/* ═══════════════════════════════════════════
   Certus WorkBrain v2 — NEON HIVE: INTERACTIVE EDITION
   ═══════════════════════════════════════════ */

:root {
    --bg: #060608;
    --bg-alt: #0a0c10;
    --surface: #0d1016;
    --surface-glow: #111620;
    --border: #1a2030;
    --border-glow: #2a3550;
    --text: #e8eaf0;
    --text-dim: #7a8298;
    --neon: #39ff14;
    --neon-dim: #1a7a0a;
    --neon-glow: rgba(57, 255, 20, 0.25);
    --neon-pulse: rgba(57, 255, 20, 0.5);
    --cyan: #00f0ff;
    --cyan-glow: rgba(0, 240, 255, 0.2);
    --amber: #ffb800;
    --amber-glow: rgba(255, 184, 0, 0.2);
    --pink: #ff2d95;
    --radius: 14px;
    --radius-sm: 8px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --grid-dot: rgba(57, 255, 20, 0.04);
    --grid-line: rgba(57, 255, 20, 0.02);
}

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

/* ═══ BASE ═══ */
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image: radial-gradient(circle at 1px 1px, var(--grid-dot) 1px, transparent 1px);
    background-size: 32px 32px;
}
body::after {
    content: '';
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background:
        linear-gradient(0deg, var(--bg) 0%, transparent 10%, transparent 90%, var(--bg) 100%),
        radial-gradient(ellipse at 50% 0%, rgba(57, 255, 20, 0.03) 0%, transparent 70%),
        radial-gradient(ellipse at 80% 100%, rgba(0, 240, 255, 0.03) 0%, transparent 70%);
}

/* ═══ NAVIGATION ═══ */
.top-nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 28px; background: rgba(13, 16, 22, 0.9);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
    box-shadow: 0 2px 40px rgba(57, 255, 20, 0.05);
}
.nav-brand { display: flex; align-items: center; gap: 12px; }
.logo {
    font-size: 28px;
    filter: drop-shadow(0 0 8px var(--neon-glow));
    animation: logoPulse 3s ease-in-out infinite;
    cursor: pointer;
    transition: transform 0.2s;
}
.logo:hover { transform: scale(1.2) rotate(10deg); }
.logo:active { transform: scale(0.9); }

@keyframes logoPulse {
    0%, 100% { filter: drop-shadow(0 0 8px var(--neon-glow)); }
    50% { filter: drop-shadow(0 0 20px var(--neon-pulse)); }
}
.brand-text {
    font-weight: 800; font-size: 19px; letter-spacing: -0.3px;
    background: linear-gradient(135deg, var(--neon), var(--cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nav-links { display: flex; gap: 6px; }
.nav-link {
    padding: 9px 18px; border-radius: var(--radius-sm);
    color: var(--text-dim); text-decoration: none;
    font-size: 14px; font-weight: 600; transition: all 0.25s; position: relative;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-link.active {
    background: rgba(57,255,20,0.12); color: var(--neon);
    box-shadow: 0 0 20px rgba(57,255,20,0.1); border: 1px solid rgba(57,255,20,0.2);
}
.nav-right { display: flex; align-items: center; gap: 10px; }

/* Sound toggle */
.sound-toggle {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 50%; width: 36px; height: 36px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; transition: all 0.25s; position: relative;
    color: var(--text-dim);
}
.sound-toggle:hover { border-color: var(--border-glow); color: var(--neon); box-shadow: 0 0 15px var(--neon-glow); }
.sound-toggle.muted { color: var(--pink); }
.sound-toggle.muted::after {
    content: ''; position: absolute; width: 2px; height: 20px;
    background: var(--pink); transform: rotate(-45deg); border-radius: 1px;
}

