/* SerialSync Flasher — Extracted Styles */
/* Source: index.html (monolith) -> css/styles.css */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

        :root {
            --bg:           #03060f;
            --surface:      #080d1a;
            --card:         #0d1221;
            --card2:        #111829;
            --text:         #dce6f5;
            --text-dim:     #5e7399;
            --text-muted:   #2e3f5c;
            --primary:      #1a6ef5;
            --primary-lt:   #4d93ff;
            --accent:       #00c8a8;
            --accent-lt:    #00e8c4;
            --danger:       #f0405a;
            --warning:      #f0a030;
            --border:       rgba(26,110,245,0.12);
            --border-glow:  rgba(26,110,245,0.35);
            --glow-blue:    rgba(26,110,245,0.25);
            --shadow-deep:  0 32px 64px rgba(0,0,0,0.7);
        }
        body.light {
            --bg:           #eef2fa;
            --surface:      #f8faff;
            --card:         #ffffff;
            --card2:        #f2f6ff;
            --text:         #0a1628;
            --text-dim:     #3d5280;
            --text-muted:   #96aad0;
            --border:       rgba(26,110,245,0.1);
            --border-glow:  rgba(26,110,245,0.3);
            --glow-blue:    rgba(26,110,245,0.1);
            --shadow-deep:  0 32px 64px rgba(0,0,0,0.15);
        }

        html, body { height: 100%; }
        body {
            font-family: 'Calibri', 'Segoe UI', 'Roboto', sans-serif;
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow: hidden;
            transition: background 0.4s, color 0.4s;
            font-weight: 400;
            font-size: 14px;
            line-height: 1.5;
        }

        h1, h2, h3, .topbar-title, .btn, .card-label, .welcome-badge, .conn-label, .co-name, .co-sub, .term-label, button, select, .statusbar {
            font-family: 'Nexa', 'Calibri', 'Segoe UI', sans-serif;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        .mac-tile-value, .conn-port, .term-body, .detail-text code, .co-sub, .co-tagline, .prog-meta {
            font-family: 'JetBrains Mono', monospace;
        }

        /* BG LAYER */
        .bg-layer { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
        .bg-grid {
            position: absolute; inset: 0;
            background-image:
                linear-gradient(rgba(26,110,245,0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(26,110,245,0.05) 1px, transparent 1px);
            background-size: 52px 52px;
        }
        body.light .bg-grid {
            background-image:
                linear-gradient(rgba(26,110,245,0.07) 1px, transparent 1px),
                linear-gradient(90deg, rgba(26,110,245,0.07) 1px, transparent 1px);
        }
        .bg-orb { position: absolute; border-radius: 50%; filter: blur(100px); }
        .orb-a { width:600px;height:600px; background:radial-gradient(circle,rgba(26,110,245,0.14) 0%,transparent 70%); top:-250px;left:-200px; }
        .orb-b { width:450px;height:450px; background:radial-gradient(circle,rgba(0,200,168,0.1) 0%,transparent 70%); bottom:-180px;right:-150px; }
        .orb-c { width:300px;height:300px; background:radial-gradient(circle,rgba(240,165,0,0.06) 0%,transparent 70%); top:50%;left:55%;transform:translate(-50%,-50%); }

        /* ======================== LOGIN SCREEN ======================== */
        #loginScreen {
            position: fixed; inset: 0; z-index: 9999;
            display: flex; align-items: center; justify-content: center;
            padding: 24px;
            transition: opacity 0.5s ease, transform 0.5s ease;
            background: var(--bg); /* solid bg — hides everything behind */
        }
        #loginScreen.hiding {
            opacity: 0; transform: scale(1.03) translateY(-12px);
            pointer-events: none;
        }

        .login-outer {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            max-width: 820px; width: 100%;
            background: var(--card);
            border: 1px solid var(--border-glow);
            border-radius: 32px;
            overflow: hidden;
            box-shadow: var(--shadow-deep), 0 0 0 1px rgba(26,110,245,0.08);
            animation: loginFadeUp 0.7s cubic-bezier(0.22,1,0.36,1) both;
        }
        @media(max-width:620px){ .login-outer{grid-template-columns:1fr;} .login-brand-side{display:none;} }
        @keyframes loginFadeUp { from{opacity:0;transform:translateY(40px);} to{opacity:1;transform:translateY(0);} }

