:root {
            --nbsc-blue: #004a99;
            --nbsc-dark: #001a33;
            --nbsc-mid:  #003366;
            --nbsc-gold: #f0ad4e;
            --success:   #28a745;
            --error:     #dc3545;
            --orange:    #fd7e14;
        }

        *, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; margin: 0; padding: 0; }

        body {
            font-family: 'Montserrat', sans-serif;
            background: #f0f2f5;
            min-height: 100dvh;
            overflow-x: hidden;
        }
        .flag-btn {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 2px solid rgba(255,255,255,0.4);
    padding: 14px;
    border-radius: 12px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 0.8rem;
    text-transform: uppercase;
    width: 100%;
    margin-top: 10px;
    cursor: pointer;
    letter-spacing: 0.5px;
}

        /* ══════════════════════════════════════
            HOME SCREEN
        ══════════════════════════════════════ */
        #homeScreen {
            background: linear-gradient(180deg, var(--nbsc-mid) 0%, var(--nbsc-dark) 100%);
            min-height: 100dvh;
            width: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            color: white;
            position: fixed;
            top: 0; left: 0;
            z-index: 1000;
            padding: 20px;
        }

        .home-logo {
            width: 150px;
            max-width: 50%;
            height: auto;
            margin-bottom: 25px;
            filter: drop-shadow(0 4px 15px rgba(0,0,0,0.4));
        }

        .home-content h1 {
            font-size: clamp(1.5rem, 5vw, 2rem);
            margin: 0;
            font-weight: 800;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .home-content p {
            font-size: clamp(1rem, 3vw, 1.2rem);
            color: var(--nbsc-gold);
            font-weight: 600;
            margin: 10px 0 40px 0;
            text-transform: uppercase;
            opacity: 0.9;
        }

        .btn-primary {
            background: var(--nbsc-gold);
            color: var(--nbsc-dark);
            border: none;
            padding: 15px 40px;
            font-size: 15px;
            font-weight: 800;
            border-radius: 10px;
            cursor: pointer;
            text-transform: uppercase;
            width: 100%;
            max-width: 300px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
            margin-top: 15px;
            font-family: 'Montserrat', sans-serif;
        }

        .get-started-btn {
            background: white;
            color: var(--nbsc-blue);
        }

        .home-secondary-btn {
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.3);
            color: white;
            padding: 12px 20px;
            border-radius: 8px;
            font-size: 11px;
            font-weight: 800;
            cursor: pointer;
            letter-spacing: 1px;
            text-transform: uppercase;
            font-family: 'Montserrat', sans-serif;
            margin-top: 14px;
            width: 100%;
            max-width: 300px;
        }

        /* ══════════════════════════════════════
            LOGIN
        ══════════════════════════════════════ */
        #loginOverlay {
            position: fixed; inset: 0;
            background: linear-gradient(180deg, var(--nbsc-mid) 0%, var(--nbsc-dark) 100%);
            z-index: 9999;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            padding: 24px;
            overflow-y: auto;
        }

        .login-logo {
            width: 100px;
            max-width: 35%;
            margin-bottom: 12px;
            filter: drop-shadow(0 4px 15px rgba(0,0,0,0.4));
        }

        .login-title {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .login-subtitle {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--nbsc-gold);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
            opacity: 0.9;
        }

        .login-divider {
            width: 50px;
            height: 3px;
            background: var(--nbsc-gold);
            border-radius: 2px;
            margin: 0 auto 28px;
        }

        .login-input {
            width: 100%;
            max-width: 380px;
            padding: 18px 20px;
            margin: 7px 0;
            border-radius: 12px;
            border: 2px solid rgba(255,255,255,0.15);
            background: rgba(255,255,255,0.1);
            color: white;
            font-family: 'Montserrat', sans-serif;
            font-size: 16px;
            outline: none;
            transition: border-color 0.2s;
        }
        .login-input::placeholder { color: rgba(255,255,255,0.4); }
        .login-input:focus { border-color: var(--nbsc-gold); background: rgba(255,255,255,0.15); }

        .password-container {
            position: relative;
            width: 100%;
            max-width: 380px;
            margin: 7px 0;
        }

        .password-container .login-input {
            margin: 0;
            padding-right: 50px;
        }

        .toggle-password {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255,255,255,0.6);
            cursor: pointer;
            font-size: 20px;
            z-index: 10;
        }

        .login-btn {
            background: var(--nbsc-gold);
            color: var(--nbsc-dark);
            border: none;
            padding: 20px;
            font-size: 16px;
            font-weight: 800;
            border-radius: 12px;
            cursor: pointer;
            text-transform: uppercase;
            width: 100%;
            max-width: 380px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
            margin-top: 18px;
            font-family: 'Montserrat', sans-serif;
            letter-spacing: 1px;
        }
        .login-btn:active { opacity: 0.85; transform: scale(0.98); }