/* ═══ DASHBOARD ═══ */
.dashboard { max-width: 1280px; margin: 0 auto; padding: 28px; position: relative; z-index: 1; }
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 28px; }
.stat-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px 20px; text-align: center;
    position: relative; overflow: hidden; transition: all 0.3s; backdrop-filter: blur(10px);
}
.stat-card::before {
    content: ''; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, transparent 30%, var(--border-glow) 50%, transparent 70%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity 0.3s;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 60px var(--neon-glow); border-color: var(--border-glow); }
.stat-card:hover::before { opacity: 1; }
.stat-card:active { transform: scale(0.97); }
.stat-value {
    font-size: 38px; font-weight: 800; letter-spacing: -1.5px;
    background: linear-gradient(135deg, var(--neon), #5fff5f);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    text-shadow: 0 0 40px var(--neon-glow); font-variant-numeric: tabular-nums;
    transition: all 0.3s;
}
.stat-value.counting { animation: countUp 0.6s cubic-bezier(0.22, 0.61, 0.36, 1); }
@keyframes countUp {
    from { transform: scale(1.3); filter: blur(2px); }
    to { transform: scale(1); filter: blur(0); }
}
.stat-label { font-size: 11px; color: var(--text-dim); margin-top: 6px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; }
.stat-icon { font-size: 24px; display: block; margin-bottom: 8px; animation: float 3s ease-in-out infinite; }
.stat-card:nth-child(2) .stat-icon { animation-delay: 0.5s; }
.stat-card:nth-child(3) .stat-icon { animation-delay: 1s; }
.stat-card:nth-child(4) .stat-icon { animation-delay: 1.5s; }
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 24px; }
.panel {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px; margin-bottom: 18px;
    position: relative; transition: border-color 0.3s, box-shadow 0.3s;
}
.panel:hover { border-color: var(--border-glow); box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
.panel h2 { font-size: 16px; font-weight: 700; margin-bottom: 18px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.feed-list { max-height: 400px; overflow-y: auto; }
.feed-item {
    padding: 14px; border-bottom: 1px solid rgba(255,255,255,0.04);
    font-size: 14px; transition: all 0.2s; border-radius: 6px; cursor: pointer;
}
.feed-item:hover { background: rgba(255,255,255,0.03); transform: translateX(4px); }
.feed-item:last-child { border-bottom: none; }
.feed-item .item-title { font-weight: 600; line-height: 1.3; }
.feed-item .item-preview { font-size: 12px; color: var(--text-dim); margin-top: 4px; font-style: italic; }
.feed-item .item-meta { font-size: 11px; color: var(--text-dim); margin-top: 3px; }
.feed-item.unread { border-left: 2px solid var(--neon); animation: unreadGlow 2s ease-in-out infinite; }
@keyframes unreadGlow {
    0%, 100% { border-left-color: var(--neon); }
    50% { border-left-color: var(--neon-dim); }
}

.priority-badge {
    font-size: 9px; font-weight: 700; padding: 2px 8px; border-radius: 4px;
    letter-spacing: 0.5px; float: right;
}
.priority-badge.critical { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.priority-badge.high { background: rgba(249,115,22,0.15); color: #f97316; border: 1px solid rgba(249,115,22,0.3); }
.priority-badge.medium { background: rgba(234,179,8,0.15); color: #eab308; border: 1px solid rgba(234,179,8,0.3); }
.priority-badge.low { background: rgba(34,197,94,0.15); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.email-meta { font-size: 11px; color: var(--text-dim); font-weight: 400; margin-left: 8px; }

.search-box { display: flex; gap: 10px; }
.search-box input {
    flex: 1; padding: 14px 18px; background: var(--bg-alt);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); font-size: 14px; font-family: var(--font); transition: all 0.3s;
}
.search-box input:focus { outline: none; border-color: var(--neon-dim); box-shadow: 0 0 20px var(--neon-glow); }
.search-box button, .btn-primary {
    padding: 14px 28px; background: linear-gradient(135deg, var(--neon-dim), #1a8a0a);
    border: 1px solid var(--neon-dim); border-radius: var(--radius-sm);
    color: #fff; font-weight: 700; font-size: 14px; cursor: pointer;
    transition: all 0.25s; text-shadow: 0 1px 2px rgba(0,0,0,0.3); letter-spacing: 0.3px;
    position: relative; overflow: hidden;
}
.search-box button:hover, .btn-primary:hover {
    box-shadow: 0 0 30px var(--neon-glow); transform: translateY(-2px);
}
.search-box button:active, .btn-primary:active { transform: scale(0.96); }