        /* Brand side */
        .login-brand-side {
            background: linear-gradient(145deg, #080e20 0%, #0d1630 60%, #091423 100%);
            padding: 52px 40px;
            display: flex; flex-direction: column; justify-content: space-between;
            position: relative; overflow: hidden;
            border-right: 1px solid var(--border);
        }
        .login-brand-side::before {
            content: '';
            position: absolute; inset: 0;
            background:
                radial-gradient(ellipse at 20% 20%, rgba(26,110,245,0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 80%, rgba(0,200,168,0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        .login-brand-side::after {
            content: '';
            position: absolute; top: 0; left: 0; right: 0; height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
        }
        .lb-logo-wrap {
            display: flex; align-items: center; gap: 12px; position: relative; z-index: 1;
        }
        .lb-logo-wrap img { height: 36px; width: auto; filter: brightness(0) invert(1); opacity: 0.9; }
        body.light .lb-logo-wrap img { filter: none; }
        .lb-app-name {
            font-family: 'Nexa', sans-serif; font-weight: 800; font-size: 30px;
            line-height: 1.05; letter-spacing: -0.02em;
        }
        .lb-app-name em {
            font-style: normal;
            background: linear-gradient(90deg, var(--primary-lt), var(--accent-lt));
            -webkit-background-clip: text; background-clip: text; color: transparent;
        }
        .lb-center { position: relative; z-index: 1; }
        .lb-tagline {
            font-family: 'Nexa', sans-serif; font-weight: 800;
            font-size: 17px; line-height: 1.4; letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .lb-tagline span {
            background: linear-gradient(120deg, var(--primary-lt), var(--accent-lt));
            -webkit-background-clip: text; background-clip: text; color: transparent;
        }
        .lb-desc { font-size: 12px; color: var(--text-dim); line-height: 1.7; }
        .lb-features { position: relative; z-index: 1; }
        .lb-feat {
            display: flex; align-items: center; gap: 10px;
            font-size: 11px; color: var(--text-dim); margin-bottom: 10px;
        }
        .lb-feat-dot {
            width: 6px; height: 6px; border-radius: 50%;
            background: var(--accent-lt); box-shadow: 0 0 8px rgba(0,232,196,0.5);
            flex-shrink: 0;
        }

        /* Form side */
        .login-form-side {
            padding: 52px 44px;
            display: flex; flex-direction: column; justify-content: center;
            position: relative;
        }
        .login-form-side::before {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            border-radius: 0 0 32px 0;
        }
        .login-eyebrow {
            font-family: 'Nexa', sans-serif; font-size: 10px; font-weight: 800;
            letter-spacing: 0.12em; text-transform: uppercase;
            color: var(--primary-lt); margin-bottom: 10px;
            display: flex; align-items: center; gap: 8px;
        }
        .login-eyebrow::before {
            content: ''; display: block; width: 20px; height: 2px;
            background: var(--primary-lt); border-radius: 1px;
        }
        .login-title {
            font-family: 'Nexa', sans-serif; font-weight: 800;
            font-size: 28px; letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .login-sub { font-size: 12px; color: var(--text-dim); margin-bottom: 32px; }

        .login-field { margin-bottom: 18px; }
        .login-field label {
            display: block; font-family: 'Nexa', sans-serif;
            font-size: 10px; font-weight: 800;
            letter-spacing: 0.1em; text-transform: uppercase;
            color: var(--text-muted); margin-bottom: 7px;
        }
        .login-input-wrap { position: relative; }
        .login-input-wrap .field-icon {
            position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
            font-size: 14px; pointer-events: none;
        }
        .login-input {
            width: 100%; padding: 11px 40px 11px 38px;
            background: var(--card2); border: 1px solid var(--border);
            border-radius: 12px; color: var(--text);
            font-family: 'Calibri', 'Segoe UI', sans-serif;
            font-size: 13px; font-weight: 500;
            transition: border-color 0.2s, box-shadow 0.2s;
            outline: none;
        }
        .login-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26,110,245,0.15);
        }
        .login-input::placeholder { color: var(--text-muted); }
        .toggle-pw {
            position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
            background: none; border: none; cursor: pointer;
            color: var(--text-muted); font-size: 13px; padding: 4px;
            transition: color 0.2s;
        }
        .toggle-pw:hover { color: var(--text); }