        #loginErr {
            color: var(--nbsc-gold);
            font-size: 13px;
            font-weight: 600;
            min-height: 22px;
            margin-top: 14px;
            text-align: center;
            max-width: 380px;
        }

        /* ══════════════════════════════════════
            SCANNER SCREEN
        ══════════════════════════════════════ */
        #scannerScreen {
            display: none;
            flex-direction: column;
            min-height: 100dvh;
        }

        .banner-container {
            width: 100%;
            background: var(--nbsc-blue);
            border-bottom: 4px solid var(--nbsc-gold);
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .banner-img {
            width: 100%;
            height: auto;
            max-height: 18vh;
            display: block;
            object-fit: cover;
        }

        /* ── Window Status Bar ── */
        #windowStatus {
            padding: 12px 20px;
            text-align: center;
            font-size: 0.8rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        #windowStatus.status-open {
            background: #d1fae5;
            color: #065f46;
            border-bottom: 2px solid #6ee7b7;
        }

        #windowStatus.status-closed {
            background: #fee2e2;
            color: #991b1b;
            border-bottom: 2px solid #fca5a5;
        }

        #windowStatus.status-loading {
            background: #f1f5f9;
            color: #64748b;
            border-bottom: 2px solid #e2e8f0;
        }

        .status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .status-dot.open  { background: #10b981; box-shadow: 0 0 0 3px rgba(16,185,129,0.25); }
        .status-dot.closed { background: #ef4444; }
        .status-dot.loading { background: #94a3b8; }

        /* Offline notice */
        #offline-status {
            display: none;
            background: #fff8e6;
            border-bottom: 3px solid var(--nbsc-gold);
            padding: 14px 20px;
        }

        .offline-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            max-width: 560px;
            margin: 0 auto;
        }

        .offline-label {
            font-size: 0.82rem;
            font-weight: 800;
            color: #7a4f00;
            flex: 1;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .offline-actions { display: flex; gap: 10px; flex-shrink: 0; }

        .sync-btn-main {
            background: var(--nbsc-blue);
            color: white;
            border: none;
            min-height: 44px;
            padding: 0 20px;
            border-radius: 10px;
            font-family: 'Montserrat', sans-serif;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            cursor: pointer;
        }

        .delete-btn-main {
            background: var(--error);
            color: white;
            border: none;
            min-height: 44px;
            padding: 0 16px;
            border-radius: 10px;
            font-family: 'Montserrat', sans-serif;
            font-size: 12px;
            font-weight: 800;
            text-transform: uppercase;
            cursor: pointer;
        }

        .scanner-content {
            flex: 1;
            padding: 18px 16px 32px;
            max-width: 560px;
            width: 100%;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .qr-wrapper {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 18px rgba(0,0,0,0.12);
        }

        .qr-wrapper #reader { border: none !important; padding-bottom: 10px !important; }
        .qr-wrapper #reader__scan_region { background: #000; }
        .qr-wrapper #reader__dashboard { padding: 14px 16px !important; }

        .qr-wrapper #reader__dashboard_section button {
            background: var(--nbsc-blue) !important;
            color: white !important;
            border: none !important;
            padding: 16px 18px !important;
            border-radius: 10px !important;
            font-family: 'Montserrat', sans-serif !important;
            font-weight: 800 !important;
            font-size: 14px !important;
            cursor: pointer !important;
            width: 92% !important;
            margin: 6px auto !important;
            display: block !important;
            min-height: 52px !important;
        }

        .qr-wrapper #reader__dashboard_section select {
            padding: 14px 16px !important;
            width: 92% !important;
            border-radius: 10px !important;
            margin: 8px auto !important;
            font-family: 'Montserrat', sans-serif !important;
            border: 2px solid #ddd !important;
            font-size: 15px !important;
            display: block !important;
            min-height: 52px !important;
            color: var(--nbsc-dark) !important;
        }

        .qr-wrapper #reader__dashboard_section span,
        .qr-wrapper #reader__dashboard_section a {
            font-family: 'Montserrat', sans-serif !important;
            font-size: 13px !important;
            color: var(--nbsc-blue) !important;
            display: block !important;
            margin: 6px 16px !important;
            text-decoration: none !important;
        }

        .qr-wrapper #reader__dashboard_section_csr span { color: red !important; font-weight: bold !important; }

        .manual-card {
            background: white;
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 4px 18px rgba(0,0,0,0.08);
        }

        .manual-label {
            font-size: 0.68rem;
            font-weight: 800;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--nbsc-blue);
            margin-bottom: 12px;
        }