/* Ripple effect */
.ripple {
    position: absolute; border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: scale(0); animation: ripple 0.6s linear; pointer-events: none;
}
@keyframes ripple { to { transform: scale(4); opacity: 0; } }

.search-results { margin-top: 18px; }
.search-hit {
    padding: 18px; background: var(--bg-alt); border: 1px solid var(--border);
    border-radius: var(--radius-sm); margin-bottom: 10px; font-size: 14px;
    transition: all 0.2s; cursor: pointer;
}
.search-hit:hover { border-color: var(--border-glow); box-shadow: 0 0 20px rgba(57,255,20,0.05); transform: translateX(3px); }
.search-hit .hit-source { font-size: 12px; color: var(--neon); margin-bottom: 8px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.search-hit .hit-score {
    font-size: 11px; color: var(--text-dim); float: right;
    background: rgba(57,255,20,0.1); padding: 3px 10px; border-radius: 4px;
}

/* ═══ TOASTS ═══ */
.toast-container {
    position: fixed; bottom: 24px; right: 24px; z-index: 9999;
    display: flex; flex-direction: column-reverse; gap: 10px;
}
.toast {
    padding: 14px 22px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    animation: toastIn 0.3s ease-out, toastOut 0.3s ease-in 2.7s forwards;
    max-width: 380px; box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    display: flex; align-items: center; gap: 10px; cursor: pointer;
}
.toast-success { background: rgba(57,255,20,0.1); border: 1px solid var(--neon-dim); color: var(--neon); }
.toast-error { background: rgba(255,45,149,0.1); border: 1px solid var(--pink); color: var(--pink); }
.toast-info { background: rgba(0,240,255,0.1); border: 1px solid rgba(0,240,255,0.3); color: var(--cyan); }
@keyframes toastIn { from { opacity:0; transform: translateX(40px); } to { opacity:1; transform: translateX(0); } }
@keyframes toastOut { to { opacity:0; transform: translateX(40px); } }

/* ═══ PARTICLES ═══ */
.particle-burst {
    position: fixed; pointer-events: none; z-index: 9998;
}
.particle {
    position: absolute; font-size: 18px;
    animation: particleFly 1s ease-out forwards;
}
@keyframes particleFly {
    0% { transform: translate(0,0) scale(1); opacity: 1; }
    100% { transform: translate(var(--px), var(--py)) scale(0); opacity: 0; }
}

/* ═══ CHAT ═══ */
.chat-body { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
.chat-layout { display: flex; flex: 1; min-height: 0; position: relative; z-index: 1; }

/* Conversation sidebar */
.conv-sidebar {
    width: 260px; background: var(--bg-alt); border-right: 1px solid var(--border);
    display: flex; flex-direction: column; transition: transform 0.3s, width 0.3s; overflow: hidden;
}
.conv-sidebar.collapsed { width: 0; border: none; }
.conv-sidebar-header {
    padding: 16px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.conv-sidebar-header h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); }
.conv-sidebar-header button {
    background: var(--neon-dim); border: none; color: #fff; padding: 6px 14px;
    border-radius: 6px; font-size: 12px; font-weight: 700; cursor: pointer;
    transition: all 0.2s;
}
.conv-sidebar-header button:hover { box-shadow: 0 0 15px var(--neon-glow); }
.conv-list { flex: 1; overflow-y: auto; padding: 8px; }
.conv-item {
    padding: 12px 14px; border-radius: var(--radius-sm); cursor: pointer;
    font-size: 13px; margin-bottom: 4px; transition: all 0.2s;
    display: flex; align-items: center; justify-content: space-between;
    border: 1px solid transparent;
}
.conv-item:hover { background: rgba(255,255,255,0.03); border-color: var(--border); }
.conv-item.active { background: rgba(57,255,20,0.08); border-color: var(--neon-dim); color: var(--neon); }
.conv-item .conv-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.conv-item .conv-date { font-size: 10px; color: var(--text-dim); margin-left: 8px; }
.conv-item .conv-delete {
    opacity: 0; font-size: 14px; cursor: pointer; margin-left: 6px; transition: all 0.2s; color: var(--pink);
}
.conv-item:hover .conv-delete { opacity: 0.7; }
.conv-item .conv-delete:hover { opacity: 1; }