        .login-error {
            background: rgba(240,64,90,0.1); border: 1px solid rgba(240,64,90,0.25);
            border-radius: 10px; padding: 10px 14px;
            font-size: 12px; color: var(--danger);
            margin-bottom: 16px; display: none;
            animation: shakeErr 0.4s ease;
        }
        @keyframes shakeErr {
            0%,100%{transform:translateX(0);} 20%{transform:translateX(-6px);} 60%{transform:translateX(6px);}
        }

        .login-btn {
            width: 100%; padding: 13px 24px;
            background: linear-gradient(135deg, var(--primary), #0d55cc);
            color: white; border: none; border-radius: 12px;
            font-family: 'Nexa', sans-serif; font-size: 14px; font-weight: 800;
            cursor: pointer; letter-spacing: 0.04em;
            transition: all 0.3s ease;
            box-shadow: 0 6px 24px rgba(26,110,245,0.45);
            position: relative; overflow: hidden;
        }
        .login-btn::before {
            content: ''; position: absolute; top: 0; left: -100%; width: 60%; height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transform: skewX(-20deg); transition: left 0.5s;
        }
        .login-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(26,110,245,0.55); }
        .login-btn:hover::before { left: 150%; }
        .login-btn:active { transform: scale(0.97); }

        .login-footer {
            margin-top: 24px; text-align: center;
            font-size: 10px; color: var(--text-muted);
        }

        /* ====================== TOPBAR ====================== */
        .topbar {
            position:fixed;top:0;left:0;right:0;z-index:900;
            height:58px;
            background:rgba(3,6,15,0.88);
            backdrop-filter:blur(24px);
            border-bottom:1px solid var(--border);
            display:flex;align-items:center;justify-content:space-between;
            padding:0 24px;
        }
        body.light .topbar { background:rgba(238,242,250,0.92); }
        .topbar-brand { display:flex;align-items:center;gap:10px; }
        .topbar-logo-img {
            height:32px; width:auto;
            filter:brightness(0) invert(1); opacity:0.88;
            transition:opacity 0.2s;
        }
        body.light .topbar-logo-img { filter:none; opacity:1; }
        .topbar-title { font-weight:800; font-size:16px; letter-spacing:-0.2px; }
        .topbar-title em {
            font-style:normal;
            background:linear-gradient(90deg,var(--primary-lt),var(--accent-lt));
            -webkit-background-clip:text;background-clip:text;color:transparent;
        }
        .topbar-center {
            font-family:'JetBrains Mono',monospace;
            font-size:11px;color:var(--text);text-align:center;line-height:1.5;
            font-weight:800; letter-spacing:0.02em;
        }
        .topbar-actions { display:flex;gap:8px;align-items:center; }

        /* Role badge in topbar */
        .role-badge {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 4px 12px; border-radius: 100px;
            font-family: 'Nexa', sans-serif; font-size: 9px;
            font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
        }
        .role-badge.developer {
            background: rgba(26,110,245,0.12); border: 1px solid rgba(26,110,245,0.3);
            color: var(--primary-lt);
        }
        .role-badge.client {
            background: rgba(0,200,168,0.1); border: 1px solid rgba(0,200,168,0.25);
            color: var(--accent-lt);
        }
        .role-badge-dot { width:5px;height:5px;border-radius:50%; background:currentColor; }

        /* ====================== BUTTONS ====================== */
        button {
            padding:7px 16px; border:none; border-radius:10px;
            font-family: 'Nexa', 'Calibri', sans-serif;
            font-size:12px; font-weight:700;
            cursor:pointer; transition:all 0.2s ease; letter-spacing:0.02em;
            position:relative; overflow:hidden;
        }
        button:active { transform:scale(0.96); }
        button:disabled { opacity:0.4; cursor:not-allowed; transform:none; }
        .btn-primary {
            background:linear-gradient(135deg,var(--primary),#0d55cc);
            color:#fff; box-shadow:0 4px 18px rgba(26,110,245,0.4);
        }
        .btn-primary:hover:not(:disabled) { box-shadow:0 6px 28px rgba(26,110,245,0.55); transform:translateY(-1px); }
        .btn-primary::before {
            content:''; position:absolute; top:0; left:-100%; width:60%; height:100%;
            background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);
            transform:skewX(-20deg); transition:left 0.5s;
        }
        .btn-primary:hover::before { left:140%; }
        .btn-danger { background:rgba(240,64,90,0.12); color:var(--danger); border:1px solid rgba(240,64,90,0.28); }
        .btn-danger:hover:not(:disabled) { background:rgba(240,64,90,0.22); transform:translateY(-1px); }
        .btn-warning { background:rgba(240,160,48,0.12); color:var(--warning); border:1px solid rgba(240,160,48,0.28); }
        .btn-warning:hover:not(:disabled) { background:rgba(240,160,48,0.22); transform:translateY(-1px); }
        .btn-secondary { background:rgba(255,255,255,0.05); color:var(--text-dim); border:1px solid var(--border); }
        .btn-secondary:hover:not(:disabled) { background:rgba(255,255,255,0.1); color:var(--text); }
        body.light .btn-secondary { background:rgba(0,0,0,0.05); }