        .token-input {
            width: 100%;
            padding: 18px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            margin-bottom: 12px;
            text-align: center;
            font-family: 'Montserrat', sans-serif;
            font-size: 16px;
            color: var(--nbsc-dark);
            outline: none;
            transition: border-color 0.2s;
        }
        .token-input:focus { border-color: var(--nbsc-gold); }
        .token-input::placeholder { color: #bbb; font-size: 14px; }

        .submit-token-btn {
            background: var(--nbsc-dark);
            color: white;
            border: none;
            padding: 18px;
            border-radius: 12px;
            font-weight: 800;
            width: 100%;
            cursor: pointer;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-family: 'Montserrat', sans-serif;
            font-size: 14px;
            min-height: 56px;
        }
        .submit-token-btn:active { opacity: 0.85; }

        #result {
            display: none;
            border-radius: 16px;
            padding: 32px 20px 24px;
            text-align: center;
            box-shadow: 0 8px 28px rgba(0,0,0,0.15);
            animation: popIn 0.3s ease-out;
        }

        @keyframes popIn {
            from { opacity: 0; transform: scale(0.95) translateY(8px); }
            to   { opacity: 1; transform: scale(1) translateY(0); }
        }
        .flag-btn {
    margin-top: 15px;
    background-color: #ffc107; /* Warning Yellow */
    color: #000;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: background 0.3s;
}

.flag-btn:hover {
    background-color: #e0a800;
}

.result-card.warning {
    border-left: 5px solid #ff9800;
    background: #fff3e0;
    padding: 10px;
}

        #result .result-icon { font-size: 3rem; margin-bottom: 10px; display: block; }
        #result h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 10px; color: inherit; }
        #result p  { font-size: 1.05rem; line-height: 1.6; word-break: break-word; }

        .success    { background: var(--success); color: white; }
        .error      { background: var(--error);   color: white; }
        .warning    { background: var(--orange);  color: white; }
        .processing { background: #6c757d;        color: white; }

        .scan-btn-next {
            background: white !important;
            color: var(--nbsc-dark) !important;
            border: none !important;
            padding: 20px !important;
            border-radius: 12px !important;
            text-transform: uppercase !important;
            font-weight: 800 !important;
            font-size: 1rem !important;
            font-family: 'Montserrat', sans-serif !important;
            width: 100% !important;
            margin-top: 20px !important;
            cursor: pointer !important;
            letter-spacing: 0.5px !important;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2) !important;
            min-height: 58px !important;
        }

        /* ══════════════════════════════════════
            MODAL
        ══════════════════════════════════════ */
        #syncModal {
            display: none;
            position: fixed; inset: 0;
            z-index: 5000;
            background: rgba(0,0,0,0.65);
            justify-content: center;
            align-items: center;
            padding: 24px;
            backdrop-filter: blur(4px);
        }

        .modal-content {
            background: var(--nbsc-dark);
            border: 2px solid var(--nbsc-gold);
            border-radius: 20px;
            padding: 32px 24px;
            text-align: center;
            width: 100%;
            max-width: 320px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.4);
            animation: popIn 0.25s ease-out;
            color: white;
        }

        .modal-content #modal-icon  { font-size: 2.5rem; margin-bottom: 10px; display: block; }
        .modal-content #modal-title { font-size: 1.15rem; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 10px; color: white; }
        .modal-content #modal-text  { font-size: 0.9rem; color: rgba(255,255,255,0.7); line-height: 1.6; }

        .modal-btn {
            background: var(--nbsc-gold);
            color: var(--nbsc-dark);
            border: none;
            padding: 18px;
            border-radius: 12px;
            font-family: 'Montserrat', sans-serif;
            font-size: 15px;
            font-weight: 800;
            text-transform: uppercase;
            cursor: pointer;
            margin-top: 22px;
            width: 100%;
            letter-spacing: 0.5px;
            min-height: 56px;
        }

        /* Progress Bar Styles */
.progress-container {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin: 15px 0;
    height: 12px;
    overflow: hidden;
    display: none; /* Hidden by default */
}

#syncProgressBar {
    width: 0%;
    height: 100%;
    background-color: var(--nbsc-gold);
    transition: width 0.3s ease;
}

#progressText {
    font-size: 0.75rem;
    color: var(--nbsc-gold);
    font-weight: 800;
    margin-bottom: 5px;
    display: block;
}

/* Install banner (PWA) */
.install-banner {
    margin-top: 20px;
    text-align: center;
}
.install-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
    padding: 12px 24px;
    border-radius: 10px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    width: 100%;
    max-width: 280px;
}
.install-btn:hover, .install-btn:active {
    background: rgba(255,255,255,0.3);
}
.install-hint-ios {
    margin-top: 10px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.8);
}