.chat-main {
    flex: 1; display: flex; flex-direction: column; min-width: 0;
    min-height: 0;
    padding: 20px 28px;
}
.chat-header {
    text-align: center; padding: 20px 0 8px; flex-shrink: 0;
}
.chat-header h2 {
    font-size: 22px; margin-bottom: 6px;
    background: linear-gradient(135deg, var(--neon), var(--cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.chat-messages {
    flex: 1; min-height: 0; overflow-y: auto; padding: 20px 0;
    display: flex; flex-direction: column; gap: 14px;
    scroll-behavior: smooth;
}
.chat-msg {
    max-width: 80%; padding: 16px 20px; border-radius: 18px;
    font-size: 14px; line-height: 1.6; position: relative;
    animation: msgIn 0.3s ease-out;
}
@keyframes msgIn { from { opacity:0; transform: translateY(10px); } to { opacity:1; transform: translateY(0); } }
.chat-msg.user {
    align-self: flex-end;
    background: linear-gradient(135deg, rgba(57,255,20,0.12), rgba(57,255,20,0.05));
    border: 1px solid rgba(57,255,20,0.25);
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 20px rgba(57,255,20,0.06);
}
.chat-msg.assistant {
    align-self: flex-start; background: var(--surface);
    border: 1px solid var(--border); border-bottom-left-radius: 4px;
}
.chat-msg.streaming { border-color: var(--neon-dim); }
.chat-msg .msg-content strong {
    display: block; font-size: 11px; color: var(--neon);
    margin-bottom: 6px; text-transform: uppercase; letter-spacing: 1px;
}
.chat-msg .msg-content p { white-space: pre-wrap; word-break: break-word; }

/* Message actions */
.msg-actions {
    display: flex; gap: 6px; margin-top: 8px; opacity: 0; transition: opacity 0.2s;
}
.chat-msg:hover .msg-actions { opacity: 1; }
.msg-actions button {
    background: var(--bg-alt); border: 1px solid var(--border); border-radius: 6px;
    padding: 4px 10px; font-size: 12px; cursor: pointer; transition: all 0.2s;
    color: var(--text-dim);
}
.msg-actions button:hover { border-color: var(--neon-dim); color: var(--neon); }
.msg-actions button.voted { border-color: var(--neon); color: var(--neon); background: rgba(57,255,20,0.1); }

/* Typing indicator */
.typing-indicator {
    align-self: flex-start; padding: 16px 20px; background: var(--surface);
    border: 1px solid var(--border); border-radius: 18px;
    border-bottom-left-radius: 4px; display: flex; gap: 6px; align-items: center;
}
.typing-indicator span {
    width: 8px; height: 8px; border-radius: 50%; background: var(--neon);
    animation: typingBounce 1.4s ease-in-out infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-8px); opacity: 1; }
}