        /* ====================== WELCOME ====================== */
        .fullscreen-welcome {
            position:fixed; top:58px;left:0;right:0;bottom:0;
            display:flex;align-items:center;justify-content:center;
            z-index:100; padding:28px 32px; overflow-y:auto;
            transition:opacity 0.5s ease,transform 0.5s ease,visibility 0.5s;
        }
        .fullscreen-welcome.hidden { opacity:0;transform:scale(0.97);pointer-events:none;visibility:hidden; }
        .welcome-grid {
            max-width:1120px;width:100%;
            display:grid; grid-template-columns:1.35fr 0.65fr; gap:22px; align-items:stretch;
        }
        @media(max-width:820px){ .welcome-grid{grid-template-columns:1fr;} }
        .welcome-card {
            background:var(--card); border:1px solid var(--border); border-radius:28px;
            padding:52px 52px 44px; position:relative; overflow:hidden;
            animation:fadeUp 0.7s cubic-bezier(0.22,1,0.36,1) both;
            box-shadow:var(--shadow-deep),0 0 0 1px rgba(26,110,245,0.08);
            transition:box-shadow 0.4s ease,border-color 0.4s ease;
        }
        .welcome-card::before {
            content:''; position:absolute; top:0;left:0;right:0; height:2px;
            background:linear-gradient(90deg,transparent 0%,var(--primary) 30%,var(--accent) 70%,transparent 100%);
            border-radius:28px 28px 0 0;
        }
        .welcome-badge {
            display:inline-flex;align-items:center;gap:8px;
            background:rgba(26,110,245,0.1); border:1px solid rgba(26,110,245,0.28);
            border-radius:100px; padding:5px 16px;
            font-size:10px;font-weight:800;color:var(--primary-lt);
            letter-spacing:0.1em;text-transform:uppercase; margin-bottom:28px;
        }
        .badge-dot {
            width:6px;height:6px;border-radius:50%;
            background:var(--accent-lt); box-shadow:0 0 8px var(--accent-lt);
            animation:blink 2s ease-in-out infinite;
        }
        @keyframes blink { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.4;transform:scale(0.75);} }
        .welcome-card h1 {
            font-family: 'Nexa', sans-serif;
            font-weight:800; font-size:48px; line-height:1.05;
            letter-spacing:-0.02em; margin-bottom:18px;
        }
        .welcome-card h1 .ln1 { color:var(--text); display:block; }
        .welcome-card h1 .ln2 {
            background:linear-gradient(120deg,var(--primary-lt) 0%,var(--accent-lt) 100%);
            -webkit-background-clip:text;background-clip:text;color:transparent; display:block;
        }
        .welcome-card > p {
            color:var(--text-dim);font-size:14px;line-height:1.75; margin-bottom:32px;max-width:520px;
        }
        .feature-list { display:flex;flex-direction:column;gap:10px;margin-bottom:40px; }
        .feature-item {
            display:flex;align-items:center;gap:12px;
            font-size:13px;color:var(--text-dim);
            opacity:0; animation:slideIn 0.5s ease forwards;
        }
        .feature-item:nth-child(1){animation-delay:0.3s;}
        .feature-item:nth-child(2){animation-delay:0.45s;}
        .feature-item:nth-child(3){animation-delay:0.6s;}
        .feature-item:nth-child(4){animation-delay:0.75s;}
        @keyframes slideIn { from{opacity:0;transform:translateX(-12px);} to{opacity:1;transform:translateX(0);} }
        .feat-icon {
            width:28px;height:28px;border-radius:8px;
            background:rgba(26,110,245,0.1); border:1px solid rgba(26,110,245,0.2);
            display:flex;align-items:center;justify-content:center;
            font-size:13px;flex-shrink:0;
        }
        .connect-large-btn {
            width:100%;padding:16px 32px;
            background:linear-gradient(135deg,var(--primary) 0%,#0d55cc 50%,#0a48b0 100%);
            background-size:200% 200%; color:white;border:none;
            font-family:'Nexa',sans-serif;font-size:15px;font-weight:800;
            border-radius:14px;cursor:pointer;transition:all 0.3s ease;
            box-shadow:0 6px 28px rgba(26,110,245,0.5);
            animation:gradShift 5s ease infinite; letter-spacing:0.04em;
            position:relative;overflow:hidden;
        }
        @keyframes gradShift{0%,100%{background-position:0% 50%;}50%{background-position:100% 50%;}}
        .connect-large-btn::before {
            content:''; position:absolute;top:0;left:-100%;width:60%;height:100%;
            background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);
            transform:skewX(-20deg); transition:left 0.6s;
        }
        .connect-large-btn:hover { transform:translateY(-3px);box-shadow:0 12px 40px rgba(26,110,245,0.6); }
        .connect-large-btn:hover::before { left:150%; }

