* =========================================================================
   Responsive - narrow viewports stack stage above workspace
   ========================================================================= */

@media (max-width: 820px) {
    .rb-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: auto;
        min-height: 100vh;
        min-height: 100dvh;
    }
    .rb-stage  { order: -1; max-height: 50vh; }
    .rb-workspace { min-height: 60vh; }

    .header { padding: 0 var(--s-3); }
    .logo-text span { display: none; }
}

/* ============================================================
   Voice loop additions (step 2)
   Talk button, conversation transcript.
   ============================================================ */

.btn-talk {
    width: 100%;
    font-size: var(--text-md);
    padding: 10px 14px;
    letter-spacing: 0.02em;
}

.stage-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.convo-clear-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: var(--text-xs);
    padding: 2px 8px;
    border-radius: 6px;
    cursor: pointer;
    text-transform: lowercase;
    letter-spacing: 0.04em;
}
.convo-clear-btn:hover {
    color: var(--text-secondary);
    border-color: var(--border-strong);
    background: var(--panel-elevated);
}

.convo-list {
    max-height: 280px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 10px;
    background: var(--panel-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: var(--text-base);
    line-height: 1.45;
}

.convo-empty {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    padding: 6px 0;
}
.convo-empty strong {
    color: var(--text-secondary);
    font-style: normal;
}

.convo-row {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 8px 10px;
    border-radius: 6px;
    background: var(--panel);
    border-left: 3px solid transparent;
}
.convo-user     { border-left-color: var(--accent); }
.convo-assistant{ border-left-color: var(--success); }

.convo-role {
    text-transform: uppercase;
    font-size: var(--text-xs);
    color: var(--text-muted);
    letter-spacing: 0.08em;
    font-weight: 600;
}
.convo-user .convo-role     { color: var(--accent); }
.convo-assistant .convo-role{ color: var(--success); }

.convo-content {
    color: var(--text);
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Empty-state message inside the robot picker. */
.robot-list-empty {
    color: var(--text-muted);
    font-size: var(--text-base);
    line-height: 1.55;
    padding: 8px 10px;
    background: var(--panel-input);
    border: 1px dashed var(--border);
    border-radius: 6px;
}
.robot-list-empty strong {
    color: var(--text-secondary);
}
#btnRefreshRobots:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================================
   Layout reset for the voice-only fork.
   The original 2-column grid (workspace 1fr + stage 380px) loses
   its left column once Blockly is gone, so the stage auto-places
   into the empty 1fr column. Single-column flex, centered,
   body-level scrolling.
   ============================================================ */
html, body {
    overflow: visible;          /* re-enable page scroll */
    height: auto;
    min-height: 100%;
}

.rb-container {
    display: flex;
    justify-content: center;
    grid-template-columns: none; /* defang the leftover grid rule */
    height: auto;
    min-height: calc(100vh - 52px);
    min-height: calc(100dvh - 52px);
}

.rb-stage {
    flex: 0 1 560px;
    width: 100%;
    max-width: 100%;
    overflow-y: visible;         /* let the page scroll, not just the aside */
    min-height: 0;
}

@media (max-width: 640px) {
    .rb-container {
        padding: var(--s-2);
    }
}