/* Cursor blink in streaming text */
.cursor-blink {
    display: inline-block; width: 2px; height: 16px; background: var(--neon);
    margin-left: 2px; vertical-align: text-bottom;
    animation: blink 0.8s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.chat-input-bar {
    position: sticky; bottom: 0; background: var(--bg);
    padding: 18px 0; z-index: 10; margin-top: auto; display: flex; gap: 10px;
}
.chat-input-bar textarea {
    flex: 1; padding: 14px 18px; background: var(--surface); border: 1px solid var(--border);
    border-radius: 14px; color: var(--text); font-size: 14px; font-family: var(--font);
    resize: none; transition: all 0.3s;
}
.chat-input-bar textarea:focus { outline: none; border-color: var(--neon-dim); box-shadow: 0 0 25px var(--neon-glow); }
.chat-input-bar button {
    padding: 14px 32px; background: linear-gradient(135deg, var(--neon-dim), #1a8a0a);
    border: 1px solid var(--neon-dim); border-radius: 14px;
    color: #fff; font-weight: 700; font-size: 14px; cursor: pointer;
    transition: all 0.25s; letter-spacing: 0.3px; align-self: flex-end;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3); position: relative; overflow: hidden;
}
.chat-input-bar button:hover { box-shadow: 0 0 35px var(--neon-glow); }
.chat-input-bar button:active { transform: scale(0.96); }
.chat-input-bar button:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.chat-sources {
    font-size: 11px; color: var(--neon); padding: 6px 0; text-transform: uppercase; letter-spacing: 0.5px;
}

/* Sidebar toggle */
.sidebar-toggle {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 8px 12px; cursor: pointer;
    color: var(--text-dim); font-size: 14px; transition: all 0.2s;
}
.sidebar-toggle:hover { border-color: var(--neon-dim); color: var(--neon); }

/* ═══ DOCUMENTS ═══ */
.upload-zone {
    border: 2px dashed var(--border); border-radius: var(--radius); padding: 48px;
    text-align: center; cursor: pointer; transition: all 0.3s;
    background: var(--bg-alt); position: relative;
}
.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--neon-dim);
    box-shadow: inset 0 0 60px rgba(57,255,20,0.03);
    background: rgba(57,255,20,0.02);
}
.upload-zone p { margin-bottom: 10px; font-size: 15px; }
.upload-zone .upload-icon { font-size: 48px; display: block; margin-bottom: 16px; animation: float 2s ease-in-out infinite; }
.upload-zone input[type="file"] { display: none; }
.upload-zone button {
    margin-top: 12px; padding: 12px 26px;
    background: linear-gradient(135deg, var(--neon-dim), #1a8a0a);
    border: 1px solid var(--neon-dim); border-radius: var(--radius-sm);
    color: #fff; font-weight: 700; cursor: pointer; transition: all 0.25s;
}
.upload-zone button:hover { box-shadow: 0 0 30px var(--neon-glow); }
.upload-progress { margin-top: 14px; font-size: 13px; color: var(--neon); }

/* Progress bar */
.progress-bar {
    height: 4px; background: var(--border); border-radius: 2px; margin-top: 8px; overflow: hidden;
}
.progress-bar-fill {
    height: 100%; background: var(--neon); border-radius: 2px;
    transition: width 0.3s; box-shadow: 0 0 10px var(--neon-glow);
    width: 0%;
}

.doc-list { max-height: 500px; overflow-y: auto; }
.doc-item {
    padding: 16px 18px; border-bottom: 1px solid rgba(255,255,255,0.03);
    display: flex; align-items: center; gap: 12px; transition: background 0.2s;
}
.doc-item:hover { background: rgba(255,255,255,0.02); }
.doc-item .doc-name { font-weight: 700; font-size: 14px; flex: 1; }
.doc-item .doc-info { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.doc-item .doc-chunks {
    font-size: 11px; background: rgba(57,255,20,0.1);
    border: 1px solid rgba(57,255,20,0.2); color: var(--neon);
    padding: 5px 12px; border-radius: 6px; font-weight: 700;
}
.btn-delete {
    background: none; border: 1px solid var(--border); border-radius: 8px;
    padding: 6px 10px; cursor: pointer; font-size: 1rem; opacity: 0.5; transition: all 0.2s;
}
.btn-delete:hover { opacity: 1; border-color: var(--pink); background: rgba(255,90,140,0.1); }