        /* Company Card Welcome */
        .company-card-welcome {
            background:var(--card); border:1px solid var(--border); border-radius:28px;
            padding:40px 36px; display:flex;flex-direction:column;
            animation:fadeUp 0.7s cubic-bezier(0.22,1,0.36,1) 0.12s both;
            box-shadow:var(--shadow-deep);
            position:relative; overflow:hidden;
        }
        .company-card-welcome::before {
            content:''; position:absolute;bottom:0;left:0;right:0;height:2px;
            background:linear-gradient(90deg,transparent 0%,var(--accent) 50%,transparent 100%);
            border-radius:0 0 28px 28px;
        }
        .co-logo-wrap {
            width:72px;height:72px;margin-bottom:18px;border-radius:20px;
            overflow:hidden; border:1px solid rgba(0,200,168,0.25);
            background:rgba(0,200,168,0.06);
            display:flex;align-items:center;justify-content:center;
        }
        .co-logo-wrap img { width:52px;height:auto;filter:brightness(0) invert(1);opacity:0.9; }
        body.light .co-logo-wrap img { filter:none;opacity:1; }
        .co-name {
            font-family:'Nexa',sans-serif;font-weight:800;font-size:26px;
            background:linear-gradient(120deg,var(--primary-lt),var(--accent-lt));
            -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px;
        }
        .co-sub { font-size:10px;color:var(--text-muted);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:22px; }
        .co-divider { height:1px;background:var(--border);margin-bottom:20px; }
        .detail-row {
            display:flex;gap:12px;margin-bottom:16px;
            font-size:12.5px;color:var(--text-dim);line-height:1.55;align-items:flex-start;
            transition:transform 0.2s ease,color 0.2s ease;
        }
        .detail-row:hover { transform:translateX(4px);color:var(--text); }
        .detail-icon { font-size:15px;min-width:20px;text-align:center;margin-top:1px; }
        .detail-text strong { color:var(--accent-lt);font-weight:700; }
        .co-tagline {
            margin-top:auto;padding-top:18px;
            border-top:1px dashed rgba(26,110,245,0.15);
            font-size:10px;color:var(--text-muted);text-align:center;letter-spacing:0.08em;
        }
        @keyframes fadeUp { from{opacity:0;transform:translateY(32px);} to{opacity:1;transform:translateY(0);} }