/* ═══ UTILITY ═══ */
.muted { color: var(--text-dim); }
.empty { text-align: center; padding: 40px; color: var(--text-dim); font-size: 14px; }
.status-online {
    display: inline-block; width: 8px; height: 8px; background: var(--neon);
    border-radius: 50%; box-shadow: 0 0 12px var(--neon-glow);
    animation: statusPulse 2s ease-in-out infinite;
}
@keyframes statusPulse {
    0%, 100% { box-shadow: 0 0 8px var(--neon-glow); }
    50% { box-shadow: 0 0 20px var(--neon-pulse); }
}

/* ═══ BUG CURSOR TRAIL ═══ */
.bug-trail {
    position: fixed; pointer-events: none; z-index: 9999; font-size: 16px;
    transition: transform 0.1s ease-out;
    filter: drop-shadow(0 0 6px var(--neon-glow));
    animation: bugWiggle 0.4s ease-in-out infinite alternate;
}
@keyframes bugWiggle { from { transform: rotate(-5deg) translateY(-1px); } to { transform: rotate(5deg) translateY(1px); } }

/* ═══ KEYBOARD SHORTCUT HINT ═══ */
.kbd-hint {
    font-size: 10px; color: var(--text-dim); text-align: center;
    padding: 4px 0; opacity: 0.6;
}
.kbd {
    display: inline-block; padding: 2px 7px; background: var(--surface);
    border: 1px solid var(--border); border-radius: 4px;
    font-family: var(--font); font-size: 10px; font-weight: 700;
    margin: 0 2px;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
    /* Nav — compact, wraps cleanly instead of overflowing */
    .top-nav { padding: 10px 12px; gap: 8px; flex-wrap: wrap; height: 56px; align-items: center; }
    .nav-brand { gap: 8px; }
    .logo { font-size: 22px; }
    .brand-text { font-size: 15px; letter-spacing: -0.2px; }
    .nav-links { gap: 2px; order: 3; width: 100%; justify-content: center; }
    .nav-link { padding: 7px 10px; font-size: 12px; }
    .nav-right { margin-left: auto; }
    .sound-toggle, .sidebar-toggle { width: 34px; height: 34px; font-size: 14px; }

    /* Layout */
    .stats-row { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stat-card { padding: 18px 14px; }
    .stat-value { font-size: 28px; }
    .stat-label { letter-spacing: 1px; }
    .grid-2col { grid-template-columns: 1fr; gap: 12px; }
    .dashboard { padding: 14px; }
    .panel { padding: 18px; }

    /* Search — full-width, stacked-friendly */
    .search-box { gap: 8px; }
    .search-box input { padding: 12px 14px; font-size: 16px; }  /* 16px prevents iOS zoom */
    .search-box button { padding: 12px 18px; font-size: 13px; white-space: nowrap; }

    /* Chat */
    .chat-main { padding: 12px; }
    .chat-header h2 { font-size: 18px; }
    .chat-msg { max-width: 92%; padding: 13px 15px; }
    .chat-input-bar { gap: 8px; padding: 12px 0; }
    .chat-input-bar textarea { font-size: 16px; padding: 12px 14px; }  /* 16px prevents iOS zoom */
    .chat-input-bar button { padding: 12px 20px; font-size: 13px; }

    /* Conversation sidebar → off-canvas drawer (does NOT squeeze content) */
    .conv-sidebar {
        position: fixed; top: 56px; left: 0; bottom: 0; z-index: 200;
        width: 280px; max-width: 82vw;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: 0 12px 50px rgba(0,0,0,0.6);
    }
    .conv-sidebar.collapsed { transform: translateX(-100%); width: 280px; }
    .conv-sidebar:not(.collapsed) { transform: translateX(0); }

    /* Documents */
    .upload-zone { padding: 28px 16px; }
    .doc-item { flex-wrap: wrap; padding: 14px 12px; }
    .doc-item .doc-name { flex: 1 1 100%; }
}

@media (max-width: 480px) {
    .brand-text { font-size: 14px; }
    .nav-link { padding: 7px 8px; font-size: 11.5px; }
    .stat-value { font-size: 24px; }
    .game-score-value { font-size: 26px; }
    .chat-msg { max-width: 96%; }
    .toast { max-width: 92vw; }
    #gameContainer { height: 260px; }
}

/* ═══ SCROLLBAR ═══ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-glow); }

/* ═══ GLOW TEXT ═══ */
.glow-text {
    text-shadow: 0 0 20px var(--neon-glow), 0 0 40px var(--neon-glow);
    animation: glowPulse 2s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { text-shadow: 0 0 20px var(--neon-glow); }
    50% { text-shadow: 0 0 40px var(--neon-pulse), 0 0 80px var(--neon-glow); }
}

/* ═══ HOVER GLOW ═══ */
.hover-glow { transition: all 0.3s; }
.hover-glow:hover { box-shadow: 0 0 30px var(--neon-glow); transform: translateY(-2px); }

/* ═══ BUG SQUASHER GAME ═══ */
.game-panel { overflow: hidden; position: relative; }
#gameContainer {
    position: relative; width: 100%; height: 320px;
    background: var(--bg-alt); border-radius: var(--radius-sm);
    overflow: hidden; cursor: crosshair;
    border: 1px solid var(--border);
}
#gameOverlay {
    position: absolute; inset: 0; z-index: 10;
    display: flex; align-items: center; justify-content: center;
    pointer-events: none;
}
#gameStartScreen {
    text-align: center; pointer-events: all;
    animation: fadeInUp 0.5s ease-out;
}
@keyframes fadeInUp {
    from { opacity:0; transform: translateY(20px); }
    to { opacity:1; transform: translateY(0); }
}
#gameHUD {
    position: absolute; top: 12px; left: 12px; right: 12px;
    display: flex; justify-content: space-between; align-items: center;
    pointer-events: none;
}
.game-score { text-align: left; }
.game-score-label {
    display: block; font-size: 9px; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 1.5px; font-weight: 700;
}
.game-score-value {
    font-size: 32px; font-weight: 800; letter-spacing: -1px;
    color: var(--neon); text-shadow: 0 0 20px var(--neon-glow);
    font-variant-numeric: tabular-nums;
}
.game-combo {
    font-size: 14px; font-weight: 700; color: var(--amber);
    text-shadow: 0 0 12px var(--amber-glow);
    transition: all 0.2s;
}
.game-lives { font-size: 18px; letter-spacing: 3px; }
.game-bug {
    position: absolute; font-size: 28px; cursor: pointer;
    transition: transform 0.05s; user-select: none;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
    z-index: 5; animation: bugScurry 0.3s ease-in-out infinite alternate;
    pointer-events: all;
}
@keyframes bugScurry {
    from { transform: translateY(-1px); }
    to { transform: translateY(2px); }
}
.game-bug:hover { transform: scale(1.3); filter: drop-shadow(0 0 8px var(--neon-glow)); }
.game-bug.squished {
    animation: squish 0.3s ease-out forwards; pointer-events: none;
}
@keyframes squish {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.7; }
    100% { transform: scale(0.2) rotate(90deg); opacity: 0; }
}
.splat {
    position: absolute; font-size: 24px; pointer-events: none; z-index: 4;
    animation: splatFade 0.5s ease-out forwards;
}
@keyframes splatFade {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}
.game-over-screen {
    text-align: center; pointer-events: all;
    animation: fadeInUp 0.4s ease-out;
}
.game-over-screen .final-score {
    font-size: 56px; font-weight: 800; letter-spacing: -2px;
    color: var(--neon); text-shadow: 0 0 40px var(--neon-pulse);
    line-height: 1;
}
.bug-spray {
    position: absolute; pointer-events: none; z-index: 8;
    width: 4px; height: 4px; border-radius: 50%;
    background: rgba(57,255,20,0.4);
    box-shadow: 0 0 6px var(--neon-glow);
    animation: sprayFade 0.4s ease-out forwards;
}
@keyframes sprayFade {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(0); opacity: 0; }
}