        /* ====================== APP CONTAINER ====================== */
        .app-container { display:none;position:fixed;top:58px;left:0;right:0;bottom:0;flex-direction:column;overflow:hidden; }
        .app-container.visible { display:flex; }
        .main-content { display:flex;flex:1;padding:14px 16px;gap:14px;overflow:hidden; }
        .left-panel {
            width:370px;flex-shrink:0;
            display:flex;flex-direction:column;gap:12px;
            overflow-y:auto;padding-right:4px;
        }
        .left-panel::-webkit-scrollbar{width:3px;}
        .card {
            background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px 18px;
            transition:border-color 0.3s,box-shadow 0.3s;
        }
        .card:hover { border-color:var(--border-glow);box-shadow:0 8px 32px rgba(0,0,0,0.35),0 0 0 1px rgba(26,110,245,0.1); }
        .card-label {
            font-family:'Nexa',sans-serif;font-size:10px;font-weight:800;
            text-transform:uppercase;letter-spacing:0.12em;color:var(--text-muted);
            margin-bottom:12px;display:flex;align-items:center;gap:8px;
        }
        .card-label::before {
            content:'';display:block;width:3px;height:12px;
            background:linear-gradient(to bottom,var(--primary-lt),var(--accent-lt));
            border-radius:2px;
        }
        .conn-row { display:flex;align-items:center;gap:14px;margin-bottom:12px; }
        .conn-orb-wrap { position:relative;width:44px;height:44px;flex-shrink:0; }
        .conn-orb {
            width:44px;height:44px;border-radius:50%;border:2px solid var(--danger);
            display:flex;align-items:center;justify-content:center;transition:border-color 0.4s;
        }
        .conn-orb.on { border-color:var(--accent-lt); }
        .conn-orb-inner { width:22px;height:22px;border-radius:50%;background:var(--danger);transition:background 0.4s,box-shadow 0.4s; }
        .conn-orb.on .conn-orb-inner { background:var(--accent-lt);box-shadow:0 0 14px rgba(0,232,196,0.6); }
        .conn-pulse {
            position:absolute;inset:0;border-radius:50%;border:2px solid var(--accent-lt);
            opacity:0;animation:ripple 2.2s ease-out infinite;
        }
        .conn-pulse.hide { animation:none;opacity:0; }
        @keyframes ripple { 0%{transform:scale(1);opacity:0.5;} 100%{transform:scale(1.9);opacity:0;} }
        .conn-info .conn-label { font-size:14px;font-weight:800; font-family:'Nexa',sans-serif; }
        .conn-info .conn-port { font-size:10px;color:var(--text-muted);margin-top:2px; }
        .mac-tile {
            background:var(--card2);border:1px solid var(--border);border-radius:12px;
            padding:12px 14px;display:flex;align-items:center;gap:10px;
        }
        select {
            width:100%;padding:10px 36px 10px 12px;
            background:var(--card2);border:1px solid var(--border);border-radius:11px;
            color:var(--text);font-size:13px;font-weight:600;
            margin:10px 0 0 0;cursor:pointer;transition:border-color 0.2s;
            appearance:none;
            background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235e7399' stroke-width='2.5'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat:no-repeat;background-position:right 12px center;
        }
        .progress-wrap { display:none;margin:12px 0 0; }
        .prog-meta { display:flex;justify-content:space-between;font-size:9px;color:var(--text-muted);margin-bottom:5px; }
        .progress-bar { height:3px;background:var(--border);border-radius:2px;overflow:hidden; }
        .progress-fill { height:100%;width:0%;background:linear-gradient(90deg,var(--primary),var(--accent-lt));transition:width 0.3s ease; }
        .button-group { display:flex;gap:10px;margin-top:12px; }
        .company-card-app { background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px 18px; }
        .co-app-header { display:flex;align-items:center;gap:12px;margin-bottom:12px;border-bottom:1px solid var(--border);padding-bottom:12px; }
        .co-app-logo img { width:26px;height:auto;filter:brightness(0) invert(1);opacity:0.9; }
        body.light .co-app-logo img { filter:none; }
        .co-app-name { font-family:'Nexa',sans-serif; font-weight:800;font-size:14px;background:linear-gradient(120deg,var(--primary-lt),var(--accent-lt));-webkit-background-clip:text;background-clip:text;color:transparent; }
        .right-panel { flex:1;display:flex;flex-direction:column;gap:14px;min-width:0; }
        .terminal-card { background:var(--card);border:1px solid var(--border);border-radius:16px;display:flex;flex-direction:column;overflow:hidden;flex:1; }
        .term-header { padding:10px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;background:var(--surface); }
        .term-dots { display:flex;gap:5px; }
        .term-dot { width:10px;height:10px;border-radius:50%; }
        .td-r{background:#ff5f57;} .td-y{background:#febc2e;} .td-g{background:#28c840;}
        .term-label { font-size:9px;font-weight:700;letter-spacing:0.05em;color:var(--text-muted);flex:1;text-transform:uppercase; }
        .term-body { background:#010409;color:#3dd68c;font-family:'JetBrains Mono',monospace;font-size:11px;flex:1;overflow-y:auto;padding:14px;white-space:pre-wrap; }
        body.light .term-body { background:#0d1117; }

        /* Client: firmware progress bar inside serial panel */
        .fw-progress-panel {
            background: var(--surface); border-top: 1px solid var(--border);
            padding: 12px 16px; display: none;
        }
        .fw-progress-panel.visible { display: block; }
        .fw-prog-header {
            display: flex; justify-content: space-between; align-items: center;
            margin-bottom: 7px;
        }
        .fw-prog-label {
            font-family: 'Nexa', sans-serif; font-size: 10px;
            font-weight: 800; letter-spacing: 0.1em;
            text-transform: uppercase; color: var(--text-dim);
        }
        .fw-prog-pct {
            font-family: 'JetBrains Mono', monospace;
            font-size: 11px; color: var(--accent-lt); font-weight: 700;
        }
        .fw-progress-bar {
            height: 5px; background: var(--border); border-radius: 3px; overflow: hidden;
        }
        .fw-progress-fill {
            height: 100%; width: 0%;
            background: linear-gradient(90deg, var(--primary), var(--accent-lt));
            border-radius: 3px;
            transition: width 0.3s ease;
            box-shadow: 0 0 8px rgba(0,232,196,0.4);
        }
        .fw-prog-status {
            margin-top: 6px; font-size: 10px; color: var(--text-muted);
            font-family: 'JetBrains Mono', monospace;
        }

        .statusbar {
            position:fixed;bottom:12px;left:12px;display:flex;align-items:center;gap:8px;
            background:rgba(8,13,26,0.92);backdrop-filter:blur(14px);
            border:1px solid var(--border);border-radius:100px;padding:5px 14px;
            font-size:10px;color:var(--text-muted);z-index:1000;font-weight:600;
        }
        .status-dot{width:7px;height:7px;border-radius:50%;background:var(--danger);transition:all 0.3s;}
        .status-dot.on{background:var(--accent-lt);box-shadow:0 0 8px rgba(0,232,196,0.6);}
        .modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.82);backdrop-filter:blur(20px);z-index:2000;justify-content:center;align-items:center;}
        .modal-content{ background:var(--card);border:1px solid var(--border-glow);border-radius:22px;padding:34px;min-width:400px; animation:popIn 0.3s cubic-bezier(0.22,1,0.36,1);}
        @keyframes popIn{from{transform:scale(0.91) translateY(14px);opacity:0;}to{transform:scale(1) translateY(0);opacity:1;}}
        .modal-content h3{font-family:'Nexa',sans-serif;font-weight:800;font-size:18px;}
        .alert{
            position:fixed;bottom:18px;right:18px;padding:10px 18px;border-radius:12px;
            font-size:12px;font-weight:700;z-index:3000;animation:alertSlide 0.3s ease;
            font-family:'Nexa','Calibri',sans-serif;
        }
        @keyframes alertSlide{from{transform:translateY(16px);opacity:0;}to{transform:translateY(0);opacity:1;}}
        .alert-success{background:rgba(0,200,168,0.15);color:var(--accent-lt);border:1px solid rgba(0,200,168,0.3);}
        .alert-error{background:rgba(240,64,90,0.15);color:var(--danger);}
        .hidden{display:none!important;}

        /* ====================== FOOTER ====================== */
        .page-footer {
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 800;
            height: 28px;
            background: rgba(3,6,15,0.92);
            backdrop-filter: blur(14px);
            border-top: 1px solid var(--border);
            display: flex; align-items: center; justify-content: center;
        }
        body.light .page-footer { background: rgba(238,242,250,0.94); }
        .page-footer span {
            font-family: 'Nexa', 'Calibri', sans-serif;
            font-size: 10px; font-weight: 700;
            color: var(--text-muted); letter-spacing: 0.04em;
        }
        .page-footer span a {
            color: var(--primary-lt); text-decoration: none;
            transition: color 0.2s;
        }
        .page-footer span a:hover { color: var(--accent-lt); }
        /* Push statusbar up so it doesn't overlap footer */
        .statusbar { bottom: 36px; }